/* ============================================================================
   Opus Studio — V3 famille Opus (sister site dark de opus-ia.ch)
   Brand system aligné 1:1 avec opus-ia.ch :
   - Fonts Bricolage Grotesque + Instrument Serif italic (signature familiale)
   - Logo "Opus.studio" identique à "Opus.ia" (carré O + wordmark + .studio italic)
   - Or chaud RÉSERVÉ aux signatures de filiation (footer, sceau) — JAMAIS commercial
   - Radius 24px cards + pill 9999px CTAs (rounded-3xl + rounded-full)
   - Eyebrow pill border + dot bleu (kill UPPERCASE+dash)
   ============================================================================ */

:root {
  /* ─── Palette dark inversée (frère jumeau d'opus-ia.ch clair) ─── */
  --bg:        #0B0E13;            /* anthracite très sombre (inversé #FAFAF7) */
  --surface:   #13171F;            /* surface (inversé #f5f5f0) */
  --surface-2: #1B2029;            /* surface-2 (inversé #efefe9) */
  --text:      #FAFAF7;            /* ivoire chaud (inversé #0F1419) */
  --text-soft: rgba(250, 250, 247, 0.78);
  --text-muted:rgba(250, 250, 247, 0.55);
  --border:    rgba(255, 255, 255, 0.08);
  --border-hi: rgba(255, 255, 255, 0.16);

  /* Accent primary : éclairci pour contraste dark (Opus IA = #1E3A5F clair, ici #4A8FFF) */
  --accent:    #4A8FFF;
  --accent-2:  #6FA8FF;
  --accent-soft: rgba(74, 143, 255, 0.12);

  /* Or chaud : signature filiation, identique à opus-ia.ch */
  --gold:      #C9A961;
  --gold-2:    #E0BD75;

  /* Typo famille Opus */
  --font-display: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
  --font-serif:   'Instrument Serif', 'Times New Roman', Georgia, serif;
  --font-body:    'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;

  --gutter: clamp(1.25rem, 4vw, 4rem);
  --max-w: 1152px;                 /* aligné max-w-6xl opus-ia.ch */
  --radius: 16px;                  /* aligned 1rem opus-ia */
  --radius-lg: 24px;               /* rounded-3xl cards */
  --radius-pill: 9999px;           /* CTAs + nav-cta + badge */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);  /* Apple-like ease-out signature */

  --shadow-soft: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  --shadow-glow: 0 10px 30px -12px rgba(74, 143, 255, .45);
}

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

/* Fallback : si JS crash, tout reste visible */
[data-anim] { opacity: 1; }
.split-line { overflow: hidden; }
.split-line > * { display: inline-block; will-change: transform; }

/* Skip-link a11y (WCAG 2.4.1) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus, .skip-link:focus-visible {
  top: 1rem;
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  font-feature-settings: "ss01", "cv11";
}

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

/* ─────────── SCROLL PROGRESS BAR ─────────── */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 2px; transform: scaleX(0); transform-origin: left center;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  pointer-events: none;
}

/* ─────────── TYPO famille ─────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.italic-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--accent-2);
}

/* ─────────── EYEBROW PILL (style opus-ia.ch) ─────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ─────────── BOUTONS (pill + shine, comme opus-ia.ch) ─────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  border-radius: var(--radius-pill);
  transition: background .3s, color .3s, border-color .3s, box-shadow .3s, transform .3s;
  white-space: nowrap;
  overflow: hidden;
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { background: var(--accent-2); box-shadow: 0 12px 36px -8px rgba(111, 168, 255, 0.7); }
/* Shine sweep diagonal hover (signature opus-ia.ch) */
.btn.shine::after {
  content: "";
  position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transition: left 0.7s var(--ease);
  pointer-events: none;
}
.btn.shine:hover::after { left: 120%; }

