:root {
  --navy: #0f172a;
  --navy-soft: #1e293b;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-bg: #eff6ff;
  --gold: #d4a017;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-500: #64748b;
  --gray-700: #334155;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.12);
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--navy);
  background: #fff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 640px; }

h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; margin: 0 0 16px; color: var(--navy); }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.2; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 14px; color: var(--gray-700); }
.center { text-align: center; }
.center p { margin-left: auto; margin-right: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { font-size: 1.6rem; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 800; font-size: 1.15rem; }
.brand-tagline { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gray-500); }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { font-weight: 600; font-size: 0.95rem; color: var(--gray-700); transition: color .2s; }
.site-nav a:hover, .site-nav a.active { color: var(--blue); }
.site-nav a.btn-nav {
  background: var(--blue); color: #fff; padding: 10px 20px; border-radius: 999px;
}
.site-nav a.btn-nav:hover { background: #1d4ed8; color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--navy); border-radius: 2px; }

/* Hero */
.hero { background: linear-gradient(180deg, var(--blue-bg) 0%, #fff 100%); padding: 72px 0 56px; text-align: center; }
.hero-sub { padding: 56px 0 40px; }
.hero-inner { max-width: 780px; }
.badge {
  display: inline-block; background: var(--blue-bg); color: var(--blue);
  font-weight: 700; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { margin-bottom: 20px; }
.accent { color: var(--blue); }
.hero-intro { font-size: 1.1rem; color: var(--gray-700); max-width: 620px; margin: 0 auto; }

/* Sections */
.section { padding: 64px 0; }
.section-muted { background: var(--gray-50); }
.tag {
  display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--blue); background: var(--blue-bg);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 14px;
}
.tag-gold { color: #92650a; background: #fdf2d0; }

/* Split layout */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split-image img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* Timeline */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 40px; }
.timeline-item { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px 22px; position: relative; }
.timeline-dot {
  width: 34px; height: 34px; border-radius: 50%; background: var(--blue-bg); color: var(--blue);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem;
  margin-bottom: 16px; border: 1px solid #dbeafe;
}
.timeline-item h3 { font-size: 1rem; margin-bottom: 8px; }
.timeline-item p { font-size: 0.9rem; margin: 0; }

/* Comparison */
.comparison-intro { max-width: 760px; margin-bottom: 32px; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 36px; }
.compare-card { border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px; background: #fff; }
.compare-card-accent { background: var(--blue-bg); border-color: #dbeafe; }
.compare-card-accent h3 { color: var(--blue); }
.compare-card ul { list-style: none; margin: 0; padding: 0; }
.compare-card li { padding: 9px 0; border-top: 1px solid var(--gray-200); font-weight: 600; font-size: 0.95rem; color: var(--navy); }
.compare-card-accent li { border-top-color: #dbeafe; }
.compare-card li:first-child { border-top: none; }
.full-image img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* Card grid (curriculum / modules) */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 36px; }
.feature-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 26px; transition: transform .2s, box-shadow .2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card h3 { color: var(--blue); }
.feature-card p { font-size: 0.92rem; margin: 0; }

/* Video */
.video-wrap { position: relative; padding-top: 56.25%; margin-top: 28px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Award */
.award-section { background: linear-gradient(180deg, var(--blue-bg) 0%, #fff 100%); }
.award-section h2 { color: var(--navy); }
.award-text p { color: var(--gray-700); max-width: 640px; margin-left: auto; margin-right: auto; }
.award-image { max-width: 320px; margin: 24px auto 0; border-radius: var(--radius); box-shadow: var(--shadow); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px; text-align: center; }
.contact-card h3 { margin-bottom: 4px; }
.contact-card p { margin: 0 0 4px; font-size: 0.92rem; }
.contact-email { color: var(--blue); font-weight: 600; }
.contact-form { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.contact-form label { font-weight: 600; font-size: 0.9rem; color: var(--gray-700); display: flex; flex-direction: column; gap: 6px; }
.contact-form input, .contact-form textarea {
  font-family: inherit; font-size: 1rem; padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200); background: #fff;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.btn-primary {
  background: var(--blue); color: #fff; border: 0; padding: 13px 26px; border-radius: 999px;
  font-weight: 700; font-size: 1rem; cursor: pointer; transition: background .2s;
}
.btn-primary:hover { background: #1d4ed8; }
.form-success { background: #dcfce7; color: #166534; padding: 14px 18px; border-radius: var(--radius-sm); font-weight: 600; }
.form-error { background: #fee2e2; color: #991b1b; padding: 14px 18px; border-radius: var(--radius-sm); font-weight: 600; }

/* Footer */
.site-footer { background: var(--gray-50); color: var(--gray-700); padding: 48px 0; margin-top: 40px; border-top: 1px solid var(--gray-200); }
.footer-inner { text-align: center; }
.footer-project { font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.footer-intro { font-size: 0.9rem; margin-bottom: 10px; white-space: pre-line; color: var(--gray-700); }
.footer-supporters { font-size: 0.82rem; color: var(--gray-500); margin-bottom: 18px; }
.footer-copy { font-size: 0.8rem; color: var(--gray-500); margin: 0; }
.footer-copy a { color: var(--blue); text-decoration: underline; }

/* Generic content blocks (custom pages) */
.block-text { max-width: 760px; }
.block-text.center { margin-left: auto; margin-right: auto; }

/* Responsive */
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse { direction: ltr; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; gap: 0; border-bottom: 1px solid var(--gray-200);
    display: none; padding: 8px 24px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--gray-100); }
  .site-nav a.btn-nav { text-align: center; margin-top: 10px; }
  .timeline { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 40px; }
  .section { padding: 48px 0; }
}