/* ============================================================
   ADAM BOARDS — Design System v2
   "Financial Precision Brutalism"
   ============================================================ */

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

:root {
  /* — Couleurs Adam Boards (extraites du logo) — */
  --c-primary: #1A1A1A;     /* Noir profond */
  --c-accent:  #F4CC1A;     /* Jaune Adam */
  --c-brand:   #3DA5D9;     /* Bleu Adam (ADAM BOARDS) */
  --c-data:    #4CAF50;     /* Vert Adam (positif) */
  --c-warn:    #E63946;     /* Rouge Adam (alertes) */
  --c-bg:      #FEFEFE;     /* Blanc cassé */
  --c-gray-50:  #F8F8F8;
  --c-gray-200: #E8E8E8;
  --c-gray-500: #888888;

  /* — Typographies — */
  --f-display: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --f-body:    'Inter', system-ui, sans-serif;
  --f-mono:    'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* — Hiérarchie typographique (golden ratio) — */
  --t-xs:    0.8rem;        /* 12.8px */
  --t-sm:    0.9rem;        /* 14.4px */
  --t-base:  1rem;          /* 16px   */
  --t-lg:    1.25rem;       /* 20px   1.25 */
  --t-xl:    1.768rem;      /* 28px   1.414 */
  --t-2xl:   2.5rem;        /* 40px   */
  --t-3xl:   3.815rem;      /* 61px   1.618³ */
  --t-4xl:   6.18rem;       /* 99px   */

  /* — Spacing (8px base + golden) — */
  --s-1: 8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 40px;
  --s-5: 64px;
  --s-6: 96px;
  --s-7: 144px;

  /* — Effets — */
  --shadow-sm:  0 4px 12px rgba(0,0,0,0.04);
  --shadow:     0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg:  0 20px 40px rgba(0,0,0,0.08);
  --shadow-xl:  0 32px 64px rgba(0,0,0,0.12);
  --border:     1px solid rgba(0,0,0,0.06);
  --border-strong: 1px solid rgba(0,0,0,0.12);

  /* — Animation — */
  --ease:    cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast:  180ms;
  --t-mid:   320ms;
  --t-slow:  600ms;

  --max-w: 1280px;
}

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

body {
  font-family: var(--f-body);
  font-feature-settings: "ss01", "cv02";
  color: var(--c-primary);
  background: var(--c-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Grain subtle */
  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='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

img, svg { max-width: 100%; display: block; height: auto; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ── Typographie ─────────────────────────────────── */
.h-display, h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--c-primary);
}
h1 { font-size: clamp(2.5rem, 6vw, var(--t-4xl)); }
h2 { font-size: clamp(2rem, 4vw, var(--t-3xl)); }
h3 { font-size: clamp(1.4rem, 2.5vw, var(--t-xl)); letter-spacing: -0.015em; }

.t-mono { font-family: var(--f-mono); letter-spacing: -0.02em; }
.t-sm   { font-size: var(--t-sm); }
.t-xs   { font-size: var(--t-xs); }
.t-mute { color: var(--c-gray-500); }

/* — Eyebrow (label au-dessus des titres) — */
.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-gray-500);
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
}
.eyebrow::before {
  content: '';
  width: 16px; height: 1px;
  background: currentColor;
}
.eyebrow.accent { color: var(--c-accent); }
.eyebrow.data   { color: var(--c-data); }

/* ── Layout ──────────────────────────────────────── */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s-3); }
@media (min-width: 768px) { .wrap { padding: 0 var(--s-4); } }

.section { padding: var(--s-6) 0; }
.section-lg { padding: var(--s-7) 0; }
.section-sm { padding: var(--s-5) 0; }

/* — Grilles asymétriques — */
.split-60-40 { display: grid; grid-template-columns: 1fr; gap: var(--s-5); }
.split-40-60 { display: grid; grid-template-columns: 1fr; gap: var(--s-5); }
@media (min-width: 880px) {
  .split-60-40 { grid-template-columns: 6fr 4fr; gap: var(--s-6); }
  .split-40-60 { grid-template-columns: 4fr 6fr; gap: var(--s-6); }
}

