:root {
  color-scheme: light;
  --ink: #142935;
  --ink-soft: #38515e;
  --muted: #607783;
  --teal: #087b73;
  --teal-dark: #075b56;
  --teal-soft: #e8f5f3;
  --blue: #315f80;
  --gold: #a98032;
  --surface: #ffffff;
  --surface-soft: #f4f8f8;
  --line: #d8e5e8;
  --shadow: 0 14px 36px rgba(20, 49, 62, 0.08);
  --shadow-strong: 0 24px 60px rgba(20, 49, 62, 0.13);
  --radius: 14px;
  --max: 1220px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #f7faf9; color: var(--ink); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(8, 123, 115, 0.32); outline-offset: 3px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.shell { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.anchor-alias { display: block; position: relative; top: -6rem; height: 0; visibility: hidden; }

.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid rgba(216,229,232,.92); background: rgba(255,255,255,.92); backdrop-filter: blur(16px); }
.header-inner { display: flex; min-height: 74px; width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; align-items: center; gap: 1.2rem; }
.brand { display: inline-flex; min-width: max-content; align-items: center; gap: 0.7rem; text-decoration: none; }
.brand-mark { display: grid; width: 2.55rem; height: 2.55rem; place-items: center; border-radius: 9px; background: linear-gradient(135deg, var(--teal-dark), var(--blue)); color: #fff; font-weight: 900; }
.brand-copy strong, .brand-copy small { display: block; }
.brand-copy strong { letter-spacing: -0.02em; }
.brand-copy small { margin-top: 0.08rem; color: var(--muted); font-size: 0.72rem; }
.primary-nav { display: flex; margin-left: auto; align-items: center; gap: 0.1rem; }
.primary-nav a, .text-link { border-radius: 7px; color: #415762; font-size: 0.86rem; font-weight: 720; padding: 0.55rem 0.64rem; text-decoration: none; }
.primary-nav a:hover, .text-link:hover { background: var(--teal-soft); color: var(--teal-dark); }
.menu-toggle { display: none; margin-left: auto; border: 0; background: transparent; cursor: pointer; padding: 0.55rem; }
.menu-toggle > span:not(.sr-only) { display: block; width: 1.35rem; height: 2px; margin: 4px 0; background: var(--ink); }

.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; border: 1px solid var(--teal); border-radius: 9px; background: var(--teal); color: #fff; font-weight: 820; padding: 0.72rem 1.05rem; text-decoration: none; box-shadow: 0 10px 22px rgba(8,123,115,.18); transition: transform 150ms ease, background-color 150ms ease, box-shadow 150ms ease; }
.button:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 13px 26px rgba(8,123,115,.22); }
.button--small { min-height: 2.55rem; padding: 0.52rem 0.78rem; font-size: 0.86rem; }
.button--secondary { border-color: rgba(8,123,115,.28); background: #fff; color: var(--teal-dark); box-shadow: none; }
.button--secondary:hover { background: var(--teal-soft); box-shadow: none; }
.button--light { border-color: #fff; background: #fff; color: var(--teal-dark); box-shadow: none; }
.button--full { width: 100%; }

main { overflow: hidden; }
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(20rem, .75fr); gap: clamp(1.4rem, 4vw, 4rem); align-items: center; padding-block: clamp(4rem, 8vw, 7.2rem); }
.hero-copy { max-width: 48rem; }
.eyebrow { display: flex; align-items: center; gap: 0.55rem; margin: 0 0 0.7rem; color: var(--teal-dark); font-size: 0.72rem; font-weight: 850; letter-spacing: .115em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 1.4rem; height: 2px; border-radius: 2px; background: currentColor; opacity: .7; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 13ch; margin-bottom: 1.25rem; font-size: clamp(3rem, 6.5vw, 5.7rem); letter-spacing: -.055em; line-height: .97; text-wrap: balance; }
h2 { margin-bottom: 0.7rem; font-size: clamp(2rem, 4vw, 3.25rem); letter-spacing: -.04em; line-height: 1.05; text-wrap: balance; }
h3 { letter-spacing: -.02em; }
.hero-lead { max-width: 43rem; margin-bottom: 1.6rem; color: var(--ink-soft); font-size: clamp(1.05rem, 2vw, 1.27rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.feature-list { display: flex; flex-wrap: wrap; gap: 0.55rem 1.25rem; margin: 1.5rem 0 0; padding: 0; color: #4d6671; font-size: .86rem; font-weight: 720; list-style: none; }
.feature-list li::before { content: "✓"; margin-right: .38rem; color: var(--teal); font-weight: 900; }
.feature-list--path { gap: .55rem; }
.feature-list--path li { display: inline-flex; align-items: center; gap: .38rem; border: 1px solid var(--line); border-radius: 999px; background: #fff; padding: .42rem .62rem; }
.feature-list--path li::before { content: none; }
.feature-list--path li > span { display: inline-grid; min-width: 1.25rem; color: var(--teal); place-items: center; }

