:root {
    --ink: #0b1728;
    --muted: #64748b;
    --line: #d9e2ef;
    --panel: #ffffff;
    --soft: #f5f8fc;
    --navy: #061321;
    --navy-2: #0b2540;
    --green: #05c98b;
    --green-dark: #049e70;
    --blue: #3167ff;
    --violet: #7357ff;
    --danger: #dc2626;
    --shadow: 0 22px 60px rgba(7, 21, 37, 0.16);
    --radius: 8px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: #fff;
    line-height: 1.5;
}

img,
video {
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

.site-header {
    position: absolute;
    z-index: 20;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 22px;
    min-height: 78px;
    padding: 18px clamp(20px, 5vw, 54px);
    color: #fff;
}

.light-header .site-header {
    position: sticky;
    background: rgba(6, 19, 33, 0.98);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: max-content;
}

.brand-logo {
    display: block;
    width: 220px;
    max-width: min(42vw, 220px);
    height: auto;
    border-radius: 6px;
    background: #fff;
}

.site-header .brand-logo {
    width: 136px;
    max-width: min(26vw, 136px);
}

.footer-brand .brand-logo {
    width: 210px;
    max-width: 100%;
}

.auth-panel .brand-logo {
    width: 230px;
    max-width: 100%;
}

.admin-sidebar .brand {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.admin-sidebar .brand-logo {
    width: 215px;
    max-width: 100%;
}

.brand-context {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 2px solid rgba(255, 255, 255, 0.74);
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(145deg, #07344b, #09be85);
    font-weight: 900;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 1.08rem;
    line-height: 1.05;
    text-transform: uppercase;
}

.brand small {
    margin-top: 2px;
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(8px, 1.5vw, 18px);
    flex: 1;
    font-size: 0.88rem;
    font-weight: 800;
}

.main-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 10px;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.86);
    white-space: nowrap;
}

.main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.main-nav a.active {
    position: relative;
    color: #fff;
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -7px;
    width: 24px;
    height: 3px;
    border-radius: 999px;
    background: var(--green);
    transform: translateX(-50%);
}

.header-actions,
.hero-actions,
.cta-actions,
.row-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 42px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 800;
    font-size: 0.94rem;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--green), #08b783);
    box-shadow: 0 12px 28px rgba(5, 201, 139, 0.22);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #07d997, var(--green-dark));
}

.btn-ghost {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.34);
}

.btn-ghost.dark {
    color: var(--ink);
    background: #fff;
    border-color: var(--line);
}

.btn-outline {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.55);
}

.btn-light {
    color: var(--navy);
    background: #fff;
}

.btn-outline-light {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.62);
}

.page-main .btn-outline {
    color: var(--ink);
    background: #fff;
    border-color: #c8d7e6;
}

.btn-danger {
    min-height: 36px;
    color: #fff;
    background: var(--danger);
}

.btn-large {
    min-height: 62px;
    padding: 0 32px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--blue);
    font-weight: 800;
}

.hero {
    position: relative;
    min-height: 760px;
    overflow: hidden;
    color: #fff;
    background: var(--navy);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(4, 16, 28, 0.94) 0%, rgba(4, 16, 28, 0.78) 37%, rgba(4, 16, 28, 0.30) 72%, rgba(4, 16, 28, 0.16) 100%),
        linear-gradient(0deg, rgba(4, 16, 28, 0.96) 0%, rgba(4, 16, 28, 0) 42%),
        url("https://images.unsplash.com/photo-1503376780353-7e6692767b70?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr);
    align-items: center;
    gap: 36px;
    max-width: 1400px;
    min-height: 760px;
    margin: 0 auto;
    padding: 118px clamp(20px, 5vw, 54px) 70px;
}

.eyebrow,
.section-kicker,
.course-category {
    display: inline-flex;
    align-items: center;
    width: max-content;
    max-width: 100%;
    min-height: 34px;
    padding: 0 14px;
    border: 1px solid rgba(5, 201, 139, 0.5);
    border-radius: 999px;
    color: var(--green);
    background: rgba(5, 201, 139, 0.08);
    font-weight: 900;
    font-size: 0.78rem;
    text-transform: uppercase;
}

.hero h1 {
    margin: 22px 0 18px;
    font-size: 4.45rem;
    line-height: 1.03;
}

.hero h1 span {
    color: var(--green);
}

.hero-copy p {
    max-width: 640px;
    margin: 0 0 34px;
    color: rgba(255, 255, 255, 0.86);
    font-size: 1.25rem;
}

.hero-points {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    margin-top: 56px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.92rem;
    font-weight: 800;
}

.hero-points span {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.icon-device,
.icon-user,
.icon-badge {
    display: inline-block;
    width: 22px;
    height: 22px;
    border: 2px solid var(--green);
    border-radius: 5px;
}

.icon-user {
    border-radius: 50%;
}

.icon-badge {
    position: relative;
    border: 0;
    border-radius: 0;
    background: var(--green);
    clip-path: polygon(50% 0, 90% 16%, 90% 52%, 50% 100%, 10% 52%, 10% 16%);
    transform: none;
}

.icon-badge::after {
    content: "";
    position: absolute;
    inset: 3px;
    background: #061321;
    clip-path: polygon(50% 0, 90% 16%, 90% 52%, 50% 100%, 10% 52%, 10% 16%);
}

.hero-product {
    position: relative;
    min-height: 520px;
}

.hero-devices {
    position: absolute;
    right: -34px;
    top: 18px;
    width: min(850px, 112%);
    height: auto;
    filter: drop-shadow(0 34px 46px rgba(0, 0, 0, 0.42));
    transform: rotate(-1deg);
}

.laptop-shell {
    position: absolute;
    right: 70px;
    top: 34px;
    width: min(720px, 92%);
    min-height: 396px;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 22px;
    background: linear-gradient(145deg, #1a2533, #080c12);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.45);
    transform: perspective(900px) rotateY(-8deg) rotateX(3deg);
}

.laptop-shell::after {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    bottom: -24px;
    height: 22px;
    border-radius: 0 0 22px 22px;
    background: linear-gradient(180deg, #293443, #080d14);
}

.player-top {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 32px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.84rem;
}

.player-top span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 16px 0 0 #facc15, 32px 0 0 #ef4444;
}

.player-view {
    display: grid;
    grid-template-columns: 1fr 178px;
    gap: 14px;
    min-height: 292px;
}

.road-video,
.feature-media-2,
.video-placeholder {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    background:
        linear-gradient(0deg, rgba(3, 9, 18, 0.36), rgba(3, 9, 18, 0.16)),
        url("https://images.unsplash.com/photo-1449965408869-eaa3f722e40d?auto=format&fit=crop&w=900&q=80") center/cover;
}

.lesson-list {
    display: grid;
    gap: 10px;
    padding: 16px;
    border-radius: var(--radius);
    color: #0d1b2a;
    background: #f8fafc;
}

.lesson-list small {
    color: var(--muted);
    font-weight: 900;
}

.lesson-list span {
    display: block;
    padding: 9px 10px;
    border-radius: 6px;
    background: #fff;
    color: #334155;
    font-size: 0.84rem;
    font-weight: 800;
}

.lesson-list .active {
    color: #047857;
    background: #dff8ed;
}

.progress-line {
    height: 5px;
    margin-top: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
}

.progress-line span {
    display: block;
    width: 64%;
    height: 100%;
    border-radius: inherit;
    background: var(--green);
}

.phone-shell {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 190px;
    padding: 10px;
    border-radius: 30px;
    background: #111827;
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.42);
    transform: rotate(7deg);
}

.phone-screen {
    min-height: 342px;
    padding: 22px 16px;
    border-radius: 22px;
    color: var(--ink);
    background: #fff;
}

.phone-screen small,
.phone-screen strong {
    display: block;
}

.progress-ring {
    display: grid;
    place-items: center;
    width: 104px;
    height: 104px;
    margin: 24px auto;
    border-radius: 50%;
    background: conic-gradient(var(--green) 72%, #e5e7eb 0);
}

.progress-ring span {
    display: grid;
    place-items: center;
    width: 78px;
    height: 78px;
    border-radius: 50%;
    background: #fff;
    font-weight: 900;
    font-size: 1.35rem;
}

.phone-screen ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 0.75rem;
    font-weight: 800;
}

.phone-screen li {
    padding: 8px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
}

.play-button {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    width: 70px;
    height: 70px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.24);
    transform: translate(-50%, -50%);
}

.play-button::after {
    content: "";
    position: absolute;
    left: 29px;
    top: 22px;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    border-left: 18px solid #fff;
}

.section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 48px clamp(20px, 5vw, 54px);
}

.section-narrow {
    max-width: 1300px;
    margin: 0 auto;
}

.course-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 0;
}

.feature-card,
.course-tile,
.admin-panel,
.metric-grid article {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.07);
}

.feature-card {
    position: relative;
    display: grid;
    min-height: 336px;
    overflow: hidden;
}

.feature-media {
    position: relative;
    min-height: 132px;
    margin: 26px 26px 0;
    border-radius: var(--radius);
    overflow: hidden;
}

.feature-theory {
    grid-template-columns: 42% minmax(0, 1fr);
}

.feature-theory .feature-media {
    min-height: 286px;
    margin: 24px 0 24px 24px;
    background:
        radial-gradient(circle at 18% 14%, rgba(255, 255, 255, 0.45), transparent 24%),
        linear-gradient(160deg, #10bb86 0%, #7ddfc5 56%, #effcf7 100%);
}

.feature-media-1 {
    background:
        radial-gradient(circle at 18% 14%, rgba(255, 255, 255, 0.45), transparent 24%),
        linear-gradient(160deg, #10bb86 0%, #7ddfc5 56%, #effcf7 100%);
}

.feature-driver,
.feature-live {
    grid-template-rows: 154px 1fr;
}

.feature-driver .feature-media,
.feature-live .feature-media {
    min-height: 132px;
    margin: 26px 24px 0 56px;
}

.feature-media-2::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(3, 10, 18, 0), rgba(3, 10, 18, 0.16));
}

.feature-media-3 {
    background: linear-gradient(135deg, #fbfdff 0%, #f6fbff 58%, #eefdf8 100%);
}

.course-device {
    position: absolute;
    display: block;
    height: auto;
    pointer-events: none;
}

.course-phone {
    left: 48%;
    bottom: 7px;
    width: clamp(118px, 9vw, 138px);
    max-width: none;
    transform: translateX(-50%) rotate(-3deg);
    filter: drop-shadow(0 18px 22px rgba(6, 19, 33, 0.22));
}

.course-tablet {
    right: 8px;
    top: 18px;
    width: 70%;
    transform: rotate(-7deg);
    filter: drop-shadow(0 16px 20px rgba(6, 19, 33, 0.20));
}

.feature-live .feature-media::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 24%, rgba(115, 87, 255, 0.14), transparent 30%),
        radial-gradient(circle at 86% 78%, rgba(5, 201, 139, 0.12), transparent 26%);
}

.feature-body {
    padding: 24px 26px 24px;
}

.feature-theory .feature-body {
    padding: 34px 22px 24px;
}

.card-icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(145deg, var(--green), var(--blue));
    font-weight: 900;
}

.feature-theory .card-icon {
    background: linear-gradient(145deg, var(--green), #0bbf7c);
}

.feature-driver .card-icon {
    background: linear-gradient(145deg, #366dff, #19b9e6);
}

.feature-driver .card-icon,
.feature-live .card-icon {
    position: absolute;
    top: 46px;
    left: 24px;
    z-index: 3;
}

.feature-theory .card-icon {
    position: relative;
    margin-bottom: 15px;
}

.feature-card:nth-child(3) .card-icon {
    background: linear-gradient(145deg, var(--violet), var(--blue));
}

.card-icon::before,
.card-icon::after {
    content: "";
    position: absolute;
}

.icon-play::before {
    width: 22px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.92);
    border-radius: 4px;
}

.icon-play::after {
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 8px solid #fff;
    transform: translateX(2px);
}

.icon-book::before {
    width: 24px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.92);
    border-radius: 4px;
}

.icon-book::after {
    width: 2px;
    height: 20px;
    background: rgba(255, 255, 255, 0.92);
}

.icon-people::before {
    width: 25px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.92);
    border-top: 0;
    border-radius: 0 0 14px 14px;
    transform: translateY(6px);
}

.icon-people::after {
    width: 8px;
    height: 8px;
    border: 2px solid rgba(255, 255, 255, 0.92);
    border-radius: 50%;
    box-shadow: -10px 7px 0 -3px rgba(255, 255, 255, 0.92), 10px 7px 0 -3px rgba(255, 255, 255, 0.92);
    transform: translateY(-5px);
}

.feature-card h2,
.course-tile h2,
.how-it-works h2,
.cta-band h2,
.admin-heading h1,
.admin-panel h2 {
    margin: 0;
    line-height: 1.15;
}

.feature-card h2 {
    min-height: 0;
    font-size: 1.28rem;
}

.feature-card p,
.course-tile p,
.section-intro,
.steps p,
.trust-row span,
.admin-heading p,
.panel-heading p,
.empty-state {
    color: var(--muted);
}

.feature-card p {
    min-height: 52px;
    margin: 12px 0 0;
    font-size: 0.86rem;
}

.feature-card .check-list {
    gap: 8px;
    margin: 18px 0;
    font-size: 0.84rem;
}

.feature-card .text-link {
    font-size: 0.9rem;
    white-space: nowrap;
}

.feature-theory .text-link {
    font-size: 0.82rem;
}


.check-list {
    display: grid;
    gap: 9px;
    margin: 22px 0;
    padding: 0;
    list-style: none;
    color: #475569;
    font-size: 0.94rem;
}

.check-list li {
    position: relative;
    padding-left: 24px;
}

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: 6px;
    border-left: 2px solid var(--green);
    border-bottom: 2px solid var(--green);
    transform: rotate(-45deg);
}

.stats-band {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-top: 8px;
    padding: 34px 48px;
    border-radius: var(--radius);
    color: #fff;
    background: linear-gradient(110deg, #061321, #0b3152);
}

.stats-band div {
    display: grid;
    gap: 5px;
    padding-left: 26px;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.stats-band div:first-child {
    border-left: 0;
}

