:root {
  --bg: #0f1216;
  --panel: #171c22;
  --panel2: #1e252d;
  --line: #2a333d;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #3ba55d;
  --accent2: #1a6fd4; /* darkened for WCAG AA 4.5:1 contrast with white (#2f81f7 → 3.74:1 fail) */
  --danger: #e5534b;
  --warn: #d29922;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Topbar ── */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 0 18px; height: 48px;
  background: var(--panel); border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.brand { font-weight: 700; font-size: 15px; }
.brand span { color: var(--accent); }
.topbar-nav { display: flex; gap: 4px; margin-left: 16px; }
.topbar-nav a {
  padding: 6px 12px; border-radius: 6px; font-size: 13px; color: var(--muted);
}
.topbar-nav a:hover, .topbar-nav a.active { background: var(--panel2); color: var(--text); text-decoration: none; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.ctx-badge {
  font-size: 12px; color: var(--muted); background: var(--panel2);
  padding: 3px 10px; border-radius: 20px; border: 1px solid var(--line);
}

/* ── Layout ── */
#app { flex: 1; overflow-y: auto; padding: 24px; }

/* ── Page title ── */
.page-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.page-header h1 { margin: 0; font-size: 20px; }
.page-header .spacer { flex: 1; }

/* ── Cards grid ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px; cursor: pointer; transition: border-color 0.15s;
}
.card:hover { border-color: var(--accent2); }
.card h3 { margin: 0 0 6px; font-size: 15px; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }
.card .card-actions { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Table ── */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 8px 12px; font-size: 12px; color: var(--muted); border-bottom: 1px solid var(--line); }
td { padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 13px; }
tr:last-child td { border-bottom: none; }
.table-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }

/* ── Buttons ── */
button, .btn {
  font: inherit; padding: 8px 14px; border-radius: 8px;
  border: 1px solid var(--line); cursor: pointer; font-size: 13px;
  background: var(--panel2); color: var(--text);
  display: inline-flex; align-items: center; gap: 6px;
}
button:hover, .btn:hover { border-color: var(--accent2); }
button.primary, .btn-primary {
  background: var(--accent2); border-color: var(--accent2); color: #fff; font-weight: 600;
}
button.primary:hover, .btn-primary:hover { background: #1a6fd4; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.ghost { background: transparent; color: var(--muted); border-color: transparent; }
button.sm { padding: 5px 10px; font-size: 12px; }
button:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 13px; }
input[type=text], input[type=url], input[type=number], select, textarea {
  width: 100%; padding: 8px 10px; background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; font: inherit;
}
input[type=text]:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent2); }
textarea { min-height: 70px; resize: vertical; }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input[type=checkbox] { width: auto; }

/* ── Tabs ── */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.tab {
  padding: 8px 16px; cursor: pointer; font-size: 13px; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent2); }
.tab:hover { color: var(--text); }

/* ── Badges ── */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 12px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-pending { background: rgba(210,153,34,0.15); color: var(--warn); border: 1px solid rgba(210,153,34,0.3); }
.badge-approved { background: rgba(59,165,93,0.15); color: var(--accent); border: 1px solid rgba(59,165,93,0.3); }
.badge-rejected { background: rgba(229,83,75,0.15); color: var(--danger); border: 1px solid rgba(229,83,75,0.3); }

/* ── Toast ── */
#toast-container { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 9999; }
.toast {
  padding: 10px 16px; border-radius: 8px; font-size: 13px; max-width: 360px;
  animation: fadeIn 0.2s ease;
}
.toast-success { background: #1e3a2b; border: 1px solid var(--accent); color: var(--accent); }
.toast-error { background: #3a1e1e; border: 1px solid var(--danger); color: var(--danger); }
.toast-info { background: var(--panel2); border: 1px solid var(--line); color: var(--text); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── Modal ── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
}
.modal {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 24px; min-width: 380px; max-width: 560px; width: 100%;
}
.modal h2 { margin: 0 0 18px; font-size: 17px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }

/* ── Asset grid ── */
.asset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
.asset-thumb {
  background: var(--panel2); border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; cursor: pointer; aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center; position: relative;
}
.asset-thumb img { width: 100%; height: 100%; object-fit: cover; }
.asset-thumb .asset-status {
  position: absolute; bottom: 4px; right: 4px;
}
.asset-thumb:hover { border-color: var(--accent2); }
.asset-thumb.selected { border-color: var(--accent2); box-shadow: 0 0 0 2px rgba(47,129,247,0.3); }

