:root {
    --bg: #f6f8fb;
    --surface: #ffffff;
    --surface-2: #eef4f7;
    --ink: #101828;
    --muted: #667085;
    --line: #d9e2e8;
    --primary: #0f766e;
    --primary-2: #115e59;
    --accent: #4f46e5;
    --success: #16a34a;
    --warning: #d97706;
    --shadow: 0 18px 50px rgba(16, 24, 40, .08);
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.app-shell {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: Inter, Arial, sans-serif;
    letter-spacing: 0;
}

a {
    color: inherit;
}

.topbar {
    height: 72px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, .92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.nav-actions,
.hero-actions,
.library-actions {
    display: flex;
    align-items: center;
}

.brand {
    gap: 12px;
    text-decoration: none;
    font-weight: 800;
}

.brand img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: 6px;
}

.nav-links {
    justify-content: center;
    gap: 22px;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 650;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-actions,
.hero-actions,
.library-actions {
    gap: 10px;
    flex-wrap: wrap;
}

.btn,
.market-btn {
    min-height: 40px;
    padding: 0 15px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font: inherit;
    font-size: 14px;
    font-weight: 750;
    cursor: pointer;
}

.btn.primary,
.market-btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.btn.primary:hover,
.market-btn.primary:hover {
    background: var(--primary-2);
}

.btn.secondary,
.market-btn.secondary,
.market-btn.dark,
.market-btn.ghost-dark {
    background: #eef7f6;
    border-color: #c8e4e0;
    color: var(--primary-2);
}

.btn.ghost,
.market-btn.ghost {
    background: transparent;
}

.btn.full {
    width: 100%;
}

.btn.disabled,
.btn:disabled,
.market-btn.disabled,
.market-btn:disabled {
    opacity: .5;
    cursor: not-allowed;
    pointer-events: none;
}

.eyebrow {
    color: var(--primary);
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.hero {
    max-width: 1240px;
    margin: 0 auto;
    padding: 76px 28px 56px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 34px;
    align-items: center;
}

.hero h1,
.page-hero h1,
.detail-copy h1,
.journey-hero h1,
.session-hero h1 {
    margin: 0;
    color: var(--ink);
    font-size: clamp(38px, 6vw, 72px);
    line-height: 1.02;
    letter-spacing: 0;
}

.hero p,
.page-hero p,
.detail-copy p,
.panel p,
.course-body p,
.session-row p,
.journey-hero p,
.session-hero p {
    color: var(--muted);
    line-height: 1.65;
}

.hero p {
    max-width: 720px;
    font-size: 18px;
    margin: 18px 0 0;
}

.searchbar {
    max-width: 740px;
    margin: 26px 0 18px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    align-items: center;
    padding: 8px 8px 8px 14px;
    min-height: 58px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.searchbar.wide {
    max-width: 980px;
    grid-template-columns: auto 1fr 170px auto;
}

.searchbar input,
.searchbar select {
    min-height: 40px;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
    font: inherit;
}

.searchbar select {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0 10px;
    background: var(--surface-2);
}

.searchbar button {
    min-height: 42px;
    border: 0;
    border-radius: 6px;
    background: var(--primary);
    color: white;
    padding: 0 18px;
    font-weight: 800;
}

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

.level-card,
.master-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 18px;
    box-shadow: 0 12px 32px rgba(16, 24, 40, .06);
}

.level-card {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
}

.level-card span {
    color: var(--muted);
    font-weight: 750;
}

.level-card strong {
    color: var(--primary);
    font-size: 24px;
}

.level-card small {
    grid-column: 1 / -1;
    color: var(--muted);
    margin-top: 5px;
}

.level-card.active {
    border-color: #99d6cd;
    background: #effbf9;
}

.master-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #eef2ff;
    border-color: #c7d2fe;
}

.master-card i {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--accent);
    color: white;
}

.master-card small {
    display: block;
    color: var(--muted);
    margin-top: 4px;
}

