:root {
  --bg: #FAFAF5;
  --fg: #0F1923;
  --fg-muted: #5A6270;
  --accent: #F97316;
  --accent-dark: #EA580C;
  --card-bg: #FFFFFF;
  --card-border: #E8E6E0;
  --navy: #0F1923;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Figtree', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.1;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  border-bottom: 1px solid var(--card-border);
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 500;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding: 80px 48px 80px;
  align-items: center;
  min-height: 70vh;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-block;
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 28px;
}
.hero-headline {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}
.hero-lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-video-note {
  font-size: 0.9rem;
  color: var(--fg-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.hero-card-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-card {
  background: var(--card-bg);
  border: 1.5px solid var(--card-border);
  border-radius: 16px;
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 4px 24px rgba(15,25,35,0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hero-card:hover {
  transform: translateX(-6px);
  box-shadow: 0 8px 36px rgba(15,25,35,0.12);
}
.card-1 { border-left: 4px solid #F97316; }
.card-2 { border-left: 4px solid #0EA5E9; }
.card-3 { border-left: 4px solid #8B5CF6; }
.card-label {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
}
.card-sub {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 400;
}

/* Section eyebrow */
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

/* Problem */
.problem {
  background: var(--navy);
  padding: 80px 48px;
  color: white;
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem-heading {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: white;
  margin-bottom: 56px;
  letter-spacing: -0.03em;
}
.problem-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.stat-item {}
.stat-number {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: -0.04em;
}
.stat-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

/* Format */
.format { padding: 80px 48px; background: var(--bg); }
.format-inner { max-width: 1100px; margin: 0 auto; }
.format-heading {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 48px;
  letter-spacing: -0.03em;
}
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.format-card {
  background: var(--card-bg);
  border: 1.5px solid var(--card-border);
  border-radius: 20px;
  padding: 36px;
}
.format-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}
.format-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.format-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}
.format-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
  background: rgba(249,115,22,0.08);
  border: 1px solid rgba(249,115,22,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  display: inline-block;
}

/* Sujets */
.sujets {
  background: #F4F1EB;
  padding: 80px 48px;
}
.sujets-inner { max-width: 1100px; margin: 0 auto; }
.sujets-heading {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 48px;
  letter-spacing: -0.03em;
}
.sujets-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 64px;
}
.sujet-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.sujet-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 8px;
}
.sujet-item h4 {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.sujet-item p {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

/* Closing */
.closing {
  background: var(--navy);
  padding: 80px 48px;
  color: white;
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.closing-quote-mark {
  font-size: 5rem;
  line-height: 1;
  color: var(--accent);
  font-family: Georgia, serif;
  margin-bottom: 16px;
}
.closing-quote {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: white;
  line-height: 1.4;
  margin-bottom: 16px;
}
.closing-attr {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.closing-cta h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
  line-height: 1.3;
}
.closing-cta p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

/* Footer */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--card-border);
  padding: 40px 48px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 8px;
}
.footer-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.footer-links {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.footer-links a { color: var(--fg-muted); text-decoration: underline; }
.footer-copy {
  font-size: 0.8rem;
  color: rgba(90,98,112,0.6);
}

/* Responsive */
@media (max-width: 768px) {
  .navbar { padding: 16px 24px; }
  .hero { grid-template-columns: 1fr; padding: 60px 24px; gap: 48px; }
  .hero-visual { display: none; }
  .problem { padding: 60px 24px; }
  .problem-stats { grid-template-columns: 1fr; gap: 32px; }
  .format { padding: 60px 24px; }
  .format-grid { grid-template-columns: 1fr; }
  .sujets { padding: 60px 24px; }
  .sujets-grid { grid-template-columns: 1fr; }
  .closing-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer { padding: 32px 24px; }
}

/* Smooth scroll */
html { scroll-behavior: smooth; }