.btn-ghost { color: var(--text); border: 1px solid var(--border-hi); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--text); background: rgba(255,255,255,0.05); }
.btn-arrow::before { content: ""; }   /* reset */
.btn-arrow > .arrow { display: inline-block; transition: transform .35s var(--ease); }
.btn-arrow:hover > .arrow { transform: translateX(5px); }

/* ─────────── LAYOUT ─────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }
section { padding: clamp(6rem, 13vw, 9rem) 0; position: relative; }

/* ═══════════════════════════════════════════════════════════════
   NAV (logo carré "O" + wordmark + ".studio" italique — clone Opus.ia)
   ═══════════════════════════════════════════════════════════════ */
.nav {
  position: fixed; top: 16px; left: 16px; right: 16px;
  z-index: 100;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  transition: background .35s var(--ease), backdrop-filter .35s, border-color .35s;
}
.nav.scrolled {
  background: rgba(11, 14, 19, 0.7);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-color: var(--border);
}

/* Logo Opus.studio — clone Opus.ia (carré 32×32 + wordmark + .studio italique) */
.nav-logo { display: inline-flex; align-items: center; gap: 10px; }
.nav-logo-mark {
  position: relative;
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  border-radius: 10px;
}
.nav-logo-mark::after {
  content: ""; position: absolute; inset: -3px;
  border-radius: 13px;
  background: rgba(74, 143, 255, 0.35);
  filter: blur(8px);
  z-index: -1;
  transition: filter .3s var(--ease);
}
.nav-logo:hover .nav-logo-mark::after { filter: blur(12px); }
.nav-logo-word {
  font-family: var(--font-display);
  font-weight: 600; font-size: 17px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-logo-word em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-2);
}

.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-soft);
  position: relative;
  padding: 4px 0;
  transition: color .3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -3px;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .35s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); transform-origin: left; }

.nav-cta {
  display: inline-flex; align-items: center;
  padding: 9px 18px;
  background: var(--accent); color: #fff;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  transition: background .3s, box-shadow .3s;
  box-shadow: var(--shadow-glow);
}
.nav-cta:hover { background: var(--accent-2); }

.nav-burger { display: none; width: 32px; height: 32px; flex-direction: column; justify-content: center; gap: 6px; }
.nav-burger span { width: 100%; height: 1.5px; background: var(--text); transition: transform .3s, opacity .3s; }
.nav-mobile {
  position: fixed; inset: 0; z-index: 99;
  background: rgba(11, 14, 19, 0.97);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1.8rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.6rem;
  opacity: 0; pointer-events: none;
  transition: opacity .4s;
}
.nav-mobile.open { opacity: 1; pointer-events: auto; }
.nav-mobile a.accent {
  color: var(--accent-2);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

/* ═══════════════════════════════════════════════════════════════
   HERO CINÉMA — Le sol qui se révèle + conic mesh mousemove
   ═══════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  padding: 0;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Conic gradient mesh qui pivote au mousemove (anim #5 Agent 4) */
@property --hero-angle { syntax: '<angle>'; inherits: false; initial-value: 220deg; }
.hero-bg {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse 80% 60% at 30% 35%, rgba(74, 143, 255, 0.22) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 78% 75%, rgba(201, 169, 97, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse 100% 70% at 50% 100%, rgba(74, 143, 255, 0.08) 0%, transparent 60%),
    conic-gradient(from var(--hero-angle) at 50% 50%, transparent 0deg, rgba(74, 143, 255, 0.06) 70deg, transparent 140deg, rgba(201, 169, 97, 0.04) 220deg, transparent 290deg),
    var(--bg);
  transition: --hero-angle 0.8s var(--ease);
  will-change: --hero-angle;
}
.hero-grid-overlay {
  position: absolute; inset: 0; z-index: 2;
  background-image:
    linear-gradient(rgba(250, 250, 247, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 250, 247, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 75%);
  will-change: transform;
}
.hero-noise {
  position: absolute; inset: 0; z-index: 3; pointer-events: none;
  opacity: 0.35;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.05 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
}
.hero-inner {
  position: relative; z-index: 4;
  width: 100%; padding-top: 8rem; padding-bottom: 5rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 7.5vw, 6.2rem);
  font-weight: 600;
  margin: 0.5rem 0 1.8rem;
  max-width: 19ch;
  letter-spacing: -0.035em;
  line-height: 1.02;
}
.hero h1 .italic-accent {
  background: linear-gradient(180deg, var(--accent-2) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-tagline {
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  color: var(--text-soft);
  max-width: 58ch;
  margin-bottom: 2.2rem;
  line-height: 1.65;
}
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.hero-actions .btn-primary { padding: 14px 28px; font-size: 1rem; }

