/* ===== TOEIC Part 7 演習アプリ 共通スタイル ===== */

:root {
  /* ベース: 白 + やわらかいミント背景 */
  --bg: #f1faf7;
  --surface: #ffffff;
  /* テキストはネイビー系でやさしく */
  --text: #3e4a5a;
  --text-muted: #7c8a9c;
  --border: #e5eeeb;
  /* メインカラー: 落ち着いたティール */
  --primary: #4ec7b4;
  --primary-dark: #37b3a0;
  --primary-soft: #e2f6f1;
  --primary-ink: #2b8577;
  /* アクセント: 珊瑚レッド(CTA専用) */
  /* CTA(会員登録ボタン風の紅ピンク)。860/hard のコーラル系とは別色 */
  --cta: #f26d7e;
  --cta-dark: #e85a6c;
  --cta-soft: #fdecee;
  /* 正誤(セマンティック) */
  --correct: #34b39c;
  --correct-soft: #e3f6f0;
  --wrong: #ff6f6f;
  --wrong-soft: #ffe9e9;
  --warn: #e0a13a;
  --danger: #ff6f6f;
  --easy: #34b39c;
  --medium: #e0a13a;
  --hard: #ff7a6b;
  --radius: 14px;
  --radius-lg: 16px;
  --shadow: 0 1px 2px rgba(62, 74, 90, 0.04), 0 8px 24px -14px rgba(62, 74, 90, 0.16);
  --maxw: 820px;
  /* 本番紙面(グレースケール)用 */
  --serif: Georgia, "Times New Roman", "Times", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --paper: #ffffff;
  --paper-ink: #1f1f1f;
  --paper-sub: #555555;
  --paper-line: #9a9a9a;
  --paper-line-soft: #cfcfcf;
  --paper-fill: #f2f2f2;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-ink); }

/* ---- Layout ---- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 16px; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand { font-weight: 800; font-size: 1.1rem; text-decoration: none; color: var(--text); letter-spacing: 0.01em; }
.brand span { color: var(--primary); }
.site-header nav a { margin-left: 14px; font-size: 0.9rem; text-decoration: none; color: var(--primary-ink); font-weight: 600; }

.page-title { font-size: 1.7rem; font-weight: 800; letter-spacing: 0.01em; margin: 12px 0 6px; }
.page-lead { color: var(--text-muted); margin: 0 0 24px; font-size: 0.98rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: inherit;
  font-weight: 700;
  padding: 13px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--cta);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 6px 14px -8px rgba(242, 109, 126, 0.6);
  transition: background 0.15s, transform 0.05s, box-shadow 0.15s;
  min-height: 46px;
}
.btn:hover { background: var(--cta-dark); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }
.btn-ghost {
  background: var(--surface);
  color: var(--cta-dark);
  border-color: var(--border);
  box-shadow: none;
}
.btn-ghost:hover { background: var(--cta-soft); border-color: var(--cta); }
.btn-block { display: flex; width: 100%; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- Badges: 塗りつぶしの淡色 + 濃い文字色 ---- */
.badge {
  display: inline-block;
  font-size: 0.73rem;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.badge-easy { background: var(--correct-soft); color: var(--primary-ink); }
.badge-medium { background: #fbf0d9; color: #b07d1f; }
/* 難易度hardバッジは 860(コーラル)系に合わせ、CTAのピンクとは区別する */
.badge-hard { background: #ffe7e2; color: #d9503d; }
.badge-type { background: #e8f1ef; color: #40756a; }
/* スコアバッジはカードのパステル(下の .set-card.score-* で定義) */
.badge-score { background: var(--accent-soft, #e8f1ef); color: var(--accent-ink, #40756a); }
.badge-industry { background: #eef1f5; color: #66748a; }

/* ===== Top page: filter/sort controls ===== */
.controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}
.filter-group { display: flex; align-items: center; gap: 10px; min-width: 0; }
.filter-label {
  flex: 0 0 auto;
  width: 4.5em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}
.chip-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 2px 2px 6px;
  scroll-snap-type: x proximity;
}
.chip-row::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  padding: 9px 14px;
  min-height: 38px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.chip:hover { border-color: var(--primary); }
.chip.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.chip-all.is-active {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
}
.sort-group { align-items: center; }
.sort-select {
  font: inherit;
  font-size: 0.9rem;
  padding: 9px 12px;
  min-height: 40px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.result-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.link-btn {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
}
.empty-state {
  text-align: center;
  padding: 40px 16px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}
.empty-state p { margin: 0 0 14px; font-weight: 600; color: var(--text); }

