:root {
  --bg: #f7fbfa;
  --surface: #ffffff;
  --surface-2: #eaf6f3;
  --surface-3: #fff7df;
  --text: #12312d;
  --muted: #526d68;
  --primary: #0b6b63;
  --primary-strong: #074d48;
  --primary-soft: #d8f2ed;
  --border: #b9d5cf;
  --shadow: 0 18px 50px rgba(9, 71, 65, .13);
  --danger: #a82632;
  --focus: #ffb300;
  --sun: #f4a900;
  --berry: #b83f73;
  --sky: #2878a8;
  --honey: #9a6500;
  --mint: #167a53;
  --coral: #b84f37;
  --aqua: #087785;
  --violet: #6f4aa4;
  --lime: #527300;
  --teal: #006e6b;
  color-scheme: light;
}
html[data-theme="dark"] {
  --bg: #071f1d;
  --surface: #0f302d;
  --surface-2: #153d39;
  --surface-3: #3c3216;
  --text: #f4fffc;
  --muted: #c2d8d4;
  --primary: #63dccd;
  --primary-strong: #9bf2e7;
  --primary-soft: #174943;
  --border: #35625d;
  --shadow: 0 18px 50px rgba(0, 0, 0, .34);
  --danger: #ff8d98;
  --focus: #ffd66b;
  --sun: #ffd36b;
  --berry: #ff8eb9;
  --sky: #85d3ff;
  --honey: #ffd27a;
  --mint: #75e2ac;
  --coral: #ff9b82;
  --aqua: #72e2ef;
  --violet: #c9a6ff;
  --lime: #b9e06d;
  --teal: #75e5dd;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html.big-text { font-size: 118%; }
html.reduced-motion *, html.reduced-motion *::before, html.reduced-motion *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
body { margin: 0; min-height: 100vh; font-family: Inter, ui-rounded, "Segoe UI", system-ui, sans-serif; background: radial-gradient(circle at 10% 0%, rgba(97, 220, 205, .12), transparent 28rem), var(--bg); color: var(--text); line-height: 1.55; }
a { color: var(--primary-strong); font-weight: 750; text-decoration-thickness: .1em; text-underline-offset: .2em; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 4px solid var(--focus); outline-offset: 3px; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { margin: 0 0 .7rem; font-size: clamp(2.2rem, 5vw, 4.6rem); line-height: 1.02; letter-spacing: -.045em; }
h2 { margin: 0 0 .65rem; font-size: clamp(1.45rem, 2.7vw, 2.2rem); line-height: 1.12; }
h3 { margin: 0 0 .5rem; font-size: 1.25rem; line-height: 1.2; }
p { margin: 0 0 1rem; }
small, .tiny { color: var(--muted); }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 999; background: var(--surface); color: var(--text); padding: .8rem 1rem; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 100; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .75rem clamp(1rem, 3vw, 2.5rem); background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--text); text-decoration: none; min-width: 250px; }
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 15px; background: linear-gradient(145deg, var(--primary), var(--sky)); color: #fff; font-size: 1.4rem; box-shadow: var(--shadow); }
.brand span:last-child { display: grid; line-height: 1.05; }
.brand small { margin-top: .2rem; font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.primary-nav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: .25rem; }
.primary-nav > a, .link-button, .theme-toggle { color: var(--text); text-decoration: none; border: 0; background: transparent; padding: .62rem .72rem; border-radius: 11px; font-weight: 800; cursor: pointer; }
.primary-nav > a:hover, .link-button:hover, .theme-toggle:hover { background: var(--surface-2); }
.inline-form { display: inline; margin: 0; }
.nav-toggle { display: none; }
.supervision-banner { padding: .55rem 1rem; text-align: center; background: #ffefb0; color: #4a3200; border-bottom: 1px solid #d9bd52; font-size: .92rem; }
html[data-theme="dark"] .supervision-banner { background: #4c3a09; color: #fff3ba; border-color: #806313; }
.page-shell { width: min(1480px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(1.25rem, 3vw, 3rem) 0 4rem; min-height: calc(100vh - 180px); }
.site-footer { padding: 2rem 1rem 3rem; text-align: center; color: var(--muted); border-top: 1px solid var(--border); background: var(--surface); }
.site-footer p { margin: .2rem; }
