/* ============================================================
   site.css — слой продукта поверх дизайн-системы курса (style.css).
   Использует те же CSS-переменные (--blue, --surface, --ink, ...),
   поэтому светлая/тёмная темы работают автоматически.
   Добавляет: анимированный фон, стеклянные карточки, лендинг,
   кабинет, календарь-хитмап, сетку ачивок, формы, анимации.
   ============================================================ */

:root {
  --maxw: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --glass: color-mix(in srgb, var(--surface) 82%, transparent);
  --ring: 0 0 0 1px var(--border);
  --grad-brand: linear-gradient(120deg, var(--blue), var(--aqua));
  --grad-warm: linear-gradient(120deg, var(--violet), var(--blue));
}

html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

.wrap-wide { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- Анимированный mesh-фон ---------- */
.bg-mesh {
  position: fixed;
  inset: -20vmax;
  z-index: -2;
  background:
    radial-gradient(40vmax 40vmax at 15% 12%, color-mix(in srgb, var(--blue) 26%, transparent), transparent 60%),
    radial-gradient(38vmax 38vmax at 85% 18%, color-mix(in srgb, var(--aqua) 24%, transparent), transparent 60%),
    radial-gradient(46vmax 46vmax at 70% 88%, color-mix(in srgb, var(--violet) 22%, transparent), transparent 62%),
    radial-gradient(36vmax 36vmax at 20% 82%, color-mix(in srgb, var(--yellow) 16%, transparent), transparent 60%);
  /* Мягкость даёт сам градиент (плавные прозрачные стопы), поэтому тяжёлый
     filter: blur не нужен. Он + scale в анимации заставляли Firefox/Linux
     пересчитывать размытие покадрово → мерцание. Оставляем только лёгкий
     translate на стабильном GPU-слое. */
  filter: saturate(1.05);
  animation: meshdrift 26s var(--ease) infinite alternate;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}
@keyframes meshdrift {
  0%   { transform: translate3d(0, 0, 0); }
  50%  { transform: translate3d(2%, -1.5%, 0); }
  100% { transform: translate3d(-2%, 1.5%, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .bg-mesh { animation: none; }
}

/* ---------- Навигация сайта ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: blur(12px) saturate(1.1);
  background: color-mix(in srgb, var(--page) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.site-nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; gap: 22px;
}
.brand {
  font-weight: 800; font-size: 20px; letter-spacing: -0.02em;
  text-decoration: none; color: var(--ink);
}
.brand span { color: var(--blue); }
/* ---- cookie consent ---- */
.cookie-bar {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 60;
  max-width: 760px; margin: 0 auto;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--border); border-radius: 16px;
  box-shadow: 0 10px 40px -12px rgba(11,11,11,0.35); padding: 16px 20px;
  animation: cookie-up 0.5s ease-out both;
}
.cookie-bar[hidden] { display: none; }
.cookie-bar p { margin: 0; flex: 1 1 320px; font-size: 14px; line-height: 1.55; color: var(--ink-2); }
.cookie-bar a { color: var(--blue); text-decoration: none; }
.cookie-bar a:hover { text-decoration: underline; }
.cookie-bar .btn { white-space: nowrap; }
@keyframes cookie-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.brand { display: inline-flex; align-items: baseline; }
.brand-word { color: var(--ink); text-decoration: none; }
.brand-word:hover, .brand-sub:hover { opacity: 0.82; }
.brand-sub {
  font-style: italic; font-weight: 800; font-size: 0.9em;
  letter-spacing: -0.01em; text-transform: none; color: var(--ink);
  text-decoration: none; margin-left: 6px; display: inline-block;
  transform: rotate(-8deg); transform-origin: center bottom;
}
.site-nav-links { display: flex; gap: 20px; margin-left: 8px; }
.site-nav-links a { color: var(--ink-2); text-decoration: none; font-size: 15px; }
.site-nav-links a:hover { color: var(--blue); }
.site-nav-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.logout-form { margin: 0; display: inline-flex; }