/* ===== Top page: set list ===== */
.set-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.set-card {
  --accent: #9fb0bd;
  --accent-soft: #eef2f4;
  --accent-ink: #5b6b7a;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 24px 22px;
  box-shadow: var(--shadow);
  color: inherit;
  overflow: hidden;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}
/* 左端のスコアパステルのアクセントバー */
.set-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: var(--accent);
}
.set-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 2px 4px rgba(62, 74, 90, 0.05), 0 18px 36px -18px rgba(62, 74, 90, 0.26);
}

/* スコアレベル別パステル（600=ミント / 730=ラベンダー / 860=コーラル / 930=スカイ） */
.set-card.score-600 { --accent: #3fbfa6; --accent-soft: #e2f5f0; --accent-ink: #1f8571; }
.set-card.score-730 { --accent: #9b8be4; --accent-soft: #edeafb; --accent-ink: #5c49b3; }
.set-card.score-860 { --accent: #ff8574; --accent-soft: #ffe8e3; --accent-ink: #d9503d; }
.set-card.score-930 { --accent: #5bb0e6; --accent-soft: #e6f2fb; --accent-ink: #2b78b6; }

.set-card .meta-tags { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }

.set-card-title {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.5;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
}
.set-card .card-foot {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.82rem; color: var(--text-muted);
  margin-top: -4px;
}
.set-card .card-actions-row { margin-top: 4px; }
.set-card .card-foot .foot-link {
  font-size: 0.82rem; font-weight: 700; color: var(--primary-ink);
  text-decoration: none; white-space: nowrap;
}
.set-card .card-foot .foot-link:hover { text-decoration: underline; }

/* ===== 解説ページ (kaisetsu/setXX.html) ===== */
.kaisetsu { padding-bottom: 48px; }
.crumb { font-size: 0.82rem; color: var(--text-muted); margin: 6px 0 14px; }
.crumb a { color: var(--primary-ink); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }
.kaisetsu .page-title { font-size: 1.5rem; }
.kaisetsu-meta { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0 16px; }
.kaisetsu-cta { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.kaisetsu h2 {
  font-size: 1.2rem; font-weight: 800; margin: 34px 0 12px;
  padding-bottom: 6px; border-bottom: 2px solid var(--border);
}
.kaisetsu-passage {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.kaisetsu-trans {
  margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border);
}
.kaisetsu-trans .trans-label { font-size: 0.8rem; font-weight: 700; color: var(--text-muted); margin-bottom: 4px; }
.kaisetsu-trans .doc-body { color: var(--text); }

.kaisetsu-q {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 4px solid var(--primary); border-radius: var(--radius);
  padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--shadow);
  scroll-margin-top: 16px; /* #qN 深リンク時に上端へ余白 */
}
.kaisetsu-q h3 { margin: 0 0 8px; font-size: 1.05rem; font-weight: 800; }
.kaisetsu-q .q-prompt { font-weight: 700; margin: 0 0 2px; }
.kaisetsu-q .q-prompt-ja { color: var(--text-muted); margin: 0 0 10px; font-size: 0.92rem; }
.kaisetsu-choices { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 6px; }
.kaisetsu-choices li {
  padding: 9px 13px; border: 1.5px solid var(--border); border-radius: 10px;
  font-size: 0.95rem;
}
.kaisetsu-choices li.correct {
  border-color: var(--correct); background: var(--correct-soft); font-weight: 700;
}
.kaisetsu-choices li .mark { color: var(--primary-ink); font-weight: 700; margin-left: 8px; }
.kaisetsu-q h4 { margin: 12px 0 4px; font-size: 0.9rem; color: var(--primary-dark); }
.kaisetsu-q .exp-box, .kaisetsu-q .ev-box {
  background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 0.95rem;
  white-space: pre-wrap; word-break: break-word; margin: 0;
}
.kaisetsu-q .ev-box { border-left: 3px solid var(--primary); font-family: var(--serif); }

/* ===== 攻略ガイド (guide/) ===== */
/* トップの導線バナー */
.guide-banner {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: inherit;
  background: #eef7f4; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px; margin-bottom: 18px;
  transition: border-color 0.15s, background 0.15s;
}
.guide-banner:hover { border-color: var(--primary); background: var(--primary-soft); }
.guide-banner-icon { font-size: 1.25rem; line-height: 1; }
.guide-banner-text { flex: 1; font-size: 0.95rem; }
.guide-banner-go { color: var(--primary-ink); font-weight: 800; }
.site-header nav a { color: var(--primary-ink); }

/* トップの販売導線バナー(BOOTH) — 販売色 #f26d7e 系 */
.booth-banner { background: #fdeef0; border-color: #f6c6cd; }
.booth-banner:hover { border-color: #f26d7e; background: #fbe0e4; }
.booth-banner .guide-banner-go { color: #d94f61; }