.section,
.cinema-band,
.pathways,
.pricing,
.outcomes {
    max-width: 1240px;
    margin: 0 auto;
    padding: 54px 28px;
}

.section.slim {
    padding-top: 12px;
    padding-bottom: 18px;
}

.compact-section {
    padding-top: 24px;
}

.section-head,
.band-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.section-head h2,
.band-head h2,
.panel h2,
.admin-head h1 {
    margin: 0;
    font-size: clamp(26px, 3.5vw, 46px);
    line-height: 1.08;
    letter-spacing: 0;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px;
}

.expertise-card {
    min-height: 140px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 10px 28px rgba(16, 24, 40, .05);
}

.expertise-card:hover {
    border-color: #9bd8cf;
    transform: translateY(-2px);
}

.expertise-card i {
    color: var(--primary);
    font-size: 22px;
}

.expertise-card strong {
    font-size: 18px;
}

.expertise-card span {
    color: var(--muted);
    font-size: 14px;
}

.expertise-strip {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 8px;
}

.expertise-strip a {
    flex: 0 0 auto;
    padding: 10px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.expertise-strip a.active,
.expertise-strip a:hover {
    color: var(--primary-2);
    border-color: #b7ddd7;
    background: #eef9f7;
}

.cert-path {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.cert-path article,
.panel,
.empty-state,
.auth-public-card,
.dark-box {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 22px;
    box-shadow: 0 10px 30px rgba(16, 24, 40, .05);
}

.cert-path article span {
    color: var(--primary);
    font-weight: 900;
}

.cert-path article h3 {
    margin: 14px 0 8px;
}

.cert-path article p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.form-error {
    color: #b42318;
    font-weight: 700;
}

.band-head.compact {
    align-items: center;
    margin-bottom: 18px;
}

.status-pill {
    border-radius: 999px;
    padding: 6px 10px;
    font-size: .82rem;
    font-weight: 800;
}

.status-pill.ok {
    background: #dcfce7;
    color: #166534;
}

.status-pill.bad {
    background: #fee2e2;
    color: #991b1b;
}

.admin-inline-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-inline-actions form {
    margin: 0;
}

.sync-result {
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    background: #f0fdf4;
    color: #166534;
    font-weight: 700;
    padding: 10px 12px;
}

.upload-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.upload-panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    padding: 14px;
}

.upload-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.upload-panel-head span {
    color: var(--muted);
    font-size: .85rem;
}

.material-file-input {
    width: 100%;
    border: 1px dashed #b7c6d6;
    border-radius: 8px;
    padding: 10px;
    background: #f8fafc;
}

.upload-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.upload-queue {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
    display: grid;
    gap: 8px;
}

.upload-queue li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4px 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px;
}

.upload-queue li span {
    overflow-wrap: anywhere;
    font-weight: 700;
}

.upload-queue li small {
    color: var(--muted);
}

.upload-queue li b {
    grid-column: 1 / -1;
    color: #475569;
    font-size: .85rem;
}

.upload-queue li.done b {
    color: #15803d;
}

.upload-queue li.failed b {
    color: #b42318;
}

.session-objective-form {
    display: grid;
    gap: 14px;
}

.bulk-import-panel {
    display: grid;
    gap: 14px;
}

.bulk-import-status {
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
    color: var(--muted);
    font-weight: 700;
}

.objective-row {
    display: grid;
    grid-template-columns: 72px minmax(180px, 260px) minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
}

.objective-row > strong {
    min-height: 42px;
    display: grid;
    place-items: center;
    border-radius: 7px;
    background: var(--primary);
    color: #fff;
}

.objective-row textarea {
    min-height: 70px;
    padding-top: 10px;
    resize: vertical;
}

.external-link-form {
    max-width: 720px;
}

.saved-group {
    border-top: 1px solid var(--line);
    padding-top: 16px;
    margin-top: 16px;
}

