/* 思考事件訓練所：作戰桌介面
   - 顏色就是資訊：鈷藍＝行動與決策；青綠＝事實；琥珀＝推測與說法；紫＝資訊缺口
   - 兩種字體：Noto Sans TC（內文與介面）、霞鶩文楷 TC（案例標題、引導問題、學習者的筆記）
   - 唯一的視覺亮點是「決策路線」：其他元素保持安靜
   - 版面：桌面左欄案卷（情境）＋右欄作戰桌（作答與紀錄）；手機改成分頁＋底部固定行動列 */
:root {
  --paper: #edf0ea; --sheet: #fbfcf9; --ink: #17222d; --muted: #566270; --line: #cfd6cc; --line-strong: #9aa59b;
  --act: #2346c8; --act-ink: #ffffff; --act-soft: #e2e7fa;
  --fact: #0e7a6b; --fact-soft: #dcefe9; --claim: #b26b12; --claim-soft: #f6ead6; --gap: #6a4bb8; --gap-soft: #ebe5f7;
  --warn: #b0342b; --warn-soft: #f7e1de;
  --font-body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --font-note: "LXGW WenKai TC", "Kaiti TC", "BiauKai", "Noto Sans TC", serif;
  --measure: 38em;
  --bar-h: 64px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141a1f; --sheet: #1b2229; --ink: #e5eae6; --muted: #9ba7a3; --line: #2d3740; --line-strong: #4a5764;
    --act: #8ea4ff; --act-ink: #10173a; --act-soft: #1f2748;
    --fact: #5cc8b4; --fact-soft: #17302b; --claim: #e2a24f; --claim-soft: #33260f; --gap: #b49cf2; --gap-soft: #2a2140;
    --warn: #f2877d; --warn-soft: #3b1c19;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #141a1f; --sheet: #1b2229; --ink: #e5eae6; --muted: #9ba7a3; --line: #2d3740; --line-strong: #4a5764;
  --act: #8ea4ff; --act-ink: #10173a; --act-soft: #1f2748;
  --fact: #5cc8b4; --fact-soft: #17302b; --claim: #e2a24f; --claim-soft: #33260f; --gap: #b49cf2; --gap-soft: #2a2140;
  --warn: #f2877d; --warn-soft: #3b1c19;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 16px; line-height: 1.75;
  font-variant-numeric: tabular-nums; }
a { color: var(--act); text-underline-offset: 3px; }
svg.i { width: 1.15em; height: 1.15em; flex: none; vertical-align: -0.2em; }

/* ---------- 頂部 ---------- */
.top { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; padding: 10px max(16px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line); background: var(--sheet); position: relative; z-index: 2; }
.brand { font-family: var(--font-note); font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none;
  display: inline-flex; gap: 8px; align-items: center; }
.brand svg { color: var(--act); width: 22px; height: 22px; }
nav { display: flex; gap: 2px; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
nav::-webkit-scrollbar { display: none; }
nav a { padding: 5px 11px; border-radius: 999px; text-decoration: none; color: var(--muted); font-size: .93rem; white-space: nowrap; }
nav a.on { background: var(--act-soft); color: var(--act); font-weight: 500; }
#who { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: .88rem; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 22px max(16px, env(safe-area-inset-left)) 72px; display: grid; gap: 18px; }
h1, h2 { margin: 0; text-wrap: balance; font-weight: 700; }
h1 { font-family: var(--font-note); font-size: 1.85rem; line-height: 1.35; }
h2 { font-size: 1.2rem; line-height: 1.4; }
h3 { font-size: .95rem; font-weight: 600; color: var(--ink); margin: 0 0 6px; }
.muted { color: var(--muted); }
p { margin: 0 0 .6em; }