.stats-band strong {
    font-size: 1.8rem;
}

.stats-band span {
    color: rgba(255, 255, 255, 0.78);
}

.how-it-works {
    text-align: center;
}

.how-it-works h2 {
    margin-top: 14px;
    font-size: 2.2rem;
}

.steps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 36px;
    margin-top: 48px;
}

.steps::before {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    top: 40px;
    border-top: 2px dashed #c8d5e5;
}

.steps div {
    position: relative;
    z-index: 1;
}

.step-icon {
    display: grid;
    place-items: center;
    width: 74px;
    height: 74px;
    margin: 0 auto 18px;
    border: 1px solid rgba(5, 201, 139, 0.45);
    border-radius: 50%;
    color: var(--navy);
    background: #fff;
    box-shadow: 0 0 0 12px #fff;
    font-weight: 900;
}

.review-banner {
    position: relative;
    display: grid;
    grid-template-columns: 100px 220px minmax(280px, 1fr) 300px;
    align-items: center;
    gap: 28px;
    min-height: 230px;
    margin-top: 8px;
    padding: 34px 42px;
    overflow: hidden;
    border-radius: var(--radius);
    background: linear-gradient(100deg, #effdf8, #f8fbff);
}

.quote-mark {
    color: rgba(5, 201, 139, 0.28);
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
}

.avatar-photo {
    width: 94px;
    height: 94px;
    border-radius: 50%;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0), rgba(5, 201, 139, 0.25)),
        url("https://images.unsplash.com/photo-1494790108377-be9c29b29330?auto=format&fit=crop&w=300&q=80") center/cover;
}

.review-person {
    display: flex;
    align-items: center;
    gap: 16px;
}

.review-person span {
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
}

.review-banner blockquote {
    margin: 0;
    color: #334155;
    font-size: 1.12rem;
}

.review-image {
    height: 160px;
    border-radius: var(--radius);
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0)),
        url("https://images.unsplash.com/photo-1544620347-c4fd4a3d5957?auto=format&fit=crop&w=600&q=80") center/cover;
}

.cta-band {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 22px;
    margin-top: 28px;
    padding: 36px 46px;
    border-radius: var(--radius);
    color: #fff;
    background: linear-gradient(110deg, var(--green), #044999);
}

.cta-icon {
    display: inline-block;
    width: 66px;
    height: 66px;
    margin-right: 20px;
    border: 2px solid rgba(255, 255, 255, 0.55);
    border-radius: 50%;
    vertical-align: middle;
}

.cta-band h2 {
    display: inline-block;
    margin-right: 12px;
    font-size: 1.9rem;
}

.cta-band p {
    margin: 8px 0 0 90px;
    color: rgba(255, 255, 255, 0.88);
}

.trust-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 34px 0 48px;
}

.trust-row div {
    display: grid;
    gap: 4px;
}

.site-footer {
    padding: 44px clamp(20px, 5vw, 54px) 28px;
    color: rgba(255, 255, 255, 0.8);
    background: #061321;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.45fr repeat(4, 1fr);
    gap: 42px;
    max-width: 1300px;
    margin: 0 auto;
}

.footer-grid h3 {
    margin: 0 0 14px;
    color: #fff;
    font-size: 0.96rem;
}

.footer-grid a {
    display: block;
    margin: 8px 0;
}

.footer-grid p {
    max-width: 300px;
}

.social-row {
    display: flex;
    gap: 12px;
}

.social-row a {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.78rem;
    font-weight: 900;
}

.copyright {
    max-width: 1300px;
    margin: 36px auto 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.55);
}

.page-main {
    min-height: 70vh;
    background: #f8fbff;
}

.page-hero,
.course-detail-hero {
    max-width: 1300px;
    margin: 0 auto;
    padding: 80px clamp(20px, 5vw, 54px) 34px;
}

.page-hero h1,
.course-detail-hero h1 {
    max-width: 780px;
    margin: 18px 0 14px;
    font-size: 3rem;
    line-height: 1.08;
}

.page-hero p,
.course-detail-hero p {
    max-width: 720px;
    color: var(--muted);
    font-size: 1.1rem;
}

.course-listing {
    display: grid;
    gap: 20px;
}

.course-listing.section {
    max-width: 1300px;
}

.course-filter-bar.section {
    max-width: calc(1300px - (clamp(20px, 5vw, 54px) * 2));
}

.course-tile {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 24px;
    padding: 28px;
}

.course-meta {
    display: grid;
    align-content: center;
    gap: 12px;
    padding-left: 24px;
    border-left: 1px solid var(--line);
}

.course-meta strong {
    font-size: 2rem;
}

.course-detail-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 26px;
    align-items: end;
}

.course-summary {
    display: grid;
    gap: 10px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
}

.course-summary strong {
    font-size: 2.3rem;
}

.course-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 24px;
    align-items: start;
}

.lesson-player,
.lesson-panel {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
}

.lesson-player video,
.video-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius);
    background-color: #0f172a;
}

.lesson-panel {
    display: grid;
    gap: 12px;
}

.lesson-row {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
}

.lesson-row strong,
.lesson-row span {
    display: block;
}

.lesson-row span,
.lesson-row small {
    color: var(--muted);
}

.auth-page {
    min-height: 100vh;
    color: #fff;
    background:
        linear-gradient(90deg, rgba(3, 12, 22, 0.98), rgba(3, 12, 22, 0.78)),
        url("https://images.unsplash.com/photo-1492144534655-ae79c964c9d7?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.auth-shell {
    display: grid;
    grid-template-columns: minmax(340px, 480px) minmax(360px, 1fr);
    gap: 60px;
    align-items: center;
    min-height: 100vh;
    max-width: 1160px;
    margin: 0 auto;
    padding: 40px clamp(20px, 5vw, 54px);
}

.auth-panel {
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius);
    background: rgba(5, 16, 30, 0.78);
    backdrop-filter: blur(14px);
}

.auth-panel h1 {
    margin: 34px 0 8px;
    font-size: 2.3rem;
}

.auth-panel p {
    color: rgba(255, 255, 255, 0.76);
}

.auth-note {
    margin-bottom: 0;
    font-size: 0.88rem;
}

.auth-art {
    position: relative;
    min-height: 450px;
}

.auth-art .laptop-shell {
    right: auto;
    left: 0;
    top: 40px;
}

.admin-preview-chart {
    display: flex;
    align-items: end;
    gap: 18px;
    height: 280px;
    padding: 30px;
    border-radius: var(--radius);
    background: linear-gradient(145deg, #0f2439, #08111d);
}

.admin-preview-chart span {
    flex: 1;
    border-radius: 8px 8px 0 0;
    background: linear-gradient(180deg, var(--green), var(--blue));
}

.admin-preview-chart span:nth-child(1) { height: 42%; }
.admin-preview-chart span:nth-child(2) { height: 74%; }
.admin-preview-chart span:nth-child(3) { height: 58%; }
.admin-preview-chart span:nth-child(4) { height: 88%; }

.form-stack {
    display: grid;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

label {
    display: grid;
    gap: 7px;
    color: inherit;
    font-weight: 800;
    font-size: 0.92rem;
}

input,
select,
textarea {
    width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink);
    background: #fff;
}

textarea {
    resize: vertical;
}

.alert {
    margin: 0 0 18px;
    padding: 14px 16px;
    border-radius: 6px;
    font-weight: 800;
}

.alert-error {
    color: #991b1b;
    background: #fee2e2;
}

.alert-success {
    color: #065f46;
    background: #d1fae5;
}

.admin-page {
    min-height: 100vh;
    background: #f4f7fb;
}

.admin-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 278px;
    padding: 26px;
    color: #fff;
    background: linear-gradient(180deg, #061321, #0b2540);
}

.admin-nav {
    display: grid;
    gap: 8px;
    margin-top: 34px;
}

.admin-nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 14px;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.78);
    font-weight: 800;
}

.admin-nav a:hover,
.admin-nav a.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.admin-main {
    margin-left: 278px;
    padding: 24px clamp(18px, 3vw, 38px) 44px;
}

.admin-topbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 16px;
    min-height: 64px;
    margin-bottom: 20px;
}

.admin-topbar span {
    display: block;
    color: var(--muted);
    font-size: 0.82rem;
}

.admin-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 20px;
    margin-bottom: 24px;
}

.admin-heading span {
    color: var(--green-dark);
    font-weight: 900;
    text-transform: uppercase;
}

.admin-heading h1 {
    margin-top: 6px;
    font-size: 2.4rem;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}

.metric-grid article {
    padding: 24px;
}

.metric-grid span {
    display: block;
    color: var(--muted);
    font-weight: 800;
}

.metric-grid strong {
    display: block;
    margin-top: 10px;
    font-size: 2.2rem;
}

.admin-panel {
    padding: 24px;
    margin-bottom: 22px;
}

.panel-heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.admin-grid {
    display: grid;
    gap: 22px;
    align-items: start;
}

.two-columns {
    grid-template-columns: minmax(0, 0.86fr) minmax(360px, 1fr);
}

.wide-left {
    grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 15px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: middle;
}

th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
}

td span {
    display: block;
    color: var(--muted);
    font-size: 0.88rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    color: #475569;
    background: #e2e8f0;
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: capitalize;
}

.status-pill.published {
    color: #047857;
    background: #d1fae5;
}

.status-pill.draft {
    color: #92400e;
    background: #fef3c7;
}

.status-pill.paid,
.status-pill.active,
.status-pill.completed,
.status-pill.trialing {
    color: #047857;
    background: #d1fae5;
}

.status-pill.pending,
.status-pill.open,
.status-pill.incomplete,
.status-pill.past_due {
    color: #92400e;
    background: #fef3c7;
}

.status-pill.answered {
    color: #1d4ed8;
    background: #dbeafe;
}

.status-pill.failed,
.status-pill.cancelled,
.status-pill.canceled,
.status-pill.refunded,
.status-pill.unpaid,
.status-pill.incomplete_expired,
.status-pill.closed {
    color: #991b1b;
    background: #fee2e2;
}

.support-admin-grid {
    grid-template-columns: minmax(320px, 0.42fr) minmax(0, 0.58fr);
}

.support-status-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.support-status-tabs a {
    min-height: 34px;
    padding: 8px 12px;
    border: 1px solid #dbe4ef;
    border-radius: 999px;
    color: #516278;
    font-weight: 900;
}

.support-status-tabs a.is-active,
.support-status-tabs a:hover {
    color: var(--green-dark);
    border-color: rgba(5, 201, 139, 0.35);
    background: rgba(5, 201, 139, 0.1);
}

.support-admin-list,
.support-thread {
    display: grid;
    gap: 12px;
}

.support-admin-row {
    display: grid;
    gap: 7px;
    padding: 14px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #f8fbff;
    color: var(--ink);
}

.support-admin-row.is-active,
.support-admin-row:hover {
    border-color: rgba(5, 201, 139, 0.45);
    background: #fff;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.07);
}

.support-admin-row small,
.support-admin-row em {
    color: var(--muted);
    font-style: normal;
}

.support-ticket-admin-heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.support-ticket-admin-heading h2 {
    margin: 10px 0 8px;
    font-size: 1.7rem;
    line-height: 1.15;
}

.support-ticket-admin-heading p {
    margin: 0;
    color: var(--muted);
}

.support-message {
    display: grid;
    gap: 8px;
    padding: 16px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #fff;
}

.support-message.admin {
    border-left: 4px solid var(--green);
    background: #f8fffc;
}

.support-message span {
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 900;
    text-transform: uppercase;
}

.support-message p {
    margin: 0;
    color: #33445d;
    line-height: 1.65;
}

.support-reply-form {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

.course-admin-list {
    display: grid;
    gap: 12px;
}

.course-workflow-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}

.course-workflow-stats article {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.06);
}

.course-workflow-stats span {
    display: block;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.course-workflow-stats strong {
    display: block;
    margin-top: 8px;
    color: var(--ink);
    font-size: 1.85rem;
    line-height: 1;
}

.course-workflow-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 390px);
}

.course-index-panel {
    min-width: 0;
}

.course-create-panel {
    position: sticky;
    top: 92px;
}

.course-admin-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.05);
}

.course-admin-card-main {
    min-width: 0;
}

.course-title-line {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.course-title-line h3 {
    margin: 0;
    max-width: 42rem;
    font-size: 1.14rem;
    line-height: 1.28;
}

.course-meta-row,
.course-content-counts {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.course-meta-row {
    margin-top: 8px;
}

.course-meta-row span,
.course-content-counts span {
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 800;
}

.course-meta-row span {
    min-height: 26px;
    padding: 3px 9px;
    border-radius: 999px;
    background: #f3f7fb;
}

.course-content-counts {
    margin-top: 13px;
}

.course-content-counts strong {
    color: var(--ink);
}

.course-card-actions {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    gap: 10px;
    align-items: center;
}

.course-card-actions .btn {
    min-height: 38px;
    padding: 0 16px;
}

.course-advanced-fields {
    display: grid;
    gap: 14px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fbff;
}

.course-advanced-fields summary {
    cursor: pointer;
    color: var(--ink);
    font-weight: 900;
}

.course-advanced-fields[open] summary {
    margin-bottom: 8px;
}

.course-create-form .btn-primary {
    width: 100%;
}

.admin-empty-state {
    display: grid;
    justify-items: start;
    gap: 10px;
    padding: 28px;
    border: 1px dashed #cbd8e6;
    border-radius: 8px;
    background: #f8fbff;
}

.admin-empty-state h3,
.admin-empty-state p {
    margin: 0;
}

@media (max-width: 1180px) {
    .course-workflow-grid {
        grid-template-columns: 1fr;
    }

    .course-create-panel {
        position: static;
    }
}

@media (max-width: 760px) {
    .course-workflow-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .course-admin-card {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .course-title-line {
        flex-direction: column;
        align-items: flex-start;
    }

    .course-card-actions {
        grid-template-columns: 1fr;
    }

    .course-card-actions .btn,
    .course-card-actions form,
    .course-card-actions button {
        width: 100%;
    }
}

@media (max-width: 520px) {
    .course-workflow-stats {
        grid-template-columns: 1fr;
    }
}

