/* ─────────────────────────────────────────────
   Нейрика — редакционная асимметричная вёрстка
   Тёмная тема по умолчанию, светлая — data-theme="light"
   ───────────────────────────────────────────── */

:root {
  --bg: #0b0d13;
  --bg-alt: #0e1118;
  --surface: #121521;
  --surface-2: #171b29;
  --text: #eef0f7;
  --muted: #8f95a8;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --accent: #7b6ae8;
  --accent-2: #2dd4ec;
  --accent-hover: #9183ff;
  --accent-soft: rgba(123, 106, 232, 0.14);
  /* Градиент в палитре логотипа: светлый индиго → фиолетовый → глубокий сине-фиолетовый */
  --grad: linear-gradient(135deg, #9c8fff 0%, #6a58d8 45%, #453795 100%);
  --glow: 0 0 80px rgba(106, 88, 216, 0.28);
  --danger: #ff6470;
  --success: #34d399;
  --radius: 18px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Unbounded", "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 50px -20px rgba(0, 0, 0, 0.5);

  --hue-violet: #7b6ae8;
  --hue-cyan: #2dd4ec;
  --hue-emerald: #34d399;
  --hue-amber: #fbbf24;

  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #fafbfe;
  --bg-alt: #f2f4fa;
  --surface: #ffffff;
  --surface-2: #f6f7fc;
  --text: #14161f;
  --muted: #5e6475;
  --border: rgba(20, 22, 31, 0.09);
  --border-strong: rgba(20, 22, 31, 0.2);
  --accent: #4c3fae;
  --accent-2: #0891b2;
  --accent-hover: #3d3197;
  --accent-soft: rgba(76, 63, 174, 0.1);
  /* Светлая тема: цвета точно как у логотипа — фиолетовый → тёмный индиго */
  --grad: linear-gradient(135deg, #5b4bc4 0%, #43389c 55%, #262058 100%);
  --glow: 0 0 80px rgba(67, 56, 156, 0.12);
  --shadow-card: 0 1px 2px rgba(20, 22, 31, 0.04), 0 16px 40px -24px rgba(20, 22, 31, 0.18);

  --hue-violet: #4c3fae;
  --hue-cyan: #0891b2;
  --hue-emerald: #059669;
  --hue-amber: #d97706;

  color-scheme: light;
}

[data-accent="violet"] { --card-accent: var(--hue-violet); }
[data-accent="cyan"] { --card-accent: var(--hue-cyan); }
[data-accent="emerald"] { --card-accent: var(--hue-emerald); }
[data-accent="amber"] { --card-accent: var(--hue-amber); }

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  /* clip, а не hidden: hidden создаёт скролл-контейнер и ломает position: sticky */
  overflow-x: clip;
}

img { display: block; }
a { color: inherit; }
::selection { background: rgba(124, 108, 255, 0.35); }

h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.015em; }

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.4rem);
  font-weight: 600;
}

h3 { font-size: 1.15rem; font-weight: 700; }

p { margin: 0; }

.container {
  width: min(1180px, 100% - 2.5rem);
  margin-inline: auto;
}

/* Градиентный текст с переливом */
.grad-text {
  background: var(--grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-shift 6s ease-in-out infinite alternate;
}

@keyframes grad-shift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* Надзаголовок-нумератор */
.eyebrow {
  display: inline-block;
  font: 500 0.82rem/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}

/* ── Кнопки ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.68rem 1.4rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font: 700 0.95rem/1.2 var(--font);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease,
    transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:active { transform: translateY(1px); }

.btn-lg { padding: 0.9rem 1.8rem; font-size: 1rem; border-radius: 14px; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 28px -10px rgba(124, 108, 255, 0.65);
}
.btn-primary:hover {
  box-shadow: 0 10px 34px -8px rgba(124, 108, 255, 0.8);
  transform: translateY(-1px);
}

.btn-outline,
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-outline:hover,
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
}

/* ── Шапка ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.site-header.scrolled { border-bottom-color: var(--border); }

