:root {
    color-scheme: light;
    --ink: #172033;
    --muted: #667085;
    --line: #e4e8f0;
    --surface: #fff;
    --canvas: #f5f7fb;
    --primary: #3157d5;
    --primary-dark: #2343b3;
    --green: #15835b;
    --red: #b42318;
    --shadow: 0 12px 32px rgba(31, 45, 85, .07);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar { min-height: 64px; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 9px; min-width: 0; color: var(--ink); font-weight: 750; font-size: 15px; }
.brand:hover { text-decoration: none; }
.brand small { display: block; color: var(--muted); font-size: 11px; font-weight: 500; }
.brand-mark { display: grid; flex: 0 0 38px; place-items: center; width: 38px; height: 38px; border-radius: 11px; background: #e9eeff; color: var(--primary); font-size: 20px; }
.user-menu { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 4px 10px; min-width: 0; color: var(--muted); font-size: 11px; text-align: right; }
.student-avatar { flex: 0 0 34px; width: 34px; height: 34px; border: 2px solid #e4eaff; border-radius: 50%; background: #f1f4fb; object-fit: cover; }
.container { max-width: 1180px; width: calc(100% - 28px); min-width: 0; margin: 20px auto 42px; }
.narrow { max-width: 600px; margin-top: clamp(28px, 8vh, 72px); }
.hero { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; padding: 22px; border-radius: 16px; color: #fff; background: linear-gradient(120deg, #263f9f, #426ce6 65%, #7594f2); box-shadow: var(--shadow); }
.hero h1 { max-width: 690px; margin: 4px 0 8px; font-size: clamp(27px, 4vw, 38px); line-height: 1.15; }
.hero p { margin: 0; color: rgba(255,255,255,.83); }
.hero .eyebrow { color: #d7e0ff; }
.student-hero { background: linear-gradient(120deg, #126a64, #169b83 68%, #6ac5a3); }
.eyebrow { margin: 0 0 7px; color: #74809a; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.hero .eyebrow { color: rgba(255,255,255,.77); }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(24px, 5vw, 30px); line-height: 1.2; margin-bottom: 8px; overflow-wrap: anywhere; }
h2 { font-size: clamp(18px, 4vw, 20px); margin-bottom: 14px; }
h3 { font-size: 16px; }
.muted, small { color: var(--muted); }
.card, .stat-card, .quick-card, .package-card { background: var(--surface); border: 1px solid var(--line); border-radius: 17px; box-shadow: var(--shadow); }
.card { min-width: 0; margin-top: 16px; padding: 16px; }
.stat-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; margin: 16px 0; }
.stat-card { min-width: 0; padding: 16px; }
.stat-card span, .stat-card small { display: block; color: var(--muted); font-size: 13px; }
.stat-card strong { display: block; margin: 4px 0; font-size: 30px; }
.quick-grid, .package-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; margin: 16px 0; }
.quick-card { display: block; min-width: 0; padding: 18px; color: var(--ink); transition: transform .15s ease, border-color .15s ease; }
.quick-card:hover { transform: translateY(-2px); border-color: #b5c4f8; text-decoration: none; }
.quick-icon { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 12px; background: #edf1ff; border-radius: 11px; color: var(--primary); font-weight: 800; }
.quick-card strong, .quick-card small { display: block; }
.quick-card small { margin-top: 5px; }
.section-heading { display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; gap: 10px; margin: 22px 0 12px; }
.section-heading h1, .section-heading h2 { margin-bottom: 5px; }
.section-heading p { margin-bottom: 0; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; max-width: 100%; padding: 10px 13px; border: 1px solid transparent; border-radius: 10px; font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; text-align: center; text-decoration: none; white-space: normal; }
.button:hover { text-decoration: none; }
.primary { background: var(--primary); color: #fff; }
.primary:hover { background: var(--primary-dark); }
.secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.danger { background: #fff1f0; color: var(--red); border-color: #ffd3d0; }
.alert { padding: 14px 17px; margin: 0 0 16px; border-radius: 11px; font-size: 14px; }
.success { background: #eaf8f1; color: #116541; border: 1px solid #bdebd1; }
.error { background: #fff1f0; color: #9e271f; border: 1px solid #ffd3d0; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
.analysis-results-table { min-width: 0; }
.analysis-results-table thead { display: none; }
.analysis-results-table, .analysis-results-table tbody { display: block; }
.analysis-results-table tbody { display: grid; gap: 10px; }
.analysis-results-table tr { display: block; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.analysis-results-table td { display: grid; grid-template-columns: minmax(82px, .45fr) minmax(0, 1fr); gap: 10px; padding: 7px 0; border-bottom: 1px solid #eef0f4; overflow-wrap: anywhere; }
