:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-soft: #f0f2f5;
  --text: #172033;
  --muted: #667085;
  --line: #d8dde6;
  --accent: #295bd6;
  --accent-soft: #e9efff;
  --danger: #b42318;
  --danger-soft: #fee4e2;
  --success: #067647;
  --warning: #b54708;
  --shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-soft: #20242d;
    --text: #ecf0f6;
    --muted: #a1a9b8;
    --line: #323844;
    --accent: #8cabff;
    --accent-soft: #222f50;
    --danger: #ff8a80;
    --danger-soft: #442321;
    --success: #67dba5;
    --warning: #ffb86b;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }

.topbar { display: flex; justify-content: space-between; gap: 24px; padding: 28px max(24px, calc((100vw - 1280px) / 2)); background: var(--panel); border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 3px 0 6px; font-size: clamp(26px, 4vw, 40px); line-height: 1.12; }
h2 { margin: 0; font-size: 22px; }
p { margin: 0; }
.muted { color: var(--muted); }
.header-actions { display: flex; align-items: flex-start; gap: 10px; }

button, select, input, textarea { color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 9px; }
button { padding: 9px 13px; }
button:hover { border-color: var(--accent); }
button.primary { color: white; background: #295bd6; border-color: #295bd6; }
button:disabled { cursor: not-allowed; opacity: .55; }

.badge, .status { display: inline-flex; align-items: center; min-height: 24px; padding: 2px 8px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel-soft); color: var(--muted); font-size: 12px; font-weight: 650; }
.status.open, .status.unverified { color: var(--warning); }
.status.done, .status.verified, .status.answered, .status.active { color: var(--success); }
.status.blocked, .status.rejected { color: var(--danger); }

.banner { margin: 16px auto 0; max-width: 1280px; padding: 12px 16px; border: 1px solid #f7b27a; border-radius: 10px; background: #fff4e8; color: #8a3e06; }
.banner.danger { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.hidden { display: none !important; }
.toast { position: fixed; right: 20px; bottom: 20px; z-index: 10; max-width: 420px; padding: 12px 16px; border-radius: 10px; background: var(--text); color: var(--bg); box-shadow: var(--shadow); }
.toast.error { background: var(--danger); color: white; }

main { max-width: 1280px; margin: 0 auto; padding: 24px; }
.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.summary-grid article { display: flex; flex-direction: column; gap: 3px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); box-shadow: var(--shadow); }
.summary-grid strong { font-size: 28px; line-height: 1; }
.summary-grid span { color: var(--muted); }

.toolbar { display: grid; grid-template-columns: minmax(240px, 1fr) 180px 160px; gap: 10px; margin: 22px 0 14px; }
.toolbar input, .toolbar select { width: 100%; padding: 10px 12px; }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 6px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.tab { flex: 0 0 auto; border-color: transparent; background: transparent; }
.tab.active { border-color: var(--line); background: var(--accent-soft); color: var(--accent); }
.view { display: none; padding-top: 24px; }
.view.active { display: block; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 14px; }
.section-heading p { margin-top: 4px; color: var(--muted); }
.cards { display: grid; gap: 10px; }

.card { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); box-shadow: var(--shadow); overflow: hidden; }
.card-head { display: flex; justify-content: space-between; gap: 16px; padding: 15px 16px 10px; }
.card-title { min-width: 0; }
.card-id { color: var(--accent); font: 700 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
.card-title h3 { margin: 4px 0 0; font-size: 17px; overflow-wrap: anywhere; }
.card-badges { display: flex; align-items: flex-start; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.card-body { padding: 0 16px 16px; }
.markdown { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; color: var(--text); }
.paths { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 0; }
.path { padding: 4px 7px; border-radius: 6px; background: var(--panel-soft); color: var(--muted); font: 12px ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
.level-L1 { margin-left: 18px; }
.level-L2 { margin-left: 36px; }
.level-L3 { margin-left: 54px; }
.level-L4 { margin-left: 72px; }

.response-panel { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.response-panel label { display: block; margin-bottom: 6px; font-weight: 650; }
.response-panel textarea { width: 100%; min-height: 105px; resize: vertical; padding: 10px 12px; }
.response-row { display: grid; grid-template-columns: minmax(150px, 220px) minmax(120px, 180px) auto; gap: 8px; align-items: end; margin-top: 8px; }
.response-row label { margin: 0; color: var(--muted); font-size: 12px; font-weight: 500; }
.response-row select, .response-row input { width: 100%; margin-top: 4px; padding: 8px 10px; }
.saved-meta { margin-top: 8px; color: var(--muted); font-size: 12px; }
.empty { padding: 24px; border: 1px dashed var(--line); border-radius: 12px; color: var(--muted); text-align: center; }

#json-view { max-height: 70vh; overflow: auto; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); white-space: pre-wrap; overflow-wrap: anywhere; }
footer { max-width: 1280px; margin: 0 auto; padding: 0 24px 28px; color: var(--muted); font-size: 12px; }

@media (max-width: 760px) {
  .topbar { padding: 20px; }
  .header-actions { flex-direction: column; }
  main { padding: 18px; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar { grid-template-columns: 1fr; }
  .level-L1, .level-L2, .level-L3, .level-L4 { margin-left: 0; }
  .response-row { grid-template-columns: 1fr; }
  .card-head { flex-direction: column; }
  .card-badges { justify-content: flex-start; }
}