/* ================================================
   SKINWRAPS - Design System Premium
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;0,9..144,800;1,9..144,400&family=Inter+Tight:wght@300;400;500;600;700&display=swap');

:root {
  /* Couleurs */
  --bg-primary: #0a0a0c;
  --bg-secondary: #111114;
  --bg-tertiary: #1a1a1f;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.05);

  --text-primary: #f5f5f7;
  --text-secondary: #a8a8b0;
  --text-tertiary: #6e6e76;

  --accent: #a8138c;
  --accent-light: #c2199f;
  --accent-glow: rgba(168, 19, 140, 0.4);

  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);

  /* Typographie */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espacements */
  --section-padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 5vw, 4rem);
  --container-max: 1400px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  width: 100%;
  max-width: 100vw;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ================================================
   NAVIGATION
   ================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem clamp(1.5rem, 5vw, 4rem);
  background: rgba(10, 10, 12, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s var(--ease);
}

.nav.scrolled {
  padding: 0.85rem clamp(1.5rem, 5vw, 4rem);
  background: rgba(10, 10, 12, 0.95);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-logo img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s var(--ease);
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 100px;
  transition: all 0.3s var(--ease);
  box-shadow: 0 0 0 0 var(--accent-glow);
}

.nav-cta:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 12, 0.98);
    backdrop-filter: blur(20px);
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.4s var(--ease);
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-toggle {
    display: block;
  }
  .nav-cta {
    display: none;
  }
}

/* ================================================
   BOUTONS
   ================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 1.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 0 0 0 var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--accent-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  padding: 0.5rem 0;
  border-radius: 0;
}

.btn-ghost:hover {
  color: var(--accent-light);
}

.btn .arrow {
  transition: transform 0.3s var(--ease);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

/* ================================================
   TYPOGRAPHIE
   ================================================ */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.h-display {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.h-display em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent-light);
}

.h-section {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.h-section em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent-light);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 60ch;
}

/* ================================================
   SECTIONS GENERIQUES
   ================================================ */

.section {
  padding: var(--section-padding);
  position: relative;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
}

.section-header {
  max-width: 720px;
  margin-bottom: 4rem;
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ================================================
   FOOTER
   ================================================ */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 5rem clamp(1.5rem, 5vw, 4rem) 2rem;
}

.footer-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-brand img {
  width: 56px;
  height: 56px;
  border-radius: 10px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

@media (max-width: 800px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .footer-brand {
    grid-column: span 2;
  }
}

/* ================================================
   FAB BOUTONS FLOTTANTS
   ================================================ */

.fab-group {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 90;
}

.fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.fab-whatsapp {
  background: #25d366;
  color: white;
}

.fab-call {
  background: var(--accent);
  color: white;
}

.fab:hover {
  transform: translateY(-3px) scale(1.05);
}

.fab svg {
  width: 26px;
  height: 26px;
}

/* ================================================
   ANIMATIONS
   ================================================ */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s 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; }

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 30px var(--accent-glow); }
  50% { box-shadow: 0 0 60px var(--accent-glow); }
}

/* ================================================
   GRAIN OVERLAY
   ================================================ */

.grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.04;
  z-index: 1;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}