.analysis-results-table td:first-child { display: block; padding-top: 0; font-weight: 700; }
.analysis-results-table td:last-child { border-bottom: 0; }
.analysis-results-table td:not(:first-child)::before { content: attr(data-label); color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
th, td { padding: 13px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
td { font-size: 13px; }
.badge { display: inline-flex; padding: 4px 9px; border-radius: 999px; background: #f0f2f6; color: #475467; font-size: 11px; font-weight: 700; }
.badge.published { background: #eaf8f1; color: #11754f; }
.badge.draft { background: #fff4df; color: #946200; }
.actions { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.actions form { display: inline; }
.link-button { padding: 0; border: 0; background: none; color: var(--primary); font: inherit; cursor: pointer; }
.form-grid { display: grid; grid-template-columns: minmax(0,1fr); gap: 14px; align-items: start; }
.form-grid > h2 { margin-bottom: 0; }
.question-form { max-width: 900px; margin: 14px auto; padding: 16px; }
.question-type-fields { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: #fafbfe; }
.question-type-fields h3 { margin: 0 0 4px; }
.question-type-fields p { margin: 0; color: var(--muted); font-size: 12px; }
.builder-heading { display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.option-editor, .pair-editor { display: grid; gap: 10px; }
.option-row { display: grid; grid-template-columns: 32px minmax(0,1fr) 34px; gap: 8px; align-items: start; }
.option-code, .pair-number { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: #edf1ff; color: var(--primary); font-weight: 800; }
.correct-choice { display: flex; grid-column: 2; grid-row: 2; align-items: center; gap: 6px; white-space: nowrap; font-weight: 600; }
.correct-choice input { width: 17px; height: 17px; margin: 0; }
.icon-button { grid-column: 3; grid-row: 1 / span 2; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 9px; background: white; color: #8b3940; font-size: 20px; cursor: pointer; }
.pair-row { display: grid; grid-template-columns: 30px minmax(0,1fr) 36px; gap: 8px; align-items: center; }
.pair-arrow { grid-column: 2; color: var(--muted); font-size: 12px; text-align: left; }
.pair-row input[data-pair-right] { grid-column: 2; }
.pair-row .icon-button { grid-column: 3; grid-row: 1 / span 3; }
.ai-card summary, .optional-details summary { color: #344054; font-weight: 750; cursor: pointer; }
.ai-card summary { font-size: 17px; }
.ai-card[open] summary { margin-bottom: 12px; }
.ai-prompt-form { display: grid; gap: 12px; max-width: 700px; }
.prompt-box { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.optional-details { padding: 13px 15px; border: 1px solid var(--line); border-radius: 11px; }
.optional-details[open] summary { margin-bottom: 14px; }
.optional-details label { margin-top: 12px; }
.ai-copy-steps { margin: 12px 0; padding-left: 22px; color: var(--muted); font-size: 13px; }
.ai-copy-steps li + li { margin-top: 4px; }
.ai-prompt-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.ai-privacy-note { margin: 10px 0 0; color: var(--muted); font-size: 11px; }
label { display: grid; min-width: 0; gap: 6px; color: #344054; font-size: 13px; font-weight: 650; }
label small { font-weight: 400; line-height: 1.4; }
input, select, textarea { width: 100%; min-width: 0; min-height: 44px; padding: 10px 12px; border: 1px solid #d4dae5; border-radius: 9px; background: #fff; color: var(--ink); font: inherit; font-size: 16px; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(49,87,213,.14); border-color: #718ce8; }
.full { grid-column: auto; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.ai-card { border-color: #d8def9; background: linear-gradient(135deg, #fff, #f7f8ff); }
.ai-card > p { max-width: 780px; }
.prompt-label { margin-top: 15px; }
.two-column { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.two-column > .card { margin-top: 0; }
.check-row { display: flex; align-items: flex-start; gap: 10px; margin: 12px 0; font-weight: 500; }
.check-row input { flex: 0 0 20px; width: 20px; min-height: 20px; height: 20px; margin-top: 2px; }
.check-row small { display: block; }
.stack { display: grid; gap: 12px; }
.list-item { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.list-item p { margin: 4px 0 8px; color: var(--muted); font-size: 12px; }
.package-card { min-width: 0; padding: 18px; }
.package-card h3 { margin: 14px 0 6px; }
.package-card > p { color: var(--muted); font-size: 13px; }
.package-meta { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
.empty-state { text-align: center; padding: 40px; }
.footer { padding: 28px 0 0; text-align: center; color: #8892a6; font-size: 12px; }