.saved-group h3 {
    margin: 0 0 10px;
}

.material-row {
    align-items: start;
}

.material-row small {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.muted-line {
    color: var(--muted);
    margin: 0;
}

.cert-path .master {
    background: #eef2ff;
    border-color: #c7d2fe;
}

.course-grid,
.premium-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.course-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
    box-shadow: 0 12px 34px rgba(16, 24, 40, .06);
}

.course-thumb {
    display: block;
    position: relative;
    background: var(--surface-2);
}

.course-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.floating-badge {
    position: absolute;
    left: 12px;
    top: 12px;
    padding: 6px 9px;
    border-radius: 999px;
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 800;
}

.course-body {
    padding: 18px;
}

.meta-row,
.course-facts,
.meta-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.meta-row span,
.course-facts span,
.meta-pills span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 9px;
    border-radius: 999px;
    background: #f2f6f8;
    color: var(--muted);
    font-size: 12px;
    font-weight: 750;
}

.course-body h3 {
    min-height: 56px;
    margin: 14px 0 8px;
    font-size: 20px;
    line-height: 1.25;
}

.course-body p {
    min-height: 74px;
    margin: 0 0 14px;
}

.course-facts {
    margin: 14px 0;
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
}

.card-bottom strong {
    color: var(--primary-2);
}

.outcome-panel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.outcome-panel div {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 18px;
}

.outcome-panel i {
    color: var(--primary);
    margin-bottom: 12px;
}

.outcome-panel strong,
.outcome-panel span {
    display: block;
}

.outcome-panel span {
    color: var(--muted);
    margin-top: 6px;
    line-height: 1.5;
}

.page-hero {
    max-width: 1240px;
    margin: 0 auto;
    padding: 64px 28px 22px;
}

.page-hero h1 {
    max-width: 850px;
}

.detail-hero {
    max-width: 1240px;
    margin: 0 auto;
    padding: 60px 28px 34px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 32px;
    align-items: center;
}

.detail-copy h1 {
    font-size: clamp(34px, 5vw, 62px);
}

.detail-media img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.detail-layout {
    max-width: 1240px;
    margin: 0 auto;
    padding: 18px 28px 70px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 22px;
    align-items: start;
}

.detail-main {
    display: grid;
    gap: 16px;
}

.sticky {
    position: sticky;
    top: 92px;
}

.session-list,
.module-list {
    display: grid;
    gap: 10px;
}

.session-row,
.module-row {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fbfcfd;
}

.session-row > span,
.module-row > span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #eef9f7;
    color: var(--primary);
    font-weight: 900;
}

.session-row p,
.module-row p {
    margin: 4px 0 0;
}

.journey-shell,
.session-shell {
    max-width: 1240px;
    margin: 0 auto;
    padding: 46px 28px 72px;
}

.journey-hero,
.session-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 22px;
    align-items: stretch;
    margin-bottom: 24px;
}

.journey-progress-card,
.session-status {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
}

.journey-progress-card strong,
.session-status strong {
    color: var(--primary);
    font-size: 36px;
    line-height: 1;
}

.journey-progress-card span,
.journey-progress-card small,
.session-status span {
    color: var(--muted);
}

.journey-meter {
    height: 8px;
    border-radius: 999px;
    overflow: hidden;
    background: #e3ecef;
}

.journey-meter i {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.journey-map {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.module-stage {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 16px;
    box-shadow: 0 10px 30px rgba(16, 24, 40, .05);
}

.module-stage-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.module-stage-head span {
    color: var(--primary);
    font-weight: 850;
}

.session-ladder {
    display: grid;
    gap: 9px;
}

.session-node {
    min-height: 72px;
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) 24px;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fbfcfd;
    color: var(--ink);
    text-decoration: none;
}

.session-node.open:hover {
    border-color: #a7d9d2;
    background: #f0faf8;
}

.session-node.done {
    border-color: #bde7c8;
    background: #f0fdf4;
}

.session-node.locked {
    opacity: .58;
    cursor: not-allowed;
}

.session-index {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    font-weight: 900;
}