/* «Сегодня занимаемся» в кабинете */
.today-head { display: flex; gap: 14px; align-items: center; }
.today-num {
  width: 44px; height: 44px; flex: none; border-radius: 13px;
  background: var(--blue-soft); color: var(--blue);
  font-weight: 800; font-size: 18px; display: grid; place-items: center;
}
.today-label { font-size: 13px; font-weight: 800; color: var(--blue); text-transform: uppercase; letter-spacing: .04em; }
.today-head h4 { margin: 2px 0 0; font-size: 17px; }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; font-weight: 600; font-size: 15px;
  font-family: inherit; line-height: 1.2; box-sizing: border-box; margin: 0;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform .12s var(--ease), box-shadow .12s var(--ease), background .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid { background: var(--grad-brand); color: #fff; box-shadow: 0 6px 20px color-mix(in srgb, var(--blue) 35%, transparent); }
.btn-ghost { background: var(--glass); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-lg { padding: 15px 30px; font-size: 17px; }
.btn-tg { background: #229ED9; color: #fff; }
.btn-tg:hover { box-shadow: 0 6px 20px rgba(34,158,217,.4); }

/* ---------- Секции ---------- */
.section { padding: 84px 0; position: relative; }
.section-tight { padding: 52px 0; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--blue);
  padding: 5px 12px; border-radius: 999px;
  background: var(--blue-soft); margin-bottom: 14px;
}
.section h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -0.02em; margin: 0 0 14px; border: none; }
.section .lead { font-size: 19px; color: var(--ink-2); max-width: 60ch; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 60px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero h1 {
  font-size: clamp(34px, 6vw, 60px); line-height: 1.05; letter-spacing: -0.03em;
  margin: 14px 0 18px;
}
.hero h1 .grad { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { font-size: 20px; color: var(--ink-2); margin: 0 0 26px; max-width: 52ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note { font-size: 14px; color: var(--muted); margin-top: 14px; }
.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 600;
  padding: 8px 14px; border-radius: 999px; background: var(--glass);
  border: 1px solid var(--border); color: var(--ink-2);
}

/* математические символы — только в герое, статичный фон с лёгким парением */
.hero { overflow: hidden; }
.hero-grid { position: relative; z-index: 1; }
.hero-math { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-math span {
  position: absolute; font-family: var(--mono); font-weight: 700;
  color: var(--blue); opacity: 0.08; user-select: none;
}
.hero-math span.v2 { color: var(--aqua); }
.hero-math span.v3 { color: var(--violet); }
.hero-math .fl { animation: floaty 9s ease-in-out infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@media (prefers-reduced-motion: reduce) { .hero-math .fl { animation: none; } }

/* ---------- Экзаменационные билеты ---------- */
.bilety-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-top: 34px; }
.bilet-card {
  display: flex; flex-direction: column; gap: 12px; padding: 26px 24px;
  background: var(--glass); border: 1px solid var(--border); border-radius: 18px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
  transition: transform .16s var(--ease), border-color .16s;
}
.bilet-card:hover { transform: translateY(-4px); border-color: var(--blue); }
.bilet-card.future { border-color: color-mix(in srgb, var(--aqua) 45%, var(--border)); }
.bilet-card.future::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--grad-brand); }
.bilet-tag {
  align-self: flex-start; font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 4px 11px; border-radius: 999px;
  background: var(--blue-soft); color: var(--blue);
}
.bilet-card.future .bilet-tag { background: var(--aqua-soft); color: var(--aqua); }
.bilet-year { font-size: 40px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.bilet-card p { margin: 0; color: var(--ink-2); font-size: 14.5px; flex: 1; }
.bilet-open {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  font-weight: 700; font-size: 14.5px; color: var(--blue); text-decoration: none;
}
.bilet-open:hover { gap: 11px; }