/* ---------- 控制項 ---------- */
button, .btn { font: inherit; font-size: .95rem; padding: 8px 15px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--sheet);
  color: var(--ink); cursor: pointer; display: inline-flex; gap: 7px; align-items: center; justify-content: center; min-height: 40px; }
button:hover:not(:disabled) { border-color: var(--act); }
button.primary { background: var(--act); color: var(--act-ink); border-color: var(--act); font-weight: 600; }
button.quiet { border-color: transparent; background: transparent; color: var(--act); padding-inline: 6px; }
button:disabled { opacity: .45; cursor: default; }
button[aria-pressed="true"] { background: var(--act-soft); border-color: var(--act); color: var(--act); }
input, select, textarea { font: inherit; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--sheet);
  color: var(--ink); width: 100%; }
textarea { min-height: 120px; resize: vertical; font-family: var(--font-note); font-size: 1.06rem; line-height: 1.7; }
textarea::placeholder { font-family: var(--font-body); font-size: .92rem; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--act); outline-offset: 2px; }
details > summary { cursor: pointer; color: var(--act); font-weight: 500; }

.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.between { justify-content: space-between; }
.card { background: var(--sheet); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; min-width: 0; }
.pill { display: inline-flex; gap: 4px; align-items: center; font-size: .78rem; padding: 1px 9px; border-radius: 999px; white-space: nowrap; line-height: 1.6; }
.pill.pass, .pill.fact { background: var(--fact-soft); color: var(--fact); }
.pill.fix { background: var(--warn-soft); color: var(--warn); }
.pill.wait, .pill.claim { background: var(--claim-soft); color: var(--claim); }
.pill.flag, .pill.gap { background: var(--gap-soft); color: var(--gap); }
.pill.act { background: var(--act-soft); color: var(--act); }
.pill.n { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.error { background: var(--warn-soft); color: var(--warn); padding: 10px 14px; border-radius: 8px; }
.notice { border-left: 3px solid var(--claim); background: var(--claim-soft); padding: 8px 12px; border-radius: 0 8px 8px 0; font-size: .92rem; }

.md p, .md li { max-width: var(--measure); }
.md ul, .md ol { padding-left: 1.3em; margin: 0 0 .5em; }
.md li { margin: 0 0 .35em; }
.md table { border-collapse: collapse; font-size: .9rem; display: block; overflow-x: auto; }
.md th, .md td { border: 1px solid var(--line); padding: 5px 8px; vertical-align: top; }
.md blockquote { margin: 0; padding: 4px 12px; border-left: 3px solid var(--line-strong); color: var(--muted); }
.mermaid { background: var(--sheet); overflow-x: auto; }

/* ---------- 首頁：決策時刻清單 ---------- */
.intro { display: grid; gap: 10px; max-width: 46em; }
.intro p { font-size: 1.02rem; }
.chips { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.chips button { min-height: 34px; padding: 4px 12px; border-radius: 999px; white-space: nowrap; font-size: .9rem; }
.docket { display: grid; gap: 0; border-top: 1px solid var(--line); }
.docket-item { display: grid; grid-template-columns: 5.2rem minmax(0, 1fr) auto; gap: 6px 18px; align-items: center;
  padding: 16px 4px; border-bottom: 1px solid var(--line); }
.docket-item .year { font-size: 1.7rem; font-weight: 700; color: var(--muted); line-height: 1; letter-spacing: -.01em; }
.docket-item h2 { font-family: var(--font-note); font-size: 1.22rem; }
.docket-item .meta { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; color: var(--muted); font-size: .88rem; }
.docket-item .acts { display: flex; gap: 6px; }
.diff { display: inline-flex; gap: 2px; align-items: center; color: var(--act); line-height: 1; }
.diff svg { width: 11px; height: 11px; }