.admin-list-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
}

.admin-list-row strong,
.admin-list-row span {
    display: block;
}

.admin-list-row span {
    color: var(--muted);
    font-size: 0.88rem;
}

.media-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}

.media-stats article {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
}

.media-stats span,
.media-item-main small {
    display: block;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 800;
}

.media-stats strong {
    display: block;
    margin-top: 8px;
    font-size: 1.8rem;
}

.media-admin-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.media-library-panel {
    margin-top: 4px;
}

.media-library-list {
    display: grid;
    gap: 12px;
}

.media-item-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
}

.media-item-card summary {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    min-height: 92px;
    padding: 14px;
    cursor: pointer;
    list-style: none;
}

.media-item-card summary::-webkit-details-marker {
    display: none;
}

.media-thumb {
    display: grid;
    place-items: center;
    width: 88px;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 6px;
    color: #fff;
    background: linear-gradient(135deg, #1d2732, #0b3152);
}

.media-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-thumb strong {
    font-size: 1.4rem;
}

.media-item-main strong {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.media-item-body {
    display: grid;
    gap: 14px;
    padding: 16px;
    border-top: 1px solid var(--line);
    background: #f8fbff;
}

.media-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

@media (max-width: 980px) {
    .media-stats,
    .media-admin-grid,
    .support-admin-grid {
        grid-template-columns: 1fr;
    }

    .media-item-card summary {
        grid-template-columns: 74px minmax(0, 1fr);
    }

    .media-thumb {
        width: 74px;
    }

    .media-item-card summary .status-pill {
        grid-column: 2;
        width: max-content;
    }
}

.settings-panel {
    max-width: 760px;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.08);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: #fff;
}

@media (max-width: 1180px) {
    .site-header {
        gap: 16px;
    }

    .site-header .brand-logo {
        width: 124px;
        max-width: 24vw;
    }

    .main-nav {
        gap: 14px;
        font-size: 0.84rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        padding-top: 120px;
    }

    .hero-product {
        min-height: 440px;
    }

    .hero-devices {
        right: 0;
        top: 0;
        width: min(820px, 100%);
    }

    .laptop-shell {
        left: 0;
        right: auto;
    }

    .course-cards,
    .steps,
    .trust-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .review-banner {
        grid-template-columns: 80px 1fr;
    }

    .review-image {
        display: none;
    }

    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .nav-toggle {
        display: block;
        margin-left: auto;
    }

    .main-nav {
        position: absolute;
        left: 20px;
        right: 20px;
        top: 76px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: var(--radius);
        background: rgba(6, 19, 33, 0.98);
    }

    .main-nav.is-open {
        display: flex;
    }

    .header-actions {
        display: none;
    }

    .hero h1 {
        font-size: 3.1rem;
    }

    .hero-content {
        min-height: auto;
    }

    .hero-product {
        min-height: 520px;
    }

    .hero-devices {
        left: 50%;
        right: auto;
        width: min(760px, 108%);
        transform: translateX(-50%) rotate(-1deg);
    }

    .laptop-shell {
        width: 100%;
        transform: none;
    }

    .phone-shell {
        right: 10px;
    }

    .course-cards,
    .stats-band,
    .steps,
    .trust-row,
    .course-tile,
    .course-detail-hero,
    .course-detail-grid,
    .auth-shell,
    .metric-grid,
    .two-columns,
    .wide-left {
        grid-template-columns: 1fr;
    }

    .feature-card {
        grid-template-columns: 1fr;
    }

    .feature-theory {
        grid-template-columns: 1fr;
        grid-template-rows: 210px 1fr;
    }

    .feature-media {
        margin: 20px 20px 0;
    }

    .feature-theory .feature-media {
        min-height: 190px;
        margin: 20px 20px 0;
    }

    .feature-theory .feature-body {
        padding: 28px 24px 24px;
    }

    .feature-theory .card-icon {
        top: auto;
        left: auto;
    }

    .stats-band {
        padding: 28px;
    }

    .stats-band div {
        padding-left: 0;
        border-left: 0;
    }

    .steps::before {
        display: none;
    }

    .cta-band,
    .admin-heading,
    .panel-heading,
    .admin-list-row {
        align-items: stretch;
        flex-direction: column;
    }

    .cta-band p {
        margin-left: 0;
    }

    .course-meta {
        padding-left: 0;
        border-left: 0;
        border-top: 1px solid var(--line);
        padding-top: 20px;
    }

    .auth-art {
        display: none;
    }

    .admin-sidebar {
        position: static;
        width: auto;
    }

    .admin-main {
        margin-left: 0;
    }
}

@media (max-width: 620px) {
    .site-header {
        min-height: 72px;
        padding: 14px 18px;
    }

    .brand strong {
        font-size: 0.92rem;
    }

    .brand small {
        font-size: 0.62rem;
    }

    .brand-mark {
        width: 40px;
        height: 40px;
    }

    .site-header .brand-logo {
        width: 108px;
        max-width: 36vw;
    }

    .hero {
        min-height: auto;
    }

    .hero h1,
    .page-hero h1,
    .course-detail-hero h1 {
        font-size: 2.25rem;
    }

    .hero-copy p {
        font-size: 1.02rem;
    }

    .btn-large {
        width: 100%;
        min-height: 54px;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .hero-points {
        gap: 14px;
        margin-top: 30px;
    }

    .hero-product {
        min-height: 360px;
    }

    .hero-devices {
        top: 10px;
        width: 116%;
    }

    .laptop-shell {
        min-height: 300px;
        padding: 10px;
    }

    .player-view {
        grid-template-columns: 1fr;
        min-height: 220px;
    }

    .lesson-list {
        display: none;
    }

    .phone-shell {
        display: none;
    }

    .section {
        padding-top: 34px;
        padding-bottom: 34px;
    }

    .review-banner {
        grid-template-columns: 1fr;
        padding: 28px;
    }

    .quote-mark {
        font-size: 3rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-panel {
        padding: 22px;
    }

    .contact-form-panel .btn-primary {
        width: 100%;
    }

    .row-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .row-actions .btn,
    .row-actions form,
    .row-actions button {
        width: 100%;
    }
}

/* Reference layout below hero */
.below-hero {
    max-width: 1120px;
    margin: 0 auto;
    padding: 36px 24px 0;
}

.reference-courses {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.reference-card {
    position: relative;
    min-height: 394px;
    padding: 22px 22px 20px;
    border: 1px solid #dce6f1;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.reference-media {
    position: relative;
    height: 158px;
    overflow: hidden;
    border-radius: 7px;
    background: #f6fbff;
}

.reference-media-theory {
    background:
        linear-gradient(0deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.02)),
        url("../img/card-theory.png") center/cover;
}

.reference-media-driver {
    background:
        linear-gradient(0deg, rgba(5, 16, 30, 0.08), rgba(5, 16, 30, 0.02)),
        url("../img/card-driver.png") center/cover;
}

.reference-media-live {
    background:
        linear-gradient(0deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.03)),
        url("../img/card-zoom.png") center/cover;
}

.reference-icon {
    position: absolute;
    z-index: 2;
    top: 11px;
    left: 22px;
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 5px solid #fff;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--green), #37b993);
    box-shadow: 0 10px 22px rgba(5, 201, 139, 0.18);
}

.reference-card:nth-child(2) .reference-icon {
    background: linear-gradient(145deg, var(--green), #37b993);
}

.reference-card:nth-child(3) .reference-icon {
    background: linear-gradient(145deg, var(--green), #37b993);
}

.reference-icon::before,
.reference-icon::after {
    content: none;
}

.reference-icon svg,
.stat-icon svg,
.step-orb svg,
.reference-trust svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.reference-icon {
    color: #fff;
}

.reference-card h2 {
    margin: 20px 0 9px;
    font-size: 1.18rem;
    line-height: 1.15;
}

.reference-card p {
    min-height: 50px;
    margin: 0;
    color: #526781;
    font-size: 0.82rem;
    line-height: 1.45;
}

.reference-card .check-list {
    gap: 6px;
    margin: 15px 0;
    color: #526781;
    font-size: 0.79rem;
}

.reference-card .check-list li {
    padding-left: 19px;
}

.reference-card .check-list li::before {
    width: 8px;
    height: 5px;
    top: 0.52em;
}

.reference-card .text-link {
    color: #07a775;
    font-size: 0.82rem;
    font-weight: 900;
}

.reference-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin: 30px 0 30px;
    padding: 18px 24px;
    border-radius: 8px;
    background: linear-gradient(90deg, #f8fcff, #f5fbf8);
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.05);
}

.reference-stats div {
    position: relative;
    display: grid;
    grid-template-columns: 38px auto;
    grid-template-rows: auto auto;
    column-gap: 12px;
    align-items: center;
    min-height: 44px;
    padding: 0 20px;
    border-left: 1px solid #e1ebf5;
}

.reference-stats div:first-child {
    border-left: 0;
}

.reference-stats strong {
    color: #069c73;
    font-size: 1.26rem;
    line-height: 1;
}

.reference-stats small {
    color: #526781;
    font-size: 0.72rem;
}

.stat-icon {
    grid-row: 1 / 3;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    color: #08a97a;
}

.reference-how {
    padding: 0 0 26px;
    text-align: center;
}

.reference-how h2 {
    margin: 0 0 4px;
    font-size: 1.32rem;
}

.reference-how > p {
    margin: 0;
    color: #526781;
    font-size: 0.82rem;
}

.reference-steps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 30px;
    margin-top: 28px;
}

.reference-steps::before {
    content: "";
    position: absolute;
    top: 31px;
    left: 11%;
    right: 11%;
    border-top: 2px dashed #cdd9e7;
}

.reference-steps article {
    position: relative;
    z-index: 1;
}

.step-orb {
    display: grid;
    place-items: center;
    width: 62px;
    height: 62px;
    margin: 0 auto 13px;
    border: 1px solid rgba(5, 201, 139, 0.36);
    border-radius: 50%;
    position: relative;
    color: #0aa77a;
    background: #fff;
    box-shadow: 0 0 0 10px #fff;
    font-weight: 900;
}

.step-orb b {
    position: absolute;
    left: 50%;
    bottom: -12px;
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    color: #fff;
    background: #062f3c;
    font-size: 0.76rem;
    transform: translateX(-50%);
}

.reference-steps h3 {
    margin: 20px 0 6px;
    font-size: 0.9rem;
}

.reference-steps p {
    max-width: 160px;
    margin: 0 auto;
    color: #526781;
    font-size: 0.74rem;
    line-height: 1.4;
}

.reference-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin: 8px 0 22px;
}

.quiz-panel,
.instructor-panel {
    min-height: 210px;
    border-radius: 8px;
    overflow: hidden;
}

.quiz-panel {
    padding: 24px;
    color: #fff;
    background: linear-gradient(135deg, #071728, #123858);
}

.quiz-panel > span,
.instructor-panel span {
    display: block;
    color: #09c889;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.quiz-panel h2,
.instructor-panel h2 {
    margin: 4px 0 14px;
    font-size: 1.1rem;
    line-height: 1.18;
}

.quiz-box {
    max-width: 430px;
    margin-bottom: 14px;
    padding: 14px;
    border-radius: 7px;
    color: var(--ink);
    background: #fff;
}

.quiz-box p {
    margin: 0 0 10px;
    font-size: 0.78rem;
    font-weight: 800;
}

.quiz-box label {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 27px;
    margin-top: 7px;
    padding: 0 9px;
    border: 1px solid #dbe6f0;
    border-radius: 5px;
    color: #526781;
    font-size: 0.72rem;
    cursor: pointer;
    transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.quiz-box label:hover {
    border-color: rgba(10, 191, 134, 0.55);
    background: #f4fffb;
}

.quiz-box label.selected {
    border-color: #0abf86;
    color: #057a5c;
    background: #ebfbf5;
}

.quiz-box input[type="radio"] {
    width: auto;
    min-height: 0;
    margin: 0;
    accent-color: #0abf86;
}

.instructor-panel {
    display: grid;
    grid-template-columns: 1fr 210px;
    align-items: stretch;
    padding: 24px 0 24px 24px;
    background: linear-gradient(90deg, #fff 0%, #fff 48%, #f2f7fb 100%);
    border: 1px solid #dce6f1;
}

.instructor-panel p {
    max-width: 285px;
    margin: 0 0 14px;
    color: #526781;
    font-size: 0.82rem;
}

.instructor-avatars {
    display: flex;
    gap: -2px;
    margin-bottom: 15px;
}

.instructor-avatars i {
    width: 30px;
    height: 30px;
    margin-right: -4px;
    border: 2px solid #fff;
    border-radius: 50%;
    background: linear-gradient(145deg, #c7d2fe, #f8fafc);
}

.roof-sign {
    min-height: 100%;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.12) 48%),
        url("../img/instructor-roof-sign.png") center/cover;
}

.reference-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: 92px;
    padding: 24px 34px;
    color: #fff;
    background:
        linear-gradient(90deg, rgba(6, 19, 33, 0.92), rgba(5, 62, 104, 0.88)),
        url("https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?auto=format&fit=crop&w=1200&q=82") center/cover;
}

.reference-cta h2 {
    margin: 0 0 4px;
    font-size: 1.4rem;
}

.reference-cta p {
    margin: 0;
    color: rgba(255, 255, 255, 0.84);
    font-size: 0.86rem;
}

.reference-trust {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    padding: 20px 0 28px;
}

.reference-trust div {
    position: relative;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 12px;
    padding-left: 0;
}

.reference-trust svg {
    grid-row: 1 / 3;
    color: #10233a;
}

.reference-trust strong {
    display: block;
    font-size: 0.84rem;
}

.reference-trust span {
    color: #526781;
    font-size: 0.76rem;
}

@media (max-width: 960px) {
    .reference-courses,
    .reference-stats,
    .reference-steps,
    .reference-panels,
    .reference-trust {
        grid-template-columns: 1fr;
    }

    .reference-stats div {
        border-left: 0;
        border-top: 1px solid #e1ebf5;
        padding: 14px 0;
    }

    .reference-stats div:first-child {
        border-top: 0;
    }

    .reference-steps::before {
        display: none;
    }

    .instructor-panel {
        grid-template-columns: 1fr;
        padding-right: 24px;
    }

