:root {
  --bg: #FBFAF7; --surface: #FFFFFF; --surface-muted: #F1EFEA; --ink: #1C1B19; --ink-muted: #5E5A53;
  --outline: #D9D5CD; --primary: #1F6F78; --on-primary: #FFFFFF; --warm: #C7781A; --correct: #2E7D4F; --incorrect: #B3402F;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121417; --surface: #1B1E22; --surface-muted: #24282D; --ink: #ECEAE6; --ink-muted: #A8A39B;
    --outline: #3A3F45; --primary: #7CC4CC; --on-primary: #00363B; --warm: #F0B062; --correct: #7FD3A0; --incorrect: #F29A8A; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 "Noto Sans", "Noto Sans Telugu", system-ui, sans-serif; }
.bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--outline); position: sticky; top: 0; z-index: 2; }
.spacer { flex: 1; }
main { padding: 16px; max-width: 80rem; margin: 0 auto; }
.card { background: var(--surface); border: 1px solid var(--outline); border-radius: var(--radius); padding: 16px; }
.narrow { max-width: 26rem; margin: 10vh auto; text-align: center; }
.muted { color: var(--ink-muted); }
.center { text-align: center; }
.error { color: var(--incorrect); }
button { font: inherit; color: var(--ink); background: var(--surface-muted); border: 1px solid var(--outline); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
button.primary, button.tab.active { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
button.link { background: none; border: none; color: var(--primary); text-decoration: underline; padding: 0; }
button.danger { color: var(--incorrect); }
button:disabled { opacity: .5; cursor: default; }
.badge { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 99px; color: #fff; }
.badge.dev { background: #3F6EAD; } .badge.prod { background: #B3402F; }
.pill { font-size: 12px; background: var(--warm); color: #fff; border-radius: 99px; padding: 0 7px; margin-left: 4px; }
.pill:empty { display: none; }
.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: 12px; }
.filters label { display: flex; flex-direction: column; font-size: 13px; color: var(--ink-muted); gap: 2px; }
select, input, textarea { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--outline); border-radius: 8px; padding: 5px 8px; }
textarea { width: 100%; min-height: 3.2em; }
.split { display: grid; grid-template-columns: minmax(16rem, 2fr) 3fr; gap: 16px; align-items: start; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }
.list { display: flex; flex-direction: column; gap: 8px; }
.row { text-align: left; display: block; width: 100%; background: var(--surface); border: 1px solid var(--outline); border-radius: var(--radius); padding: 10px 12px; }
.row.sel { outline: 2px solid var(--primary); }
.row .top { display: flex; justify-content: space-between; gap: 8px; }
.qid { font-family: ui-monospace, monospace; font-size: 13px; }
.detail { position: sticky; top: 64px; max-height: calc(100vh - 80px); overflow: auto; }
.opts { list-style: none; padding: 0; margin: 8px 0; display: flex; flex-direction: column; gap: 6px; }
.opts li { border: 1px solid var(--outline); border-radius: 8px; padding: 6px 10px; }
.opts li.correct { border-color: var(--correct); color: var(--correct); font-weight: 600; }
.reports-list { margin: 8px 0; padding-left: 18px; }
.tag { font-size: 12px; padding: 1px 6px; border-radius: 6px; background: var(--surface-muted); margin-left: 6px; }
.tag.warn { background: var(--warm); color: #fff; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.kv { color: var(--ink-muted); font-size: 13px; }
.fb { background: var(--surface); border: 1px solid var(--outline); border-radius: var(--radius); padding: 12px; }
.fb .text { white-space: pre-wrap; margin: 6px 0; }