:root {
  --brand: #0e8a68;
  --brand-dark: #0a5f48;
  --accent: #f6c94c;
  --navy: #11284b;
  --soft: #f4f8f7;
}
body { font-family: 'Inter', sans-serif; color: #23313f; background: #fff; }
a { text-decoration: none; }
.topbar, .footer-section { background: linear-gradient(90deg, var(--brand-dark), var(--navy)); }
.text-primary-brand { color: var(--brand); }
.site-logo { width: 52px; height: 52px; object-fit: contain; }
.btn-brand { background: var(--brand); color: #fff; border-radius: 999px; padding: .7rem 1.2rem; }
.btn-brand:hover { background: var(--brand-dark); color: #fff; }
.hero-section { background: linear-gradient(rgba(17,40,75,.65), rgba(14,138,104,.58)), url('https://images.unsplash.com/photo-1503676260728-1c00da094a0b?auto=format&fit=crop&w=1600&q=80') center/cover; color: #fff; }
.hero-card, .feature-card, .news-card, .teacher-card, .gallery-card, .stats-card, .admin-card { background: #fff; border-radius: 22px; box-shadow: 0 16px 35px rgba(13, 35, 67, .08); border: 0; }
.feature-icon { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 18px; background: rgba(14,138,104,.1); color: var(--brand); font-size: 1.8rem; }
.section-title small { color: var(--brand); text-transform: uppercase; font-weight: 700; letter-spacing: .1em; }
.section-light { background: var(--soft); }
.badge-brand { background: rgba(246,201,76,.18); color: #755700; }
.card-img-top.cover { height: 220px; object-fit: cover; }
.teacher-thumb { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 22px 22px 0 0; }
.gallery-thumb { width: 100%; height: 240px; object-fit: cover; border-radius: 22px; }
.info-box { background: #fff; border-left: 5px solid var(--accent); border-radius: 18px; }
.footer-links a { color: rgba(255,255,255,.84); display: inline-block; padding: .2rem 0; }
.footer-links a:hover { color: #fff; }
.article-content img, .article-content iframe { max-width: 100%; height: auto; }
.article-content iframe { width: 100%; min-height: 380px; }
.admin-sidebar { min-height: 100vh; background: linear-gradient(180deg, var(--navy), var(--brand-dark)); }
.admin-sidebar a { color: rgba(255,255,255,.9); display: block; padding: .8rem 1rem; border-radius: 14px; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,.12); color: #fff; }
.login-wrap { min-height: 100vh; background: linear-gradient(135deg, var(--navy), var(--brand)); }
.table img { object-fit: cover; }
.form-label { font-weight: 600; }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--navy); }
@media (max-width: 991.98px) {
  .hero-section { text-align: center; }
  .article-content iframe { min-height: 220px; }
}