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  text-decoration: none;
}

.brand img { border-radius: 8px; }

.nav-links {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-links a {
  padding: 0.45rem 0.85rem;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav-links a:hover { color: var(--text); }
.nav-links a.is-active { color: var(--text); background: var(--accent-soft); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.18s ease, color 0.18s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.account-menu { position: relative; }

.account-menu-trigger {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.18s ease, color 0.18s ease;
}
.account-menu-trigger:hover { border-color: var(--accent); color: var(--accent); }
.account-menu-icon { display: inline-flex; width: 20px; height: 20px; }
.account-menu-icon svg { width: 100%; height: 100%; }

.account-menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 190px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.4rem;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  display: grid;
  gap: 2px;
}

.account-menu-item {
  border: none;
  background: none;
  text-align: left;
  padding: 0.55rem 0.85rem;
  border-radius: 9px;
  font: 600 0.92rem var(--font);
  color: var(--text);
  cursor: pointer;
}
.account-menu-item:hover { background: var(--accent-soft); }
.account-menu-item-primary { color: var(--accent); font-weight: 700; }

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: none;
  background: var(--grad);
  color: #fff;
  font: 700 0.95rem var(--font);
  cursor: pointer;
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  padding: 0 9px;
}
.burger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
}

.mobile-menu {
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.mobile-menu-panel {
  display: grid;
  padding: 0.75rem 1.25rem 1.25rem;
  gap: 0.15rem;
}

.mobile-nav-link {
  padding: 0.75rem 0.6rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  color: var(--text);
}
.mobile-nav-link:hover { background: var(--accent-soft); }
.mobile-nav-link-cta { color: var(--accent); }

/* ─────────────────────────────────────────────
   HERO — крупная типографика лесенкой
   ───────────────────────────────────────────── */
.hero {
  position: relative;
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
  overflow: hidden;
}

/* Фоновая сетка */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 30% 10%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 30% 10%, #000 20%, transparent 80%);
  pointer-events: none;
}

/* Цветное свечение */
.hero::after {
  content: "";
  position: absolute;
  top: -220px;
  right: -120px;
  width: 780px;
  height: 620px;
  background:
    radial-gradient(closest-side, rgba(124, 108, 255, 0.2), transparent 70%),
    radial-gradient(closest-side at 40% 70%, rgba(45, 212, 236, 0.12), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}

/* Вертикальная подпись сбоку */
.hero-rail {
  position: absolute;
  left: 0.9rem;
  top: 42%;
  transform: rotate(180deg);
  writing-mode: vertical-rl;
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.55;
  pointer-events: none;
}
.hero-rail span { display: inline-block; }

.hero .container { position: relative; z-index: 1; }

/* Крупный логотип-надпись, как вотермарк в подвале */
.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 12vw, 9rem);
  /* высота строки с запасом, иначе заливка обрезает краткую над «Й» */
  line-height: 1.12;
  padding-top: 0.04em;
  letter-spacing: -0.035em;
  text-transform: uppercase;
  background: var(--grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-shift 7s ease-in-out infinite alternate;
}

.hero-tagline {
  margin-top: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.9vw, 1.35rem);
  font-weight: 500;
  letter-spacing: -0.01em;
}

/* Плашка со стеком */
.hl-badge {
  font: 500 clamp(0.62rem, 0.95vw, 0.82rem) var(--font-mono);
  font-style: normal;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.4em 0.9em;
  white-space: nowrap;
}

.hero-bottom {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
}

.hero-lead {
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  color: var(--muted);
  max-width: 440px;
  border-left: 2px solid var(--accent);
  padding-left: 1.1rem;
}

.hero-cta {
  margin-top: 1.8rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* Код-окно */
.hero-visual { position: relative; }

.code-window {
  background: #0d1017;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: var(--shadow-card), var(--glow);
  overflow: hidden;
  transform: rotate(1deg);
  transition: transform 0.35s ease;
}
.hero-visual:hover .code-window { transform: rotate(0deg); }

.code-window-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.code-window-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}
.code-window-bar span:nth-child(1) { background: #ff5f57; }
.code-window-bar span:nth-child(2) { background: #febc2e; }
.code-window-bar span:nth-child(3) { background: #28c840; }

