/* ============================================================
 * styles.css — 社労士アプリの「温かみのある紙」の質感を踏襲
 * ============================================================ */
:root {
  --paper: #f4f0e6;
  --paper-deep: #ece6d6;
  --card: #fffdf8;
  --ink: #2c2a25;
  --ink-700: #45413a;
  --ink-sub: #6e6a60;
  --ink-faint: #807a6c;    /* 小さい補助ラベル用・紙/カード上で AA 近傍まで濃く */
  --accent: #8a7b3f;       /* オリーブ・ゴールド */
  --accent-deep: #6e5f2c;
  --green: #357046;        /* 淡背景上で AA(4.5:1)以上に調整 */
  --green-soft: #e7f0e6;
  --amber: #b9852b;
  --amber-soft: #f6ecd6;
  --red: #9e3d32;          /* 淡背景上で AA 以上に調整 */
  --red-soft: #f6e2de;
  --review: #4f6080;       /* 復習バッジ・淡背景上で AA 以上に調整 */
  --review-soft: #e6ebf2;
  --line: #e7e0cf;
  --line-strong: #d8cfb8;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --shadow: 0 1px 2px rgba(60, 50, 20, .05), 0 6px 18px rgba(60, 50, 20, .05);
  /* ヒートマップ濃淡: アクセント色から自動算出 → テーマを変えると連動 */
  --heat-0: var(--paper-deep);
  --heat-1: color-mix(in srgb, var(--accent) 26%, var(--card));
  --heat-2: color-mix(in srgb, var(--accent) 58%, var(--card));
  --heat-3: var(--accent-deep);
}

/* ===== テーマカラー（:root[data-theme] で全体の色を差し替え） ===== */
:root[data-theme="blue"] {
  --paper: #eef1f6; --paper-deep: #e0e6f0; --card: #fbfcff;
  --accent: #3f5b8a; --accent-deep: #2c4675;
  --line: #dde3ef; --line-strong: #c6d0e2;
}
:root[data-theme="rose"] {
  --paper: #f8eef0; --paper-deep: #f0dde2; --card: #fffafb;
  --accent: #a8506a; --accent-deep: #883a55;
  --line: #efdde2; --line-strong: #e3c7cf;
}
:root[data-theme="green"] {
  --paper: #eef3ea; --paper-deep: #e0ebd9; --card: #fbfdf8;
  --accent: #4a7a44; --accent-deep: #356030;
  --line: #dde8d6; --line-strong: #c9d9c0;
}
:root[data-theme="purple"] {
  --paper: #f1eef7; --paper-deep: #e7e1f1; --card: #fdfbff;
  --accent: #6b54a0; --accent-deep: #523f82;
  --line: #e4ddef; --line-strong: #d0c5e3;
}
:root[data-theme="dark"] {
  --paper: #1b1a17; --paper-deep: #26241f; --card: #24221d;
  --ink: #efe9da; --ink-700: #dad3c3; --ink-sub: #b4ae9f; --ink-faint: #9b9484;
  --accent: #cda44e; --accent-deep: #d8b25f;
  --line: #36332b; --line-strong: #454035;
  --green: #82c08c; --green-soft: #1f3026; --amber: #d8ab5a; --amber-soft: #332a19;
  --red: #dd9189; --red-soft: #33211f; --review: #92a6c6; --review-soft: #1f2733;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 18px rgba(0, 0, 0, .35);
}
:root[data-theme="dark"] .btn-primary { color: #1b1a17; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}

#app { max-width: 520px; margin: 0 auto; }
.screen { padding: 18px 16px calc(96px + env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: 14px; }

/* ---------- ヘッダー ---------- */
.top { padding: 6px 2px 2px; }
.brand { font-size: 21px; font-weight: 800; letter-spacing: .01em; display: flex; align-items: center; gap: 8px; }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-sub { font-size: 12.5px; color: var(--ink-sub); margin-top: 2px; }

/* ---------- カード ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 16px 16px; box-shadow: var(--shadow); }
.card-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.card-head h2 { font-size: 15px; font-weight: 800; margin: 0; color: var(--ink-700); }
.card-note { font-size: 11.5px; color: var(--ink-faint); }

