/* 中医学 図解塾 — 会員エリア共通スタイル（LP と同じ和紙・朱の配色） */
:root {
  --paper: #f7f2e8;
  --paper-2: #efe6d6;
  --card: #fbf8f1;
  --ink: #2a2420;
  --sub: #6e6359;
  --line: #ddd2c0;
  --shu: #b8432c;
  --shu-dark: #963420;
  --moku: #5e8a5f;
  --ka: #c0503a;
  --do: #c99b3f;
  --kin: #9c978c;
  --sui: #34546f;
  --ok: #4f7d50;
  --ng: #b8432c;
  --mincho: "Shippori Mincho B1", "Yu Mincho", serif;
  --gothic: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(201, 155, 63, .10), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(94, 138, 95, .07), transparent 60%),
    var(--paper);
  background-attachment: fixed;
  font-family: var(--gothic);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
  word-break: auto-phrase;
  text-wrap: pretty;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; }
a { color: var(--shu); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
.mincho { font-family: var(--mincho); }
.muted { color: var(--sub); }
[hidden] { display: none !important; }

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: rgba(247, 242, 232, .9);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(221, 210, 192, .8);
}
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); min-width: 0; }
.logo-mark { width: 28px; height: 28px; flex: none; }
.logo-text { font-family: var(--mincho); font-weight: 700; font-size: 17px; letter-spacing: .12em; white-space: nowrap; }
.head-nav { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.head-nav a { color: var(--sub); text-decoration: none; }
.head-nav a:hover { color: var(--shu); }
.head-nav button.linklike { background: none; border: 0; padding: 0; font: inherit; color: var(--sub); cursor: pointer; }
.head-nav button.linklike:hover { color: var(--shu); }
@media (max-width: 560px) {
  .logo-text { font-size: 15px; letter-spacing: .06em; }
  .head-nav { gap: 12px; font-size: 13px; }
  .head-nav .hide-sm { display: none; }
}

/* ---------- buttons / forms ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--gothic); font-weight: 700; font-size: 15px; letter-spacing: .08em;
  padding: 12px 26px; border-radius: 999px; border: 1.5px solid var(--shu);
  background: var(--shu); color: #fff; text-decoration: none; cursor: pointer;
  transition: background .2s, transform .2s;
  box-shadow: 0 6px 18px -8px rgba(184, 67, 44, .55);
}
.btn:hover { background: var(--shu-dark); border-color: var(--shu-dark); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: transparent; color: var(--shu); box-shadow: none; }
.btn.ghost:hover { background: rgba(184, 67, 44, .07); }
.btn.small { padding: 7px 16px; font-size: 13px; }
.btn.block { width: 100%; }

label.field { display: block; margin: 0 0 16px; font-size: 14px; font-weight: 700; }
label.field span { display: block; margin-bottom: 6px; }
input[type=email], input[type=password], input[type=text], select {
  width: 100%; font: inherit; font-size: 16px; padding: 11px 14px;
  border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
input:focus, select:focus { outline: none; border-color: var(--shu); box-shadow: 0 0 0 3px rgba(184, 67, 44, .15); }
.form-msg { min-height: 1.6em; font-size: 14px; margin: 8px 0 0; }
.form-msg.err { color: var(--ng); }
.form-msg.ok { color: var(--ok); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 28px; box-shadow: 0 10px 30px -22px rgba(42, 36, 32, .35);
}
@media (max-width: 560px) { .card { padding: 20px; border-radius: 14px; } }

.kicker { font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--shu); margin: 0 0 6px; }
.page-title { font-family: var(--mincho); font-weight: 800; font-size: clamp(24px, 3vw, 32px); line-height: 1.5; margin: 0 0 8px; }

/* ---------- dashboard ---------- */
.dash-hero { padding: 40px 0 24px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; }
@media (max-width: 720px) { .dash-hero { grid-template-columns: 1fr; } }
.meter { display: flex; align-items: center; gap: 16px; }
.meter-ring { width: 84px; height: 84px; flex: none; }
.meter-num { font-family: var(--mincho); font-weight: 800; font-size: 26px; line-height: 1.2; }
.meter-num small { font-size: 14px; color: var(--sub); font-weight: 500; margin-left: 2px; }
.resume { margin: 8px 0 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.resume p { margin: 0; }
.resume .t { font-family: var(--mincho); font-weight: 700; font-size: 18px; }

.chapter { margin: 0 0 28px; }
.chapter-head { display: flex; align-items: baseline; gap: 14px; margin: 0 0 12px; }
.chapter-no { font-family: var(--mincho); font-weight: 800; font-size: 15px; color: var(--shu); letter-spacing: .1em; white-space: nowrap; }
.chapter-title { font-family: var(--mincho); font-weight: 800; font-size: 21px; margin: 0; }
.chapter.soon { opacity: .6; }
.soon-tag { font-size: 12px; border: 1px solid var(--line); border-radius: 999px; padding: 1px 10px; color: var(--sub); white-space: nowrap; }
.lessons { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.lesson-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center;
  padding: 14px 18px; background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  text-decoration: none; color: var(--ink); transition: border-color .2s, transform .2s;
}
.lesson-row:hover { border-color: var(--shu); transform: translateY(-1px); }
.lesson-id { font-family: var(--mincho); font-weight: 700; color: var(--sub); font-size: 14px; min-width: 2.4em; }
.lesson-row .t { font-weight: 700; display: block; line-height: 1.6; }
.lesson-row .s { font-size: 13px; color: var(--sub); display: block; line-height: 1.6; }
.badges { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.badge { font-size: 12px; padding: 2px 10px; border-radius: 999px; white-space: nowrap; border: 1px solid var(--line); color: var(--sub); }
.badge.done { background: var(--ok); border-color: var(--ok); color: #fff; }
.badge.score { border-color: var(--do); color: #8a6a24; }
@media (max-width: 560px) {
  .lesson-row { grid-template-columns: auto 1fr; padding: 12px 14px; }
  .badges { grid-column: 2; justify-content: flex-start; }
}

/* ---------- lesson page ---------- */
.lesson-top { padding: 28px 0 0; }
.crumbs { font-size: 13px; color: var(--sub); margin: 0 0 6px; }
.crumbs a { color: var(--sub); }
.tabs {
  position: sticky; top: 60px; z-index: 10; display: flex; gap: 4px;
  background: rgba(247, 242, 232, .94); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  padding: 10px 0; margin: 12px 0 24px; border-bottom: 1px solid var(--line);
}
.tab {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 700; font-size: 15px; color: var(--sub);
  background: transparent; border: 1.5px solid transparent; border-radius: 999px;
  padding: 8px 10px; cursor: pointer; white-space: nowrap;
}
.tab .n { font-family: var(--mincho); width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid currentColor; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; }
.tab[aria-selected=true] { color: var(--shu); border-color: var(--shu); background: var(--card); }
.tab.checked .n { background: var(--ok); border-color: var(--ok); color: #fff; }
@media (max-width: 480px) { .tab { font-size: 13.5px; gap: 6px; padding: 8px 4px; } }

.lesson-nav { display: flex; justify-content: space-between; gap: 12px; margin: 40px 0 64px; flex-wrap: wrap; }
.lesson-nav a { text-decoration: none; }

/* 教科書本文 */
.textbook { font-size: 16.5px; line-height: 2; }
.textbook .lead { font-size: 17px; color: var(--sub); border-left: 3px solid var(--do); padding: 4px 0 4px 16px; margin: 0 0 32px; }
.textbook h2 {
  font-family: var(--mincho); font-weight: 800; font-size: 23px; line-height: 1.5;
  margin: 56px 0 16px; padding-bottom: 8px; border-bottom: 1.5px solid var(--line);
  display: flex; gap: 12px; align-items: baseline;
}
.textbook h2 .no { color: var(--shu); font-size: 17px; letter-spacing: .08em; white-space: nowrap; }
.textbook h3 { font-family: var(--mincho); font-weight: 700; font-size: 19px; margin: 36px 0 10px; }
.textbook p { margin: 0 0 18px; }
.textbook strong { background: linear-gradient(transparent 62%, rgba(201, 155, 63, .32) 62%); font-weight: 700; }
.textbook ruby rt { font-size: .55em; color: var(--sub); letter-spacing: 0; }
.textbook ul, .textbook ol { padding-left: 1.4em; margin: 0 0 18px; }
.textbook li { margin: 4px 0; }
.textbook figure { margin: 28px 0 32px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 14px 10px; }
.textbook figure svg { display: block; margin: 0 auto; width: 100%; height: auto; }
.textbook figcaption { text-align: center; font-size: 13.5px; color: var(--sub); margin-top: 6px; letter-spacing: .06em; }
.textbook .quote { font-family: var(--mincho); font-size: 16px; background: var(--paper-2); border-radius: 10px; padding: 12px 18px; margin: 0 0 18px; }
.textbook .quote cite { display: block; font-style: normal; font-size: 13px; color: var(--sub); font-family: var(--gothic); }

.box { border-radius: 14px; padding: 16px 20px 6px; margin: 24px 0; border: 1.5px solid; position: relative; }
.box > .box-label { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .1em; padding: 0 10px; border-radius: 999px; color: #fff; margin-bottom: 8px; }
.box p, .box ul { margin-bottom: 10px; }
.box.point { border-color: rgba(184, 67, 44, .45); background: rgba(184, 67, 44, .04); }
.box.point > .box-label { background: var(--shu); }
.box.exam { border-color: rgba(52, 84, 111, .45); background: rgba(52, 84, 111, .05); }
.box.exam > .box-label { background: var(--sui); }
.box.memo { border-color: rgba(94, 138, 95, .5); background: rgba(94, 138, 95, .06); }
.box.memo > .box-label { background: var(--moku); }
.box.summary { border-color: var(--do); background: rgba(201, 155, 63, .08); }
.box.summary > .box-label { background: #a8802f; }

