/* ═══════════════════════════════════════════════════════
   ПРИВГУПС — Основные стили и темизация
   ═══════════════════════════════════════════════════════ */

/* ── CSS-переменные (тёмная тема) ── */
:root {
  --bg-primary: #07080d;
  --bg-secondary: #05060a;
  --bg-card: linear-gradient(145deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  --bg-card-hover: linear-gradient(145deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  --bg-section-alt: rgba(255,255,255,0.015);
  --bg-input: rgba(255,255,255,0.03);
  --text-primary: #e2e8f0;
  --text-secondary: #f1f5f9;
  --text-muted: #64748b;
  --text-dim: #475569;
  --text-nav: #94a3b8;
  --border-color: rgba(255,255,255,0.06);
  --border-light: rgba(255,255,255,0.04);
  --border-input: rgba(255,255,255,0.08);
  --accent: #3b82f6;
  --accent-rgb: 59, 130, 246;
  --accent-light: #60a5fa;
  --accent-dark: #2563eb;
  --accent-dark-rgb: 37, 99, 235;
  --gradient-accent: linear-gradient(135deg, #1e40af, #3b82f6);
  --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa, #60a5fa);
  --gradient-hero: radial-gradient(ellipse 700px 500px at 10% 30%, rgba(37,99,235,0.07), transparent),
                   radial-gradient(ellipse 500px 500px at 90% 70%, rgba(139,92,246,0.05), transparent);
  --shadow-card: 0 16px 48px rgba(0,0,0,0.3);
  --shadow-btn: 0 4px 20px rgba(37,99,235,0.3);
  --shadow-btn-hover: 0 8px 32px rgba(37,99,235,0.45);
  --scrollbar-track: #07080d;
  --scrollbar-thumb: #1e293b;
  --scrollbar-thumb-hover: #334155;
  --stat-bg: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(59,130,246,0.04));
  --stat-border: rgba(59,130,246,0.1);
  --logo-shadow: 0 4px 16px rgba(59,130,246,0.25);
  --header-bg: rgba(7,8,13,0.85);
}

/* ── CSS-переменные (светлая тема) ── */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: linear-gradient(145deg, #ffffff, #f8fafc);
  --bg-card-hover: linear-gradient(145deg, #ffffff, #f1f5f9);
  --bg-section-alt: #f1f5f9;
  --bg-input: #f8fafc;
  --text-primary: #1e293b;
  --text-secondary: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-nav: #475569;
  --border-color: #e2e8f0;
  --border-light: #e2e8f0;
  --border-input: #e2e8f0;
  --accent: #2563eb;
  --accent-rgb: 37, 99, 235;
  --accent-light: #3b82f6;
  --accent-dark: #1d4ed8;
  --accent-dark-rgb: 29, 78, 216;
  --gradient-accent: linear-gradient(135deg, #1e40af, #3b82f6);
  --gradient-text: linear-gradient(135deg, #2563eb, #7c3aed, #2563eb);
  --gradient-hero: radial-gradient(ellipse 700px 500px at 10% 30%, rgba(37,99,235,0.06), transparent),
                   radial-gradient(ellipse 500px 500px at 90% 70%, rgba(139,92,246,0.04), transparent);
  --shadow-card: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-btn: 0 4px 16px rgba(37,99,235,0.25);
  --shadow-btn-hover: 0 8px 24px rgba(37,99,235,0.35);
  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;
  --scrollbar-thumb-hover: #94a3b8;
  --stat-bg: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(37,99,235,0.02));
  --stat-border: rgba(37,99,235,0.1);
  --logo-shadow: 0 4px 16px rgba(37,99,235,0.2);
  --header-bg: rgba(248,250,252,0.9);
}