    .roof-sign {
        min-height: 180px;
        margin-top: 16px;
    }

    .reference-cta {
        align-items: stretch;
        flex-direction: column;
    }
}

/* Reference proportion pass */
@media (min-width: 961px) {
    .hero {
        min-height: 640px;
    }

    .hero-content {
        min-height: 640px;
        grid-template-columns: minmax(610px, 0.94fr) minmax(520px, 1.06fr);
        gap: 12px;
        padding-top: 96px;
        padding-bottom: 42px;
    }

    .hero h1 {
        margin: 18px 0 14px;
        font-size: 3.55rem;
    }

    .hero h1 span {
        display: inline-block;
        white-space: nowrap;
    }

    .hero-copy p {
        max-width: 560px;
        margin-bottom: 26px;
        font-size: 1.08rem;
        line-height: 1.52;
    }

    .hero-points {
        margin-top: 38px;
        gap: 26px;
    }

    .hero-product {
        min-height: 410px;
    }

    .hero-devices {
        right: -16px;
        top: 24px;
        width: min(780px, 108%);
    }
}

.below-hero {
    max-width: 1320px;
    padding: 34px 18px 0;
}

.reference-courses {
    gap: 26px;
}

.reference-card {
    min-height: 448px;
    padding: 22px 22px 20px;
}

.reference-media {
    height: 190px;
}

.reference-icon {
    top: -18px;
    left: 22px;
    width: 60px;
    height: 60px;
}

.reference-card h2 {
    margin-top: 20px;
    margin-bottom: 8px;
}

.reference-card p {
    min-height: 52px;
}

.reference-card .check-list {
    gap: 7px;
    margin: 16px 0;
}

.reference-stats {
    margin: 34px 0 28px;
    padding: 22px 34px;
}

.reference-stats div {
    grid-template-columns: 54px auto;
    min-height: 54px;
}

.stat-icon {
    width: 42px;
    height: 42px;
}

.stat-icon svg {
    width: 36px;
    height: 36px;
}

.reference-how {
    padding-bottom: 20px;
}

.reference-steps {
    margin-top: 24px;
    gap: 24px;
}

.step-orb {
    width: 58px;
    height: 58px;
    margin-bottom: 12px;
}

.reference-steps::before {
    top: 29px;
}

.reference-steps h3 {
    margin-top: 18px;
}

.reference-panels {
    gap: 24px;
    margin: 0 0 20px;
}

.quiz-panel,
.instructor-panel {
    min-height: 194px;
}

.quiz-panel {
    padding: 22px 24px;
}

.instructor-panel {
    grid-template-columns: minmax(0, 1fr) 260px;
    padding: 22px 0 22px 24px;
}

.quiz-box {
    margin-bottom: 12px;
}

.reference-cta {
    min-height: 78px;
    padding: 20px 36px;
}

.reference-cta h2 {
    font-size: 1.28rem;
}

.reference-trust {
    padding: 18px 0 24px;
}

.site-footer {
    padding-top: 34px;
    padding-bottom: 20px;
}

.footer-grid {
    max-width: 1320px;
    gap: 34px;
}

.footer-grid h3 {
    margin-bottom: 10px;
}

.footer-grid a {
    margin: 6px 0;
}

.footer-grid p {
    margin: 12px 0;
}

.copyright {
    max-width: 1320px;
    margin-top: 24px;
}

@media (max-width: 960px) {
    .below-hero {
        padding-right: 18px;
        padding-left: 18px;
    }

    .reference-card {
        min-height: 0;
    }

    .reference-media {
        height: 190px;
    }
}

/* Learner dashboard and player */
.learner-page {
    background: #f8fbff;
}

.learner-page .section {
    max-width: 1300px;
    padding-top: 28px;
    padding-bottom: 28px;
}

.learner-hero,
.continue-panel {
    max-width: 1300px;
    margin: 0 auto;
}

.learner-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 26px;
    align-items: center;
    padding: 58px clamp(20px, 5vw, 54px) 20px;
}

.learner-hero h1 {
    max-width: 780px;
    margin: 18px 0 14px;
    font-size: 3rem;
    line-height: 1.08;
}

.learner-hero p {
    max-width: 690px;
    color: var(--muted);
    font-size: 1.06rem;
}

.learner-progress-card,
.learner-course-card,
.continue-panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.07);
}

.learner-progress-card {
    display: grid;
    gap: 8px;
    padding: 28px;
}

.learner-progress-card span,
.continue-panel > div > span,
.learner-card-top span,
.lesson-player-heading span,
.lesson-panel-heading span {
    color: var(--green);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.learner-progress-card strong {
    font-size: 3.2rem;
    line-height: 1;
}

.learner-dashboard-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 0;
    padding-bottom: 14px;
}

.learner-dashboard-menu a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 18px;
    border: 1px solid #d9e4f0;
    border-radius: 999px;
    color: #4f6077;
    background: #fff;
    font-weight: 900;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.04);
}

.learner-dashboard-menu a.is-active,
.learner-dashboard-menu a:hover {
    color: var(--green-dark);
    border-color: rgba(5, 201, 139, 0.45);
    background: rgba(5, 201, 139, 0.1);
}

.dashboard-muted-copy {
    color: var(--muted);
    line-height: 1.65;
}

.dashboard-progress {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #e7eef6;
}

.dashboard-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--green), #0b9bd5);
}

.continue-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 26px 30px;
}

.continue-panel .btn {
    flex-shrink: 0;
    min-width: 160px;
    white-space: nowrap;
}

.dashboard-learning-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 410px);
    gap: 42px;
    align-items: start;
    padding-top: 18px;
}

.dashboard-main-stack,
.dashboard-side-stack {
    display: grid;
    gap: 30px;
    min-width: 0;
}

.dashboard-learning-layout .continue-panel {
    max-width: none;
    margin: 0;
}

.learner-page .dashboard-title-row {
    margin: 0;
    padding: 0;
}

.learner-course-grid.dashboard-enrolled-grid {
    grid-template-columns: 1fr;
    gap: 18px;
}

.learner-course-grid.dashboard-enrolled-grid .learner-course-card {
    min-height: 0;
}

.dashboard-course-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    padding: 26px 28px;
}

.dashboard-course-main {
    display: grid;
    gap: 12px;
    min-width: 0;
}

.dashboard-course-main p {
    max-width: 680px;
    margin: 0;
}

.dashboard-course-main .learner-card-top,
.dashboard-course-main .learner-card-meta {
    justify-content: flex-start;
    gap: 28px;
}

.dashboard-course-actions {
    display: grid;
    gap: 10px;
    justify-items: stretch;
    min-width: 170px;
}

.dashboard-course-actions .btn,
.dashboard-course-actions .text-link {
    justify-content: center;
    white-space: nowrap;
}

.dashboard-available-panel,
.dashboard-quiz-panel {
    display: grid;
    gap: 18px;
    align-self: start;
}

.dashboard-mini-course-list {
    display: grid;
    gap: 12px;
}

.dashboard-mini-course {
    display: grid;
    gap: 10px;
    padding: 16px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #f8fbff;
}

.dashboard-mini-course span {
    color: var(--green);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.dashboard-mini-course h3 {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.25;
}

.dashboard-mini-course small {
    color: var(--muted);
}

.dashboard-mini-course strong {
    color: var(--green-dark);
    font-size: 1.1rem;
}

.continue-panel h2,
.learner-course-card h2,
.lesson-player-heading h2,
.lesson-panel-heading h2 {
    margin: 0;
    line-height: 1.15;
}

.continue-panel p,
.learner-course-card p,
.lesson-player-heading p {
    color: var(--muted);
}

.continue-panel p {
    max-width: 680px;
    margin: 8px 0 0;
}

.learner-course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.learner-course-card {
    display: grid;
    gap: 14px;
    align-content: start;
    padding: 24px;
}

.learner-card-top,
.learner-card-meta,
.lesson-panel-heading,
.lesson-player-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.learner-card-top strong {
    color: var(--green);
    font-size: 1.35rem;
}

.learner-card-meta {
    color: var(--muted);
    font-size: 0.86rem;
}

.course-player-hero {
    padding-bottom: 22px;
}

.course-player-grid {
    gap: 26px;
}

.lesson-player-heading {
    margin-top: 18px;
}

.lesson-player-heading h2 {
    margin-top: 5px;
}

.text-lesson-reader,
.lesson-type-panel {
    display: grid;
    gap: 14px;
    align-content: start;
    min-height: 360px;
    padding: clamp(22px, 4vw, 42px);
    border: 1px solid #dbe7f1;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #ffffff, #f8fbff);
}

.text-lesson-reader > span,
.lesson-type-panel > span {
    color: var(--green);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.text-lesson-reader h2,
.lesson-type-panel h2 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(1.75rem, 3vw, 2.55rem);
    line-height: 1.08;
}

.text-lesson-summary,
.lesson-type-panel > p {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
    font-size: 1.02rem;
    line-height: 1.6;
}

.text-lesson-body {
    max-width: 820px;
    margin-top: 10px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    color: #24364b;
    font-size: 1.02rem;
    line-height: 1.75;
}

.text-lesson-body p:first-child {
    margin-top: 0;
}

.live-lesson-panel {
    background:
        linear-gradient(135deg, rgba(5, 201, 139, 0.12), rgba(14, 165, 233, 0.1)),
        #fff;
}

.lesson-player-actions {
    justify-content: flex-start;
    margin-top: 18px;
    flex-wrap: wrap;
}

.lesson-player-actions form {
    margin: 0;
}

.lesson-panel-heading {
    padding-bottom: 8px;
}

.course-quiz-heading {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.course-outline-panel {
    align-content: start;
}

.client-outline-section {
    display: grid;
    gap: 8px;
    padding: 12px 0 14px;
    border-top: 1px solid var(--line);
}

.client-outline-section:first-of-type {
    border-top: 0;
}

.client-outline-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 7px 10px;
    border-radius: 6px;
    background: #f1f5f9;
}

.client-outline-heading strong {
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 900;
    text-transform: uppercase;
}

.client-outline-heading small,
.client-outline-description,
.client-outline-empty {
    color: var(--muted);
    font-size: 0.8rem;
}

.client-outline-description,
.client-outline-empty {
    margin: 0;
    padding: 0 10px;
}

.quiz-outline-row .lesson-number {
    color: #fff;
    background: linear-gradient(135deg, #7c3aed, #0ea5e9);
}

.lesson-panel a.lesson-row {
    align-items: center;
    padding: 14px;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--ink);
    text-decoration: none;
    transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.lesson-panel a.lesson-row:hover,
.lesson-panel a.lesson-row.is-active {
    border-color: rgba(5, 201, 139, 0.32);
    background: #f1fbf7;
}

.lesson-panel a.lesson-row:hover {
    transform: translateY(-1px);
}

.lesson-number {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    color: #087a5b;
    background: #e7fbf4;
    font-weight: 900;
}

.lesson-row.is-complete .lesson-number {
    color: #fff;
    background: var(--green);
}

.lesson-row em {
    margin-left: auto;
    color: var(--green);
    font-size: 0.76rem;
    font-style: normal;
    font-weight: 900;
    text-transform: uppercase;
}

@media (max-width: 960px) {
    .learner-hero,
    .continue-panel,
    .learner-course-grid,
    .dashboard-learning-layout,
    .dashboard-enrolled-grid,
    .dashboard-course-row {
        grid-template-columns: 1fr;
    }

    .continue-panel {
        align-items: stretch;
        flex-direction: column;
    }

    .learner-course-grid {
        display: grid;
    }

    .dashboard-learning-layout {
        gap: 24px;
    }

    .dashboard-course-actions {
        min-width: 0;
    }
}

/* Course Builder v2 */
.builder-module-list,
.builder-lesson-list {
    display: grid;
    gap: 16px;
}

.builder-module-card,
.builder-lesson-card {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.05);
}

.builder-module-card {
    display: grid;
    gap: 14px;
    padding: 18px;
}

.builder-lesson-card {
    overflow: hidden;
}

.builder-lesson-card summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px;
    cursor: pointer;
    list-style: none;
}

.builder-lesson-card summary::-webkit-details-marker {
    display: none;
}

.builder-lesson-card summary strong,
.builder-lesson-card summary small {
    display: block;
}

.builder-lesson-card summary small {
    margin-top: 4px;
    color: var(--muted);
}

.builder-lesson-card[open] summary {
    border-bottom: 1px solid var(--line);
    background: #f8fbff;
}

.builder-lesson-card > form {
    padding: 18px;
}

.builder-lesson-card > form + form {
    padding: 0 18px 18px;
}

.builder-video-fields {
    display: grid;
    gap: 14px;
    padding: 16px;
    border: 1px dashed #c9d7e6;
    border-radius: 10px;
    background: #f8fbff;
}

.builder-video-fields h3 {
    margin: 0;
    font-size: 0.9rem;
}

.checkbox-row {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.checkbox-row label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-weight: 800;
}

.checkbox-row input {
    width: auto;
    min-height: 0;
    accent-color: var(--green);
}

.checkbox-inline {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    width: max-content;
    color: var(--muted);
    font-weight: 800;
}

.checkbox-inline input {
    width: auto;
    min-height: 0;
    accent-color: var(--green);
}

.builder-actions {
    display: flex;
    align-items: end;
    justify-content: flex-end;
    gap: 12px;
}

.hosted-video-frame {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    border-radius: var(--radius);
    background: #0f172a;
}

.lesson-notes {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: #334155;
    background: #f8fbff;
    line-height: 1.6;
}

@media (max-width: 760px) {
    .builder-lesson-card summary,
    .builder-actions,
    .checkbox-row {
        align-items: stretch;
        flex-direction: column;
    }
}

/* Quiz builder and learner quiz */
.builder-question-list {
    display: grid;
    gap: 16px;
}

.builder-question-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.05);
}

.builder-question-card summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px;
    cursor: pointer;
    list-style: none;
}

.builder-question-card summary::-webkit-details-marker {
    display: none;
}

.builder-question-card summary strong,
.builder-question-card summary small {
    display: block;
}

.builder-question-card summary strong {
    max-width: 860px;
}

.builder-question-card summary small {
    margin-top: 4px;
    color: var(--muted);
}