.hero-proof-line {
  margin-top: 1rem;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-muted);
}
.hero-proof-line strong { color: var(--gold); font-weight: 500; }

.hero-proofs {
  margin-top: 2.8rem;
  display: inline-flex; align-items: center; flex-wrap: wrap;
  gap: 0 1.6rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}
.hero-proofs span { display: inline-flex; align-items: center; gap: 10px; }
.hero-proofs span::before {
  content: ""; width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 0;
}
.scroll-cue-line {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, transparent, var(--text-soft));
  display: block;
}
.scroll-cue-label {
  font-family: var(--font-body);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   SECTION : LE PROBLÈME
   ═══════════════════════════════════════════════════════════════ */
.problem { background: var(--bg); }
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.problem-left h2 {
  font-size: clamp(2rem, 4.8vw, 3.6rem);
  margin-top: 0;
  max-width: 22ch;
}
.problem-right p {
  color: var(--text-soft);
  margin-bottom: 1.4rem;
  font-size: 1.05rem;
  line-height: 1.7;
}
.problem-right strong { color: var(--text); font-weight: 500; }
.problem-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.035em;
  line-height: 1;
  margin-bottom: 0.4rem;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   SERVICES (2 cards focus)
   ═══════════════════════════════════════════════════════════════ */
.services { background: var(--surface); position: relative; }
.services::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(74, 143, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 0%, rgba(201, 169, 97, 0.04) 0%, transparent 60%);
  pointer-events: none;
}
.services-header { text-align: center; margin-bottom: 4rem; position: relative; }
.services-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 1.2rem; max-width: 22ch; }
.services-header p { color: var(--text-soft); max-width: 60ch; margin: 0 auto; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; position: relative; }
.services-grid-2 { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; max-width: 1024px; margin: 0 auto; }

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.4rem 2.2rem;
  position: relative;
  transition: border-color .4s, transform .4s, background .4s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(360px circle at var(--mx, -100px) var(--my, -100px), rgba(74, 143, 255, 0.10), transparent 60%);
  opacity: 0; transition: opacity .4s;
  pointer-events: none;
}
.service-card:hover { border-color: var(--border-hi); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-card.featured {
  border-color: rgba(74, 143, 255, 0.4);
  box-shadow: var(--shadow-glow);
}
.service-card.featured .badge-popular {
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.service-card .tier {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-2);
  margin-bottom: 0.4rem;
}
.service-card h3 { font-size: 1.65rem; margin-bottom: 0.3rem; letter-spacing: -0.03em; }
.service-card .tier-tag {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1rem;
}
.service-card .price {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  margin: 1rem 0 0.3rem;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.service-card .price-meta { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.6rem; }
.service-card .features { list-style: none; margin-bottom: 1.8rem; flex: 1; }
.service-card .features li {
  padding: 9px 0 9px 24px;
  position: relative;
  font-size: 0.95rem;
  color: var(--text-soft);
  border-bottom: 1px dashed var(--border);
}
.service-card .features li:last-child { border-bottom: none; }
.service-card .features li::before {
  content: ""; position: absolute; left: 0; top: 14px;
  width: 12px; height: 1px; background: var(--accent);
}
.service-card .features li strong { color: var(--text); font-weight: 500; }
.service-card .cta {
  display: block;
  text-align: center;
  padding: 13px;
  border-radius: var(--radius-pill);   /* pill, signature opus-ia.ch */
  background: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background .3s, box-shadow .3s;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.service-card .cta:hover { background: var(--accent-2); box-shadow: 0 12px 36px -8px rgba(111, 168, 255, 0.7); }

