/* ============================================================
   SIAAR — Salon International d'Affaires Afrique Russie
   Style Global — Niveau 3 Immersif
   Kinerty Web Studio — 2026
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400&family=Syne:wght@400;600;700;800&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --green:    #2D7A2D;
  --gold:     #D4892A;
  --blue:     #2B4FAB;
  --burgundy: #7B1F3A;
  --cream:    #F7F3EC;
  --dark:     #0D0D0D;
  --mid:      #1A1A1A;
  --text:     #2C2C2C;
  --muted:    #7A7A7A;
  --white:    #FFFFFF;

  --grad-hero: linear-gradient(135deg, #0D0D0D 0%, #1A1013 30%, #0D1A2E 70%, #0D0D0D 100%);
  --grad-africa: linear-gradient(90deg, #2D7A2D, #D4892A, #2B4FAB, #7B1F3A);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui:      'Syne', sans-serif;
  --font-mono:    'Space Mono', monospace;

  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);

  --topbar-h: 36px;   /* hauteur barre d'annonce fixe */
  --header-h: 72px;   /* hauteur navigation */
  --radius:   4px;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-ui);
  background: var(--dark);
  color: var(--cream);
  overflow-x: hidden;
  cursor: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .cursor, .cursor-follower { display: none !important; }
  body { cursor: auto !important; }
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Custom Cursor ──────────────────────────────────────────── */
.cursor {
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  position: fixed; top: 0; left: 0; z-index: 9999;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, background 0.3s;
  mix-blend-mode: difference;
}
.cursor-follower {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(212,137,42,0.5);
  border-radius: 50%;
  position: fixed; top: 0; left: 0; z-index: 9998;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: transform 0.35s var(--ease-expo), width 0.3s, height 0.3s, border-color 0.3s;
}
.cursor.hovering { transform: translate(-50%,-50%) scale(2); background: var(--gold); }
.cursor-follower.hovering { width: 60px; height: 60px; border-color: var(--gold); }

/* ── Progress Bar ───────────────────────────────────────────── */
#progress-bar {
  position: fixed; top: 0; left: 0; height: 2px;
  background: var(--grad-africa);
  width: 0%; z-index: 10000;
  transition: width 0.1s linear;
}

/* ── Header / Navigation ────────────────────────────────────── */
header {
  position: fixed;
  /* default: topbar=0, so header sits at top */
  top: 0;
  left: 0; right: 0;
  /* z-index sous la topbar (1200) mais au-dessus du reste */
  z-index: 1100;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%;
  transition: top 0.35s var(--ease-expo), transform 0.4s var(--ease-expo), background 0.4s;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(13,13,13,0.7);
  border-bottom: 1px solid rgba(212,137,42,0.12);
}
/* quand la topbar est présente, pousser le header en-dessous */
body.has-banner header {
  top: var(--topbar-h);
}
/* hide: sort vers le haut EN INCLUANT la topbar pour ne pas laisser de vide */
header.hidden {
  transform: translateY(calc(-100% - var(--topbar-h)));
}
/* quand bannière + header caché */
body.has-banner header.hidden {
  transform: translateY(calc(-100% - var(--topbar-h)));
}
header.scrolled { background: rgba(13,13,13,0.95); }

.logo {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 700;
  letter-spacing: 0.05em;
}
.logo img { height: 50px; width: auto; }
.logo-text span { display: block; }
.logo-text .logo-name {
  font-size: 1.3rem;
  background: var(--grad-africa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-text .logo-sub { font-family: var(--font-mono); font-size: 0.55rem; color: var(--muted); letter-spacing: 0.15em; text-transform: uppercase; }

nav { display: flex; align-items: center; gap: 2rem; }
nav a {
  font-family: var(--font-ui); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(247,243,236,0.75);
  position: relative; padding-bottom: 4px;
  transition: color 0.3s;
}
nav a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px; background: var(--gold);
  transition: width 0.35s var(--ease-expo);
}
nav a:hover { color: var(--cream); }
nav a:hover::after, nav a.active::after { width: 100%; }
nav a.active { color: var(--gold); }

.nav-cta {
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  transition: background 0.3s, color 0.3s !important;
}
.nav-cta:hover { background: var(--gold); color: var(--dark) !important; }
.nav-cta::after { display: none !important; }