.session-node small {
    color: var(--muted);
}

.session-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 22px;
    align-items: start;
}

.session-main {
    display: grid;
    gap: 14px;
}

.session-step {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 16px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 10px 30px rgba(16, 24, 40, .05);
}

.session-step.active {
    border-color: #9bd8cf;
}

.session-step.complete {
    border-color: #bde7c8;
    background: #f7fef9;
}

.session-step.locked {
    opacity: .56;
}

.step-orbit span {
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--ink);
    color: white;
    font-weight: 900;
}

.session-step.complete .step-orbit span {
    background: var(--success);
}

.step-content h2 {
    margin: 3px 0 8px;
}

.material-stack {
    display: grid;
    gap: 10px;
    margin: 14px 0;
}

.material-pill,
.practice-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #fbfcfd;
    color: var(--ink);
    text-decoration: none;
}

.material-pill.muted {
    color: var(--muted);
}

.lesson-sections {
    display: grid;
    gap: 18px;
}

.lesson-section {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(16, 24, 40, .05);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.section-title > span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--ink);
    color: #fff;
    font-weight: 900;
}

.section-title h2 {
    margin: 0;
}

.section-title p {
    margin: 3px 0 0;
    color: var(--muted);
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}

.resource-button {
    text-align: left;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fbfcfd;
    padding: 14px;
    color: var(--ink);
    cursor: pointer;
    min-height: 116px;
}

.resource-button i {
    color: var(--primary);
    font-size: 1.3rem;
}

.resource-button strong,
.resource-button small {
    display: block;
    margin-top: 8px;
}

.resource-button small {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.empty-resource {
    border: 1px dashed var(--line);
    border-radius: 8px;
    padding: 16px;
    color: var(--muted);
}

.ai-tool-row,
.lesson-bottom-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.ai-output {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
    padding: 14px;
    margin-bottom: 14px;
}

.ai-output article {
    border-bottom: 1px solid var(--line);
    padding: 10px 0;
}

.ai-output article:last-child {
    border-bottom: 0;
}

.ai-output audio {
    width: 100%;
}

.quiz-panel fieldset {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
    margin: 12px 0;
}

.quiz-panel label {
    display: block;
    margin-top: 8px;
}

.quiz-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.attempt-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.attempt-list article,
.quiz-result {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fbfcfd;
}

.resource-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, .62);
    padding: 24px;
}

.resource-modal-panel {
    height: calc(100vh - 48px);
    border-radius: 8px;
    background: #fff;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    overflow: hidden;
}

.resource-modal-panel header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-bottom: 1px solid var(--line);
}

.resource-modal-panel iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.dashboard-progress {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 12px 0;
}

.dashboard-progress div {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: #f8fafc;
}

.dashboard-progress strong,
.dashboard-progress span {
    display: block;
}

.dashboard-progress span,
.certificate-status {
    color: var(--muted);
    font-size: .88rem;
}

.session-side {
    position: sticky;
    top: 92px;
    display: grid;
    gap: 14px;
}

.session-nav {
    display: grid;
    gap: 10px;
}

.admin-shell {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 24px;
    padding: 28px;
}

.admin-sidebar {
    position: sticky;
    top: 92px;
    align-self: start;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 14px;
    box-shadow: 0 10px 28px rgba(16, 24, 40, .05);
}

.admin-sidebar strong {
    display: block;
    padding: 10px;
    margin-bottom: 8px;
}

.admin-sidebar a {
    display: block;
    padding: 10px;
    border-radius: 6px;
    color: var(--muted);
    text-decoration: none;
    font-weight: 700;
}

.learning-studio {
    max-width: 1320px;
    margin: 0 auto;
    padding: 28px;
    display: grid;
    gap: 18px;
}