/* ---------- Компактная карточка руководителя ---------- */
.ceo-mini {
  display: flex; align-items: center; gap: 15px;
  padding: 15px 18px; border: 1px solid var(--border); border-radius: 16px;
  background: var(--glass);
}
.ceo-mini img { width: 54px; height: 54px; border-radius: 50%; object-fit: cover; flex: none; border: 2px solid var(--border); }
.ceo-mini .nm { font-weight: 700; font-size: 15px; line-height: 1.25; }
.ceo-mini .rl { font-size: 12.5px; color: var(--blue); font-weight: 600; }
.ceo-mini .tg { font-size: 12.5px; color: var(--muted); margin: 3px 0 5px; }
.ceo-mini .lk { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12.5px; }
.ceo-mini .lk a { color: var(--ink-2); text-decoration: none; }
.ceo-mini .lk a:hover { color: var(--blue); }

/* стеклянная карточка-превью в герое */
.glass {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.hero-card { padding: 22px; }
.hero-card .row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--grid); }
.hero-card .row:last-child { border-bottom: none; }
.mini-bar { height: 8px; border-radius: 999px; background: var(--grid); width: 120px; overflow: hidden; }
.mini-bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: 999px; }

/* countdown chip */
.countdown {
  display: inline-flex; gap: 8px; align-items: baseline;
  font-weight: 700; color: var(--red);
  background: var(--red-soft); padding: 6px 14px; border-radius: 999px; font-size: 14px;
}

/* ---------- Сетка фич ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 36px; }
.feature {
  background: var(--glass); border: 1px solid var(--border); border-radius: 18px;
  padding: 24px; box-shadow: var(--shadow);
  transition: transform .16s var(--ease), border-color .16s;
}
.feature:hover { transform: translateY(-4px); border-color: var(--blue); }
.feature .ico { font-size: 30px; line-height: 1; margin-bottom: 12px; display: block; }
.feature h3 { margin: 0 0 8px; font-size: 19px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* ---------- Шаги «как это работает» ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 18px; margin-top: 34px; counter-reset: step; }
.step {
  position: relative; padding: 24px 22px; background: var(--glass);
  border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow);
  transition: transform .16s var(--ease), border-color .16s;
}
.step:hover { transform: translateY(-4px); border-color: var(--blue); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 13px; margin-bottom: 16px;
  background: var(--blue-soft); color: var(--blue); font-weight: 800; font-size: 19px;
}
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

/* ---------- Таймлайн плана (лендинг превью + кабинет) ---------- */
.timeline { position: relative; margin-top: 30px; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 15px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--blue), var(--aqua)); border-radius: 2px; }
.tl-day { position: relative; margin-bottom: 16px; background: var(--glass); border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; }
.tl-day::before { content: ""; position: absolute; left: -20px; top: 22px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); border: 3px solid var(--surface); box-shadow: 0 0 0 2px var(--blue-soft); }
.tl-day.done::before { background: var(--green); }
.tl-day.milestone::before { background: var(--red); }
.tl-day .d-head { display: flex; align-items: baseline; gap: 10px; }
.tl-day .d-num { font-weight: 800; color: var(--blue); font-size: 14px; }
.tl-day h4 { margin: 0; font-size: 16.5px; }
.tl-day .d-focus { color: var(--ink-2); font-size: 14px; margin: 6px 0 0; }
.tl-tasks { margin: 10px 0 0; padding: 0; list-style: none; }
.tl-tasks li { font-size: 14px; color: var(--ink-2); padding: 3px 0 3px 22px; position: relative; }
.tl-tasks li::before { content: "○"; position: absolute; left: 0; color: var(--muted); }
.tl-tasks li.done::before { content: "✓"; color: var(--green); }