.exam-header { display: flex; flex-direction: column; align-items: stretch; justify-content: space-between; gap: 12px; margin: 8px 0 14px; }
.exam-header h1 { margin: 0; }
.exam-progress-copy { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.exam-header-tools { display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; }
.font-controls { display: flex; align-items: center; gap: 5px; padding: 5px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }
.font-controls span { padding: 0 5px; color: var(--muted); font-size: 11px; }
.font-controls button { min-width: 34px; height: 32px; border: 0; border-radius: 7px; background: #f1f4fb; color: var(--ink); font-weight: 750; cursor: pointer; }
.font-controls button:hover { background: #e4eaff; color: var(--primary); }
.timer { flex: 0 0 auto; padding: 8px 12px; border: 1px solid #ffd5d1; border-radius: 12px; background: #fff2f0; color: #a72921; font-size: 21px; font-weight: 800; font-variant-numeric: tabular-nums; }
.exam-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; align-items: start; }
.question-nav { position: static; display: grid; grid-template-columns: repeat(6, minmax(32px, 1fr)); grid-auto-rows: 36px; gap: 6px; max-height: 114px; overflow-y: auto; padding: 10px; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.question-nav a { display: grid; place-items: center; min-width: 32px; min-height: 34px; border: 1px solid var(--line); border-radius: 9px; color: #475467; font-size: 12px; }
.question-nav a.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.question-nav a.answered:not(.active) { background: #eaf8f1; border-color: #bdebd1; color: #116541; }
.question-nav a.flagged:not(.active) { background: #fff4df; border-color: #f1ce83; color: #946200; }
.exam-card { margin-top: 0; padding: 16px; }
.exam-question-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.exam-question-meta .eyebrow { margin: 0; }
.question-prompt { margin: 18px 0; font-size: var(--exam-font-size, 1.125rem); line-height: 1.65; overflow-wrap: anywhere; }
.question-context { margin: 18px 0; padding: 18px 20px; border: 1px solid #dce4f5; border-left: 4px solid #718ce8; border-radius: 12px; background: #f7f9ff; font-size: var(--exam-font-size, 1.125rem); line-height: 1.7; white-space: normal; overflow-wrap: anywhere; }
.question-context > div { max-height: 42vh; overflow: auto; white-space: pre-wrap; }
.context-label { margin: 0 0 8px; color: #52648d; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.assertion-block { margin: 16px 0; padding: 14px 16px; border-left: 3px solid #7890e8; border-radius: 0 10px 10px 0; background: #f5f7ff; }
.assertion-block p:last-child { margin-bottom: 0; }
.option-list { display: grid; gap: 8px; margin: 18px 0; }
.option-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; }
.option-item strong { color: var(--primary); }
.answer-options, .matching-list { display: flex; flex-direction: column; gap: 8px; min-width: 0; margin: 16px 0; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: #fbfcff; }
.answer-options legend, .matching-list legend { max-width: 100%; padding: 0 7px; color: #52648d; font-size: 12px; font-weight: 750; }
.answer-option { display: flex !important; flex-direction: row; align-items: flex-start; gap: 9px; width: 100%; padding: 11px; border: 1px solid var(--line); border-radius: 11px; background: #fff; cursor: pointer; font-weight: 500; transition: border-color .15s ease, background .15s ease, box-shadow .15s ease; }
.answer-option:hover { border-color: #b7c6f5; background: #f8faff; }
.answer-option:has(input:checked) { border-color: #8da3ee; background: #eef2ff; box-shadow: 0 0 0 2px rgba(49,87,213,.08); }
.answer-option input { flex: 0 0 18px; width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--primary); }
.option-marker { display: grid; flex: 0 0 30px; place-items: center; min-height: 30px; border-radius: 8px; background: #edf1ff; color: var(--primary); font-size: 12px; font-weight: 800; }
.option-copy { min-width: 0; color: var(--ink); font-size: var(--exam-font-size, 1.125rem); font-weight: 550; line-height: 1.55; overflow-wrap: anywhere; }
.matching-list label { display: grid; }
.matching-row { grid-template-columns: minmax(0, 1fr); align-items: stretch; gap: 7px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.matching-row:last-child { border-bottom: 0; }
.matching-prompt { font-size: var(--exam-font-size, 1.125rem); line-height: 1.5; }
.matching-arrow { display: none; color: var(--muted); text-align: center; }
.matching-row select { min-width: 0; }
.short-answer-label { max-width: 680px; margin: 18px 0; }
.short-answer-label input { min-height: 50px; font-size: var(--exam-font-size, 1.125rem); }
