:root {
  --bg: #0a1628;
  --bg-card: #0f1e32;
  --bg-card-hover: #142540;
  --fg: #f0e8d8;
  --fg-muted: #9ba8b8;
  --accent: #ff6b35;
  --accent-dim: rgba(255, 107, 53, 0.12);
  --border: rgba(240, 232, 216, 0.08);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* SECTION UTILITIES */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 2.5rem;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 8rem 2rem 5rem;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 107, 53, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 53, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
}
.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 3rem;
}
.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  max-width: 140px;
  line-height: 1.4;
}

/* MARCHE */
.marche {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.marche-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}
.marche-item {}
.marche-number {
  display: block;
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.marche-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.5;
}
.marche-closing {
  font-size: 1rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
  font-style: italic;
}

/* OFFRE */
.offre-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.offre-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2rem;
  transition: background 0.2s;
}
.offre-card:hover {
  background: var(--bg-card-hover);
}
.offre-card-icon {
  margin-bottom: 1.25rem;
}
.offre-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--fg);
  margin-bottom: 0.75rem;
}
.offre-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* PROTOCOLE */
.protocole {
  background: var(--bg);
}
.protocole-steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.protocole-step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}
.protocole-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.protocole-num {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
  width: 80px;
}
.protocole-step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.protocole-step p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}
.closing-inner {
  text-align: left;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.closing-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.closing-quote {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  padding: 1.5rem 2rem;
  max-width: 600px;
}
.closing-quote p {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--fg);
  line-height: 1.5;
  font-style: italic;
  margin-bottom: 0.75rem;
}
.closing-source {
  font-size: 0.78rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 0.25rem;
}
.footer-info p {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.footer-copy {
  font-size: 0.78rem;
  color: rgba(155, 168, 184, 0.5);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .hero-stats { gap: 1.5rem; }
  .hero-stat-value { font-size: 1.5rem; }
  .marche-number { font-size: 2.2rem; }
  .protocole-num { font-size: 2rem; width: 50px; }
  .section-inner { padding: 3rem 1.25rem; }
  .hero { padding: 7rem 1.25rem 4rem; }
  .offre-cards { grid-template-columns: 1fr; }
}