:root {
  --bg: #0f172a;
  --bg-surface: #1e293b;
  --bg-elevated: #263348;
  --border: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --header-h: 52px;
  --sidebar-w: 264px;
  --detail-w: 296px;
}

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

.hidden { display: none !important; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
header {
  height: var(--header-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 16px;
  flex-shrink: 0;
  z-index: 10;
}

.header-left { flex-shrink: 0; }
h1 { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; display: flex; align-items: baseline; gap: 7px; }
.header-subtitle { font-size: 11px; font-weight: 400; color: var(--text-muted); letter-spacing: 0; }

.header-center {
  flex: 1;
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
}

#conf-histogram { display: none; }

.model-status { display: flex; align-items: center; gap: 8px; white-space: nowrap; font-size: 12px; color: var(--text-muted); }
/* Highlight the ⚡ WebGPU indicator */
.model-status .gpu-badge { color: #fbbf24; font-weight: 600; }

.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.ready   { background: var(--success); }
.status-dot.loading { background: var(--warning); animation: pulse 1.4s ease-in-out infinite; }
.status-dot.error   { background: var(--danger); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Classify loading pill in header */
#classify-loading {
  display: none;
  align-items: center;
  gap: 7px;
  background: rgba(251,191,36,0.12);
  border: 1px solid rgba(251,191,36,0.3);
  border-radius: 20px;
  padding: 3px 10px 3px 7px;
  font-size: 11px;
  color: #fbbf24;
  white-space: nowrap;
}
#classify-loading.visible { display: flex; }
.classify-spinner {
  width: 13px; height: 13px;
  border: 2px solid rgba(251,191,36,0.25);
  border-top-color: #fbbf24;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Main layout ─────────────────────────────────────────────────────────── */
main {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ── Left sidebar ────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

#drop-zone {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.btn-demo {
  width: 100%;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 12px;
  padding: 5px 0;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  pointer-events: auto;
}
.btn-demo:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(59,130,246,0.06);
}
.btn-demo:disabled { opacity: 0.5; cursor: default; }

.drop-content {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 14px 10px;
  text-align: center;
  color: var(--text-muted);
  line-height: 1.5;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  pointer-events: none;
}
.drop-content svg { display: block; margin: 0 auto 8px; }

#drop-zone.drag-over .drop-content,
#drop-zone:hover .drop-content {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(59, 130, 246, 0.06);
}

#file-input { display: none; }

#image-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

#image-list::-webkit-scrollbar { width: 5px; }
#image-list::-webkit-scrollbar-track { background: transparent; }
#image-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

#patch-preview {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  padding: 8px;
}

#patch-preview canvas {
  display: block;
  width: 100%;
  border-radius: 3px;
  image-rendering: pixelated;
}

#patch-preview-label {
  font-size: 11px;
  font-family: monospace;
  font-weight: 700;
  text-align: center;
  padding-top: 5px;
  letter-spacing: 0.04em;
}

.image-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  background: var(--bg-elevated);
  border: 1px solid transparent;
  transition: border-color 0.15s, background 0.15s;
  position: relative;
}
.image-item:hover  { border-color: rgba(59, 130, 246, 0.5); }
.image-item.active { border-color: var(--accent); background: rgba(59, 130, 246, 0.1); }
.image-item.error  { border-color: rgba(239, 68, 68, 0.5); }
.image-item.uploading { opacity: 0.6; cursor: default; }
.image-item.pending-classify .image-tags::after { content: 'Click to classify'; font-size: 9px; color: var(--text-muted); background: rgba(255,255,255,0.07); border: 1px solid var(--border); border-radius: 3px; padding: 1px 5px; margin-left: 4px; }
.image-item.classifying .progress-fill { animation: classify-pulse 1.2s ease-in-out infinite; }
@keyframes classify-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.image-thumb {
  width: 38px; height: 38px;
  border-radius: 4px; overflow: hidden; flex-shrink: 0;
  background: var(--bg);
}
.image-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.image-meta { flex: 1; min-width: 0; }
.image-name { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 4px; }

.progress-bar { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; margin-bottom: 3px; }
.progress-fill { height: 100%; background: var(--success); border-radius: 2px; transition: width 0.3s ease; }

