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

:root {
  --bg: #111111;
  --surface: #1c1c1c;
  --surface-2: #242424;
  --border: #2e2e2e;
  --border-2: #3a3a3a;
  --text: #f0f0f0;
  --text-2: #9a9a9a;
  --text-3: #666;
  --accent: #c9a96e;
  --accent-dim: rgba(201, 169, 110, 0.15);
  --radius: 6px;
  --transition: 150ms ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 17, 17, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 56px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.header-search {
  flex: 1;
  max-width: 480px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-3);
  pointer-events: none;
}

#search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  padding: 8px 12px 8px 36px;
  outline: none;
  transition: border-color var(--transition);
}

#search-input::placeholder { color: var(--text-3); }
#search-input:focus { border-color: var(--accent); }

/* ── Filter bar ── */

.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.filter-group select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-2);
  font-family: inherit;
  font-size: 13px;
  padding: 6px 28px 6px 10px;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color var(--transition), color var(--transition);
}

.filter-group select:focus,
.filter-group select:hover { border-color: var(--border-2); color: var(--text); }

.result-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-3);
  white-space: nowrap;
}

/* ── Card grid ── */

#exhibition-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  padding-bottom: 40px;
}

.exhibition-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}

.exhibition-card:hover {
  border-color: var(--border-2);
  transform: translateY(-2px);
}

.card-poster {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
  background: var(--surface-2);
}

.card-poster-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.card-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.card-museum {
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-date {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 4px;
}

.card-status {
  display: inline-block;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 500;
  margin-top: 4px;
  width: fit-content;
}

.status-current { background: rgba(100, 200, 140, 0.12); color: #64c88c; }
.status-upcoming { background: var(--accent-dim); color: var(--accent); }
.status-ended { background: rgba(100,100,100,0.1); color: var(--text-3); }

/* ── Load more ── */

#load-more-wrapper {
  display: flex;
  justify-content: center;
  padding: 24px 0 48px;
}

.load-more-btn {
  background: transparent;
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  color: var(--text-2);
  font-family: inherit;
  font-size: 13px;
  padding: 10px 32px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.load-more-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Empty state ── */

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: var(--text-3);
}

.empty-state p { margin-top: 8px; font-size: 13px; }

/* ── Modal ── */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.75);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-2);
  cursor: pointer;
  padding: 6px;
  line-height: 0;
  z-index: 1;
  transition: color var(--transition);
}

.modal-close:hover { color: var(--text); }

.modal-inner {
  display: flex;
  gap: 0;
}

.modal-poster-col {
  width: 260px;
  flex-shrink: 0;
}

.modal-poster-col img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 8px 0 0 8px;
}

.modal-poster-placeholder {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: 11px;
  border-radius: 8px 0 0 8px;
}

.modal-info-col {
  flex: 1;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.modal-info-col h2 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

.modal-museum {
  font-size: 14px;
  color: var(--text-2);
}

.modal-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.meta-row {
  display: flex;
  gap: 12px;
  font-size: 13px;
}

.meta-key {
  color: var(--text-3);
  width: 36px;
  flex-shrink: 0;
}

.meta-val { color: var(--text-2); }

.modal-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

.modal-link-btn {
  display: inline-block;
  color: var(--accent);
  font-size: 13px;
  text-decoration: none;
  transition: opacity var(--transition);
}

.modal-link-btn:hover { opacity: 0.75; }

.modal-source {
  font-size: 11px;
  color: var(--text-3);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ── Responsive ── */

@media (max-width: 640px) {
  .header-inner { gap: 12px; }
  .header-search { max-width: none; }
  .logo { font-size: 16px; }

  #exhibition-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .modal-inner { flex-direction: column; }

  .modal-poster-col {
    width: 100%;
    max-height: 240px;
    overflow: hidden;
  }

  .modal-poster-col img { border-radius: 8px 8px 0 0; max-height: 240px; }
  .modal-poster-placeholder { border-radius: 8px 8px 0 0; min-height: 160px; }
  .modal-info-col { padding: 20px 16px; }
}

@media (min-width: 641px) and (max-width: 900px) {
  #exhibition-container { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 901px) and (max-width: 1100px) {
  #exhibition-container { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1101px) {
  #exhibition-container { grid-template-columns: repeat(5, 1fr); }
}