.eyebrow { color: var(--primary-strong); font-weight: 900; letter-spacing: .1em; text-transform: uppercase; font-size: .78rem; margin-bottom: .7rem; }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--muted); max-width: 60ch; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .7rem 1rem; border-radius: 14px; border: 2px solid transparent; font-weight: 900; text-decoration: none; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; text-align: center; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: #fff; background: var(--primary-strong); box-shadow: 0 8px 20px rgba(4, 74, 67, .2); }
html[data-theme="dark"] .btn.primary { color: #06221f; }
.btn.secondary { color: var(--primary-strong); background: var(--surface); border-color: var(--primary); }
.btn.danger { color: #fff; background: var(--danger); }
.btn.small { min-height: 38px; padding: .5rem .8rem; font-size: .9rem; border-radius: 11px; }
.btn.large { min-height: 52px; padding: .9rem 1.25rem; }
.btn.wide { width: 100%; }
.button-row { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; margin-top: 1.2rem; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: clamp(1.1rem, 2.5vw, 2rem); box-shadow: var(--shadow); }
.flash-stack { position: relative; z-index: 5; display: grid; gap: .5rem; margin-bottom: 1rem; }
.flash { padding: .8rem 1rem; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); font-weight: 750; }
.flash.success { border-color: #42a074; background: color-mix(in srgb, #64d29b 22%, var(--surface)); }
.flash.error { border-color: #cf5c67; background: color-mix(in srgb, #ff8994 18%, var(--surface)); }
.auth-page { width: min(1280px, calc(100% - 2rem)); }
.auth-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(400px, .9fr); gap: clamp(1rem, 3vw, 2.5rem); align-items: stretch; }
.auth-layout.reverse .auth-visual { order: 2; }
.auth-visual { position: relative; min-height: 680px; border-radius: 32px; overflow: hidden; box-shadow: var(--shadow); }
.auth-visual img { width: 100%; height: 100%; object-fit: cover; }
.auth-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(3, 36, 33, .78)); }
.auth-badge { position: absolute; z-index: 2; left: 1.25rem; right: 1.25rem; bottom: 1.25rem; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: .25rem .7rem; color: #fff; background: rgba(6, 65, 59, .82); border: 1px solid rgba(255,255,255,.36); backdrop-filter: blur(12px); border-radius: 20px; padding: 1rem 1.15rem; }
.auth-badge > span { grid-row: span 2; font-size: 2rem; }
.auth-badge strong { font-size: 1.12rem; }
.auth-badge small { color: #e8fffb; }
.auth-card { align-self: center; background: var(--surface); border: 1px solid var(--border); border-radius: 32px; padding: clamp(1.5rem, 4vw, 3.25rem); box-shadow: var(--shadow); }
.auth-card h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.auth-card.large { align-self: stretch; }
.stack-form { display: grid; gap: 1rem; margin: 1.4rem 0; }
.stack-form.two-column, .two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
label { display: grid; gap: .42rem; font-weight: 850; color: var(--text); }
input, select, textarea { width: 100%; min-height: 48px; border: 2px solid var(--border); border-radius: 13px; padding: .7rem .85rem; background: var(--surface); color: var(--text); }
textarea { resize: vertical; min-height: 100px; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); outline: 3px solid color-mix(in srgb, var(--primary) 30%, transparent); }
label small { font-weight: 600; }
.check-row { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: .65rem; font-weight: 700; }
.check-row input { width: 1.25rem; height: 1.25rem; min-height: auto; margin-top: .15rem; }
.check-row.important { padding: .8rem; background: var(--surface-3); border: 1px solid color-mix(in srgb, var(--sun) 60%, var(--border)); border-radius: 13px; }
.auth-actions { display: flex; flex-wrap: wrap; gap: .85rem; align-items: center; margin-top: 1rem; }
.safety-card { display: grid; gap: .2rem; padding: 1rem; background: var(--surface-3); border: 1px solid color-mix(in srgb, var(--sun) 65%, var(--border)); border-radius: 15px; margin-top: 1.2rem; }
.safety-card.compact { margin: 0; padding: .8rem; }
.center { text-align: center; }
.narrow-page { width: min(660px, calc(100% - 2rem)); }
.form-panel { text-align: center; }
.form-panel .stack-form { text-align: left; }
.icon-orb, .mascot-orb { display: grid; place-items: center; width: 82px; height: 82px; margin: 0 auto 1rem; border-radius: 26px; background: linear-gradient(145deg, var(--primary-soft), var(--surface-3)); font-size: 2.2rem; border: 1px solid var(--border); }
.dev-note { padding: .8rem; border: 1px dashed var(--primary); border-radius: 12px; margin: 1rem 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr); gap: clamp(1.2rem, 4vw, 4rem); align-items: center; margin-bottom: 4rem; }
.hero-copy { padding: clamp(.5rem, 3vw, 2rem); }
.hero-photo { position: relative; min-height: 520px; border-radius: 34px 34px 90px 34px; overflow: hidden; box-shadow: var(--shadow); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.floating-note { position: absolute; left: 1.2rem; bottom: 1.2rem; display: grid; padding: .85rem 1rem; color: #fff; background: rgba(4, 64, 58, .86); border: 1px solid rgba(255,255,255,.35); border-radius: 16px; backdrop-filter: blur(10px); }
.stats-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; margin-top: 1.5rem; }
.stats-row > div { padding: 1rem; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); }
.stats-row strong { display: block; font-size: 1.8rem; color: var(--primary-strong); }
.stats-row span { color: var(--muted); font-weight: 700; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(280px, .7fr); gap: 2rem; align-items: end; margin: 2rem 0 1.25rem; }
.section-heading p { color: var(--muted); }
.module-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.module-card { position: relative; display: grid; grid-template-rows: 210px 1fr; overflow: hidden; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); }
.module-card img { width: 100%; height: 100%; object-fit: cover; }
.module-card-body { position: relative; padding: 1.2rem; }
.module-icon { display: grid; place-items: center; width: 48px; height: 48px; margin-top: -2.8rem; margin-bottom: .7rem; border-radius: 15px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); font-size: 1.45rem; }
.module-card p { color: var(--muted); min-height: 4.7em; }
.progress-line { height: 9px; overflow: hidden; background: var(--surface-2); border: 1px solid var(--border); border-radius: 99px; }
.progress-line span { display: block; height: 100%; background: var(--primary); border-radius: inherit; }
.card-meta { display: flex; justify-content: space-between; gap: .6rem; flex-wrap: wrap; color: var(--muted); font-size: .85rem; font-weight: 750; margin: .5rem 0 .8rem; }
.premium-strip { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: .8rem; margin-top: 2rem; }
.premium-strip > div { display: grid; grid-template-columns: auto 1fr; gap: .15rem .7rem; align-items: center; background: var(--surface-2); border: 1px solid var(--border); border-radius: 18px; padding: 1rem; }
.premium-strip span { grid-row: span 2; font-size: 1.6rem; }
.premium-strip small { line-height: 1.25; }
.page-hero, .lesson-hero, .guide-hero, .certificate-hero, .detail-header { background: var(--surface); border: 1px solid var(--border); border-radius: 28px; box-shadow: var(--shadow); overflow: hidden; }
.compact-hero { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: clamp(1.2rem, 3vw, 2.3rem); margin-bottom: 1.5rem; }
.compact-hero h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
.compact-hero p { color: var(--muted); max-width: 75ch; }
.timeline { display: grid; gap: 1rem; }
.timeline-card { position: relative; display: grid; grid-template-columns: 60px 220px 1fr auto; gap: 1rem; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 1rem; box-shadow: var(--shadow); }
.timeline-card img { width: 220px; height: 150px; object-fit: cover; border-radius: 16px; }
.timeline-number { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 18px; color: #fff; background: var(--primary-strong); font-size: 1.4rem; font-weight: 900; }
html[data-theme="dark"] .timeline-number { color: #082522; }