/* 有料セット直リンク時の案内（演習・印刷ページ） */
.paywall-box {
  max-width: 560px; margin: 40px auto; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 28px; box-shadow: var(--shadow);
}
.paywall-icon { font-size: 2.4rem; line-height: 1; margin-bottom: 8px; }
.paywall-title { font-size: 1.3rem; font-weight: 800; margin: 0 0 12px; }
.paywall-lead { color: var(--text-muted); font-size: 0.98rem; margin: 0 0 24px; }
.paywall-lead strong { color: var(--cta-dark); }
.paywall-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* 記事一覧カード（.set-card を流用） */
.guide-card { cursor: pointer; text-decoration: none; color: inherit; }
.guide-card .meta-tags { justify-content: flex-start; }
.guide-card .guide-date { font-size: 0.8rem; color: var(--text-muted); }
.guide-card-desc { margin: 0; color: var(--text-muted); font-size: 0.92rem; }
.guide-card-go { margin-top: 2px; color: var(--cta-dark); font-weight: 700; font-size: 0.9rem; }

/* 記事本文 */
.article { padding-bottom: 40px; }
.page-title .h1-sub {
  display: block; margin-top: 8px;
  font-size: 0.6em; font-weight: 700; color: var(--text-muted); letter-spacing: 0.01em;
}
.article-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em; background: var(--bg); border: 1px solid var(--border);
  border-radius: 5px; padding: 1px 6px;
}
.article-cta-inline {
  margin-top: 8px; font-size: 1.05rem;
}
.article-cta-inline a { color: var(--cta-dark); text-decoration: none; }
.article-cta-inline a:hover { text-decoration: underline; }
.article-meta {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  color: var(--text-muted); font-size: 0.85rem; margin: 8px 0 20px;
}
.article-body { font-size: 1.02rem; line-height: 1.9; }
.article-body h2 {
  font-size: 1.35rem; font-weight: 800; margin: 36px 0 12px;
  padding-bottom: 6px; border-bottom: 2px solid var(--border);
}
.article-body h3 { font-size: 1.12rem; font-weight: 700; margin: 24px 0 8px; }
.article-body p { margin: 0 0 1.1em; }
.article-body ul, .article-body ol { margin: 0 0 1.2em; padding-left: 1.4em; }
.article-body li { margin: 0.35em 0; }
.article-body blockquote {
  margin: 0 0 1.2em; padding: 10px 16px; border-left: 4px solid var(--primary);
  background: var(--bg); border-radius: 0 8px 8px 0; color: var(--text);
}
/* 記事本文中の表 */
.article-body .table-wrap { overflow-x: auto; margin: 0 0 1.4em; }
.article-body table {
  width: 100%; border-collapse: collapse; font-size: 0.96rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.article-body th, .article-body td {
  padding: 9px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top;
}
.article-body thead th {
  background: var(--primary-soft); color: var(--primary-ink); font-weight: 700; white-space: nowrap;
}
.article-body tbody tr:last-child td { border-bottom: 0; }
.article-body tbody tr:nth-child(even) td { background: #fafcfb; }
/* 記事末尾の商標注記 */
.article-trademark { margin: 28px 0 0; font-size: 0.8rem; color: var(--text-muted); font-style: italic; }

/* 関連セット枠 */
.related-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin: 30px 0;
  box-shadow: var(--shadow);
}
.related-box h2 { margin: 0 0 12px; font-size: 1.1rem; font-weight: 800; border: none; padding: 0; }
.related-list { display: flex; flex-direction: column; }
.related-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 10px 0; border-bottom: 1px dashed var(--border);
}
.related-item:last-child { border-bottom: none; }
.related-name { font-weight: 700; }
.related-links a { text-decoration: none; font-weight: 700; font-size: 0.88rem; margin-left: 14px; color: var(--primary-ink); }
.related-links a:hover { text-decoration: underline; }
.related-tag { display: inline-block; font-size: 0.72rem; font-weight: 800; padding: 1px 8px; border-radius: 999px; margin-left: 8px; vertical-align: middle; }
.related-tag.free { color: var(--primary-ink); background: var(--primary-soft); }
.related-tag.paid { color: var(--cta-dark); background: var(--cta-soft); }

/* ===== フル模試(exam) 受験・採点 ===== */
/* 上部バー(通しタイマー常時表示・スティッキー) */
.exam-bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 0 0 18px; padding: 10px 14px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.exam-bar-left { display: flex; align-items: center; gap: 10px; }
.exam-progress { font-weight: 800; font-size: 0.95rem; }
.exam-timer { font-variant-numeric: tabular-nums; font-weight: 800; font-size: 1.05rem; color: var(--primary-ink); }
.exam-timer.over { color: var(--wrong); }
.exam-bar.result .exam-timer { color: var(--text-muted); }