.services-note {
  text-align: center;
  margin-top: 3rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}
.services-note a { color: var(--accent-2); border-bottom: 1px solid transparent; transition: border-color .3s; }
.services-note a:hover { border-color: var(--accent-2); }

/* ═══════════════════════════════════════════════════════════════
   PROCESS (4 étapes) + DEVTOOLS FAKE (méta-cohérence)
   ═══════════════════════════════════════════════════════════════ */
.process { background: var(--bg); }
.process-header { text-align: center; margin-bottom: 4rem; }
.process-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 1.2rem; max-width: 22ch; }
.process-header p { color: var(--text-soft); max-width: 56ch; margin: 0 auto; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}
.process-step {
  padding: 2.2rem 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  position: relative;
  transition: border-color .4s, transform .4s;
}
.process-step:hover { border-color: var(--border-hi); transform: translateY(-4px); }
.process-step .step-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 3.2rem;
  font-weight: 400;
  color: var(--accent-2);
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.process-step h3 { font-size: 1.18rem; margin-bottom: 0.6rem; }
.process-step p { font-size: 0.92rem; color: var(--text-soft); line-height: 1.65; }
.process-step .step-meta {
  margin-top: 1.2rem;
  font-size: 11px;
  color: var(--accent-2);
  letter-spacing: 0.05em;
}

/* DEVTOOLS FAKE (anim #7 Agent 4 — méta-cohérence) */
.devtools-window {
  margin-top: 4rem;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  background: #0D1117;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 48px -16px rgba(0,0,0,0.7);
}
.devtools-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
}
.devtools-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.devtools-dot.red { background: #FF5F57; }
.devtools-dot.yellow { background: #FEBC2E; }
.devtools-dot.green { background: #28C840; }
.devtools-title {
  flex: 1; text-align: center;
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 12px;
  color: var(--text-muted);
}
.devtools-body {
  padding: 1.5rem;
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #C9D1D9;
  min-height: 200px;
  overflow-x: auto;
}
.devtools-body .kw { color: #FF7B72; }       /* keywords */
.devtools-body .str { color: #A5D6FF; }      /* strings */
.devtools-body .com { color: #8B949E; }      /* comments */
.devtools-body .fn { color: #D2A8FF; }       /* functions */
.devtools-body .num { color: #79C0FF; }      /* numbers */
.devtools-body .tag { color: #7EE787; }      /* HTML tags */
.devtools-cursor::after {
  content: "▊";
  color: var(--accent-2);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ═══════════════════════════════════════════════════════════════
   MARQUEE infini (stacks tech)
   ═══════════════════════════════════════════════════════════════ */
.marquee {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
  overflow: hidden;
  position: relative;
}
.marquee::before, .marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0;
  width: 120px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg), transparent); }
.marquee-track {
  display: inline-flex; align-items: center;
  gap: 3rem;
  white-space: nowrap;
  will-change: transform;
}
.marquee-track span {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: -0.02em;
}
.marquee-track .marquee-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  font-size: 0;
}
.marquee-track .marquee-em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--accent-2);
}

