/* ============================================================
   M class — лендинг. Дизайн-система из брендбука (август 2026)
   Песок/графит 70% · терракота 20% · охра ≤10% (только на графите)
   ============================================================ */

:root {
  /* Графит и нейтраль */
  --sand: #FFFFFF;          /* основной фон — белый (песок #F5F0E9 заменён по правке заказчика) */
  --paper: #F4F5F7;         /* светло-серый: чередующиеся секции и карточки */
  --g900: #16181C;          /* графит 900: тёмные секции, текст */
  --g800: #2A2E36;          /* графит 800: карточки на тёмном */
  --g600: #4A5058;          /* графит 600: вторичный текст */
  --g200: #DDE0E4;          /* линии, разделители */
  /* Терракота — бренд и действие */
  --t700: #A03E1E;          /* акцентный текст на светлом (6,6:1) */
  --t500: #C9522E;          /* кнопки, заливки */
  --t400: #E7805A;
  --t100: #F8E7DF;          /* подложки */
  /* Охра — награда, только на графите */
  --a500: #F2A63C;
  --a300: #FBD9A0;
  --a700: #C97F1C;          /* иконки на светлом */
  /* Статусы */
  --ok: #17754F;            /* освоено (на светлом) */
  --ok-dark: #2FA97A;       /* освоено (на графите) */
  --idle: #8A9099;          /* не начато */
  --radius: 20px;
  --radius-sm: 12px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--g900);
  background: var(--sand);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

h1, h2, h3 { font-weight: 800; line-height: 1.15; letter-spacing: -0.03em; }

h1 { font-size: clamp(34px, 5vw, 52px); }

h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

h3 { font-size: 18px; letter-spacing: -0.01em; margin-bottom: 8px; }

p { margin: 0 0 10px; }

small { font-size: 0.82em; color: var(--g600); }

b, strong { font-variant-numeric: tabular-nums; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 760px; }

.caps-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--t700);
  margin-bottom: 10px;
}

.num-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--t700);
  margin-bottom: 8px;
}

.section-dark .num-label { color: var(--a500); }

.hl { color: var(--t700); }

.hl-amber { color: var(--a500); }

.section-lead {
  font-size: 18px;
  color: var(--g600);
  max-width: 640px;
  margin-bottom: 28px;
}

.footnote {
  font-size: 13.5px;
  color: var(--g600);
  max-width: 760px;
  margin-top: 22px;
}

/* ---------- Кнопки (pill) ---------- */

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  text-align: center;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--t500); color: #fff; }
.btn-primary::after { content: "→"; margin-left: 10px; font-weight: 700; }
.btn-primary:hover { background: #b84826; }

.btn-secondary {
  background: transparent;
  color: var(--g900);
  border: 1.5px solid var(--g900);
}
.btn-secondary:hover { background: rgba(22, 24, 28, 0.05); }

.btn-soft { background: var(--t100); color: var(--t700); }
.btn-soft:hover { background: var(--t500); color: #fff; }

.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 17px 34px; font-size: 17px; }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 22px; }

/* ---------- Шапка ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--g200);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--g900);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.02em;
  margin-right: auto;
}

.logo-mark { width: 38px; height: 38px; border-radius: 9px; }

.logo-text { display: flex; flex-direction: column; line-height: 1.1; }

.logo-tag {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--t700);
}

.site-nav { display: flex; gap: 22px; }

.site-nav a {
  color: var(--g600);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
}
.site-nav a:hover { color: var(--t700); }

.nav-tg { display: inline-flex; align-items: center; gap: 6px; }

.nav-tg svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

section { scroll-margin-top: 76px; }

/* ---------- Секции ---------- */

.section { padding: 72px 0; }
.section-paper { background: var(--paper); }
.section-dark {
  position: relative;
  overflow: hidden;
  background: var(--g900);
  color: var(--sand);
}

.section-dark::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(242, 166, 60, 0.14), transparent 65%);
  pointer-events: none;
}

.section-dark h2 { color: var(--sand); position: relative; }

/* ---------- Герой ---------- */

.hero { padding: 56px 0 72px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-lead { font-size: 18px; color: var(--g600); max-width: 520px; }