/* ── Сброс и базовая типографика ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background .4s ease, color .4s ease;
}
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Прелоадер (экран загрузки) ── */
.preloader {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 30%, #0c1a3a 0%, #050810 100%);
  transition: opacity .8s ease, visibility .8s ease;
  overflow: hidden;
}
.preloader.hidden {
  opacity: 0; visibility: hidden;
  pointer-events: none;
}
/* ── Фоновый светящийся круг ── */
.preloader-glow {
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.08), transparent 70%);
  top: 40%; left: 50%; transform: translate(-50%,-50%);
  animation: glow-pulse 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes glow-pulse {
  0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%,-50%) scale(1.2); opacity: 1; }
}
/* ── ИТЖТ — крупный логотип ── */
.preloader-logo {
  display: flex; align-items: center; gap: 2px;
  z-index: 2; margin-bottom: 8px;
}
.preloader-logo-letter {
  font-size: 52px; font-weight: 900;
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #60a5fa);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: logo-shimmer 2s ease-in-out infinite;
  line-height: 1;
  letter-spacing: -2px;
}
.preloader-logo-letter:nth-child(2) { animation-delay: .15s; }
.preloader-logo-letter:nth-child(3) { animation-delay: .3s; }
.preloader-logo-letter:nth-child(4) { animation-delay: .45s; }
@keyframes logo-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
/* ── Под логотипом: подчёркивание-рельса ── */
.preloader-underline {
  width: 180px; height: 3px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.6), rgba(167,139,250,0.6), transparent);
  border-radius: 2px;
  margin-bottom: 36px; z-index: 2;
  position: relative; overflow: hidden;
}
.preloader-underline::after {
  content: ''; position: absolute; top: 0; left: -40%;
  width: 40%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: underline-shine 1.8s ease-in-out infinite;
}
@keyframes underline-shine {
  0% { left: -40%; }
  100% { left: 140%; }
}
/* ── Прогресс-бар ── */
.preloader-progress {
  width: 220px; z-index: 2;
  margin-bottom: 24px;
}
.preloader-progress-track {
  width: 100%; height: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px; overflow: hidden;
}
.preloader-progress-fill {
  height: 100%; width: 0%;
  border-radius: 4px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa, #a78bfa);
  animation: fill-bar 2.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  box-shadow: 0 0 12px rgba(59,130,246,0.4);
}
@keyframes fill-bar {
  0% { width: 0%; }
  100% { width: 100%; }
}
/* ── Текст загрузки ── */
.preloader-sub {
  font-size: 13px; font-weight: 400;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  z-index: 2;
  animation: sub-fade 1.2s ease-in-out infinite alternate;
}
@keyframes sub-fade {
  0% { opacity: 0.3; }
  100% { opacity: 0.7; }
}

/* ── Скроллбар ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
html { scrollbar-width: thin; scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track); }

/* ── Верхняя панель ── */
.top-bar {
  background: var(--bg-secondary);
  color: var(--text-dim);
  font-size: 13px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
  transition: background .4s;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar a { color: var(--text-nav); transition: color .3s; }
.top-bar a:hover { color: var(--accent-light); }
.top-bar-links { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }

/* ── Шапка сайта ── */
.main-header {
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  position: sticky; top: 0; z-index: 100;
  transition: background .4s;
}
.main-header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo-wrap { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.logo-icon {
  width: 48px; height: 48px;
  background: var(--gradient-accent);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 900; font-size: 22px;
  box-shadow: var(--logo-shadow);
  transition: box-shadow .3s;
}
/* Анимация пульсации логотипа при наведении */
.logo-icon:hover { animation: logo-pulse 1s ease-in-out infinite; }
@keyframes logo-pulse {
  0%, 100% { box-shadow: var(--logo-shadow); }
  50% { box-shadow: 0 4px 24px rgba(var(--accent-rgb), 0.45); }
}
.logo-text { font-weight: 700; font-size: 18px; color: var(--text-secondary); line-height: 1.2; transition: color .4s; }
.logo-text small { font-weight: 400; font-size: 12px; color: var(--text-muted); display: block; }

.header-actions { display: flex; align-items: center; gap: 8px; }
.main-nav { display: flex; gap: 4px; }
.main-nav a {
  padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 500;
  color: var(--text-nav); transition: all .25s; white-space: nowrap;
  position: relative;
}
.main-nav a::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--accent); border-radius: 1px;
  transition: width .25s ease;
}
.main-nav a:hover { color: var(--text-secondary); background: rgba(var(--accent-rgb), 0.08); }
.main-nav a:hover::after { width: 16px; }
.main-nav a.active { color: var(--accent-light); background: rgba(var(--accent-rgb), 0.1); }
.main-nav a.active::after { width: 16px; }

