/* ===== BASE ===== */
:root {
  /* ── SURFACES (near-black violacé) ── */
  --black: #0B0A12;
  --dark:  #13111C;
  --dark2: #1C1925;
  --mid:   #3A3645;

  /* ── TEXTE ── */
  --gray:  #8B8699;
  --light: #C9C5D6;
  --white: #F4F2FA;

  /* ── ACCENTS FLASHY & JOYEUX ── */
  --lime:   #C6FF3D;
  --pink:   #FF4D8D;
  --cyan:   #35E5FF;
  --violet: #A06BFF;
  --accent: var(--lime);

  /* Gradient signature multicolore */
  --grad: linear-gradient(100deg, var(--lime) 0%, var(--cyan) 38%, var(--violet) 66%, var(--pink) 100%);

  /* ── COMPAT : anciens tokens "gold" repointés sur l'accent lime ── */
  --gold:      var(--lime);
  --gold-lt:   #D9FF6E;
  --gold-dk:   #A6E020;
  --gold-glow: rgba(198, 255, 61, .25);

  /* ── FONTS ── */
  --display: 'Bricolage Grotesque', system-ui, sans-serif;
  --serif:   'Bricolage Grotesque', system-ui, sans-serif; /* compat titres */
  --sans:    'DM Sans', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  --ease:   cubic-bezier(.16, 1, .3, 1);
  --spring: cubic-bezier(.34, 1.56, .64, 1);
  --nav: 72px;
}

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

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

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -.03em;
}

h1 { font-size: clamp(2.8rem, 6vw, 6rem); }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.7rem); }
p  { font-size: clamp(.9rem, 1.1vw, 1rem); color: var(--light); }

/* FOCUS VISIBLE — accessibilité clavier */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* SCREEN READER ONLY */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* SKIP LINK */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 99999;
  padding: .6rem 1.2rem;
  background: var(--gold);
  color: var(--black);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: top .2s;
}
.skip-link:focus-visible { top: 1rem; outline: 2px solid var(--black); }

/* SCROLLBAR */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--gold-dk); border-radius: 2px; }

/* NOISE OVERLAY */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .025;
  pointer-events: none;
  z-index: 9999;
}

/* REVEAL ANIMATION */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: .1s; }
.d2 { transition-delay: .2s; }
.d3 { transition-delay: .3s; }
.d4 { transition-delay: .4s; }

/* Reveal latéral — slide depuis la gauche (cascade au scroll) */
.reveal.from-left { transform: translateX(-70px); }
.reveal.from-left.visible { transform: translateX(0); }

/* Accessibilité : pas d'animation si l'utilisateur la réduit */
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
}

/* BUTTONS */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .85rem 2rem;
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: all .35s var(--ease);
  text-decoration: none;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, .06);
  transform: translateX(-100%);
  transition: transform .45s var(--ease);
}
.btn:hover::before { transform: translateX(0); }
.btn-primary {
  background: var(--lime);
  color: #0B0A12;
  font-weight: 600;
}
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(198, 255, 61, .45), 0 10px 30px rgba(0, 0, 0, .4);
  transform: translateY(-3px);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, .2);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 24px rgba(53, 229, 255, .25);
  transform: translateY(-3px);
}
.bicon {
  font-size: .9em;
  opacity: .7;
  font-family: var(--mono);
  transition: opacity .3s, transform .3s;
}
.btn:hover .bicon { opacity: 1; transform: translateX(3px); }

/* SECTION UTILITIES */
.sec {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 6vw, 6rem);
  max-width: 1300px;
  margin: 0 auto;
}
.sec-full { padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 6vw, 6rem); }
.sec-label {
  display: flex;
  align-items: center;
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.gold-line {
  display: inline-block;
  width: 3rem;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
  margin-right: 1rem;
}
/* Mot accentué : texte rempli par le dégradé signature */
.gold {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lime), var(--cyan), var(--violet), transparent);
  opacity: .4;
}

/* PAGES */
.page { display: none; min-height: 100dvh; padding-top: var(--nav); }
.page.active { display: block; animation: pageIn .55s var(--ease) both; }
@keyframes pageIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}