/* ---------- 決策路線（唯一的視覺亮點） ---------- */
.route { display: grid; gap: 6px; }
.route-head { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; }
.route-head strong { font-family: var(--font-note); font-size: 1.15rem; }
.route-track { display: grid; grid-template-columns: repeat(10, minmax(0, 1fr)); align-items: start; position: relative; padding-top: 2px; }
.stop { display: grid; justify-items: center; gap: 4px; position: relative; color: var(--muted); font-size: .8rem; text-align: center; }
.stop::before { content: ""; position: absolute; top: 13px; right: 50%; width: 100%; border-top: 2px dashed var(--line-strong); z-index: 0; }
.stop:first-child::before { display: none; }
.stop.done::before, .stop.now::before { border-top-style: solid; border-color: var(--act); }
.node { width: 28px; height: 28px; display: grid; place-items: center; position: relative; z-index: 1; background: var(--paper); }
.node svg { width: 28px; height: 28px; }
.stop.now { color: var(--act); font-weight: 600; }
.stop.done { color: var(--ink); }
.route-compact { display: none; }

/* ---------- 訓練頁：案卷＋作戰桌 ---------- */
.tabs { display: none; }
.train { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); grid-template-areas: "dossier desk" "dossier log"; gap: 18px 26px; align-items: start; }
.dossier { grid-area: dossier; position: sticky; top: 12px; max-height: calc(100vh - 24px); overflow-y: auto; padding: 4px 18px 18px 18px;
  border-left: 3px solid var(--ink); background: var(--sheet); border-radius: 0 4px 4px 0; }
.desk { grid-area: desk; display: grid; gap: 14px; min-width: 0; }
.log { grid-area: log; display: grid; gap: 14px; min-width: 0; }
.log:empty { display: none; }
.facts { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px 12px; margin: 10px 0 14px; font-size: .9rem; }
.facts dt { color: var(--muted); white-space: nowrap; }
.facts dd { margin: 0; }
.moment { display: inline-flex; gap: 6px; align-items: center; color: var(--act); font-weight: 600; }
.dossier .md { font-size: 1.02rem; }
.dilemma { border-left: 3px solid var(--claim); padding: 4px 0 4px 12px; margin-top: 10px; }

.task { border: 1.5px solid var(--act); border-radius: 12px; padding: 16px 18px; background: var(--sheet); display: grid; gap: 12px; }
.task-head { display: flex; gap: 10px; align-items: center; }
.task-head svg { width: 26px; height: 26px; color: var(--act); }
.task-head h2 { font-size: 1.1rem; }
.task .prompt { font-family: var(--font-note); font-size: 1.08rem; }
.advance { display: flex; gap: 10px; align-items: center; justify-content: flex-end; flex-wrap: wrap; }
.note { font-family: var(--font-note); font-size: 1.05rem; }
.entry { border-top: 1px solid var(--line); padding-top: 12px; }
.entry:first-child { border-top: 0; padding-top: 0; }

/* 整理表：語意顏色標在欄位左側 */
.field { display: grid; gap: 4px; padding-left: 12px; border-left: 3px solid var(--line); }
.field[data-kind="fact"] { border-color: var(--fact); }
.field[data-kind="claim"] { border-color: var(--claim); }
.field[data-kind="gap"] { border-color: var(--gap); }
.field[data-kind="question"] { border-color: var(--act); }
.field .guide { color: var(--muted); font-size: .9rem; margin: 0; }
.field .case-guide { font-family: var(--font-note); font-size: 1rem; margin: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 6px; }
.stepper { display: flex; gap: 8px; align-items: center; justify-content: space-between; }
.dots { display: flex; gap: 5px; }
.dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.dots span.on { background: var(--act); width: 20px; border-radius: 4px; }

/* 選擇題 */
.choices { display: grid; gap: 6px; }
.choice { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.choice:has(input:checked) { border-color: var(--act); background: var(--act-soft); }
.choice input { width: auto; margin-top: 6px; accent-color: var(--act); }
.lens { display: grid; gap: 10px; }
.lens-item { display: grid; gap: 6px; padding: 10px 0; border-top: 1px solid var(--line); }
.lens-item .twin { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.lens-item .twin > div { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px; font-size: .93rem; }
.lens-item .sees svg { color: var(--fact); } .lens-item .misses svg { color: var(--gap); }