.code-window-bar em {
  margin-left: auto;
  font: 500 0.78rem var(--font-mono);
  font-style: normal;
  color: rgba(255, 255, 255, 0.45);
}

.code-body {
  margin: 0;
  padding: 1.1rem 1.3rem 1.3rem;
  font: 400 0.8rem/1.7 var(--font-mono);
  color: #d7dce6;
  overflow-x: auto;
}

.c-kw { color: #c792ea; }
.c-fn { color: #6cb2ff; }
.c-str { color: #a5e28c; }
.c-num { color: #f2a25c; }
.c-cm { color: #5b6474; font-style: italic; }

/* Факты — линия карточек */
.hero-facts {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}

.hero-facts div {
  padding: 1.4rem 1.5rem 0.3rem 0;
  border-right: 1px solid var(--border);
}
.hero-facts div:last-child { border-right: none; }
.hero-facts div + div { padding-left: 1.5rem; }

.hero-facts dt {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  font-weight: 600;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-facts dd {
  margin: 0.3rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 220px;
}

/* ─────────────────────────────────────────────
   Наклонная бегущая лента
   ───────────────────────────────────────────── */
.ticker-band { overflow: hidden; }

.ticker {
  background: var(--grad);
  padding: 0.8rem 0;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-track {
  display: inline-flex;
  animation: ticker-scroll 28s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }

.ticker-group {
  display: inline-flex;
  align-items: center;
  gap: 1.8rem;
  padding-right: 1.8rem;
}

.ticker-group span {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
}

.ticker-group i {
  font-style: normal;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.6);
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ─────────────────────────────────────────────
   Манифест — крупная цитата
   ───────────────────────────────────────────── */
.manifest { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }

.manifest-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 3vw, 2.2rem);
  align-items: start;
  max-width: 950px;
}

.quote-mark {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.8;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.manifest-inner p {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.75rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.015em;
}

/* ─────────────────────────────────────────────
   Секции
   ───────────────────────────────────────────── */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }

.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }

.section-lead { margin-top: 0.9rem; color: var(--muted); font-size: 1rem; }

/* Заголовок в строку: слева заголовок, справа примечание */
.head-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: end;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.head-note {
  max-width: 320px;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: right;
}

/* Раскладка: липкая колонка слева + контент справа */
.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.split-sticky {
  position: sticky;
  top: 110px;
}

.split-sticky h2 { margin-bottom: 0; }
.split-sticky .btn { margin-top: 1.6rem; }

/* ─────────────────────────────────────────────
   Направления — стопка липких карточек
   ───────────────────────────────────────────── */
.stack {
  display: grid;
  gap: 1.2rem;
}

.stack-card {
  position: sticky;
  top: calc(100px + var(--i) * 20px);
  display: grid;
  gap: 0.9rem;
  padding: clamp(1.5rem, 3vw, 2.2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

/* Цветная полоса слева и свечение в углу */
.stack-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--card-accent, var(--accent));
}

.stack-card::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--card-accent, var(--accent)) 20%, transparent), transparent);
  pointer-events: none;
  transition: transform 0.4s ease;
}

.stack-card:hover { border-color: color-mix(in srgb, var(--card-accent, var(--accent)) 50%, transparent); }
.stack-card:hover::after { transform: scale(1.3); }

.stack-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.stack-num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--card-accent, var(--accent)) 70%, transparent);
}

.course-tag {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
  background: color-mix(in srgb, var(--card-accent, var(--accent)) 14%, transparent);
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
}

.stack-card h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }
.stack-card > p { color: var(--muted); font-size: 0.97rem; }

.stack-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stack-list li {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
}

.course-cta {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--card-accent, var(--accent));
  text-decoration: none;
}
.course-cta::after {
  content: "→";
  transition: transform 0.2s ease;
}
.course-cta:hover::after { transform: translateX(5px); }

/* ─────────────────────────────────────────────
   Цены — бенто-сетка
   ───────────────────────────────────────────── */
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.bento-price {
  grid-column: span 2;
  grid-row: span 2;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.6rem, 3vw, 2.3rem);
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card), var(--glow);
}

