@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --red: #C8102E;
  --dark-navy: #1A2340;
  --text: #374151;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --light-bg: #F9FAFB;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.09);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.13);
}

html { scroll-behavior: smooth; }
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', system-ui, -apple-system, sans-serif; }
body { background: var(--white); color: var(--text); line-height: 1.5; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img, svg { max-width: 100%; height: auto; }

/* ── Header ── */
.site-header {
  background: var(--dark-navy); color: #fff;
  padding: 14px 0; position: sticky; top: 0; z-index: 1000;
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo-block { display: flex; align-items: center; gap: 12px; }
.logo-circle {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; background: transparent;
}
.logo-circle img, .logo-circle svg { width: 100%; height: 100%; object-fit: contain; }
.logo-circle-sm { width: 40px; height: 40px; }
.logo-text {
  font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.9);
  line-height: 1.3; max-width: 260px;
}

.main-nav { display: none; align-items: center; gap: 4px; margin-left: auto; }
.main-nav a {
  color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500;
  padding: 8px 14px; border-radius: 6px;
  transition: background .2s, color .2s;
}
.main-nav a:hover, .main-nav a.active { background: rgba(255,255,255,0.12); color: #fff; }

.schedule-btn {
  background: var(--red); color: #fff;
  padding: 8px 16px; border-radius: 6px;
  font-size: 13px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
  transition: background .2s, transform .15s;
}
.schedule-btn:hover { background: #a80d26; transform: translateY(-1px); }

.site-header .schedule-btn { display: none; margin-left: 12px; }

.lang-btn {
  border: 1px solid rgba(255,255,255,0.25); border-radius: 6px;
  padding: 6px 12px; font-size: 13px; color: #fff;
  background: none; cursor: pointer; margin-left: 8px;
  transition: background .2s; display: none;
}
.lang-btn:hover { background: rgba(255,255,255,0.12); }

.burger { display: block; background: none; border: none; cursor: pointer; padding: 8px; margin-left: auto; }
.burger span {
  display: block; width: 22px; height: 2px; background: #fff;
  transition: transform .3s, opacity .3s;
  margin: 4px 0; border-radius: 2px;
}
.burger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  position: fixed; top: 72px; right: 0; width: 100%; height: calc(100vh - 72px);
  background: var(--dark-navy); z-index: 999; padding: 24px;
  display: flex; flex-direction: column; gap: 8px;
  transform: translateX(100%); transition: transform .3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  color: rgba(255,255,255,0.85); padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 15px; display: flex; align-items: center; gap: 12px;
}
.mobile-nav .mobile-nav-home { color: #fff; font-weight: 700; border-bottom-color: rgba(255,255,255,0.15); }
.mobile-nav .schedule-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px;
  color: var(--red);
  background: rgba(200,16,46,0.05);
  font-size: 15px;
  font-weight: 700;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  width: 100%;
  border-radius: 0;
  margin: 0;
}
.mobile-nav .schedule-btn i { font-size: 16px; }

/* ── Breadcrumbs ── */
.breadcrumb-bar { background: var(--light-bg); border-bottom: 1px solid var(--border); padding: 10px 0; }
.breadcrumb { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--text); font-weight: 500; }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, #0F1B35 0%, #1A2B50 55%, #0D1B30 100%);
  overflow: hidden; position: relative; color: #fff;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 72% 48%, rgba(200,16,46,0.18) 0%, transparent 58%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 12% 80%, rgba(99,102,241,0.09) 0%, transparent 50%);
  pointer-events: none;
}
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 60px 24px; text-align: center; position: relative; z-index: 1; }
.hero-label {
  font-size: 11px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase;
  margin-bottom: 18px; color: #FCA5A5;
  display: inline-flex; align-items: center; gap: 10px;
}
.hero-label::before, .hero-label::after { content: ''; width: 28px; height: 1px; background: rgba(252,165,165,0.5); }
.hero-title { font-size: clamp(32px, 8vw, 56px); font-weight: 800; color: #fff; line-height: 1.05; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero-desc { font-size: 16px; color: rgba(255,255,255,0.72); line-height: 1.7; max-width: 580px; margin: 0 auto 36px; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-image { display: none; }