/* ---------- ホーム hero ---------- */
.hero { display: flex; flex-direction: column; gap: 14px; }
.hero-row { display: flex; gap: 10px; }
.pill { flex: 1; text-align: center; border-radius: 999px; padding: 9px 0; font-size: 13.5px; font-weight: 700; border: 1px solid var(--line-strong); background: var(--paper); }
.pill b { font-size: 16px; }
.pill-review { color: var(--review); }
.pill-new { color: var(--green); background: var(--green-soft); border-color: #cfe0cd; }

.overall { display: flex; flex-direction: column; gap: 6px; }
.overall-head { display: flex; align-items: baseline; justify-content: space-between; }
.lv-tag { font-size: 11px; color: var(--ink-faint); }
.lv-name { font-size: 17px; font-weight: 800; color: var(--ink-700); }
.lv-name small { font-size: 12px; font-weight: 600; color: var(--ink-sub); margin-left: 6px; }
.hero-foot { font-size: 12.5px; color: var(--ink-sub); margin: 0; text-align: center; }
.hero-foot b { color: var(--accent-deep); }
.empty-note { font-size: 14px; color: var(--green); font-weight: 700; text-align: center; margin: 2px 0; }
.ground-note { font-size: 12px; color: var(--ink-sub); display: flex; align-items: flex-start; gap: 6px; padding: 0 4px; }
.ground-note svg { color: var(--accent); flex: none; margin-top: 3px; }

/* ---------- 分野バー ---------- */
.lvrow { padding: 8px 0; border-top: 1px solid var(--line); }
.lvrow:first-of-type { border-top: none; }
.lvrow-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.lvrow-name { font-size: 13.5px; font-weight: 700; color: var(--ink-700); }
.lvrow-name small { font-size: 11px; font-weight: 500; color: var(--ink-faint); margin-left: 4px; }
.lvrow-val { font-size: 13px; font-weight: 800; color: var(--accent-deep); white-space: nowrap; }
.lvrow-val small { font-weight: 600; color: var(--ink-sub); }
.lvrow-sub { font-size: 11px; color: var(--ink-faint); margin-top: 3px; }
.bar { height: 8px; background: var(--paper-deep); border-radius: 999px; overflow: hidden; margin-top: 6px; }
.bar.slim { height: 6px; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-deep)); border-radius: 999px; transition: width .3s ease; }

/* ---------- 学習メニュー: 分野選択 ---------- */
.catpick-list { display: flex; flex-direction: column; gap: 8px; }
.catpick { display: flex; align-items: center; justify-content: space-between; gap: 10px; width: 100%; text-align: left; font: inherit; background: var(--paper); border: 1px solid var(--line-strong); border-radius: var(--r-md); padding: 12px 14px; cursor: pointer; transition: background .12s, border-color .12s, transform .05s; }
.catpick:hover { background: #fff; border-color: var(--accent); }
.catpick:active { transform: scale(.99); }
.catpick.is-done { opacity: .55; cursor: default; }
.catpick.is-done:hover { background: var(--paper); border-color: var(--line-strong); }
.catpick-name { font-size: 15px; font-weight: 700; color: var(--ink-700); }
.catpick-sub { font-size: 11.5px; color: var(--ink-faint); margin-top: 2px; }
.catpick-go { font-size: 13px; font-weight: 700; color: var(--accent-deep); white-space: nowrap; }
.catpick.is-done .catpick-go { color: var(--green); }

/* ---------- 学習: 進捗 ---------- */
.study-top { display: flex; align-items: center; justify-content: space-between; padding: 0 2px 4px; }
.link-back { background: none; border: none; font: inherit; font-size: 13px; font-weight: 600; color: var(--ink-sub); cursor: pointer; padding: 2px 0; }
.link-back:hover { color: var(--accent-deep); }
.study-mode { font-size: 11.5px; font-weight: 700; color: var(--ink-faint); }
.study-progress { display: flex; flex-direction: column; gap: 8px; padding: 2px 2px 0; }
.study-count { font-size: 13px; color: var(--ink-sub); }
.study-count b { font-size: 17px; color: var(--ink); margin-right: 2px; }