/* 区分タグ(single=ミント / double=青 / triple=ピンク) */
.exam-section-tag { font-size: 0.72rem; font-weight: 800; padding: 2px 10px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-ink); }
.exam-section-tag.section-double { background: #eaeefb; color: #4a5bb0; }
.exam-section-tag.section-triple { background: var(--cta-soft); color: var(--cta-dark); }

/* 下部ナビ(次のセットへ／採点。残り時間を併記・スティッキー) */
.exam-nav {
  position: sticky; bottom: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px; margin-top: 20px; padding: 12px 0 14px;
  background: linear-gradient(to top, var(--bg) 72%, rgba(241,250,247,0));
}
.exam-nav-progress { font-size: 0.88rem; color: var(--text-muted); font-weight: 700; white-space: nowrap; }
.exam-nav .btn { flex: 1; }
.nav-remain { font-weight: 700; font-size: 0.9rem; opacity: 0.92; margin-left: 6px; }

/* 区分別 成績・時間配分 */
.exam-sections { margin-top: 24px; }
.exam-sec-table { display: flex; flex-direction: column; gap: 8px; }
.exam-sec-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center;
  padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.exam-sec-row .sec-acc { font-weight: 800; }
.exam-sec-row .sec-pct { color: var(--text-muted); font-weight: 600; font-size: 0.9rem; }
.exam-sec-row .sec-time { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.exam-sec-row .sec-time-std { color: var(--text-muted); font-weight: 600; font-size: 0.84rem; }
.sec-diff.over { color: var(--wrong); }
.sec-diff.under { color: var(--correct); }
/* 区分別の一言アドバイス(速さ×正答率の判定文) */
.exam-sec-row .sec-advice {
  grid-column: 1 / -1;
  margin-top: 4px; padding: 8px 12px;
  font-size: 0.9rem; font-weight: 600; line-height: 1.55;
  border-radius: 8px; border-left: 3px solid var(--border);
}
.sec-advice.good    { background: var(--correct-soft); border-left-color: var(--correct); color: var(--primary-ink); }
.sec-advice.caution { background: #fbf1df; border-left-color: var(--warn); color: #8a6216; }
.sec-advice.warn    { background: var(--wrong-soft); border-left-color: var(--wrong); color: #b33b3b; }
.exam-slowest { margin: 14px 0 0; padding: 12px 14px; background: var(--cta-soft); border-radius: var(--radius); font-size: 0.96rem; line-height: 1.6; }
.exam-slowest .exam-slowest-cta { font-weight: 700; }
.exam-slowest .exam-slowest-link { color: var(--primary-ink); font-weight: 800; text-decoration: none; white-space: nowrap; }
.exam-slowest .exam-slowest-link:hover { text-decoration: underline; }

/* 設問レビュー(kaisetsu 深リンク) */
.exam-review { margin-top: 28px; }
.exam-review-set { margin-bottom: 18px; }
.exam-review-head { font-size: 1.05rem; font-weight: 800; margin: 0 0 6px; display: flex; align-items: center; gap: 10px; }
.exam-review-q {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 6px; border-bottom: 1px solid var(--border); font-size: 0.92rem;
}
.exam-review-q .status-dot {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.75rem; font-weight: 800;
}
.exam-review-q.ok .status-dot { background: var(--correct); }
.exam-review-q.ng .status-dot { background: var(--wrong); }
.exam-review-q .rq-num { font-weight: 800; min-width: 34px; }
.exam-review-q .rq-ans .k { color: var(--text-muted); font-size: 0.8rem; margin: 0 2px 0 8px; }
.exam-review-q .rq-link { margin-left: auto; color: var(--primary-ink); font-weight: 700; text-decoration: none; white-space: nowrap; }
.exam-review-q .rq-link:hover { text-decoration: underline; }

@media (max-width: 560px) {
  .exam-sec-row { grid-template-columns: 1fr auto; }
  .exam-sec-row .sec-time { grid-column: 1 / -1; text-align: left; }
}

