/* =========================================================================
   Matière « Liquid Glass » : arrière-plan vivant, panneaux translucides, sphères
   Le flou se règle avec --blur (tokens.css).
   ========================================================================= */

/* --- Arrière-plan : grandes formes floues aux couleurs Tempo --- */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% -10%, var(--bg-elevated) 0%, transparent 60%),
    var(--bg);
}
.backdrop .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(56px);
  will-change: transform;
  animation: drift 28s var(--ease) infinite alternate;
}
.backdrop .blob-blue {
  width: max(440px, 54vmax); height: max(440px, 54vmax);
  left: min(-190px, -18vmax); top: min(-150px, -20vmax);
  background: var(--blob-blue);
}
.backdrop .blob-pearl {
  width: max(340px, 40vmax); height: max(340px, 40vmax);
  right: min(-170px, -12vmax); top: 30vh;
  background: var(--blob-pearl);
  animation-duration: 34s;
  animation-delay: -8s;
}
.backdrop .blob-red {
  width: max(380px, 44vmax); height: max(380px, 44vmax);
  right: min(-120px, -8vmax); bottom: min(-150px, -26vmax);
  background: var(--blob-red);
  animation-duration: 31s;
  animation-delay: -15s;
}
@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(4vmax, 3vmax, 0) scale(1.08); }
  100% { transform: translate3d(-3vmax, 5vmax, 0) scale(0.96); }
}

/* --- Panneau de verre --- */
.glass {
  position: relative;
  isolation: isolate;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2), var(--inner-light);
}
/* Reflet spéculaire en haut du panneau */
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--glass-highlight);
  pointer-events: none;
}
/* Liseré lumineux en diagonale */
.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--glass-rim);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
/* Voile renforcé : contraste AA garanti sous le texte dense */
.glass-strong { background: var(--glass-bg-strong); }
.glass-subtle { background: var(--glass-bg-subtle); box-shadow: var(--shadow-1), var(--inner-light); }

/* --- Sphères de couleur Tempo --- */
.orb {
  position: relative;
  display: inline-block;
  flex: none;
  width: var(--orb-size, 20px);
  height: var(--orb-size, 20px);
  border-radius: 50%;
  vertical-align: middle;
}
.orb-blue { background: var(--orb-blue); box-shadow: var(--orb-blue-shadow); }
.orb-white { background: var(--orb-white); box-shadow: var(--orb-white-shadow); }
.orb-red { background: var(--orb-red); box-shadow: var(--orb-red-shadow); }
/* Couleur encore inconnue : anneau pointillé */
.orb-unknown { border: 2px dashed var(--tempo-white-edge); }
/* Reflet des grandes sphères */
.orb-shine::after {
  content: "";
  position: absolute;
  left: 18%;
  top: 10%;
  width: 46%;
  height: 30%;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0));
  filter: blur(1px);
}
.orb-xl { --orb-size: 92px; }
.orb-lg { --orb-size: 64px; }
.orb-md { --orb-size: 30px; }
.orb-sm { --orb-size: 12px; }
.orb-xs { --orb-size: 8px; }

/* Avatar présenté comme une sphère : photo ou avatar fourni + reflet */
.avatar-orb {
  position: relative;
  display: inline-grid;
  place-items: center;
  flex: none;
  width: var(--orb-size, 40px);
  height: var(--orb-size, 40px);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: inset 0 -6px 14px rgba(5, 15, 60, 0.25), 0 0 0 2px var(--glass-border), var(--shadow-1);
}
.avatar-orb img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.avatar-orb::after {
  content: "";
  position: absolute;
  left: 18%;
  top: 8%;
  width: 46%;
  height: 28%;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0));
  pointer-events: none;
}

/* --- Replis : pas de backdrop-filter, transparence réduite --- */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass, .glass-strong, .glass-subtle { background: var(--glass-opaque); }
}
@media (prefers-reduced-transparency: reduce) {
  .glass, .glass-strong, .glass-subtle {
    background: var(--glass-opaque);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .glass::before, .glass::after { display: none; }
  .backdrop .blob { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .backdrop .blob { animation: none; }
}
.orb-unknown.orb-shine::after { display: none; }