/* ═══════════════════════════════════════════════════════════════
   SYSTÈME (sticky stack cards)
   ═══════════════════════════════════════════════════════════════ */
.system { background: var(--surface); position: relative; overflow: hidden; }
.system::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 40% at 50% 0%, rgba(74, 143, 255, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.system-header { text-align: center; margin-bottom: 4rem; position: relative; }
.system-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 0; max-width: 22ch; }
.system-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}
.system-card {
  padding: 2.2rem 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  position: relative;
  overflow: hidden;
  transition: border-color .4s, transform .4s;
}
.system-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(280px circle at var(--mx, -100px) var(--my, -100px), rgba(201, 169, 97, 0.12), transparent 60%);
  opacity: 0; transition: opacity .4s;
  pointer-events: none;
}
.system-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.system-card:hover::before { opacity: 1; }
.system-card-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}
.system-card h3 { font-size: 1.2rem; margin-bottom: 0.7rem; }
.system-card p { font-size: 0.92rem; color: var(--text-soft); line-height: 1.65; }

/* ═══════════════════════════════════════════════════════════════
   TÉMOIGNAGES (4 cards — sans or commercial, accent bleu)
   ═══════════════════════════════════════════════════════════════ */
.testimonials { background: var(--bg); }
.testimonials-header { text-align: center; margin-bottom: 4rem; }
.testimonials-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 1.2rem; max-width: 22ch; }
.testimonials-rating {
  display: inline-flex; align-items: center; gap: 14px;
  color: var(--text-soft); font-size: 0.95rem;
}
.stars { letter-spacing: 3px; color: var(--accent-2); font-size: 1.1rem; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1024px;
  margin: 0 auto;
}
.testimonial {
  padding: 2.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color .4s, transform .4s, box-shadow .4s;
  transform-style: preserve-3d;
  perspective: 800px;
}
.testimonial:hover { border-color: var(--border-hi); }
.testimonial-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 3.4rem;
  color: rgba(74, 143, 255, 0.25);
  line-height: 0.6;
  margin-bottom: 0.5rem;
}
.testimonial-quote {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 1.6rem;
  color: var(--text);
}
.testimonial-author {
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 1.2rem;
  display: flex; align-items: center; gap: 0.6rem;
}
.testimonial-author strong { color: var(--text); font-weight: 500; }
.testimonial-author em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--accent-2);
}
.testimonial-author .dot { color: var(--border-hi); }

/* ═══════════════════════════════════════════════════════════════
   PRICING STRIP (3 cards anchoring)
   ═══════════════════════════════════════════════════════════════ */
.pricing-strip { background: var(--surface); }
.pricing-strip-header { text-align: center; margin-bottom: 4rem; }
.pricing-strip-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 1.2rem; max-width: 22ch; }
.pricing-strip-header p { color: var(--text-soft); max-width: 56ch; margin: 0 auto; }
.pricing-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 1rem;
  align-items: stretch;
}
.pricing-strip-card {
  padding: 2.2rem 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color .4s, transform .4s;
}
.pricing-strip-card:hover { border-color: var(--border-hi); }
.pricing-strip-card.pricing-anchor { background: transparent; border-style: dashed; }
.pricing-strip-card.pricing-anchor:hover { border-color: var(--accent-2); }
.pricing-strip-card.pricing-featured {
  border-color: rgba(74, 143, 255, 0.4);
  background: linear-gradient(180deg, rgba(74, 143, 255, 0.08), var(--bg) 80%);
  transform: scale(1.02);
  box-shadow: var(--shadow-glow);
}
.pricing-tier {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-2);
  margin-bottom: 0.6rem;
}
.pricing-amount {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}
.pricing-detail {
  color: var(--text-soft);
  font-size: 0.93rem;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.5rem;
}
.pricing-link {
  color: var(--accent-2);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color .3s;
}
.pricing-link:hover { color: var(--accent); }
.pricing-strip-note {
  text-align: center;
  margin-top: 2.5rem;
  font-size: 0.92rem;
  color: var(--text-soft);
}
.pricing-strip-note strong { color: var(--accent-2); font-weight: 500; }

