/* ==========================================================================
   DESIGN SYSTEM — Direction "Sombre & Or" (Premium)
   Variables, reset, layout, composants. Modifier les couleurs ici suffit
   à recolorer tout le site.
   ========================================================================== */

:root {
  /* Couleurs */
  --color-dark: #0e0e10;
  --color-dark-alt: #17171a;
  --color-light: #ffffff;
  --color-light-alt: #f7f6f3;
  --color-gold: #d4af37;
  --color-gold-hover: #e8c766;
  --color-text-on-dark: #f2f0ea;
  --color-text-on-dark-muted: #a8a6a1;
  --color-text-on-light: #17171a;
  --color-text-on-light-muted: #5c5b58;
  --color-border-dark: rgba(255, 255, 255, 0.1);
  --color-border-light: rgba(0, 0, 0, 0.08);
  --color-success: #4caf7d;

  /* Typographie */
  --font-heading: "Sora", sans-serif;
  --font-body: "Work Sans", sans-serif;

  /* Échelle d'espacement */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Layout */
  --container-width: 1160px;
  --radius: 10px;
  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, picture, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; }

body {
  font-family: var(--font-body);
  color: var(--color-text-on-light);
  background: var(--color-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.3rem; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section { padding: var(--space-2xl) 0; }
.section--dark {
  background: var(--color-dark);
  color: var(--color-text-on-dark);
}
.section--dark h2, .section--dark h3 { color: var(--color-text-on-dark); }
.section--dark p { color: var(--color-text-on-dark-muted); }
.section--alt { background: var(--color-light-alt); }

.section-header {
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}
.section-header p {
  color: var(--color-text-on-light-muted);
  margin-top: var(--space-xs);
}
.section--dark .section-header p { color: var(--color-text-on-dark-muted); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: var(--color-gold);
  color: #17171a;
}
.btn--primary:hover { background: var(--color-gold-hover); box-shadow: 0 8px 24px rgba(212, 175, 55, 0.35); }
.btn--outline {
  background: transparent;
  border: 1.5px solid var(--color-border-dark);
  color: var(--color-text-on-dark);
}
.section:not(.section--dark) .btn--outline {
  border-color: var(--color-border-light);
  color: var(--color-text-on-light);
}
.btn--outline:hover { border-color: var(--color-gold); color: var(--color-gold); }
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.85rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(14, 14, 16, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-dark);
  transition: background var(--transition);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text-on-dark);
}
.logo span { color: var(--color-gold); }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.nav-list a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  transition: color var(--transition);
}
.nav-list a:hover,
.nav-list a.is-active { color: var(--color-gold); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-on-dark);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  padding: calc(72px + var(--space-2xl)) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-border-dark);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}
.hero h1 { margin-bottom: var(--space-md); }
.hero h1 .highlight { color: var(--color-gold); }
.hero-lead {
  font-size: 1.1rem;
  color: var(--color-text-on-dark-muted);
  max-width: 520px;
  margin-bottom: var(--space-lg);
}
.hero-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}
.hero-stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-gold);
}
.hero-stat span {
  font-size: 0.85rem;
  color: var(--color-text-on-dark-muted);
}

.hero-visual {
  background: var(--color-dark-alt);
  border: 1px solid var(--color-border-dark);
  border-radius: 16px;
  padding: var(--space-lg);
  position: relative;
}
.hero-visual-card {
  background: var(--color-dark);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
}
.hero-visual-card:last-child { margin-bottom: 0; }
.hero-visual-card h4 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.hero-visual-card p { font-size: 0.85rem; color: var(--color-text-on-dark-muted); }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}
.service-card {
  background: var(--color-light);
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: var(--space-lg);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--color-gold);
}
.service-card.is-coming-soon { opacity: 0.6; }
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(212, 175, 55, 0.12);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}
.service-card h3 { margin-bottom: 0.5rem; }
.service-card p { color: var(--color-text-on-light-muted); margin-bottom: var(--space-sm); }
.service-list { margin-bottom: var(--space-md); }
.service-list li {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-on-light-muted);
  padding: 0.25rem 0;
}
.service-list li::before { content: "✓"; color: var(--color-gold); font-weight: 700; }
.service-price {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}
.service-price strong { font-family: var(--font-heading); color: var(--color-text-on-light); }
.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.12);
  color: #a8842a;
}
.badge--soon { background: rgba(0,0,0,0.06); color: var(--color-text-on-light-muted); }

