/* ============================================
   灵感 — 全局样式
   Dark theme · Responsive · Clean
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --bg-elevated: #1a1b26;
  --bg-hover: #24253b;
  --border: #2a2b3d;
  --border-hover: #7c3aed;
  --text: #e1e2e9;
  --text-secondary: #9d9fb8;
  --text-muted: #636688;
  --accent: #7c3aed;
  --accent-glow: rgba(124, 58, 237, 0.25);
  --accent-soft: rgba(124, 58, 237, 0.12);
  --green: #34d399;
  --green-bg: rgba(52, 211, 153, 0.12);
  --amber: #fbbf24;
  --amber-bg: rgba(251, 191, 36, 0.12);
  --gray: #6b7280;
  --gray-bg: rgba(107, 114, 128, 0.12);
  --red: #f87171;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

img, video {
  max-width: 100%;
  display: block;
}

/* --- Layout --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.site-title span {
  color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.site-footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.filter-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 9999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-soft);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.filter-btn svg {
  vertical-align: middle;
  margin-right: 4px;
}

.filter-btn .count {
  margin-left: 4px;
  font-size: 0.75rem;
  opacity: 0.7;
}

/* --- Card Category --- */
.card-category {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  padding: 0;
}
.card-category svg {
  opacity: 0.6;
}

/* --- Empty State --- */


/* --- Search --- */
.search-wrap {
  position: relative;
  margin-bottom: 24px;
}

.search-input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.925rem;
  font-family: var(--font);
  transition: all var(--transition);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 20px;
  height: 20px;
}

/* --- Results Info --- */
.results-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.results-info strong {
  color: var(--text);
}

/* --- Card Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* --- Card --- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  animation: cardIn 0.45s ease both;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.15);
}

.card:active {
  transform: translateY(-2px);
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-body {
  flex: 1;
  min-width: 0;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.4;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
  grid-column: 1 / -1;
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 0.95rem;
}

/* ============================================
   Detail Pages — Shared
   ============================================ */

.detail-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Toolbar --- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  min-height: 56px;
}

.toolbar .back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  text-decoration: none;
}

.toolbar .back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.toolbar .toolbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toolbar .toolbar-action {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  white-space: nowrap;
}

.toolbar .toolbar-action:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* --- Detail Content Area --- */
.detail-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Page detail */
.page-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-viewer iframe {
  flex: 1;
  border: none;
  width: 100%;
  min-height: calc(100vh - 56px);
}

/* Image detail */
.image-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px;
  gap: 24px;
}

.image-viewer img {
  max-width: 100%;
  max-height: 65vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: contain;
}

.image-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.image-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.image-meta strong {
  color: var(--text);
}

/* Video detail */
.video-viewer {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.video-viewer video {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  outline: none;
}

/* SVG detail */
.svg-viewer {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.svg-viewer .svg-container {
  max-width: 100%;
  max-height: 65vh;
}

.svg-viewer .svg-container svg,
.svg-viewer .svg-container object {
  max-width: 100%;
  max-height: 65vh;
}

/* --- Source Code Panel --- */
.source-panel {
  display: none;
  border-top: 1px solid var(--border);
  background: #0d0e14;
  max-height: 50vh;
  overflow: auto;
}

.source-panel.visible {
  display: block;
}

.source-panel pre {
  margin: 0;
  padding: 20px;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow: auto;
}

.source-panel code {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", "SF Mono", "Menlo", "Consolas", monospace;
}

/* --- Not-found / Error in detail --- */
.detail-error {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 48px;
  color: var(--text-muted);
  text-align: center;
}

.detail-error .error-icon {
  font-size: 3rem;
  opacity: 0.5;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .header-inner {
    height: 56px;
  }

  .site-main {
    padding: 16px;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .card {
    padding: 18px;
  }

  .filter-bar {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .toolbar {
    padding: 10px 14px;
    gap: 8px;
  }

  .toolbar .toolbar-title {
    font-size: 0.9rem;
  }

  .image-viewer,
  .video-viewer,
  .svg-viewer {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 52px;
  }

  .site-title {
    font-size: 1.05rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .toolbar {
    gap: 6px;
  }

  .toolbar .toolbar-action {
    padding: 6px 10px;
    font-size: 0.78rem;
  }
}