/* ============================
   NEXUS PILOT — SITE V4
   Apple Vision Pro style · Dark + violet + teal
   ============================ */

/* CSS VARIABLES */
:root {
  --bg: #000000;
  --bg-2: #0a0a0f;
  --bg-3: #15151f;
  --fg: #ffffff;
  --fg-dim: rgba(255,255,255,0.70);
  --fg-mute: rgba(255,255,255,0.45);
  --fg-faint: rgba(255,255,255,0.12);
  --accent: #A78BFA;
  --accent-strong: #7C3AED;
  --accent-dark: #3B0764;
  --teal: #14B8A6;
  --teal-soft: #2DD4BF;
  --border: rgba(255,255,255,0.10);
  --border-soft: rgba(255,255,255,0.06);

  --maxw: 1400px;
  --container-pad: 6vw;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --t-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --t-med: 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
  --t-slow: 1.2s cubic-bezier(0.25, 0.8, 0.25, 1);
  --ease-out: cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* RESET */
* { margin:0; padding:0; box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  font-weight: 400;
  overflow-x: hidden;
  min-height: 100vh;
}
img, video { max-width:100%; height:auto; display:block; }
a { color: inherit; text-decoration: none; transition: opacity var(--t-fast), color var(--t-fast); }
a:hover { opacity: 0.75; }
button { font-family: inherit; background: none; border: none; cursor: pointer; color: inherit; }

/* UTILITIES */
.accent { color: var(--accent); }
.accent-teal { color: var(--teal-soft); }
.muted { color: var(--fg-mute); }
.center { text-align: center; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--container-pad); }
.eyebrow {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 30px;
}

/* TYPOGRAPHY */
.section-title {
  font-size: clamp(44px, 6vw, 92px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 40px;
}
.section-title.giant {
  font-size: clamp(80px, 14vw, 220px);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.92;
}
.section-kicker {
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 300;
  line-height: 1.55;
  max-width: 780px;
  color: var(--fg-dim);
  margin-top: 40px;
}

/* REVEAL ANIMATIONS (contrôlé par app.js) */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* NAVIGATION */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(0,0,0,0.0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition: background var(--t-med), backdrop-filter var(--t-med), padding var(--t-med), border-color var(--t-med);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: 12px 0;
  border-bottom-color: var(--border-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.nav-logo-sub {
  font-weight: 300;
  color: var(--fg-dim);
  margin-left: 4px;
  font-size: 18px;
}
.nav-links {
  display: flex; align-items: center; gap: 36px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-dim);
}
.nav-links a:hover { color: var(--fg); opacity: 1; }
.nav-cta {
  background: var(--accent);
  color: #000 !important;
  padding: 10px 22px;
  border-radius: 100px;
  font-weight: 600;
  transition: background var(--t-fast), transform var(--t-fast);
}
.nav-cta:hover { background: var(--teal-soft); opacity: 1 !important; transform: translateY(-1px); }

.nav-burger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  width: 40px; height: 40px;
  gap: 5px;
}
.nav-burger span {
  display: block; width: 22px; height: 1.5px; background: #fff;
  transition: transform var(--t-fast), opacity var(--t-fast);
}
.nav-burger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(0,0,0,0.98);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  padding: 100px 30px 50px;
  display: none;
  flex-direction: column; gap: 10px;
  z-index: 99;
  border-bottom: 1px solid var(--border);
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  font-size: 22px;
  font-weight: 500;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu .nav-cta {
  margin-top: 20px;
  text-align: center;
  padding: 16px 22px;
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--t-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: var(--teal-soft);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(167,139,250,0.4);
  opacity: 1;
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--accent);
  opacity: 1;
  transform: translateY(-2px);
}