.grid-3 { display: grid; gap: var(--s-3); grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.grid-4 { display: grid; gap: var(--s-3); grid-template-columns: 1fr; }
@media (min-width: 600px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* ── Boutons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 24px 16px 28px; /* asymétrique */
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 0.94rem;
  letter-spacing: -0.01em;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--c-primary);
  color: var(--c-bg);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.18);
  background: #1a1a1a;
}
.btn-accent {
  background: var(--c-accent);
  color: var(--c-primary);  /* texte noir sur fond jaune (lisibilité) */
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(244,204,26,0.45);
}
.btn-brand {
  background: var(--c-brand);
  color: var(--c-bg);
}
.btn-brand:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(61,165,217,0.45);
}
.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  border: 1px solid var(--c-primary);
}
.btn-ghost:hover {
  background: var(--c-primary);
  color: var(--c-bg);
}
.btn .arrow {
  transition: transform var(--t-fast) var(--ease);
}
.btn:hover .arrow { transform: translateX(4px); }

/* ── Cards ───────────────────────────────────────── */
.card {
  background: var(--c-bg);
  border: var(--border);
  border-radius: 8px;
  padding: var(--s-3);
  transition: transform var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}
.card:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card-tilt {
  transform: rotate(-1.5deg);
}
.card-tilt:nth-child(2n) { transform: rotate(1deg); }
.card-tilt:nth-child(3n) { transform: rotate(-0.5deg); }
.card-tilt:hover {
  transform: rotate(0deg) scale(1.03);
}

/* ── Stat (chiffres mono) ────────────────────────── */
.stat {
  font-family: var(--f-mono);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--c-primary);
}
.stat-xl { font-size: clamp(3rem, 6vw, 5rem); }
.stat-lg { font-size: clamp(2rem, 4vw, 3rem); }
.stat-md { font-size: clamp(1.5rem, 3vw, 2rem); }

.stat-accent { color: var(--c-accent); }
.stat-data   { color: var(--c-data); }

.stat-label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-gray-500);
  margin-top: var(--s-1);
}

/* ── Tag (mini badge mono) ───────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--c-primary);
  border-radius: 999px;
  color: var(--c-primary);
}
.tag-accent { border-color: var(--c-accent); color: var(--c-accent); }
.tag-data   { border-color: var(--c-data);   color: var(--c-data); }
.tag-fill   { background: var(--c-primary); color: var(--c-bg); }

/* ── Marquee divider ─────────────────────────────── */
.divider {
  height: 1px;
  background: var(--c-gray-200);
  border: none;
}

/* ── Header ──────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(254,254,254,0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--c-gray-200); }
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.2rem;
  color: var(--c-primary);
}
.site-logo .dot { width: 8px; height: 8px; background: var(--c-accent); border-radius: 50%; }
.site-nav {
  display: none;
  gap: var(--s-3);
  align-items: center;
}
@media (min-width: 880px) { .site-nav { display: flex; } }
.site-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--c-primary);
  position: relative;
  transition: color var(--t-fast) var(--ease);
}
.site-nav a:hover { color: var(--c-accent); }
.site-nav a.cta {
  background: var(--c-primary);
  color: var(--c-bg);
  padding: 10px 18px;
  border-radius: 4px;
}
.site-nav a.cta:hover { background: var(--c-accent); color: var(--c-bg); }

.menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.menu-btn span { width: 24px; height: 2px; background: var(--c-primary); transition: transform var(--t-fast) var(--ease); }
@media (min-width: 880px) { .menu-btn { display: none; } }

.mobile-menu {
  display: none;
  border-top: 1px solid var(--c-gray-200);
  background: var(--c-bg);
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: var(--s-2) var(--s-3);
  border-bottom: 1px solid var(--c-gray-50);
  font-weight: 500;
}