/* ---------- Маршрут-план (лендинг) ---------- */
.route { margin-top: 36px; }
.route-day { display: grid; grid-template-columns: 46px 1fr; gap: 20px; align-items: stretch; }
.route-rail { position: relative; display: flex; justify-content: center; }
.route-rail::before {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  top: 0; bottom: 0; width: 2px;
  background: linear-gradient(var(--blue), var(--aqua)); opacity: 0.45; border-radius: 2px;
}
.route-day:first-child .route-rail::before { top: 23px; }
.route-day:last-child .route-rail::before { bottom: auto; height: 23px; }
.route-num {
  position: relative; z-index: 1; width: 46px; height: 46px; flex: none;
  border-radius: 14px; display: grid; place-items: center;
  font-weight: 800; font-size: 18px; color: var(--blue);
  background: var(--blue-soft); border: 1px solid var(--border);
}
.route-day.milestone .route-num { color: #fff; background: var(--grad-brand); border-color: transparent; }
.route-card {
  background: var(--glass); border: 1px solid var(--border); border-radius: 16px;
  padding: 18px 20px; margin-bottom: 18px;
  transition: transform .16s var(--ease), border-color .16s;
}
.route-card:hover { transform: translateY(-3px); border-color: var(--blue); }
.route-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.route-label { font-weight: 800; color: var(--blue); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.route-card h4 { margin: 0; font-size: 17px; }
.route-focus { color: var(--ink-2); font-size: 14px; margin: 8px 0 0; }
.route-tasks { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.route-tasks li { font-size: 14px; color: var(--ink-2); padding-left: 22px; position: relative; }
.route-tasks li::before {
  content: ""; position: absolute; left: 4px; top: 8px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--blue); opacity: .7;
}
.route-day.done .route-num { color: #fff; background: var(--green); border-color: transparent; }
.route-pct { margin-left: auto; font-weight: 700; font-size: 13px; color: var(--muted); align-self: center; }
.route-tasks li.done { color: var(--muted); text-decoration: line-through; }
.route-tasks li.done::before { background: var(--green); opacity: 1; }

/* ---------- Цена ---------- */
.price-card {
  max-width: 460px; margin: 34px auto 0; text-align: center;
  background: var(--glass); border: 1px solid var(--border); border-radius: 22px;
  padding: 36px 30px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.price-card::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 5px; background: var(--grad-brand); }
.price-amount { font-size: 54px; font-weight: 800; letter-spacing: -0.03em; }
.price-amount small { font-size: 22px; color: var(--ink-2); font-weight: 600; }
.price-card ul { list-style: none; padding: 0; margin: 20px 0 26px; text-align: left; display: inline-block; }
.price-card ul li { padding: 7px 0 7px 28px; position: relative; color: var(--ink-2); }
.price-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }

/* уголковая лента «Промокоды» на карточке покупки */
.promo-ribbon {
  position: absolute; top: 22px; right: -54px; z-index: 2;
  transform: rotate(45deg);
  background: var(--grad-brand); color: #fff;
  font-weight: 800; font-size: 12.5px; letter-spacing: .02em;
  padding: 7px 60px; box-shadow: 0 6px 16px -8px rgba(0,0,0,.45);
}

/* ---------- Слоган ---------- */
.slogan {
  font-size: clamp(22px, 3.4vw, 34px); font-weight: 800; letter-spacing: -0.02em;
  line-height: 1.25; text-align: center; max-width: 22ch; margin: 0 auto;
  color: var(--ink);
}
.slogan span { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.uni-note { text-align: center; max-width: 64ch; margin: 18px auto 0; font-size: 15px; color: var(--ink-2); }

/* ---------- Апдейт-лог ---------- */
.updates { display: grid; gap: 14px; margin-top: 28px; max-width: 780px; }
.update { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 16px 18px; border: 1px solid var(--border); border-left: 3px solid var(--blue); border-radius: 14px; background: var(--glass); }
.update-date { color: var(--muted); font-weight: 700; font-size: 14px; }
.update-body b { font-size: 16px; }
.update-body p { margin: 6px 0 0; color: var(--ink-2); font-size: 14.5px; }
@media (max-width: 560px) { .update { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- Скриншоты «внутри курса» ---------- */
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 24px; margin-top: 36px; }
.shot { margin: 0; }
.shot-frame {
  display: block; width: 100%; padding: 0; font: inherit; color: inherit; cursor: pointer;
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow);
  transition: transform .18s var(--ease), border-color .18s, box-shadow .18s;
}
.shot-frame:hover { transform: translateY(-5px); border-color: var(--blue); box-shadow: 0 16px 40px -14px color-mix(in srgb, var(--blue) 35%, transparent); }
.shot-bar { display: flex; gap: 6px; padding: 9px 12px; background: color-mix(in srgb, var(--ink) 5%, var(--surface)); border-bottom: 1px solid var(--border); }
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--grid); }
.shot-frame img { display: block; width: 100%; height: auto; }
.shot figcaption { text-align: center; margin-top: 11px; font-weight: 600; font-size: 14.5px; color: var(--ink-2); }