.icon-btn {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: none; cursor: pointer;
  color: var(--text-nav); font-size: 18px;
  transition: all .25s;
}
.icon-btn:hover { background: rgba(var(--accent-rgb), 0.1); color: var(--accent-light); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.menu-toggle span { display: block; width: 26px; height: 2.5px; background: var(--text-primary); border-radius: 2px; transition: .3s; }

/* ── Главный экран (Hero) ── */
.hero {
  min-height: 92vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: var(--bg-secondary);
  transition: background .4s;
}
.hero-canvas { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-canvas canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.hero-overlay {
  position: absolute; inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; padding: 140px 24px 80px; }
.hero-content { max-width: 780px; }
/* Бейдж с пульсирующей точкой */
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(var(--accent-rgb), 0.1);
  padding: 6px 18px 6px 12px; border-radius: 100px;
  font-size: 13px; font-weight: 500; margin-bottom: 24px;
  border: 1px solid rgba(var(--accent-rgb), 0.2);
  color: var(--accent-light);
}
.hero-badge .dot {
  width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.8)} }
.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900; line-height: 1.08;
  color: var(--text-secondary); margin-bottom: 20px;
  letter-spacing: -0.02em;
  transition: color .4s;
}
/* Анимация градиентного текста */
.hero h1 .gradient-text {
  background: var(--gradient-text);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease-in-out infinite;
}
@keyframes gradient-shift { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }
.hero p { font-size: 18px; color: var(--text-muted); max-width: 580px; margin-bottom: 36px; line-height: 1.7; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
/* Кнопки */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 10px; font-weight: 600; font-size: 15px;
  transition: all .3s cubic-bezier(.4,0,.2,1); cursor: pointer; border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  box-shadow: var(--shadow-btn);
}
/* Свечение кнопки при наведении */
.btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-btn-hover); }
/* Пульсация свечения основной CTA-кнопки */
.cta-box .btn-primary {
  animation: cta-glow 2.5s ease-in-out infinite;
}
@keyframes cta-glow {
  0%, 100% { box-shadow: var(--shadow-btn); }
  50% { box-shadow: 0 4px 32px rgba(var(--accent-rgb), 0.5); }
}
.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1.5px solid rgba(148, 163, 184, 0.25);
}
.btn-outline:hover { border-color: rgba(var(--text-primary), 0.4); background: rgba(var(--accent-rgb), 0.04); transform: translateY(-3px); }
/* Статистика на герое */
.hero-stats { display: flex; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
.hero-stat .num { font-size: 36px; font-weight: 900; color: var(--text-secondary); display: block; line-height: 1; transition: color .4s; }
.hero-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ── Общие стили секций ── */
.section { padding: 100px 0; transition: background .4s; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: clamp(28px, 3vw, 38px); font-weight: 800; color: var(--text-secondary); letter-spacing: -0.01em; transition: color .4s; }
.section-header p { color: var(--text-muted); margin-top: 10px; font-size: 16px; max-width: 600px; margin-left: auto; margin-right: auto; }
.section-tag {
  display: inline-block; padding: 5px 16px; border-radius: 100px;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em;
  background: rgba(var(--accent-rgb), 0.1); color: var(--accent-light);
  border: 1px solid rgba(var(--accent-rgb), 0.15); margin-bottom: 16px;
}

/* ── Секция «Об университете» ── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h3 { font-size: 24px; font-weight: 700; color: var(--text-secondary); margin-bottom: 16px; transition: color .4s; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 15px; line-height: 1.7; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.about-feature { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-primary); }
.about-feature .check { color: #34d399; font-weight: 700; font-size: 18px; }
.about-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
/* Карточка статистики с анимацией парения */
.stat-card {
  border-radius: 16px; padding: 32px; text-align: center;
  border: 1px solid var(--stat-border);
  background: var(--stat-bg);
  transition: all .3s;
}
.stat-card:hover { transform: translateY(-4px); }
.stat-card .num { font-size: 48px; font-weight: 900; display: block; line-height: 1; }
.stat-card .lbl { color: var(--text-muted); font-size: 14px; margin-top: 4px; }

