/**
 * Liquid Glass Components - Verre Neutre Ultra-Transparent & Bordures Découpées
 * Conforme aux spécifications :
 * 1. Structure : Coins très arrondis (26px).
 * 2. Transparence : Verre neutre (rgba(255,255,255, 0.04-0.08)), zéro teinte artificielle,
 *    la couleur provient exclusivement du fond du site.
 * 3. Bordure : Filet discret 1px semi-transparent clair (rgba(255,255,255, 0.18)).
 * 4. Badge/Onglet : Fond neutre légèrement plus dense avec terme principal gras blanc
 *    et sous-terme atténué (60-70%).
 */

/* 1. Base Glass Panel (Fallback haute qualité) */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), var(--glass-specular);
  border-radius: var(--radius-card);
  position: relative;
  transition: border-color var(--duration-normal) var(--ease-smooth),
    box-shadow var(--duration-normal) var(--ease-smooth),
    background var(--duration-normal) var(--ease-smooth),
    transform var(--duration-normal) var(--ease-spring);
}

.glass-card {
  background: var(--glass-bg-subtle);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), var(--glass-specular);
  border-radius: var(--radius-card);
  padding: clamp(1.5rem, 4vw, 2.25rem);
  position: relative;
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-spring),
    border-color var(--duration-normal) var(--ease-smooth),
    box-shadow var(--duration-normal) var(--ease-smooth),
    background var(--duration-normal) var(--ease-smooth);
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: var(--glass-shadow-lg), inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
}

@media (hover: hover) and (pointer: fine) {
  .glass-card:hover {
    transform: translateY(-2px);
  }
}

/* 2. Verre Neutre Ultra-Transparent via @supports */
@supports (backdrop-filter: blur(16px)) or (-webkit-backdrop-filter: blur(16px)) {
  .glass-panel {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 14px 34px -4px rgba(0, 0, 0, 0.45),
      inset 0 1px 0 rgba(255, 255, 255, 0.22);
  }

  .glass-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 14px 34px -4px rgba(0, 0, 0, 0.45),
      inset 0 1px 0 rgba(255, 255, 255, 0.22);
  }

  .glass-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.28);
    box-shadow: 0 20px 42px -8px rgba(0, 0, 0, 0.55),
      inset 0 1px 0 rgba(255, 255, 255, 0.3);
  }
}

/* 3. Badge / Onglet de Carte (Tab Header) */
.card-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  background: var(--glass-tab-bg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: fit-content;
}

.tab-label {
  font-weight: 700;
  color: #ffffff;
  font-size: var(--text-xs);
  letter-spacing: -0.01em;
}

.tab-sublabel {
  font-weight: 400;
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--text-xs);
  letter-spacing: 0.01em;
}

/* Glass Pill / Badge Global */
.glass-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  min-height: 34px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #ffffff;
}

/* 4. Bouton d'Action (CTA) Transparent */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  max-width: 380px;
  min-height: var(--touch-target-min);
  padding: clamp(0.75rem, 1.4vh, 0.95rem) clamp(1.4rem, 3.5vw, 1.85rem);
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  transition: all var(--duration-normal) var(--ease-spring);
}

/* CTA : État Verrouillé (Verre Neutre Ultra-Transparent) */
.cta-button.is-locked {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 14px 34px -4px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  cursor: not-allowed;
  user-select: none;
}

.cta-button.is-locked .cta-lock-icon {
  color: #ffffff;
  opacity: 0.85;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.cta-button.is-locked:hover .cta-lock-icon {
  transform: scale(1.08);
}

/* CTA : État Déverrouillé */
.cta-button.is-available {
  background: linear-gradient(135deg,
      rgba(0, 175, 181, 0.85) 0%,
      rgba(0, 71, 119, 0.9) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 32px rgba(0, 175, 181, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  cursor: pointer;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

@media (hover: hover) and (pointer: fine) {
  .cta-button.is-available:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 42px rgba(0, 175, 181, 0.7),
      inset 0 1px 0 rgba(255, 255, 255, 0.8);
    filter: brightness(1.08);
  }
}

.cta-button.is-available:active {
  transform: translateY(0);
}

/* Animation d'impulsion lumineuse lors de la révélation */
.cta-button.just-revealed {
  animation: revealPulse 0.9s var(--ease-spring);
}

@keyframes revealPulse {
  0% {
    transform: scale(0.96);
    box-shadow: 0 0 0 rgba(0, 175, 181, 0);
  }

  50% {
    transform: scale(1.04);
    box-shadow: 0 0 45px rgba(0, 175, 181, 0.8);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 32px rgba(0, 175, 181, 0.5);
  }
}

/* Accessibilité Clavier */
.cta-button:focus-visible,
.glass-card:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent-teal);
  outline-offset: 3px;
}

/* Respect de prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {

  .glass-panel,
  .glass-card,
  .cta-button,
  .cta-button.is-locked .cta-lock-icon,
  .glass-pill {
    transition: none !important;
    transform: none !important;
    animation: none !important;
  }
}