/* ───────── Custom Properties ───────── */
:root {
  --primary: #D44812;
  --secondary: #F07A30;
  --accent: #C17843;
  --bg: #FFF9F0;
  --bg-card: #FFF4E8;
  --text: #5C4033;
  --text-light: #8B6F5E;
  --gradient: linear-gradient(135deg, #D44812, #F07A30);
  --gradient-soft: linear-gradient(135deg, #D4481218, #F07A3018);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  --size-display: clamp(2rem, 5vw, 3.2rem);
  --size-headline: clamp(1.25rem, 3vw, 1.5rem);
  --size-body: 1rem;
  --size-small: 0.875rem;
  --radius: 16px;
  --radius-sm: 10px;
  --max-w: 1120px;
  --section-pad: clamp(4rem, 10vw, 7rem);
}

/* ───────── Reset ───────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  font-size: var(--size-body);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Noise grain texture */
body::before {
  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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 0;
}

/* Mesh gradient layer */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 15% 10%, #D4481225 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 30%, #F07A3020 0%, transparent 55%),
    radial-gradient(ellipse 60% 45% at 50% 70%, #C1784318 0%, transparent 50%),
    radial-gradient(ellipse 80% 40% at 70% 95%, #D4481215 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ───────── Container ───────── */
.container { width: 90%; max-width: var(--max-w); margin: 0 auto; }

/* ───────── Nav Logo (partagé) ───────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1;
  text-decoration: none;
}
.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}
.nav-logo span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ───────── Bouton principal ───────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: #fff;
  font-weight: 600;
  font-size: var(--size-small);
  padding: 14px 28px;
  border-radius: 60px;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
  box-shadow: 0 4px 20px #D4481230;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 30px #D4481240;
}
.btn-primary:active { transform: translateY(0) scale(0.98); }

/* ───────── Animations d'apparition ───────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }

/* ───────── Accessibilité ───────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 8px 20px;
  border-radius: 0 0 8px 8px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 200;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; outline: 2px solid var(--primary); outline-offset: 2px; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}