/* =========================================
   PORTFOLIO.CSS — work/portfolio.html uniquement
   Galerie Lab : cartes draggables + filtres
   ========================================= */

body {
  overflow: hidden;
  height: 100vh;
}

/* Nav z-index élevé pour cette page */
.nav { z-index: 500; }

/* ── FILTRES ─────────────────────────────── */
#filters {
  position: fixed;
  top: 61px;
  left: 0; right: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  overflow-x: auto;
  scrollbar-width: none;
}
#filters::-webkit-scrollbar { display: none; }

.filter-btn {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: none;
  border-right: 1px solid var(--rule);
  padding: 0 20px;
  height: 50px;
  display: flex;
  align-items: center;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s;
  flex-shrink: 0;
}
.filter-btn:first-child { padding-left: 0; }
.filter-btn:hover { color: var(--ink); }
.filter-btn.active {
  color: var(--ink);
  border-bottom: 2px solid var(--ink);
  margin-bottom: -1px;
}

/* ── SCÈNE ───────────────────────────────── */
#lab-scene {
  position: fixed;
  left: 0; right: 0;
  top: 112px; /* nav 61px + filtres 51px */
  bottom: 0;
  overflow: hidden;
  background: var(--bg);
}

/* ── CARTES ──────────────────────────────── */
.card {
  position: absolute;
  overflow: hidden;
  cursor: grab;
  will-change: transform, opacity;
  background: #f0eeea;
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.16,1,0.3,1);
}
.card:active { cursor: grabbing; }
.card.hidden {
  opacity: 0 !important;
  transform: scale(0.9) rotate(var(--rot, 0deg)) !important;
  pointer-events: none;
}
.card img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* ── BARRE BASSE ─────────────────────────── */
#lab-ui {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 400;
  display: flex;
  align-items: stretch;
  border: 1px solid var(--ink);
  background: var(--bg);
}
.ui-btn {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: none;
  padding: 11px 22px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.ui-btn:hover { background: var(--ink); color: var(--bg); }
.ui-sep { width: 1px; background: var(--ink); flex-shrink: 0; }
#count-label {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 11px 22px;
  pointer-events: none;
}

/* ── RESPONSIVE MOBILE ──────────────────── */
@media (max-width: 720px) {
  #lab-ui { bottom: 16px; }
  .ui-btn { padding: 14px 14px; font-size: 10px; display: flex; align-items: center; }
  #count-label { padding: 14px 14px; display: flex; align-items: center; }
  #filters { height: 44px; }
  .filter-btn { font-size: 11px; padding: 0 14px; height: 44px; }
  .filter-btn:first-child { padding-left: 0; }
}