.builder-question-card[open] summary {
    border-bottom: 1px solid var(--line);
    background: #f8fbff;
}

.builder-question-card > form {
    padding: 18px;
}

.builder-question-card > form + form {
    padding: 0 18px 18px;
}

.answer-builder-list {
    display: grid;
    gap: 10px;
    padding: 14px;
    border: 1px dashed #c9d7e6;
    border-radius: 10px;
    background: #f8fbff;
}

.answer-builder-row {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
}

.correct-answer-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 0.84rem;
    white-space: nowrap;
}

.correct-answer-option input {
    width: auto;
    min-height: 0;
    accent-color: var(--green);
}

.quiz-shell {
    max-width: 980px;
}

.quiz-card,
.quiz-score-card {
    display: grid;
    gap: 22px;
    padding: clamp(24px, 5vw, 44px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.07);
}

.quiz-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: var(--green);
    font-size: 0.82rem;
    font-weight: 900;
    text-transform: uppercase;
}

.quiz-card h1,
.quiz-score-card h1 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.08;
}

.quiz-answer-form,
.quiz-answer-list {
    display: grid;
    gap: 14px;
}

.quiz-answer {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.quiz-answer:hover {
    border-color: rgba(5, 201, 139, 0.38);
    background: #f1fbf7;
    transform: translateY(-1px);
}

.quiz-answer input {
    width: auto;
    min-height: 0;
    accent-color: var(--green);
}

.quiz-feedback {
    display: grid;
    gap: 8px;
    padding: 18px;
    border-radius: 10px;
    border: 1px solid #c8d7e6;
    background: #f8fbff;
}

.quiz-feedback strong {
    font-size: 1.1rem;
}

.quiz-feedback p {
    margin: 0;
    color: #334155;
    line-height: 1.6;
}

.quiz-feedback.is-correct {
    border-color: rgba(5, 201, 139, 0.42);
    background: #ecfdf5;
}

.quiz-feedback.is-wrong {
    border-color: rgba(239, 68, 68, 0.3);
    background: #fff7f7;
}

.quiz-score-card {
    text-align: center;
    justify-items: center;
}

.quiz-score-card strong {
    color: var(--green);
    font-size: clamp(4rem, 10vw, 7rem);
    line-height: 0.95;
}

.quiz-score-card p {
    max-width: 560px;
    margin: 0;
    color: var(--muted);
    font-size: 1.06rem;
}

@media (max-width: 760px) {
    .builder-question-card summary,
    .answer-builder-row,
    .quiz-card-top {
        align-items: stretch;
        grid-template-columns: 1fr;
        flex-direction: column;
    }
}

/* Course Builder workspace */
.builder-heading {
    align-items: center;
}

.course-builder-workspace {
    display: grid;
    grid-template-columns: 260px minmax(420px, 1fr) minmax(380px, 460px);
    gap: 18px;
    align-items: start;
}

.builder-palette,
.builder-canvas,
.builder-inspector {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.07);
}

.builder-palette,
.builder-inspector {
    position: sticky;
    top: 18px;
    display: grid;
    gap: 12px;
    padding: 16px;
    max-height: calc(100vh - 36px);
    overflow: auto;
}

.builder-canvas {
    padding: 18px;
}

.builder-panel-title {
    display: grid;
    gap: 4px;
    margin-bottom: 4px;
}

.builder-panel-title span,
.builder-canvas-toolbar span,
.builder-outline-module header span {
    color: var(--green-dark);
    font-size: 0.74rem;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

.builder-panel-title strong,
.builder-canvas-toolbar strong {
    color: var(--ink);
    font-size: 1.05rem;
}

.builder-palette-item,
.builder-course-card,
.builder-outline-item {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    font: inherit;
    text-align: left;
    transition: border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.builder-palette-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 12px;
}

.builder-palette-item:hover,
.builder-palette-item.is-selected,
.builder-course-card:hover,
.builder-course-card.is-selected,
.builder-outline-item:hover,
.builder-outline-item.is-selected {
    border-color: rgba(5, 201, 139, 0.42);
    background: #f1fbf7;
    box-shadow: 0 12px 28px rgba(5, 201, 139, 0.09);
    transform: translateY(-1px);
}

.builder-palette-item strong,
.builder-palette-item small,
.builder-course-card strong,
.builder-course-card small,
.builder-outline-item strong,
.builder-outline-item small {
    display: block;
}

.builder-palette-item small,
.builder-course-card small,
.builder-outline-item small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.78rem;
}

.builder-node-icon {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    color: #fff;
    background: linear-gradient(135deg, var(--green), var(--blue));
    font-size: 0.88rem;
    font-weight: 900;
    flex: 0 0 auto;
}

.builder-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}

.builder-mini-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.builder-mini-stats span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    color: #087a5b;
    background: #e7fbf4;
    font-size: 0.76rem;
    font-weight: 900;
}

.builder-mini-stats .builder-order-status[data-state="saving"] {
    color: #92400e;
    background: #fef3c7;
}

.builder-mini-stats .builder-order-status[data-state="error"] {
    color: #991b1b;
    background: #fee2e2;
}

.builder-dropzone,
.builder-module-drop {
    display: grid;
    place-items: center;
    padding: 18px;
    border: 1px dashed #b8cadb;
    border-radius: 12px;
    color: var(--muted);
    background: #f8fbff;
    text-align: center;
}

.builder-dropzone {
    min-height: 96px;
    margin: 18px 0;
}

.builder-module-drop {
    min-height: 58px;
    padding: 10px 12px;
    background: #fbfdff;
}

.builder-dropzone span,
.builder-module-drop span {
    color: var(--ink);
    font-weight: 900;
}

.builder-dropzone p {
    margin: 4px 0 0;
}

.builder-dropzone.is-dragging,
.builder-module-drop.is-dragging {
    border-color: var(--green);
    background: #ecfdf5;
}

.builder-drop-preview {
    width: 100%;
    margin-top: 8px;
    padding: 9px 10px;
    border-radius: 8px;
    color: #075f49;
    background: rgba(5, 201, 139, 0.12);
    font-size: 0.82rem;
    font-weight: 900;
}

.builder-course-card {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 14px;
    margin-bottom: 16px;
}

.builder-outline-list,
.builder-outline-items {
    display: grid;
    gap: 12px;
}

.builder-outline-module {
    display: grid;
    gap: 14px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
}

.builder-outline-module.muted {
    background: #f8fbff;
}

.builder-outline-module header {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 16px;
}

.builder-outline-module h2 {
    margin: 4px 0;
    font-size: 1.18rem;
}

.builder-outline-module p {
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
}

.builder-outline-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 12px;
}

.builder-outline-item.question .builder-node-icon {
    background: linear-gradient(135deg, #5b6cff, var(--green));
}

.builder-empty-module {
    padding: 12px;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
    color: var(--muted);
    background: #f8fbff;
    font-size: 0.88rem;
}

.builder-inspector-panel {
    display: none;
}

.builder-inspector-panel.is-active {
    display: block;
}

.builder-inspector-panel .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.builder-inspector-panel .btn-primary {
    width: 100%;
}

.builder-delete-form {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
}

.builder-delete-form .btn-danger {
    width: 100%;
}

@media (max-width: 1380px) {
    .course-builder-workspace {
        grid-template-columns: 230px minmax(360px, 1fr) minmax(340px, 410px);
    }
}

@media (max-width: 1180px) {
    .course-builder-workspace {
        grid-template-columns: 1fr;
    }

    .builder-palette,
    .builder-inspector {
        position: static;
        max-height: none;
    }

    .builder-palette {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .builder-panel-title {
        grid-column: 1 / -1;
    }
}

@media (max-width: 760px) {
    .builder-palette,
    .builder-canvas-toolbar,
    .builder-outline-module header,
    .builder-inspector-panel .form-row {
        display: grid;
        grid-template-columns: 1fr;
    }

    .builder-mini-stats {
        justify-content: flex-start;
    }
}

/* Inline accordion course builder */
.legacy-builder {
    display: none;
}

.ld-builder-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    min-height: 52px;
    margin-top: -18px;
    padding: 0 0 12px;
    border-bottom: 1px solid var(--line);
}

.ld-builder-actions a,
.ld-builder-actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 0 14px;
    border: 1px solid #c7d2df;
    border-radius: 2px;
    color: #183150;
    background: #fff;
    font: inherit;
    font-size: 0.84rem;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.ld-builder-actions form {
    margin: 0;
}

.ld-builder-actions form button {
    border-color: #1184c7;
    color: #fff;
    background: #1184c7;
}

.ld-builder-actions .ld-icon-button {
    width: 34px;
    padding: 0;
    font-weight: 900;
}

.flat-builder-shell {
    display: grid;
    grid-template-columns: minmax(620px, 1fr) 300px;
    gap: 0;
    align-items: start;
    border: 0;
    background: #fff;
}

.flat-builder-main {
    min-width: 0;
    padding: 18px 24px 28px;
    border-right: 1px solid var(--line);
}

.flat-builder-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
}

.flat-builder-toolbar span {
    color: #334155;
    font-size: 0.86rem;
}

.ld-outline-tools {
    display: flex;
    align-items: center;
    gap: 14px;
}

.ld-outline-tools button {
    border: 0;
    color: #087a8c;
    background: transparent;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 800;
    cursor: pointer;
}

.ld-outline-tools .builder-order-status {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    color: #087a5b;
    background: #e7fbf4;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.flat-add-panel {
    border: 1px solid var(--line);
    border-radius: 3px;
    background: #fbfdff;
}

.flat-add-panel:not([open]) {
    display: none;
}

.flat-add-panel > summary {
    padding: 12px 14px;
    font-weight: 900;
    cursor: pointer;
}

.flat-outline {
    display: grid;
    gap: 0;
}

.flat-empty {
    padding: 18px;
    border: 1px dashed #b8cadb;
    color: var(--muted);
    background: #f8fbff;
}

.flat-outline-row {
    display: block;
    overflow: hidden;
    margin: 0;
    border: 1px solid var(--line);
    border-bottom-width: 0;
    background: #fff;
}

.flat-outline-row:last-child {
    border-bottom-width: 1px;
}

.flat-outline-row > summary {
    display: grid;
    grid-template-columns: 24px 30px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    min-height: 43px;
    padding: 7px 10px;
    list-style: none;
    cursor: grab;
}

.flat-outline-row > summary::-webkit-details-marker {
    display: none;
}

.flat-outline-row[open] > summary {
    border-bottom: 1px solid var(--line);
}

.flat-outline-row.heading > summary {
    border-top: 1px solid #7e7e7e;
    border-bottom: 1px solid #7e7e7e;
    background: #d8d8d8;
}

.flat-outline-row.heading .flat-row-title strong {
    text-transform: uppercase;
}

.flat-outline-row.lesson > summary,
.flat-outline-row.quiz > summary {
    padding-left: 10px;
    background: #fff;
}

.flat-outline-row.quiz .builder-node-icon {
    background: linear-gradient(135deg, #7c3aed, #0ea5e9);
}

.ld-row-move {
    display: grid;
    place-items: center;
    gap: 0;
    color: #1f2937;
    font-size: 0.7rem;
    font-weight: 900;
    line-height: 0.9;
    text-align: center;
}

.ld-row-move span:nth-child(2) {
    letter-spacing: -2px;
}

.flat-row-title strong,
.flat-row-title small {
    display: block;
}

.flat-row-title small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.76rem;
}

.flat-chevron {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.flat-outline-row.is-sorting {
    opacity: 0.46;
    outline: 2px solid rgba(5, 201, 139, 0.35);
}

.flat-delete-form {
    margin: 0 16px 16px;
    padding-top: 12px;
}

.flat-quiz-questions {
    display: grid;
    gap: 10px;
    padding: 0 16px 16px;
}

.flat-question-add,
.flat-question-row {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 3px;
    background: #fff;
}

.flat-question-add > summary,
.flat-question-row > summary {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    list-style: none;
    cursor: pointer;
    font-weight: 900;
}

.flat-question-add > summary::-webkit-details-marker,
.flat-question-row > summary::-webkit-details-marker {
    display: none;
}

.flat-question-add[open] > summary,
.flat-question-row[open] > summary {
    border-bottom: 1px solid var(--line);
    background: #f8fbff;
}

.flat-question-row small {
    display: block;
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 700;
}

.flat-question-list {
    display: grid;
    gap: 8px;
}

.flat-builder-sidebar {
    position: sticky;
    top: 0;
    display: grid;
    gap: 0;
    padding: 0;
    background: #f8fafc;
    border-left: 1px solid var(--line);
}

.ld-document-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 0 14px;
    border-bottom: 1px solid var(--line);
    background: #fff;
    font-size: 0.9rem;
}

.ld-document-section {
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.ld-document-section > summary {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    padding: 0 14px;
    font-weight: 900;
    cursor: pointer;
    list-style: none;
}

.ld-document-section > summary::-webkit-details-marker {
    display: none;
}

.ld-document-section input[type="search"] {
    width: calc(100% - 28px);
    min-height: 34px;
    margin: 0 14px 10px;
    padding: 0 9px;
    border: 1px solid #aebdca;
    border-radius: 2px;
}

.ld-recent-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px 8px;
    color: var(--muted);
    font-size: 0.78rem;
}

.ld-recent-head a {
    color: #087a8c;
    text-decoration: none;
}

.ld-checkbox-list {
    display: grid;
    gap: 8px;
    padding: 0 14px 12px;
}

.ld-checkbox-list label,
.ld-checkbox-list p {
    display: flex;
    align-items: start;
    gap: 8px;
    margin: 0;
    color: #334155;
    font-size: 0.82rem;
    line-height: 1.25;
}

.ld-checkbox-list input {
    width: auto;
    min-height: 0;
    margin-top: 2px;
}

.ld-sidebar-action {
    width: calc(100% - 28px);
    min-height: 34px;
    margin: 0 14px 14px;
    border: 1px solid #087a8c;
    border-radius: 2px;
    color: #087a8c;
    background: #fff;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 900;
    cursor: pointer;
}

.flat-builder-sidebar .builder-node-icon,
.flat-outline-row .builder-node-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: #58a51c;
    font-size: 0.72rem;
}

