/* Goulia — design system « Unified ».
 *
 * Composants visuels partagés entre pages. À inclure APRÈS theme.css.
 * Toutes les couleurs viennent de variables CSS (theme.css) → adapté
 * automatiquement au mode clair/sombre.
 *
 * Conventions :
 *   - Préfixe `gd-` pour éviter collision avec Tailwind/Lucide
 *   - Composants : .gd-eyebrow .gd-spectrum .gd-dot .gd-lang-badge
 *                  .gd-btn .gd-btn-ghost .gd-btn-glass .gd-card
 *                  .gd-divider .gd-flow-step .gd-stat
 *   - Effets ambient :
 *     <body data-goulia-ambient> active fond étoilé + gradients
 *     (les étoiles sont injectées par ambient.js — opt-in par page)
 */

/* ─── Keyframes ───────────────────────────────────────────────────────── */
@keyframes gd-pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes gd-drift {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(8px, -10px); }
}
@keyframes gd-shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
@keyframes gd-twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.9; }
}
@keyframes gd-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Ambient background (fond étoilé + gradients colorés) ─────────────
 * Activé par <body data-goulia-ambient>. Les étoiles sont des <div>
 * injectés par ambient.js (80 dots animés). Si JS désactivé : on a
 * juste les 3 gradients de fond, c'est dégradable proprement. */
body[data-goulia-ambient] {
  position: relative;
  background: var(--bg);
}
body[data-goulia-ambient]::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  /* Halos pilotés par --halo-opacity (dark=0.33, light=0.18).
   * Les 3 gradients (primary/pink/cyan) suivent automatiquement le thème. */
  background:
    radial-gradient(70% 50% at 80% 0%,
      color-mix(in srgb, var(--primary) calc(var(--halo-opacity) * 100%), transparent) 0%,
      transparent 60%),
    radial-gradient(50% 40% at 0% 60%,
      color-mix(in srgb, var(--pink) calc(var(--halo-opacity) * 80%), transparent) 0%,
      transparent 60%),
    radial-gradient(60% 50% at 100% 100%,
      color-mix(in srgb, var(--cyan) calc(var(--halo-opacity) * 80%), transparent) 0%,
      transparent 60%);
}
.gd-ambient-stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.gd-ambient-stars > i {
  position: absolute;
  display: block;
  border-radius: 50%;
  /* fallback statique — ambient.js réécrit en inline via var(--star-color) */
  background: var(--star-color, rgba(255, 255, 255, 0.5));
  opacity: 0.5;
  will-change: opacity;
}
/* Le contenu principal doit passer au-dessus de l'ambient */
body[data-goulia-ambient] > :not(.gd-ambient-stars) {
  position: relative;
  z-index: 1;
}

/* ─── Eyebrow pill ────────────────────────────────────────────────────── */
.gd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.gd-eyebrow--pink   { color: var(--pink);  border-color: color-mix(in srgb, var(--pink)  20%, transparent); }
.gd-eyebrow--cyan   { color: var(--cyan);  border-color: color-mix(in srgb, var(--cyan)  20%, transparent); }
.gd-eyebrow--lime   { color: var(--lime);  border-color: color-mix(in srgb, var(--lime)  20%, transparent); }
.gd-eyebrow--amber  { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 20%, transparent); }
.gd-eyebrow--danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 25%, transparent); }

/* ─── Pulse dot (status indicator) ───────────────────────────────────── */
.gd-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff4d6a;
  box-shadow: 0 0 0 4px rgba(255, 77, 106, 0.2);
  animation: gd-pulse-dot 1.4s ease-in-out infinite;
}
.gd-dot--accent  { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.gd-dot--cyan    { background: var(--cyan);   box-shadow: 0 0 0 4px color-mix(in srgb, var(--cyan) 25%, transparent); }
.gd-dot--pink    { background: var(--pink);   box-shadow: 0 0 0 4px color-mix(in srgb, var(--pink) 25%, transparent); }
.gd-dot--lime    { background: var(--lime);   box-shadow: 0 0 0 4px color-mix(in srgb, var(--lime) 25%, transparent); }
.gd-dot--success { background: var(--success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 25%, transparent); }

