:root {
  color-scheme: dark;
  --bg: #0f1419;
  --panel: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent-soft: #1f6feb;
  --danger: #f85149;
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); }

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
}

.login-card h1 { margin: 0 0 .25rem; }

.muted { color: var(--muted); }

.alert {
  background: rgba(248, 81, 73, .12);
  border: 1px solid rgba(248, 81, 73, .35);
  color: #ffb4af;
  padding: .75rem 1rem;
  border-radius: 8px;
  margin: 1rem 0;
}

label {
  display: grid;
  gap: .35rem;
  margin-top: 1rem;
  font-size: .95rem;
}

input {
  width: 100%;
  padding: .65rem .75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0d1117;
  color: var(--text);
}

input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  padding: 0;
  margin: 0;
  border-radius: 4px;
  accent-color: var(--accent);
  cursor: pointer;
  vertical-align: middle;
}

button, .library-option {
  cursor: pointer;
}

.login-card button,
.search-form button {
  margin-top: 1.25rem;
  width: 100%;
  padding: .75rem 1rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent-soft);
  color: white;
  font-weight: 600;
}

.search-bulk-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: 1rem 0;
}

.progress-bar {
  position: relative;
  width: 100%;
  height: 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 1rem 0;
  overflow: hidden;
}

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

.progress-bar span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 600;
  z-index: 1;
  text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  padding: 0.75rem;
  border-top: 1px solid var(--border);
}

.pagination-controls button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

#search-results tbody tr.selected {
  background: rgba(88, 166, 255, 0.12);
  border-left: 3px solid var(--accent);
}

#search-results tbody tr.selected:hover {
  background: rgba(88, 166, 255, 0.18);
}

.app-page {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  padding: 1rem;
  gap: 1rem;
  min-height: 0;
  overflow: hidden;
}

.sidebar-header {
  display: grid;
  gap: .25rem;
  flex-shrink: 0;
}

.sidebar-nav {
  display: grid;
  gap: .5rem;
  min-height: 0;
  overflow: visible;
}

.nav-group {
  position: relative;
}

.nav-item {
  text-align: left;
  padding: .75rem 1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  width: 100%;
}

.nav-item-libraries {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 0 .35rem;
}

.nav-item-label {
  grid-column: 1;
  grid-row: 1;
  font-weight: 600;
}

.nav-item-current {
  grid-column: 1;
  grid-row: 2;
  font-size: .82rem;
}

.nav-chevron {
  grid-column: 2;
  grid-row: 1 / span 2;
  color: var(--muted);
  transition: transform .15s ease;
}

.nav-item.dropdown-open .nav-chevron {
  transform: rotate(180deg);
}

.nav-item.active,
.nav-item:hover {
  border-color: var(--border);
  background: #0d1117;
}

.sidebar-footer {
  margin-top: auto;
  flex-shrink: 0;
}

.library-dropdown {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + .35rem);
  z-index: 20;
  max-height: min(60vh, 420px);
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0d1117;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .45);
}

.library-dropdown.open {
  display: grid;
}

.library-option {
  text-align: left;
  padding: .65rem .85rem;
  border: 0;
  border-bottom: 1px solid rgba(48, 54, 61, .6);
  background: transparent;
  color: inherit;
}

.library-option:last-child {
  border-bottom: 0;
}

.library-option:hover {
  background: rgba(88, 166, 255, .08);
}

.library-option.selected {
  background: rgba(88, 166, 255, .12);
  box-shadow: inset 3px 0 0 var(--accent);
}

.library-name { display: block; font-weight: 600; font-size: .92rem; }
.library-meta { display: block; font-size: .78rem; color: var(--muted); margin-top: .15rem; }

.library-option.offline {
  opacity: .45;
  cursor: not-allowed;
}

.library-option.offline .library-meta::after {
  content: " · offline";
  color: #f85149;
}

.library-option.starting {
  opacity: .7;
}

.library-option.starting .library-meta::after {
  content: " · starting…";
  color: #d29922;
}

.content {
  min-width: 0;
  height: 100vh;
  overflow: hidden;
  position: relative;
  background: #fff;
}

.panel {
  display: none;
  height: 100%;
  overflow: auto;
  padding: 1.25rem 1.5rem 2rem;
  background: var(--bg);
}

.panel.active { display: block; }

.panel-header h2 { margin: 0 0 .25rem; }

.library-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: white;
}

.library-frame.hidden { display: none; }
.progress-bar.hidden,
.pagination-controls.hidden,
.results-table.hidden { display: none; }

.nav-item.import-running {
  background: #3d1f1f;
  border-color: #f85149;
  color: #ffb4ae;
}

.nav-item.import-running:hover {
  background: #5a2424;
}

.nav-item:disabled {
  opacity: .6;
  cursor: wait;
}

.danger-button {
  border: 1px solid var(--danger);
  border-radius: 6px;
  padding: .4rem .65rem;
  background: rgba(248, 81, 73, .12);
  color: #ffb4af;
}

.search-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.search-form button {
  width: auto;
  margin-top: 0;
}

.table-wrap { overflow: auto; }

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}

.results-table th,
.results-table td {
  border-bottom: 1px solid var(--border);
  padding: .65rem .75rem;
  text-align: left;
  vertical-align: top;
}

.results-table th.select-col,
.results-table td:first-child:has(input[type="checkbox"]) {
  width: 2.5rem;
  text-align: center;
}

.results-table tbody tr:hover {
  background: rgba(88, 166, 255, .06);
}

@media (max-width: 900px) {
  .app-page {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    height: 100vh;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .library-dropdown {
    position: static;
    max-height: 40vh;
    margin-top: .35rem;
  }
}