@media (max-width: 1100px) {
    .flat-builder-shell {
        grid-template-columns: 1fr;
    }

    .flat-builder-main {
        border-right: 0;
    }

    .flat-builder-sidebar {
        position: static;
        border-top: 1px solid var(--line);
    }
}

/* MasterStudy-inspired curriculum builder */
.ms-admin-heading {
    align-items: end;
}

.ms-course-tabs {
    margin-bottom: 0;
}

.ms-builder-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 58px;
    padding: 0 22px;
    border: 1px solid var(--line);
    border-bottom: 0;
    background: #1d2732;
    color: #fff;
}

.ms-builder-topbar > strong {
    min-width: 0;
    overflow: hidden;
    font-size: 0.98rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-builder-topbar > div {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ms-builder-topbar form {
    margin: 0;
}

.ms-builder {
    display: grid;
    grid-template-columns: 420px minmax(0, 1fr);
    min-height: 760px;
    border: 1px solid var(--line);
    background: #eef3f9;
}

.ms-curriculum {
    position: sticky;
    top: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    align-self: start;
    min-height: 760px;
    max-height: calc(100vh - 20px);
    border-right: 1px solid #d8e1ea;
    background: #e8eef6;
}

.ms-curriculum-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 24px 22px 18px;
}

.ms-curriculum-head h2 {
    margin: 0;
    font-size: 1.65rem;
}

.ms-curriculum-head span,
.ms-section-title {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
}

.ms-outline-list {
    overflow: auto;
    padding: 0 22px 22px;
}

.ms-section-title {
    padding: 10px 2px;
}

.ms-outline-empty {
    display: grid;
    gap: 8px;
    min-height: 150px;
    padding: 28px;
    place-content: center;
    border: 1px dashed #b8c7d8;
    border-radius: 8px;
    color: var(--muted);
    text-align: center;
    background: rgba(255, 255, 255, 0.72);
}

.ms-outline-empty strong {
    color: var(--ink);
    font-size: 1.1rem;
}

.ms-outline-row {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    align-items: stretch;
    gap: 8px;
    border: 1px solid transparent;
    background: #fff;
}

.ms-outline-row + .ms-outline-row {
    border-top-color: #e2e8f0;
}

.ms-outline-row.heading {
    margin-top: 12px;
    border-radius: 8px 8px 0 0;
    background: #fff;
}

.ms-outline-row.item {
    border-radius: 0;
}

.ms-outline-row.is-active {
    border-color: #2f7cff;
    background: #f2f7ff;
}

.ms-outline-row.is-sorting {
    opacity: 0.5;
}

.ms-outline-row a {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    min-height: 54px;
    color: var(--ink);
    text-decoration: none;
}

.ms-outline-row.heading a {
    min-height: 62px;
    font-size: 1.02rem;
}

.ms-outline-row strong,
.ms-outline-row small {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-outline-row small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.78rem;
}

.ms-drag {
    display: grid;
    place-items: center;
    color: #9aa8b7;
    cursor: grab;
    font-weight: 900;
    letter-spacing: -2px;
}

.ms-type-icon {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 2px solid currentColor;
    border-radius: 50%;
    color: #ff9f1c;
}

.ms-type-icon::before {
    font-size: 0.72rem;
    font-weight: 900;
}

.ms-type-icon.play::before { content: ">"; }
.ms-type-icon.doc {
    color: #63c750;
    border-radius: 5px;
}
.ms-type-icon.doc::before { content: "T"; }
.ms-type-icon.live {
    color: #b65cff;
}
.ms-type-icon.live::before { content: "L"; }
.ms-type-icon.quiz::before { content: "?"; }
.ms-type-icon.heading {
    color: #718192;
    border-radius: 8px;
}
.ms-type-icon.heading::before { content: "S"; }

.ms-section-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    padding: 10px;
    border-radius: 0 0 8px 8px;
    background: #fff;
}

.ms-section-actions form {
    margin: 0;
}

.ms-section-actions button,
.ms-new-section button {
    width: 100%;
    min-height: 40px;
    border: 0;
    border-radius: 6px;
    color: #2374ff;
    background: #e9f1ff;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 900;
    cursor: pointer;
}

.ms-new-section {
    display: grid;
    gap: 10px;
    padding: 18px 22px;
    border-top: 1px solid #d8e1ea;
}

.ms-new-section input {
    min-height: 42px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 0 12px;
}

.ms-new-section button {
    min-height: 48px;
    border: 1px solid #2f7cff;
    background: transparent;
}

.ms-editor {
    min-width: 0;
    padding: 34px 38px 52px;
}

.ms-editor-card {
    display: grid;
    gap: 18px;
    max-width: 1240px;
    padding: 0;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.ms-editor-card > header {
    padding: 24px 28px 0;
}

.ms-editor-card > header span {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 900;
    text-transform: uppercase;
}

.ms-editor-card > header h2 {
    margin: 8px 0 0;
    font-size: 1.75rem;
}

.ms-editor-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 28px;
    padding: 12px 0 2px;
    border-top: 1px solid #edf2f7;
}

.ms-editor-actions form {
    margin: 0;
}

.ms-editor-card > form,
.ms-editor-card > details,
.ms-question-list {
    margin: 0 28px;
}

.ms-editor-card > form:last-child,
.ms-editor-card > details:last-child {
    margin-bottom: 28px;
}

.ms-title-row {
    display: grid;
    grid-template-columns: minmax(160px, 220px) minmax(0, 1fr) auto;
    gap: 10px;
    align-items: end;
}

.ms-editor-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 620px;
    overflow: hidden;
    border: 1px solid #d8e1ea;
    border-radius: 6px;
    background: #dce3ee;
}

.ms-editor-tabs span,
.ms-editor-tabs button {
    display: grid;
    place-items: center;
    min-height: 42px;
    border: 0;
    color: #64748b;
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-weight: 900;
}

.ms-editor-tabs span.active,
.ms-editor-tabs button.active {
    margin: 4px;
    border-radius: 4px;
    color: #1d2732;
    background: #fff;
}

.ms-tab-panel {
    display: none;
}

.ms-tab-panel.is-active {
    display: grid;
    gap: 16px;
}

.ms-panel-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 18px;
}

.ms-panel-heading h3 {
    margin: 0 0 6px;
    font-size: 1.2rem;
}

.ms-panel-heading p {
    margin: 0;
    color: var(--muted);
}

.ms-compact-form {
    padding: 16px;
    border: 1px solid #dbe4ef;
    border-radius: 8px;
    background: #f8fbff;
}

.ms-resource-list {
    display: grid;
    gap: 10px;
}

.ms-resource-card {
    overflow: hidden;
    border: 1px solid #d8e1ea;
    border-radius: 8px;
    background: #fff;
}

.ms-resource-card > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    min-height: 52px;
    padding: 0 16px;
    cursor: pointer;
    list-style: none;
}

.ms-resource-card > summary::-webkit-details-marker {
    display: none;
}

.ms-resource-card summary strong,
.ms-resource-card summary small {
    display: block;
}

.ms-resource-card summary small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.78rem;
}

.ms-resource-card form {
    margin: 0 16px 16px;
}

.ms-type-panel,
.ms-video-settings {
    display: grid;
    gap: 12px;
    padding: 16px;
    border: 1px dashed #cbd5e1;
    border-radius: 8px;
    background: #f8fbff;
}

.ms-type-panel h3,
.ms-video-settings h3 {
    margin: 0;
}

.ms-type-panel p {
    margin: -4px 0 4px;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.55;
}

.ms-question-list {
    display: grid;
    gap: 10px;
}

.ms-question-card,
.ms-add-question {
    overflow: hidden;
    border: 1px solid #d8e1ea;
    border-radius: 8px;
    background: #f8fbff;
}

.ms-question-card > summary,
.ms-add-question > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    min-height: 46px;
    padding: 0 16px;
    cursor: pointer;
    font-weight: 900;
    list-style: none;
}

.ms-question-card > summary::-webkit-details-marker,
.ms-add-question > summary::-webkit-details-marker {
    display: none;
}

.ms-question-card > summary small {
    padding: 4px 8px;
    border-radius: 999px;
    color: #64748b;
    background: #e2e8f0;
    font-size: 0.68rem;
    text-transform: uppercase;
}

.ms-question-card form,
.ms-add-question form {
    padding: 16px;
}

@media (max-width: 1180px) {
    .ms-builder {
        grid-template-columns: 1fr;
    }

    .ms-curriculum {
        position: static;
        max-height: none;
        min-height: 0;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .ms-title-row {
        grid-template-columns: 1fr;
    }
}

.builder-tabs {
    display: flex;
    align-items: center;
    gap: 0;
    margin: -8px 0 18px;
    border-bottom: 1px solid var(--line);
}

.builder-tabs a,
.builder-tabs span {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 18px;
    border-bottom: 3px solid transparent;
    color: #31506f;
    font-size: 0.9rem;
    font-weight: 900;
    text-decoration: none;
}

.builder-tabs .is-active {
    border-bottom-color: var(--green);
    color: var(--ink);
}

.inline-course-builder {
    grid-template-columns: minmax(560px, 1fr) 320px;
    gap: 0;
    align-items: start;
}

.inline-course-builder .builder-canvas {
    min-width: 0;
    order: 1;
    border-radius: 0;
    box-shadow: none;
}

.inline-builder-canvas {
    display: grid;
    gap: 10px;
}

.builder-document-panel {
    order: 2;
    border-left: 0;
    border-radius: 0;
    box-shadow: none;
}

.builder-panel-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin: -16px -16px 12px;
    border-bottom: 1px solid var(--line);
}

.builder-panel-tabs button {
    min-height: 42px;
    border: 0;
    border-bottom: 3px solid transparent;
    color: #334155;
    background: #fff;
    font: inherit;
    font-size: 0.86rem;
    font-weight: 900;
    cursor: pointer;
}

.builder-panel-tabs button.is-active {
    border-bottom-color: var(--green);
    color: var(--ink);
}

.builder-search {
    display: grid;
    gap: 7px;
    margin: 4px 0 6px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 900;
}

.builder-search input {
    width: 100%;
    min-height: 36px;
    padding: 0 11px;
    border: 1px solid var(--line);
    border-radius: 3px;
}

.inline-builder-canvas .builder-accordion {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 3px;
    background: #fff;
    box-shadow: none;
}

.inline-builder-canvas .builder-accordion > summary {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    min-height: 46px;
    padding: 8px 12px;
    cursor: pointer;
    list-style: none;
}

.inline-builder-canvas .builder-accordion > summary::-webkit-details-marker {
    display: none;
}

.inline-builder-canvas .builder-accordion > summary strong,
.inline-builder-canvas .builder-accordion > summary small {
    display: block;
}

.inline-builder-canvas .builder-accordion > summary small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.76rem;
}

.inline-builder-canvas .builder-accordion[open] > summary {
    border-bottom: 1px solid var(--line);
    background: #f8fbff;
}

.builder-drag-handle {
    display: grid;
    place-items: center;
    min-width: 52px;
    height: 30px;
    padding: 0 9px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
    background: #fff;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
    cursor: grab;
    user-select: none;
}

.builder-drag-handle:active {
    cursor: grabbing;
}

.inline-builder-canvas .builder-accordion.is-sorting {
    opacity: 0.48;
    outline: 2px solid rgba(5, 201, 139, 0.36);
}

.builder-inline-form,
.builder-module-body {
    padding: 16px;
}

.builder-module-body {
    display: grid;
    gap: 14px;
}

.builder-inline-form .btn-primary {
    width: 100%;
}

.inline-module-list {
    margin-top: 4px;
    gap: 0;
}

.builder-unassigned-section {
    margin-top: 10px;
}

.inline-module {
    display: block;
    padding: 0;
    box-shadow: none;
}

.inline-builder-canvas .builder-outline-module {
    display: block;
    padding: 0;
}

.inline-module > summary {
    background: #d9d9d9;
}

.inline-module[open] > summary {
    background: #d1d5db;
}

.builder-inline-items {
    display: grid;
    gap: 0;
}

.builder-nested-list {
    display: grid;
    gap: 0;
    padding: 0 0 0 34px;
    border-top: 1px solid var(--line);
}

.builder-inline-item {
    border-radius: 0;
    box-shadow: none;
}

.builder-inline-item > summary {
    padding-left: 34px;
}

.builder-inline-item.muted {
    background: #fbfdff;
}

.builder-inline-item.question .builder-node-icon {
    background: linear-gradient(135deg, #5b6cff, var(--green));
}

.builder-inline-item.topic .builder-node-icon {
    background: linear-gradient(135deg, #0ea5e9, var(--green));
}

.builder-inline-item.quiz .builder-node-icon {
    background: linear-gradient(135deg, #7c3aed, #0ea5e9);
    font-size: 0.62rem;
}

.builder-add-panel {
    border-style: dashed;
}

.builder-add-panel[open] {
    border-style: solid;
}

.builder-root-add-panel:not([open]) {
    display: none;
}

.builder-utility-panel {
    background: #fbfdff;
    box-shadow: none;
}

.builder-utility-panel > summary {
    color: #183150;
}

.builder-utility-panel > summary .builder-node-icon {
    opacity: 0.9;
}

.builder-utility-panel:not([open]) > summary {
    border-bottom: 0;
}

.inline-course-builder .builder-module-drop {
    min-height: 46px;
    padding: 9px 12px;
    border-radius: 3px;
}

.inline-course-builder .builder-dropzone {
    min-height: 58px;
    margin: 8px 0;
    padding: 12px;
    border-radius: 3px;
}

.inline-course-builder .builder-dropzone p {
    font-size: 0.86rem;
}

.inline-course-builder .builder-node-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    font-size: 0.72rem;
}

.inline-course-builder .builder-drag-handle {
    min-width: 44px;
    height: 26px;
    border-radius: 3px;
    font-size: 0.66rem;
}

.builder-document-panel .builder-palette-item {
    grid-template-columns: 30px minmax(0, 1fr);
    padding: 10px 0;
    border-width: 0 0 1px;
    border-radius: 0;
    box-shadow: none;
}

