:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface2: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #7d8590;
  --accent: #238636;
  --accent-hover: #2ea043;
  --blue: #1f6feb;
  --blue-hover: #388bfd;
  --red: #da3633;
  --yellow: #d29922;
  --purple: #8957e5;
  --success: #3fb950;
  --warning: #d29922;
  --error: #f85149;
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* Layout */
.app { display: flex; flex-direction: column; min-height: 100vh; }

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.logo-sub { color: var(--text-muted); font-weight: 400; font-size: 12px; }

nav { display: flex; gap: 4px; margin-left: auto; }

.nav-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font);
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-btn:hover { background: var(--surface2); color: var(--text); }
.nav-btn.active { background: var(--surface2); color: var(--text); }

main { flex: 1; padding: 24px; max-width: 1200px; width: 100%; margin: 0 auto; }

/* Tab panels */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-header h2 { font-size: 14px; font-weight: 600; }
.card-body { padding: 18px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-blue { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-blue:hover:not(:disabled) { background: var(--blue-hover); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover:not(:disabled) { background: #ff4444; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover:not(:disabled) { background: var(--surface2); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Container grid */
.container-grid {
  display: grid;
  gap: 10px;
}

.container-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.container-item:hover { border-color: var(--blue); }
.container-item.selected { border-color: var(--blue); background: rgba(31, 111, 235, 0.08); }

.container-check {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.container-item.selected .container-check {
  background: var(--blue);
  border-color: var(--blue);
}

.container-item.selected .container-check::after {
  content: '✓';
  color: white;
  font-size: 11px;
  font-weight: 700;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.running { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.exited { background: var(--text-muted); }
.status-dot.paused { background: var(--yellow); }

.container-name { font-weight: 600; flex: 1; }
.container-image { color: var(--text-muted); font-size: 12px; }
.container-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.badge.db { background: rgba(137, 87, 229, 0.15); border-color: var(--purple); color: var(--purple); }
.badge.vol { background: rgba(31, 111, 235, 0.1); border-color: var(--blue); color: var(--blue); }

/* Backup list */
.backup-list { display: grid; gap: 10px; }

.backup-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.backup-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.backup-name { font-weight: 600; flex: 1; }

.backup-meta {
  display: flex;
  gap: 16px;
  color: var(--text-muted);
  font-size: 12px;
  flex-wrap: wrap;
}

.backup-meta span { display: flex; align-items: center; gap: 4px; }

.backup-actions { display: flex; gap: 6px; }

/* Progress & logs */
.progress-bar-container {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--accent));
  border-radius: 3px;
  transition: width 0.3s ease;
}

.log-viewer {
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 12px;
  line-height: 1.7;
  max-height: 380px;
  overflow-y: auto;
}

.log-line { display: flex; gap: 10px; }
.log-ts { color: #444d56; flex-shrink: 0; }
.log-level { flex-shrink: 0; width: 56px; }
.log-level.info { color: var(--blue-hover); }
.log-level.success { color: var(--success); }
.log-level.warning { color: var(--warning); }
.log-level.error { color: var(--error); }
.log-level.progress { color: var(--purple); }
.log-msg { color: var(--text); }

/* Job status badge */
.job-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.job-status.pending { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }
.job-status.running { background: rgba(31, 111, 235, 0.15); color: var(--blue-hover); }
.job-status.success { background: rgba(63, 185, 80, 0.15); color: var(--success); }
.job-status.failed { background: rgba(248, 81, 73, 0.15); color: var(--error); }

/* Form elements */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px 0;
}

.form-check input[type=checkbox] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--blue);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 { font-size: 15px; }

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}

.modal-close:hover { background: var(--surface2); color: var(--text); }

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Alerts */
.alert {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid;
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.alert.info { background: rgba(31, 111, 235, 0.08); border-color: var(--blue); color: #8ab4f8; }
.alert.success { background: rgba(63, 185, 80, 0.08); border-color: var(--success); color: var(--success); }
.alert.warning { background: rgba(210, 153, 34, 0.08); border-color: var(--yellow); color: var(--yellow); }
.alert.error { background: rgba(248, 81, 73, 0.08); border-color: var(--error); color: var(--error); }

/* Utility */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.ml-auto { margin-left: auto; }
.mb-4 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 12px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}
.empty-state .icon { font-size: 40px; margin-bottom: 12px; }

/* Restore wizard steps */
.wizard-steps {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.wizard-step {
  flex: 1;
  padding: 10px 14px;
  text-align: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface2);
  border-right: 1px solid var(--border);
}

.wizard-step:last-child { border-right: none; }
.wizard-step.active { background: rgba(31, 111, 235, 0.15); color: var(--blue-hover); }
.wizard-step.done { background: rgba(63, 185, 80, 0.08); color: var(--success); }

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Responsive */
@media (max-width: 640px) {
  main { padding: 16px; }
  .backup-meta { gap: 8px; }
  header { padding: 0 16px; }
}

/* ─── Container filters & problems ─── */
.container-item.problem { border-color: var(--red); }
.container-item.problem:hover { border-color: var(--red); box-shadow: 0 0 0 1px var(--red); }

/* ─── Light theme ─── */
[data-theme="light"] {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --surface2: #f0f2f5;
  --border: #d0d7de;
  --text: #1f2328;
  --text-muted: #59636e;
  --accent: #1a7f37;
  --accent-hover: #2da44e;
  --blue: #0969da;
  --blue-hover: #218bff;
  --red: #cf222e;
  --yellow: #9a6700;
  --purple: #8250df;
  --success: #1a7f37;
  --warning: #9a6700;
  --error: #cf222e;
}

/* ─── Monitor bars ─── */
.stat-bar-track { background: var(--surface2); border-radius: 4px; height: 8px; overflow: hidden; }
.stat-bar { height: 100%; border-radius: 4px; transition: width 0.4s; }