.btn-primary {
  background: var(--red); color: #fff; padding: 14px 28px; border-radius: 8px;
  font-weight: 700; display: inline-flex; align-items: center; gap: 10px;
  transition: all .2s; box-shadow: 0 4px 20px rgba(200,16,46,0.4);
}
.btn-primary:hover { background: #a80d26; transform: translateY(-2px); box-shadow: 0 6px 24px rgba(200,16,46,0.5); }

.btn-outline {
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.9);
  border: 1.5px solid rgba(255,255,255,0.25); padding: 14px 28px; border-radius: 8px;
  font-weight: 700; display: inline-flex; align-items: center; gap: 10px;
  transition: all .2s;
}
.btn-outline:hover { border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.14); transform: translateY(-2px); }

/* ── Stats ── */
.stats-section { padding: 48px 0; background: var(--white); border-bottom: 1px solid var(--border); }
.stats-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; gap: 16px; grid-template-columns: 1fr; }
.stat-item {
  display: flex; align-items: center; gap: 20px;
  background: var(--light-bg); border: 1px solid var(--border);
  border-radius: 16px; padding: 24px 28px; transition: all .25s;
}
.stat-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #D1D5DB; }
.stat-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, #FEE2E7 0%, #FECDD3 100%);
  color: var(--red); display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}
.stat-value { font-size: 28px; font-weight: 800; color: var(--dark-navy); line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 13px; color: var(--text-muted); line-height: 1.4; }

/* ── Section Titles ── */
.section-title { font-size: 24px; font-weight: 800; color: var(--dark-navy); margin-bottom: 12px; letter-spacing: -0.3px; }

/* ── About ── */
.about-section { padding: 72px 0; background: var(--light-bg); border-bottom: 1px solid var(--border); }
.about-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; gap: 48px; grid-template-columns: 1fr; }
.about-text { display: flex; flex-direction: column; gap: 20px; }
.about-desc { font-size: 16px; color: var(--text); line-height: 1.7; }
.feature-list { display: flex; flex-direction: column; gap: 10px; }
.feature-item {
  display: flex; align-items: center; gap: 14px;
  font-size: 15px; font-weight: 500; color: var(--dark-navy);
  background: var(--white); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 18px; transition: all .2s;
}
.feature-item:hover { border-color: #6EE7B7; box-shadow: 0 2px 10px rgba(16,185,129,0.08); }
.check {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, #10B981, #059669);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 12px; flex-shrink: 0;
}
.video-card { border-radius: 20px; overflow: hidden; box-shadow: 0 16px 48px rgba(0,0,0,0.14); border: 3px solid var(--white); background: #000; }
.video-card video { width: 100%; display: block; object-fit: cover; aspect-ratio: 16 / 9; }

/* ── Labs ── */
.labs-section { padding: 72px 0; background: var(--white); }
.labs-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; text-align: center; }
.labs-sub { color: var(--text-muted); font-size: 15px; max-width: 580px; margin: 0 auto 32px; line-height: 1.6; }
.labs-grid { display: grid; gap: 16px; grid-template-columns: 1fr; text-align: left; }
.lab-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden; transition: all .25s;
}
.lab-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--dark-navy); }
.lab-img-wrap {
  height: 140px;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  position: relative; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.lab-img-mobile { background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%); }
.lab-img-placeholder { font-size: 44px; color: var(--dark-navy); opacity: 0.14; }
.lab-tag-board, .lab-badge {
  position: absolute; top: 12px; right: 12px;
  background: rgba(26,35,64,0.72); color: #fff;
  font-size: 10px; font-weight: 600; padding: 4px 10px; border-radius: 6px;
  display: flex; align-items: center; gap: 4px;
}
.lab-badge { background: var(--red); }
.lab-body { padding: 16px 20px; }
.lab-meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--text); }
.lab-meta span { display: flex; align-items: center; gap: 6px; background: var(--light-bg); border-radius: 6px; padding: 4px 10px; }
.lab-meta i { color: var(--red); width: 14px; text-align: center; }