.time-chip { align-self: start; white-space: nowrap; padding: .4rem .7rem; border-radius: 99px; background: var(--primary-soft); color: var(--primary-strong); font-weight: 850; }
.screen-break { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; margin-top: 1.2rem; padding: 1.2rem; border-radius: 22px; background: var(--surface-3); border: 1px solid var(--border); }
.screen-break > div:first-child { font-size: 2.5rem; }
.lesson-hero { display: grid; grid-template-columns: minmax(330px, .85fr) 1.15fr; align-items: stretch; margin-bottom: 1.2rem; }
.lesson-hero > img { width: 100%; height: 360px; object-fit: cover; }
.lesson-hero > div { display: flex; flex-direction: column; justify-content: center; padding: clamp(1.2rem, 3vw, 2.5rem); }
.lesson-hero h1 { font-size: clamp(2.2rem, 4vw, 3.7rem); }
.audio-bar { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .9rem; }
.btn.audio { min-height: 40px; padding: .5rem .72rem; border-radius: 12px; color: var(--text); background: var(--surface); border-color: var(--border); }
.btn.audio.read { color: #fff; background: var(--primary-strong); border-color: var(--primary-strong); }
html[data-theme="dark"] .btn.audio.read { color: #082522; }
.lesson-layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 1.2rem; align-items: start; }
.activity-list { position: sticky; top: 135px; }
.activity-link { display: grid; grid-template-columns: 34px 1fr; gap: .65rem; align-items: center; padding: .7rem; margin: .35rem 0; color: var(--text); text-decoration: none; border-radius: 13px; }
.activity-link span { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: var(--surface-2); }
.activity-link:hover, .activity-link.active { background: var(--primary-soft); color: var(--primary-strong); }
.guardian-tip { margin-top: 1rem; padding: .85rem; border-radius: 15px; background: var(--surface-3); border: 1px solid var(--border); }
.question-card { padding: clamp(1.2rem, 4vw, 3rem); }
.question-top { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.question-badge { display: inline-block; padding: .35rem .7rem; border-radius: 99px; background: var(--primary-soft); color: var(--primary-strong); font-weight: 900; }
.listening-status { color: var(--berry); font-weight: 900; }
.question-card h2 { margin-top: 1.3rem; font-size: clamp(1.7rem, 3.5vw, 3rem); line-height: 1.16; }
.voice-row { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; margin: 1.2rem 0; padding: .8rem; border: 1px dashed var(--primary); border-radius: 15px; }
.btn.voice { color: #fff; background: var(--berry); }
.voice-row span { color: var(--muted); max-width: 52ch; }
.choice-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: .8rem; margin: 1.2rem 0; }
.choice-button { min-height: 82px; padding: 1rem; border-radius: 18px; border: 2px solid var(--border); background: var(--surface); color: var(--text); font-size: 1.06rem; font-weight: 900; cursor: pointer; }
.choice-button:hover, .choice-button.selected { border-color: var(--primary); background: var(--primary-soft); color: var(--primary-strong); }
.answer-form { display: grid; grid-template-columns: 1fr auto; gap: .75rem; align-items: end; }
.answer-result { display: grid; grid-template-columns: auto 1fr; gap: .8rem; margin-top: 1.2rem; padding: 1rem; border-radius: 18px; border: 2px solid var(--border); background: var(--surface-2); }
.answer-result.correct { border-color: #3ca873; }
.answer-result.try-again { border-color: var(--sun); }
.result-icon { font-size: 2rem; }
.screen-free-box { display: grid; grid-template-columns: auto 1fr; gap: .8rem; margin-top: 1.2rem; padding: 1rem; background: var(--surface-3); border-radius: 18px; border: 1px solid var(--border); }
.screen-free-box > span { font-size: 2rem; }
.cases-hero { background: linear-gradient(135deg, var(--surface), var(--primary-soft)); }
.case-count { display: grid; place-items: center; flex: 0 0 170px; min-height: 135px; border-radius: 28px; background: var(--primary-strong); color: #fff; }
html[data-theme="dark"] .case-count { color: #082522; }
.case-count strong { font-size: 2.5rem; line-height: 1; }