.table-scroll { overflow-x: auto; margin: 0 0 24px; -webkit-overflow-scrolling: touch; }
.textbook table { border-collapse: collapse; width: 100%; font-size: 14.5px; line-height: 1.6; background: var(--card); }
.textbook th, .textbook td { border: 1px solid var(--line); padding: 8px 10px; text-align: center; vertical-align: middle; }
.textbook thead th { background: var(--paper-2); font-weight: 700; }
.textbook tbody th { background: var(--paper-2); font-weight: 700; white-space: nowrap; }
.textbook td.l { text-align: left; }
.textbook .gyo-moku { color: var(--moku); } .textbook .gyo-ka { color: var(--ka); } .textbook .gyo-do { color: #a8802f; } .textbook .gyo-kin { color: #75716a; } .textbook .gyo-sui { color: var(--sui); }

/* 用語 */
.terms { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0 0 18px; }
.terms dt { font-weight: 700; font-family: var(--mincho); }
.terms dd { margin: 0; }
@media (max-width: 560px) { .terms { grid-template-columns: 1fr; gap: 0; } .terms dd { margin-bottom: 10px; } }

/* 動画 */
.video-wrap { background: #1c1815; border-radius: 16px; overflow: hidden; box-shadow: 0 16px 40px -24px rgba(0, 0, 0, .6); }
.video-wrap video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #1c1815; }
.video-note { font-size: 14px; color: var(--sub); margin: 14px 0 0; }
.chapters-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 6px; }
.chapters-list button { width: 100%; text-align: left; font: inherit; font-size: 14.5px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 8px 14px; cursor: pointer; color: var(--ink); display: flex; gap: 12px; }
.chapters-list button:hover { border-color: var(--shu); }
.chapters-list .time { color: var(--sub); font-variant-numeric: tabular-nums; min-width: 3em; }

/* テスト */
.quiz-intro { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.q { margin: 0 0 18px; }
.q-head { display: flex; gap: 10px; font-weight: 700; margin: 0 0 12px; line-height: 1.7; }
.q-no { font-family: var(--mincho); color: var(--shu); white-space: nowrap; }
.choices { display: grid; gap: 8px; }
.choice {
  display: flex; gap: 12px; align-items: flex-start; padding: 10px 14px; border: 1.5px solid var(--line);
  border-radius: 12px; cursor: pointer; background: #fff; line-height: 1.6; transition: border-color .15s, background .15s;
}
.choice:hover { border-color: rgba(184, 67, 44, .5); }
.choice input { margin: 4px 0 0; accent-color: var(--shu); flex: none; }
.choice:has(input:checked) { border-color: var(--shu); background: rgba(184, 67, 44, .05); }
.choice.correct { border-color: var(--ok); background: rgba(79, 125, 80, .1); }
.choice.wrong { border-color: var(--ng); background: rgba(184, 67, 44, .08); }
.choice .mark { margin-left: auto; font-weight: 700; font-size: 13px; white-space: nowrap; }
.choice.correct .mark { color: var(--ok); }
.choice.wrong .mark { color: var(--ng); }
.explain { margin: 10px 0 0; padding: 10px 14px; border-radius: 10px; background: var(--paper-2); font-size: 14.5px; line-height: 1.8; }
.explain b { color: var(--sui); }
.result { text-align: center; padding: 28px 20px; margin: 0 0 24px; }
.result .score { font-family: var(--mincho); font-weight: 800; font-size: 44px; line-height: 1.3; }
.result .score small { font-size: 18px; color: var(--sub); }
.result.pass .score { color: var(--ok); }
.result.fail .score { color: var(--shu); }

/* ---------- admin ---------- */
.admin-grid { display: grid; grid-template-columns: 340px 1fr; gap: 24px; align-items: start; margin: 24px 0 64px; }
@media (max-width: 900px) { .admin-grid { grid-template-columns: 1fr; } }
.tbl-wrap { overflow-x: auto; }
table.data { border-collapse: collapse; width: 100%; font-size: 14px; }
table.data th, table.data td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
table.data th { font-size: 12.5px; color: var(--sub); font-weight: 700; }
.pill { font-size: 12px; padding: 1px 9px; border-radius: 999px; border: 1px solid var(--line); }
.pill.active { color: var(--ok); border-color: var(--ok); }
.pill.suspended { color: var(--ng); border-color: var(--ng); }

.site-foot { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 13px; color: var(--sub); text-align: center; }