.hero-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.hero-badges li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--t700);
  background: var(--t100);
  padding: 8px 16px;
  border-radius: 999px;
}

.hero-badges li::before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 17px;
  height: 17px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 800;
}

/* Телефон-макет */

.phone-wrap { display: flex; justify-content: center; }

.phone {
  width: 300px;
  max-width: 100%;
  background: var(--g900);
  border-radius: 38px;
  padding: 11px;
  box-shadow: 0 24px 60px rgba(22, 24, 28, 0.28);
}

/* Фиксированная высота = натуральне пропорции смартфона (~1.95:1) */
.phone-screen {
  background: #F3F4F6;
  border-radius: 28px;
  padding: 16px 14px 12px;
  height: 575px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.p-user {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.p-hello { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--g600); margin: 0; line-height: 1.35; }

.p-streak {
  font-size: 12px;
  font-weight: 700;
  color: var(--g900);
  background: var(--a500);
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.p-forecast {
  background: var(--g900);
  color: var(--sand);
  border-radius: 16px;
  padding: 12px;
  margin-bottom: 12px;
}

.p-score-row { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }

.p-score { font-size: 44px; font-weight: 800; line-height: 1; letter-spacing: -0.02em; }

.p-delta { font-size: 14px; font-weight: 700; color: var(--a500); }

.p-bar {
  position: relative;
  height: 8px;
  background: var(--g800);
  border-radius: 999px;
  margin-bottom: 6px;
}

.p-bar-fill {
  display: block;
  height: 100%;
  background: var(--ok-dark);
  border-radius: 999px;
}

.p-bar-goal {
  position: absolute;
  top: -3px;
  width: 3px;
  height: 14px;
  background: var(--a500);
  border-radius: 2px;
}

.p-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(245, 240, 233, 0.7);
  margin-bottom: 10px;
}

.p-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 11px;
  color: rgba(245, 240, 233, 0.7);
  border-top: 1px solid var(--g800);
  padding-top: 10px;
}

.p-meta b { color: var(--sand); }

.p-spark { display: block; width: 100%; height: 22px; margin: 2px 0 8px; }

.p-today { color: var(--g600); margin-bottom: 10px; }

.p-card {
  background: #FFFFFF;
  border: 1px solid var(--g200);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 0;
  overflow: hidden;
}

.p-type { color: var(--t700); margin-bottom: 4px; }

.p-title { font-size: 15.5px; font-weight: 800; line-height: 1.25; letter-spacing: -0.01em; }

.p-text { font-size: 12.5px; color: var(--g600); }

.p-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }

.p-chip {
  font-size: 11px;
  font-weight: 600;
  background: rgba(22, 24, 28, 0.06);
  padding: 4px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.p-chip-active { background: var(--t100); color: var(--t700); }

.p-bonus { font-size: 12px; font-weight: 700; color: var(--t700); margin-bottom: 8px; }

.p-btn { display: block; width: 100%; padding: 11px 16px; font-size: 13.5px; }

.p-tabs {
  display: flex;
  justify-content: space-between;
  gap: 2px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--g200);
}

.p-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 9px;
  font-weight: 600;
  color: var(--g600);
}

.p-tab svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.p-tab-active { color: var(--t500); }

/* ---------- Карточки ---------- */

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--g200);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(22, 24, 28, 0.10); }

.section-paper .card { background: var(--sand); }

.card-photo {
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-sm);
  background: var(--t100);
  margin-bottom: 14px;
}

/* Фото ученицы в блоке «Как проходит подготовка» */

.how-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: stretch;
}

.how-photo {
  background: var(--t100);
  border-radius: var(--radius);
  min-height: 480px;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.how-photo img {
  width: 88%;
  max-width: 330px;
  object-fit: contain;
  display: block;
}

.card p { color: var(--g600); font-size: 15px; margin: 0; }

/* Тёмная секция */

.cards-dark { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card-dark {
  background: var(--g800);
  border-color: var(--g800);
  color: var(--sand);
}

.card-dark h3 { color: var(--sand); }
.card-dark h3::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 3px;
  border-radius: 2px;
  background: var(--a500);
  margin-right: 10px;
  vertical-align: 5px;
}
.card-dark p { color: rgba(245, 240, 233, 0.72); }

