/* ==========================================================
   Hero : lumière du matin. Pile de cartes photo, étiquettes
   flottantes, fond dégradé mouvant, rayons et poussière dorée.
   ========================================================== */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  background: linear-gradient(180deg, var(--sky) 0%, var(--hanji) 85%);
  padding-top: clamp(40px, 7vw, 90px);
}
#motes { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; pointer-events: none; }
.hero-grid {
  position: relative; z-index: 2;
  max-width: var(--max); margin-inline: auto; padding: 0 var(--gutter) clamp(80px, 10vw, 130px);
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: center;
}
.hero-text { min-width: 0; }
.hero h1 { margin-top: 18px; font-size: var(--step-4); line-height: .92; letter-spacing: -.03em; }
.hero h1 .first { display: block; font-weight: 800; }
.hero h1 .last { display: block; font-weight: 200; color: var(--sun); }
.hero .haetsal {
  margin-top: 26px; display: grid; gap: 4px;
  padding-left: 18px; border-left: 3px solid var(--honey);
}
.hero .haetsal .ko { font-family: var(--f-display); font-size: var(--step-2); font-weight: 500; }
.hero .haetsal .fr { color: var(--ink-soft); font-size: var(--step-1); }
.hero-tag { margin-top: 22px; max-width: 46ch; }
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }

/* Fond : dégradé doux et mouvant (taches de lumière floutées) */
.mesh { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.mesh i { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; animation: drift 20s ease-in-out infinite alternate; }
.mesh .m1 { width: 46vw; height: 46vw; right: -6vw; top: -14vw; background: var(--honey); }
.mesh .m2 { width: 34vw; height: 34vw; left: 30%; top: 30%; background: var(--peach); animation-duration: 26s; animation-delay: -8s; }
.mesh .m3 { width: 30vw; height: 30vw; right: 8%; bottom: -12vw; background: var(--rose); opacity: .35; animation-duration: 23s; animation-delay: -4s; }
@keyframes drift { from { transform: translate(0, 0) scale(1); } to { transform: translate(-4vw, 3vw) scale(1.12); } }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px; z-index: 1; pointer-events: none; background: linear-gradient(transparent, var(--hanji)); }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft);
}
.kicker::before { content: ""; width: 28px; height: 2px; border-radius: 1px; background: var(--sun); }

/* Pile de cartes photo */
.stack { position: relative; width: min(100%, 420px); aspect-ratio: 4 / 5; justify-self: center; margin-bottom: 56px; }
.card {
  position: absolute; inset: 0; margin: 0; overflow: hidden; cursor: pointer;
  border-radius: 28px; border: 6px solid var(--card); background: var(--card);
  box-shadow: 0 34px 60px -28px rgba(110, 54, 20, .6);
  transition: transform .9s cubic-bezier(.2, .8, .2, 1), opacity .6s, filter .6s;
}
.card img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.card[data-pos="0"] { z-index: 4; transform: rotate(-2deg); }
.card[data-pos="1"] { z-index: 3; transform: translate(-13%, 3%) rotate(-9deg) scale(.92); filter: saturate(.85) brightness(.96); }
.card[data-pos="2"] { z-index: 2; transform: translate(13%, 5%) rotate(8deg) scale(.88); filter: saturate(.8) brightness(.93); }
.card[data-pos="3"] { z-index: 1; transform: translate(0, 8%) scale(.82); opacity: 0; }
.card.leaving { z-index: 5; transform: translate(70%, -6%) rotate(20deg) scale(.96); opacity: 0; }
.stack:hover .card[data-pos="0"] { transform: rotate(0deg) translateY(-6px); }
.stack:hover .card[data-pos="1"] { transform: translate(-22%, 2%) rotate(-13deg) scale(.92); }
.stack:hover .card[data-pos="2"] { transform: translate(22%, 4%) rotate(12deg) scale(.88); }

/* Étiquettes flottantes */
.sticker {
  position: absolute; z-index: 6; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 999px;
  background: var(--card); color: var(--ink); box-shadow: var(--shadow);
  font-size: .9rem; animation: float 6s ease-in-out infinite;
}
.sticker b { color: var(--sun); font-weight: 700; }
.st1 { left: -16%; top: 10%; }
.st2 { right: -12%; top: 44%; animation-delay: -2s; background: var(--sun); color: #fff8ef; font-family: var(--f-hand); font-size: 1.5rem; line-height: 1; padding: 8px 18px; transform: rotate(6deg); }
.st3 { left: -8%; bottom: 10%; animation-delay: -4s; }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -10px; } }