.studio-header {
    min-height: 230px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 24px;
    align-items: end;
    padding: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, #101828 0%, #174e52 58%, #0f766e 100%);
    color: #fff;
}

.studio-header h1 {
    max-width: 880px;
    margin: 8px 0 10px;
    font-size: clamp(2rem, 4vw, 4.4rem);
    line-height: .95;
}

.studio-header p {
    max-width: 760px;
    margin: 0;
    color: rgba(255, 255, 255, .78);
}

.studio-header .eyebrow {
    color: rgba(255, 255, 255, .72);
}

.studio-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    text-decoration: none;
    font-weight: 800;
    margin-bottom: 16px;
}

.studio-score {
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 8px;
    padding: 18px;
    background: rgba(255, 255, 255, .1);
}

.studio-score span,
.studio-score small,
.studio-score strong {
    display: block;
}

.studio-score strong {
    font-size: 3.4rem;
    line-height: 1;
}

.studio-tabs {
    position: sticky;
    top: 76px;
    z-index: 20;
    display: flex;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 12px 30px rgba(16, 24, 40, .08);
}

.studio-tabs a {
    flex: 1;
    text-align: center;
    padding: 12px;
    border-radius: 6px;
    color: var(--ink);
    text-decoration: none;
    font-weight: 900;
}

.studio-tabs a:hover {
    background: #eef9f7;
    color: var(--primary);
}

.studio-zone {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: 24px;
    box-shadow: 0 14px 38px rgba(16, 24, 40, .06);
}

.zone-head {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 20px;
}

.zone-index {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #0f766e;
    color: #fff;
    font-weight: 900;
}

.zone-head h2 {
    margin: 0;
    font-size: 1.8rem;
}

.zone-head p {
    margin: 4px 0 0;
    color: var(--muted);
}

.launch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px;
}

.launch-card {
    min-height: 170px;
    display: grid;
    align-content: start;
    gap: 9px;
    text-align: left;
    padding: 18px;
    border: 1px solid #d8e2ed;
    border-radius: 8px;
    background: #f8fafc;
    color: var(--ink);
    cursor: pointer;
}

.launch-card:hover {
    border-color: #0f766e;
    background: #eef9f7;
}

.launch-icon {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #0f766e;
    color: #fff;
}

.launch-kicker {
    color: var(--primary);
    font-size: .78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.launch-card strong {
    font-size: 1.22rem;
}

.launch-card small {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.tool-console {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 300px)) minmax(0, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}

.tool-command {
    min-height: 128px;
    border: 1px solid #bde7c8;
    border-radius: 8px;
    background: #f0fdf4;
    color: #14532d;
    padding: 18px;
    text-align: left;
    cursor: pointer;
}

.tool-command i,
.tool-command strong,
.tool-command span {
    display: block;
}

.tool-command i {
    font-size: 1.5rem;
    margin-bottom: 14px;
}

.tool-output {
    min-height: 128px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fbfcfd;
    padding: 14px;
}

.tool-output audio {
    width: 100%;
}

.assessment-board {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 18px;
}

.assessment-actions {
    align-self: start;
    display: grid;
    gap: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
    padding: 18px;
}

.assessment-actions strong,
.assessment-actions span {
    display: block;
}

.assessment-actions strong {
    font-size: 3rem;
}

.quiz-workbench fieldset {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    margin: 0 0 12px;
}

.quiz-workbench legend {
    font-weight: 900;
}

.quiz-workbench label {
    display: block;
    margin-top: 10px;
}

.studio-attempts {
    grid-column: 2;
}

.studio-empty {
    border: 1px dashed #b7c6d6;
    border-radius: 8px;
    padding: 18px;
    color: var(--muted);
    background: #fbfcfd;
}

.studio-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.studio-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(2, 8, 23, .72);
    padding: 22px;
}

.studio-modal-panel {
    height: calc(100vh - 44px);
    display: grid;
    grid-template-rows: 58px minmax(0, 1fr);
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}