.lightbox { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 28px; }
.lightbox[hidden] { display: none; }
.lb-back { position: absolute; inset: 0; border: 0; cursor: default; background: rgba(3, 8, 6, .82); backdrop-filter: blur(4px); }
.lb-inner { position: relative; max-width: 1120px; width: 100%; }
.lb-inner img { display: block; width: 100%; height: auto; border-radius: 12px; box-shadow: 0 24px 70px rgba(0,0,0,.6); }
.lb-cap { text-align: center; color: #fff; margin-top: 12px; font-weight: 600; font-size: 15px; }
.lb-close { position: absolute; top: -16px; right: -16px; width: 38px; height: 38px; border-radius: 50%; border: 0; cursor: pointer; background: #fff; color: #111; display: grid; place-items: center; font-weight: 800; z-index: 2; }
.lb-close:hover { background: var(--blue); color: #fff; }
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.12); color: #fff; font-size: 30px; line-height: 1; cursor: pointer;
  display: grid; place-items: center; transition: background .15s;
}
.lb-nav:hover { background: rgba(255,255,255,.28); }
.lb-prev { left: 20px; }
.lb-next { right: 20px; }
@media (max-width: 640px) { .lb-prev { left: 8px; } .lb-next { right: 8px; } .lb-nav { width: 44px; height: 44px; font-size: 26px; } }

/* ---------- Темы экзамена ---------- */
.topics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 14px; margin-top: 32px; }
.topic { padding: 16px 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--glass); border-left: 3px solid var(--blue); }
.topic b { display: block; font-size: 15.5px; margin-bottom: 3px; }
.topic span { font-size: 13.5px; color: var(--ink-2); }

/* ---------- FAQ ---------- */
.faq-list { margin-top: 28px; max-width: 780px; }
.faq-item { border: 1px solid var(--border); border-radius: 14px; background: var(--glass); margin-bottom: 12px; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 18px 20px; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq-item summary::after { content: "+"; color: var(--blue); font-weight: 800; }
.faq-item[open] summary::after { content: "–"; }
.faq-item .faq-a { padding: 0 20px 18px; color: var(--ink-2); }

/* ---------- Формы (auth) ---------- */
.auth-wrap { max-width: 440px; margin: 60px auto; padding: 0 22px; }
.auth-wrap.auth-wide { max-width: 660px; }
.auth-card { background: var(--glass); border: 1px solid var(--border); border-radius: 20px; padding: 34px 30px; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 28px; margin: 0 0 6px; }
.auth-card .lead { color: var(--ink-2); margin: 0 0 22px; font-size: 15.5px; }
.auth-form { display: grid; grid-template-columns: 1fr 1fr; gap: 15px 18px; align-items: start; }
.auth-form .field { margin-bottom: 0; }
.field-wide { grid-column: 1 / -1; }
@media (max-width: 560px) {
  .auth-wrap.auth-wide { max-width: 440px; }
  .auth-form { grid-template-columns: 1fr; }
}
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--ink-2); }
.field input {
  width: 100%; padding: 12px 14px; border-radius: 11px;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink);
  font-size: 15px; font-family: var(--sans);
}
.field input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.field .helptext, .field .errorlist { font-size: 13px; margin-top: 5px; }
.field .helptext { color: var(--muted); }
.errorlist { color: var(--red); list-style: none; padding: 0; margin: 6px 0 0; }
.form-note { text-align: center; margin-top: 18px; font-size: 14.5px; color: var(--ink-2); }