.case-count span { font-weight: 850; }
.filter-bar { display: grid; grid-template-columns: 1.5fr 1fr 1fr auto auto; gap: .75rem; align-items: end; padding: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); }
.results-line { color: var(--muted); font-weight: 750; margin: 1rem .25rem; }
.case-grid, .plan-grid, .certificate-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.case-card, .plan-card, .certificate-card { display: flex; flex-direction: column; min-height: 100%; padding: 1.15rem; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); }
.case-card p, .plan-card p { color: var(--muted); }
.case-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .8rem; }
.case-tags span { padding: .3rem .55rem; border-radius: 99px; background: var(--primary-soft); color: var(--primary-strong); font-size: .78rem; font-weight: 900; }
.card-actions { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: auto; }
.card-actions form { margin: 0; }
.pagination { display: flex; justify-content: center; align-items: center; gap: .8rem; margin-top: 1.5rem; }
.detail-header { display: grid; grid-template-columns: 1.2fr .8fr; margin-bottom: 1.2rem; }
.detail-header > div { padding: clamp(1.2rem, 3vw, 2.5rem); }
.detail-header img { width: 100%; height: 100%; min-height: 330px; object-fit: cover; }
.detail-grid, .parent-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.pretty-list { padding-left: 1.35rem; }
.pretty-list li { margin-bottom: .65rem; }
.safety-panel { background: var(--surface-3); }
.plan-grid .full { grid-column: 1/-1; }
.plan-editor { max-width: 1000px; margin: 0 auto; }
.plan-editor > label { margin-bottom: 1rem; }
.readonly-field { min-height: 48px; padding: .75rem; border-radius: 13px; background: var(--surface-2); border: 1px solid var(--border); }
.certificate-hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; align-items: center; padding: clamp(1.2rem, 3vw, 2.5rem); margin-bottom: 1.2rem; }
.certificate-preview { min-height: 240px; display: grid; place-items: center; align-content: center; gap: .45rem; text-align: center; background: linear-gradient(145deg, #fff9df, #e1fff9); color: #173b35; border: 10px double #c39419; border-radius: 18px; }
.certificate-preview .seal { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 50%; background: #0b6b63; color: #fff; font-weight: 900; }
.certificate-preview strong { font-family: Georgia, serif; font-size: 1.6rem; }
.certificate-card .module-icon { margin-top: 0; }
.parent-hero { display: grid; grid-template-columns: 1fr 320px; }
.parent-hero img { width: 320px; height: 180px; object-fit: cover; border-radius: 20px; }
.parent-grid .span-2 { grid-column: span 2; }
.progress-table { display: grid; gap: .75rem; }
.progress-row { display: grid; grid-template-columns: minmax(220px, .8fr) 1fr minmax(170px, auto); gap: 1rem; align-items: center; }
.progress-row > div:first-child { display: flex; align-items: center; gap: .55rem; }
.setting-list { display: grid; gap: .8rem; }
.switch-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .75rem; border-radius: 13px; background: var(--surface-2); }
.switch-row input { width: 1.3rem; height: 1.3rem; min-height: auto; }
.recent-list { display: grid; gap: .55rem; }
.recent-list > div { display: grid; grid-template-columns: minmax(220px, .6fr) 1fr; gap: 1rem; padding: .7rem; border-radius: 12px; background: var(--surface-2); }
.guide-hero { display: grid; grid-template-columns: .9fr 1.1fr; margin-bottom: 1.2rem; }
.guide-hero img { width: 100%; height: 420px; object-fit: cover; }
.guide-hero > div { padding: clamp(1.2rem, 3vw, 2.5rem); align-self: center; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.guide-step { position: relative; min-height: 190px; padding: 1.3rem 1.3rem 1.3rem 5rem; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); }
.guide-step > span { position: absolute; left: 1.2rem; top: 1.2rem; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 15px; background: var(--primary-strong); color: #fff; font-weight: 900; }