/* Анимация парения для карточек статистики */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}
.stat-card:nth-child(1) { animation: float 5s ease-in-out infinite; }
.stat-card:nth-child(2) { animation: float 5.5s ease-in-out infinite 0.5s; }
.stat-card:nth-child(3) { animation: float 6s ease-in-out infinite 1s; }
.stat-card:nth-child(4) { animation: float 6.5s ease-in-out infinite 1.5s; }

/* ── Секция структуры ── */
.structure-section {
  background: var(--bg-section-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.struct-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.struct-card {
  background: var(--bg-card);
  border-radius: 14px; padding: 24px;
  border: 1px solid var(--border-color);
  transition: all .35s;
}
.struct-card:hover { border-color: rgba(var(--accent-rgb), 0.2); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.struct-card h4 { font-size: 15px; font-weight: 600; color: var(--text-secondary); margin-bottom: 10px; }
.struct-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.struct-card a { color: var(--accent-light); font-size: 13px; display: inline-block; margin-top: 8px; }
.struct-card a:hover { text-decoration: underline; }
.struct-card .badge {
  display: inline-block; padding: 2px 10px; border-radius: 100px;
  font-size: 11px; font-weight: 600; margin-bottom: 10px;
}

/* ── Карточки направлений (образование, наука, культура) ── */
.dir-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 20px; }
.dir-card {
  background: var(--bg-card);
  border-radius: 16px; padding: 32px 28px;
  border: 1px solid var(--border-color);
  transition: all .4s cubic-bezier(.4,0,.2,1);
  position: relative; overflow: hidden;
}
/* Полоска акцента при наведении */
.dir-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.4), transparent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s ease;
}
.dir-card:hover::before { transform: scaleX(1); }
.dir-card:hover { border-color: rgba(var(--accent-rgb), 0.2); transform: translateY(-4px); box-shadow: var(--shadow-card); background: var(--bg-card-hover); }
.dir-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 18px; }
.dir-card h3 { font-size: 17px; font-weight: 600; color: var(--text-secondary); margin-bottom: 10px; }
.dir-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.dir-card .sub-links { margin-top: 14px; }
.dir-card .sub-links a { display: block; font-size: 13px; color: var(--accent-light); padding: 3px 0; }
.dir-card .sub-links a:hover { color: var(--accent); }

/* ── Сетка филиалов ── */
.branch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.branch-card {
  background: rgba(var(--accent-rgb), 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px; padding: 20px;
  text-align: center; transition: all .3s;
}
.branch-card:hover { border-color: rgba(var(--accent-rgb), 0.2); background: rgba(var(--accent-rgb), 0.04); transform: translateY(-2px); }
.branch-card .city { font-size: 15px; font-weight: 600; color: var(--text-secondary); }
.branch-card .name { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ── Новости ── */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }
.news-card {
  background: var(--bg-card);
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all .4s cubic-bezier(.4,0,.2,1);
}
.news-card:hover { transform: translateY(-6px); border-color: rgba(var(--accent-rgb), 0.2); box-shadow: var(--shadow-card); }
.news-card-img { height: 200px; display: flex; align-items: center; justify-content: center; font-size: 14px; position: relative; overflow: hidden; }
.news-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, var(--bg-primary)); }
.news-card-body { padding: 24px; }
.news-card-date { font-size: 12px; color: var(--text-dim); margin-bottom: 10px; }
.news-card h3 { font-size: 17px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; line-height: 1.4; }
.news-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.news-card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; font-weight: 500; color: var(--accent-light); transition: gap .3s; }
.news-card-link:hover { gap: 10px; }

/* ── CTA-секция (призыв к действию) ── */
.cta-section {
  background: linear-gradient(135deg, rgba(var(--accent-dark-rgb), 0.06), rgba(139,92,246,0.04));
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.cta-box { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-box h2 { font-size: 32px; font-weight: 800; color: var(--text-secondary); margin-bottom: 12px; }
.cta-box p { color: var(--text-muted); margin-bottom: 28px; font-size: 16px; }