/* ── Import result ── */
.import-result {
  background: var(--panel2); border: 1px solid var(--line); border-radius: 8px;
  padding: 14px; margin-top: 16px;
}
.import-result .stat { display: flex; justify-content: space-between; padding: 4px 0; font-size: 13px; }
.import-result .stat-label { color: var(--muted); }
.skip-list { margin-top: 10px; max-height: 160px; overflow-y: auto; }
.skip-item { font-size: 12px; color: var(--muted); padding: 2px 0; border-bottom: 1px solid var(--line); }

/* ── Versions list ── */
.version-row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.version-row:last-child { border-bottom: none; }
.version-id { font-family: monospace; font-size: 12px; color: var(--muted); }
.version-num { font-weight: 700; font-size: 16px; }

/* ── Export panel ── */
.export-result {
  background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; padding: 14px;
}
.manifest-hash { font-family: monospace; font-size: 11px; color: var(--muted); word-break: break-all; margin-top: 6px; }

/* ── QA review ── */
.qa-item {
  display: flex; gap: 14px; padding: 14px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px;
}
.qa-thumb { width: 80px; height: 80px; object-fit: cover; border-radius: 6px; background: var(--panel2); flex-shrink: 0; }
.qa-info { flex: 1; }
.qa-actions { display: flex; gap: 8px; margin-top: 8px; }

/* ── Studio ── */
.studio-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 0;
  height: calc(100vh - 48px);
  overflow: hidden;
}
.studio-canvas-area {
  display: flex; flex-direction: column;
  background: #0a0d10; position: relative; overflow: hidden;
}
.canvas-toolbar {
  display: flex; align-items: center; gap: 10px; padding: 8px 14px;
  background: var(--panel); border-bottom: 1px solid var(--line); flex-shrink: 0;
}
.canvas-wrapper {
  flex: 1; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.canvas-wrapper img#studioImg {
  position: absolute; max-width: 100%; max-height: 100%; object-fit: contain;
  user-select: none; pointer-events: none;
}
.canvas-wrapper canvas#bboxCanvas {
  position: absolute; cursor: crosshair;
}
.studio-panel {
  background: var(--panel); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; overflow: hidden;
}
.studio-panel-inner { flex: 1; overflow-y: auto; padding: 14px; }
.studio-panel-footer { padding: 12px 14px; border-top: 1px solid var(--line); display: flex; gap: 8px; }
.nav-bar {
  display: flex; align-items: center; gap: 8px; padding: 8px 14px;
  background: var(--panel2); border-top: 1px solid var(--line); flex-shrink: 0;
}
.nav-bar .item-counter { flex: 1; text-align: center; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

/* Class selector */
.class-list { display: flex; flex-direction: column; gap: 4px; }
.class-btn {
  width: 100%; text-align: left; padding: 8px 10px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--panel2); color: var(--text); cursor: pointer;
  font-size: 13px;
}
.class-btn:hover { border-color: var(--accent2); }
.class-btn.active { background: var(--accent2); border-color: var(--accent2); color: #fff; }

/* Annotation list in panel */
.ann-list { display: flex; flex-direction: column; gap: 6px; }
.ann-item {
  display: flex; align-items: center; gap: 8px; padding: 7px 10px;
  background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; cursor: pointer;
}
.ann-item.selected { border-color: var(--accent2); background: rgba(47,129,247,0.08); }
.ann-color { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; }
.ann-label { flex: 1; font-size: 13px; }
.ann-del { color: var(--danger); background: transparent; border: none; cursor: pointer; padding: 2px 6px; }

.shortcuts-hint { font-size: 11px; color: var(--muted); line-height: 1.8; margin-top: 10px; }
.section-title { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.6px; margin: 14px 0 8px; }

/* Errors */
.errors { color: var(--danger); font-size: 13px; min-height: 18px; }
.errors ul { margin: 4px 0 0; padding-left: 18px; }
.info-msg { color: var(--muted); font-size: 13px; padding: 20px 0; text-align: center; }