:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1a1d21;
  --muted: #6b7280;
  --line: #dfe3e8;
  --accent: #1f6feb;
  --good: #17803d;
  --warn: #b45309;
  --bad: #b91c1c;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Malgun Gothic", "맑은 고딕", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

h2 { font-size: 15px; margin: 20px 0 10px; }
.muted { color: var(--muted); font-weight: 400; }

/* --- 상단 --------------------------------------------------- */

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 10px 20px;
  background: var(--panel); border-bottom: 1px solid var(--line);
}
.brand strong { font-size: 16px; letter-spacing: -0.2px; }
.brand span { margin-left: 8px; font-size: 12px; }

.status { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12px; }
.chip {
  padding: 2px 9px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--muted);
}
.chip.local  { border-color: #a7d8b6; background: #eefaf1; color: var(--good); }
.chip.remote { border-color: #f0c9a0; background: #fff6ec; color: var(--warn); }
.chip.offline{ border-color: var(--line); background: #f1f2f4; }

.tabs { display: flex; gap: 2px; padding: 0 20px; background: var(--panel); border-bottom: 1px solid var(--line); }
.tab {
  border: 0; background: none; padding: 9px 14px; cursor: pointer;
  font-size: 13px; color: var(--muted); border-bottom: 2px solid transparent;
}
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

main { padding: 18px 20px 60px; max-width: 1280px; margin: 0 auto; }
.view { display: none; }
.view.is-active { display: block; }

/* --- 필터 --------------------------------------------------- */

.filters { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.filters label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
select, input[type="text"], textarea {
  font: inherit; padding: 6px 8px; border: 1px solid var(--line);
  border-radius: 6px; background: #fff; color: var(--ink);
}
textarea { resize: vertical; width: 100%; }

button { font: inherit; cursor: pointer; border-radius: 6px; padding: 7px 14px; }
button.primary { background: var(--accent); color: #fff; border: 1px solid var(--accent); }
button.primary:disabled { opacity: 0.5; cursor: progress; }
button.ghost { background: #fff; border: 1px solid var(--line); color: var(--muted); }

/* --- 작업 영역 ----------------------------------------------- */

.workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 900px) { .workspace { grid-template-columns: 1fr; } }

.pane { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }

.image-frame {
  display: flex; align-items: center; justify-content: center;
  min-height: 340px; background: #0d0f12; border-radius: 8px; overflow: hidden;
}
.image-frame img { max-width: 100%; max-height: 62vh; display: block; }
.placeholder { color: #8b929b; font-size: 13px; }

.card-meta { margin-top: 10px; display: flex; gap: 6px; flex-wrap: wrap; font-size: 12px; }
.card-meta .attribution { flex-basis: 100%; color: var(--muted); font-size: 11px; margin-top: 4px; }

.input-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.input-header h2 { margin: 0 0 10px; }
.toggle { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 5px; }

.freeform { min-height: 220px; }

.actions { display: flex; gap: 8px; margin-top: 14px; align-items: center; }
.shortcut { font-size: 11px; }
.hint { font-size: 12px; color: var(--muted); margin: 8px 0 0; }

/* --- 판정 결과 ------------------------------------------------ */

.result {
  margin-top: 16px; background: var(--panel);
  border: 1px solid var(--line); border-left: 4px solid var(--line);
  border-radius: var(--radius); padding: 16px;
}
.result.adequate { border-left-color: var(--good); }
.result.partial  { border-left-color: var(--warn); }
.result.danger   { border-left-color: var(--bad); }

.verdict-line { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.verdict-badge {
  display: inline-block; padding: 5px 16px; border-radius: 999px;
  font-size: 17px; font-weight: 700; letter-spacing: -0.3px;
}
.verdict-badge.small { padding: 1px 9px; font-size: 12px; font-weight: 600; }
.verdict-badge.adequate { background: #e8f6ed; color: var(--good); border: 1px solid #a7d8b6; }
.verdict-badge.partial  { background: #fff6ec; color: var(--warn); border: 1px solid #f0c9a0; }
.verdict-badge.danger   { background: #fdecec; color: var(--bad);  border: 1px solid #f5c2c2; }