/* ── Footer ──────────────────────────────────────── */
.site-footer {
  background: var(--c-primary);
  color: var(--c-bg);
  padding: var(--s-6) 0 var(--s-3);
  margin-top: var(--s-6);
}
.site-footer h4 {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--s-2);
}
.site-footer a {
  display: block;
  color: rgba(255,255,255,0.85);
  font-size: 0.92rem;
  padding: 6px 0;
  transition: color var(--t-fast) var(--ease);
}
.site-footer a:hover { color: var(--c-accent); }
.site-footer .footer-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .site-footer .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer .footer-bottom {
  margin-top: var(--s-5);
  padding-top: var(--s-3);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--s-2);
}

/* ── Animations (staggered reveals) ──────────────── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  }
  .reveal.in {
    opacity: 1;
    transform: none;
  }
  .reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  }
  .reveal-stagger.in > *:nth-child(1) { transition-delay: 0ms;   }
  .reveal-stagger.in > *:nth-child(2) { transition-delay: 100ms; }
  .reveal-stagger.in > *:nth-child(3) { transition-delay: 200ms; }
  .reveal-stagger.in > *:nth-child(4) { transition-delay: 300ms; }
  .reveal-stagger.in > *:nth-child(5) { transition-delay: 400ms; }
  .reveal-stagger.in > *:nth-child(6) { transition-delay: 500ms; }
  .reveal-stagger.in > * { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Utilities ───────────────────────────────────── */
.bg-dark   { background: var(--c-primary); color: var(--c-bg); }
.bg-dark h1, .bg-dark h2, .bg-dark h3 { color: var(--c-bg); }
.bg-soft   { background: var(--c-gray-50); }
.bg-accent { background: var(--c-accent); color: var(--c-primary); }
.text-accent { color: var(--c-accent); }
.text-brand  { color: var(--c-brand); }
.text-data   { color: var(--c-data); }
.text-warn   { color: var(--c-warn); }
.divider-vertical { width: 1px; background: var(--c-gray-200); }

/* — Logo Adam Boards — */
.adam-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
  color: var(--c-primary);
  text-decoration: none;
}
/* La marque est un SVG (4 icônes circulaires) */
.adam-logo .logo-mark {
  display: inline-block;
  width: 130px;
  height: 32px;
  background: url('images/logo-mark.svg') no-repeat center / contain;
  flex-shrink: 0;
}
.adam-logo .logo-text {
  color: var(--c-brand);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.adam-logo .logo-text .dot { color: var(--c-accent); }

/* Logo plus petit (header desktop) — texte caché, mark seul */
.adam-logo.compact .logo-text { display: none; }
.adam-logo.compact .logo-mark { width: 110px; height: 28px; }

/* Sur fond sombre : adapter l'apple bite (qui était noire) */
.bg-dark .adam-logo .logo-mark,
.site-footer .adam-logo .logo-mark {
  background-image: url('images/logo-mark-dark.svg');
}

/* Variante hero "split jaune/noir" inspirée du logo */
.hero-split-color {
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
}
@media (min-width: 880px) {
  .hero-split-color { grid-template-columns: 1fr 1fr; }
}
.hero-split-color > .col-yellow { background: var(--c-accent); padding: var(--s-5) var(--s-4); }
.hero-split-color > .col-dark   { background: var(--c-primary); color: var(--c-bg); padding: var(--s-5) var(--s-4); }

.rotate-1n { transform: rotate(-1deg); }
.rotate-2  { transform: rotate(2deg); }
.rotate-3n { transform: rotate(-3deg); }

/* ── Diagonal/overlap helpers ────────────────────── */
.overlap-up { margin-top: -60px; position: relative; z-index: 2; }
.overlap-down { margin-bottom: -60px; position: relative; z-index: 2; }
.diagonal-cut-bottom {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 60px), 0 100%);
}
.diagonal-cut-top {
  clip-path: polygon(0 60px, 100% 0, 100% 100%, 0 100%);
}