/*
 * Sans mètre — page d'accueil (/).
 */
.home { overflow-x: hidden; }
.home main { outline: none; }

/* ------------------------------------------------------------------ en-tête */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); min-height: 64px; }
.brand .logo { width: 2rem; height: 2rem; color: var(--ink); }
.site-nav ul { display: flex; align-items: center; gap: var(--space-2); list-style: none; margin: 0; padding: 0; }
.site-nav li { margin: 0; }
.site-nav a:not(.btn) {
  display: none;
  padding: 0.5rem 0.6rem;
  min-height: var(--tap);
  align-items: center;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-s);
}
.site-nav a:not(.btn):hover { background: var(--paper-2); }
@media (min-width: 48rem) { .site-nav a:not(.btn) { display: inline-flex; } }

/* ------------------------------------------------------------------ héros */
.hero { padding: var(--space-6) 0 var(--space-7); position: relative; }
.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--thread) 0 10px, transparent 10px 17px);
  opacity: 0.5;
}
.hero-grid { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 56rem) { .hero-grid { grid-template-columns: 1.15fr 1fr; gap: var(--space-7); } }
.hero h1 { font-size: var(--step-4); line-height: 1.05; margin-bottom: var(--space-4); }
.hero h1 .accent { color: var(--thread); font-style: italic; }
.hero .lead { max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin: var(--space-5) 0; }
.hero-actions .btn { flex: 1 1 12rem; }
@media (min-width: 34rem) { .hero-actions .btn { flex: 0 0 auto; } }
.hero-points { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); color: var(--ink-2); font-weight: 600; font-size: var(--step--1); }
.hero-points li { display: flex; gap: var(--space-2); align-items: center; margin: 0; }
.hero-points .icon { color: var(--sage); }

.hero-visual { max-width: 26rem; width: 100%; margin-inline: auto; }
.hero-svg { width: 100%; height: auto; overflow: visible; }
.hv-phone { fill: var(--ink); }
.hv-screen { fill: var(--paper-2); }
.hv-sheet { fill: var(--surface); stroke: var(--ink-2); stroke-width: 1.2; }
.hv-body { fill: color-mix(in srgb, var(--thread) 14%, transparent); stroke: var(--thread); stroke-width: 1.6; stroke-dasharray: 5 4; stroke-linejoin: round; }
.hv-arm { fill: none; stroke: var(--thread); stroke-width: 1.2; stroke-dasharray: 3 3; }
.hv-line { stroke: var(--sage); stroke-width: 1.4; stroke-dasharray: 2 3; }
.hv-text { font: 600 9px var(--font-sans); fill: var(--sage); }
.hv-caption { font: 600 11px var(--font-sans); fill: var(--ink-2); letter-spacing: 0.08em; text-transform: uppercase; }
.hv-tag rect { fill: var(--surface); stroke: var(--line-strong); stroke-width: 1; filter: drop-shadow(0 6px 12px rgb(0 0 0 / 12%)); }
.hv-tag text { font: 700 12px var(--font-sans); fill: var(--ink); }

/* ------------------------------------------------------------------ sections */
.section { padding: var(--space-7) 0; }
.section-tinted { background: var(--paper-2); }
.section-title { font-size: var(--step-3); max-width: 40rem; margin-bottom: var(--space-5); }

.link-card { padding: var(--space-6) var(--space-5); }
.link-card h2 { font-size: var(--step-2); }
.token-form { display: grid; gap: var(--space-4); margin: var(--space-4) 0; }
@media (min-width: 40rem) {
  .token-form { grid-template-columns: 1fr auto; align-items: start; }
  .token-form .btn { margin-top: 1.95rem; }
}

.how-grid { display: grid; gap: var(--space-5); }
@media (min-width: 56rem) { .how-grid { grid-template-columns: 1fr 1fr; } }
.how-head { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.how-head .icon { color: var(--thread); }
.how-head h3 { margin: 0; font-size: var(--step-2); }
.how-card .list-steps strong + span { display: block; }

.stats { list-style: none; padding: 0; margin: 0 0 var(--space-5); display: grid; gap: var(--space-4); }
@media (min-width: 48rem) { .stats { grid-template-columns: repeat(3, 1fr); } }
.stat {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-5);
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  margin: 0;
}
.stat-value { font-family: var(--font-serif); font-size: var(--step-3); font-weight: 700; color: var(--thread); line-height: 1.1; }
.stat-label { color: var(--ink-2); }
.precision-notes { max-width: 46rem; }
.precision-notes .note { padding-left: var(--space-4); border-left: 3px solid var(--thread); }

.sheet-grid { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 56rem) { .sheet-grid { grid-template-columns: 1fr 1fr; } }
.sheet-visual { max-width: 30rem; width: 100%; margin-inline: auto; }
.sheet-svg { width: 100%; height: auto; overflow: visible; }
.sv-paper { fill: #fffdf9; stroke: var(--line-strong); stroke-width: 1; filter: drop-shadow(0 10px 18px rgb(0 0 0 / 12%)); }
.sv-frame { fill: none; stroke: #1f2230; }
.sv-marker { fill: #1f2230; }
.sv-marker-bit { fill: #fffdf9; }
.sv-foot { fill: rgb(168 71 44 / 15%); stroke: #a8472c; stroke-width: 1.5; stroke-dasharray: 4 3; }
.sv-scale { stroke: #1f2230; stroke-width: 3; }
.sv-text { font: 700 11px var(--font-sans); fill: #1f2230; }
.sv-caption { font: 600 12px var(--font-sans); fill: var(--ink-2); }

.section-ink { background: var(--ink); color: var(--paper); }
.section-ink .eyebrow { color: #f0a88e; }
.section-ink a { color: #f6c3ae; }
.section-ink a:hover { color: #ffe1d4; }
@media (prefers-color-scheme: dark) {
  .section-ink { background: #0f1013; color: var(--ink); }
}
.privacy-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-5); }
@media (min-width: 40rem) { .privacy-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .privacy-grid { grid-template-columns: repeat(3, 1fr); } }
.privacy-grid li { margin: 0; padding: var(--space-4) 0; border-top: 2px dashed rgb(240 168 142 / 45%); }
.privacy-grid .icon { color: #f0a88e; margin-bottom: var(--space-2); }
.privacy-grid h3 { font-size: var(--step-1); margin-bottom: var(--space-2); color: inherit; }
.privacy-grid p { margin: 0; opacity: 0.88; }
.privacy-link { margin: var(--space-5) 0 0; font-weight: 650; }

/* ------------------------------------------------------------------ pied de page */
.site-footer { padding: var(--space-7) 0 calc(var(--space-6) + env(safe-area-inset-bottom)); }
.footer-grid { display: grid; gap: var(--space-5); }
@media (min-width: 48rem) { .footer-grid { grid-template-columns: 2fr 1fr; } }
.footer-grid .brand { margin-bottom: var(--space-3); }
.footer-links { display: grid; gap: var(--space-1); }
.footer-links a { display: inline-flex; min-height: var(--tap); align-items: center; font-weight: 600; }
.section[id], #lien { scroll-margin-top: 80px; }