/* гейт-страница доступа — лаконичный блок цены/промокода */
.gate-price { margin: 24px 0 20px; }
.gate-promo { display: inline-block; font-size: 13px; font-weight: 700; color: var(--aqua); background: var(--aqua-soft); padding: 5px 13px; border-radius: 999px; margin-bottom: 12px; }
.gate-sum { font-size: 46px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.gate-sum span { font-size: 24px; font-weight: 700; color: var(--ink-2); margin-left: 4px; }
.gate-old { font-size: 14px; color: var(--muted); margin-top: 6px; }
.gate-status { padding: 14px 18px; border-radius: 14px; background: var(--aqua-soft); border: 1px solid color-mix(in srgb, var(--aqua) 40%, transparent); color: var(--ink); margin: 22px 0; font-weight: 600; }
.gate-links { margin-top: 22px; display: flex; gap: 18px; justify-content: center; align-items: center; font-size: 14.5px; }
.gate-links a { color: var(--ink-2); text-decoration: none; }
.gate-links a:hover { color: var(--blue); }
.gate-exit { background: none; border: 0; padding: 0; font: inherit; color: var(--muted); cursor: pointer; }
.gate-exit:hover { color: var(--red); }
.alert { padding: 12px 16px; border-radius: 12px; margin-bottom: 16px; font-size: 14.5px; border: 1px solid var(--border); }
.alert-warn { background: var(--yellow-soft); border-color: var(--yellow); }
.alert-ok { background: var(--aqua-soft); border-color: var(--aqua); color: var(--ink); }
.auth-form textarea, .auth-form select {
  width: 100%; padding: 12px 14px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface); color: var(--ink); font-size: 15px; font-family: var(--sans);
}
.auth-form textarea:focus, .auth-form select:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
/* кастомная стрелка у выпадающего списка вместо нативной */
.auth-form select {
  appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 42px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23898781' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat; background-position: right 14px center;
}
/* кастомная кнопка выбора файла вместо нативной */
.auth-form input[type=file] {
  width: 100%; font-size: 14px; color: var(--ink-2); cursor: pointer;
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface);
}
.auth-form input[type=file]::file-selector-button {
  font: inherit; font-weight: 700; margin-right: 12px; padding: 8px 16px; cursor: pointer;
  border: 0; border-radius: 9px; background: var(--blue-soft); color: var(--blue);
  transition: background .15s, color .15s;
}
.auth-form input[type=file]::file-selector-button:hover { background: var(--blue); color: #fff; }

/* ---------- Кабинет ---------- */
.cab-head { padding: 40px 0 10px; }
.cab-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; margin: 22px 0; }
.stat {
  background: var(--glass); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px 22px; box-shadow: var(--shadow);
}
.stat .k { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.stat .v { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; margin-top: 4px; }
.stat .v small { font-size: 16px; color: var(--ink-2); font-weight: 600; }

.cab-cols { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; align-items: start; }
/* важно: разрешаем колонкам/панелям сжиматься уже контента (иначе тепловая карта распирает вёрстку) */
.cab-cols > *, .cab-grid > * { min-width: 0; }
.panel { background: var(--glass); border: 1px solid var(--border); border-radius: 18px; padding: 24px; box-shadow: var(--shadow); margin-bottom: 22px; min-width: 0; }
.panel h3 { margin: 0 0 16px; font-size: 18px; }

/* прогресс-бары модулей */
.mod-row { display: flex; align-items: center; gap: 14px; margin: 12px 0; }
.mod-row .mod-name { flex: 0 0 190px; font-size: 14.5px; }
.mod-row .bar { flex: 1; height: 10px; border-radius: 999px; background: var(--grid); overflow: hidden; }
.mod-row .bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: 999px; transition: width .5s var(--ease); }
.mod-row .pct { flex: 0 0 44px; text-align: right; font-variant-numeric: tabular-nums; font-size: 14px; color: var(--ink-2); }

/* ---------- Хитмап ---------- */
.heatmap { display: flex; gap: 3px; overflow-x: auto; padding: 6px 0; }
.hm-week { display: flex; flex-direction: column; gap: 3px; }
.hm-cell { width: 13px; height: 13px; border-radius: 3px; background: var(--grid); }
.hm-1 { background: color-mix(in srgb, var(--aqua) 35%, var(--grid)); }
.hm-2 { background: color-mix(in srgb, var(--aqua) 60%, var(--grid)); }
.hm-3 { background: color-mix(in srgb, var(--aqua) 80%, transparent); }
.hm-4 { background: var(--green); }
.hm-legend { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); margin-top: 8px; }