/* ═══════════════════════════════════════════════════════════════
   FAQ
   ═══════════════════════════════════════════════════════════════ */
.faq { background: var(--bg); }
.faq-header { text-align: center; margin-bottom: 4rem; }
.faq-header h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.5rem auto 0; max-width: 22ch; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.6rem 0;
}
.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 500;
  padding-right: 2rem;
  position: relative;
  list-style: none;
  outline: none;
  letter-spacing: -0.015em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--accent-2);
  transition: transform .35s var(--ease);
  font-family: var(--font-body);
  font-weight: 300;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(135deg); }
.faq-item p {
  margin-top: 1rem;
  color: var(--text-soft);
  font-size: 0.97rem;
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════ */
.contact { background: var(--surface); text-align: center; position: relative; overflow: hidden; }
.contact::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(74, 143, 255, 0.15), transparent 65%);
  pointer-events: none;
}
.contact-inner { max-width: 760px; margin: 0 auto; position: relative; }
.contact h2 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); margin: 0.5rem auto 1.5rem; max-width: 18ch; }
.contact-lead { color: var(--text-soft); max-width: 56ch; margin: 0 auto 3rem; font-size: 1.08rem; line-height: 1.65; }
.contact-cta-row { display: inline-flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.contact-cta-row .btn-primary { font-size: 1rem; padding: 16px 32px; }
.contact-meta { margin-top: 2.5rem; font-size: 0.92rem; color: var(--text-soft); }
.contact-meta a { color: var(--accent-2); border-bottom: 1px solid transparent; transition: border-color .3s; }
.contact-meta a:hover { border-bottom-color: var(--accent-2); }

/* Page contact */
.page-header {
  padding: clamp(7rem, 14vw, 10rem) 0 clamp(3rem, 6vw, 5rem);
  position: relative;
  border-bottom: 1px solid var(--border);
}
.page-header h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); margin: 1rem 0 1.2rem; max-width: 18ch; }
.page-header p { max-width: 60ch; color: var(--text-soft); font-size: 1.05rem; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact-info h3 { font-size: 1.3rem; margin-bottom: 1.2rem; color: var(--accent-2); }
.contact-info p { margin-bottom: 0.6rem; font-size: 0.95rem; color: var(--text-soft); }
.contact-info a { color: var(--text); }
.contact-info a:hover { color: var(--accent-2); }
.contact-info .info-block { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px dashed var(--border); }
.contact-info .info-block:last-child { border-bottom: none; }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.contact-form .field { margin-bottom: 1.2rem; }
.contact-form label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%;
  padding: 13px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color .3s, box-shadow .3s;
}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 143, 255, 0.18);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background .3s, box-shadow .3s;
  box-shadow: var(--shadow-glow);
}
.contact-form button[type="submit"]:hover { background: var(--accent-2); }

/* ═══════════════════════════════════════════════════════════════
   FOOTER (avec signature "Une marque Opus IA" + carré O mini)
   ═══════════════════════════════════════════════════════════════ */
.footer { padding: 4.5rem 0 2rem; border-top: 1px solid var(--border); background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 2rem; }
.footer-logo { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 1rem; }
.footer-logo .nav-logo-mark { width: 36px; height: 36px; font-size: 16px; }
.footer-logo .nav-logo-word { font-size: 19px; }
.footer-tagline { color: var(--text-soft); font-size: 0.92rem; line-height: 1.65; max-width: 36ch; }

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  font-weight: 600;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.65rem; }
.footer-col a {
  font-size: 0.93rem;
  color: var(--text-soft);
  transition: color .3s;
}
.footer-col a:hover { color: var(--accent-2); }

/* Identité business + filiation Opus IA */
.footer-identity {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  margin-bottom: 1rem;
  display: flex; flex-wrap: wrap; gap: 0.4rem 1rem;
  font-size: 12px;
  color: var(--text-muted);
  align-items: center;
}
.footer-identity strong { color: var(--text); font-weight: 500; }
.footer-identity .dot { color: var(--border-hi); }