/* ─── Spectrum text (gradient animé pink→primary→cyan) ──────────────── */
.gd-spectrum {
  background: linear-gradient(110deg, var(--pink) 0%, var(--accent) 45%, var(--cyan) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  animation: gd-shimmer 8s linear infinite;
}
.gd-spectrum--cool {
  background: linear-gradient(110deg, var(--cyan) 0%, var(--accent) 45%, var(--pink) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  animation: gd-shimmer 8s linear infinite;
}
.gd-spectrum--warm {
  background: linear-gradient(110deg, var(--lime) 0%, var(--cyan) 45%, var(--accent) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  animation: gd-shimmer 8s linear infinite;
}

/* ─── Lang badge (rond coloré avec code ISO 2 lettres) ───────────────── */
.gd-lang-badge {
  --c: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 25%,
      rgba(255, 255, 255, 0.95),
      var(--c) 55%,
      color-mix(in srgb, var(--c) 70%, #000) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 8px 14px -4px color-mix(in srgb, var(--c) 60%, transparent);
  font-weight: 700;
  font-size: 13px;
  color: #fff;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
  flex-shrink: 0;
  position: relative;
}
.gd-lang-badge--lg { width: 48px; height: 48px; font-size: 15px; }
.gd-lang-badge--sm { width: 28px; height: 28px; font-size: 11px; }
.gd-lang-badge--pink   { --c: var(--pink); }
.gd-lang-badge--cyan   { --c: var(--cyan); }
.gd-lang-badge--lime   { --c: var(--lime); }
.gd-lang-badge--amber  { --c: var(--amber); }
.gd-lang-badge--accent { --c: var(--accent); }

/* Live indicator dot dans le coin du badge */
.gd-lang-badge--live::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff4d6a;
  border: 2px solid var(--bg-soft);
  animation: gd-pulse-dot 1.4s ease-in-out infinite;
}

/* ─── Buttons ─────────────────────────────────────────────────────────── */
.gd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 14px;
  border: 0;
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--accent) 80%, white) 0%,
    var(--accent) 100%);
  color: #fff;
  font-family: inherit;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 16px 34px -10px color-mix(in srgb, var(--accent) 75%, transparent);
  transition: transform 150ms ease, box-shadow 150ms ease, filter 150ms ease;
}
.gd-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}
.gd-btn:active {
  transform: translateY(0);
}
.gd-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.gd-btn--sm { padding: 10px 18px; font-size: 14px; border-radius: 10px; }

.gd-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: background-color 150ms ease, border-color 150ms ease, transform 150ms ease;
}
.gd-btn-ghost:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
}
.gd-btn-ghost:active {
  transform: scale(0.98);
}
.gd-btn-ghost--sm { padding: 10px 18px; font-size: 14px; border-radius: 10px; }

/* ─── Card glass (panel frosté) ──────────────────────────────────────── */
.gd-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  padding: 24px;
}
.gd-card--lg { padding: 32px; border-radius: 24px; }
.gd-card--sm { padding: 16px; border-radius: 14px; }

/* ─── Divider ─────────────────────────────────────────────────────────── */
.gd-divider {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ─── Flow step (item numéroté avec dot coloré) ─────────────────────── */
.gd-flow-step {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.gd-flow-step__n {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 2px;
}
.gd-flow-step__bullet {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent), 0 0 0 4px var(--accent-soft);
  margin-top: 6px;
}
.gd-flow-step__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.gd-flow-step__body {
  font-size: 14px;
  color: var(--text-soft, var(--muted));
  margin-top: 3px;
  line-height: 1.45;
}

/* ─── Stat (chiffre + label uppercase) ──────────────────────────────── */
.gd-stat__value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(110deg, var(--pink), var(--cyan));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.gd-stat__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted, var(--muted-2));
  margin-top: 4px;
}

/* ─── Reduced motion : coupe toutes les animations décoratives ───────── */
@media (prefers-reduced-motion: reduce) {
  .gd-spectrum,
  .gd-spectrum--cool,
  .gd-spectrum--warm,
  .gd-dot,
  .gd-lang-badge--live::after,
  .gd-ambient-stars > i {
    animation: none !important;
  }
}
