:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #555555;
  --border: #222222;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

#app {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
}

.logo h1 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.logo .subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}

.nav {
  margin-top: 32px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.15s;
  font-size: 14px;
}

.nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent);
  color: white;
}

.nav-item .icon {
  font-size: 16px;
}

.stats {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 16px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
}

/* Main */
.main {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
}

.header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.search-box {
  flex: 1;
  display: flex;
  gap: 8px;
}

.search-box input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.content {
  flex: 1;
  padding: 24px;
}

/* Buttons */
.btn {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn:hover {
  background: var(--bg-secondary);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

/* Archive List */
.archive-list {
  display: grid;
  gap: 12px;
}

.archive-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all 0.15s;
}

.archive-card:hover {
  border-color: var(--accent);
}

.archive-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.archive-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
}

.archive-title:hover {
  color: var(--accent);
}

.archive-site {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.archive-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.archive-tags {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.tag {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  color: var(--text-secondary);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
}

.timeline-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* Categories */
.category-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.category-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all 0.15s;
}

.category-card:hover {
  border-color: var(--accent);
}

.category-name {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 4px;
}

.category-count {
  font-size: 12px;
  color: var(--text-muted);
}

/* Tags */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-item {
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}

.tag-item:hover {
  border-color: var(--accent);
}

.tag-count {
  color: var(--text-muted);
  margin-left: 4px;
}

/* Dialog */
.dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 0;
  max-width: 480px;
  width: 90%;
}

.dialog::backdrop {
  background: rgba(0, 0, 0, 0.7);
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.dialog-header h2 {
  font-size: 16px;
  font-weight: 500;
}

.dialog-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
}

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

dialog form {
  padding: 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 14px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 1000;
  animation: slideIn 0.2s ease;
}

.toast.success {
  border-color: var(--success);
}

.toast.error {
  border-color: var(--error);
}

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Media Grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.media-item {
  aspect-ratio: 16/9;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.media-item img,
.media-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-type-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 2px 8px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 4px;
  font-size: 11px;
  color: white;
}