.flag-control { display: flex; align-items: center; gap: 9px; margin: 14px 0; color: #946200; }
.flag-control input { flex: 0 0 17px; width: 17px; height: 17px; margin: 0; accent-color: #946200; }
.exam-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 14px; }
.exam-actions .button { width: 100%; }
.exam-actions .primary { grid-column: 1 / -1; grid-row: 1; }
.finish-form { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.review-item { padding: 15px 0; border-bottom: 1px solid var(--line); }
.review-item:last-child { border-bottom: 0; }
.analysis-form { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.analysis-form button { margin-top: 12px; }
.landing-page { --landing-accent: #3157d5; --landing-accent-soft: #e9eeff; min-height: 100vh; display: flex; flex-direction: column; background: radial-gradient(ellipse at 80% 0%, #edf2ff 0, transparent 34%), #f7f9fd; }
.landing-topbar { padding-right: max(14px, calc((100vw - 1120px) / 2)); padding-left: max(14px, calc((100vw - 1120px) / 2)); }
.landing-school-brand { gap: 10px; }
.landing-school-brand > span:last-child { overflow-wrap: anywhere; }
.landing-school-brand small { max-width: 52vw; color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: .08em; line-height: 1.35; text-transform: uppercase; }
.landing-school-logo { flex: 0 0 42px; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; background: #fff; object-fit: contain; }
.landing-school-fallback { flex: 0 0 42px; width: 42px; height: 42px; border-radius: 12px; font-size: 12px; }
.landing-school-fallback[hidden] { display: none; }
.landing-container { flex: 1; max-width: 1120px; margin-top: 24px; margin-bottom: 28px; }
.landing-hero { position: relative; display: grid; gap: 26px; align-items: center; overflow: hidden; padding: 27px 22px; border: 1px solid #e3e9f6; border-radius: 22px; background: linear-gradient(135deg, #fff 15%, #eef3ff 100%); box-shadow: var(--shadow); }
.landing-copy { max-width: 650px; }
.landing-copy .eyebrow { color: var(--primary); }
.landing-eyebrow-dot { display: inline-block; width: 8px; height: 8px; margin-right: 5px; border-radius: 50%; background: var(--landing-accent); box-shadow: 0 0 0 4px rgba(49,87,213,.1); vertical-align: 1px; }
.landing-copy h1 { max-width: 620px; margin: 0 0 14px; font-size: clamp(34px, 8vw, 56px); line-height: 1.08; letter-spacing: -.04em; }
.landing-intro { max-width: 590px; margin-bottom: 21px; color: #526078; font-size: 16px; line-height: 1.7; }
.landing-quick-points { display: grid; gap: 8px; margin: 0 0 20px; padding: 0; list-style: none; }
.landing-quick-points li { display: flex; align-items: center; gap: 8px; color: #46536b; font-size: 12px; font-weight: 650; }
.landing-quick-points li span { display: grid; flex: 0 0 18px; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: #eaf8f1; color: #15835b; font-size: 10px; font-weight: 900; }
.landing-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; }
.landing-actions .button { min-height: 48px; padding-right: 18px; padding-left: 18px; }
.landing-primary-action { gap: 12px; min-height: 52px !important; padding: 12px 21px !important; border-radius: 12px; background: var(--landing-accent); box-shadow: 0 8px 18px rgba(49,87,213,.22); font-size: 14px; }
.landing-primary-action span { font-size: 19px; line-height: 1; transition: transform .18s ease; }
.landing-primary-action:hover span { transform: translateX(3px); }
.landing-text-link { color: #59667e; font-size: 12px; font-weight: 650; text-decoration: underline; text-decoration-color: #c3cada; text-underline-offset: 3px; }
.landing-login-hint { margin: 13px 0 0; color: var(--muted); font-size: 12px; }
.landing-preview { position: relative; display: flex; min-width: 0; flex-direction: column; padding: 10px 4px 0; }
.landing-preview-glow { position: absolute; inset: 12% 2% 12%; border-radius: 50%; background: rgba(93,126,235,.24); filter: blur(38px); }
.landing-preview-card { position: relative; overflow: hidden; padding: 15px; border: 1px solid rgba(222,228,242,.95); border-radius: 16px; background: rgba(255,255,255,.97); box-shadow: 0 18px 44px rgba(37,53,96,.13); transform: rotate(-1deg); }
.landing-preview-top, .landing-preview-label, .landing-preview-progress > div, .landing-preview-bottom { display: flex; align-items: center; justify-content: space-between; gap: 9px; }
.landing-preview-label { justify-content: flex-start; color: #78839b; font-size: 9px; font-weight: 850; letter-spacing: .09em; }
.landing-preview-label > span { width: 7px; height: 7px; border-radius: 50%; background: #35b883; box-shadow: 0 0 0 3px #e7f7f0; }
.landing-preview-timer { padding: 5px 7px; border-radius: 6px; background: #f1f4fa; color: #37445f; font-size: 10px; font-variant-numeric: tabular-nums; font-weight: 800; }