.parent-mark {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text-muted);
  transition: color .3s;
}
.parent-mark:hover { color: var(--text); }
.parent-mark-square {
  width: 18px; height: 18px;
  border-radius: 5px;
  background: #1E3A5F;             /* Bleu Deep d'Opus IA original */
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 600; font-size: 11px;
}
.parent-mark .gold-link {
  color: var(--gold);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  border-bottom: 1px dotted rgba(201, 169, 97, 0.4);
  transition: border-color .3s;
}
.parent-mark:hover .gold-link { border-bottom-color: var(--gold); color: var(--gold-2); }

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 12px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-soft); transition: color .3s; }
.footer-bottom a:hover { color: var(--accent-2); }

.status-pulse {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px;
}
.status-pulse .pulse {
  position: relative; display: inline-block;
  width: 8px; height: 8px;
}
.status-pulse .pulse::before, .status-pulse .pulse::after {
  content: ""; position: absolute; inset: 0;
  border-radius: 50%; background: #22c55e;
}
.status-pulse .pulse::before {
  animation: ping 1.6s cubic-bezier(0, 0, .2, 1) infinite;
  opacity: 0.75;
}
@keyframes ping { 75%, 100% { transform: scale(2.2); opacity: 0; } }

/* ═══════════════════════════════════════════════════════════════
   PAGES LÉGALES
   ═══════════════════════════════════════════════════════════════ */
.legal { padding: clamp(7rem, 14vw, 10rem) 0 5rem; }
.legal-content { max-width: 760px; margin: 0 auto; }
.legal-content h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 2rem; }
.legal-content h2 { font-size: 1.45rem; margin: 2.5rem 0 1rem; color: var(--accent-2); }
.legal-content h3 { font-size: 1.15rem; margin: 1.5rem 0 0.6rem; }
.legal-content p { margin-bottom: 1rem; color: var(--text-soft); line-height: 1.8; }
.legal-content ul { margin: 1rem 0 1rem 1.5rem; }
.legal-content li { margin-bottom: 0.5rem; color: var(--text-soft); }
.legal-content a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.legal-content strong { color: var(--text); }

/* ═══════════════════════════════════════════════════════════════
   STICKY MOBILE CTA
   ═══════════════════════════════════════════════════════════════ */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 90;
  display: none;
  background: rgba(11, 14, 19, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom)) 16px;
}
.sticky-cta a {
  flex: 1; display: block;
  padding: 14px;
  text-align: center;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
}
.sticky-cta .primary { background: var(--accent); color: #fff; }

/* ═══════════════════════════════════════════════════════════════
   CURSOR FOLLOWER
   ═══════════════════════════════════════════════════════════════ */
.cursor-follower {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  margin: -6px 0 0 -6px;
  border-radius: 50%;
  background: var(--accent);
  pointer-events: none;
  z-index: 9998;
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity .3s;
  will-change: transform;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
  .problem-grid { grid-template-columns: 1fr; gap: 2rem; }
  .problem-stats { grid-template-columns: 1fr; gap: 1rem; }
  .services-grid, .services-grid-2,
  .process-grid, .system-grid,
  .testimonials-grid, .pricing-strip-grid,
  .footer-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .pricing-strip-card.pricing-featured { transform: none; }
  .sticky-cta { display: flex; }
  body { padding-bottom: 80px; }
  .hero h1 { font-size: clamp(2.2rem, 9vw, 4rem); }
  .cursor-follower { display: none; }
  .nav { left: 8px; right: 8px; padding: 10px 16px; }
  .footer-identity { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

/* ═══════════════════════════════════════════════════════════════
   ACCESSIBILITÉ
   ═══════════════════════════════════════════════════════════════ */
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .scroll-progress, .cursor-follower, .scroll-cue, .marquee::before, .marquee::after { display: none !important; }
}