/* ---------- 学習: 問題カード ---------- */
.q-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px 18px 22px; box-shadow: var(--shadow); }
.q-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.badge { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 999px; display: inline-flex; align-items: center; gap: 3px; }
.badge-review { background: var(--review-soft); color: var(--review); }
.badge-new { background: var(--green-soft); color: var(--green); }
.badge-lv { background: var(--paper-deep); color: var(--ink-700); }
.badge-ox { background: var(--paper-deep); color: var(--ink-sub); }
.badge-danger { background: var(--red-soft); color: var(--red); }
.badge-master { background: #f1ead2; color: var(--accent-deep); }

.q-prompt { font-size: 13px; color: var(--ink-sub); margin: 0 0 8px; text-align: center; }

/* 問題文（記述） */
.stem { font-size: 19px; font-weight: 700; line-height: 1.9; color: var(--ink); padding: 6px 2px 20px; }
.stem.sm { font-size: 16px; font-weight: 600; line-height: 1.8; color: var(--ink-700); padding: 4px 2px 10px; }
.picked-line { font-size: 13.5px; color: var(--ink-sub); text-align: center; margin-bottom: 4px; }
.picked-line b { color: var(--ink); }

/* ○× 回答ボタン */
.ox-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ox {
  display: flex; flex-direction: column; align-items: center; gap: 5px; font: inherit;
  padding: 18px 0 16px; border-radius: var(--r-md); border: 1.5px solid var(--line-strong);
  background: var(--paper); cursor: pointer; transition: background .12s, border-color .12s, transform .05s;
}
.ox:active { transform: scale(.99); }
.ox-mark { font-size: 36px; font-weight: 800; line-height: 1; }
.ox-lab { font-size: 14px; font-weight: 700; color: var(--ink-700); }
.ox-true .ox-mark { color: var(--green); }
.ox-true:hover { background: var(--green-soft); border-color: #cfe0cd; }
.ox-false .ox-mark { color: var(--red); }
.ox-false:hover { background: var(--red-soft); border-color: #e9cfca; }

/* ---------- 自信申告 ---------- */
.conf-block { margin-top: 16px; }
.conf-cap { text-align: center; font-size: 16px; font-weight: 800; color: var(--ink-700); margin: 0 0 12px; }
.conf-row { display: flex; gap: 10px; justify-content: center; }
.conf-chip {
  flex: 1; max-width: 130px; font: inherit; font-size: 15px; font-weight: 700; color: var(--ink-700);
  background: var(--paper); border: 1.5px solid var(--line-strong); border-radius: 999px; padding: 11px 0; cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
}
.conf-chip:hover { border-color: var(--accent); color: var(--accent-deep); background: #fff; }
.conf-note { text-align: center; font-size: 11.5px; color: var(--ink-faint); margin: 12px 0 0; }

/* ---------- 結果 ---------- */
.result-banner { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-radius: var(--r-md); }
.result-banner.is-correct { background: var(--green-soft); }
.result-banner.is-wrong { background: var(--red-soft); }
.rb-ic { display: inline-flex; flex: none; }
.is-correct .rb-ic { color: var(--green); }
.is-wrong .rb-ic { color: var(--red); }
.rb-body { flex: 1; }
.rb-word { font-size: 16px; font-weight: 800; margin: 0; }
.is-correct .rb-word { color: var(--green); }
.is-wrong .rb-word { color: var(--red); }
.rb-detail { font-size: 13px; color: var(--ink-700); margin: 1px 0 0; }
.rb-tag { flex: none; }