/* ── Menu Burger ─────────────────────────────────────────────────
   Fixé en position fixe, TOUJOURS au-dessus de l'overlay (z:1300)
   Visible à tout moment — ne disparaît jamais.
   Animation : 3 barres → croix avec rotation fluide
   ──────────────────────────────────────────────────────────────── */
/* ═══════════════════════════════════════════════════════════
   BURGER MENU
   • Élément placé DIRECTEMENT dans <body>, après </header>
   • position:fixed fonctionne correctement (pas de stacking
     context parasite du backdrop-filter du header)
   • z-index 1300 : au-dessus de tout sans exception
   ═══════════════════════════════════════════════════════════ */
.burger {
  display: none;        /* affiché via media query @900px */
  position: fixed;
  top: calc(var(--topbar-h) + 14px);
  right: 5%;
  width: 44px;
  height: 44px;
  z-index: 1300;
  /* Style */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.25s ease;
  /* Pas d'overflow:hidden pour que les spans ne soient pas coupés */
}
.burger:hover {
  background: rgba(212, 137, 42, 0.12);
}

/* ── Les 3 barres ─────────────────────────────────────────── */
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  border-radius: 2px;
  transform-origin: center center;
  transition:
    transform 0.4s cubic-bezier(0.23, 1, 0.32, 1),
    opacity   0.2s ease;
}

/* ── État OUVERT (classe .open ajoutée par JS) ─────────────
   3 barres  →  croix
   Barre 1 : descend au centre + rotation +45°
   Barre 2 : fondu sortant
   Barre 3 : monte au centre  + rotation -45°
   ──────────────────────────────────────────────────────────
   Calcul : gap=5px, height=2px
   Centre géométrique du groupe = (5+2)/2 × 2 = 7px
   Barre 1 : translateY(7px)  → se superpose à barre 3
   Barre 3 : translateY(-7px) → se superpose à barre 1
   ──────────────────────────────────────────────────────────── */
.burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Menu Overlay ──────────────────────────────────────── */
.menu-overlay {
  position: fixed;
  inset: 0;
  /* Au-dessus du header (1100) mais SOUS le burger (1300) */
  z-index: 1250;
  background: rgba(13, 13, 13, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  /* Ouverture : clip-path du bas vers le haut */
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.8rem;
  /* Contenu centré en tenant compte de la topbar */
  padding-top: var(--topbar-h);
}
.menu-overlay.open {
  clip-path: inset(0 0 0 0);
}
.menu-overlay a {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 5rem);
  font-weight: 700;
  font-style: italic;
  color: var(--cream);
  transition: color 0.3s, transform 0.3s;
  display: flex;
  align-items: center;
  gap: 1rem;
  /* Animation d'entrée décalée — gérée par JS */
  opacity: 0;
  transform: translateY(20px);
}
.menu-overlay.open a {
  opacity: 1;
  transform: translateY(0);
}
.menu-overlay a:hover { color: var(--gold); transform: translateX(8px); }
.menu-overlay .menu-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(212,137,42,0.6);
  font-style: normal;
}

/* ── Sections ───────────────────────────────────────────────── */
section { position: relative; }

.section-label {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1rem;
  display: flex; align-items: center; gap: 1rem;
}
.section-label::before {
  content: ''; display: block; width: 40px; height: 1px; background: var(--gold);
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; }
h1 { font-size: clamp(3rem, 7vw, 7rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 2rem); }

p { font-size: 1rem; line-height: 1.75; color: rgba(247,243,236,0.82); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 5%; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-ui); font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 14px 32px; border-radius: var(--radius);
  border: none; cursor: pointer;
  position: relative; overflow: hidden;
  transition: transform 0.3s var(--ease-back);
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-101%);
  transition: transform 0.4s var(--ease-expo);
}
.btn:hover::before { transform: translateX(0); }
.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--gold); color: var(--dark); }
.btn-primary:hover { background: #e8972f; }
.btn-outline {
  background: transparent; color: var(--cream);
  border: 1px solid rgba(247,243,236,0.35);
}
.btn-outline:hover { border-color: var(--cream); }
.btn-green { background: var(--green); color: var(--white); }