/* ── Materials ── */
.materials-section { padding: 72px 0; background: var(--light-bg); border-top: 1px solid var(--border); }
.materials-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.materials-inner .section-title { margin-bottom: 28px; }
.materials-grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
.material-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 16px; padding: 22px 24px;
  display: flex; align-items: center; gap: 18px;
  transition: all .22s; box-shadow: var(--shadow-sm);
}
.material-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: transparent; }
.mat-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: #F3F4F6; color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0; transition: all .22s;
}
.material-card:hover .mat-icon { background: #FEE2E7; color: var(--red); }
.mat-body { flex: 1; min-width: 0; }
.mat-title { font-size: 15px; font-weight: 700; color: var(--dark-navy); margin-bottom: 4px; }
.mat-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.mat-arrow { display: flex; align-items: center; color: #D1D5DB; font-size: 14px; flex-shrink: 0; transition: transform .2s, color .2s; }
.material-card:hover .mat-arrow { transform: translateX(4px); color: var(--red); }
.material-card-accent { background: linear-gradient(135deg, #F0FDF4, #DCFCE7); border-color: #BBF7D0; }
.material-card-accent:hover { border-color: #10B981; box-shadow: 0 8px 32px rgba(16,185,129,0.12); }
.material-card-accent .mat-title { color: #166534; }
.material-card-accent:hover .mat-icon { background: #DCFCE7; color: #16A34A; }
.material-card-accent:hover .mat-arrow { color: #16A34A; }

/* ── Info Notice (Global) ── */
.info-notice {
  display: flex; align-items: flex-start; gap: 16px;
  background: #F0F9FF; border-radius: 14px;
  padding: 20px 24px; margin: 40px 0;
  color: #0369A1; font-size: 14px; line-height: 1.6;
}
.info-notice i { color: #0EA5E9; font-size: 18px; margin-top: 2px; flex-shrink: 0; }
.info-notice a { font-weight: 700; color: #0284C7; text-decoration: underline; text-underline-offset: 3px; transition: color .2s; }
.info-notice a:hover { color: var(--red); }


/* ── Footer ── */
footer { background: var(--dark-navy); color: rgba(255,255,255,0.65); padding: 56px 0 24px; }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid; gap: 48px; grid-template-columns: 1fr;
}
.footer-brand { display: flex; flex-direction: column; gap: 4px; }
.footer-brand > p { font-size: 13px; color: rgba(255,255,255,0.45); margin-top: 4px; }
.footer-heading { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-contacts li { display: flex; gap: 12px; margin-bottom: 14px; font-size: 14px; align-items: flex-start; }
.footer-contacts i { color: var(--red); width: 16px; text-align: center; margin-top: 2px; flex-shrink: 0; }
.footer-bottom {
  max-width: 1200px; margin: 40px auto 0; padding: 24px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.footer-bottom p { font-size: 13px; }
.socials { display: flex; gap: 10px; }
.social-link {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.7);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; transition: all .2s; border: 1px solid rgba(255,255,255,0.08);
}
.social-link:hover { background: var(--red); color: #fff; border-color: transparent; transform: translateY(-2px); }

/* ── Reveal animation ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease-out, transform .6s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (min-width: 600px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stats-inner.stats-3 { grid-template-columns: repeat(3, 1fr); }
  .materials-grid { grid-template-columns: repeat(2, 1fr); }
  .labs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .header-inner { padding: 0 40px; }
  .main-nav { display: flex; }
  .site-header .schedule-btn { display: flex; }
  .lang-btn { display: block; }
  .burger { display: none; }
  .mobile-nav { display: none; }

  .hero-inner { grid-template-columns: 1.1fr 0.9fr; text-align: left; display: grid; padding: 88px 40px; }
  .hero-image { display: flex; justify-content: flex-end; align-items: center; }
  .hero-image img { max-width: 100%; height: auto; }
  .hero-buttons { justify-content: flex-start; }
  .hero-desc { margin: 0 0 36px; }
  .hero-label::before, .hero-label::after { display: none; }

  .section-title { font-size: 28px; }
  .materials-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { grid-template-columns: 2fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
  .about-inner { grid-template-columns: 1fr 1fr; align-items: start; }
  .labs-grid { grid-template-columns: repeat(5, 1fr); }
}