.image-progress { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-muted); }

.btn-delete {
  position: absolute; top: 4px; right: 4px;
  width: 18px; height: 18px;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 11px;
  display: none; align-items: center; justify-content: center;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
.image-item:hover .btn-delete { display: flex; }
.btn-delete:hover { color: var(--danger); background: rgba(239, 68, 68, 0.12); }

.upload-spinner {
  width: 20px; height: 20px; flex-shrink: 0;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-icon { color: var(--danger); flex-shrink: 0; }

/* ── Canvas section ──────────────────────────────────────────────────────── */
#cover-summary {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 4px 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
#cover-summary.hidden { display: none; }
.cover-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-right: 2px; flex-shrink: 0; }
.cover-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 7px;
  font-size: 11px;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
  font-family: inherit;
  color: inherit;
}
.cover-chip:hover { border-color: var(--accent); background: #1e3a5f; }
.cover-chip.active {
  border-color: var(--accent);
  background: #1e3a5f;
  box-shadow: 0 0 0 1px var(--accent);
}
.cover-chip.active .cover-code { color: #93c5fd; }
.cover-chip.active .cover-pct  { color: #bfdbfe; }
.cover-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cover-code { font-weight: 600; color: var(--text); }
.cover-pct  { color: var(--text-muted); }
.cover-more { font-size: 11px; color: var(--text-muted); font-style: italic; }
.cover-confirm-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #064e3b;
  border: 1px solid var(--success);
  border-radius: 3px;
  padding: 2px 8px;
  font-size: 11px;
  font-family: inherit;
  color: #6ee7b7;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s;
  margin-left: 4px;
}
.cover-confirm-btn:hover { background: #065f46; }
#canvas-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

#canvas-toolbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 7px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

.filter-label { font-size: 11px; color: var(--text-muted); margin-right: 2px; }

.filter-group { display: flex; align-items: center; gap: 4px; }

.filter-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 500; }
.filter-btn:hover:not(.active) { border-color: var(--accent); color: var(--text); }

.toolbar-right { display: flex; align-items: center; gap: 10px; }

.batch-confirm-group { display: flex; align-items: center; gap: 3px; }
.batch-conf-label { font-size: 12px; color: var(--text-muted); }
.batch-conf-input {
  width: 42px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 3px 4px;
  border-radius: 4px;
  font-size: 12px;
  text-align: center;
}
.batch-conf-input:focus { outline: none; border-color: var(--accent); }

.toggle-label {
  display: flex; align-items: center; gap: 5px;
  cursor: pointer; font-size: 12px; color: var(--text-muted);
  user-select: none;
}
.toggle-label input { cursor: pointer; accent-color: var(--accent); }

.overlay-mode-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
}
.overlay-mode-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 4px 10px;
  cursor: pointer;
  font-size: 12px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.overlay-mode-btn + .overlay-mode-btn { border-left: 1px solid var(--border); }
.overlay-mode-btn.active  { background: var(--bg-elevated); color: var(--text); }
.overlay-mode-btn:hover:not(.active) { color: var(--text); }

.btn-tool {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: border-color 0.15s;
}
.btn-tool:hover { border-color: var(--accent); }

#canvas-container {
  flex: 1;
  position: relative;
  background: #080c14;
  overflow: hidden;
}

#image-canvas, #overlay-canvas {
  position: absolute;
  top: 0; left: 0;
  /* size is set via JS */
}
#overlay-canvas { cursor: default; }
#overlay-canvas:active { cursor: grabbing; }

#canvas-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  pointer-events: none;
  font-size: 14px;
}
#canvas-placeholder.hidden { display: none; }

/* ── Detail sidebar ──────────────────────────────────────────────────────── */
#detail-sidebar {
  width: var(--detail-w);
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.detail-sidebar-header {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.detail-sidebar-header h3 { font-size: 13px; font-weight: 600; }

.export-btns { display: flex; gap: 5px; }

.btn-sm {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 3px 9px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.15s;
}
.btn-sm:hover { color: var(--text); border-color: var(--accent); }

#point-detail {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px;
  min-height: 0;
}
#point-detail::-webkit-scrollbar { width: 5px; }
#point-detail::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.hint { color: var(--text-muted); text-align: center; padding: 24px 0; line-height: 1.6; }

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.point-num { font-size: 14px; font-weight: 600; }
.point-coords { font-size: 11px; color: var(--text-muted); font-family: 'SF Mono', Menlo, monospace; }

