:root {
  --bg: #0a0a12;
  --bg-card: #14141f;
  --accent: #2ea5ff;
  --accent-dim: #1a5f8f;
  --text: #e8e8ef;
  --text-dim: #8888a0;
  --font-display: 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
}

/* --- Topbar / catálogo --- */
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 28px;
  background: #0d0d16;
  border-bottom: 1px solid #1e1e2c;
  position: sticky;
  top: 0;
  z-index: 5;
}
.topbar h1 { margin: 0; font-size: 1.4rem; letter-spacing: 1px; }
.topbar h1 span { color: var(--accent); }
#search {
  flex: 1;
  max-width: 420px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #262638;
  background: #1a1a28;
  color: var(--text);
}
#search:focus { outline: 2px solid var(--accent); }
.user-box { display: flex; align-items: center; gap: 12px; color: var(--text-dim); font-size: 0.9rem; }
.user-box a { color: var(--accent); text-decoration: none; }

main { padding: 28px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  display: block;
  background: var(--bg-card);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s ease;
  border: 1px solid #1e1e2c;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent-dim); }
.card img { width: 100%; aspect-ratio: 2/3; object-fit: cover; display: block; background: #1a1a28; }
.card-info { padding: 10px 12px; }
.card-info h3 { margin: 0 0 4px; font-size: 1rem; }
.card-info p { margin: 0; font-size: 0.8rem; color: var(--text-dim); }
.ar-badge {
  position: absolute;
  top: 8px; right: 8px;
  background: var(--accent);
  color: #001a2b;
  font-weight: bold;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 20px;
}

footer { text-align: center; color: var(--text-dim); padding: 20px; font-size: 0.85rem; }
.empty { color: var(--text-dim); }

/* --- Auth --- */
.auth-page { display: flex; align-items: center; justify-content: center; height: 100vh; }
.auth-card {
  background: var(--bg-card);
  padding: 36px;
  border-radius: 12px;
  width: 320px;
  border: 1px solid #1e1e2c;
  text-align: center;
}
.auth-card h1 { color: var(--accent); margin-top: 0; }
.auth-form { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.auth-form input {
  padding: 10px 12px; border-radius: 8px; border: 1px solid #262638;
  background: #1a1a28; color: var(--text);
}
.auth-form button {
  padding: 10px; border-radius: 8px; border: none; cursor: pointer;
  background: var(--accent); color: #001a2b; font-weight: bold;
}
.error { color: #ff6b6b; font-size: 0.85rem; }

.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tab-btn {
  flex: 1; padding: 8px; border-radius: 8px; border: 1px solid #262638;
  background: transparent; color: var(--text-dim); cursor: pointer; font-size: 0.85rem;
}
.tab-btn.active { background: var(--accent); color: #001a2b; border-color: var(--accent); font-weight: bold; }

/* --- Visor AR --- */
.ar-hud {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: white;
  z-index: 10;
}
.ar-back { color: var(--accent); text-decoration: none; font-size: 0.9rem; }
.ar-hud h2 { margin: 6px 0; font-size: 1.1rem; }
.ar-controls { display: flex; align-items: center; gap: 14px; }
.ar-controls button {
  padding: 8px 16px; border-radius: 20px; border: none; cursor: pointer;
  background: var(--accent); color: #001a2b; font-weight: bold;
}
.ar-status { font-size: 0.8rem; color: var(--text-dim); margin: 6px 0 0; }

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
}