:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel2: #1e2740;
  --text: #e6e9f2;
  --muted: #93a0bd;
  --accent: #5b8def;
  --accent2: #38c799;
  --warn: #e0a13d;
  --danger: #e05b5b;
  --border: #2a3452;
}
* { box-sizing: border-box; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  margin: 0;
  padding-bottom: 90px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center;
}
header.topbar .brand { font-weight: 700; font-size: 1.1em; margin-right: auto; }
header.topbar nav { display: flex; gap: 14px; flex-wrap: wrap; }
header.topbar nav a { color: var(--muted); font-size: 0.95em; }
header.topbar nav a.active { color: var(--text); font-weight: 600; }

main { max-width: 920px; margin: 0 auto; padding: 18px 14px; }

h1 { font-size: 1.4em; margin: 6px 0 14px; }
h2 { font-size: 1.15em; margin: 24px 0 10px; color: var(--text); }
h3 { font-size: 1em; margin: 16px 0 6px; color: var(--muted); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 14px;
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.stat { background: var(--panel2); border-radius: 8px; padding: 10px 12px; text-align: center; }
.stat .num { font-size: 1.5em; font-weight: 700; color: var(--accent2); }
.stat .label { font-size: 0.8em; color: var(--muted); margin-top: 2px; }

table { width: 100%; border-collapse: collapse; font-size: 0.92em; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.85em; }

.badge {
  display: inline-block; padding: 1px 7px; border-radius: 999px;
  font-size: 0.75em; font-weight: 700; margin-right: 4px;
}
.badge-A { background: #5b8def33; color: #8fb4f5; }
.badge-B { background: #38c79933; color: #6fd9b5; }
.badge-C { background: #e0a13d33; color: #f0c06a; }
.badge-D { background: #93a0bd22; color: var(--muted); }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.filters select, .filters input[type=text] {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 10px; font-size: 0.9em;
}
button, .btn {
  background: var(--accent); color: white; border: none; border-radius: 6px;
  padding: 6px 12px; font-size: 0.88em; cursor: pointer;
}
button.secondary { background: var(--panel2); color: var(--text); border: 1px solid var(--border); }
button.play { background: var(--accent2); }

.point-row { border-bottom: 1px solid var(--border); padding: 10px 0; }
.point-row.done { opacity: 0.45; }
.point-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.point-head .pt { font-weight: 600; }
.point-meta { color: var(--muted); font-size: 0.82em; margin-left: auto; }
.hits { margin-top: 8px; padding-left: 26px; }
.hit { padding: 6px 0; border-top: 1px dashed var(--border); font-size: 0.88em; }
.hit .snippet { color: var(--muted); margin-top: 2px; }
.hit .meta { color: var(--muted); font-size: 0.85em; }

.progress-bar { background: var(--panel2); border-radius: 999px; height: 8px; overflow: hidden; }
.progress-bar > div { background: var(--accent2); height: 100%; }

#player-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--panel); border-top: 1px solid var(--border);
  padding: 10px 14px; display: none; align-items: center; gap: 10px;
  flex-wrap: wrap;
}
#player-bar.show { display: flex; }
#player-bar .title { font-size: 0.85em; color: var(--muted); flex: 1; min-width: 200px; }
#player-bar audio { flex: 2; min-width: 220px; }

.warn-box { border: 1px solid var(--warn); background: #e0a13d1a; border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; font-size: 0.92em; }

.chk { width: 18px; height: 18px; cursor: pointer; }

.pill { display: inline-block; background: var(--panel2); border-radius: 6px; padding: 2px 8px; font-size: 0.8em; color: var(--muted); margin-right: 4px; }

.exam-questions { margin: 8px 0 0 26px; font-size: 0.9em; }
.exam-questions summary { cursor: pointer; color: var(--accent); font-size: 0.95em; }
.exam-q { border-top: 1px dashed var(--border); padding: 8px 0; }
.exam-q-meta { color: var(--muted); font-size: 0.8em; margin-bottom: 4px; }
.exam-q-stem { white-space: normal; line-height: 1.5; }
.exam-q-options { list-style: none; padding-left: 4px; margin: 6px 0 0; }
.exam-q-options li { padding: 2px 0; color: var(--text); }
.exam-q-options li.correct { color: var(--accent2); font-weight: 700; }

.law-link {
  background: none; border: none; color: var(--accent); text-decoration: underline;
  cursor: pointer; font-size: inherit; padding: 0; margin: 0 2px;
}
.law-link:hover { color: var(--accent2); }

#law-modal-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 100; align-items: center; justify-content: center; padding: 16px;
}
#law-modal-backdrop.show { display: flex; }
#law-modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  max-width: 560px; width: 100%; max-height: 80vh; overflow-y: auto; padding: 16px 18px;
}
#law-modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.law-status { color: var(--accent2); font-weight: 600; margin: 0 0 8px; }
.law-text { line-height: 1.7; white-space: normal; }

.md code { background: var(--panel2); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }
.md pre { background: var(--panel2); padding: 10px 12px; border-radius: 8px; overflow-x: auto; }
.md pre code { background: none; padding: 0; }
.md table { margin: 10px 0; }
.md blockquote { border-left: 3px solid var(--border); margin: 8px 0; padding-left: 12px; color: var(--muted); }
.md { overflow-x: auto; }