.block-title { font-size: 12px; color: var(--muted); font-weight: 500; margin: 16px 0 7px; }
.block-title.danger { color: var(--bad); font-weight: 700; }

ul.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.item { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 8px; align-items: baseline; font-size: 13px; }
.item .mark { font-weight: 700; text-align: center; }
.item.hit  .mark { color: var(--good); }
.item.miss .mark { color: var(--muted); }
.item.essential.miss .item-label { color: var(--bad); }
.item.danger.hit .mark { color: var(--bad); font-size: 15px; }
.item.danger.hit .item-label { color: var(--bad); font-weight: 600; }
.item.extra.miss { opacity: 0.5; }
.item-hint { grid-column: 2; font-size: 12px; color: var(--muted); }

.feedback { margin-top: 14px; padding: 11px 13px; background: #f7f9fc; border-radius: 8px; font-size: 13px; }
.teaching {
  margin-top: 10px; padding: 11px 13px; font-size: 13px;
  background: #fffbeb; border: 1px solid #fde68a; border-radius: 8px;
}
.reference { margin-top: 10px; font-size: 13px; }
.reference summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.reference p { margin: 7px 0 0; padding: 10px 12px; background: #f7f9fc; border-radius: 8px; }

/* --- 분석 ----------------------------------------------------- */

.verdict-summary { display: flex; gap: 10px; flex-wrap: wrap; }
.verdict-count {
  min-width: 96px; padding: 12px 16px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--panel); text-align: center;
}
.verdict-count .count { display: block; font-size: 26px; font-weight: 700; letter-spacing: -1px; }
.verdict-count .label { font-size: 12px; color: var(--muted); }
.verdict-count.adequate .count { color: var(--good); }
.verdict-count.partial  .count { color: var(--warn); }
.verdict-count.danger   .count { color: var(--bad); }

.chip-list { display: flex; gap: 7px; flex-wrap: wrap; }
.chip.miss   { background: #fff6ec; color: var(--warn); border-color: #f0c9a0; }
.chip.danger { background: #fdecec; color: var(--bad);  border-color: #f5c2c2; }

.bars { display: flex; flex-direction: column; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 180px minmax(0, 1fr) 56px; gap: 10px; align-items: center; font-size: 13px; }
.bar-track { height: 9px; background: #e9ecef; border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--accent); }
.bar-fill.low  { background: var(--bad); }
.bar-fill.mid  { background: var(--warn); }
.bar-fill.high { background: var(--good); }
.bar-value { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

.history-item {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 11px 13px; margin-bottom: 8px;
}
.history-head { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.history-answer { margin-top: 7px; white-space: pre-wrap; font-size: 13px; color: var(--ink); }

.empty { color: var(--muted); padding: 18px 0; }

/* --- 객관식 --------------------------------------------------- */

.mode-panel[hidden] { display: none !important; }

.options { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }

.option {
  display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px;
  align-items: center; text-align: left;
  padding: 12px 14px; font: inherit; font-size: 14px;
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; cursor: pointer;
}
.option:hover:not(:disabled) { border-color: var(--accent); background: #f7f9ff; }
.option:disabled { cursor: default; }
.option .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 999px;
  background: #eef1f5; color: var(--muted); font-size: 12px; font-weight: 600;
}
.option.correct {
  border-color: #a7d8b6; background: #eefaf1;
}
.option.correct .num { background: var(--good); color: #fff; }
.option.wrong {
  border-color: #f5c2c2; background: #fdecec;
}
.option.wrong .num { background: var(--bad); color: #fff; }
.option.muted-out { opacity: 0.45; }

/* --- 계정 ------------------------------------------------------ */

.account { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.account button { padding: 4px 10px; font-size: 12px; }

/* --- 연습 비중 -------------------------------------------------- */

.mix {
  margin: 0 0 14px; padding: 10px 14px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
}
.mix summary { cursor: pointer; font-size: 13px; font-weight: 600; }
.mix summary::marker { color: var(--muted); }
.mix .hint { margin: 8px 0 10px; }
.mix-rows { display: flex; flex-wrap: wrap; gap: 10px; }
.mix-row {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px;
}
.mix-row .name { font-size: 13px; }
.mix-row .n { font-size: 11px; color: var(--muted); }
.mix-row select { font-size: 12px; padding: 3px 6px; }
.mix-row.off { opacity: 0.5; }