.landing-preview-progress { margin: 17px 0 15px; }
.landing-preview-progress > div { margin-bottom: 7px; color: #7b8496; font-size: 10px; }
.landing-preview-progress strong { color: #26334e; font-size: 11px; }
.landing-preview-progress strong small { color: #8992a3; font-size: 9px; }
.landing-progress-track { display: block; height: 5px; overflow: hidden; border-radius: 999px; background: #edf0f7; }
.landing-progress-track > span { display: block; width: 24%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #3157d5, #7b93f2); }
.landing-preview-question { display: grid; gap: 7px; }
.landing-question-type { margin-bottom: 1px; color: #75809a; font-size: 8px; font-weight: 850; letter-spacing: .08em; }
.landing-preview-question > strong { margin-bottom: 3px; color: #28334b; font-size: 12px; line-height: 1.45; }
.landing-preview-option { display: flex; align-items: center; gap: 7px; min-width: 0; padding: 6px 7px; border: 1px solid #edf0f5; border-radius: 7px; color: #5b6579; font-size: 9px; line-height: 1.35; }
.landing-preview-option i { display: grid; flex: 0 0 17px; place-items: center; width: 17px; height: 17px; border-radius: 5px; background: #f1f3f8; color: #606b82; font-size: 8px; font-style: normal; font-weight: 800; }
.landing-option-selected { border-color: #bdcaf7; background: #f3f5ff; color: #31488f; }
.landing-option-selected i { background: var(--landing-accent); color: #fff; }
.landing-preview-bottom { margin-top: 12px; padding-top: 10px; border-top: 1px solid #edf0f5; color: #8b94a5; font-size: 9px; }
.landing-preview-bottom strong { color: #56627b; font-size: 9px; }
.landing-preview-disclaimer { position: relative; margin: 10px 4px 0; color: #6f7b91; font-size: 10px; line-height: 1.45; text-align: right; }
.landing-preview-disclaimer span { margin-right: 3px; color: #5269b1; }
.landing-photo-slider { position: relative; height: 210px; margin-top: 20px; overflow: hidden; border: 1px solid #dfe5f0; border-radius: 18px; background: var(--slider-background, #17223a); box-shadow: var(--shadow); transition: background-color .35s ease; }
.landing-header-slider { width: 100%; height: 230px; margin: 0; border: 0; border-radius: 0; box-shadow: 0 12px 30px rgba(31,45,85,.12); }
.landing-slider-track { position: absolute; inset: 0; }
.landing-slide { position: absolute; inset: 0; display: none; overflow: hidden; visibility: hidden; opacity: 0; background-color: var(--slide-background, #17223a); transition: opacity .55s ease, visibility .55s ease, background-color .35s ease; }
.landing-slide.is-active { display: block; visibility: visible; opacity: 1; }
.landing-slide::before { position: absolute; inset: -12px; background-image: var(--slide-image); background-position: center; background-size: cover; content: ""; filter: blur(16px) brightness(.62); transform: scale(1.06); }
.landing-slide img { position: relative; z-index: 1; display: block; width: 100%; height: 100%; background-color: transparent; object-fit: contain; object-position: center; }
.landing-slide-shade { position: absolute; z-index: 2; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(12,24,53,.56), rgba(12,24,53,.12) 62%, rgba(12,24,53,.02)); }
.landing-slide-caption { position: absolute; z-index: 3; right: 70px; bottom: 45px; left: 18px; max-width: 680px; color: #fff; text-shadow: 0 1px 12px rgba(0,0,0,.25); }
.landing-slide-caption h2 { margin: 0 0 5px; font-size: clamp(18px, 4vw, 28px); line-height: 1.2; }
.landing-slide-caption p { display: -webkit-box; max-width: 600px; margin: 0; overflow: hidden; color: rgba(255,255,255,.92); font-size: 12px; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.landing-slider-controls { position: absolute; right: 12px; bottom: 12px; left: 12px; z-index: 2; display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.landing-slider-arrow, .landing-slider-pause { display: grid; min-width: 34px; height: 34px; place-items: center; padding: 0 9px; border: 1px solid rgba(255,255,255,.55); border-radius: 10px; background: rgba(13,25,53,.45); color: #fff; font: inherit; font-size: 18px; font-weight: 750; cursor: pointer; backdrop-filter: blur(8px); }
.landing-slider-pause { min-width: 52px; font-size: 10px; }
.landing-slider-arrow:hover, .landing-slider-pause:hover { background: rgba(13,25,53,.72); }
.landing-slider-arrow:focus-visible, .landing-slider-pause:focus-visible, .landing-slider-dot:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }
.landing-slider-dots { display: flex; align-items: center; gap: 6px; margin-right: auto; padding: 7px 9px; border-radius: 999px; background: rgba(13,25,53,.36); backdrop-filter: blur(8px); }
.landing-slider-dot { width: 7px; height: 7px; padding: 0; border: 0; border-radius: 99px; background: rgba(255,255,255,.58); cursor: pointer; transition: width .2s ease, background .2s ease; }