.studio-modal-panel header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 14px 0 18px;
    border-bottom: 1px solid var(--line);
}

.studio-modal-panel iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.icon-link {
    width: 38px;
    height: 38px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    text-decoration: none;
    cursor: pointer;
}

@media (max-width: 820px) {
    .learning-studio {
        padding: 16px;
    }

    .studio-header,
    .assessment-board,
    .tool-console {
        grid-template-columns: 1fr;
    }

    .studio-tabs {
        top: 0;
        overflow-x: auto;
    }

    .studio-tabs a {
        min-width: 150px;
    }

    .studio-attempts {
        grid-column: auto;
    }
}

.module-studio {
    --module: #0f766e;
    --module-soft: #eef9f7;
    max-width: 1360px;
    margin: 0 auto;
    padding: 28px;
    display: grid;
    gap: 18px;
}

.module-color-2 { --module: #2563eb; --module-soft: #eff6ff; }
.module-color-3 { --module: #7c3aed; --module-soft: #f5f3ff; }
.module-color-4 { --module: #c2410c; --module-soft: #fff7ed; }
.module-color-5 { --module: #be123c; --module-soft: #fff1f2; }

.module-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 24px;
    align-items: end;
    min-height: 280px;
    padding: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, #101828 0%, var(--module) 100%);
    color: #fff;
}

.module-hero h1 {
    margin: 4px 0 12px;
    max-width: 980px;
    font-size: 4.6rem;
    line-height: 1;
}

.module-hero p {
    max-width: 780px;
    margin: 0;
    color: rgba(255, 255, 255, .8);
}

.module-hero .eyebrow {
    color: rgba(255, 255, 255, .72);
    margin: 0 0 10px;
}

.module-completion {
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 8px;
    padding: 18px;
    background: rgba(255, 255, 255, .12);
}

.module-completion span,
.module-completion strong,
.module-completion small {
    display: block;
}

.module-completion strong {
    font-size: 3.5rem;
    line-height: 1;
}

.module-menu {
    position: sticky;
    top: 76px;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 12px 30px rgba(16, 24, 40, .08);
}

.module-menu a {
    display: grid;
    gap: 2px;
    padding: 12px;
    border-radius: 6px;
    color: var(--ink);
    text-decoration: none;
    font-weight: 900;
    background: #f8fafc;
}

.module-menu a small {
    color: var(--muted);
    font-weight: 700;
}

.module-menu a.active {
    background: var(--module);
    color: #fff;
}

.module-menu a.active small {
    color: rgba(255,255,255,.8);
}

.module-menu a.done {
    background: #dcfce7;
}

.module-menu a.locked {
    opacity: .48;
    cursor: not-allowed;
}

.module-board {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 14px 38px rgba(16, 24, 40, .06);
}

.module-board-head {
    padding: 22px 24px;
    background: var(--module-soft);
    border-bottom: 1px solid var(--line);
}

.module-board-head span {
    color: var(--module);
    font-weight: 900;
    text-transform: uppercase;
    font-size: .8rem;
}

.module-board-head h2 {
    margin: 4px 0 0;
}

.module-sections {
    display: grid;
    gap: 0;
}

.module-feature {
    padding: 22px 24px;
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.module-feature-head {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    margin-bottom: 16px;
}

.module-feature-head i {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 8px;
    background: var(--module);
    color: #fff;
}

.module-feature-head h2 {
    margin: 0;
}

.module-feature-head p {
    margin: 4px 0 0;
    color: var(--muted);
}

.module-video-panel {
    display: grid;
    gap: 10px;
    max-width: 980px;
}

.module-video-panel video {
    width: 100%;
    max-height: 460px;
    border-radius: 8px;
    background: #0f172a;
}