/* ── Контакты ── */
.contact-section { border-top: 1px solid var(--border-light); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info h3 { font-size: 22px; font-weight: 700; color: var(--text-secondary); margin-bottom: 20px; }
.contact-info p { color: var(--text-muted); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; font-size: 15px; }
.contact-info .phone { font-size: 26px; font-weight: 800; color: var(--text-secondary); margin: 12px 0; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form input, .contact-form textarea {
  padding: 14px 18px;
  border: 1px solid var(--border-input);
  border-radius: 10px;
  font-family: inherit; font-size: 14px;
  outline: none; transition: all .25s;
  background: var(--bg-input);
  color: var(--text-primary);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-dim); }
.contact-form input:focus, .contact-form textarea:focus {
  border-color: rgba(var(--accent-rgb), 0.4);
  background: rgba(var(--accent-rgb), 0.02);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.08);
}
.contact-form textarea { resize: vertical; min-height: 110px; }

/* ── Подвал (Footer) ── */
.footer { background: var(--bg-secondary); border-top: 1px solid var(--border-light); padding: 56px 0 24px; transition: background .4s; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer h4 { color: var(--text-secondary); font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.footer a { color: var(--text-muted); display: block; margin-bottom: 10px; font-size: 14px; transition: all .25s; }
/* Плавный сдвиг ссылок подвала при наведении */
.footer a:hover { color: var(--accent-light); transform: translateX(4px); }
.footer p { font-size: 14px; line-height: 1.7; color: var(--text-dim); }
.footer-bottom { border-top: 1px solid var(--border-light); padding-top: 20px; text-align: center; font-size: 13px; color: var(--text-dim); }

/* ── Карусель партнёров ── */
.partners-carousel { overflow: hidden; position: relative; }
.partners-track {
  display: flex; gap: 32px; animation: scroll-partners 35s linear infinite;
  padding: 16px 0;
}
@keyframes scroll-partners {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.partners-track:hover { animation-play-state: paused; }
.partner-logo {
  flex-shrink: 0; width: 150px; text-align: center;
  transition: all .3s;
}
/* Анимация масштабирования логотипа при наведении */
.partner-logo:hover { transform: translateY(-6px); }
.logo-placeholder {
  width: 110px; height: 90px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 10px;
  border: 1px solid var(--border-color); transition: all .3s;
  background: rgba(var(--accent-rgb), 0.03);
  color: var(--accent-light);
}
.logo-placeholder svg { max-width: 80%; max-height: 60%; }
.logo-placeholder img { max-width: 85%; max-height: 65%; object-fit: contain; }
.partner-logo:hover .logo-placeholder { border-color: rgba(var(--accent-rgb), 0.25); background: rgba(var(--accent-rgb), 0.06); }
.partner-logo span { font-size: 12px; color: var(--text-muted); display: block; line-height: 1.3; }

/* ── Кнопка «Наверх» ── */
.scroll-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 99;
  width: 52px; height: 52px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff; border: none; cursor: pointer; font-size: 22px;
  box-shadow: 0 4px 20px rgba(37,99,235,0.3);
  transition: all .35s cubic-bezier(.4,0,.2,1);
  opacity: 0; visibility: hidden; transform: translateY(20px);
  display: flex; align-items: center; justify-content: center;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(37,99,235,0.45); }
.scroll-top:active { transform: translateY(-1px); }

/* ── Анимации появления (reveal) ── */
body { animation: page-fade-in .35s ease-out; }
@keyframes page-fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ── Поиск по сайту ── */
.search-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  align-items: center; padding: 80px 24px;
  opacity: 0; visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.search-overlay.open { opacity: 1; visibility: visible; }
.search-overlay-close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: none; color: var(--text-primary);
  font-size: 22px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.search-overlay-close:hover { background: rgba(255,255,255,0.12); }
.search-overlay-input {
  width: 100%; max-width: 600px;
  padding: 18px 24px; border-radius: 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  font-family: inherit; font-size: 20px;
  outline: none; transition: border-color .2s;
}
.search-overlay-input:focus { border-color: var(--accent-light); }
.search-overlay-input::placeholder { color: var(--text-dim); }
.search-overlay-results {
  width: 100%; max-width: 600px;
  margin-top: 24px; overflow-y: auto;
  flex: 1; max-height: 60vh;
}
.search-result-item {
  display: block;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px; padding: 14px 18px;
  margin-bottom: 8px; transition: all .2s;
}
.search-result-item:hover {
  background: rgba(var(--accent-rgb), 0.08);
  border-color: rgba(var(--accent-rgb), 0.2);
}
.search-result-title {
  font-size: 15px; font-weight: 600;
  color: var(--text-secondary);
}
.search-result-text {
  font-size: 13px; color: var(--text-muted);
  margin-top: 4px; line-height: 1.4;
}
.search-empty {
  text-align: center; color: var(--text-dim);
  font-size: 15px; margin-top: 40px;
}
.search-hint {
  text-align: center; color: var(--text-dim);
  font-size: 14px; margin-top: 40px;
}