/* ==== HERO ==== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 100px 0 40px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(124,58,237,0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(20,184,166,0.10) 0%, transparent 40%);
}
.particles {
  position: absolute; inset: 0; pointer-events: none;
}
.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
  opacity: 0;
}
@keyframes twinkle {
  0%, 100% { opacity: 0; transform: scale(0.8); }
  50% { opacity: 0.8; transform: scale(1.2); }
}
.hero-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  padding: 0 var(--container-pad);
  max-width: 1100px;
  width: 100%;
}
.hero-text { margin-top: 30px; }
.hero-title {
  font-size: clamp(100px, 18vw, 300px);
  font-weight: 900;
  line-height: 0.88;
  letter-spacing: -0.06em;
  margin-bottom: 10px;
  background: linear-gradient(180deg, #fff 0%, #fff 60%, rgba(255,255,255,0.8) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: clamp(28px, 4vw, 54px);
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-top: -10px;
}
.hero-tagline {
  font-size: clamp(18px, 2.2vw, 30px);
  font-weight: 300;
  margin-top: 40px;
  color: var(--fg-dim);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.hero-ctas {
  margin-top: 50px;
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
}
.scroll-indicator {
  position: absolute; bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-indicator span {
  font-size: 10px; font-weight: 600; letter-spacing: 0.3em;
  color: var(--fg-mute);
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, var(--fg-mute), transparent);
  position: relative;
}
.scroll-line::after {
  content: ""; position: absolute; top: 0; left: 0;
  width: 100%; height: 50%;
  background: var(--accent);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { top: -50%; opacity: 0; }
  40%, 60% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* ==== ORB ==== */
.orb-wrap {
  display: flex; justify-content: center; align-items: center;
  margin-bottom: 20px;
}
.orb {
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #EDE9FE 0%, #C4B5FD 20%, #A78BFA 40%, #7C3AED 65%, #3B0764 90%, #000 100%);
  box-shadow:
    0 0 80px rgba(167,139,250,0.6),
    0 0 160px rgba(167,139,250,0.25),
    inset 0 0 60px rgba(255,255,255,0.15);
  position: relative;
  animation: orbPulse 5s ease-in-out infinite;
}
.orb::before, .orb::after {
  content: ""; position: absolute;
  border: 1px solid rgba(167,139,250,0.3);
  border-radius: 50%; pointer-events: none;
  animation: orbRings 5s ease-in-out infinite;
}
.orb::before { inset: -30px; }
.orb::after { inset: -70px; border-color: rgba(167,139,250,0.15); animation-delay: 1.2s; }
@keyframes orbPulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.04); filter: brightness(1.15); }
}
@keyframes orbRings {
  0%, 100% { opacity: 0.9; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.12); }
}
.orb-big-wrap { margin: 40px 0; }
.orb.orb-big {
  width: 360px; height: 360px;
}

/* ==== SECTIONS GÉNÉRIQUES ==== */
.section {
  padding: 140px 0;
  position: relative;
}
.section.center { text-align: center; }

/* ==== PROBLEM ==== */
.problem .section-title { max-width: 900px; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 80px;
}
.stat-card {
  padding: 50px 40px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  transition: all var(--t-med);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-strong), transparent);
  opacity: 0; transition: opacity var(--t-med);
  pointer-events: none;
}
.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.stat-num {
  font-size: clamp(80px, 10vw, 140px);
  font-weight: 900;
  line-height: 0.9;
  color: var(--accent);
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}
.stat-label {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 14px;
}
.stat-desc {
  font-size: 15px;
  color: var(--fg-mute);
  line-height: 1.5;
}

/* ==== REVEAL SECTION (Nexus Pilot hero mid) ==== */
.reveal-section {
  padding: 180px 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(167,139,250,0.08) 0%, transparent 70%);
}
.pilot-sub {
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 300;
  color: var(--accent);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-top: -15px;
}
.reveal-desc {
  font-size: clamp(20px, 2.3vw, 32px);
  font-weight: 300;
  max-width: 900px;
  margin: 60px auto 0;
  line-height: 1.4;
  color: var(--fg-dim);
}

