/* ══════════════════════════════════════════════
   器材檢索表 — Style Sheet
   ══════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────── */
:root {
  --color-bg: #f0f2f8;
  --color-surface: #ffffff;
  --color-text: #1a1d26;
  --color-text-secondary: #5f6578;
  --color-text-tertiary: #8b90a0;
  --color-border: #e2e5f0;
  --color-border-light: #eef0f6;
  --color-accent: #4f5dd6;
  --color-accent-hover: #424fbd;
  --color-accent-soft: #eef0ff;
  --color-accent-text: #ffffff;

  --color-available: #16a34a;
  --color-borrowed: #ea580c;
  --color-maintenance: #dc2626;
  --color-disabled: #9ca3af;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  --shadow-xs: 0 1px 2px rgba(26,29,38,0.04);
  --shadow-sm: 0 1px 4px rgba(26,29,38,0.06);
  --shadow-md: 0 4px 16px rgba(26,29,38,0.08);
  --shadow-lg: 0 8px 32px rgba(26,29,38,0.12);
  --shadow-card-hover: 0 8px 24px rgba(26,29,38,0.12);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;

  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  /* Category colors */
  --cat-adapter: #6366f1;
  --cat-camera: #0891b2;
  --cat-lighting: #f59e0b;
  --cat-audio: #10b981;
  --cat-accessory: #8b5cf6;
  --cat-mount: #64748b;
  --cat-default: #94a3b8;
}

/* ── Reset / Base ──────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── App Container ─────────────────────────── */
.app {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-lg);
}

/* ── Header ────────────────────────────────── */
.app-header {
  margin-bottom: var(--space-lg);
}
.app-header h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.app-subtitle {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-top: 6px;
}

/* ── Panel ─────────────────────────────────── */
.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-md);
}

/* ── Toolbar ───────────────────────────────── */
.toolbar {
  display: grid;
  grid-template-columns: 1.6fr 180px 180px;
  gap: var(--space-md);
  align-items: center;
}

/* ── Search ────────────────────────────────── */
.search-wrap {
  position: relative;
}
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
  display: flex;
  align-items: center;
}
.search-icon svg {
  width: 16px;
  height: 16px;
}

/* ── Form Elements ─────────────────────────── */
input, select, button {
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 10px 14px;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
input:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(79,93,214,0.12);
}
#searchInput {
  padding-left: 40px;
}
select {
  cursor: pointer;
  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='%235f6578' stroke-width='2.5' 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 12px center;
  padding-right: 32px;
}

/* ── Mode Toggle ───────────────────────────── */
.mode-toggle {
  display: inline-flex;
  gap: 6px;
  margin-top: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 3px;
}
.mode-btn {
  width: auto;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.mode-btn:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.6);
}
.mode-btn.active {
  background: var(--color-surface);
  color: var(--color-accent);
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}

/* ── Stats ─────────────────────────────────── */
.stats {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}
.stat {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  min-width: 110px;
}
.stat .label {
  color: var(--color-text-tertiary);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat .value {
  font-size: 22px;
  font-weight: 700;
  margin-top: 2px;
  color: var(--color-text);
}

/* ── Category / Location Tabs ──────────────── */
.tab-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: var(--space-md);
  scrollbar-width: thin;
}
.tab-bar::-webkit-scrollbar {
  height: 4px;
}
.tab-bar::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}
.tab {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  flex: 0 0 auto;
  width: auto;
  transition: all var(--transition-fast);
  color: var(--color-text-secondary);
}
.tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-soft);
}
.tab.active {
  background: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent);
  font-weight: 600;
}
.tab small {
  opacity: 0.75;
  margin-left: 4px;
  font-weight: 400;
}

/* ── Section ───────────────────────────────── */
.section {
  margin-top: var(--space-lg);
}
.section:first-child {
  margin-top: 0;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.section-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.section-meta {
  color: var(--color-text-tertiary);
  font-size: 13px;
}

/* ── Card Grid ─────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

/* ── Item Card ─────────────────────────────── */
.item-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: row;
  cursor: pointer;
  transition: all var(--transition-normal);
  border-left: 4px solid var(--cat-default);
  position: relative;
  overflow: hidden;
}
.item-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border);
}
.item-card:active {
  transform: translateY(0);
}

/* Category color borders */
.item-card[data-category="轉接頭"] { border-left-color: var(--cat-adapter); }
.item-card[data-category="相機"] { border-left-color: var(--cat-camera); }
.item-card[data-category="燈光"] { border-left-color: var(--cat-lighting); }
.item-card[data-category="收音"] { border-left-color: var(--cat-audio); }
.item-card[data-category="配件"] { border-left-color: var(--cat-accessory); }
.item-card[data-category="支架"] { border-left-color: var(--cat-mount); }
.item-card[data-category="鍵盤滑鼠"] { border-left-color: #e11d48; }

