/* ============================================
   Viewer Page Styles
   ============================================ */

.viewer-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Hero Section ---- */
.viewer-hero {
  text-align: center;
  padding: 60px 24px 40px;
  position: relative;
  z-index: 1;
}

.viewer-hero .school-badge {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
  color: #fff;
  box-shadow: 0 8px 32px rgba(99,102,241,0.3);
  animation: slideUp 0.6s ease both;
}

.viewer-hero h1 {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slideUp 0.6s ease 0.1s both;
}

.viewer-hero .subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 400;
  animation: slideUp 0.6s ease 0.2s both;
}

/* ---- Search Section ---- */
.viewer-search-section {
  padding: 0 24px;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  animation: slideUp 0.6s ease 0.3s both;
}

.search-mode-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--glass-bg);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.search-mode-tab {
  flex: 1;
  padding: 12px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--text-muted);
}

.search-mode-tab:hover {
  color: var(--text-secondary);
}

.search-mode-tab.active {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
  color: #fff;
  box-shadow: 0 4px 12px rgba(99,102,241,0.35);
}

/* ---- QR Scanner ---- */
.qr-scanner-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid var(--glass-border);
}

#qr-reader {
  width: 100% !important;
  border: none !important;
}

#qr-reader video {
  border-radius: var(--radius-lg);
}

#qr-reader__scan_region {
  min-height: 280px;
}

#qr-reader__dashboard {
  padding: 12px !important;
}

#qr-reader__dashboard button {
  padding: 10px 20px !important;
  background: var(--primary-600) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-sm) !important;
  font-family: 'Inter', sans-serif !important;
  font-weight: 600 !important;
  cursor: pointer !important;
}

/* ---- Manual Search ---- */
.manual-search-wrap {
  position: relative;
}

.manual-search-wrap .search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

.manual-search-wrap .form-input {
  padding: 16px 16px 16px 50px;
  font-size: 1rem;
  border-radius: var(--radius-md);
  background: var(--input-bg);
}

.manual-search-wrap .form-input:focus {
  background: var(--input-bg);
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  max-height: 320px;
  overflow-y: auto;
  z-index: 50;
  display: none;
}

.search-results-dropdown.show {
  display: block;
  animation: slideDown 0.2s ease;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: rgba(255,255,255,0.06);
}

.search-result-item .result-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(99,102,241,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-400);
  font-size: 1rem;
  flex-shrink: 0;
  overflow: hidden;
}

.search-result-item .result-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-result-item .result-info {
  flex: 1;
  min-width: 0;
}

.search-result-item .result-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-item .result-code {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
}

/* ---- Item Detail View ---- */
.item-detail-section {
  padding: 20px 24px 40px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.item-detail-card {
  animation: slideUp 0.5s ease both;
}

.item-detail-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
}

.item-detail-header .item-name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.item-detail-header .item-code-display {
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  color: var(--primary-400);
  font-weight: 600;
}

/* Photo Gallery */
.item-photo-gallery {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.gallery-main {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
  margin-bottom: 12px;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.gallery-thumbs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.gallery-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.gallery-thumb:hover,
.gallery-thumb.active {
  border-color: var(--primary-500);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.no-photo-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
}

.no-photo-placeholder i {
  font-size: 2.5rem;
}

.no-photo-placeholder span {
  font-size: 0.85rem;
}

/* Info Grid */
.item-info-grid {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-item.full-width {
  grid-column: 1 / -1;
}

.info-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.info-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* QR Section in detail */
.item-qr-section {
  padding: 24px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.item-qr-section canvas,
.item-qr-section img {
  margin: 0 auto;
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border: 1px solid var(--glass-border);
}

.item-qr-section .qr-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---- Footer ---- */
.viewer-footer {
  margin-top: auto;
  padding: 24px;
  text-align: center;
  border-top: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}

.viewer-footer p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.viewer-footer a {
  color: var(--primary-400);
  font-weight: 600;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .viewer-hero {
    padding: 40px 20px 28px;
  }
  .viewer-hero h1 {
    font-size: 1.5rem;
  }
  .viewer-search-section {
    padding: 0 16px;
  }
  .item-info-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px;
  }
  .item-detail-section {
    padding: 16px 16px 40px;
  }
}