/* ============================================================
   main.css — SnipeKit shared styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Outfit:wght@300;400;500;600&family=JetBrains+Mono:wght@400;600;700&display=swap');

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  /* Noirs étagés */
  --bg-base:       #090B0E;
  --bg-surface:    #0E1216;
  --bg-elevated:   #141A22;
  --bg-raised:     #1B2230;

  /* Bordures — subtiles */
  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(255,255,255,0.12);
  --border-accent: rgba(0,217,184,0.2);

  /* Texte */
  --text-primary:   #E8EBF0;
  --text-secondary: #626C7A;
  --text-muted:     #353E4A;

  /* Teal — accent rare, seulement où ça compte */
  --accent:        #00D9B8;
  --accent-dim:    #00A88F;
  --accent-glow:   rgba(0,217,184,0.06);

  /* Fonts */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Outfit', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Easing premium */
  --ease: cubic-bezier(0.25, 0, 0, 1);

  /* Radii */
  --r-sm:  6px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  28px;

  /* Layout */
  --container-max: 1160px;
  --container-pad: clamp(1.25rem, 4vw, 2.5rem);
  --header-h:      68px;
  --section-pad:   clamp(5rem, 9vw, 9rem);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Grain très subtil */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Utilitaires ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Boutons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.82rem 1.7rem;
  border-radius: var(--r-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1;
  transition: all 400ms var(--ease);
  white-space: nowrap;
  position: relative;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: #090B0E;
  font-weight: 600;
}
.btn-primary:hover {
  background: #0DF5D8;
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-hover);
}
.btn-secondary:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(9,11,14,0.9);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid transparent;
  transition: border-color 400ms var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--border); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  transition: opacity 300ms var(--ease);
}
.logo:hover { opacity: 0.65; }

.logo-mark {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-mark svg { width: 14px; height: 14px; color: #090B0E; }

/* Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  margin-left: auto;
}
.main-nav a {
  padding: 0.4rem 0.85rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 250ms var(--ease), background 250ms var(--ease);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.header-cta {
  margin-left: 1.25rem;
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 9px;
  border-radius: var(--r-sm);
  margin-left: auto;
  transition: background 250ms var(--ease);
}
.burger:hover { background: rgba(255,255,255,0.05); }
.burger-line {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 400ms var(--ease), opacity 250ms var(--ease);
  transform-origin: center;
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(9,11,14,0.97);
  backdrop-filter: blur(20px);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 2rem;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 0.8rem 2rem;
  border-radius: var(--r-md);
  width: 100%;
  text-align: center;
  transition: color 250ms var(--ease), background 250ms var(--ease);
}
.mobile-nav a:hover { color: var(--accent); background: var(--accent-glow); }
.mobile-nav .btn-primary {
  margin-top: 1.25rem;
  width: 100%;
  justify-content: center;
}

body.nav-open .mobile-nav { display: flex; }
body.nav-open .burger-line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
body.nav-open .burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
body.nav-open .burger-line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 3rem;
  margin-top: 2rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-brand { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-brand .logo { font-size: 1rem; }
.footer-disclaimer { font-size: 0.775rem; color: var(--text-muted); line-height: 1.55; }
.footer-links { display: flex; align-items: center; gap: 1.75rem; flex-wrap: wrap; }
.footer-links a {
  font-size: 0.825rem;
  color: var(--text-muted);
  transition: color 250ms var(--ease);
  letter-spacing: 0.02em;
}
.footer-links a:hover { color: var(--text-secondary); }

/* ── Scroll reveal ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Keyframes ──────────────────────────────────────────────── */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(2); opacity: 0; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .main-nav, .header-cta { display: none; }
  .burger { display: flex; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ── Prefers-reduced-motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-line-inner { opacity: 1 !important; transform: none !important; }
}