/* 斜率圖 */
.slope { width: 100%; height: auto; max-width: 520px; }
.slope text { font-family: var(--font-body); font-size: 12px; fill: var(--ink); }
.slope .axis { font-size: 11px; fill: var(--muted); }

.score { font-size: 1.8rem; font-weight: 700; color: var(--act); }
.reveal h2 { display: flex; gap: 8px; align-items: center; }
.reveal h2 svg { color: var(--act); }

/* 管理頁 */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.split.list { grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); }
.rank { display: grid; gap: 6px; padding: 0; margin: 0; list-style: none; counter-reset: r; }
.rank li { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 6px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--sheet); counter-increment: r; }
.rank li::before { content: counter(r); color: var(--act); font-weight: 700; }
.rank li button { padding: 2px 10px; min-height: 34px; }
.list-col { max-height: 75vh; overflow-y: auto; padding: 0; }
.list-col button { display: flex; justify-content: flex-start; width: 100%; text-align: left; border: none; border-bottom: 1px solid var(--line); border-radius: 0; background: none; }
.list-col button[aria-current="true"] { background: var(--act-soft); }
table.t { border-collapse: collapse; width: 100%; font-size: .9rem; }
table.t th, table.t td { border-bottom: 1px solid var(--line); padding: 7px 8px; text-align: left; vertical-align: top; }
.tbl { overflow-x: auto; }

/* ---------- 手機：分頁＋底部固定行動列 ---------- */
@media (max-width: 760px) {
  body { font-size: 17px; }
  h1 { font-size: 1.5rem; }
  .wrap { padding-top: 12px; padding-bottom: calc(var(--bar-h) + 28px + env(safe-area-inset-bottom)); gap: 12px; }
  .top { padding-block: 8px; row-gap: 4px; }
  .top nav { order: 3; flex-basis: 100%; margin-inline: -4px; }
  .brand { flex: 1; font-size: 1.1rem; }
  #who { font-size: .8rem; }
  .docket-item { grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 14px 2px; }
  .docket-item .year { font-size: 1.1rem; }
  .docket-item .acts button { flex: 1; }
  .route-track { display: none; }
  .route-compact { display: flex; gap: 10px; align-items: center; }
  .route-compact .bar { flex: 1; height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; }
  .route-compact .bar span { display: block; height: 100%; background: var(--act); }
  .route-compact .node svg { width: 24px; height: 24px; }
  .tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; position: sticky; top: 0; z-index: 3; background: var(--paper); padding: 6px 0; }
  .tabs button { min-height: 40px; border-radius: 999px; font-size: .92rem; white-space: nowrap; padding-inline: 8px; }
  .tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
  .train { grid-template-columns: minmax(0, 1fr); grid-template-areas: "pane"; }
  .train > * { grid-area: pane; }
  .train[data-tab="dossier"] > :not(.dossier), .train[data-tab="desk"] > :not(.desk), .train[data-tab="log"] > :not(.log) { display: none; }
  .train[data-tab="log"] > .log:empty { display: grid; }
  .dossier { position: static; max-height: none; overflow: visible; padding: 2px 14px 14px; }
  .task { padding: 14px; }
  .advance { position: fixed; left: 0; right: 0; bottom: 0; z-index: 4; padding: 10px max(14px, env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom));
    background: var(--sheet); border-top: 1px solid var(--line); min-height: var(--bar-h); }
  .advance button.primary { flex: 1; min-height: 46px; font-size: 1rem; }
  .lens-item .twin { grid-template-columns: minmax(0, 1fr); }
  .split, .split.list { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: no-preference) {
  .stop.now .node { animation: arrive .5s ease-out 1; }
  @keyframes arrive { from { transform: scale(.6); } to { transform: scale(1); } }
}