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

:root {
  --bg: #fafafa;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --border: #e2e2e2;
  --border-focus: #888;
  --text: #1a1a1a;
  --text-secondary: #666;
  --text-muted: #999;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --danger-hover: #b91c1c;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
  --radius: 8px;
  --radius-sm: 4px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Fira Code", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f0f0f;
    --bg-card: #1a1a1a;
    --bg-input: #222;
    --border: #333;
    --border-focus: #666;
    --text: #e5e5e5;
    --text-secondary: #aaa;
    --text-muted: #666;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --success: #22c55e;
    --success-bg: #052e16;
    --danger: #ef4444;
    --danger-bg: #450a0a;
    --danger-hover: #f87171;
    --warning: #f59e0b;
    --warning-bg: #451a03;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
  }
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-input: #222;
  --border: #333;
  --border-focus: #666;
  --text: #e5e5e5;
  --text-secondary: #aaa;
  --text-muted: #666;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --success: #22c55e;
  --success-bg: #052e16;
  --danger: #ef4444;
  --danger-bg: #450a0a;
  --danger-hover: #f87171;
  --warning: #f59e0b;
  --warning-bg: #451a03;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

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

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

.header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.3px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover {
  color: var(--text);
  background: var(--bg);
  text-decoration: none;
}

.nav-link.active {
  color: var(--text);
  font-weight: 500;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.card + .card { margin-top: 12px; }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  font-family: inherit;
  line-height: 1.4;
}

.btn:hover { border-color: var(--border-focus); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

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

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger:hover { background: var(--danger-bg); }

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Forms */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--text-secondary);
}

.input {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.15s;
}

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

.input-mono {
  font-family: var(--font-mono);
  font-size: 13px;
}

select.input {
  appearance: auto;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-muted { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }

/* Table */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr:hover td {
  background: var(--bg);
}

tr.expandable { cursor: pointer; }

.expanded-row td {
  background: var(--bg);
  padding: 12px;
}

.expanded-detail {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 12px;
}

.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger); }
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid var(--success); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning); }

/* Toggle */
.toggle {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  cursor: pointer;
}

.toggle input { display: none; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 10px;
  transition: background 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle input:checked + .toggle-slider {
  background: var(--accent);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(16px);
}

/* DB row */
.db-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.db-row:last-child { border-bottom: none; }

.db-info { flex: 1; min-width: 0; }

.db-name {
  font-weight: 600;
  font-size: 14px;
}

.db-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.db-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Active backup progress */
.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
}

.page-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
}

.page-btn:hover { border-color: var(--border-focus); }
.page-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

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

.filter-row .input {
  width: auto;
  min-width: 140px;
}

/* Section */
.section {
  margin-bottom: 24px;
}

.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

/* Page padding */
.page {
  padding: 20px 0 40px;
}

/* Login centered */
.center-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 360px;
}

.setup-card {
  width: 100%;
  max-width: 540px;
}

/* Error log */
.error-log {
  margin-top: 6px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--danger) 8%, var(--card-bg));
  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--danger);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 120px;
  overflow-y: auto;
  line-height: 1.5;
}

/* Active backup card */
.backup-active-card {
  border: 1px solid var(--accent);
  background: var(--bg);
  overflow: hidden;
}
.backup-active-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}
.backup-active-name {
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-mono);
}
.backup-active-type {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}
.backup-active-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.backup-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}
.backup-progress-bar {
  height: 3px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 14px;
}
.backup-progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  animation: progress-slide 1.8s ease-in-out infinite;
  width: 40%;
}
@keyframes progress-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}
.backup-active-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  text-align: center;
}
.backup-active-stat {
  padding: 8px;
  border-radius: 6px;
  background: var(--card-bg);
  border: 1px solid var(--border);
}
.backup-active-stat-value {
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-mono);
}
.backup-active-stat-label {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Loading */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .header-nav { gap: 4px; }
  .nav-link { padding: 6px 8px; font-size: 12px; }
  td, th { padding: 8px 8px; }
  .container { padding: 0 12px; }
  .db-row { flex-direction: column; align-items: flex-start; }
  .db-actions { width: 100%; justify-content: flex-start; margin-top: 8px; }
}

/* Utility */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-mono { font-family: var(--font-mono); font-size: 13px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.hidden { display: none !important; }