.reveal { opacity: 0; transform: translateY(40px); transition: all .7s cubic-bezier(.4,0,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Внутренние страницы ── */
.page-hero {
  padding: 120px 0 60px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
}
.page-hero-content { max-width: 780px; }
.page-hero-content h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 900; line-height: 1.1;
  color: var(--text-secondary); margin: 16px 0;
}
.page-hero-content p { font-size: 17px; color: var(--text-muted); line-height: 1.7; }
.content-grid {
  display: grid; grid-template-columns: 1fr 300px;
  gap: 48px; align-items: start;
}
.content-main h2 {
  font-size: 26px; font-weight: 700;
  color: var(--text-secondary); margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}
.content-main h2:first-child { margin-top: 0; }
/* ── Страница новостей ── */
.news-detail-grid {
  display: flex; flex-direction: column;
  gap: 24px; max-width: 800px; margin: 0 auto;
}
.news-back {
  font-size: 14px; color: var(--accent-light);
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap .3s; width: fit-content;
}
.news-back:hover { gap: 10px; }
.news-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px; overflow: hidden;
}
.news-detail-img { height: 240px; }
.news-detail-body { padding: 32px; }
.news-detail-body h1 {
  font-size: 26px; font-weight: 800;
  color: var(--text-secondary); margin: 12px 0 20px;
  line-height: 1.3;
}
.news-detail-body p {
  font-size: 16px; color: var(--text-muted);
  line-height: 1.8; margin-bottom: 16px;
}

.content-main h3 {
  font-size: 20px; font-weight: 600;
  color: var(--text-secondary); margin: 28px 0 12px;
}
.content-main p { color: var(--text-muted); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.content-list { list-style: none; margin: 16px 0 24px; }
.content-list li {
  padding: 10px 0 10px 28px;
  position: relative; color: var(--text-primary);
  font-size: 15px; border-bottom: 1px solid var(--border-light);
}
.content-list li::before {
  content: '✓'; position: absolute; left: 0;
  color: #34d399; font-weight: 700; font-size: 16px;
}
.content-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px; padding: 24px;
}
.sidebar-card h3 {
  font-size: 15px; font-weight: 600;
  color: var(--text-secondary); margin-bottom: 16px;
}
.sidebar-card a {
  display: block; font-size: 13px;
  color: var(--accent-light); padding: 5px 0;
  transition: color .2s;
}
.sidebar-card a:hover { color: var(--accent); }
.fact-row {
  display: flex; justify-content: space-between;
  padding: 8px 0; font-size: 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-muted);
}
.fact-row strong { color: var(--text-primary); }
.fact-row:last-child { border-bottom: none; }
.staff-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px; margin: 20px 0;
}
.staff-card {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 12px; padding: 16px 20px;
  transition: all .3s;
}
.staff-card:hover { border-color: rgba(var(--accent-rgb), 0.2); transform: translateY(-2px); }
.staff-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 16px;
  flex-shrink: 0;
}
.staff-name { font-size: 15px; font-weight: 600; color: var(--text-secondary); }
.staff-role { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.staff-phone { font-size: 12px; color: var(--accent-light); margin-top: 2px; }

/* ── Список образовательных программ ── */
.program-list { display: flex; flex-direction: column; gap: 8px; margin: 16px 0 32px; }
.program-item {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 10px; padding: 14px 18px;
  transition: all .25s;
}
.program-item:hover { border-color: rgba(var(--accent-rgb), 0.2); background: var(--bg-card-hover); }
.program-code {
  font-size: 12px; font-weight: 600; color: var(--accent-light);
  background: rgba(var(--accent-rgb), 0.1);
  padding: 4px 8px; border-radius: 6px;
  white-space: nowrap; flex-shrink: 0;
  font-family: monospace;
}
.program-info { flex: 1; min-width: 0; }
.program-title { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.program-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.program-badge {
  font-size: 11px; color: var(--text-dim);
  background: var(--bg-section-alt);
  padding: 3px 10px; border-radius: 100px;
  white-space: nowrap; flex-shrink: 0;
}