.stack-nav {
  position: absolute; left: 50%; bottom: -56px; transform: translateX(-50%); z-index: 6;
  display: flex; align-items: center; gap: 10px;
}
.stack-nav button {
  appearance: none; cursor: pointer; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  display: grid; place-items: center; transition: background .2s, color .2s, border-color .2s;
}
.stack-nav button:hover { background: var(--sun); border-color: var(--sun); color: #fff8ef; }
.stack-nav svg { width: 16px; height: 16px; }
.stack-nav .count { min-width: 44px; text-align: center; font-size: .85rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .stack { order: -1; width: min(72vw, 330px); }
  .st1 { left: -8%; top: 6%; font-size: .8rem; }
  .st2 { right: -8%; font-size: 1.25rem; }
  .st3 { left: -4%; font-size: .8rem; }
}

/* Bouton des particules, à côté de l'effet qu'il contrôle */
.motes-toggle {
  position: absolute; z-index: 3; right: var(--gutter); top: 16px;
  appearance: none; cursor: pointer; font: inherit; font-size: .82rem;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 10px; border-radius: 999px;
  background: color-mix(in srgb, var(--card) 80%, transparent); color: var(--ink-soft);
  border: 1px solid var(--line);
}
.motes-toggle .spark { color: var(--honey); font-size: 1rem; transition: transform .4s, color .3s; }
.motes-toggle[aria-pressed="true"] { color: var(--ink); }
.motes-toggle[aria-pressed="true"] .spark { color: var(--sun); transform: rotate(45deg); }
.motes-toggle[aria-pressed="false"] .spark { opacity: .45; }

/* Rayons de soleil : faisceaux qui tombent du coin supérieur droit */
:root { --beam: rgba(255, 246, 214, .75); --beam-warm: rgba(255, 196, 92, .32); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --beam: rgba(255, 196, 120, .22); --beam-warm: rgba(255, 140, 60, .16); } }
:root[data-theme="dark"] { --beam: rgba(255, 196, 120, .22); --beam-warm: rgba(255, 140, 60, .16); }
.sunbeams {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  -webkit-mask: linear-gradient(180deg, #000 0%, #000 45%, transparent 92%);
          mask: linear-gradient(180deg, #000 0%, #000 45%, transparent 92%);
  transition: opacity 1s;
}
.sunbeams span {
  position: absolute; inset: -30% -20% 0 -40%;
  transform-origin: 88% 0;
  filter: blur(10px);
}
.sunbeams .b1 {
  background: conic-gradient(from 0deg at 88% 0%, transparent 0deg 176deg,
    transparent 183.8deg, var(--beam) 186deg, transparent 188.2deg,
    transparent 195.5deg, var(--beam) 199deg, transparent 202.5deg,
    transparent 209.4deg, var(--beam) 211deg, transparent 212.6deg,
    transparent 220deg, var(--beam) 224deg, transparent 228deg,
    transparent 236deg, var(--beam) 238deg, transparent 240deg,
    transparent 248deg, var(--beam) 251deg, transparent 254deg,
    transparent 263.8deg, var(--beam) 266deg, transparent 268.2deg,
    transparent 280deg 360deg);
  animation: beam-sway 14s ease-in-out infinite alternate, beam-breathe 6s ease-in-out infinite;
}
.sunbeams .b2 {
  --beam: var(--beam-warm);
  background: conic-gradient(from 0deg at 88% 0%, transparent 0deg 176deg,
    transparent 188deg, var(--beam) 192deg, transparent 196deg,
    transparent 212deg, var(--beam) 217deg, transparent 222deg,
    transparent 229deg, var(--beam) 232deg, transparent 235deg,
    transparent 253deg, var(--beam) 258deg, transparent 263deg,
    transparent 280deg 360deg);
  filter: blur(18px);
  animation: beam-sway 19s ease-in-out infinite alternate-reverse, beam-breathe 8s ease-in-out -3s infinite;
}
.sunbeams .b3 { /* éclat diffus autour de la source */
  background: radial-gradient(60% 45% at 88% 0%, var(--beam), transparent 70%);
  filter: none; animation: beam-breathe 7s ease-in-out -1s infinite;
}
@keyframes beam-sway { from { transform: rotate(-2.5deg); } to { transform: rotate(2.5deg); } }
@keyframes beam-breathe { 0%, 100% { opacity: .65; } 50% { opacity: 1; } }
.hero.lights-off .sunbeams { opacity: 0; }
@media (max-width: 860px) {
  .motes-toggle { top: auto; bottom: 18px; }
}