/* ═══════════════════════════════════════════════════════
   BASE — reset, typographie, utilitaires fondamentaux
   ═══════════════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul { list-style: none; }

/* ─── Titres ───────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--c-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h4 { font-size: 1.125rem; font-family: var(--font-body); font-weight: 600; }

p {
  color: var(--c-text-muted);
  line-height: 1.75;
}

/* ─── Container ────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* ─── Sections ─────────────────────────────────────────── */
.section {
  padding: var(--sp-20) 0;
}

.section--light {
  background: var(--c-bg);
}

.section--dark {
  background: var(--c-dark);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--c-surface);
}
.section--dark p {
  color: rgba(255,255,255,.65);
}

.section--primary {
  background: var(--c-primary);
}
.section--primary h2,
.section--primary p,
.section--primary span {
  color: var(--c-surface);
}

/* ─── Section header ───────────────────────────────────── */
.section-header {
  margin-bottom: var(--sp-12);
}
.section-header.centered {
  text-align: center;
}
.section-header h2 {
  margin-top: var(--sp-2);
}
.section-header p {
  margin-top: var(--sp-4);
  max-width: 560px;
}
.section-header.centered p {
  margin-left: auto;
  margin-right: auto;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: var(--c-primary-10);
  padding: .25rem .75rem;
  border-radius: var(--radius-full);
}
.section-eyebrow--accent {
  color: #b38200;
  background: #fff8e1;
}
.section-eyebrow--light {
  color: var(--c-accent);
  background: rgba(255,186,0,.15);
}

/* ─── Boutons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: .75rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.btn-primary:hover {
  background: var(--c-primary-hover);
  border-color: var(--c-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}
.btn-outline:hover {
  background: var(--c-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--c-primary);
  border-color: #fff;
}
.btn-white:hover {
  background: var(--c-primary-10);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: #fff;
  color: #fff;
}

/* ─── Animations au scroll ─────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: none;
}

.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }
.reveal-d4 { transition-delay: .4s; }
.reveal-d5 { transition-delay: .5s; }

/* ─── Accessibilité ────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  z-index: 9999;
  background: var(--c-primary);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top .2s ease;
}
.skip-link:focus {
  top: 0;
}

/* ─── Reduced motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .reveal-right {
    opacity: 1;
    transform: none;
  }
}

/* ─── Print ─────────────────────────────────────────────── */
@media print {
  .site-nav,
  .mobile-nav,
  .nav-backdrop,
  .scroll-top,
  .cta-block { display: none !important; }

  .reveal, .reveal-right {
    opacity: 1 !important;
    transform: none !important;
  }

  body { font-size: 12pt; color: #000; }
}

/* ─── Responsive global ────────────────────────────────── */
@media (max-width: 600px) {
  .section { padding: var(--sp-12) 0; }
}

/* ─── Utilitaires ──────────────────────────────────────── */
.text-center { text-align: center; }
.mt-4  { margin-top: var(--sp-4); }
.mt-6  { margin-top: var(--sp-6); }
.mt-8  { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }