/* 線量管理システム E-learning スタイル
   藤淵フォーマット指針に配慮：読みやすいフォント、太字多用を避ける、黒基調、ぶら下げインデント */
:root {
  --ink: #1a1a1a;
  --ink2: #444;
  --muted: #777;
  --line: #d9dee3;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --accent: #1f6f8b;
  --accent2: #2a9d8f;
  --warn: #c0392b;
  --ok: #2e7d32;
  --ng: #c0392b;
  --band: rgba(31,111,139,.12);
  --hl: #e76f51;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 2px 12px rgba(0,0,0,.04);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "MS PGothic", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 15.5px;
  line-height: 1.8;
}

/* ===== トップバー ===== */
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 18px; background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 30;
  flex-wrap: wrap;
}
.menubtn { display: none; font-size: 20px; background: none; border: none; cursor: pointer; }
.brand { display: flex; align-items: center; gap: 8px; }
.logo { font-size: 22px; color: var(--accent); }
.brandttl { font-size: 17px; letter-spacing: .02em; }
.topctl { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.namebox { font-size: 13px; color: var(--ink2); }
.namebox input { font-size: 14px; padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; width: 130px; }
.scorelbl { font-size: 13px; color: var(--accent); background: #eef6f8; padding: 4px 10px; border-radius: 20px; }

/* ===== 進捗バー ===== */
.progwrap { display: flex; align-items: center; gap: 12px; padding: 8px 18px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 53px; z-index: 20; }
.progtrack { flex: 1; height: 8px; background: #e9edf1; border-radius: 20px; overflow: hidden; }
.progbar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width .3s; }
.proglbl { font-size: 12.5px; color: var(--muted); white-space: nowrap; }

/* ===== レイアウト ===== */
.layout { display: flex; align-items: flex-start; max-width: 1280px; margin: 0 auto; }
.sidebar { width: 270px; flex-shrink: 0; position: sticky; top: 110px; height: calc(100vh - 110px); overflow-y: auto; padding: 16px 10px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.navlink { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; text-decoration: none; color: var(--ink2); font-size: 14px; transition: background .15s; }
.navlink:hover { background: #e9eef2; }
.navlink.active { background: var(--accent); color: #fff; }
.navlink.active .navnum { background: rgba(255,255,255,.25); color: #fff; }
.navnum { width: 22px; height: 22px; border-radius: 50%; background: #e3e9ee; color: var(--ink2); font-size: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.navttl { flex: 1; line-height: 1.4; }
.navdot { width: 8px; height: 8px; border-radius: 50%; background: transparent; border: 1px solid var(--line); flex-shrink: 0; }
.navdot.visited { background: #f0c419; border-color: #f0c419; }
.navdot.done { background: var(--ok); border-color: var(--ok); }

.main { flex: 1; min-width: 0; padding: 22px 34px 70px; background: var(--bg); }
.chaphead { border-bottom: 2px solid var(--line); padding-bottom: 12px; margin-bottom: 18px; }
.eyebrow { font-size: 11px; letter-spacing: .18em; color: var(--accent); }
.chaphead h1 { font-size: 25px; margin: 4px 0 0; font-weight: 600; }
.chapbody { max-width: 860px; }

/* ===== 本文ブロック ===== */
.lead { font-size: 16px; background: var(--panel); border-left: 4px solid var(--accent); padding: 14px 18px; border-radius: 0 8px 8px 0; box-shadow: var(--shadow); }
.block { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px 22px; margin: 18px 0; box-shadow: var(--shadow); }
.block h2 { font-size: 18px; margin: 0 0 10px; color: var(--accent); font-weight: 600; border-bottom: 1px solid #eef1f4; padding-bottom: 6px; }
.block p { margin: 8px 0; }
.block ul, .block ol { margin: 8px 0; padding-left: 1.4em; }
.block li { margin: 5px 0; padding-left: 2px; }
ol.big > li { margin: 12px 0; }
ul.goals li { list-style: none; position: relative; padding-left: 22px; }
ul.goals li::before { content: "✓"; position: absolute; left: 0; color: var(--accent2); font-weight: 700; }
.note { background: #fff8e6; border: 1px solid #f0d98a; border-radius: 8px; padding: 12px 16px; margin: 14px 0; font-size: 14.5px; }
.ref { font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.muted { color: var(--muted); }

/* 用語 dl */
dl.terms { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 6px 0; }
dl.terms dt { font-weight: 600; color: var(--accent); }
dl.terms dd { margin: 0; }

/* カード */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin: 10px 0; }
.card2 { background: #f6f9fb; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; font-size: 14px; }

/* テーブル */
table.t { border-collapse: collapse; width: 100%; margin: 10px 0; font-size: 14px; }
table.t th, table.t td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
table.t th { background: #eef4f6; font-weight: 600; }
table.t.small { font-size: 13px; }
table.t td.muted { text-align: center; }

/* ===== 設問ウィジェット ===== */
.qbox { background: #fbfcfd; border: 1px solid var(--line); border-left: 4px solid var(--accent2); border-radius: 8px; padding: 14px 18px; margin: 16px 0; }
.qhead { font-size: 15.5px; margin-bottom: 10px; }
.qtag { display: inline-block; background: var(--accent2); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 4px; margin-right: 8px; vertical-align: 1px; }
.opts { display: flex; flex-direction: column; gap: 8px; }
.opt { text-align: left; padding: 10px 14px; border: 1px solid var(--line); background: #fff; border-radius: 7px; cursor: pointer; font-size: 14.5px; font-family: inherit; transition: background .12s, border-color .12s; }
.opt:hover { background: #eef6f8; border-color: var(--accent2); }
.opt.done { cursor: default; }
.opt.correct { background: #e7f5e9; border-color: var(--ok); }
.opt.wrong { background: #fdecea; border-color: var(--ng); }
.fb { margin-top: 10px; padding: 8px 12px; border-radius: 6px; font-size: 14px; }
.fb.ok { background: #e7f5e9; color: var(--ok); }
.fb.ng { background: #fdecea; color: var(--ng); }

.inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 6px 0; }
.tin { padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 14.5px; font-family: inherit; min-width: 150px; }
.tin.num { min-width: 110px; }
.unit { color: var(--ink2); }
.ta { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; font-size: 14.5px; font-family: inherit; resize: vertical; }
.btn { padding: 8px 16px; background: var(--accent); color: #fff; border: none; border-radius: 7px; cursor: pointer; font-size: 14px; font-family: inherit; text-decoration: none; display: inline-block; }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }
.btn.small { padding: 6px 11px; font-size: 13px; }
.btn.big { padding: 11px 22px; font-size: 15px; }
.btn.danger { background: #fff; color: var(--warn); border: 1px solid #e2b6b1; }
.btn.danger:hover { background: #fdecea; filter: none; }
.calcout { margin: 10px 0; font-size: 14.5px; min-height: 4px; }
.statline { margin: 10px 0; font-size: 14.5px; background: #f0f5f7; border-radius: 6px; padding: 8px 12px; }
.statline b.mean, b.mean { color: var(--hl); }
.statline b.med, b.med { color: var(--accent); }
.model { margin-top: 12px; background: #eef6f0; border: 1px solid #bfe0c9; border-radius: 8px; padding: 12px 16px; }
.model.hidden { display: none; }
.mtag { font-size: 11px; font-weight: 700; color: var(--ok); letter-spacing: .08em; margin-bottom: 4px; }

/* マッチング */
.matchtbl { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.mrow { display: grid; grid-template-columns: 160px 1fr; gap: 12px; align-items: center; }
.mterm { font-weight: 600; color: var(--accent); }
.msel { padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; font-family: inherit; background: #fff; }
.msel.mok { border-color: var(--ok); background: #e7f5e9; }
.msel.mng { border-color: var(--ng); background: #fdecea; }

/* スライダー */
.sliders { display: flex; gap: 22px; flex-wrap: wrap; margin: 10px 0; }
.sliders label { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.sliders input[type=range] { width: 200px; }

/* ===== チャート ===== */
.charthost { width: 100%; }
.chartcard { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 12px 0; box-shadow: var(--shadow); }
.chartttl { font-size: 14px; font-weight: 600; color: var(--ink2); margin-bottom: 6px; }
.chartcap { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
svg.chart { display: block; }
svg.chart .axis { stroke: #888; stroke-width: 1; }
svg.chart .tick { stroke: #aaa; stroke-width: 1; }
svg.chart .grid { stroke: #eef1f4; stroke-width: 1; }
svg.chart .tlabel { font-size: 10.5px; fill: #666; }
svg.chart .albl { font-size: 12px; fill: #444; }
svg.chart .ctitle { font-size: 13px; fill: #333; font-weight: 600; }
svg.chart .bar { fill: var(--accent); opacity: .82; }
svg.chart .barlbl { font-size: 9.5px; fill: #555; }
svg.chart .pt { fill: var(--accent); opacity: .65; }
svg.chart .pt.hl { fill: var(--hl); opacity: 1; stroke: #fff; stroke-width: 1; }
svg.chart .fitline { stroke: var(--hl); stroke-width: 2; }
svg.chart .band { fill: var(--band); }
svg.chart .bandline { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 5 4; opacity: .6; }
svg.chart .curve { fill: none; stroke: var(--accent); stroke-width: 2.2; }
svg.chart .meanline { stroke: var(--hl); stroke-width: 1.5; stroke-dasharray: 4 3; }
svg.chart .normband.sd1 { fill: rgba(31,111,139,.32); }
svg.chart .normband.sd2 { fill: rgba(42,157,143,.22); }
svg.chart .normband.sd3 { fill: rgba(240,196,25,.20); }
svg.chart .whisker { stroke: #555; stroke-width: 1.2; }
svg.chart .box { fill: rgba(31,111,139,.18); stroke: var(--accent); stroke-width: 1.4; }
svg.chart .median { stroke: var(--accent); stroke-width: 2.2; }
svg.chart .refline { stroke: var(--warn); stroke-width: 1.5; stroke-dasharray: 6 4; }
svg.chart .reflbl { font-size: 11px; fill: var(--warn); }
svg.chart .r2lbl { font-size: 12.5px; fill: var(--accent); font-weight: 600; }
svg.chart .series { fill: none; stroke-width: 2; }
svg.chart .series.s1 { stroke: var(--accent); }
svg.chart .series.s2 { stroke: var(--hl); }
.lg { font-size: 13px; } .lg.s1 { color: var(--accent); } .lg.s2 { color: var(--hl); }
.btn.ghost.small { padding: 5px 10px; font-size: 12.5px; }
.checkrow { gap: 14px; }
label.chk { display: inline-flex; align-items: center; gap: 4px; font-size: 13.5px; cursor: pointer; }
label.chk input { cursor: pointer; }
.slv { font-size: 13.5px; color: var(--accent); min-width: 64px; }
.diagramhost svg { display: block; max-width: 100%; }

/* ===== 章フッタ ===== */
.chapfoot { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.navbtns { margin-left: auto; display: flex; gap: 8px; }

/* ===== 印刷ビュー ===== */
.printview { display: none; }
@media print {
  .topbar, .progwrap, .sidebar, .chapfoot, .main { display: none !important; }
  body.printing .printview { display: block; padding: 20px; }
  .printview h1 { font-size: 18px; }
  .pq { border-bottom: 1px solid #ddd; padding: 8px 0; page-break-inside: avoid; }
  .pqq { font-size: 13px; } .pqa { font-size: 13px; color: #333; }
}

/* ===== レスポンシブ ===== */
@media (max-width: 860px) {
  .menubtn { display: block; }
  .sidebar { position: fixed; left: 0; top: 0; height: 100vh; background: var(--panel); z-index: 50; transform: translateX(-100%); transition: transform .2s; box-shadow: var(--shadow); padding-top: 60px; }
  body.navopen .sidebar { transform: translateX(0); }
  .main { padding: 16px 16px 60px; }
  .mrow { grid-template-columns: 1fr; gap: 4px; }
}