/* トップの「フル模試」導線カード */
.exam-cta-card {
  display: flex; align-items: center; gap: 14px; text-decoration: none; color: inherit;
  background: linear-gradient(135deg, #e9f8f3 0%, #f4fbf8 100%);
  border: 1px solid #bfe8dd; border-radius: var(--radius-lg);
  padding: 16px 18px; margin-bottom: 18px;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.exam-cta-card:hover { border-color: var(--primary); box-shadow: 0 12px 28px -18px rgba(55,179,160,.55); transform: translateY(-2px); }
.exam-cta-icon { font-size: 1.7rem; line-height: 1; }
.exam-cta-body { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.exam-cta-title { font-size: 1.05rem; font-weight: 800; }
.exam-cta-sub { font-size: 0.9rem; color: var(--text-muted); }
.exam-cta-go {
  flex: none; font-weight: 800; color: #fff; background: var(--primary-dark);
  padding: 10px 18px; border-radius: 12px; white-space: nowrap;
  box-shadow: 0 6px 14px -8px rgba(55,179,160,.7);
}
.exam-cta-card:hover .exam-cta-go { background: var(--primary-ink); }
@media (max-width: 560px) {
  .exam-cta-card { flex-wrap: wrap; }
  .exam-cta-go { width: 100%; text-align: center; }
}

.guide-cta { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 8px; }

/* ===== Practice ===== */
.practice-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px;
}
.timer {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.2rem;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}
.timer.over { background: var(--wrong-soft); color: var(--wrong); border-color: var(--wrong); }
.progress-note { font-size: 0.85rem; color: var(--text-muted); }

.passage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

/* ===================================================================
   二画面 演習レイアウト（解答画面のみ・≥960px）
   左=本文 / 右=設問、各ペインが独立スクロール（入れ子スクロールなし）。
   960px 未満は従来の縦積み（本文の下に設問）。採点画面・print.html は対象外。
   分割比・最大幅は下の変数1箇所で調整可能。
   =================================================================== */
:root {
  --solve-split: 66%;    /* 左(本文)の比率。右(設問)は残り 1fr。6:4→66% など1行で変更 */
  --solve-maxw: 1180px;  /* 二画面時の演習コンテナ最大幅 */
}
/* 既定（狭幅・非solving）は通常フロー＝縦積み */
.solve-cols { display: block; }

/* 演習中はサイトヘッダーを隠し、上部情報を1本のコンパクトバー(.solve-bar)に集約して高さを圧縮 */
body.solving .site-header { display: none; }
.solve-bar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap;
  padding: 8px 14px; margin-bottom: 14px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.solve-bar-title { font-weight: 800; font-size: 1rem; letter-spacing: .01em; }
.solve-bar-meta { font-size: 0.9rem; color: var(--text-muted); font-weight: 700; }
.solve-bar-dot { color: var(--border); }
.solve-bar .meta-tags { display: inline-flex; gap: 6px; margin: 0; }
.solve-bar-timer { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 800; font-size: 1.02rem; color: var(--primary-ink); }
.solve-bar-timer.over { color: var(--wrong); }
.solve-bar-exit { font-size: 0.82rem; font-weight: 700; color: var(--text-muted); text-decoration: none; white-space: nowrap; }
.solve-bar-exit:hover { color: var(--wrong); text-decoration: underline; }

@media (min-width: 960px) {
  /* solving 中のみ、ページをビューポート高に固定して各ペインを独立スクロールさせる */
  body.solving { height: 100dvh; overflow: hidden; display: flex; flex-direction: column; }
  body.solving main.wrap {
    flex: 1 1 auto; min-height: 0;
    display: flex; flex-direction: column;
    max-width: var(--solve-maxw); padding-bottom: 0;
  }
  /* 上部(タイマー・見出し)と下部(採点/次へ)は自然高、中央の2ペインが伸縮 */
  body.solving .solve-cols {
    flex: 1 1 auto; min-height: 0;
    display: grid; grid-template-columns: var(--solve-split) 1fr; gap: 22px;
  }
  body.solving .solve-pane {
    min-height: 0; overflow-y: auto; overscroll-behavior: contain;
    padding: 2px 6px 10px 2px;
  }
  body.solving .solve-pane.solve-questions {
    border-left: 1px solid var(--border); padding-left: 20px;
  }
  /* 二画面時、下部バーは sticky/グラデ不要（フレーム最下部に自然配置） */
  body.solving .submit-bar,
  body.solving .exam-nav { position: static; background: none; margin-top: 12px; }
  body.solving .solve-passages .passage:last-child { margin-bottom: 4px; }
}

/* ===================================================================
   本番紙面風の文書スタイル（グレースケール / セリフ本文）
   practice.html と print.html の両方で共通使用
   =================================================================== */
.doc-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 10px;
}
.doc { color: var(--paper-ink); }
.doc-serif { font-family: var(--serif); }
.doc-body { line-height: 1.75; word-break: break-word; }
.doc-body p { margin: 0 0 0.9em; }
.doc-body p:last-child { margin-bottom: 0; }
.doc-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper-ink);
  margin: 0 0 10px;
  font-family: var(--serif);
}
.doc-list { margin: 0.6em 0; padding-left: 1.5em; }
.doc-list li { margin: 0.25em 0; }

