.celebration-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(1.25rem, env(safe-area-inset-top)) max(1.25rem, env(safe-area-inset-right))
    max(1.25rem, env(safe-area-inset-bottom)) max(1.25rem, env(safe-area-inset-left));
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.celebration-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.celebration-overlay.is-leaving {
  opacity: 0;
  pointer-events: none;
}

.celebration-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.celebration-card {
  position: relative;
  z-index: 2;
  width: min(92vw, 380px);
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: 24px;
  text-align: center;
  background: rgba(12, 16, 24, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow:
    0 0 0 1px rgba(45, 212, 191, 0.08),
    0 24px 80px rgba(0, 0, 0, 0.55),
    0 0 120px rgba(167, 139, 250, 0.12);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transform: scale(0.82) translateY(12px);
  opacity: 0;
}

.celebration-overlay.is-visible .celebration-card {
  animation: celebration-card-in 0.55s cubic-bezier(0.34, 1.4, 0.64, 1) 0.08s forwards;
}

.celebration-overlay.is-leaving .celebration-card {
  animation: celebration-card-out 0.3s ease forwards;
}

@keyframes celebration-card-in {
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

@keyframes celebration-card-out {
  to {
    transform: scale(0.94) translateY(8px);
    opacity: 0;
  }
}

.celebration-emoji {
  display: block;
  font-size: 2.75rem;
  line-height: 1;
  margin-bottom: 0.65rem;
  animation: celebration-emoji-pop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}

@keyframes celebration-emoji-pop {
  from {
    transform: scale(0.2) rotate(-12deg);
    opacity: 0;
  }
  to {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}

.celebration-badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #2dd4bf;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.28);
}

.celebration-title {
  margin: 0 0 0.5rem;
  font-family: "Sora", system-ui, sans-serif;
  font-size: clamp(1.65rem, 5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #f8fafc;
  line-height: 1.15;
}

.celebration-subtitle {
  margin: 0 0 0.85rem;
  font-size: 0.9375rem;
  line-height: 1.45;
  color: #94a3b8;
}

.celebration-stat {
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  background: rgba(45, 212, 191, 0.08);
  border: 1px solid rgba(45, 212, 191, 0.18);
}

.celebration-stat-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 0.25rem;
}

.celebration-stat-value {
  display: block;
  font-family: "Sora", system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: #2dd4bf;
  font-variant-numeric: tabular-nums;
}

.celebration-dismiss {
  width: 100%;
  min-height: 2.75rem;
  border: none;
  border-radius: 12px;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #06080d;
  background: linear-gradient(135deg, #2dd4bf 0%, #5eead4 100%);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.celebration-dismiss:active {
  transform: scale(0.98);
}

.celebration-hint {
  margin: 0.65rem 0 0;
  font-size: 0.75rem;
  color: #64748b;
}

.hidden {
  display: none !important;
}

/* Teinte carte selon palier */
.celebration-overlay[data-milestone="week"] .celebration-card {
  box-shadow: 0 0 0 1px rgba(45, 212, 191, 0.12), 0 24px 80px rgba(0, 0, 0, 0.55), 0 0 80px rgba(45, 212, 191, 0.1);
}

.celebration-overlay[data-milestone="month"] .celebration-card {
  box-shadow: 0 0 0 1px rgba(96, 165, 250, 0.12), 0 24px 80px rgba(0, 0, 0, 0.55), 0 0 90px rgba(96, 165, 250, 0.12);
}

.celebration-overlay[data-milestone="quarter"] .celebration-badge {
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.3);
}

.celebration-overlay[data-milestone="quarter"] .celebration-card {
  box-shadow: 0 0 0 1px rgba(251, 191, 36, 0.14), 0 24px 80px rgba(0, 0, 0, 0.55), 0 0 100px rgba(251, 191, 36, 0.1);
}

.celebration-overlay[data-milestone="half"] .celebration-badge {
  color: #a78bfa;
  background: rgba(167, 139, 250, 0.14);
  border-color: rgba(167, 139, 250, 0.32);
}

.celebration-overlay[data-milestone="half"] .celebration-card {
  box-shadow: 0 0 0 1px rgba(167, 139, 250, 0.16), 0 28px 90px rgba(0, 0, 0, 0.58), 0 0 120px rgba(129, 140, 248, 0.14);
}

.celebration-overlay[data-milestone="year"] .celebration-badge {
  color: #fcd34d;
  background: rgba(252, 211, 77, 0.14);
  border-color: rgba(252, 211, 77, 0.35);
}

.celebration-overlay[data-milestone="year"] .celebration-title {
  background: linear-gradient(135deg, #fde68a 0%, #2dd4bf 50%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.celebration-overlay[data-milestone="year"] .celebration-card {
  box-shadow:
    0 0 0 1px rgba(252, 211, 77, 0.2),
    0 32px 100px rgba(0, 0, 0, 0.62),
    0 0 140px rgba(251, 191, 36, 0.16);
}

@media (prefers-reduced-motion: reduce) {
  .celebration-overlay.is-visible .celebration-card,
  .celebration-emoji {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .celebration-canvas {
    display: none;
  }
}