/* ---------- Сетка ачивок ---------- */
.ach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 14px; margin-top: 8px; }
.ach {
  text-align: center; padding: 20px 14px; border-radius: 16px;
  background: var(--glass); border: 1px solid var(--border);
  transition: transform .16s var(--ease);
}
.ach:hover { transform: translateY(-3px); }
.ach.locked { opacity: .5; filter: grayscale(.6); }
.ach .emoji { font-size: 36px; line-height: 1; }
.ach .t { font-weight: 700; font-size: 14.5px; margin: 8px 0 4px; }
.ach .d { font-size: 12.5px; color: var(--ink-2); }
.ach.got { border-color: var(--aqua); box-shadow: 0 4px 16px color-mix(in srgb, var(--aqua) 22%, transparent); }
.ach-bar { height: 6px; border-radius: 999px; background: var(--grid); overflow: hidden; margin: 10px 0 4px; }
.ach-bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: 999px; }
.ach-progress { font-weight: 700; color: var(--blue); font-size: 12px; }

/* ---------- Лидерборд ---------- */
.stat-link { text-decoration: none; color: inherit; display: block; transition: border-color .16s, transform .16s; }
.stat-link:hover { border-color: var(--blue); transform: translateY(-3px); }
.lb-row { display: grid; grid-template-columns: 34px 1fr minmax(60px,130px) auto; align-items: center; gap: 12px; padding: 10px; border-radius: 10px; border-bottom: 1px solid var(--border); }
.lb-row:last-child { border-bottom: none; }
.lb-row.me { background: var(--blue-soft); outline: 1px solid var(--blue); border-bottom-color: transparent; }
.lb-rank { font-weight: 800; text-align: center; font-size: 15px; color: var(--muted); }
.lb-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-name em { color: var(--blue); font-style: normal; font-size: 12px; }
.lb-bar { height: 8px; border-radius: 999px; background: var(--grid); overflow: hidden; }
.lb-bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: 999px; }
.lb-val { font-weight: 800; font-size: 15px; min-width: 40px; text-align: right; }
.lb-row.sm { grid-template-columns: 26px 1fr auto; padding: 6px 8px; }
.lb-row.sm .lb-rank { font-size: 13px; }
.lb-modules { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 16px; }

/* сертификат */
.cert-ready { text-align: center; margin-bottom: 18px; }
.cert-emoji { font-size: 52px; line-height: 1; margin-bottom: 8px; }
.cert-form { margin: 8px 0 4px; }
.cert-bar { height: 10px; border-radius: 999px; background: var(--grid); overflow: hidden; margin-top: 10px; }
.cert-bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: 999px; }

/* профиль — мои варианты */
.myvars { display: grid; gap: 6px; margin: 6px 0 10px; }
.myvar { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--glass); }
.myvar-n { font-weight: 800; }
.myvar-code { font-family: var(--mono); color: var(--blue); font-weight: 700; }
.myvar-date { color: var(--muted); font-size: 13px; }

