/* ============================================================
   Studio web & IA : feuille de style
   Direction : dark luxury, éditorial, souveraineté Québec.
   Les tokens de couleur (--ink, --accent, ...) sont injectés
   dans :root par build.py depuis brand.json.
   ============================================================ */

:root {
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Instrument Sans", "Inter", system-ui, -apple-system, sans-serif;

  --text-hero: clamp(2.6rem, 1.2rem + 5.6vw, 6.2rem);
  --text-h2: clamp(1.9rem, 1.2rem + 2.4vw, 3.2rem);
  --text-h3: clamp(1.25rem, 1.05rem + 0.7vw, 1.6rem);
  --text-lead: clamp(1.05rem, 0.98rem + 0.45vw, 1.35rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  --text-sm: 0.875rem;

  --space-section: clamp(4.5rem, 3rem + 7vw, 9rem);
  --maxw: 1200px;
  --radius: 14px;
  --radius-lg: 22px;

  --dur: 280ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--paper);
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* atmosphere : halo accent + grain léger */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60vw 60vw at 78% -8%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(50vw 40vw at -10% 12%, color-mix(in oklab, var(--cool) 12%, transparent), transparent 55%),
    var(--ink);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

/* ---------- typographie ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 380; line-height: 1.04; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: var(--text-hero); font-weight: 400; }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); font-weight: 460; letter-spacing: 0; }
.lead { font-size: var(--text-lead); color: color-mix(in oklab, var(--paper) 86%, transparent); max-width: 54ch; }
.muted { color: var(--muted); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-body);
  font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-soft);
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); display: inline-block; }

.accent { color: var(--accent-soft); font-style: italic; }

/* ---------- boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: var(--text-base);
  padding: 0.85rem 1.5rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  color: #1a1407;
  box-shadow: 0 10px 30px -12px color-mix(in oklab, var(--accent) 70%, transparent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -14px color-mix(in oklab, var(--accent) 80%, transparent); }
.btn-ghost { border-color: var(--line); color: var(--paper); background: color-mix(in oklab, var(--surface) 50%, transparent); }
.btn-ghost:hover { border-color: var(--accent); transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--accent-soft); outline-offset: 3px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--ink) 72%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding-block: 1rem; }
.brand { font-family: var(--font-display); font-size: 1.5rem; font-weight: 500; letter-spacing: -0.02em; }
.brand b { color: var(--accent-soft); font-weight: 500; }
.nav-links { display: flex; align-items: center; gap: 1.8rem; }
.nav-links a { font-size: var(--text-sm); color: color-mix(in oklab, var(--paper) 78%, transparent); transition: color var(--dur) var(--ease); }
.nav-links a:hover { color: var(--paper); }
.lang-switch { font-size: var(--text-sm); color: var(--muted); border: 1px solid var(--line); padding: 0.3rem 0.7rem; border-radius: 999px; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.lang-switch:hover { border-color: var(--accent); color: var(--paper); }
.nav-toggle { display: none; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-mini { display: flex; align-items: center; gap: 0.8rem; }
}

/* ---------- hero ---------- */
.hero { padding-block: clamp(4rem, 2rem + 9vw, 8.5rem) var(--space-section); position: relative; }
.hero h1 { margin-top: 1.4rem; max-width: 16ch; }
.hero .lead { margin-top: 1.6rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.4rem; }

/* bandeau confiance */
.trust { display: flex; flex-wrap: wrap; gap: 0.6rem 1.6rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.trust span { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--text-sm); color: var(--muted); }
.trust span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

/* ---------- sections ---------- */
section { padding-block: var(--space-section); }
.section-head { max-width: 60ch; margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4rem); }
.section-head h2 { margin-top: 0.9rem; }