/* ---------- Portfolio ---------- */
.filter-bar {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-xl);
}
.filter-btn {
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-light);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-on-light-muted);
  transition: all var(--transition);
}
.section--dark .filter-btn { border-color: var(--color-border-dark); color: var(--color-text-on-dark-muted); }
.filter-btn:hover { border-color: var(--color-gold); color: var(--color-gold); }
.filter-btn.is-active {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: #17171a;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}
.portfolio-card {
  background: var(--color-light);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition), box-shadow var(--transition);
}
.section--dark .portfolio-card { background: var(--color-dark-alt); border-color: var(--color-border-dark); }
.portfolio-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px rgba(0,0,0,0.12); }
.portfolio-thumb {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-light-alt);
}
.portfolio-thumb img { width: 100%; height: 100%; object-fit: cover; }
.portfolio-body { padding: var(--space-md); }
.portfolio-body h3 { margin-bottom: 0.4rem; }
.portfolio-body p { color: var(--color-text-on-light-muted); font-size: 0.92rem; margin-bottom: var(--space-sm); }
.section--dark .portfolio-body p { color: var(--color-text-on-dark-muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: var(--space-sm); }
.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: rgba(212, 175, 55, 0.1);
  color: #a8842a;
}
.section--dark .tag { color: var(--color-gold); }
.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gold);
}
.portfolio-link:hover { color: var(--color-gold-hover); }
.portfolio-link--disabled {
  color: var(--color-text-on-light-muted);
  cursor: default;
}

/* ---------- Témoignages ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}
.testimonial-card {
  background: var(--color-dark-alt);
  border: 1px solid var(--color-border-dark);
  border-radius: 14px;
  padding: var(--space-lg);
}
.stars { color: var(--color-gold); font-size: 0.95rem; margin-bottom: var(--space-sm); letter-spacing: 2px; }
.testimonial-text {
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
}
.testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-gold);
  color: #17171a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-author strong { display: block; font-size: 0.9rem; }
.testimonial-author span { font-size: 0.8rem; color: var(--color-text-on-dark-muted); }
.platform-badge {
  margin-left: auto;
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: rgba(255,255,255,0.06);
  color: var(--color-text-on-dark-muted);
}

/* ---------- À propos ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-xl);
  align-items: center;
}
.about-photo {
  aspect-ratio: 4/5;
  border-radius: 16px;
  background: var(--color-light-alt);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-content p { color: var(--color-text-on-light-muted); margin-bottom: var(--space-sm); }
.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-md);
}
.about-skills .tag { background: rgba(0,0,0,0.05); color: var(--color-text-on-light); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
}
.contact-info p { color: var(--color-text-on-light-muted); margin-bottom: var(--space-lg); }
.contact-links { display: flex; flex-direction: column; gap: var(--space-sm); }
.contact-links a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  color: var(--color-text-on-light);
  transition: color var(--transition);
}
.contact-links a:hover { color: var(--color-gold); }
.contact-links .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--color-light-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.form-group { margin-bottom: var(--space-sm); }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--color-border-light);
  background: var(--color-light-alt);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
.form-status {
  margin-top: var(--space-sm);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-success { background: rgba(76, 175, 125, 0.12); color: #2f8a5f; }
.form-status.is-error { background: rgba(211, 47, 47, 0.1); color: #c62828; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: var(--color-text-on-dark-muted);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-dark);
}
.footer-grid h4 {
  color: var(--color-text-on-dark);
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
}
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { transition: color var(--transition); }
.footer-links a:hover { color: var(--color-gold); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.social-links { display: flex; gap: var(--space-sm); }
.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.social-links a:hover { background: var(--color-gold); border-color: var(--color-gold); color: #17171a; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-gold);
  color: #17171a;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 900;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-list {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-dark);
    border-bottom: 1px solid var(--color-border-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md);
    gap: var(--space-md);
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }
  .nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
}