.detail-status {
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
}
.status-confirmed    { background: rgba(16, 185, 129, 0.12); color: #34d399; }
.status-unconfirmed  { background: rgba(245, 158, 11, 0.12);  color: #fbbf24; }
.status-unclassified { background: rgba(107, 114, 128, 0.12); color: #9ca3af; }

.predictions-header {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 5px;
}

.prediction-row {
  display: grid;
  grid-template-columns: 16px 46px 1fr auto auto;
  align-items: center;
  gap: 5px;
  padding: 5px 7px;
  border-radius: 5px;
  margin-bottom: 3px;
  background: var(--bg-elevated);
  border: 1px solid transparent;
  transition: border-color 0.1s;
}
.prediction-row.is-top { border-color: var(--accent); }
.prediction-row.is-confirmed { border-color: var(--success); background: rgba(16, 185, 129, 0.07); }
.prediction-row:hover { border-color: rgba(59, 130, 246, 0.5); }

.pred-rank { font-size: 10px; color: var(--text-muted); text-align: right; }
.pred-code { font-family: 'SF Mono', Menlo, monospace; font-size: 11px; font-weight: 700; }
.pred-label { font-size: 11px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pred-score { font-size: 11px; font-family: monospace; white-space: nowrap; color: var(--text-muted); }

.btn-use {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 10px;
  white-space: nowrap;
  transition: all 0.1s;
}
.btn-use:hover { color: var(--text); border-color: var(--accent); }

.no-predictions { color: var(--text-muted); font-size: 12px; padding: 6px 0; }

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.btn-primary {
  flex: 1;
  background: var(--accent); border: none; color: #fff;
  padding: 7px 12px; border-radius: 5px;
  cursor: pointer; font-size: 12px; font-weight: 500;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  flex: 1;
  background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text);
  padding: 7px 12px; border-radius: 5px;
  cursor: pointer; font-size: 12px;
  transition: border-color 0.15s;
}
.btn-secondary:hover { border-color: var(--accent); }

.btn-ghost {
  background: none; border: 1px solid var(--border); color: var(--text-muted);
  padding: 7px 12px; border-radius: 5px;
  cursor: pointer; font-size: 12px;
  transition: all 0.15s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-muted); }

kbd {
  display: inline-block;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 3px; padding: 1px 5px;
  font-family: 'SF Mono', Menlo, monospace; font-size: 10px;
}

/* ── Keyboard hints ──────────────────────────────────────────────────────── */
.keyboard-hints {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.hints-title {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 6px;
}
.hint-row {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 11px; margin-bottom: 4px;
}
.hint-row span { color: var(--text-muted); }

/* ── Legend ──────────────────────────────────────────────────────────────── */
.legend {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.legend-title {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 6px;
}
.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px 8px;
}
.legend-item { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-muted); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }

#histogram-panel { display: none; }
#histogram-panel.has-data { display: block; }
#conf-histogram {
  display: block;
  width: 100%;
  border-radius: 3px;
  background: rgba(255,255,255,0.04);
  cursor: default;
}
.histogram-hint { font-weight: 400; text-transform: none; letter-spacing: 0; opacity: 0.65; }

/* ── Upload settings ─────────────────────────────────────────────────────── */
.upload-settings {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.us-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.us-label {
  font-size: 11px;
  color: var(--text-muted);
  width: 64px;
  white-space: nowrap;
  flex-shrink: 0;
}

.us-select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  flex: 1;
}
.us-select:focus { outline: none; border-color: var(--accent); }

.preset-btns { display: flex; flex-wrap: wrap; gap: 3px; }

.preset-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.12s;
}
.preset-btn:hover { border-color: var(--accent); color: var(--text); }
.preset-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.placement-toggle { display: flex; gap: 3px; }
.placement-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.12s;
}
.placement-btn:hover { border-color: var(--accent); color: var(--text); }
.placement-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.custom-grid-inputs { display: flex; align-items: center; gap: 4px; }

.us-num {
  width: 46px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 11px;
  text-align: center;
}
.us-num:focus { outline: none; border-color: var(--accent); }
.us-x { font-size: 11px; color: var(--text-muted); }

#reclassify-row { padding-top: 2px; }
.btn-reclassify {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.12s;
}
.btn-reclassify:hover:not(:disabled) { border-color: var(--accent); color: var(--text); border-style: solid; }
.btn-reclassify:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Image tags ─────────────────────────────────────────────────────────── */
.image-tags {
  display: flex;
  gap: 4px;
  margin-bottom: 3px;
  flex-wrap: wrap;
}