/* Card Thumbnail — small uniform square, image fully visible (not cropped) */
.card-thumb {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  margin: 12px 0 12px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  align-self: flex-start;
}
.card-thumb img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  padding: 4px;
  box-sizing: border-box;
}
.card-thumb .thumb-svg {
  width: 32px;
  height: 32px;
  opacity: 0.5;
}

/* Card Body */
.card-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}
.item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.item-name {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.item-id {
  display: inline-block;
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 2px 6px;
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
}
.meta-row {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 4px;
}
.meta-label {
  color: var(--color-text-tertiary);
  font-size: 11px;
  min-width: 28px;
}
.meta-icon {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  color: var(--color-text-tertiary);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
}
.click-hint {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 16px;
  height: 16px;
  color: var(--color-border);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.item-card:hover .click-hint {
  opacity: 1;
}

/* ── Location Map ─────────────────────────── */
.location-map-wrap {
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  background: #f5f0eb;
}
.location-map-container {
  position: relative;
  width: 100%;
}
.location-map {
  width: 100%;
  height: auto;
  display: block;
}
.map-hotspot {
  position: absolute;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
}
.map-hotspot:hover {
  border-color: var(--spot-color, var(--color-accent));
  background: rgba(255,255,255,0.25);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--spot-color) 25%, transparent);
  transform: scale(1.03);
}
.map-hotspot:active {
  transform: scale(0.98);
}
.map-hotspot-label {
  font-size: 0;
  opacity: 0;
  transition: all var(--transition-fast);
  background: var(--spot-color, var(--color-accent));
  color: white;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
}
.map-hotspot:hover .map-hotspot-label {
  font-size: 11px;
  opacity: 1;
}

/* ── Empty State ───────────────────────────── */
.empty {
  padding: var(--space-2xl);
  text-align: center;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 14px;
}

/* ── Modal ─────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,29,38,0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}
.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(16px);
  transition: transform var(--transition-normal);
  position: relative;
}
.modal-overlay.is-open .modal-content {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.06);
  color: var(--color-text-secondary);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  transition: background var(--transition-fast);
}
.modal-close:hover {
  background: rgba(0,0,0,0.12);
}

/* Modal Image */
.modal-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--color-bg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.modal-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.modal-image .fallback-icon {
  width: 80px;
  height: 80px;
  color: var(--color-text-tertiary);
  opacity: 0.4;
}

/* Modal Info */
.modal-info {
  padding: var(--space-lg);
}
.modal-item-name {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px 0;
  color: var(--color-text);
}
.modal-item-id {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}
.modal-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.modal-field {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  font-size: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border-light);
}
.modal-field:last-child {
  border-bottom: none;
}
.modal-field-label {
  color: var(--color-text-tertiary);
  font-size: 13px;
  min-width: 80px;
  flex-shrink: 0;
}
.modal-field-value {
  color: var(--color-text);
}
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
}

/* ── Loading ───────────────────────────────── */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  gap: var(--space-md);
  color: var(--color-text-secondary);
}
.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Responsive ────────────────────────────── */
@media (max-width: 980px) {
  .toolbar {
    grid-template-columns: 1fr 1fr;
  }
  .toolbar .search-wrap {
    grid-column: 1 / -1;
  }
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .app-header h1 {
    font-size: 24px;
  }
}

@media (max-width: 640px) {
  .app {
    padding: 12px;
  }
  .panel {
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 10px;
  }
  .app-header {
    margin-bottom: 12px;
  }
  .app-header h1 {
    font-size: 22px;
  }
  .app-subtitle {
    font-size: 12px;
  }
  .toolbar {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .mode-toggle {
    margin-top: 8px;
  }
  .mode-btn {
    padding: 6px 12px;
    font-size: 12px;
  }
  .card-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .card-thumb {
    width: 48px;
    height: 48px;
    margin: 10px 0 10px 10px;
  }
  .card-thumb .thumb-svg {
    width: 28px;
    height: 28px;
  }
  .card-body {
    padding: 10px 12px;
    gap: 4px;
  }
  .item-name {
    font-size: 13px;
  }
  .item-id {
    font-size: 9px;
    padding: 1px 5px;
  }
  .meta-row {
    font-size: 11px;
  }
  .section {
    margin-top: var(--space-md);
  }
  .section-title {
    font-size: 15px;
  }
  .section-meta {
    font-size: 12px;
  }
  .stats {
    gap: 6px;
    margin-top: 8px;
  }
  .stat {
    padding: 6px 10px;
    min-width: 80px;
  }
  .stat .label {
    font-size: 10px;
  }
  .stat .value {
    font-size: 18px;
  }
  .tab-bar {
    gap: 6px;
    margin-bottom: 10px;
  }
  .tab {
    padding: 6px 12px;
    font-size: 12px;
  }
  .modal-overlay {
    padding: 0;
    align-items: flex-end;
  }
  .modal-content {
    max-height: 92vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  }
  .modal-image {
    aspect-ratio: 4 / 3;
  }
  .modal-info {
    padding: var(--space-md);
  }
  .modal-item-name {
    font-size: 17px;
  }
  .modal-field {
    padding: 6px 0;
    font-size: 13px;
  }
}