/* ---------- Шаги ---------- */

.steps { list-style: none; max-width: 760px; margin-top: 28px; }

.step {
  position: relative;
  display: flex;
  gap: 20px;
  padding: 22px 0;
}

/* Стрелка-последовательность от шага к шагу */

.step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 72px;
  bottom: -4px;
  border-left: 2px dashed rgba(201, 82, 46, 0.45);
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 16px;
  bottom: -12px;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 9px solid rgba(201, 82, 46, 0.55);
}

.step-num {
  flex: 0 0 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--t500);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  border-radius: 50%;
}

.step h3 { font-size: 19px; }

.step p { color: var(--g600); margin: 0; }

/* ---------- Предметы ---------- */

.subjects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 8px;
}

.subject-group {
  background: var(--sand);
  border: 1px solid var(--g200);
  border-radius: var(--radius);
  padding: 24px;
}

.subject-group-profile { border-color: var(--t400); }

.subject-group h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.score-chip {
  font-size: 12px;
  font-weight: 700;
  color: var(--g600);
  background: var(--paper);
  border: 1px solid var(--g200);
  padding: 4px 10px;
  border-radius: 999px;
}

.score-hot { color: var(--t700); border-color: var(--t400); background: var(--t100); }

/* Карточки предметов */

.subject-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.subject-card {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--g200);
  border-radius: var(--radius-sm);
  padding: 16px 14px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.subject-card:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(22, 24, 28, 0.09); }

.subject-card h4 { font-size: 15.5px; font-weight: 800; letter-spacing: -0.01em; }

.subject-card p { flex: 1; font-size: 13px; color: var(--g600); margin: 4px 0 12px; }

.subject-card p small { display: block; }

.btn-diag {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--t500);
  color: var(--t700);
  background: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-diag:hover { background: var(--t500); color: #fff; }

.subject-group-mandatory .subject-cards { grid-template-columns: repeat(3, 1fr); }

/* Уникальный лёгкий оттенок для каждого предмета */

.subject-group-mandatory .subject-card:nth-child(1) { background: #FBE0D8; }
.subject-group-mandatory .subject-card:nth-child(2) { background: #FCEFC7; }
.subject-group-mandatory .subject-card:nth-child(3) { background: #D8ECE9; }

.subject-group-profile .subject-card:nth-child(1) { background: #E1F0D9; }
.subject-group-profile .subject-card:nth-child(2) { background: #EAE4F6; }
.subject-group-profile .subject-card:nth-child(3) { background: #DEEBF7; }
.subject-group-profile .subject-card:nth-child(4) { background: #E0E7F0; }
.subject-group-profile .subject-card:nth-child(5) { background: #F8E0EA; }
.subject-group-profile .subject-card:nth-child(6) { background: #F3ECD9; }

/* ---------- Что видит ученик: горизонтальная карусель, вертикальные карточки ---------- */

.showcase {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.showcase::-webkit-scrollbar { display: none; }

.showcase-item {
  flex: 0 0 calc(50% - 12px);
  scroll-snap-align: start;
  border: 1px solid var(--g200);
  border-radius: var(--radius);
  background: #FFFFFF;
  overflow: hidden;
}

.showcase-item img {
  display: block;
  width: 100%;
  height: auto;
}

.showcase-text { padding: 16px 20px 20px; }

.showcase-text h3 { font-size: 17px; margin-bottom: 6px; }

.showcase-text p { font-size: 14.5px; color: var(--g600); margin: 0; }

.showcase-nav { display: flex; gap: 10px; margin-top: 16px; }

.showcase-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--g900);
  background: transparent;
  color: var(--g900);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease;
}

.showcase-btn:hover { background: rgba(22, 24, 28, 0.06); }

/* ---------- Родителям ---------- */

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.split p:last-child { color: var(--g600); }

.tg-mock {
  background: var(--g900);
  color: var(--sand);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 400px;
  justify-self: end;
  box-shadow: 0 16px 40px rgba(22, 24, 28, 0.22);
}

.tg-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--a500);
  margin-bottom: 12px;
}

.tg-line { font-size: 15px; padding: 4px 0; }

.tg-line b { color: var(--ok-dark); }

.tg-btn {
  display: inline-block;
  margin-top: 14px;
  padding: 10px 20px;
  background: var(--t500);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
}