/* --- email / letter / memo --- */
.doc-email { }
.doc-head {
  border: 1px solid var(--paper-line);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 14px;
}
.doc-head-row {
  display: flex;
  gap: 10px;
  padding: 7px 12px;
  border-bottom: 1px solid var(--paper-line-soft);
  font-family: var(--serif);
  font-size: 0.95rem;
}
.doc-head-row:last-child { border-bottom: none; }
.doc-head-key {
  flex: 0 0 auto;
  min-width: 4.5em;
  font-weight: 700;
  color: var(--paper-sub);
}
.doc-head-val { color: var(--paper-ink); word-break: break-word; }

/* --- web-page --- */
.doc-web {
  border: 1px solid var(--paper-line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--paper);
}
.doc-web-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--paper-fill);
  border-bottom: 1px solid var(--paper-line);
}
.doc-web-dots { display: inline-flex; gap: 5px; flex: 0 0 auto; }
.doc-web-dots i {
  width: 10px; height: 10px; border-radius: 50%;
  border: 1px solid var(--paper-line); background: #fff;
}
.doc-web-url {
  flex: 1;
  background: #fff;
  border: 1px solid var(--paper-line-soft);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.85rem;
  color: var(--paper-sub);
  font-family: var(--serif);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.doc-web-page { padding: 14px 16px; }
.doc-web-title { font-weight: 700; font-size: 1.15rem; font-family: var(--serif); margin-bottom: 8px; }

/* --- form / receipt / schedule (表) --- */
.doc-sheet { }
.doc-sheet .doc-title { text-align: center; }
.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--serif);
  font-size: 0.95rem;
  margin: 4px 0;
}
.doc-table th, .doc-table td {
  border: 1px solid var(--paper-line);
  padding: 7px 11px;
  vertical-align: top;
}
.doc-table thead th {
  background: var(--paper-fill);
  font-weight: 700;
  color: var(--paper-ink);
}
.doc-table .al-left { text-align: left; }
.doc-table .al-center { text-align: center; }
.doc-table .al-right { text-align: right; font-variant-numeric: tabular-nums; }
.doc-table .doc-total td { background: #fafafa; }
.doc-table .doc-total.is-strong td { font-weight: 700; border-top: 2px solid var(--paper-ink); background: var(--paper-fill); }
.doc-notes { margin-top: 10px; font-family: var(--serif); font-size: 0.9rem; }
.doc-notes-title { font-weight: 700; margin-bottom: 2px; }
.doc-notes ol { margin: 0; padding-left: 1.5em; }
.doc-notes li { margin: 0.2em 0; }
.doc-sheet-note { margin-top: 12px; font-size: 0.9rem; color: var(--paper-sub); }
.doc-pre {
  white-space: pre-wrap; word-break: break-word;
  margin: 0; font-size: 0.95rem; line-height: 1.7;
}

/* --- advertisement --- */
.doc-ad {
  border: 2px solid var(--paper-ink);
  border-radius: 4px;
  padding: 6px;
}
.doc-ad-inner {
  border: 1px solid var(--paper-line);
  padding: 18px 20px;
}
.doc-ad-title {
  text-align: center;
  font-weight: 800;
  font-style: italic;
  font-size: 1.2rem;
  font-family: var(--serif);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
  color: var(--paper-ink);
}
.doc-ad .doc-list { padding-left: 1.3em; }

/* --- チャット / テキストメッセージ --- */
.doc-chat-wrap .doc-title { margin-bottom: 12px; }
.doc-chat { display: flex; flex-direction: column; gap: 10px; }
.doc-chat-row {
  border: 1px solid var(--paper-line-soft);
  border-left: 3px solid var(--paper-line);
  border-radius: 4px;
  padding: 8px 12px;
  font-family: var(--serif);
}
.doc-chat-meta { display: flex; gap: 10px; align-items: baseline; margin-bottom: 2px; }
.doc-chat-name { font-weight: 700; font-size: 0.9rem; }
.doc-chat-time { font-size: 0.78rem; color: var(--paper-sub); }
.doc-chat-text { font-size: 0.95rem; line-height: 1.6; }

/* --- plain (notice / article 等) --- */
.doc-plain .doc-title { font-size: 1.1rem; }

.question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.question .q-head { display: flex; gap: 8px; align-items: baseline; margin-bottom: 10px; }
.question .q-num {
  flex: 0 0 auto;
  font-weight: 700; color: var(--primary);
  background: var(--primary-soft);
  border-radius: 8px; padding: 2px 9px; font-size: 0.9rem;
}
.question .q-prompt { font-weight: 600; margin: 0; }