html[data-theme="dark"] .guide-step > span { color: #082522; }
.help-table { margin-top: 1rem; }
.help-table > div { display: grid; grid-template-columns: 210px 1fr; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--border); }
.legal-page { max-width: 980px; margin: 0 auto; }
.empty-state { display: grid; place-items: center; text-align: center; min-height: 360px; padding: 2rem; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; }
.empty-state > div { font-size: 3rem; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
.accent-sun { --card-accent: var(--sun); }.accent-berry { --card-accent: var(--berry); }.accent-sky { --card-accent: var(--sky); }.accent-honey { --card-accent: var(--honey); }.accent-mint { --card-accent: var(--mint); }.accent-coral { --card-accent: var(--coral); }.accent-aqua { --card-accent: var(--aqua); }.accent-violet { --card-accent: var(--violet); }.accent-lime { --card-accent: var(--lime); }.accent-teal { --card-accent: var(--teal); }
.module-card::before, .timeline-card::before, .certificate-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 6px; background: var(--card-accent, var(--primary)); }
@media (max-width: 1180px) {
  .primary-nav { display: none; position: absolute; top: calc(100% + 1px); right: 1rem; width: min(360px, calc(100vw - 2rem)); flex-direction: column; align-items: stretch; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: .7rem; box-shadow: var(--shadow); }
  .primary-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 12px; padding: .6rem .8rem; font-weight: 900; }
  .module-grid, .case-grid, .plan-grid, .certificate-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .filter-bar { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .filter-bar .btn { width: 100%; }
}
@media (max-width: 900px) {
  .auth-layout, .hero-grid, .lesson-hero, .detail-header, .certificate-hero, .guide-hero { grid-template-columns: 1fr; }
  .auth-layout.reverse .auth-visual { order: 0; }
  .auth-visual { min-height: 420px; }
  .hero-photo { min-height: 420px; }
  .lesson-hero > img, .guide-hero img { height: 320px; }
  .lesson-layout { grid-template-columns: 1fr; }
  .activity-list { position: static; }
  .activity-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .35rem; }
  .activity-list h2, .guardian-tip { grid-column: 1/-1; }
  .timeline-card { grid-template-columns: 50px 160px 1fr; }
  .timeline-card img { width: 160px; height: 130px; }
  .time-chip { grid-column: 3; }
  .premium-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .parent-hero { grid-template-columns: 1fr; }
  .parent-hero img { width: 100%; height: 240px; }
  .progress-row { grid-template-columns: 1fr; gap: .35rem; }
}
@media (max-width: 680px) {
  .page-shell { width: min(100% - 1rem, 1480px); padding-top: .7rem; }
  .brand { min-width: 0; }
  .brand small { display: none; }
  .brand-mark { width: 40px; height: 40px; }
  .module-grid, .case-grid, .plan-grid, .certificate-grid, .detail-grid, .parent-grid, .guide-grid, .stack-form.two-column, .two-column, .choice-grid { grid-template-columns: 1fr; }
  .span-2, .parent-grid .span-2 { grid-column: span 1; }
  .stats-row { grid-template-columns: 1fr; }
  .section-heading { grid-template-columns: 1fr; gap: .5rem; }
  .premium-strip { grid-template-columns: 1fr; }
  .timeline-card { grid-template-columns: 46px 1fr; }
  .timeline-card img { grid-column: 1/-1; width: 100%; height: 210px; }
  .time-chip { grid-column: 2; justify-self: start; }
  .screen-break { grid-template-columns: 1fr; text-align: center; }
  .answer-form { grid-template-columns: 1fr; }
  .filter-bar { grid-template-columns: 1fr; }
  .compact-hero { align-items: flex-start; flex-direction: column; }
  .case-count { width: 100%; min-height: 100px; flex-basis: auto; }
  .activity-list { grid-template-columns: 1fr; }
  .question-top { align-items: flex-start; flex-direction: column; }
  .help-table > div, .recent-list > div { grid-template-columns: 1fr; gap: .2rem; }
  .auth-card { padding: 1.2rem; }
  .auth-visual { min-height: 330px; }
  .module-card p { min-height: 0; }
}