/* ---------- Стоимость ---------- */

.free-tier {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: var(--sand);
  border: 1.5px dashed var(--t500);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin-bottom: 20px;
}

.free-tier p { margin: 0; font-size: 15px; color: var(--g600); max-width: 720px; }
.free-tier .caps-label { margin-bottom: 4px; color: var(--ok); }

.free-price {
  font-size: 26px;
  font-weight: 800;
  color: var(--ok);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

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

.price-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--g200);
  border-radius: var(--radius);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.price-card:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(22, 24, 28, 0.12); }

.price-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.price-count {
  font-size: 12px;
  font-weight: 700;
  color: var(--t700);
  background: var(--t100);
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.price-card-featured .price-count { background: var(--t500); color: #fff; }

.price-card h3 { font-size: 22px; margin-bottom: 2px; }

.price-sub { font-size: 14px; color: var(--g600); margin-bottom: 14px; }

.price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--g200);
  font-size: 14px;
  color: var(--g600);
}

.price-row b {
  text-align: right;
  color: var(--g900);
  font-size: 15.5px;
  white-space: nowrap;
}

.price-row small { display: block; font-weight: 600; color: var(--t700); }

.price-card .btn { margin-top: 18px; }

.price-card-featured {
  border: 2px solid var(--t500);
}

/* ---------- FAQ ---------- */

#faq details {
  background: var(--paper);
  border: 1px solid var(--g200);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin-bottom: 10px;
}

#faq summary {
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 36px;
}

#faq summary::-webkit-details-marker { display: none; }

#faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--t700);
  transition: transform 0.2s ease;
}

#faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }

#faq details p { margin: 10px 0 0; color: var(--g600); }

/* ---------- Финальный CTA ---------- */

.final-cta { text-align: center; }

.final-cta .section-lead { margin-left: auto; margin-right: auto; }

/* ---------- Футер ---------- */

.site-footer {
  background: var(--g900);
  color: rgba(245, 240, 233, 0.6);
  padding: 56px 0 24px;
  font-size: 14px;
  border-top: 1px solid var(--g800);
}

.site-footer b { color: var(--sand); }

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--g800);
}

.footer-brand p { margin: 14px 0 16px; max-width: 300px; color: rgba(245, 240, 233, 0.6); }

.logo-footer { color: var(--sand); }

.logo-footer .logo-tag { color: var(--t400); }

.footer-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--a500);
  margin-bottom: 14px;
}

.footer-col { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }

.footer-col a {
  color: rgba(245, 240, 233, 0.72);
  text-decoration: none;
}

.footer-col a:hover { color: var(--sand); }

.footer-col p { margin: 0; }

.footer-tg {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--t500);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.footer-tg svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-tg:hover { background: #b84826; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  font-size: 13px;
}

.footer-bottom p { margin: 0; }

/* ---------- Адаптив ---------- */

@media (max-width: 960px) {
  .site-nav { display: none; }

  .hero { padding: 40px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }

  .how-grid { grid-template-columns: 1fr; gap: 28px; }
  .how-photo { min-height: 360px; }

  .cards-3 { grid-template-columns: 1fr 1fr; }

  .subjects-grid { grid-template-columns: 1fr; }

  .subject-cards,
  .subject-group-mandatory .subject-cards { grid-template-columns: 1fr 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }

  .split { grid-template-columns: 1fr; gap: 32px; }
  .tg-mock { justify-self: start; }

  .pricing-grid { grid-template-columns: 1fr; max-width: 460px; }

  .section { padding: 56px 0; }
}

@media (max-width: 640px) {
  .cards-3 { grid-template-columns: 1fr; }

  .free-tier { flex-direction: column; align-items: flex-start; }

  .step { gap: 14px; }
  .step-num { flex-basis: 36px; height: 36px; font-size: 15px; }

  .footer-bottom { flex-direction: column; }
}

@media (max-width: 480px) {
  .subject-cards,
  .subject-group-mandatory .subject-cards { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 720px) {
  /* Мобильный: один экран карусели в кадре */
  .showcase-item { flex: 0 0 100%; }
}

@media (max-width: 400px) {
  .logo-tag { display: none; }
  .header-inner { gap: 12px; }
}