/* Base : reset léger, typographie, utilitaires, logo, boutons. */

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: var(--weight-body);
  font-size: var(--fs-md);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

a { color: var(--color-heading); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--color-hover-line); }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}
[tabindex="-1"]:focus { outline: none; }

h1, h2, h3 { margin: 0; color: var(--color-heading); }

.display,
.screen-title {
  font-family: var(--font-display);
  font-weight: var(--weight-display);
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-wrap: balance;
}
.display { font-size: var(--fs-2xl); }
.screen-title { font-size: var(--fs-xl); line-height: 1.15; }

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: var(--fs-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.lead {
  margin: 1.25rem 0 0;
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 34rem;
}

.sr-only {
  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: 1rem; top: -100px;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 1rem; color: var(--color-on-accent); }

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---- Logo : un seul fichier, couleur pilotée par le thème (CSS mask) ---- */
.logo {
  display: inline-block;
  flex: none;
  background-color: var(--color-logo);
  -webkit-mask: var(--logo-src) center / contain no-repeat;
          mask: var(--logo-src) center / contain no-repeat;
}
.logo--lockup { --logo-src: url("../assets/logo-laser26.png"); aspect-ratio: 442 / 832; }
.logo--mono   { --logo-src: url("../assets/logo-laser26-monogramme.png"); aspect-ratio: 442 / 702; }

/* ---- Boutons ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.btn-lg { min-height: 54px; padding-inline: 2rem; font-size: var(--fs-md); }

.btn-primary { background: var(--color-accent); color: var(--color-on-accent); }
.btn-primary:hover:not(:disabled) { background: var(--color-accent-hover); }
.btn-primary:disabled { opacity: 0.38; cursor: not-allowed; }
.btn-primary[aria-busy="true"] { opacity: 0.75; cursor: progress; }

.btn-ghost {
  background: transparent;
  color: var(--color-heading);
  border-color: var(--color-line-strong);
}
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-muted); }

.btn-link {
  padding: 0.5rem 0;
  border: 0;
  background: none;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.btn-link:hover { color: var(--color-heading); }

/* ---- Apparition des écrans -------------------------------------------- */
.screen { animation: screen-in 360ms ease both; }
@keyframes screen-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}