.start-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: clamp(1.25rem, 3vw, 2rem); box-shadow: var(--shadow-strong); }
.start-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; background: linear-gradient(90deg, var(--teal), var(--blue), var(--gold)); }
.card-kicker, .topic-label, .question-type { color: var(--teal-dark); font-size: .7rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.start-card h2 { margin-top: .5rem; font-size: clamp(1.75rem, 3vw, 2.35rem); }
.start-card > p { color: var(--muted); line-height: 1.55; }
.session-list { display: grid; gap: .65rem; margin: 1.25rem 0; padding: 0; list-style: none; }
.session-list li { display: grid; grid-template-columns: 2.35rem 1fr; gap: .75rem; align-items: center; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); padding: .78rem; }
.session-list li > span, .action-icon { display: grid; width: 2.15rem; height: 2.15rem; place-items: center; border-radius: 8px; background: var(--teal-soft); color: var(--teal-dark); font-size: .72rem; font-weight: 900; }
.session-list strong, .session-list small { display: block; }
.session-list small { margin-top: .1rem; color: var(--muted); }
.quiet-note { margin: .8rem 0 0; font-size: .8rem; }
.visual-path { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: .45rem; align-items: center; margin: 1.4rem 0 1rem; }
.visual-step { display: grid; min-width: 0; justify-items: center; gap: .3rem; border-radius: 9px; color: var(--ink); padding: .65rem .2rem; text-align: center; }
.visual-path__icon, .method-icon { display: grid; width: 3.35rem; height: 3.35rem; place-items: center; border: 1px solid rgba(8,123,115,.22); border-radius: 12px; background: var(--teal-soft); color: var(--teal-dark); }
.visual-path__icon svg, .method-icon svg { width: 1.65rem; height: 1.65rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.visual-path strong, .visual-path small { display: block; }
.visual-path strong { font-size: .84rem; }
.visual-path small { color: var(--muted); font-size: .68rem; }
.path-arrow { color: #91a6ae; font-weight: 900; }
.start-card__action { display: flex; min-height: 3rem; align-items: center; justify-content: space-between; border-radius: 9px; background: var(--ink); color: #fff; font-weight: 850; padding: 0 .9rem; text-decoration: none; }
.start-card__action:hover { background: var(--teal-dark); }
.progress-line { overflow: hidden; height: .55rem; margin: 1.3rem 0; border-radius: 999px; background: #e5edef; }
.progress-line span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--teal), #4fb8ae); }
.continue-meta { display: grid; grid-template-columns: repeat(2, 1fr); gap: .65rem; margin-bottom: 1.15rem; }
.continue-meta span { border: 1px solid var(--line); border-radius: 9px; padding: .75rem; color: var(--muted); font-size: .77rem; }
.continue-meta strong { display: block; margin-bottom: .15rem; color: var(--ink); font-size: 1.25rem; }

.student-plan { padding-bottom: 4.5rem; }
.section-heading { max-width: 50rem; }
.section-heading > p:last-child, .section-heading--split > div > p:last-child { color: var(--muted); line-height: 1.6; }
.section-heading--split { display: flex; max-width: none; align-items: end; justify-content: space-between; gap: 1.5rem; }
.action-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.3rem; }
.action-card { display: grid; grid-template-columns: auto 1fr; gap: .8rem; border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 1.15rem; box-shadow: 0 8px 24px rgba(20,49,62,.055); }
.action-card--primary { border-color: rgba(8,123,115,.35); background: linear-gradient(135deg, #fff, var(--teal-soft)); }
.action-card small, .action-card p { color: var(--muted); }
.action-card h3 { margin: .18rem 0 .28rem; }
.action-card p { margin-bottom: .8rem; font-size: .85rem; }
.action-card a { grid-column: 2; color: var(--teal-dark); font-weight: 850; text-decoration: none; }