/* ==== HOW / PILIERS ==== */
.how .section-title { max-width: 900px; margin-bottom: 80px; }
.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.pillar {
  padding: 50px 40px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  transition: all var(--t-med);
  position: relative;
}
.pillar:hover {
  border-color: var(--accent);
  background: rgba(167,139,250,0.05);
  transform: translateY(-4px);
}
.pillar-icon {
  width: 80px; height: 80px;
  border-radius: 16px;
  background: rgba(167,139,250,0.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 30px;
}
.pillar-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 14px;
}
.pillar-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.pillar-desc {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* ==== GABON SPLIT + 142h ==== */
.gabon {
  background:
    radial-gradient(ellipse at 90% 50%, rgba(20,184,166,0.08) 0%, transparent 60%);
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.split-left .section-title { max-width: 500px; }
.split-desc {
  font-size: 18px;
  color: var(--fg-dim);
  line-height: 1.7;
  margin-top: 24px;
  max-width: 480px;
}
.big-metric {
  text-align: center;
  padding: 60px;
  background: linear-gradient(135deg, rgba(167,139,250,0.08), rgba(20,184,166,0.06));
  border: 1px solid var(--border-soft);
  border-radius: 30px;
}
.big-metric-num {
  font-size: clamp(140px, 18vw, 280px);
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.06em;
  line-height: 0.9;
}
.big-metric-unit {
  display: inline-block;
  margin-left: 10px;
  font-size: 0.4em;
  font-weight: 700;
  color: var(--fg-dim);
  vertical-align: baseline;
}
.big-metric-label {
  font-size: 24px;
  font-weight: 500;
  margin-top: 20px;
}
.big-metric-foot {
  font-size: 16px;
  color: var(--fg-mute);
  margin-top: 20px;
  line-height: 1.5;
}

/* ==== OFFRES 3 ==== */
.offres .section-title { text-align: center; margin-left: auto; margin-right: auto; max-width: 900px; }
.offres-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 80px;
}
.offre-card {
  padding: 50px 40px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  transition: all var(--t-med);
  position: relative;
}
.offre-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(167,139,250,0.1);
}
.offre-card.featured {
  background: linear-gradient(180deg, rgba(167,139,250,0.12) 0%, rgba(124,58,237,0.04) 100%);
  border-color: rgba(167,139,250,0.4);
}
.offre-badge {
  position: absolute; top: 20px; right: 20px;
  background: var(--accent);
  color: #000;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
}
.offre-name {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.offre-price {
  font-size: 16px;
  color: var(--fg-dim);
  font-weight: 400;
  margin-bottom: 20px;
}
.offre-price strong {
  font-size: 42px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.03em;
  display: inline-block;
}
.offre-price span {
  color: var(--fg-mute);
  font-size: 14px;
}
.offre-tagline {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.5;
  margin-bottom: 30px;
}
.offre-features {
  list-style: none;
  margin-bottom: 40px;
  flex-grow: 1;
}
.offre-features li {
  font-size: 14px;
  color: var(--fg-dim);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-soft);
  position: relative;
  padding-left: 22px;
}
.offre-features li::before {
  content: "";
  position: absolute;
  left: 0; top: 18px;
  width: 12px; height: 2px;
  background: var(--accent);
}
.offre-features li:last-child { border-bottom: none; }
.offre-cta { width: 100%; margin-top: auto; }