.ans-card { display: flex; flex-direction: column; gap: 8px; }
.ans-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ans-judge { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 800; padding: 4px 12px; border-radius: 999px; }
.ans-judge.t { background: var(--green-soft); color: var(--green); }
.ans-judge.f { background: var(--red-soft); color: var(--red); }
.ans-cat { font-size: 11.5px; font-weight: 700; color: var(--ink-faint); }
.ans-explain { font-size: 14.5px; color: var(--ink-700); line-height: 1.9; padding: 10px 14px; background: var(--paper); border-radius: var(--r-sm); border-left: 3px solid var(--accent); }
.next-review { display: flex; align-items: flex-start; gap: 6px; font-size: 12.5px; color: var(--ink-sub); margin-top: 2px; }
.next-review svg { flex: none; margin-top: 3px; color: var(--ink-sub); }
.next-review b { color: var(--ink-700); }

/* ---------- 完了 ---------- */
.done-card { text-align: center; display: flex; flex-direction: column; gap: 8px; align-items: center; padding: 28px 18px; }
.done-stamp { width: 56px; height: 56px; border-radius: 999px; background: var(--green-soft); color: var(--green); display: flex; align-items: center; justify-content: center; }
.done-card h2 { margin: 4px 0 0; font-size: 19px; }
.done-msg { font-size: 13px; color: var(--ink-sub); margin: 0; }
.done-actions { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; justify-content: center; }

/* ---------- マイページ ---------- */
.stat-hero { display: flex; flex-direction: column; gap: 12px; }
.stat-big { text-align: center; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--accent-deep); line-height: 1.1; }
.stat-num small { font-size: 18px; color: var(--ink-faint); font-weight: 700; }
.stat-lab { font-size: 13px; color: var(--ink-sub); margin-top: 2px; }
.stat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.stat-cell { background: var(--paper); border-radius: var(--r-sm); padding: 9px 4px; text-align: center; }
.stat-cell.warn { background: var(--red-soft); }
.sc-num { font-size: 18px; font-weight: 800; color: var(--ink-700); }
.sc-num small { font-size: 11px; font-weight: 600; }
.stat-cell.warn .sc-num { color: var(--red); }
.sc-lab { font-size: 10px; color: var(--ink-sub); margin-top: 1px; line-height: 1.3; }

.setrow { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.setrow label { font-size: 14px; color: var(--ink-700); }
.setrow select { font: inherit; font-size: 14px; padding: 8px 10px; border-radius: var(--r-sm); border: 1px solid var(--line-strong); background: var(--paper); color: var(--ink); }

.data-note { font-size: 12.5px; color: var(--ink-sub); margin: 0 0 12px; line-height: 1.8; }
.data-note b { color: var(--ink-700); }
.data-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- ボタン ---------- */
.btn { font: inherit; font-weight: 700; border-radius: var(--r-md); padding: 12px 18px; cursor: pointer; border: 1px solid transparent; display: inline-flex; align-items: center; justify-content: center; gap: 7px; transition: filter .12s, background .12s, transform .05s; }
.btn:active { transform: scale(.99); }
.btn-lg { width: 100%; padding: 15px; font-size: 16px; }
.btn-sm { padding: 9px 13px; font-size: 13px; border-radius: var(--r-sm); }
.btn-primary { background: var(--accent-deep); color: #fff; } /* 白文字で AA(約6.3:1) を満たす濃いオリーブ */
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { background: var(--card); color: var(--ink-700); border-color: var(--line-strong); }
.btn-secondary:hover { background: #fff; border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--ink-sub); }
.btn-ghost:hover { color: var(--ink); }
.btn-ghost.danger, .btn .danger { color: var(--red); }
.danger { color: var(--red); }

/* ---------- タブバー ---------- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  max-width: 520px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 253, 248, .92); backdrop-filter: blur(8px);
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
}
.tab { background: none; border: none; font: inherit; cursor: pointer; color: var(--ink-sub); padding: 9px 0 8px; display: flex; flex-direction: column; align-items: center; gap: 3px; font-size: 11px; font-weight: 600; }
.tab .tab-ic { display: inline-flex; }
.tab.active { color: var(--accent-deep); }

/* ---------- 学習メニューの注記 ---------- */
.mini-note { font-size: 11.5px; color: var(--ink-sub); text-align: center; margin: 2px 0 0; }

/* ---------- 用語の説明（数字の見かた） ---------- */
.hero-note { font-size: 11.5px; color: var(--ink-sub); text-align: center; margin: 0; line-height: 1.75; }
.hero-note b { color: var(--ink-700); }
.legend { margin: 0; display: flex; flex-direction: column; }
.legend-row { display: flex; flex-direction: column; gap: 2px; padding: 9px 0; border-top: 1px solid var(--line); }
.legend-row:first-child { border-top: none; padding-top: 2px; }
.legend dt { font-size: 13.5px; font-weight: 800; color: var(--ink-700); }
.legend dd { margin: 0; font-size: 12.5px; color: var(--ink-sub); line-height: 1.8; }
.legend dd b { color: var(--accent-deep); }

/* ---------- 図解（知識カード） ---------- */
.dg-card { padding: 14px 16px 16px; }
.dg-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.dg-title { font-size: 15.5px; font-weight: 800; margin: 0; color: var(--ink); }
.dg-note { font-size: 11.5px; color: var(--ink-sub); margin: 11px 0 0; line-height: 1.7; }
/* 番号つき順序 */
.dg-rank { margin: 0; padding: 0; list-style: none; counter-reset: dg; display: flex; flex-direction: column; gap: 6px; }
.dg-rank li { counter-increment: dg; display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; color: var(--ink-700); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 9px 12px; }
.dg-rank li::before { content: counter(dg); flex: none; width: 22px; height: 22px; border-radius: 999px; background: var(--accent-deep); color: #fff; font-size: 12px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
/* 表 */
.dg-tablewrap { overflow-x: auto; }
.dg-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.dg-table th { text-align: left; font-size: 11px; font-weight: 700; color: var(--ink-sub); padding: 6px 8px; border-bottom: 1.5px solid var(--line-strong); white-space: nowrap; }
.dg-table td { padding: 8px; border-bottom: 1px solid var(--line); color: var(--ink-700); vertical-align: top; line-height: 1.6; }
.dg-table td.dg-th { font-weight: 700; color: var(--ink); white-space: nowrap; }
.dg-table tr:last-child td { border-bottom: none; }
/* 割合バー */
.dg-bars { display: flex; flex-direction: column; gap: 10px; }
.dg-bar-row { display: flex; align-items: center; gap: 8px; }
.dg-bar-lab { flex: none; width: 44%; font-size: 12px; color: var(--ink-700); }
.dg-bar-track { flex: 1; height: 14px; background: var(--paper-deep); border-radius: 999px; overflow: hidden; }
.dg-bar-fill { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-deep)); border-radius: 999px; }
.dg-bar-pct { flex: none; width: 34px; text-align: right; font-size: 12.5px; font-weight: 800; color: var(--accent-deep); }
.dg-go { width: 100%; margin-top: 14px; }
.dg-practice { margin-top: 14px; }
.dg-practice-cap { font-size: 11px; font-weight: 700; color: var(--ink-sub); }
.dg-practice-row { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.dg-practice-row .dg-go { flex: 1 1 30%; width: auto; margin-top: 0; padding: 9px 4px; }

/* ---------- 学習カレンダー（草ヒートマップ） ---------- */
.heat { display: flex; gap: 6px; align-items: flex-start; }
.heat-days { display: flex; flex-direction: column; gap: 3px; padding-top: 18px; flex: none; }
.heat-days span { height: 13px; line-height: 13px; font-size: 9px; color: var(--ink-faint); }
.heat-grid-scroll { overflow-x: auto; padding-bottom: 2px; }
.heat-grid-scroll::-webkit-scrollbar { height: 5px; }
.heat-grid-scroll::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }
.heat-months { display: grid; gap: 3px; height: 15px; }
.heat-mlabel { font-size: 9px; color: var(--ink-faint); white-space: nowrap; }
.heat-grid { display: grid; grid-auto-flow: column; grid-template-rows: repeat(7, 13px); gap: 3px; margin-top: 0; }
.heat-cell { width: 13px; height: 13px; border-radius: 2px; background: var(--paper-deep); cursor: default; }
.heat-cell.heat-0 { background: var(--heat-0); }
.heat-cell.heat-1 { background: var(--heat-1); }
.heat-cell.heat-2 { background: var(--heat-2); }
.heat-cell.heat-3 { background: var(--heat-3); }
.heat-cell.heat-future { background: transparent; }
.heat-cell[data-act] { cursor: pointer; }
.heat-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.heat-cap { font-size: 12px; color: var(--ink-sub); }
.heat-legend { display: inline-flex; align-items: center; gap: 3px; font-size: 10.5px; color: var(--ink-faint); }
.heat-legend i { width: 11px; height: 11px; border-radius: 2px; display: inline-block; }
.heat-stats { font-size: 12.5px; color: var(--ink-sub); margin: 10px 0 0; }
.heat-stats b { color: var(--accent-deep); }

/* ---------- 試験カウントダウン & 学習ペース ---------- */
.exam-card { text-align: center; }
.exam-cta-head { font-weight: 800; color: var(--ink); font-size: 15px; }
.exam-cta-sub { font-size: 12.5px; color: var(--ink-sub); margin: 8px 0 14px; line-height: 1.6; }
.exam-head { display: flex; align-items: center; justify-content: space-between; font-weight: 800; color: var(--ink-sub); font-size: 13px; }
.exam-edit { background: none; border: 1px solid var(--line-strong); color: var(--ink-sub); border-radius: 999px; padding: 3px 12px; font-size: 12px; cursor: pointer; }
.exam-count { margin: 6px 0 2px; line-height: 1; }
.exam-days { font-size: 52px; font-weight: 900; color: var(--accent-deep); letter-spacing: -1px; }
.exam-days.exam-today-d { font-size: 38px; }
.exam-days.exam-past { color: var(--ink-faint); }
.exam-days-u { font-size: 18px; font-weight: 800; color: var(--ink-sub); margin-left: 3px; }
.exam-date { font-size: 13px; color: var(--ink-sub); font-weight: 700; }
.exam-plan { font-size: 13.5px; color: var(--ink); line-height: 1.7; margin-top: 12px; }
.exam-plan b { color: var(--accent-deep); }
.exam-plan small { color: var(--ink-faint); font-size: 11.5px; }
.exam-bar { height: 8px; background: var(--paper-deep); border-radius: 999px; overflow: hidden; margin: 12px 0 6px; }
.exam-bar-fill { height: 100%; background: var(--accent); border-radius: 999px; transition: width .35s ease; }
.exam-today-line { font-size: 12.5px; color: var(--ink-sub); }
.exam-today-line b { color: var(--accent-deep); }
.exam-ready-lab { font-size: 13px; color: var(--ink); font-weight: 700; margin-top: 14px; }
.exam-ready-lab b { color: var(--accent-deep); font-size: 18px; }
.exam-ready-tot { font-weight: 600; color: var(--ink-sub); font-size: 12px; }
.exam-form-title { font-size: 15px; margin: 0 0 12px; text-align: left; }
.exam-field { display: flex; flex-direction: column; gap: 5px; text-align: left; font-size: 12.5px; font-weight: 700; color: var(--ink-sub); margin-bottom: 12px; }
.exam-field input, .exam-field select { font-size: 15px; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: var(--r-sm); background: var(--paper); color: var(--ink); font-family: inherit; }
.exam-form-btns { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.exam-form-btns .exam-clear { margin-left: auto; color: var(--red); }
.exam-hint { font-size: 11.5px; color: var(--ink-faint); line-height: 1.6; margin: 12px 0 0; text-align: left; }