.daily-wrap { display: grid; grid-template-columns: minmax(15rem, .62fr) minmax(0, 1.38fr); gap: clamp(1.5rem, 5vw, 5rem); align-items: center; padding-block: clamp(4rem, 7vw, 6.5rem); }
.daily-copy > p:not(.eyebrow) { color: var(--muted); font-size: 1.03rem; line-height: 1.65; }
.daily-benefits { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.daily-benefits span { border: 1px solid var(--line); border-radius: 999px; background: #fff; color: #49636e; font-size: .75rem; font-weight: 760; padding: .45rem .65rem; }
.daily-benefits b { display: inline-grid; min-width: 1.15rem; margin-right: .15rem; color: var(--teal); place-items: center; }
.daily-card { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: clamp(1.25rem, 3.4vw, 2.35rem); box-shadow: var(--shadow-strong); }
.daily-card__header, .daily-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.daily-card__header > div { display: flex; align-items: center; gap: .75rem; }
.daily-card time { color: var(--muted); font-size: .78rem; }
.question-type { border: 1px solid rgba(8,123,115,.22); border-radius: 999px; background: var(--teal-soft); padding: .45rem .65rem; }
.daily-card h3 { max-width: 36ch; margin: 1.55rem 0 1.25rem; font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.35; }
.answer-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: .65rem; }
.answer-actions button { min-height: 3.1rem; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); cursor: pointer; font-weight: 850; }
.answer-actions button:hover { border-color: var(--teal); background: var(--teal-soft); }
.answer-actions button.is-selected { border-color: var(--teal); background: var(--teal); color: #fff; }
.answer-actions button.is-wrong { border-color: #b25c5c; background: #fff1f1; color: #873f3f; }
.answer-prompt { margin: .7rem 0 0; color: var(--muted); font-size: .78rem; }
.answer-feedback { margin-top: 1rem; border: 1px solid rgba(8,123,115,.25); border-radius: 10px; background: #f0faf8; padding: 1rem; }
.answer-feedback > strong { color: var(--teal-dark); }
.answer-feedback p { margin: .55rem 0 0; color: #385660; line-height: 1.55; }
.formula { margin-top: .7rem; border-radius: 7px; background: #fff; color: var(--ink); font-family: "SFMono-Regular", Consolas, monospace; font-size: .84rem; padding: .75rem; }
.exam-trap { border-top: 1px solid rgba(8,123,115,.16); padding-top: .7rem; }
.daily-card__footer { margin-top: 1.25rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.daily-card__footer a { color: var(--teal-dark); font-size: .82rem; font-weight: 820; text-decoration: none; }

.course-facts { display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.course-facts div { padding: 1.35rem; text-align: center; }
.course-facts div + div { border-left: 1px solid var(--line); }
.course-facts strong, .course-facts span { display: block; }
.course-facts strong { font-size: 1.9rem; letter-spacing: -.04em; }
.course-facts span { margin-top: .15rem; color: var(--muted); font-size: .78rem; font-weight: 720; }

.section { padding-block: clamp(4rem, 7vw, 6.4rem); }
.curriculum-search input { width: min(23rem, 80vw); min-height: 3.1rem; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); padding: 0 .9rem; }
.curriculum-search input:focus { border-color: var(--teal); outline: 3px solid rgba(8,123,115,.13); }
.results-copy { margin: 1.35rem 0 .7rem; color: var(--muted); font-size: .8rem; }
.part-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .85rem; }
.part-card { display: flex; min-height: 12.5rem; flex-direction: column; border: 1px solid var(--line); border-radius: 11px; background: #fff; padding: 1rem; transition: border-color 150ms ease, transform 150ms ease, box-shadow 150ms ease; }
.part-card:hover { border-color: rgba(8,123,115,.36); transform: translateY(-2px); box-shadow: var(--shadow); }
.part-card.is-filtered { display: none; }
.part-card > div, .part-card footer { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.part-card > div span, .part-card > div em { color: var(--teal-dark); font-size: .7rem; font-style: normal; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.part-card > div em { color: var(--muted); }
.part-card > div .part-symbol { display: grid; width: 2.45rem; height: 2.45rem; place-items: center; border-radius: 9px; background: var(--teal-soft); color: var(--teal-dark); font-size: 1.05rem; letter-spacing: 0; text-transform: none; }
.part-card > div .part-symbol--blue { background: #eaf1f7; color: var(--blue); }
.part-card > div .part-symbol--gold { background: #f8f1e3; color: #785c25; }
.part-card h3 { margin: 1rem 0 .55rem; font-size: 1.14rem; }
.part-card p { flex: 1; color: var(--muted); font-size: .76rem; font-weight: 760; letter-spacing: .06em; text-transform: uppercase; }
.part-card footer { border-top: 1px solid var(--line); padding-top: .8rem; }
.part-card footer strong { color: var(--muted); font-size: .76rem; }
.part-card footer a { display: grid; width: 2.15rem; height: 2.15rem; place-items: center; border-radius: 999px; background: var(--teal-soft); color: var(--teal-dark); font-size: .8rem; font-weight: 850; text-decoration: none; }
.center-action { display: flex; justify-content: center; margin-top: 1.35rem; }