/* Градиентная рамка */
.bento-price::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.bento-label {
  font: 500 0.8rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.price-huge {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1;
  margin-top: 0.6rem;
  background: var(--grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-shift 7s ease-in-out infinite alternate;
}
.price-huge em { font-style: normal; font-size: 0.45em; margin-left: 0.12em; }

.bento-sub { margin-top: 0.5rem; color: var(--muted); font-size: 0.95rem; }

.pricing-perks {
  list-style: none;
  margin: 1.4rem 0 1.8rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  font-size: 0.95rem;
}

.pricing-perks li { padding-left: 1.5rem; position: relative; }
.pricing-perks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-2);
  font-weight: 700;
}

.bento-price .btn { margin-top: auto; align-self: flex-start; }

.package-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.4rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.package-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  border-radius: 0 0 14px 14px;
  background: var(--card-accent, var(--accent));
  opacity: 0.7;
}

.package-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--card-accent, var(--accent)) 50%, transparent);
}

.package-flag {
  position: absolute;
  top: -10px;
  right: 14px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #14161f;
  background: var(--hue-amber);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.package-goal {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
}

.package-lessons {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
}

.package-price {
  margin-top: auto;
  padding-top: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  display: grid;
}

.package-price em {
  font-style: normal;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.8rem;
}

/* ─────────────────────────────────────────────
   Как начать — диагональная лесенка
   ───────────────────────────────────────────── */
.stairs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: stair;
}

.stair {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.3rem;
  align-items: center;
  padding: 1.5rem 1.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

/* Каждый следующий шаг сдвинут правее */
.stair:nth-child(1) { width: 78%; }
.stair:nth-child(2) { width: 86%; margin-left: 8%; }
.stair:nth-child(3) { width: 92%; margin-left: 16%; }

.stair:hover {
  transform: translateX(6px);
  border-color: color-mix(in srgb, var(--card-accent, var(--accent)) 50%, transparent);
}

.stair-num {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--card-accent, var(--accent));
  border: 1.5px dashed color-mix(in srgb, var(--card-accent, var(--accent)) 60%, transparent);
  background: color-mix(in srgb, var(--card-accent, var(--accent)) 10%, transparent);
}

.stair p { margin-top: 0.3rem; color: var(--muted); font-size: 0.95rem; }

/* ─────────────────────────────────────────────
   FAQ
   ───────────────────────────────────────────── */
.faq-list { display: grid; gap: 0.7rem; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color 0.2s ease;
}
.faq-item[open] { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 3rem 1.1rem 1.3rem;
  font-weight: 700;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.35rem;
  font-weight: 300;
  color: var(--accent);
}
.faq-item[open] summary::after { content: "–"; }

.faq-answer { padding: 0 1.3rem 1.2rem; color: var(--muted); }
.faq-link { color: var(--accent); font-weight: 700; }

/* ─────────────────────────────────────────────
   Финальный экран
   ───────────────────────────────────────────── */
.closing {
  position: relative;
  padding: clamp(4rem, 10vw, 7rem) 0;
  overflow: hidden;
  text-align: center;
}

.closing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 50% 50%, rgba(124, 108, 255, 0.18), transparent 70%);
  pointer-events: none;
}

.closing-inner { position: relative; z-index: 1; }

.closing-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5.5vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.closing-lead {
  margin: 1.2rem auto 0;
  max-width: 460px;
  color: var(--muted);
}

/* Крупная ссылка-хендл */
.tg-handle {
  margin-top: 2.4rem;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.6rem 0.9rem 2rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.8rem);
  font-weight: 600;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.tg-handle i {
  display: grid;
  place-items: center;
  width: 1.05em;
  height: 1.05em;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  transition: transform 0.2s ease;
}

.tg-handle i svg {
  width: 52%;
  height: 52%;
  display: block;
}

.tg-handle:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 20px 45px -20px rgba(124, 108, 255, 0.7);
}
.tg-handle:hover i { transform: translateX(4px); }