.choices { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.choice {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 13px 15px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.12s, background 0.12s;
  min-height: 44px;
}
.choice:hover { border-color: var(--primary); }
.choice.selected { border-color: var(--primary); background: var(--primary-soft); }
.choice .letter {
  flex: 0 0 auto;
  width: 26px; height: 26px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
  border: 1.5px solid var(--border); color: var(--text-muted);
  background: #fff;
}
.choice.selected .letter { background: var(--primary); color: #fff; border-color: var(--primary); }
.choice input { display: none; }

/* result-marked choices */
.choice.is-correct { border-color: var(--correct); background: var(--correct-soft); }
.choice.is-correct .letter { background: var(--correct); color: #fff; border-color: var(--correct); }
.choice.is-wrong { border-color: var(--wrong); background: var(--wrong-soft); }
.choice.is-wrong .letter { background: var(--wrong); color: #fff; border-color: var(--wrong); }
.choice .mark { margin-left: auto; font-weight: 700; }
.choice.is-correct .mark { color: var(--correct); }
.choice.is-wrong .mark { color: var(--wrong); }

.submit-bar {
  position: sticky; bottom: 0;
  background: linear-gradient(to top, var(--bg) 70%, rgba(241, 250, 247, 0));
  padding: 14px 0 4px;
  margin-top: 8px;
}

/* ===== Result ===== */
.score-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  text-align: center;
  margin-bottom: 18px;
}
.score-big { font-size: 2.8rem; font-weight: 800; line-height: 1.1; color: var(--primary-ink); }
.score-big .total { font-size: 1.4rem; color: var(--text-muted); font-weight: 700; }
.score-pct { color: var(--text-muted); margin-top: 2px; }
.score-stats { display: flex; justify-content: center; gap: 26px; margin-top: 14px; flex-wrap: wrap; }
.score-stats .stat .num { font-weight: 700; font-size: 1.1rem; }
.score-stats .stat .lbl { font-size: 0.8rem; color: var(--text-muted); }

.result-q {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.result-q.ok { border-left-color: var(--correct); }
.result-q.ng { border-left-color: var(--wrong); }

.acc-head {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  background: none; border: none; cursor: pointer;
  font: inherit; text-align: left; color: inherit;
}
.acc-head .status-dot {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 0.8rem;
}
.result-q.ok .status-dot { background: var(--correct); }
.result-q.ng .status-dot { background: var(--wrong); }
.acc-head .acc-q { flex: 1; font-weight: 600; font-size: 0.95rem; }
.acc-head .chevron { transition: transform 0.2s; color: var(--text-muted); }
.acc-head[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.acc-body { padding: 0 16px 16px; display: none; }
.acc-body.open { display: block; }
.acc-body .ans-line { font-size: 0.9rem; margin: 8px 0; }
.acc-body .ans-line .k { color: var(--text-muted); }
.acc-body .ans-correct { color: var(--correct); font-weight: 700; }
.acc-body .ans-yours-ng { color: var(--wrong); font-weight: 700; }
.acc-body h4 { margin: 14px 0 4px; font-size: 0.9rem; color: var(--primary-dark); }
.acc-body .box {
  background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 0.92rem;
  white-space: pre-wrap; word-break: break-word;
}
.acc-body .evidence { border-left: 3px solid var(--primary); }

.translation-block { margin-top: 18px; }
.translation-block .passage-body { color: var(--text); }

/* ===== Utility ===== */
.center { text-align: center; }
.mt-16 { margin-top: 16px; }
.muted { color: var(--text-muted); }
.loading, .error-box { padding: 40px 16px; text-align: center; color: var(--text-muted); }
.error-box { color: var(--wrong); }
.hidden { display: none !important; }

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .set-grid { grid-template-columns: 1fr 1fr; }
  .page-title { font-size: 1.7rem; }
}

/* ===== Print page (print.html) ===== */
.print-toolbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 12px 16px; position: sticky; top: 0; z-index: 30;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.print-sheet { max-width: 800px; margin: 0 auto; padding: 24px 20px; background: #fff; color: #000; }
.print-sheet h1 { font-size: 1.4rem; margin: 0 0 4px; }
.print-meta { color: #333; font-size: 0.9rem; margin-bottom: 18px; }
.print-passage { margin-bottom: 20px; }
.print-q { margin-bottom: 14px; page-break-inside: avoid; }
.print-q .p-num { font-weight: 700; }
.print-q ol { list-style: none; margin: 6px 0 0; padding: 0; }
.print-q ol li { padding: 2px 0; }