/* ---------- Месячный календарь ---------- */
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 14px; }
.cal .dow { text-align: center; font-size: 12px; color: var(--muted); font-weight: 700; padding-bottom: 4px; }
.cal .cell { aspect-ratio: 1; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); padding: 6px; font-size: 12px; position: relative; }
.cal .cell.empty { border: none; background: transparent; }
.cal .cell.planned { border-color: var(--blue); }
.cal .cell.done { background: var(--aqua-soft); border-color: var(--aqua); }
.cal .cell.today { box-shadow: 0 0 0 2px var(--blue); }
.cal .cell .dn { font-weight: 700; }
.cal .cell .tag { position: absolute; bottom: 5px; left: 6px; right: 6px; font-size: 10px; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Тост ачивки ---------- */
.toast-wrap { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: center; gap: 12px; padding: 14px 18px;
  background: var(--surface); border: 1px solid var(--aqua); border-radius: 14px;
  box-shadow: 0 8px 30px rgba(0,0,0,.18); min-width: 260px;
  animation: toastin .4s var(--ease);
}
.toast .em { font-size: 28px; }
.toast .tt { font-weight: 700; font-size: 14.5px; }
.toast .td { font-size: 13px; color: var(--ink-2); }
@keyframes toastin { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- Scroll-reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- Юридические страницы (оферта, политика) ---------- */
.legal { max-width: 820px; margin: 40px auto; padding: 0 22px; }
.legal h1 { font-size: clamp(26px, 4vw, 34px); margin: 0 0 6px; }
.legal .legal-meta { color: var(--muted); font-size: 13px; margin: 0 0 28px; }
.legal h2 { font-size: 20px; margin: 30px 0 10px; border: none; padding: 0; }
.legal h3 { font-size: 16px; margin: 20px 0 6px; }
.legal p, .legal li { color: var(--ink-2); font-size: 15px; line-height: 1.7; }
.legal ol, .legal ul { padding-left: 22px; }
.legal ol { counter-reset: none; }
.legal .clause { margin: 0 0 14px; }
.legal a { color: var(--blue); }
.legal-toc { background: var(--glass); border: 1px solid var(--border); border-radius: 14px; padding: 16px 20px; margin: 0 0 24px; }
.legal-toc a { display: inline-block; margin: 3px 10px 3px 0; font-size: 14px; }
/* «мелкий шрифт» — тонущий в простыне дисклеймер */
.fineprint { font-size: 11.5px; line-height: 1.5; color: var(--muted); margin: 10px 0; }
.fineprint a { color: var(--muted); text-decoration: underline; }
.legal .divider { height: 1px; background: var(--grid); margin: 26px 0; border: none; }

/* согласие при регистрации */
.consent {
  display: flex; gap: 12px; align-items: flex-start; margin: 0; cursor: pointer;
  padding: 13px 15px; border: 1px solid var(--blue); border-radius: 12px;
  background: var(--blue-soft);
}
.consent:hover { border-color: var(--blue); }
.consent input[type=checkbox] {
  appearance: none; -webkit-appearance: none;
  flex: none; width: 20px; height: 20px; margin: 0;
  border: 1.5px solid var(--blue); border-radius: 6px;
  background: transparent; cursor: pointer;
  display: grid; place-content: center;
  transition: background .15s, border-color .15s;
}
.consent input[type=checkbox]::before {
  content: ""; width: 11px; height: 11px; transform: scale(0);
  transition: transform .12s ease; background: #fff;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}
.consent input[type=checkbox]:checked { background: var(--blue); border-color: var(--blue); }
.consent input[type=checkbox]:checked::before { transform: scale(1); }
.consent input[type=checkbox]:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--blue-soft); }
.consent span { font-size: 13px; color: var(--ink-2); line-height: 1.5; }
.consent a { color: var(--blue); font-weight: 600; }

/* ---------- Футер ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 60px; padding: 44px 0 28px; background: color-mix(in srgb, var(--surface) 60%, transparent); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 30px; }
.footer-grid h4 { font-size: 14px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 10px; }
.footer-grid a { display: block; color: var(--ink-2); text-decoration: none; font-size: 14.5px; padding: 3px 0; }
.footer-grid a:hover { color: var(--blue); }
.footer-bottom { margin-top: 26px; color: var(--muted); }

/* ---------- Адаптив ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cab-cols { grid-template-columns: 1fr; }
  .site-nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .section { padding: 60px 0; }
  .mod-row .mod-name { flex-basis: 120px; }
  .footer-grid { grid-template-columns: 1fr; }
  /* нав-кнопки не помещаются в строку при 3 кнопках (Курс/Кабинет/Выход) — переносим и уменьшаем */
  .site-nav-inner { flex-wrap: wrap; row-gap: 8px; }
  .site-nav-cta { gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
  .site-nav-cta .btn { padding: 9px 14px; font-size: 13.5px; }
  .brand { font-size: 18px; }
}