/* ==========================================================================
   Surcouche Halloween — Alliance Télécom
   Activation : ajouter la classe "halloween" sur <html> (fait par halloween.js).
   Toutes les URLs d'images sont relatives à ce fichier : gardez le dossier intact.
   Exclure un bouton de la lueur : ajouter la classe "hw-no-glow".
   Forcer la lueur sur un élément : ajouter la classe "hw-glow".
   ========================================================================== */

:root.halloween,
:root.theme-halloween {
  --hw-pumpkin: #ff7a1a;
  --hw-ember: #ff3d00;
  --hw-witch: #1a1208;
  --hw-ghost: #f5f3ff;
  --hw-watermark: rgb(255 140 60 / 0.22);
  --hw-watermark-strong: rgb(255 180 100 / 0.38);
  --hw-bat-color: rgb(8 6 5 / 0.9);
  --hw-layer-z: 2147483000;

  accent-color: var(--hw-pumpkin);
}

/* ---------- Sélection & barre de défilement ---------- */

:root.halloween ::selection {
  background: var(--hw-pumpkin);
  color: #1a0b2e;
}

:root.halloween,
:root.theme-halloween {
  scrollbar-color: var(--hw-pumpkin) #1a0b2e;
}

/* ---------- Lueurs sur les boutons ---------- */

:root.halloween :is(
    button,
    [type="submit"],
    [type="button"],
    .btn,
    .button,
    a[class*="btn"],
    a[class*="button"],
    .hw-glow
  ):not(.hw-no-glow, [aria-hidden="true"], [disabled]) {
  --hw-glow-a: rgb(255 122 26 / 0.55);
  --hw-glow-b: rgb(255 80 0 / 0.22);
  box-shadow:
    0 0 0 1px rgb(255 160 80 / 0.55),
    0 0 12px 1px var(--hw-glow-a),
    0 0 30px 4px var(--hw-glow-b);
  animation: hw-glow-pulse 3.2s ease-in-out infinite;
  transition:
    box-shadow 0.25s ease,
    transform 0.25s ease,
    filter 0.25s ease;
}

:root.halloween :is(
    button,
    [type="submit"],
    [type="button"],
    .btn,
    .button,
    a[class*="btn"],
    a[class*="button"],
    .hw-glow
  ):not(.hw-no-glow, [aria-hidden="true"], [disabled]):is(:hover, :focus-visible) {
  animation-play-state: paused;
  transform: translateY(-1px);
  filter: saturate(1.15) brightness(1.05);
  box-shadow:
    0 0 0 1px rgb(255 190 120 / 0.9),
    0 0 18px 3px rgb(255 122 26 / 0.75),
    0 0 44px 10px rgb(255 100 20 / 0.35),
    inset 0 0 12px rgb(255 200 140 / 0.25);
}

:root.halloween :is(button, a, input, [tabindex]):focus-visible {
  outline: 2px solid var(--hw-pumpkin);
  outline-offset: 3px;
}

/* Champs de saisie : halo discret au focus */
:root.halloween :is(input[type="text"], input[type="search"], input[type="email"], input:not([type]), textarea):focus {
  box-shadow:
    0 0 0 2px rgb(255 122 26 / 0.6),
    0 0 22px rgb(255 122 26 / 0.35);
}

@keyframes hw-glow-pulse {
  0%,
  100% {
    box-shadow:
      0 0 0 1px rgb(255 160 80 / 0.5),
      0 0 10px 1px var(--hw-glow-a),
      0 0 24px 3px var(--hw-glow-b);
  }
  50% {
    box-shadow:
      0 0 0 1px rgb(255 180 100 / 0.75),
      0 0 18px 3px rgb(255 100 20 / 0.7),
      0 0 40px 8px rgb(255 90 10 / 0.32);
  }
}

/* ---------- Calque décoratif (injecté par halloween.js) ---------- */

.hw-fx {
  position: fixed;
  inset: 0;
  z-index: var(--hw-layer-z);
  pointer-events: none;
  overflow: hidden;
  /* strict containment bloquait les animations sur certains mobiles */
  contain: layout style paint;
}

:root:not(.halloween):not(.theme-halloween) .hw-fx {
  display: none;
}

/* Masque SVG commun : la couleur vient de background-color */
.hw-fx :is(.hw-web, .hw-bat__wings, .hw-spider__body, .hw-bats-pattern) {
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-size: contain;
}

/* Motif de chauves-souris en filigrane, très léger */
.hw-bats-pattern {
  position: absolute;
  inset: -10%;
  background-color: var(--hw-watermark);
  -webkit-mask-image: url("bats-pattern.svg");
  mask-image: url("bats-pattern.svg");
  -webkit-mask-repeat: repeat !important;
  mask-repeat: repeat !important;
  -webkit-mask-size: 520px 420px !important;
  mask-size: 520px 420px !important;
  opacity: 0.82;
  animation: hw-drift 120s linear infinite;
}

@keyframes hw-drift {
  to {
    transform: translate3d(-520px, -140px, 0);
  }
}

/* Toiles d'araignée dans les coins */
.hw-web {
  position: absolute;
  width: clamp(140px, 18vw, 280px);
  aspect-ratio: 1;
  background-color: var(--hw-watermark-strong);
  -webkit-mask-image: url("web.svg");
  mask-image: url("web.svg");
}