.builder-document-panel .builder-palette-item:hover {
    transform: none;
}

.builder-document-panel .builder-panel-title small {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.78rem;
}

@media (max-width: 1180px) {
    .inline-course-builder {
        grid-template-columns: 1fr;
    }
}

/* MasterStudy-style public course page */
.course-public-page {
    background: #f5f8fc;
}

.course-public-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 52px;
    align-items: start;
    max-width: 1320px;
    margin: 0 auto;
    padding: 52px clamp(20px, 5vw, 54px) 18px;
}

.course-public-copy h1 {
    max-width: 860px;
    margin: 18px 0 16px;
    font-size: clamp(2.5rem, 5vw, 4.1rem);
    line-height: 1.04;
}

.course-public-copy p {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
    font-size: 1.13rem;
    line-height: 1.72;
}

.course-public-category {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #4b5d75;
    font-size: 0.9rem;
    font-weight: 800;
}

.course-public-category::after {
    content: "Special";
    padding: 4px 8px;
    border-radius: 4px;
    color: #fff;
    background: #ffad1f;
    font-size: 0.68rem;
    text-transform: uppercase;
}

.course-public-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 28px;
    margin-top: 34px;
}

.course-public-meta span {
    display: grid;
    gap: 2px;
    min-width: 110px;
    color: var(--muted);
}

.course-public-meta strong {
    color: var(--ink);
    font-size: 1.08rem;
}

.course-public-start,
.course-sidebar-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.07);
}

.course-public-start {
    display: grid;
    gap: 24px;
    padding: 28px;
}

.course-public-start .btn {
    width: 100%;
}

.course-detail-list {
    display: grid;
}

.course-detail-list div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 47px;
    border-bottom: 1px solid var(--line);
}

.course-detail-list div:last-child {
    border-bottom: 0;
}

.course-detail-list span {
    color: #5f7188;
}

.course-detail-list strong {
    text-align: right;
}

.course-public-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 52px;
    align-items: start;
}

.course-public-layout.section {
    padding-top: 12px;
}

@media (min-width: 1121px) {
    .course-public-layout.section {
        margin-top: -420px;
        padding-top: 0;
    }

    .course-public-sidebar {
        padding-top: 420px;
    }
}

.course-public-content,
.course-public-sidebar {
    min-width: 0;
}

.course-public-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--line);
}

.course-public-tabs a {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    border-bottom: 3px solid transparent;
    color: #52647a;
    font-weight: 900;
}

.course-public-tabs a.is-active,
.course-public-tabs a:hover {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

.course-preview-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #dbe7f1;
}

.course-preview-card img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.course-content-block {
    margin-top: 28px;
}

.course-content-block h2 {
    margin: 0 0 12px;
    font-size: 1.6rem;
}

.course-content-block p {
    color: #53657d;
    font-size: 1rem;
    line-height: 1.78;
}

.course-learn-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.course-learn-list li {
    position: relative;
    padding-left: 22px;
    color: #33465f;
}

.course-learn-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
}

.course-section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.course-section-heading span {
    color: var(--green);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.course-curriculum-section {
    overflow: hidden;
    margin-top: 10px;
    border: 1px solid #dbe4ef;
    border-radius: var(--radius);
    background: #fff;
}

.course-curriculum-section summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
    padding: 0 18px;
    cursor: pointer;
    font-weight: 900;
    list-style: none;
}

.course-curriculum-section summary::-webkit-details-marker {
    display: none;
}

.course-curriculum-section summary em {
    color: #7a899a;
    font-style: normal;
    font-size: 0.86rem;
}

.course-curriculum-section > p {
    margin: 0;
    padding: 0 18px 14px;
    color: var(--muted);
}

.course-curriculum-item {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    min-height: 54px;
    padding: 0 18px;
    border-top: 1px solid #edf2f7;
    color: var(--ink);
}

.course-curriculum-item:hover {
    background: #f7fbff;
}

.course-curriculum-item strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course-curriculum-item small {
    color: var(--muted);
}

.curriculum-icon {
    display: grid;
    place-items: center;
    width: 25px;
    height: 25px;
    border: 2px solid currentColor;
    border-radius: 50%;
    color: #ff9f1c;
}

.curriculum-icon::before {
    font-size: 0.66rem;
    font-weight: 900;
}

.curriculum-icon.video::before { content: ">"; }
.curriculum-icon.text {
    color: #63c750;
    border-radius: 5px;
}
.curriculum-icon.text::before { content: "T"; }
.curriculum-icon.live {
    color: #b65cff;
}
.curriculum-icon.live::before { content: "L"; }
.curriculum-icon.quiz::before { content: "?"; }

.course-public-sidebar {
    position: sticky;
    top: 112px;
    display: grid;
    gap: 22px;
}

.course-sidebar-card {
    padding: 24px;
}

.course-sidebar-card h2 {
    margin: 0 0 14px;
    font-size: 1.25rem;
}

.course-sidebar-card ul {
    display: grid;
    gap: 12px;
    margin: 0;
    padding-left: 18px;
    color: #53657d;
    line-height: 1.65;
}

.related-course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.related-course-card {
    display: grid;
    gap: 10px;
    color: var(--ink);
}

.related-course-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 6px;
    object-fit: cover;
}

.related-course-card span {
    color: var(--muted);
    font-size: 0.86rem;
}

/* Dedicated learner player */
.learner-player-app {
    min-height: 100vh;
    overflow: hidden;
    color: #0b1d33;
    background: #eef3f9;
}

.learn-topbar {
    position: sticky;
    z-index: 30;
    top: 0;
    display: grid;
    grid-template-columns: 180px minmax(220px, 1fr) auto auto;
    align-items: center;
    min-height: 68px;
    border-bottom: 1px solid #d7e0ea;
    background: #1d2732;
    color: #fff;
}

.learn-back,
.learn-course-title,
.learn-topnav,
.learn-user-tools {
    height: 68px;
}

.learn-back {
    display: flex;
    align-items: center;
    padding: 0 22px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.72);
    font-weight: 800;
}

.learn-course-title {
    display: grid;
    align-content: center;
    padding: 0 24px;
    min-width: 0;
}

.learn-course-title span {
    color: #a8b5c4;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.learn-course-title strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-topnav {
    display: flex;
    align-items: stretch;
}

.learn-topnav a {
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 3px solid transparent;
    color: rgba(255, 255, 255, 0.72);
    font-weight: 900;
}

.learn-topnav a.is-active {
    color: #fff;
    border-bottom-color: #2f7cff;
    background: rgba(255, 255, 255, 0.08);
}

.learn-user-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 22px;
}

.learn-user-tools span {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    font-weight: 800;
}

.learn-shell {
    display: grid;
    grid-template-columns: 420px minmax(0, 1fr);
    height: calc(100vh - 68px);
    min-height: calc(100vh - 68px);
    overflow: hidden;
}

.learn-sidebar {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    min-height: 0;
    height: calc(100vh - 68px);
    overflow: hidden;
    border-right: 1px solid #d7e0ea;
    background: #e7edf5;
}

.learn-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 26px 22px 18px;
}

.learn-sidebar-head h1 {
    margin: 0;
    font-size: 1.75rem;
}

.learn-sidebar-head button {
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: 8px;
    color: #2f4053;
    background: #d7e0ea;
    font-weight: 900;
}

.learn-progress-card {
    display: grid;
    gap: 10px;
    margin: 0 22px 18px;
    padding: 16px;
    border-radius: 8px;
    background: #fff;
}

.learn-progress-card span {
    color: var(--green-dark);
    font-weight: 900;
}

.learn-progress-card small {
    color: var(--muted);
}

.learn-outline {
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    padding: 0 22px 88px;
}

.course-filter-bar,
.dashboard-split,
.section-title-row {
    display: grid;
    gap: 18px;
}

.course-filter-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto auto;
    align-items: end;
    padding: 22px;
    border: 1px solid #d9e4f0;
    border-radius: 8px;
    background: #fff;
}

.contact-hero {
    padding-bottom: 24px;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 24px;
    align-items: start;
    padding-top: 0;
}

.contact-panel {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(11, 37, 64, 0.08);
}

.contact-panel h2 {
    margin: 8px 0 10px;
    font-size: 1.8rem;
    line-height: 1.15;
}

.contact-form-panel textarea {
    min-height: 190px;
}

.contact-form-panel .btn-primary {
    width: fit-content;
    min-width: 180px;
}

.contact-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.contact-methods {
    display: grid;
    margin-top: 22px;
    border-top: 1px solid var(--line);
}

.contact-method {
    display: grid;
    gap: 5px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}

.contact-method span {
    color: var(--muted);
    font-weight: 800;
    font-size: 0.82rem;
    text-transform: uppercase;
}

.contact-method a {
    color: var(--ink);
    font-weight: 900;
}

.contact-method address {
    color: var(--ink);
    font-style: normal;
    font-weight: 800;
    line-height: 1.65;
}

.contact-method a:hover {
    color: var(--green-dark);
}

.section-title-row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    margin-bottom: -20px;
}

.section-title-row h2 {
    margin: 4px 0 0;
    font-size: 1.8rem;
}

.learner-course-grid.compact .learner-course-card {
    min-height: auto;
}

.dashboard-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dashboard-support-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

.dashboard-panel {
    padding: 26px;
    border: 1px solid #d9e4f0;
    border-radius: 8px;
    background: #fff;
}

.support-request-panel .btn-primary {
    justify-self: start;
    min-width: 180px;
}

.support-hub-panel {
    display: grid;
    gap: 18px;
}

.support-create-ticket {
    overflow: hidden;
    border: 1px solid #d9e4f0;
    border-radius: 8px;
    background: #f8fbff;
}

.support-create-ticket summary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    margin: 16px;
    padding: 0 22px;
    border-radius: 6px;
    background: var(--green);
    color: #fff;
    cursor: pointer;
    font-weight: 900;
    list-style: none;
    box-shadow: 0 14px 34px rgba(18, 197, 141, 0.22);
}

.support-create-ticket summary::-webkit-details-marker,
.support-ticket-row summary::-webkit-details-marker {
    display: none;
}

.support-create-ticket summary::after {
    content: "+";
    margin-left: 10px;
    font-weight: 900;
}

.support-create-ticket[open] summary::after {
    content: "-";
}

.support-create-ticket form {
    max-width: 760px;
    padding: 0 16px 18px;
}

.support-create-ticket .btn-primary {
    justify-self: start;
    min-width: 180px;
}

.support-ticket-list {
    display: grid;
    gap: 12px;
}

.support-ticket-row {
    overflow: hidden;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #f8fbff;
}

.support-ticket-row.empty {
    display: grid;
    gap: 6px;
    padding: 16px;
    color: var(--muted);
}

.support-ticket-row summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 74px;
    padding: 16px 18px;
    cursor: pointer;
    list-style: none;
}

.support-ticket-row[open] summary {
    border-bottom: 1px solid #e1e9f3;
    background: #fff;
}

.support-ticket-summary-main,
.support-ticket-summary-side {
    display: grid;
    gap: 5px;
}

.support-ticket-summary-side {
    justify-items: end;
    text-align: right;
}

.support-ticket-row small,
.support-ticket-row em {
    color: var(--muted);
}

.support-ticket-row p {
    margin: 0;
    color: #40516a;
    line-height: 1.6;
}

.support-ticket-thread {
    display: grid;
    gap: 12px;
    padding: 16px 18px 18px;
}

.support-ticket-message {
    display: grid;
    gap: 7px;
    padding: 14px;
    border: 1px solid #e1e9f3;
    border-left: 4px solid #94a3b8;
    border-radius: 8px;
    background: #fff;
}

.support-ticket-message.admin {
    border-left-color: var(--green);
    background: #f8fffc;
}

.support-ticket-message span {
    color: var(--green-dark);
    font-size: 0.8rem;
    font-weight: 900;
    text-transform: uppercase;
}

.dashboard-record-row {
    display: grid;
    gap: 4px;
    padding: 14px 0;
    border-top: 1px solid #edf2f7;
}

.dashboard-record-row:first-of-type {
    border-top: 0;
}

.dashboard-record-row span {
    color: var(--muted);
}

.payment-history-list {
    display: grid;
    gap: 0;
}

.payment-history-row {
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 18px;
}

.payment-history-row > strong {
    justify-self: end;
}

.checkout-promo {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
    color: #617088;
    font-weight: 900;
}

.checkout-promo input {
    min-height: 46px;
}

.course-checkout-form {
    display: grid;
    gap: 14px;
}

.checkout-plan-options {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    border: 0;
}

.checkout-plan-options legend {
    margin-bottom: 2px;
    color: var(--ink);
    font-weight: 900;
}

.checkout-plan-option {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 12px;
    border: 1px solid #d9e4f0;
    border-radius: 8px;
    background: #f8fbff;
    cursor: pointer;
}

.checkout-plan-option:has(input:checked) {
    border-color: rgba(5, 201, 139, 0.55);
    background: rgba(5, 201, 139, 0.08);
}

.checkout-plan-option input {
    margin-top: 5px;
}

.checkout-plan-option span {
    display: grid;
    gap: 3px;
}

.checkout-plan-option small {
    color: var(--muted);
    line-height: 1.4;
}

.checkout-auth-actions {
    display: grid;
    gap: 12px;
}

.checkout-auth-actions .text-link {
    justify-self: center;
}

.auth-action-note a {
    color: var(--green-dark);
    font-weight: 900;
}

.auth-action-note a:hover {
    color: var(--green);
}

.course-support-note {
    margin: 18px 0 0;
    color: #68778b;
    line-height: 1.6;
}

.certificate-card {
    display: grid;
    justify-items: center;
    gap: 16px;
    min-height: 520px;
    padding: clamp(42px, 8vw, 90px);
    border: 8px solid #d9e4f0;
    border-radius: 8px;
    background: #fff;
    text-align: center;
}

.certificate-card h1 {
    margin: 0;
    font-size: clamp(2.8rem, 7vw, 5rem);
}

.certificate-card h2 {
    margin: 0;
    color: var(--green-dark);
    font-size: clamp(1.8rem, 4vw, 3rem);
}