.contact-note {
  margin-top: 1.3rem;
  color: var(--muted);
  font-size: 0.88rem;
}

/* ─────────────────────────────────────────────
   Подвал
   ───────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.8rem 0 1.6rem;
  overflow: hidden;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1.3rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.footer-links a,
.socials a {
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.footer-links a:hover,
.socials a:hover { color: var(--text); }

.socials { display: flex; gap: 1rem; }

/* Крупный вотермарк */
.footer-mark {
  margin: 1.5rem 0 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(3rem, 15vw, 11rem);
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1px var(--border-strong);
  user-select: none;
  pointer-events: none;
}

.footer-privacy {
  margin-top: 1.4rem;
  max-width: 640px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--muted);
  opacity: 0.85;
}

.footer-bottom {
  margin-top: 1.2rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--muted);
}

.link-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* ─────────────────────────────────────────────
   Модалки
   ───────────────────────────────────────────── */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 1.25rem; }
.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 6, 10, 0.65);
  backdrop-filter: blur(6px);
}

.modal-dialog {
  position: relative;
  width: min(430px, 100%);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem 0;
}

.modal-title { font-size: 1.15rem; }

.modal-close {
  border: none;
  background: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem;
}
.modal-close:hover { color: var(--text); }

.modal-body {
  padding: 1.1rem 1.5rem 1.5rem;
  display: grid;
  gap: 0.9rem;
}

.modal-body label { display: grid; gap: 0.4rem; font-size: 0.9rem; font-weight: 600; }

.modal-body input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font: 500 0.95rem var(--font);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.modal-body input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.modal-lead { color: var(--muted); font-size: 0.92rem; }

.modal-actions { display: flex; align-items: center; gap: 0.9rem; flex-wrap: wrap; }

.modal-switch { font-size: 0.9rem; color: var(--muted); }

.form-status { font-size: 0.9rem; font-weight: 600; }

.requests { display: grid; gap: 0.5rem; }

.request-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
}

.request-left { display: grid; gap: 0.1rem; }
.request-topic { font-weight: 700; font-size: 0.92rem; }
.request-date { font-size: 0.8rem; color: var(--muted); }

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.badge.success { background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.badge.progress { background: var(--accent-soft); color: var(--accent); }

/* ─────────────────────────────────────────────
   Появление при скролле
   ───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1), transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.in-view { opacity: 1; transform: none; }
.reveal[data-delay="2"] { transition-delay: 0.08s; }
.reveal[data-delay="3"] { transition-delay: 0.16s; }
.reveal[data-delay="4"] { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ticker-track,
  .grad-text,
  .price-huge { animation: none; }
}

/* ─────────────────────────────────────────────
   Адаптив
   ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  .hero-rail { display: none; }
}

@media (max-width: 1024px) {
  .hero-bottom { grid-template-columns: 1fr; align-items: start; }
  .hero-visual { max-width: 560px; }
  .split { grid-template-columns: 1fr; }
  .split-sticky { position: static; }
  /* На узких экранах стопка превращается в обычный список */
  .stack-card { position: static; }
}

@media (max-width: 900px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento-price { grid-column: span 2; grid-row: auto; }
  .stair:nth-child(1),
  .stair:nth-child(2),
  .stair:nth-child(3) { width: 100%; margin-left: 0; }
}

@media (max-width: 879px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .burger { display: flex; }
}

@media (min-width: 880px) {
  .mobile-menu { display: none; }
}

@media (max-width: 720px) {
  .head-row { grid-template-columns: 1fr; align-items: start; }
  .head-note { text-align: left; max-width: none; }
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts div {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
  }
  .hero-facts div + div { padding-left: 0; }
  .hero-facts div:last-child { border-bottom: none; }
  .hero-facts dd { max-width: none; }
}

@media (max-width: 560px) {
  .bento { grid-template-columns: 1fr; }
  .bento-price { grid-column: auto; }
  .code-window { transform: none; }
  .stair { grid-template-columns: 1fr; gap: 0.9rem; }
  .manifest-inner { grid-template-columns: 1fr; }
}