/* ============================================================
   BASE — Reset · Typographie · Utilitaires globaux
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: none; border: none; background: none; }
input, textarea, select { font: inherit; }

/* ── Typographic scale ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--black);
}

h1 { font-size: clamp(3rem, 7vw, 6rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h4 { font-size: 1.25rem; }

p { font-size: 1rem; line-height: 1.75; color: var(--black-soft); }

.label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--grey-mid);
}

/* ── Layout container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s4);
}

.container--narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--s4);
}

/* ── Section spacing ── */
.section {
  padding: var(--s7) 0;
}

.section--sm {
  padding: var(--s5) 0;
}

/* ── Divider ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--cream-deep);
}

/* ── Rust accent line ── */
.accent-line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--rust);
  margin-bottom: var(--s3);
}

/* ── Custom cursor ── */
.cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--rust);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width var(--dur-mid) var(--ease),
              height var(--dur-mid) var(--ease),
              background var(--dur-mid) var(--ease);
  will-change: transform;
}

.cursor-ring {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(216, 90, 48, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s var(--ease),
              width var(--dur-mid) var(--ease),
              height var(--dur-mid) var(--ease),
              opacity var(--dur-mid) var(--ease);
  will-change: transform;
}

.cursor.hover { width: 14px; height: 14px; background: var(--black); }
.cursor-ring.hover { width: 48px; height: 48px; opacity: 0.3; }

/* ── Boutons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s1);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: all var(--dur-mid) var(--ease);
}

.btn--rust {
  background: var(--rust);
  color: var(--white);
  border: 1px solid var(--rust);
}
.btn--rust:hover {
  background: var(--rust-dark);
  border-color: var(--rust-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--black);
}
.btn--outline:hover {
  background: var(--black);
  color: var(--cream);
}

.btn--ghost {
  background: transparent;
  color: var(--rust);
  border: 1px solid var(--rust);
  padding: 12px 24px;
}
.btn--ghost:hover {
  background: var(--rust);
  color: var(--white);
}

/* ── Tag / badge ── */
.tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  background: var(--rust-pale);
  color: var(--rust-dark);
  border: 1px solid rgba(216, 90, 48, 0.2);
}

/* ── Scroll reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ── Page transition overlay ── */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 10000;
  transform: translateY(100%);
  transition: transform 0.4s var(--ease);
  pointer-events: none;
}
.page-transition.active { transform: translateY(0); }

/* ── Noise texture overlay (subtile, éditoriale) ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9997;
  opacity: 0.4;
}

/* ── Responsive helpers ── */
@media (max-width: 768px) {
  .container { padding: 0 var(--s3); }
  .section { padding: var(--s5) 0; }
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
}