/* ── Карточки контактов на странице контактов ── */
.contact-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 14px; padding: 24px; margin-bottom: 24px;
}
.contact-card-row {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 12px 0; border-bottom: 1px solid var(--border-light);
}
.contact-card-row:last-child { border-bottom: none; }
.contact-card-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.contact-card-label { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.contact-card-value { font-size: 15px; color: var(--text-primary); font-weight: 500; }
.contact-page-form {
  display: flex; flex-direction: column; gap: 16px;
  margin: 20px 0 40px;
}
.contact-page-form input,
.contact-page-form select,
.contact-page-form textarea {
  padding: 14px 18px;
  border: 1px solid var(--border-input);
  border-radius: 10px;
  font-family: inherit; font-size: 14px;
  outline: none; transition: all .25s;
  background: var(--bg-input);
  color: var(--text-primary);
}
.contact-page-form select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.contact-page-form input::placeholder,
.contact-page-form textarea::placeholder { color: var(--text-dim); }
.contact-page-form input:focus,
.contact-page-form select:focus,
.contact-page-form textarea:focus {
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.08);
}
.contact-page-form textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Форма абитуриента ── */
.applicant-form-wrap {
  display: grid; grid-template-columns: 1fr 220px;
  gap: 32px; align-items: start;
}
.applicant-form { order: 1; }
.form-step { display: none; }
.form-step.active { display: block; }
.step-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 28px;
}
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-title { font-size: 20px; font-weight: 700; color: var(--text-secondary); }
.step-desc { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-size: 13px; font-weight: 500; color: var(--text-nav); }
.form-field input,
.form-field select {
  padding: 12px 16px;
  border: 1px solid var(--border-input);
  border-radius: 10px;
  font-family: inherit; font-size: 14px;
  outline: none; transition: all .25s;
  background: var(--bg-input);
  color: var(--text-primary);
}
.form-field input:focus,
.form-field select:focus {
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.08);
}
.form-field input:invalid:not(:placeholder-shown),
.form-field select:invalid:not(:placeholder-shown) { border-color: rgba(239,68,68,0.4); }
.form-field input::placeholder { color: var(--text-dim); }
.file-upload {
  border: 2px dashed var(--border-color);
  border-radius: 10px; padding: 24px;
  text-align: center; cursor: pointer;
  transition: all .25s; background: var(--bg-input);
}
.file-upload:hover { border-color: rgba(var(--accent-rgb), 0.3); background: rgba(var(--accent-rgb), 0.03); }
.file-upload-text { display: block; font-size: 14px; color: var(--accent-light); font-weight: 500; }
.file-upload-hint { display: block; font-size: 11px; color: var(--text-dim); margin-top: 4px; }
.form-nav {
  display: flex; gap: 12px;
  margin-top: 32px; padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.form-progress { order: 0; }
.form-progress-bar {
  height: 4px; background: var(--border-color);
  border-radius: 2px; overflow: hidden; margin-bottom: 20px;
}
.form-progress-bar::after {
  content: ''; display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
  border-radius: 2px; transition: width .4s ease;
}
.form-progress-steps {
  display: flex; align-items: center; gap: 12px;
}
.form-progress-dot {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
  background: var(--border-color); color: var(--text-dim);
  transition: all .3s;
}
.form-progress-dot.active {
  background: var(--accent); color: #fff;
}
.form-progress-line {
  flex: 1; height: 2px;
  background: var(--border-color); border-radius: 1px;
}
.form-success {
  text-align: center; padding: 60px 24px;
}
.form-success-icon {
  font-size: 56px; margin-bottom: 16px;
}
.form-success h2 { font-size: 24px; font-weight: 700; color: var(--text-secondary); margin-bottom: 8px; }
.form-success p { color: var(--text-muted); font-size: 15px; }