.module-directory { display: grid; gap: .7rem; margin-top: 1.2rem; scroll-margin-top: 6rem; }
.module-part { border: 1px solid var(--line); border-radius: 11px; background: #fff; overflow: clip; }
.module-part.is-filtered { display: none; }
.module-part summary { display: flex; min-height: 4.5rem; align-items: center; justify-content: space-between; gap: 1rem; cursor: pointer; padding: 1rem 1.1rem; list-style: none; }
.module-part summary::-webkit-details-marker { display: none; }
.module-part summary::after { content: "+"; display: grid; width: 2rem; height: 2rem; flex: 0 0 auto; place-items: center; border-radius: 999px; background: var(--teal-soft); color: var(--teal-dark); font-weight: 900; }
.module-part[open] summary::after { content: "−"; }
.module-part summary > span { display: grid; gap: .2rem; }
.module-part summary small { color: var(--muted); font-size: .67rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.module-part summary strong { font-size: 1.05rem; }
.module-part summary > b { margin-left: auto; color: var(--muted); font-size: .75rem; }
.module-list { display: grid; border-top: 1px solid var(--line); }
.module-link { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr) auto; gap: .8rem; align-items: center; padding: .9rem 1.1rem; text-decoration: none; }
.module-link + .module-link { border-top: 1px solid #edf2f3; }
.module-link:hover { background: var(--teal-soft); }
.module-link.is-filtered { display: none; }
.module-link > span:first-child { color: var(--teal-dark); font-size: .8rem; font-weight: 900; }
.module-link > span:nth-child(2) { display: grid; gap: .18rem; min-width: 0; }
.module-link strong { font-size: .9rem; line-height: 1.35; }
.module-link small { overflow: hidden; color: var(--muted); font-size: .75rem; line-height: 1.4; text-overflow: ellipsis; white-space: nowrap; }
.module-link > span:last-child { color: var(--teal-dark); font-weight: 900; }

.section--tint { background: linear-gradient(180deg, #eef7f6, #f7faf9); }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .85rem; margin-top: 1.5rem; }
.method-grid article { border: 1px solid var(--line); border-radius: 11px; background: rgba(255,255,255,.9); padding: 1.1rem; }
.method-grid article > span { display: grid; width: 2.35rem; height: 2.35rem; place-items: center; border-radius: 8px; background: var(--teal-soft); color: var(--teal-dark); font-size: .76rem; font-weight: 900; }
.method-grid h3 { margin: 1.2rem 0 .45rem; }
.method-grid p { margin-bottom: 0; color: var(--muted); font-size: .86rem; line-height: 1.55; }
.method-grid--visual article { position: relative; display: grid; min-height: 12rem; place-items: center; align-content: center; text-align: center; }
.method-grid--visual article:not(:last-child)::after { content: "→"; position: absolute; right: -.75rem; z-index: 2; display: grid; width: 1.5rem; height: 1.5rem; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: #f7faf9; color: #78909a; font-size: .8rem; font-weight: 900; }
.method-grid--visual article > small { margin-top: .8rem; color: var(--muted); font-size: .66rem; font-weight: 850; letter-spacing: .1em; }
.method-grid--visual h3 { margin: .28rem 0 0; }

.educator { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(18rem, .75fr); gap: 1.25rem; padding-block: clamp(4rem, 7vw, 6.4rem); }
.educator-profile, .educator-note { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: clamp(1.25rem, 3vw, 2rem); box-shadow: var(--shadow); }
.educator-profile { display: grid; grid-template-columns: auto 1fr; gap: 1.5rem; }
.portrait { display: grid; width: clamp(6.5rem, 12vw, 9rem); height: clamp(7.8rem, 15vw, 11rem); place-items: center; border-radius: 12px; background: linear-gradient(155deg, var(--teal-dark), #163d50 68%, var(--gold)); box-shadow: 0 16px 30px rgba(20,49,62,.18); }
.portrait span { color: #fff; font-family: Georgia, serif; font-size: clamp(2rem, 5vw, 3.3rem); }
.educator-profile h2 { font-size: clamp(2rem, 3.4vw, 3rem); }
.educator-role { margin: -.2rem 0 .9rem; color: var(--teal-dark); font-weight: 820; }
.educator-intro { max-width: 50rem; color: var(--muted); line-height: 1.6; }
.credential-list { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.1rem 0 0; padding: 0; list-style: none; }
.credential-list li { border: 1px solid var(--line); border-radius: 999px; background: var(--surface-soft); color: #3d5964; font-size: .76rem; font-weight: 740; padding: .48rem .65rem; }
.educator-note h3 { margin-bottom: .7rem; font-size: 1.5rem; }
.educator-note > p:not(.eyebrow, .independence-note) { color: var(--muted); line-height: 1.6; }
.independence-note { margin: 1rem 0 0; color: var(--muted); font-size: .73rem; line-height: 1.5; }