/* ── Gradient Text Utility ──────────────────────────────────── */
.grad-text {
  background: var(--grad-africa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Scroll Reveal ──────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s var(--ease-expo), transform 0.8s var(--ease-expo);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left {
  opacity: 0; transform: translateX(-50px);
  transition: opacity 0.8s var(--ease-expo), transform 0.8s var(--ease-expo);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0; transform: translateX(50px);
  transition: opacity 0.8s var(--ease-expo), transform 0.8s var(--ease-expo);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 8px; padding: 2rem;
  backdrop-filter: blur(8px);
  transition: transform 0.4s var(--ease-expo), border-color 0.3s, box-shadow 0.4s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(212,137,42,0.35);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(212,137,42,0.1);
}

/* ── Stats / Chiffres ───────────────────────────────────────── */
.stat-number {
  font-family: var(--font-display); font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700; line-height: 1;
  background: var(--grad-africa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  background: #080808;
  border-top: 1px solid rgba(212,137,42,0.15);
  padding: 5rem 5% 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .logo { margin-bottom: 1.2rem; }
.footer-brand p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }
.footer-col h4 {
  font-family: var(--font-ui); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1.2rem;
}
.footer-col a {
  display: block; font-size: 0.9rem; color: var(--muted);
  margin-bottom: 0.6rem;
  transition: color 0.3s, transform 0.3s;
}
.footer-col a:hover { color: var(--cream); transform: translateX(4px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
  font-size: 0.78rem; color: var(--muted);
}
.footer-bottom a { color: var(--muted); transition: color 0.3s; }
.footer-bottom a:hover { color: var(--gold); }
.social-links { display: flex; gap: 1rem; }
.social-links a {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; color: var(--muted);
  transition: border-color 0.3s, color 0.3s, transform 0.3s;
}
.social-links a:hover {
  border-color: var(--gold); color: var(--gold);
  transform: translateY(-3px);
}
.footer-flags { display: flex; gap: 0.4rem; align-items: center; font-size: 1.1rem; }

/* ── WhatsApp Float ─────────────────────────────────────────── */
#whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 9990;
  width: 58px; height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.45);
  transition: transform 0.3s var(--ease-back), box-shadow 0.3s;
  animation: wa-pulse 3s ease-in-out infinite;
}
#whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 10px 36px rgba(37,211,102,0.6);
}
#whatsapp-float i { color: white; font-size: 1.6rem; }
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 6px 24px rgba(37,211,102,0.45); }
  50% { box-shadow: 0 6px 36px rgba(37,211,102,0.7), 0 0 0 12px rgba(37,211,102,0.08); }
}

/* ── Back to Top ────────────────────────────────────────────── */
#back-top {
  position: fixed; bottom: 100px; right: 28px; z-index: 9989;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--cream); font-size: 1rem;
  cursor: pointer;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.4s, transform 0.4s var(--ease-expo), background 0.3s;
}
#back-top.visible { opacity: 1; transform: translateY(0); }
#back-top:hover { background: var(--gold); border-color: var(--gold); color: var(--dark); }

/* ── Divider ─────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,137,42,0.4), transparent);
  margin: 0 5%;
}

/* ── Noise Overlay ──────────────────────────────────────────── */
.noise-overlay {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
}

/* ── Hero Shared ────────────────────────────────────────────── */
.hero-page {
  min-height: 50vh;
  display: flex; align-items: center;
  padding: calc(var(--header-h) + 3rem) 5% 4rem;
  position: relative;
  background: var(--grad-hero);
}
.hero-page::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(212,137,42,0.08), transparent 60%);
  pointer-events: none;
}


/* Burger ouvert : feedback visuel */
.burger.open {
  background: rgba(212, 137, 42, 0.15);
}
/* body.menu-open : header fixe, ne se cache pas */
body.menu-open header {
  transform: none !important;
}


/* ── Stagger animation (cards dans stagger-parent) ──────────
   Les cartes sont TOUJOURS visibles (opacity part de 0 → 1)
   mais s'animent en entrée de page avec un délai décalé.
   animationDelay injecté par JS.
   ─────────────────────────────────────────────────────────── */
.stagger-child-anim {
  animation: staggerIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes staggerIn {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  nav { display: none; }
  .burger { display: flex; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  #whatsapp-float { bottom: 20px; right: 20px; width: 52px; height: 52px; }
}

/* ── Animations helpers ─────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}