/* ── Анимация появления текста (замена typing-эффекту) ── */
.hero-badge {
  animation: badge-appear 0.8s ease-out forwards;
}
@keyframes badge-appear {
  0% { opacity: 0; transform: translateY(10px) scale(0.95); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Адаптивность (Responsive) ── */
/* Планшеты */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-stats-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .main-nav {
    position: absolute; top: 76px; left: 0; right: 0;
    display: flex; flex-direction: column;
    background: var(--bg-primary); padding: 0 16px;
    border-bottom: 1px solid var(--border-light);
    backdrop-filter: blur(16px);
    max-height: 0; opacity: 0; overflow: hidden;
    transform: translateY(-10px);
    transition: max-height .4s ease, opacity .3s ease, transform .3s ease, padding .3s ease;
    pointer-events: none;
  }
  .main-nav.open {
    max-height: 600px; opacity: 1; transform: translateY(0);
    padding: 16px;
    pointer-events: all;
  }
  .main-nav a { padding: 12px 18px; }
  .menu-toggle { display: flex; }
  .hero .container { padding: 100px 24px 60px; }
  .page-hero-content h1 { font-size: clamp(24px, 5vw, 36px); }
  .page-hero { padding: 60px 24px 40px; }
  .search-results { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .content-grid { grid-template-columns: 1fr; gap: 32px; }
  .content-sidebar { order: -1; }
  .no-sidebar .content-sidebar { display: none; }
  .top-bar-inner { flex-wrap: wrap; gap: 6px; justify-content: center; }
  .top-bar-links { gap: 8px; }
  .top-bar-links a { font-size: 11px; }
  .form-row { grid-template-columns: 1fr; }
  .applicant-form-wrap { grid-template-columns: 1fr; }
  .form-progress { order: 2; margin-top: 24px; }
  .hero-title { font-size: clamp(28px, 7vw, 40px); }
  .section-title { font-size: clamp(22px, 5vw, 30px); }
  .search-overlay-inner { padding: 80px 20px 40px; }
  .search-overlay-input { font-size: 20px; padding: 16px 24px; }
  .search-overlay-close { top: 16px; right: 16px; width: 40px; height: 40px; font-size: 22px; }
  .staff-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .news-detail-body { padding: 24px; }
  .news-detail-body h1 { font-size: 22px; }
  .news-detail-img { height: 180px; }
  .programs-list { gap: 8px; }
  .program-item { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .fact-row { font-size: 13px; }
  .page-hero { padding: 50px 20px 32px; }
}
/* Мобильные */
@media (max-width: 600px) {
  .hero-stats { flex-direction: column; gap: 24px; }
  .about-features { grid-template-columns: 1fr; }
  .about-stats-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .dir-grid { grid-template-columns: 1fr; }
  .struct-grid { grid-template-columns: 1fr; }
  .branch-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .top-bar-links a:not(.essential) { display: none; }
  .partner-logo { width: 120px; }
  .logo-placeholder { width: 90px; height: 72px; }
  .scroll-top { width: 44px; height: 44px; font-size: 18px; bottom: 20px; right: 20px; }
  .staff-grid { grid-template-columns: 1fr; }
  .form-field input, .form-field select { font-size: 16px; }
  .form-nav { flex-direction: column; gap: 8px; }
  .form-nav .btn { width: 100%; justify-content: center; }
  .preloader-logo-letter { font-size: 36px; }
  .preloader-underline { width: 140px; }
  .preloader-progress { width: 180px; }
  .preloader-glow { width: 260px; height: 260px; }
  .search-result-item { padding: 12px 16px; }
  .search-result-item h3 { font-size: 14px; }
  .site-header { top: 32px; }
  .header-inner { height: 52px; }
}
/* Очень маленькие телефоны */
@media (max-width: 400px) {
  .branch-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 24px; }
  .section-title { font-size: 20px; }
  .hero-title { font-size: 24px; }
  .container { padding: 0 12px; }
  .header-inner { gap: 8px; }
  .logo-placeholder { width: 60px; height: 48px; }
  .logo-placeholder span { font-size: 10px; }
  .preloader-logo-letter { font-size: 28px; }
  .preloader-underline { width: 110px; }
  .preloader-progress { width: 140px; }
  .preloader-glow { display: none; }
}