.telegram { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1.3rem; align-items: center; border-radius: var(--radius); background: linear-gradient(135deg, var(--teal-dark), #184c62); color: #fff; padding: clamp(1.25rem, 3.5vw, 2.25rem); box-shadow: var(--shadow-strong); }
.telegram .eyebrow { color: #9ee3dc; }
.telegram h2 { margin-bottom: .45rem; font-size: clamp(1.75rem, 3vw, 2.55rem); }
.telegram p:not(.eyebrow) { max-width: 55rem; margin-bottom: 0; color: rgba(255,255,255,.76); line-height: 1.55; }
.telegram-mark { display: grid; width: 3.2rem; height: 3.2rem; place-items: center; border: 1px solid rgba(255,255,255,.2); border-radius: 10px; background: rgba(255,255,255,.08); font-size: 1.5rem; }

.faq-list { display: grid; gap: .65rem; margin-top: 1.4rem; }
.faq-list details { border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 1rem; }
.faq-list summary { cursor: pointer; font-weight: 830; }
.faq-list p { max-width: 60rem; margin: .75rem 0 0; color: var(--muted); line-height: 1.6; }
.final-cta { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-bottom: 5rem; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: clamp(1.4rem, 4vw, 2.5rem); box-shadow: var(--shadow); }
.final-cta h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
.final-cta p:not(.eyebrow) { margin-bottom: 0; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 2rem; color: var(--muted); font-size: .8rem; }
.footer-inner p { margin: .25rem 0 0; }

[data-view="visitor"] .student-only, [data-view="student"] .visitor-only { display: none !important; }

@media (max-width: 1000px) {
  .primary-nav { position: absolute; top: calc(100% + 1px); right: 1rem; left: 1rem; display: none; margin: 0; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: .6rem; box-shadow: var(--shadow-strong); }
  .primary-nav.is-open { display: flex; }
  .menu-toggle { display: block; }
  .hero, .daily-wrap, .educator { grid-template-columns: 1fr; }
  .hero { gap: 2rem; }
  .start-card { max-width: 42rem; }
  .action-grid, .part-grid { grid-template-columns: repeat(2, 1fr); }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .method-grid--visual article:not(:last-child)::after { display: none; }
  .telegram { grid-template-columns: auto 1fr; }
  .telegram .button { grid-column: 2; justify-self: start; }
  .final-cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 1.2rem), var(--max)); }
  .header-inner { width: calc(100% - 1.2rem); min-height: 66px; gap: .5rem; }
  .brand-copy small { display: none; }
  .button--small { min-height: 2.35rem; padding: .45rem .62rem; font-size: .78rem; }
  .hero { padding-block: 3.5rem; }
  h1 { font-size: clamp(2.75rem, 15vw, 4rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .feature-list { align-items: flex-start; flex-direction: column; }
  .feature-list--path { align-items: center; flex-direction: row; }
  .action-grid, .part-grid, .method-grid { grid-template-columns: 1fr; }
  .daily-card__header, .daily-card__footer, .section-heading--split { align-items: flex-start; flex-direction: column; }
  .daily-card__footer a { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .7rem; text-align: center; }
  .course-facts { grid-template-columns: repeat(2, 1fr); }
  .course-facts div + div { border-left: 0; }
  .course-facts div:nth-child(even) { border-left: 1px solid var(--line); }
  .course-facts div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .curriculum-search, .curriculum-search input { width: 100%; }
  .module-part summary > b { display: none; }
  .module-link { grid-template-columns: 2.6rem minmax(0, 1fr) auto; padding-inline: .8rem; }
  .module-link small { display: none; }
  .educator-profile { grid-template-columns: 1fr; }
  .portrait { width: 6.4rem; height: 7.4rem; }
  .telegram { grid-template-columns: 1fr; }
  .telegram .button { grid-column: 1; width: 100%; }
  .telegram-mark { display: none; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

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