/* =========================================================
   MELODIA STUDIO — DESIGN SYSTEM
   Sombre cinématique · Glassmorphisme · Typo contrastée
   ========================================================= */

:root {
  /* ---- Colors */
  --bg:           #08080C;
  --bg-2:         #0E0E14;
  --fg:           #F5F5F7;
  --fg-dim:       #A8A8B3;
  --fg-low:       #65656F;
  --accent:       #1E90FF;          /* bleu néon (couleur signature du studio) */
  --accent-2:     #6FB8FF;          /* hover/highlight */
  --accent-glow:  rgba(30, 144, 255, 0.35);
  --danger:       #FF4D5E;

  /* ---- Glass */
  --glass-bg:     rgba(255, 255, 255, 0.035);
  --glass-bg-2:   rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur:   24px;

  /* ---- Type */
  --font-display: "Anton", "Bebas Neue", "Impact", sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  /* ---- Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* ---- Radii */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
  --r-full: 999px;

  /* ---- Container */
  --container: 1320px;
  --pad-x: clamp(20px, 4vw, 56px);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  overflow-x: hidden;
  position: relative;
}

/* =========================================================
   AMBIANT LAYERS (grain, glow)
   ========================================================= */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.glow {
  position: fixed;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}
.glow--blue {
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  top: -20vw;
  right: -10vw;
}
.glow--cyan {
  background: radial-gradient(circle, rgba(60, 220, 255, 0.18), transparent 60%);
  bottom: -25vw;
  left: -15vw;
}

/* =========================================================
   TYPOGRAPHY
   ========================================================= */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(64px, 11vw, 180px);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.h-display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.display--accent {
  color: var(--accent);
  font-style: italic;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent-glow);
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* =========================================================
   GLASS PRIMITIVE
   ========================================================= */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border-radius: var(--r-lg);
  position: relative;
}
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.16), transparent 40%, transparent 60%, rgba(255,255,255,0.06));
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px 22px;
  border-radius: var(--r-full);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
  cursor: pointer;
}
.btn--lg {
  padding: 16px 28px;
  font-size: 15px;
}
.btn--primary {
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
}
.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--fg);
  box-shadow: 0 0 0 6px var(--accent-glow);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn--ghost:hover {
  background: var(--glass-bg-2);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-1px);
}

/* =========================================================
   LOGO
   ========================================================= */
.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-body);
  font-weight: 600;
  transition: opacity 0.2s ease;
}
.nav__logo:hover { opacity: 0.85; }
.nav__logo img {
  height: 96px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 16px rgba(30,144,255,0.25));
  /* overflow the nav pill — keeps the header compact while logo stays large */
}
.footer .nav__logo img { height: 120px; }
@media (max-width: 880px) {
  .nav { height: 52px; }
  .nav__logo img { height: 64px; }
  .footer .nav__logo img { height: 88px; }
}

/* =========================================================
   UTILITIES
   ========================================================= */
.section-header {
  max-width: 820px;
  margin: 0 auto var(--space-9);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}
.section-sub {
  color: var(--fg-dim);
  font-size: 17px;
  max-width: 640px;
}

@media (max-width: 720px) {
  .section-header { margin-bottom: var(--space-7); }
}

/* =========================================================
   PROMOTIONS (bannière home + prix barrés) — cf. js/promo.js
   ========================================================= */
.promo-banner {
  display: flex; align-items: center; gap: var(--space-4);
  margin-top: var(--space-6); padding: 14px 16px;
  border-radius: var(--r-lg); text-decoration: none; color: var(--fg);
  background: linear-gradient(120deg, rgba(255,77,94,0.14), rgba(30,144,255,0.10));
  border: 1px solid rgba(255,77,94,0.35);
  position: relative; overflow: hidden; max-width: 560px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.promo-banner:hover { transform: translateY(-2px); border-color: rgba(255,77,94,0.6); box-shadow: 0 12px 40px rgba(255,77,94,0.18); }
.promo-banner__badge {
  flex-shrink: 0; font-family: var(--font-display); font-size: 24px; line-height: 1;
  background: var(--danger); color: #fff; border-radius: var(--r-md);
  padding: 12px 12px; box-shadow: 0 0 24px rgba(255,77,94,0.5);
}
.promo-banner__body { display: flex; flex-direction: column; gap: 3px; flex: 1; min-width: 0; }
.promo-banner__eyebrow { font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--danger); }
.promo-banner__headline { font-family: var(--font-display); font-size: 21px; text-transform: uppercase; line-height: 1; }
.promo-banner__sub { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); letter-spacing: .04em; }
.promo-banner__sub s { color: var(--fg-low); }
.promo-banner__cta { flex-shrink: 0; display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px; color: var(--accent); white-space: nowrap; }
@media (max-width: 520px) {
  .promo-banner { flex-wrap: wrap; }
  .promo-banner__cta { width: 100%; justify-content: center; margin-top: 4px; padding-top: 10px; border-top: 1px solid var(--glass-border); }
}
/* prix promo (barré + nouveau + tag), utilisable partout */
.promo-old { color: var(--fg-low); text-decoration: line-through; opacity: .7; margin-right: 5px; }
.promo-new { color: var(--accent); font-weight: 700; }
.promo-tag { font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; background: var(--danger); color: #fff; padding: 2px 6px; border-radius: var(--r-full); vertical-align: middle; margin-left: 4px; }
.price-option.is-promo { border-color: rgba(255,77,94,0.40); }