/* Cuba Noche — ambiances saisonnières. Tout est scopé sous html.cn-amb--<thème>. */

html.cn-amb--halloween { --amb: 255, 122, 28; }
html.cn-amb--noel { --amb: 190, 215, 255; }
html.cn-amb--nouvel-an { --amb: 232, 192, 96; }
html.cn-amb--saint-valentin { --amb: 235, 70, 110; }

/* Boutons : halo coloré discret, même forme chromée */
.cn-amb .cn-btn.primary { box-shadow: 0 8px 30px rgba(var(--amb), .28); }
.cn-amb .cn-btn.primary:hover { box-shadow: 0 16px 46px rgba(var(--amb), .42); }
.cn-amb .pulse { animation-name: cnAmbPulse; }
@keyframes cnAmbPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--amb), .22); }
  50% { box-shadow: 0 0 34px 6px rgba(var(--amb), .24); }
}
.cn-amb .cn-hero__title { filter: drop-shadow(0 0 22px rgba(var(--amb), .26)); }
.cn-amb .cn-vband__t { filter: drop-shadow(0 0 18px rgba(var(--amb), .2)); }

/* Particules */
.cn-amb-canvas { position: fixed; inset: 0; z-index: 58; pointer-events: none; }

/* Lueur dans le hero et les bandeaux vidéo */
.cn-amb-glow, .cn-amb-fog, .cn-amb-moon { position: absolute; pointer-events: none; z-index: 1; }
.cn-amb-glow {
  inset: 0;
  background: radial-gradient(60% 45% at 50% 58%, rgba(var(--amb), .14), transparent 70%);
  animation: cnAmbGlow 6s ease-in-out infinite;
}
@keyframes cnAmbGlow { 0%, 100% { opacity: .65; } 50% { opacity: 1; } }

/* Halloween : brume, lune, toile d'araignée */
.cn-amb-fog {
  left: -50%; right: -50%; bottom: -5%; height: 48%;
  background:
    radial-gradient(38% 60% at 18% 100%, rgba(205, 205, 220, .11), transparent 70%),
    radial-gradient(32% 50% at 52% 100%, rgba(205, 205, 220, .08), transparent 70%),
    radial-gradient(44% 64% at 86% 100%, rgba(205, 205, 220, .11), transparent 70%);
  animation: cnAmbFog 38s ease-in-out infinite alternate;
}
.cn-amb-fog.b { height: 34%; opacity: .85; animation-duration: 56s; animation-direction: alternate-reverse; }
@keyframes cnAmbFog { from { transform: translateX(-12%); } to { transform: translateX(12%); } }

.cn-amb-moon {
  top: 13%; left: 7%;
  width: clamp(90px, 14vw, 210px); aspect-ratio: 1; border-radius: 50%;
  background:
    radial-gradient(circle at 36% 34%, rgba(255, 250, 238, .95) 0%, rgba(255, 226, 180, .75) 30%, rgba(255, 190, 120, .45) 48%, rgba(255, 150, 60, .12) 58%, transparent 70%);
  mix-blend-mode: screen;
  opacity: .42;
  animation: cnAmbMoon 9s ease-in-out infinite;
}
@keyframes cnAmbMoon { 0%, 100% { opacity: .38; } 50% { opacity: .5; } }
.cn-amb-web {
  position: absolute; top: 0; right: 0; z-index: 2; pointer-events: none;
  width: clamp(110px, 15vw, 200px); height: auto; opacity: .3;
}
.cn-amb-spider { animation: cnAmbSpider 9s ease-in-out infinite; }
@keyframes cnAmbSpider {
  0%, 100% { transform: translateY(40px); }
  45%, 55% { transform: translateY(122px); }
}
@media (max-width: 760px) {
  .cn-amb-moon { display: none; }
  .cn-amb-web { opacity: .22; }
}

/* Bandeau d'annonce */
.cn-amb-ban {
  position: fixed; left: 20px; bottom: 20px; z-index: 59;
  display: flex; align-items: center; gap: 12px;
  max-width: min(480px, calc(100vw - 40px));
  padding: 9px 9px 9px 16px; border-radius: 100px;
  background: rgba(10, 10, 14, .84);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid rgba(var(--amb), .45);
  box-shadow: 0 10px 40px rgba(0, 0, 0, .5), 0 0 26px rgba(var(--amb), .16);
  color: #f4f4f6; font-family: var(--sans, 'Jost', sans-serif); font-size: 13.5px; letter-spacing: .03em; line-height: 1.35;
  opacity: 0; transform: translateY(24px); transition: opacity .6s cubic-bezier(.2, .8, .2, 1), transform .6s cubic-bezier(.2, .8, .2, 1);
}
.cn-amb-ban.in { opacity: 1; transform: none; }
.cn-amb-ban svg { width: 20px; height: 20px; flex: 0 0 auto; color: rgb(var(--amb)); }
.cn-amb-ban__t { flex: 1 1 auto; }
.cn-amb-ban a {
  flex: 0 0 auto; text-decoration: none; white-space: nowrap; color: #fff;
  font-size: 11px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  padding: 9px 15px; border-radius: 100px;
  background: rgba(var(--amb), .16); border: 1px solid rgba(var(--amb), .55);
  transition: background .3s;
}
.cn-amb-ban a:hover { background: rgba(var(--amb), .3); }
.cn-amb-ban button {
  flex: 0 0 auto; background: none; border: 0; color: #9c9ca6; cursor: pointer;
  font-size: 22px; line-height: 1; padding: 0 6px;
}
.cn-amb-ban button:hover { color: #fff; }
@media (max-width: 600px) {
  .cn-amb-ban { left: 12px; right: 12px; bottom: 12px; max-width: none; border-radius: 18px; }
}

.cn-amb-prev {
  position: fixed; right: 14px; bottom: 14px; z-index: 9999;
  background: rgb(var(--amb)); color: #0a0a0c; border-radius: 100px; padding: 7px 14px;
  font: 600 11px/1.2 var(--sans, sans-serif); letter-spacing: .08em; text-transform: uppercase;
}
@media (max-width: 600px) { .cn-amb-prev { right: 12px; bottom: 84px; } }

@media (prefers-reduced-motion: reduce) {
  .cn-amb-glow, .cn-amb-fog, .cn-amb-spider, .cn-amb-moon { animation: none; }
}