/* services : bento 2 colonnes asymétrique */
.services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
@media (max-width: 820px) { .services-grid { grid-template-columns: 1fr; } }
.service-card {
  position: relative; overflow: hidden;
  background: linear-gradient(165deg, var(--surface), var(--ink-soft));
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 1rem + 2vw, 2.6rem);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.service-card:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--accent) 50%, var(--line)); }
.service-card::after {
  content: ""; position: absolute; inset: -40% 50% auto -40%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.service-card:hover::after { opacity: 0.5; inset: 0 0 auto 0; height: 2px; }
.service-icon { width: 46px; height: 46px; color: var(--accent-soft); margin-bottom: 1.2rem; }
.service-card h3 { margin-bottom: 0.7rem; }
.service-card ul { list-style: none; padding: 0; margin: 1.3rem 0 0; display: grid; gap: 0.6rem; }
.service-card li { position: relative; padding-left: 1.5rem; font-size: var(--text-sm); color: color-mix(in oklab, var(--paper) 82%, transparent); }
.service-card li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }
.services-secondary { margin-top: 1.6rem; color: var(--muted); font-size: var(--text-base); }
.services-secondary a { color: var(--accent-soft); border-bottom: 1px solid currentColor; }

/* prix */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
@media (max-width: 980px) { .pricing-grid { grid-template-columns: 1fr; max-width: 460px; } }
.price-card {
  display: flex; flex-direction: column;
  background: var(--ink-soft); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 1rem + 1.5vw, 2.2rem);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.price-card:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--accent) 45%, var(--line)); }
.price-card.featured { border-color: color-mix(in oklab, var(--accent) 55%, var(--line)); box-shadow: 0 30px 70px -40px color-mix(in oklab, var(--accent) 60%, transparent); }
.price-badge { align-self: flex-start; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-soft); border: 1px solid color-mix(in oklab, var(--accent) 40%, var(--line)); padding: 0.25rem 0.7rem; border-radius: 999px; margin-bottom: 1.3rem; }
.price-card h3 { margin-bottom: 0.4rem; }
.price-amount { font-family: var(--font-display); font-size: 1.5rem; color: var(--paper); margin-bottom: 1.4rem; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 1.8rem; display: grid; gap: 0.7rem; flex-grow: 1; }
.price-card li { position: relative; padding-left: 1.6rem; font-size: var(--text-sm); color: color-mix(in oklab, var(--paper) 84%, transparent); }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.price-card .btn { width: 100%; justify-content: center; }
.pricing-foot { margin-top: 1.8rem; text-align: center; color: var(--muted); font-size: var(--text-sm); }

/* process : timeline numérotée */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }
.step { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.step .n { font-family: var(--font-display); font-size: 2.2rem; color: color-mix(in oklab, var(--accent) 80%, var(--paper)); display: block; margin-bottom: 0.6rem; }
.step h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
.step p { font-size: var(--text-sm); color: var(--muted); margin: 0; }

/* why : panneau */
.why { background: linear-gradient(160deg, var(--surface), var(--ink-soft)); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(2rem, 1rem + 4vw, 4rem); }
.why .lead { max-width: 70ch; color: color-mix(in oklab, var(--paper) 88%, transparent); }

/* faq */
.faq-list { display: grid; gap: 0.8rem; max-width: 820px; }
details.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); padding: 0 1.4rem; transition: border-color var(--dur) var(--ease); }
details.faq-item[open] { border-color: color-mix(in oklab, var(--accent) 40%, var(--line)); }
.faq-item summary { cursor: pointer; list-style: none; padding: 1.2rem 0; font-weight: 600; display: flex; justify-content: space-between; gap: 1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; line-height: 1; transition: transform var(--dur) var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin: 0 0 1.2rem; color: var(--muted); font-size: var(--text-base); }

/* cta band */
.cta-band { text-align: center; background: linear-gradient(150deg, color-mix(in oklab, var(--accent) 16%, var(--ink-soft)), var(--ink-soft)); border: 1px solid color-mix(in oklab, var(--accent) 35%, var(--line)); border-radius: var(--radius-lg); padding: clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.cta-band h2 { margin-bottom: 0.8rem; }
.cta-band .lead { margin-inline: auto; margin-bottom: 2rem; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 3rem 2.5rem; margin-top: var(--space-section); }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; align-items: center; }
.footer-grid a { color: var(--muted); font-size: var(--text-sm); }
.footer-grid a:hover { color: var(--paper); }
.footer-social { display: flex; gap: 1rem; }
.footer-meta { font-size: var(--text-sm); color: var(--muted); margin-top: 1.5rem; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }