/* ========================================
   ESPHAM Photo Contest — Styles
   ======================================== */

:root {
  --bg: #0c0c0c;
  --bg-card: #1a1a2e;
  --header-bg: #475569;
  --accent: #5f9ea0;
  --accent-hover: #4a8a8c;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --border: #334155;
  --heart: #e74c6f;
  --radius: 10px;
}

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

html { font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ---- Header & Nav ---- */
header {
  background: var(--header-bg);
  padding: 1rem;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 100;
}
header h1 { font-size: 1.4rem; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
#main-nav { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; }
.nav-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.nav-btn.active, .nav-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---- Main Content ---- */
#main-content { padding: 1rem; max-width: 1600px; margin: 0 auto; }

/* ---- Gallery Toolbar ---- */
.gallery-toolbar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.size-group { display: flex; gap: 0.25rem; }
.size-btn, .fav-filter-btn, .email-btn, .reshuffle-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.size-btn.active, .fav-filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.email-btn { background: var(--accent); border-color: var(--accent); color: #fff; }
.email-btn:hover { background: var(--accent-hover); }
.reshuffle-btn:hover, .size-btn:hover, .fav-filter-btn:hover {
  border-color: var(--accent);
}

/* ---- Vote Summary Bar ---- */
.vote-summary {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding: 0.5rem;
}
.summary-chip {
  padding: 0.3rem 0.7rem;
  border: 2px solid;
  border-radius: 20px;
  font-size: 0.8rem;
  white-space: nowrap;
}

/* ---- Photo Grid ---- */
.photo-grid {
  display: grid;
  gap: 1rem;
}
.photo-grid.size-s  { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.photo-grid.size-m  { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.photo-grid.size-l  { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.photo-grid.size-xl { grid-template-columns: repeat(auto-fill, minmax(450px, 1fr)); }

/* ---- Photo Card ---- */
.photo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: transform 0.15s;
}
.photo-card:hover { transform: translateY(-2px); }

.photo-img {
  width: 100%;
  display: block;
  cursor: pointer;
  object-fit: contain;
  background: #000;
}

.photo-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.6rem;
  gap: 0.5rem;
}
.photo-title {
  font-size: 0.85rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Heart button */
.heart-btn {
  background: transparent;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--border);
  transition: color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.heart-btn.active { color: var(--heart); transform: scale(1.15); }
.heart-btn:hover { color: var(--heart); }

/* Vote buttons row */
.vote-row {
  display: flex;
  gap: 0.3rem;
  padding: 0.4rem 0.6rem 0.6rem;
}
.vote-btn {
  flex: 1;
  padding: 0.35rem 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s;
  min-width: 0;
}
.vote-btn:hover { border-color: var(--accent); color: var(--text); }
.vote-btn.selected { color: #000; border-color: transparent; }

/* Rank badge overlay */
.rank-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #000;
  pointer-events: none;
}

/* ---- Year Nav (Winners/Archive) ---- */
.year-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.year-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.year-btn.active, .year-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---- Winners Grid ---- */
.winners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.winner-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
}
.winner-card img {
  width: 100%;
  display: block;
  object-fit: contain;
  background: #000;
  cursor: pointer;
}
.winner-label {
  padding: 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}

/* ---- Collage Grid ---- */
.collage-grid {
  columns: 4;
  column-gap: 0.75rem;
}
.collage-item {
  break-inside: avoid;
  margin-bottom: 0.75rem;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.collage-item img { width: 100%; display: block; }
.collage-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.4rem 0.6rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  font-size: 0.8rem;
  color: #fff;
}

/* ---- Archive Cards ---- */
.archive-card .vote-row { display: none; }

/* ---- Lightbox ---- */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}
#lightbox.active { display: flex; }
.lb-content {
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lb-img {
  max-width: 95vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
}
.lb-caption {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--text);
  text-align: center;
}
.lb-close, .lb-prev, .lb-next {
  position: absolute;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  z-index: 1001;
  transition: opacity 0.2s;
}
.lb-close { top: 1rem; right: 1.5rem; font-size: 2.5rem; }
.lb-prev  { left: 1rem; top: 50%; transform: translateY(-50%); font-size: 3rem; }
.lb-next  { right: 1rem; top: 50%; transform: translateY(-50%); font-size: 3rem; }
.lb-close:hover, .lb-prev:hover, .lb-next:hover { opacity: 0.7; }
.lb-vote-row {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1rem;
}
.lb-vote-btn {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}
.lb-vote-btn:hover { transform: scale(1.15); border-color: #fff; }
.lb-vote-btn.selected { border-color: transparent; transform: scale(1.1); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  header h1 { font-size: 1.1rem; }
  .nav-btn { padding: 0.4rem 0.7rem; font-size: 0.8rem; }
  .gallery-toolbar { padding: 0.5rem; }
  .collage-grid { columns: 2; }
  .winners-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .lb-prev, .lb-next { font-size: 2rem; }
}
@media (max-width: 480px) {
  .collage-grid { columns: 1; }
  .photo-grid.size-s  { grid-template-columns: 1fr; }
  .photo-grid.size-m  { grid-template-columns: 1fr; }
}