/* ---------- 連続学習のごほうび ---------- */
.celebrate { display: flex; align-items: center; gap: 12px; background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, var(--card)), color-mix(in srgb, var(--accent) 8%, var(--card))); border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--card)); border-radius: var(--r-lg); padding: 14px 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.celebrate-emoji { font-size: 28px; line-height: 1; }
.celebrate-body { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.celebrate-body b { font-size: 14.5px; color: var(--accent-deep); }
.celebrate-body span { font-size: 12px; color: var(--ink-sub); }
.celebrate-x { background: none; border: none; color: var(--ink-faint); font-size: 15px; cursor: pointer; padding: 4px; line-height: 1; align-self: flex-start; }
.pill-streak { background: color-mix(in srgb, var(--accent) 13%, var(--card)); color: var(--accent-deep); border-color: color-mix(in srgb, var(--accent) 28%, var(--card)); }
.streak-line { font-size: 12.5px; color: var(--ink-sub); text-align: center; margin: 10px 0 0; }
.streak-line b { color: var(--accent-deep); }

/* ---------- テーマカラー・ピッカー ---------- */
.theme-swatches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.theme-sw { display: flex; flex-direction: column; align-items: center; gap: 7px; background: none; border: 1px solid var(--line); border-radius: var(--r-md); padding: 12px 6px; cursor: pointer; font-family: inherit; transition: border-color .12s, box-shadow .12s; }
.theme-sw.on { border-color: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 32%, transparent); }
.theme-dot { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-strong); }
.theme-name { font-size: 11px; color: var(--ink-sub); font-weight: 700; text-align: center; line-height: 1.3; }
.theme-note { font-size: 11.5px; color: var(--ink-faint); margin: 12px 0 0; line-height: 1.6; }

/* ---------- 4択（2級・選択問題） ---------- */
.choices { display: grid; gap: 9px; margin-top: 4px; }
.choice {
  width: 100%; text-align: left; font: inherit; font-size: 14.5px; font-weight: 500; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  padding: 13px 15px; cursor: pointer; transition: background .12s, border-color .12s, transform .05s; line-height: 1.6;
}
.choice:hover { background: #fff; border-color: var(--accent); }
.choice:active { transform: scale(.99); }

/* ---------- 級（レベル）トグル ---------- */
.level-toggle { display: flex; flex-wrap: wrap; gap: 3px; background: var(--paper-deep); border: 1px solid var(--line-strong); border-radius: var(--r-md); padding: 3px; }
.lvl { flex: 1 1 28%; font: inherit; font-size: 12.5px; font-weight: 700; color: var(--ink-sub); background: transparent; border: none; border-radius: 999px; padding: 8px 2px; cursor: pointer; white-space: nowrap; transition: background .12s, color .12s; }
.lvl.on { background: var(--card); color: var(--accent-deep); box-shadow: 0 1px 2px rgba(60,50,20,.08); }

/* ---------- 記述（2級・自己採点） ---------- */
.kj-input {
  width: 100%; font: inherit; font-size: 14.5px; color: var(--ink); line-height: 1.7;
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  padding: 11px 13px; margin: 4px 0 14px; resize: vertical; box-sizing: border-box;
}
.kj-input:focus-visible { outline: 2px solid var(--accent-deep); outline-offset: 2px; }
.kj-your { font-size: 13px; color: var(--ink-700); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 9px 12px; margin-bottom: 12px; line-height: 1.7; white-space: pre-wrap; }
.kj-your-cap { display: block; font-size: 10.5px; font-weight: 700; color: var(--ink-faint); margin-bottom: 3px; }
.kj-model { background: var(--paper); border-radius: var(--r-md); border-left: 3px solid var(--accent); padding: 12px 14px; margin-bottom: 4px; }
.kj-cap { font-size: 11.5px; font-weight: 800; color: var(--accent-deep); margin: 0 0 5px; }
.kj-cap:not(:first-child) { margin-top: 12px; }
.kj-model-text { font-size: 14px; color: var(--ink-700); line-height: 1.9; margin: 0; }
.kj-points { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 5px; }
.kj-points li { font-size: 13px; color: var(--ink-700); line-height: 1.6; padding-left: 22px; position: relative; }
.kj-points li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 800; }

/* ---------- フォーカス可視化（キーボード/スイッチ操作） ---------- */
.ox:focus-visible, .conf-chip:focus-visible, .catpick:focus-visible, .choice:focus-visible,
.btn:focus-visible, .tab:focus-visible, .link-back:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 2px;
}