.inline-admin-form,
.table-edit-form {
    display: grid;
    gap: 8px;
}

.inline-admin-form input,
.inline-admin-form select,
.table-edit-form input,
.table-edit-form select {
    min-height: 38px;
    padding: 8px 10px;
    font-size: 0.9rem;
}

.compact-form {
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px solid #dbe4ef;
}

.compact-heading {
    align-items: end;
}

.icon-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.icon-add-btn span {
    display: inline-grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 999px;
    color: var(--green);
    background: #fff;
    font-size: 1.1rem;
    line-height: 1;
}

.customer-index-panel .panel-heading {
    align-items: end;
}

.customer-search-form {
    display: flex;
    align-items: end;
    flex-wrap: wrap;
    gap: 12px;
}

.customer-search-form label {
    min-width: min(360px, 100%);
}

.customer-list {
    display: grid;
    gap: 8px;
}

.customer-row {
    display: grid;
    grid-template-columns: 48px minmax(220px, 1fr) 170px 110px 110px auto;
    align-items: center;
    gap: 16px;
    min-height: 78px;
    padding: 14px 16px;
    border: 1px solid #dbe4ef;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
}

.customer-row:hover {
    border-color: #9dc1e6;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.customer-row.empty {
    grid-template-columns: 1fr;
}

.customer-avatar {
    display: inline-grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, var(--green), #2f7cff);
    font-weight: 900;
}

.customer-main,
.customer-meta,
.customer-mini-row {
    display: grid;
    gap: 4px;
}

.customer-main strong,
.customer-mini-row strong {
    color: var(--ink);
    font-weight: 900;
}

.customer-main span,
.customer-meta span,
.customer-mini-row span {
    color: var(--muted);
}

.customer-meta strong {
    font-size: 1.1rem;
}

.customer-editor-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
    gap: 24px;
    margin-bottom: 24px;
}

.customer-tools-panel {
    align-self: start;
}

.customer-mini-list {
    display: grid;
    gap: 10px;
}

.customer-mini-row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 14px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #f8fbff;
}

@media (max-width: 980px) {
    .course-filter-bar,
    .dashboard-split,
    .dashboard-support-grid,
    .section-title-row,
    .payment-history-row,
    .contact-grid,
    .customer-editor-layout {
        grid-template-columns: 1fr;
    }

    .payment-history-row > strong {
        justify-self: start;
    }

    .customer-row {
        grid-template-columns: 44px minmax(0, 1fr);
    }

    .customer-row .customer-meta,
    .customer-row .btn {
        grid-column: 2;
    }
}

.learn-outline::-webkit-scrollbar {
    width: 10px;
}

.learn-outline::-webkit-scrollbar-track {
    background: #dce5ef;
}

.learn-outline::-webkit-scrollbar-thumb {
    border: 2px solid #dce5ef;
    border-radius: 999px;
    background: #9baec2;
}

.learn-section {
    overflow: hidden;
    margin-bottom: 12px;
    border-radius: 8px;
    background: #fff;
}

.learn-section summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 64px;
    padding: 0 18px;
    cursor: pointer;
    list-style: none;
    font-size: 1.05rem;
    font-weight: 900;
}

.learn-section summary::-webkit-details-marker {
    display: none;
}

.learn-section summary em {
    color: #7f8ea0;
    font-style: normal;
}

.learn-outline-item {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) 12px;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 2px;
    align-items: center;
    min-height: 58px;
    padding: 0 18px;
    border-top: 1px solid #e4ebf3;
    color: #132942;
}

.learn-outline-item::after {
    content: "";
    grid-column: 3;
    grid-row: 1 / span 2;
    justify-self: center;
    align-self: center;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #c8d4e3;
}

.learn-outline-item.is-active {
    border-left: 4px solid #7d6bff;
    background: #eef0ff;
}

.learn-outline-item.is-complete::after {
    background: #7d6bff;
}

.learn-outline-item strong,
.learn-outline-item small {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-outline-item .curriculum-icon {
    grid-column: 1;
    grid-row: 1 / span 2;
}

.learn-outline-item strong {
    grid-column: 2;
    grid-row: 1;
}

.learn-outline-item small {
    grid-column: 2;
    grid-row: 2;
    color: #7a899a;
    font-size: 0.82rem;
}

.learn-content {
    min-width: 0;
    overflow: auto;
    max-height: calc(100vh - 68px);
    padding: 52px clamp(28px, 6vw, 94px) 116px;
    background: #fff;
}

.learn-lesson-card {
    max-width: 980px;
}

.learn-lesson-heading {
    margin-bottom: 28px;
}

.learn-lesson-heading span {
    display: block;
    margin-bottom: 10px;
    color: #7a899a;
    font-weight: 900;
}

.learn-lesson-heading h1 {
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    line-height: 1.06;
}

.learn-lesson-heading p {
    max-width: 860px;
    margin: 18px 0 0;
    color: #63748a;
    font-size: 1.16rem;
    line-height: 1.75;
}

.learn-lesson-meta {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
    margin-top: 20px;
    padding: 7px 10px;
    border: 1px solid #e0e8f2;
    border-radius: 10px;
    background: #fbfdff;
}

.learn-lesson-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: auto;
    padding: 4px 14px;
    border: 0;
    border-radius: 0;
    color: #48586d;
    background: transparent;
    font-size: 0.92rem;
    font-weight: 800;
    text-transform: none;
}

.learn-lesson-meta span:first-child {
    padding-left: 6px;
}

.learn-lesson-meta span:last-child {
    padding-right: 6px;
}

.learn-lesson-meta span + span {
    border-left: 1px solid #e0e8f2;
}

.learn-lesson-meta strong {
    color: #78889c;
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: none;
}

.learn-video-frame {
    overflow: hidden;
    border-radius: 8px;
    background: #111827;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.14);
}

.learn-video-frame iframe,
.learn-video-frame video,
.learn-video-frame .video-placeholder {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
}

.learn-video-frame .video-placeholder {
    position: relative;
}

.learn-video-frame .learn-video-empty {
    display: grid;
    gap: 10px;
    place-content: center;
    padding: 32px;
    color: #fff;
    text-align: center;
}

.learn-video-empty .play-button {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    margin: 0 auto 8px;
}

.learn-video-empty strong,
.learn-video-empty small {
    display: block;
}

.learn-video-empty small {
    max-width: 420px;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.5;
}

.learn-text-reader {
    max-width: 900px;
    color: #52647a;
    font-size: 1.14rem;
    line-height: 1.9;
}

.learn-text-reader p:first-child {
    margin-top: 0;
}

.learn-live-panel,
.learn-lesson-notes {
    max-width: 900px;
    margin-top: 28px;
    padding: 28px;
    border: 1px solid #dbe4ef;
    border-radius: 8px;
    background: #f8fbff;
}

.learn-live-panel h2,
.learn-lesson-notes h2 {
    margin: 0 0 10px;
}

.learn-live-panel p,
.learn-lesson-notes p {
    margin: 0;
    color: #53657d;
    line-height: 1.75;
}

.learn-resource-panel {
    display: grid;
    gap: 14px;
    max-width: 900px;
    margin-top: 28px;
}

.learn-resource-panel h2 {
    margin: 0;
}

.learn-resource-list,
.learn-qna-list {
    display: grid;
    gap: 10px;
}

.learn-resource-item {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 16px;
    border: 1px solid #dbe4ef;
    border-radius: 8px;
    background: #f8fbff;
}

.learn-resource-item > span {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(135deg, var(--green), var(--blue));
    font-weight: 900;
}

.learn-resource-item strong {
    display: block;
}

.learn-resource-item p {
    margin: 4px 0 0;
    color: var(--muted);
    line-height: 1.55;
}

.learn-qna-list details {
    overflow: hidden;
    border: 1px solid #dbe4ef;
    border-radius: 8px;
    background: #f8fbff;
}

.learn-qna-list summary {
    padding: 16px;
    cursor: pointer;
    font-weight: 900;
}

.learn-qna-list p {
    margin: 0;
    padding: 0 16px 16px;
    color: #53657d;
    line-height: 1.75;
}

.learn-bottom-bar {
    position: fixed;
    z-index: 35;
    left: 420px;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: 70px;
    padding: 0 clamp(28px, 6vw, 94px);
    border-top: 1px solid #d7e0ea;
    background: #fff;
}

.learn-bottom-bar form {
    margin: 0;
}

.learn-bottom-bar a,
.learn-next-link {
    color: #52647a;
    font-weight: 900;
}

.learn-next-link {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 6px;
    color: #fff;
    background: #2f7cff;
}

.learn-bottom-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.learn-empty {
    display: grid;
    place-content: center;
    min-height: calc(100vh - 68px);
    padding: 40px;
    text-align: center;
}

@media (max-width: 1120px) {
    .course-public-hero,
    .course-public-layout {
        grid-template-columns: 1fr;
    }

    .course-public-sidebar {
        position: static;
    }

    .learn-topbar {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 12px;
    }

    .learn-back,
    .learn-course-title,
    .learn-topnav,
    .learn-user-tools {
        height: auto;
    }

    .learn-shell {
        grid-template-columns: 1fr;
        height: auto;
        overflow: visible;
    }

    .learn-sidebar {
        height: auto;
        min-height: 0;
        overflow: visible;
        border-right: 0;
    }

    .learn-outline {
        max-height: 55vh;
    }

    .learn-content {
        max-height: none;
        overflow: visible;
    }

    .learn-bottom-bar {
        left: 0;
    }
}

@media (max-width: 720px) {
    .course-public-meta,
    .course-public-tabs,
    .learn-bottom-bar,
    .learn-bottom-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .course-learn-list,
    .related-course-grid {
        grid-template-columns: 1fr;
    }

    .course-curriculum-item {
        grid-template-columns: 30px minmax(0, 1fr);
    }

    .course-curriculum-item small {
        grid-column: 2;
    }

    .learn-content {
        padding: 34px 20px 140px;
    }

    .learn-bottom-bar {
        padding: 14px 20px;
    }
}

/* Commerce, dashboard, and admin refinements */
.learner-page .section {
    max-width: 1220px;
}

.learner-hero {
    max-width: 1220px;
    padding-top: 44px;
    padding-bottom: 26px;
}

.learner-dashboard-menu {
    max-width: 1220px;
    padding-top: 0;
    padding-bottom: 24px;
}

.dashboard-learning-layout {
    max-width: 1220px;
    grid-template-columns: minmax(0, 760px) minmax(320px, 380px);
    gap: 44px;
}

.dashboard-main-stack {
    gap: 26px;
}

.dashboard-side-stack {
    gap: 28px;
}

.dashboard-course-row {
    min-height: 178px;
    padding: 28px 32px;
}

.dashboard-course-main p {
    max-width: 620px;
    line-height: 1.65;
}

.dashboard-course-actions .btn {
    min-width: 170px;
}

.dashboard-mini-course {
    padding: 18px;
}

.subscription-dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 28px;
    align-items: start;
}

.subscription-status-panel,
.subscription-help-panel,
.payment-history-panel {
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
}

.subscription-card-list {
    display: grid;
    gap: 12px;
}

.subscription-card-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px auto;
    gap: 18px;
    align-items: center;
    padding: 16px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #f8fbff;
}

.subscription-card-row.empty {
    grid-template-columns: 1fr;
    color: var(--muted);
}

.subscription-card-row div {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.subscription-card-row small,
.subscription-card-row span {
    color: var(--muted);
}

.subscription-help-panel {
    display: grid;
    gap: 14px;
}

.payment-history-row {
    min-height: 64px;
}

.course-value-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.course-value-grid article {
    display: grid;
    gap: 8px;
    padding: 20px;
    border: 1px solid #dbe7f1;
    border-radius: 8px;
    background: #fff;
}

.course-value-grid span {
    color: var(--green);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.course-value-grid h3,
.course-value-grid p {
    margin: 0;
}

.course-value-grid p {
    color: var(--muted);
    line-height: 1.65;
}

.course-support-note a {
    color: var(--green-dark);
    font-weight: 900;
}

.contact-message-list {
    display: grid;
    gap: 12px;
}

.contact-message-row {
    overflow: hidden;
    border: 1px solid #d9e4f0;
    border-radius: 8px;
    background: #f8fbff;
}

.contact-message-row summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 74px;
    padding: 16px 18px;
    cursor: pointer;
    list-style: none;
}

.contact-message-row summary::-webkit-details-marker {
    display: none;
}

.contact-message-row[open] summary {
    border-bottom: 1px solid #e1e9f3;
    background: #fff;
}

.contact-message-row summary span:first-child {
    display: grid;
    gap: 5px;
    min-width: 0;
}

.contact-message-row small {
    color: var(--muted);
}

.contact-message-body {
    display: grid;
    gap: 16px;
    padding: 18px;
}

.contact-message-body dl {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
}

.contact-message-body dt {
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.contact-message-body dd {
    margin: 3px 0 0;
    font-weight: 800;
}

.contact-message-body p {
    margin: 0;
    padding: 16px;
    border: 1px solid #e1e9f3;
    border-radius: 8px;
    background: #fff;
    color: #40516a;
    line-height: 1.65;
}

.status-pill.new {
    background: #dcfce7;
    color: #047857;
}

.status-pill.read {
    background: #e0f2fe;
    color: #075985;
}

.status-pill.archived {
    background: #f1f5f9;
    color: #475569;
}

.customer-subscription-extension {
    grid-column: 1 / -1;
    grid-template-columns: 90px minmax(0, 1fr) auto;
    align-items: center;
}

@media (min-width: 1121px) {
    .course-public-layout.section {
        margin-top: -500px;
    }

    .course-public-sidebar {
        padding-top: 500px;
    }
}

@media (max-width: 1120px) {
    .dashboard-learning-layout,
    .subscription-dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-course-row,
    .subscription-card-row {
        grid-template-columns: 1fr;
    }

    .dashboard-course-actions {
        justify-items: start;
    }

    .course-value-grid,
    .contact-message-body dl {
        grid-template-columns: 1fr;
    }

    .customer-subscription-extension {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .learner-hero {
        padding-top: 30px;
    }

    .learner-hero h1 {
        font-size: 2.35rem;
    }

    .dashboard-course-row {
        padding: 22px;
    }

    .contact-message-row summary {
        align-items: flex-start;
        flex-direction: column;
    }
}