.hw-web--tl {
  top: 0;
  left: 0;
}

.hw-web--tr {
  top: 0;
  right: 0;
  transform: scaleX(-1);
}

.hw-web--bl {
  bottom: 0;
  left: 0;
  width: clamp(110px, 12vw, 190px);
  transform: scaleY(-1);
  opacity: 0.7;
}

/* Araignée suspendue */
.hw-spider {
  position: absolute;
  top: 0;
  right: clamp(60px, 9vw, 140px);
  width: 1px;
  height: clamp(90px, 16vh, 170px);
  background: linear-gradient(to bottom, transparent, rgb(255 170 100 / 0.35));
  transform-origin: top center;
  animation: hw-swing 6s ease-in-out infinite;
}

.hw-spider__body {
  position: absolute;
  bottom: -18px;
  left: 50%;
  width: 26px;
  aspect-ratio: 60 / 50;
  translate: -50% 0;
  background-color: rgb(30 15 50 / 0.7);
  -webkit-mask-image: url("spider.svg");
  mask-image: url("spider.svg");
  filter: drop-shadow(0 0 6px rgb(255 122 26 / 0.6));
  animation: hw-bob 4s ease-in-out infinite;
}

@keyframes hw-swing {
  0%,
  100% {
    rotate: -4deg;
  }
  50% {
    rotate: 4deg;
  }
}

@keyframes hw-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(14px);
  }
}

/* Chauves-souris en vol */
.hw-bat {
  --hw-top: 20vh;
  --hw-size: 46px;
  --hw-dur: 26s;
  --hw-delay: 0s;
  position: absolute;
  top: var(--hw-top);
  left: 0;
  width: var(--hw-size);
  aspect-ratio: 100 / 46;
  opacity: 0;
  will-change: transform, opacity;
  animation: hw-fly var(--hw-dur) linear var(--hw-delay) infinite;
}

.hw-bat--rtl {
  animation-name: hw-fly-rtl;
}

.hw-bat__wings {
  width: 100%;
  height: 100%;
  background-color: var(--hw-bat-color);
  -webkit-mask-image: url("bat.svg");
  mask-image: url("bat.svg");
  filter: drop-shadow(0 0 8px rgb(255 122 26 / 0.45));
  transform-origin: center 40%;
  animation: hw-flap 0.32s ease-in-out infinite alternate;
}

@keyframes hw-flap {
  from {
    transform: scaleY(1);
  }
  to {
    transform: scaleY(0.35) scaleX(0.92);
  }
}

@keyframes hw-fly {
  0% {
    transform: translate3d(-10vw, 0, 0) rotate(4deg);
    opacity: 0;
  }
  8% {
    opacity: 0.92;
  }
  25% {
    transform: translate3d(22vw, -6vh, 0) rotate(-6deg);
  }
  50% {
    transform: translate3d(52vw, 4vh, 0) rotate(5deg);
  }
  75% {
    transform: translate3d(80vw, -8vh, 0) rotate(-4deg);
  }
  92% {
    opacity: 0.92;
  }
  100% {
    transform: translate3d(112vw, -2vh, 0) rotate(3deg);
    opacity: 0;
  }
}

@keyframes hw-fly-rtl {
  0% {
    transform: translate3d(112vw, 0, 0) scaleX(-1);
    opacity: 0;
  }
  8% {
    opacity: 0.88;
  }
  30% {
    transform: translate3d(76vw, 7vh, 0) scaleX(-1);
  }
  60% {
    transform: translate3d(40vw, -5vh, 0) scaleX(-1);
  }
  92% {
    opacity: 0.88;
  }
  100% {
    transform: translate3d(-10vw, 3vh, 0) scaleX(-1);
    opacity: 0;
  }
}

/* Brume au bas de l'écran */
.hw-fog {
  position: absolute;
  inset: auto -20% 0 -20%;
  height: 22vh;
  background:
    radial-gradient(40% 70% at 20% 100%, rgb(255 122 26 / 0.18), transparent 70%),
    radial-gradient(35% 60% at 65% 100%, rgb(255 60 0 / 0.14), transparent 70%),
    radial-gradient(30% 55% at 95% 100%, rgb(255 180 100 / 0.1), transparent 70%);
  animation: hw-fog 18s ease-in-out infinite alternate;
}

@keyframes hw-fog {
  to {
    transform: translateX(8%);
  }
}

/* ---------- Mobile : on allège ---------- */

@media (max-width: 640px) {
  /* nth-of-type comptait tous les divs (toiles, araignée…) et cachait TOUTES les chauves-souris */
  .hw-bat ~ .hw-bat ~ .hw-bat {
    display: none;
  }
  .hw-web--bl {
    display: none;
  }
  .hw-spider {
    right: 24px;
  }
  .hw-bat {
    --hw-dur: 18s;
  }
}

/* ---------- Accessibilité : pas d'animation si demandé ---------- */

@media (prefers-reduced-motion: reduce) {
  :root.halloween :is(button, [type="submit"], [type="button"], .btn, .button, a[class*="btn"], a[class*="button"], .hw-glow) {
    animation: none !important;
  }
  .hw-bat__wings {
    animation: none !important;
  }
}

@media print {
  .hw-fx {
    display: none !important;
  }
}