.module-video-panel.is-done .done-mark {
    display: inline-flex;
}

.module-session-list {
    display: grid;
    gap: 0;
}

.module-session-card {
    --session: var(--module);
    --session-soft: var(--module-soft);
    padding: 22px 24px;
    border-bottom: 8px solid #eef2f7;
    background: linear-gradient(90deg, var(--session-soft) 0, #fff 30%);
}

.module-session-head {
    display: grid;
    grid-template-columns: 82px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    margin-bottom: 18px;
}

.module-session-head span {
    min-height: 52px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--session);
    color: #fff;
    font-size: .95rem;
    font-weight: 900;
}

.module-session-head h3 {
    margin: 0;
    font-size: 1.45rem;
}

.module-session-head p {
    max-width: 860px;
    margin: 6px 0 0;
    color: var(--muted);
    line-height: 1.5;
}

.session-color-1 { --session: #047857; --session-soft: #ecfdf5; }
.session-color-2 { --session: #2563eb; --session-soft: #eff6ff; }
.session-color-3 { --session: #7c3aed; --session-soft: #f5f3ff; }
.session-color-4 { --session: #c2410c; --session-soft: #fff7ed; }
.session-color-5 { --session: #be123c; --session-soft: #fff1f2; }

.session-resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
}

.module-section {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 20px;
    padding: 22px 24px;
    border-bottom: 1px solid var(--line);
}

.module-section:last-child {
    border-bottom: 0;
}

.module-section-head {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.module-section-head i {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 8px;
    background: var(--module);
    color: #fff;
}

.module-section-head h3 {
    margin: 0;
    font-size: 1.25rem;
}

.module-section-head p {
    margin: 4px 0 0;
    color: var(--muted);
    line-height: 1.45;
}

.module-resource-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
    align-items: start;
}

.module-launch {
    min-height: 104px;
    display: grid;
    gap: 8px;
    align-content: start;
    text-align: left;
    border: 1px solid #d8e2ed;
    border-radius: 8px;
    background: #f8fafc;
    color: var(--ink);
    padding: 14px;
    cursor: pointer;
    position: relative;
}

.module-launch i {
    color: var(--session, var(--module));
    font-size: 1.3rem;
}

.module-launch:hover {
    border-color: var(--session, var(--module));
    background: var(--session-soft, var(--module-soft));
}

.module-launch strong {
    font-size: 1.1rem;
}

.module-launch span {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.done-mark {
    display: none;
    justify-self: start;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 5px 8px;
    background: #dcfce7;
    color: #166534 !important;
    font-size: .78rem;
    font-weight: 900;
}

.done-mark i {
    color: #166534;
    font-size: .78rem;
}

.module-launch.is-done {
    border-color: #86efac;
    background: #f0fdf4;
}

.module-launch.is-done .done-mark {
    display: inline-flex;
}

.module-evaluation {
    border-top: 4px solid var(--module);
}

.module-final-practice {
    border-top: 4px solid var(--module);
    background: #fff;
}

.module-quiz {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed #cbd5e1;
}

.compact-tools {
    grid-template-columns: repeat(2, minmax(220px, 280px)) minmax(0, 1fr);
    margin: 0;
}

@media (max-width: 860px) {
    .module-studio {
        padding: 16px;
        gap: 14px;
    }

    .module-hero,
    .module-section,
    .module-quiz,
    .compact-tools {
        grid-template-columns: 1fr;
    }

    .module-hero {
        min-height: auto;
        padding: 24px;
        align-items: start;
    }

    .module-hero h1 {
        font-size: 2.45rem;
        line-height: 1.05;
    }

    .module-completion {
        max-width: 220px;
    }

    .module-menu {
        top: 0;
        grid-template-columns: repeat(5, minmax(120px, 1fr));
        overflow-x: auto;
    }

    .module-session-card {
        padding: 18px;
    }

    .module-session-head {
        grid-template-columns: 66px minmax(0, 1fr);
        gap: 12px;
    }

    .module-session-head span {
        min-height: 46px;
        font-size: .88rem;
    }

