/* ─── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── Variables — palette céleste ───────────────────── */
:root {
  --bg:         #f0ede8;
  --fg:         #1c1828;
  --gold:       #c8a84b;
  --gold-light: #ede0b0;
  --muted:      #7e788c;
  --border:     rgba(200,168,75,.25);
  --radius:     6px;
  --gap:        1.4rem;
  --font-title: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-body:  Georgia, "Times New Roman", serif;
  --ease:       cubic-bezier(.4,0,.2,1);
}

/* ─── Canvas particules ─────────────────────────────── */
#heaven {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ─── Base ───────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background: linear-gradient(160deg, #f5f2ee 0%, #ede9f8 50%, #f0ede8 100%);
  background-attachment: fixed;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  min-height: 100dvh;
  position: relative;
}

/* ─── Header ─────────────────────────────────────────── */
header {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 5rem 1.5rem 3rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.halo {
  position: absolute;
  top: 3rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(440px, 90vw);
  height: min(440px, 90vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,168,75,.14) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse-halo 4s ease-in-out infinite;
}

@keyframes pulse-halo {
  0%, 100% { transform: translateX(-50%) scale(1);   opacity: .7; }
  50%       { transform: translateX(-50%) scale(1.12); opacity: 1; }
}

header .eyebrow {
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .9rem;
  position: relative;
}

header h1 {
  font-family: var(--font-title);
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: normal;
  font-style: italic;
  line-height: 1;
  background: linear-gradient(135deg, #1c1828 20%, var(--gold) 55%, #1c1828 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 20px rgba(200,168,75,.3));
  animation: shimmer 6s ease-in-out infinite;
  background-size: 200% auto;
  position: relative;
}

@keyframes shimmer {
  0%   { background-position: 0% center; }
  50%  { background-position: 100% center; }
  100% { background-position: 0% center; }
}

header h1::after {
  content: "";
  display: block;
  margin: .6rem auto 0;
  width: 70px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

header .sub {
  margin-top: 1rem;
  color: var(--muted);
  font-style: italic;
  font-size: .95rem;
  letter-spacing: .04em;
}

/* ─── Gallery grid ───────────────────────────────────── */
main {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--gap) var(--gap) 5rem;
}

#gallery {
  columns: 3 280px;
  column-gap: var(--gap);
}

.photo-item {
  break-inside: avoid;
  margin-bottom: var(--gap);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(200,168,75,.08);
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s var(--ease), transform .55s var(--ease),
              box-shadow .35s var(--ease);
  outline: 1px solid rgba(200,168,75,.15);
}

.photo-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.photo-item:hover {
  box-shadow: 0 8px 40px rgba(200,168,75,.22), 0 2px 12px rgba(0,0,0,.08);
  outline-color: rgba(200,168,75,.5);
}

.photo-item img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .5s var(--ease), filter .5s var(--ease);
}

.photo-item:hover img {
  transform: scale(1.05);
  filter: brightness(1.04) saturate(1.08);
}

.photo-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,rgba(200,168,75,.07) 0%,rgba(232,227,245,.04) 100%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  z-index: 1;
  pointer-events: none;
}

.photo-item:hover::before { opacity: 1; }

.photo-item .caption {
  position: absolute;
  inset: auto 0 0;
  padding: 1.2rem 1rem .8rem;
  background: linear-gradient(transparent, rgba(20,16,35,.68));
  color: rgba(255,255,255,.92);
  font-size: .82rem;
  font-style: italic;
  letter-spacing: .04em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
  z-index: 2;
}

.photo-item:hover .caption {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Empty state ────────────────────────────────────── */
#empty {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 5rem 1rem;
  color: var(--muted);
  font-style: italic;
  text-align: center;
}

#empty svg { opacity: .35; }

/* ─── Lightbox ───────────────────────────────────────── */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(8, 6, 18, .94);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
  padding: 1.5rem;
}

#lightbox::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(200,168,75,.07) 0%, transparent 65%);
  pointer-events: none;
}

#lightbox.open { opacity: 1; pointer-events: auto; }

#lightbox-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90dvh;
}

#lightbox-img {
  max-width: 100%;
  max-height: calc(90dvh - 5rem);
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px rgba(200,168,75,.28),
              0 24px 80px rgba(0,0,0,.7),
              0 0 60px rgba(200,168,75,.12);
  transform: scale(.96);
  transition: transform .35s var(--ease);
}

#lightbox.open #lightbox-img { transform: scale(1); }

#lightbox-caption {
  margin-top: .8rem;
  color: rgba(200,168,75,.75);
  font-style: italic;
  font-size: .88rem;
  text-align: center;
  letter-spacing: .06em;
}

.lb-btn {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(200,168,75,.08);
  border: 1px solid rgba(200,168,75,.3);
  color: var(--gold-light);
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, border-color .2s;
  user-select: none;
}

.lb-btn:hover {
  background: rgba(200,168,75,.2);
  border-color: rgba(200,168,75,.6);
}

#lb-prev { left: 1rem; }
#lb-next { right: 1rem; }

#lb-close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: rgba(200,168,75,.08);
  border: 1px solid rgba(200,168,75,.3);
  color: var(--gold-light);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}

#lb-close:hover { background: rgba(200,168,75,.2); }

#lb-counter {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(200,168,75,.45);
  font-size: .76rem;
  letter-spacing: .14em;
  font-family: var(--font-title);
  font-style: italic;
}

/* ─── Footer ─────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 1.5rem;
  color: var(--gold);
  font-size: .82rem;
  font-style: italic;
  letter-spacing: .08em;
  border-top: 1px solid var(--border);
}

/* ─── Responsive ─────────────────────────────────────── */
@media (max-width: 500px) {
  #gallery { columns: 1; }
  .lb-btn { display: none; }
}