.tag-model, .tag-grid {
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 3px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.tag-model { background: rgba(59,130,246,0.18); color: #93c5fd; }
.tag-grid  { background: rgba(16,185,129,0.14); color: #6ee7b7; }

.error-msg { color: var(--danger) !important; font-size: 10px; }

/* ── Filter toolbar extensions ───────────────────────────────────────────── */
#canvas-toolbar {
  flex-wrap: wrap;
  gap: 6px;
  row-gap: 5px;
}

.label-filter-wrap { position: relative; }

.label-filter-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 200;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 240px;
  max-height: 300px;
  overflow: hidden;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.label-filter-dropdown.open { display: flex; }

.label-filter-dropdown > input {
  padding: 7px 10px;
  background: var(--bg-surface);
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 12px;
  outline: none;
}

.label-filter-list {
  overflow-y: auto;
  flex: 1;
  padding: 4px 0;
}

.label-filter-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 11px;
  color: var(--text-muted);
  transition: background 0.1s;
}
.label-filter-item:hover { background: rgba(59,130,246,0.08); }
.label-filter-item input { cursor: pointer; accent-color: var(--accent); flex-shrink: 0; }

/* ── Confidence slider ───────────────────────────────────────────────────── */
.conf-filter-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
}
.conf-slider { width: 70px; accent-color: var(--accent); cursor: pointer; }
.conf-value { font-size: 11px; color: var(--text-muted); min-width: 28px; }

/* ── Sort select ─────────────────────────────────────────────────────────── */
.sort-wrap { display: flex; align-items: center; gap: 4px; }
.sort-select { width: 100px; }

/* ── Custom label section ───────────────────────────────────────────────── */
.custom-label-section {
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.custom-label-header {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.label-search-wrap { margin-bottom: 4px; }
.label-search-wrap input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: 5px;
  font-size: 12px;
  outline: none;
  box-sizing: border-box;
}
.label-search-wrap input:focus { border-color: var(--accent); }

.label-results {
  max-height: 140px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg);
  margin-bottom: 8px;
}

.label-result-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 11px;
  transition: background 0.1s;
}
.label-result-row:hover { background: rgba(59,130,246,0.1); }

.label-result-empty { padding: 8px; font-size: 11px; color: var(--text-muted); text-align: center; }

.lr-code {
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
  min-width: 42px;
}
.lr-name { font-size: 11px; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.lr-tag {
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 3px;
  background: rgba(168,85,247,0.18);
  color: #d8b4fe;
  flex-shrink: 0;
}

.custom-label-create { margin-top: 6px; }

.custom-label-create-title {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.custom-label-create-row {
  display: flex;
  gap: 4px;
  align-items: center;
}
.custom-label-create-row input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 11px;
  outline: none;
}
.custom-label-create-row input:first-child { width: 64px; flex-shrink: 0; }
.custom-label-create-row input:nth-child(2) { flex: 1; }
.custom-label-create-row input:focus { border-color: var(--accent); }

.label-error {
  font-size: 11px;
  color: var(--danger);
  margin-top: 4px;
  min-height: 14px;
}

/* ── Scrollbar global ────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Help button (header) ────────────────────────────────────────────────── */
.btn-help {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}
.btn-help:hover { border-color: var(--accent); color: var(--text); }

/* ── Splash overlay ──────────────────────────────────────────────────────── */
#splash-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(10, 18, 35, 0.82);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 16px;
}

#splash-overlay.visible {
  display: flex;
  animation: splashFadeIn 0.25s ease;
}

@keyframes splashFadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}

.splash-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.splash-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.splash-logo-icon {
  font-size: 36px;
  line-height: 1;
  flex-shrink: 0;
}

.splash-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.splash-tagline {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.splash-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.splash-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.splash-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.splash-step-num {
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.splash-step > div {
  font-size: 12px;
  line-height: 1.5;
}

.splash-step strong {
  color: var(--text);
  font-weight: 600;
  margin-right: 5px;
}

.splash-step span {
  color: var(--text-muted);
}

.splash-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.splash-dismiss-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}
.splash-dismiss-label input { accent-color: var(--accent); cursor: pointer; }

.btn-get-started {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-get-started:hover { background: var(--accent-hover); }