/* ==== PRICING ==== */
.pricing .section-title { text-align: center; margin-left: auto; margin-right: auto; max-width: 900px; }
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 80px;
}
.tier {
  padding: 50px 40px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 24px;
  display: flex; flex-direction: column;
  transition: all var(--t-med);
  position: relative;
}
.tier:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.tier.featured {
  background: linear-gradient(180deg, rgba(167,139,250,0.15) 0%, rgba(124,58,237,0.05) 100%);
  border-color: var(--accent);
  transform: scale(1.04);
}
.tier.featured:hover {
  transform: scale(1.04) translateY(-4px);
}
.tier-badge {
  position: absolute; top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  padding: 6px 18px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
}
.tier-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 30px;
}
.tier-price {
  font-size: clamp(60px, 8vw, 100px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--accent);
}
.tier-price.tier-price-custom {
  font-size: clamp(36px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  padding-top: 30px;
}
.tier.featured .tier-price { color: #fff; }
.tier-per {
  font-size: 14px;
  color: var(--fg-mute);
  margin-top: 10px;
  margin-bottom: 35px;
}
.tier-features {
  list-style: none;
  flex-grow: 1;
  margin-bottom: 35px;
}
.tier-features li {
  font-size: 14px;
  padding: 12px 0;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border-soft);
  padding-left: 22px;
  position: relative;
}
.tier-features li::before {
  content: "";
  position: absolute;
  left: 0; top: 20px;
  width: 12px; height: 2px;
  background: var(--accent);
}
.tier-features li:last-child { border-bottom: none; }
.tier-cta { width: 100%; }
.pricing-foot {
  text-align: center;
  margin-top: 50px;
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.7;
}

/* ==== CTA FINAL ==== */
.cta-final {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(167,139,250,0.12) 0%, transparent 60%);
}
.cta-desc {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 300;
  color: var(--fg-dim);
  max-width: 700px;
  margin: 40px auto 0;
  line-height: 1.5;
}
.cta-buttons {
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
  margin-top: 60px;
}
.cta-scarcity {
  margin-top: 80px;
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 500;
  color: var(--fg-dim);
  letter-spacing: -0.01em;
}

/* ==== FOOTER ==== */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-soft);
  background: var(--bg-2);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-logo {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.footer-tagline {
  font-size: 14px;
  color: var(--fg-mute);
  line-height: 1.5;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 6px;
}
.footer-col a, .footer-col span {
  font-size: 14px;
  color: var(--fg-dim);
}
.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-soft);
  font-size: 13px;
  color: var(--fg-mute);
  text-align: center;
}

/* ==== VIDEO MODAL ==== */
.video-modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 200;
  display: none;
  align-items: center; justify-content: center;
  padding: 60px 40px;
}
.video-modal.open { display: flex; }
.video-close {
  position: absolute; top: 30px; right: 40px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--t-fast);
}
.video-close:hover { background: rgba(255,255,255,0.18); }
.video-frame {
  width: 100%;
  max-width: 1400px;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(167,139,250,0.3);
}
.video-frame video {
  width: 100%; height: 100%;
  object-fit: cover;
  background: #000;
}

/* ==== RESPONSIVE ==== */
@media (max-width: 1024px) {
  :root { --container-pad: 5vw; }
  .stats-grid, .offres-grid, .tiers, .pillars {
    grid-template-columns: repeat(2, 1fr);
  }
  .split { grid-template-columns: 1fr; gap: 50px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .section { padding: 100px 0; }
  .tier.featured { transform: none; }
  .tier.featured:hover { transform: translateY(-4px); }
}

@media (max-width: 768px) {
  :root { --container-pad: 6vw; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .hero { min-height: 90vh; padding-top: 80px; }
  .hero-ctas { flex-direction: column; width: 100%; align-items: stretch; }
  .hero-ctas .btn { width: 100%; }
  .orb { width: 180px; height: 180px; }
  .orb.orb-big { width: 240px; height: 240px; }
  .stats-grid, .offres-grid, .tiers, .pillars {
    grid-template-columns: 1fr;
  }
  .section { padding: 80px 0; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .big-metric { padding: 40px 30px; }
  .video-close { top: 20px; right: 20px; width: 40px; height: 40px; font-size: 24px; }
  .video-modal { padding: 20px; }
  .cta-buttons { flex-direction: column; width: 100%; align-items: stretch; }
  .cta-buttons .btn { width: 100%; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 80px; }
  .hero-sub { font-size: 22px; }
  .section-title { font-size: 40px; }
  .section-title.giant { font-size: 90px; }
  .orb { width: 150px; height: 150px; }
  .stat-card, .pillar, .offre-card, .tier { padding: 36px 28px; }
}