/* Base : remise à zéro légère, typographie, primitives de mise en page. Toute valeur visuelle vient d'un jeton. */

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

html {
  font-size: var(--text-base);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-ground);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern", "liga", "calt";
}

img, svg, video { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  color: var(--color-ink);
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}
h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem); }
h3 { font-size: 1.25rem; font-family: var(--font-body); letter-spacing: 0; line-height: 1.3; }
h4 { font-size: 1.0625rem; font-family: var(--font-body); letter-spacing: 0; line-height: 1.4; }

p, ul, ol, dl { margin: 0 0 var(--space-4); }
p, li, dd { max-width: var(--measure); }
small, .small { font-size: 0.875rem; }
strong, b { font-weight: 600; }

a { color: var(--color-accent-text); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 2px;
}
:focus:not(:focus-visible) { outline: none; }

hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-7) 0; }

code, kbd, .mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

/* Étiquette système en capitales (Mono, 10–13 px, interlettrage) */
.kicker, .label-mono {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--color-accent-text);
  margin: 0 0 var(--space-3);
}
.label-mono { color: var(--color-slate); }

.text-2 { color: var(--color-text-2); }
.text-muted { color: var(--color-text-muted); }
.lead { font-size: 1.125rem; color: var(--color-slate); max-width: var(--measure); }
.measure { max-width: var(--measure); }

/* Mise en page */
.shell {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
@media (min-width: 760px) { .shell { padding: 0 var(--space-10); } }

.page { padding-top: var(--space-8); padding-bottom: var(--space-12); }
.page--narrow { max-width: 560px; margin: 0 auto; }
.page--medium { max-width: 760px; margin: 0 auto; }

.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-7); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.split { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; justify-content: space-between; }
.grid-2 { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
@media (min-width: 900px) { .grid-2 { grid-template-columns: 1fr 1fr; } }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--space-4); top: -100px;
  padding: var(--space-2) var(--space-4);
  background: var(--color-slate-night); color: var(--color-on-primary);
  border-radius: var(--radius-sm); z-index: 100;
}
.skip-link:focus { top: var(--space-4); }

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