.landing-slider-dot.is-active { width: 19px; background: #fff; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.landing-steps-section { margin-top: 34px; }
.landing-section-heading { max-width: 660px; margin: 0 auto 17px; text-align: center; }
.landing-section-heading .eyebrow { margin-bottom: 7px; color: var(--landing-accent); }
.landing-section-heading h2 { margin-bottom: 7px; font-size: clamp(21px, 4.5vw, 28px); line-height: 1.2; letter-spacing: -.025em; }
.landing-section-heading > p:last-child { margin-bottom: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.landing-features { display: grid; gap: 12px; margin-top: 16px; }
.landing-feature { position: relative; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.landing-feature:hover { transform: translateY(-3px); border-color: #c9d4f4; box-shadow: 0 12px 26px rgba(31,45,85,.08); }
.landing-feature > span { display: inline-grid; place-items: center; width: 29px; height: 29px; border-radius: 9px; background: var(--landing-accent-soft); color: var(--landing-accent); font-size: 10px; font-weight: 850; letter-spacing: .04em; }
.landing-feature h2 { margin: 8px 0 6px; font-size: 17px; }
.landing-feature p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.landing-next-step { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; margin-top: 18px; padding: 19px; border: 1px solid #dfe6f7; border-radius: 16px; background: linear-gradient(110deg, #fff, #f0f4ff); }
.landing-next-step strong { display: block; color: #26334e; font-size: 16px; }
.landing-next-step p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.landing-next-step .button { align-self: stretch; }
.landing-footer { padding: 16px; color: var(--muted); font-size: 12px; text-align: center; }
.landing-footer span { padding: 0 5px; }
.landing-live-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 22px 0 4px; }
.landing-live-stats article { display: flex; min-width: 0; flex-direction: column; align-items: flex-start; gap: 7px; padding: 12px 10px; border: 1px solid #e3e8f3; border-radius: 13px; background: rgba(255,255,255,.88); }
.landing-live-stat-icon { display: grid; width: 25px; height: 25px; place-items: center; border-radius: 8px; background: #edf1ff; color: var(--landing-accent); font-size: 13px; font-weight: 850; }
.landing-live-stats article div { min-width: 0; }
.landing-live-stats strong, .landing-live-stats article div > span { display: block; overflow-wrap: anywhere; }
.landing-live-stats strong { color: #26334e; font-size: clamp(18px, 4vw, 25px); line-height: 1.1; font-variant-numeric: tabular-nums; }
.landing-live-stats article div > span { margin-top: 4px; color: var(--muted); font-size: 10px; line-height: 1.35; }
.landing-resources { margin-top: 34px; }
.landing-resource-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.landing-resource-card { display: flex; min-width: 0; min-height: 190px; flex-direction: column; align-items: flex-start; padding: 14px; border: 1px solid #e2e8f3; border-radius: 15px; background: linear-gradient(150deg, #fff, #f9faff); color: var(--ink); box-shadow: 0 8px 22px rgba(31,45,85,.045); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.landing-resource-card:hover { transform: translateY(-3px); border-color: #bdcaf0; box-shadow: 0 13px 27px rgba(31,45,85,.09); text-decoration: none; }
.landing-resource-card:focus-visible { outline: 3px solid #8098ed; outline-offset: 3px; }
.landing-resource-icon { display: grid; width: 36px; height: 36px; margin-bottom: 12px; place-items: center; border-radius: 11px; background: var(--landing-accent-soft); color: var(--landing-accent); font-size: 18px; font-weight: 850; }
.landing-resource-label { margin-bottom: 5px; color: #75809a; font-size: 9px; font-weight: 850; letter-spacing: .09em; }
.landing-resource-card > strong { font-size: 14px; line-height: 1.3; }
.landing-resource-description { display: -webkit-box; margin-top: 6px; overflow: hidden; color: var(--muted); font-size: 11px; line-height: 1.45; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.landing-resource-link { display: flex; justify-content: space-between; align-items: center; gap: 8px; width: 100%; margin-top: auto; padding-top: 12px; color: var(--landing-accent); font-size: 10px; font-weight: 750; }
.landing-resource-link > span { font-size: 16px; transition: transform .18s ease; }
.landing-resource-card:hover .landing-resource-link > span { transform: translateX(3px); }
.student-progress-card { margin: 16px 0; padding: 16px; border: 1px solid #dcebe7; border-radius: 17px; background: linear-gradient(135deg, #fff, #f2fbf8); box-shadow: var(--shadow); }
.student-progress-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.student-progress-heading .eyebrow { margin-bottom: 5px; color: #16806e; }
.student-progress-heading h2 { margin-bottom: 12px; }
.student-progress-heading > a { flex: 0 0 auto; padding-top: 3px; font-size: 12px; font-weight: 700; }
.student-progress-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.student-progress-summary article { min-width: 0; padding: 10px; border: 1px solid #e5efec; border-radius: 11px; background: rgba(255,255,255,.8); }
.student-progress-summary article span, .student-progress-summary article strong { display: block; }
.student-progress-summary article span { min-height: 28px; color: var(--muted); font-size: 10px; line-height: 1.35; }
.student-progress-summary article strong { margin-top: 4px; color: #126a64; font-size: clamp(18px, 4vw, 25px); font-variant-numeric: tabular-nums; }
.student-badge-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-top: 12px; }
.student-badge { display: flex; min-width: 0; flex-direction: column; align-items: center; gap: 4px; padding: 10px 5px; border: 1px solid #e8ecef; border-radius: 12px; background: #fff; text-align: center; }
.student-badge > span { display: grid; width: 29px; height: 29px; place-items: center; border-radius: 50%; background: #edf0f3; color: #87909f; font-size: 15px; font-weight: 850; }
.student-badge strong { font-size: 10px; line-height: 1.25; }
.student-badge small { font-size: 9px; line-height: 1.3; }
.student-badge.is-earned { border-color: #c9e9dc; background: #f6fcf9; }
.student-badge.is-earned > span { background: #dff5ea; color: #16805b; }
.student-badge.is-locked { opacity: .68; }
.student-next-milestone { margin-top: 12px; }
.student-next-milestone p { margin: 0 0 7px; color: #475467; font-size: 11px; line-height: 1.45; }
.student-milestone-track { height: 7px; overflow: hidden; border-radius: 999px; background: #e3eee9; }
.student-milestone-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #16a078, #72c7a7); transition: width .25s ease; }
.student-progress-note { margin: 9px 0 0; color: var(--muted); font-size: 10px; }
.student-progress-error { margin-top: 16px; }

@media (min-width: 720px) {
    .landing-container { margin-top: 42px; margin-bottom: 48px; }
    .landing-hero { grid-template-columns: minmax(0, 1.35fr) minmax(310px, .85fr); gap: 34px; padding: 48px; }
    .landing-photo-slider { height: 300px; margin-top: 26px; border-radius: 22px; }
    .landing-photo-slider.landing-header-slider { height: 310px; margin: 0; border-radius: 0; }
    .landing-slider-track { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 14px 16px 56px; }
    .landing-slide, .landing-slide.is-active { position: relative; inset: auto; display: none; min-width: 0; border: 1px solid rgba(255,255,255,.2); border-radius: 13px; visibility: visible; opacity: 0; }
    .landing-slide.is-visible { display: block; opacity: 1; }
    .landing-slide img { object-fit: contain; }
    .landing-slide-caption { right: 12px; bottom: 12px; left: 12px; }
    .landing-slide-caption h2 { font-size: clamp(14px, 1.6vw, 20px); }
    .landing-slide-caption p { font-size: 11px; }
    .landing-slider-controls { right: 20px; bottom: 18px; left: 20px; }
    .landing-preview { padding: 10px 8px 0; }
    .landing-preview-card { padding: 18px; }
    .landing-preview-label { font-size: 10px; }
    .landing-preview-timer { padding: 6px 9px; font-size: 11px; }
    .landing-preview-progress { margin: 20px 0 18px; }
    .landing-preview-question { gap: 9px; }
    .landing-question-type { font-size: 9px; }
    .landing-preview-question > strong { font-size: 14px; }
    .landing-preview-option { padding: 8px; font-size: 10px; }
    .landing-preview-bottom { font-size: 10px; }
    .landing-preview-bottom strong { font-size: 10px; }
    .landing-quick-points { grid-template-columns: repeat(2, minmax(0, max-content)); column-gap: 14px; }
    .landing-steps-section { margin-top: 48px; }
    .landing-resources { margin-top: 48px; }
    .landing-resource-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
    .landing-resource-card { min-height: 205px; padding: 18px; }
    .landing-resource-card > strong { font-size: 16px; }
    .landing-resource-description { font-size: 12px; }
    .landing-live-stats { gap: 14px; margin-top: 28px; }
    .landing-live-stats article { flex-direction: row; align-items: center; gap: 12px; padding: 16px; }
    .landing-live-stat-icon { flex: 0 0 34px; width: 34px; height: 34px; border-radius: 10px; font-size: 16px; }
    .landing-live-stats article div > span { font-size: 11px; }
    .student-progress-card { padding: 22px; }
    .student-progress-summary { gap: 12px; }
    .student-badge-row { gap: 12px; }
    .landing-features { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 0; }
    .landing-feature { padding: 21px; }
    .landing-feature { min-height: 185px; }
    .landing-next-step { flex-direction: row; align-items: center; justify-content: space-between; gap: 20px; margin-top: 20px; padding: 20px 24px; }
    .landing-next-step .button { align-self: auto; }
}

@media (min-width: 1100px) {
    .landing-photo-slider.landing-header-slider { height: 340px; }
    .landing-slider-track { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 16px 22px 58px; }
    .landing-slide, .landing-slide.is-active { border-radius: 15px; }
    .landing-slide-caption { right: 16px; bottom: 16px; left: 16px; }
    .landing-slide-caption h2 { font-size: 19px; }
    .landing-slide-caption p { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    .landing-feature, .landing-primary-action span, .landing-slide, .landing-slider-dot, .landing-resource-card, .landing-resource-link > span { transition: none; }
}

@media (min-width: 720px) {
    .analysis-results-table { display: table; min-width: 570px; }
    .analysis-results-table thead { display: table-header-group; }
    .analysis-results-table tbody { display: table-row-group; }
    .analysis-results-table tr { display: table-row; padding: 0; border: 0; border-radius: 0; background: transparent; }
    .analysis-results-table td { display: table-cell; padding: 13px 12px; border-bottom: 1px solid var(--line); overflow-wrap: normal; }
    .analysis-results-table td:first-child { display: table-cell; padding-top: 13px; font-weight: 400; }
    .analysis-results-table td:not(:first-child)::before { content: none; }
    .analysis-results-table th:last-child, .analysis-results-table td:last-child { white-space: nowrap; }
}

@media (min-width: 560px) {
    .topbar { min-height: 70px; padding: 12px 22px; gap: 18px; }
    .brand { gap: 11px; font-size: 16px; }
    .brand-mark { flex-basis: 42px; width: 42px; height: 42px; }
    .user-menu { gap: 8px 16px; font-size: 12px; }
    .student-avatar { flex-basis: 40px; width: 40px; height: 40px; }
    .container { width: calc(100% - 40px); margin-top: 26px; }
    .hero { flex-direction: row; align-items: center; gap: 24px; padding: 28px; border-radius: 20px; }
    .card { padding: 20px; }
    .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
    .quick-grid, .package-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
    .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
    .full { grid-column: 1 / -1; }
    .question-form { padding: 22px; }
    .question-type-fields { padding: 18px; }
    .builder-heading { flex-direction: row; align-items: center; gap: 16px; }
    .option-row { grid-template-columns: 38px minmax(0,1fr) auto 38px; align-items: center; gap: 10px; }
    .correct-choice { grid-column: auto; grid-row: auto; }
    .icon-button { grid-column: auto; grid-row: auto; }
    .pair-row { grid-template-columns: 34px minmax(0,1fr) auto minmax(0,1fr) 36px; gap: 10px; }
    .pair-arrow { grid-column: auto; text-align: center; }
    .pair-row input[data-pair-right] { grid-column: auto; }
    .pair-row .icon-button { grid-column: auto; grid-row: auto; }
    .two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
    .section-heading { flex-direction: row; align-items: flex-end; gap: 18px; margin: 28px 0 15px; }
    .exam-header { flex-direction: row; align-items: center; gap: 18px; margin: 10px 0 20px; }
    .exam-header-tools { justify-content: flex-end; width: auto; gap: 12px; }
    .question-nav { grid-template-columns: repeat(10, minmax(32px, 1fr)); max-height: 94px; }
    .exam-card { padding: 24px; }
    .answer-options, .matching-list { gap: 10px; padding: 16px; }
    .answer-option { gap: 12px; padding: 13px 14px; }
    .matching-row { grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1.4fr); align-items: center; gap: 12px; }
    .matching-arrow { display: block; }
    .exam-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 17px; }
    .exam-actions .primary { grid-column: auto; grid-row: auto; width: auto; }
    .exam-actions .button { width: auto; }
}

@media (min-width: 900px) {
    .topbar { padding-right: max(24px, calc((100vw - 1180px) / 2)); padding-left: max(24px, calc((100vw - 1180px) / 2)); }
    .container { margin-top: 34px; }
    .hero { padding: 34px; }
    .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
    .quick-grid, .package-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
    .exam-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 18px; }
    .question-nav { position: sticky; top: 12px; grid-template-columns: repeat(5, minmax(32px, 1fr)); max-height: calc(100vh - 24px); padding: 16px; }
    .exam-card { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}