    .module-session-head h3 {
        font-size: 1.22rem;
    }

    .session-resource-grid {
        grid-template-columns: 1fr;
    }

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

    .objective-row > strong {
        width: 72px;
    }
}

@media (max-width: 520px) {
    .module-studio {
        padding: 10px;
    }

    .module-hero {
        padding: 20px;
    }

    .module-hero h1 {
        font-size: 2rem;
    }

    .module-session-card {
        padding: 16px;
    }

    .module-session-head {
        grid-template-columns: 1fr;
    }

    .module-session-head span {
        width: 72px;
    }
}

.admin-sidebar a:hover {
    background: #eef9f7;
    color: var(--primary-2);
}

.admin-content {
    min-width: 0;
}

.admin-head {
    margin-bottom: 18px;
}

.auth-public-card label,
.panel label,
.detail-block label {
    display: grid;
    gap: 7px;
    color: var(--ink);
    font-weight: 700;
    margin-bottom: 14px;
}

input,
select,
textarea {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
    color: var(--ink);
    padding: 0 12px;
    font: inherit;
}

input[type="checkbox"] {
    width: auto;
    min-height: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

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

th {
    background: #f2f6f8;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

.ai-guide {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 90;
}

.ai-guide-avatar {
    width: 58px;
    height: 58px;
    border: 0;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    box-shadow: 0 18px 45px rgba(15, 118, 110, .28);
    cursor: pointer;
}

.ai-guide-panel {
    display: none;
    position: absolute;
    right: 0;
    bottom: 72px;
    width: min(380px, calc(100vw - 28px));
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.ai-guide.open .ai-guide-panel {
    display: block;
}

.ai-guide-head {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 10px;
    padding: 14px;
    border-bottom: 1px solid var(--line);
}

.ai-guide-head small {
    display: block;
    color: var(--muted);
    margin-top: 3px;
}

.ai-guide-close {
    border: 0;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

.ai-guide-body {
    max-height: 280px;
    overflow: auto;
    padding: 14px;
    color: var(--muted);
}

.ai-guide-body .me {
    color: var(--ink);
    background: #eef9f7;
    border-radius: 7px;
    padding: 9px 10px;
}

.ai-guide-form {
    display: grid;
    grid-template-columns: 1fr auto;
    border-top: 1px solid var(--line);
}

.ai-guide-form input {
    border: 0;
    border-radius: 0;
}

.ai-guide-form button {
    border: 0;
    background: var(--primary);
    color: white;
    padding: 0 14px;
    font-weight: 800;
}

@media (max-width: 1000px) {
    .topbar {
        grid-template-columns: auto auto;
        height: auto;
        padding: 14px 18px;
    }

    .nav-links {
        display: none;
    }

    .hero,
    .detail-hero,
    .detail-layout,
    .journey-hero,
    .session-hero,
    .session-layout,
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .cert-path,
    .outcome-panel,
    .journey-map {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-sidebar,
    .session-side,
    .sticky {
        position: static;
    }
}

@media (max-width: 640px) {
    .topbar {
        gap: 12px;
    }

    .brand span {
        display: none;
    }

    .nav-actions {
        justify-content: end;
    }

    .hero,
    .section,
    .page-hero,
    .detail-hero,
    .detail-layout,
    .journey-shell,
    .session-shell,
    .admin-shell {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero h1,
    .page-hero h1,
    .detail-copy h1,
    .journey-hero h1,
    .session-hero h1 {
        font-size: 34px;
    }

    .searchbar,
    .searchbar.wide {
        grid-template-columns: 1fr;
        padding: 12px;
    }

    .section-head,
    .band-head {
        align-items: start;
        flex-direction: column;
    }

    .cert-path,
    .outcome-panel,
    .journey-map {
        grid-template-columns: 1fr;
    }

    .session-step {
        grid-template-columns: 1fr;
    }

    .session-node {
        grid-template-columns: 42px minmax(0, 1fr) 22px;
    }
}