.answer-sheet {
  margin-top: 28px; border-top: 2px solid #000; padding-top: 14px; page-break-inside: avoid;
}
.answer-sheet h2 { font-size: 1.05rem; margin: 0 0 10px; }
.bubble-row { display: flex; align-items: center; gap: 12px; padding: 5px 0; border-bottom: 1px dashed #bbb; }
.bubble-row .b-num { width: 34px; font-weight: 700; }
.bubbles { display: flex; gap: 14px; }
.bubble {
  width: 26px; height: 26px; border: 1.6px solid #000; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center; font-size: 0.8rem;
}

@media print {
  .print-toolbar, .site-header, .no-print { display: none !important; }
  body { background: #fff; }
  .print-sheet { max-width: none; margin: 0; padding: 0; }
  /* 紙面のグレー塗り・罫線を確実に印刷する */
  .doc, .doc-table th, .doc-table td, .doc-total td, .doc-web-bar,
  .doc-web-url, .doc-head, .doc-ad, .doc-chat-row {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .doc-table, .doc-ad, .doc-head, .doc-web { page-break-inside: avoid; }
  .doc-table tr, .doc-chat-row { page-break-inside: avoid; }
  @page { margin: 16mm 14mm; }
}

/* ===== 赤ペン解説: annotations / readingFlow ===== */
:root { --pen: #e0384f; --pen-soft: #fde7ea; --pen-ink: #b8283c; --mark-hl: #ffe870; --mark-hl-ink: #7a5c00; }

/* 本文中のインライン注釈 */
.ann { position: relative; }
/* 根拠 = 蛍光ペン風の淡い黄色マーカー */
.ann-hl .ann-txt {
  background: linear-gradient(transparent 8%, var(--mark-hl) 8%, var(--mark-hl) 90%, transparent 90%);
  border-radius: 1px;
}
/* 罠・注意 = 赤下線 */
.ann-ul .ann-txt {
  border-bottom: 2px solid var(--pen);
  padding-bottom: 1px;
}
.ann-ref {
  font-size: 0.62em;
  line-height: 0;
  color: #fff;
  background: var(--pen);
  border-radius: 999px;
  padding: 0.15em 0.42em;
  margin-left: 2px;
  font-weight: 700;
  vertical-align: super;
  font-family: system-ui, sans-serif;
}

/* 赤ペンメモ(注釈一覧) */
.ann-notes-wrap {
  margin: 12px 0 4px;
  border: 1px solid var(--pen-soft);
  border-left: 3px solid var(--pen);
  border-radius: 10px;
  background: #fff;
  padding: 10px 12px;
}
.ann-notes-title {
  color: var(--pen-ink);
  font-weight: 700;
  font-size: 0.82rem;
  margin-bottom: 6px;
}
.ann-notes { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.ann-note { display: flex; gap: 8px; align-items: flex-start; font-size: 0.88rem; line-height: 1.55; }
.ann-note-num {
  flex: none; width: 20px; height: 20px; margin-top: 1px;
  display: grid; place-items: center;
  background: var(--pen); color: #fff; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; font-family: system-ui, sans-serif;
}
.ann-note-body { color: var(--text); }
.ann-note-kind {
  display: inline-block; font-size: 0.66rem; font-weight: 700;
  padding: 0.05em 0.5em; border-radius: 999px; margin-right: 6px; vertical-align: 1px;
}
.ann-hl-chip { background: var(--mark-hl); color: var(--mark-hl-ink); }
.ann-ul-chip { background: transparent; color: var(--pen-ink); border: 1px solid var(--pen); }
.ann-qlink { color: var(--pen-ink); font-weight: 700; margin-left: 6px; white-space: nowrap; }

/* 解き方の実況 */
.reading-flow {
  margin: 18px 0;
  border: 1px solid var(--border);
  border-top: 3px solid var(--pen);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 14px 16px 6px;
}
.rf-title { color: var(--pen-ink); font-weight: 700; font-size: 0.95rem; margin-bottom: 10px; }
.rf-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.rf-step { display: flex; gap: 10px; align-items: flex-start; padding-bottom: 10px; border-bottom: 1px dashed var(--border); }
.rf-step:last-child { border-bottom: none; }
.rf-num {
  flex: none; width: 24px; height: 24px;
  display: grid; place-items: center;
  background: var(--pen-soft); color: var(--pen-ink);
  border-radius: 999px; font-weight: 700; font-size: 0.8rem; font-family: system-ui, sans-serif;
}
.rf-text { color: var(--text); font-size: 0.92rem; line-height: 1.65; }
.rf-qtag {
  display: inline-block; margin-left: 6px; font-size: 0.68rem; font-weight: 700;
  color: var(--primary-ink); background: var(--primary-soft);
  padding: 0.05em 0.5em; border-radius: 999px; vertical-align: 1px;
}

/* 結果画面の本文再表示 */
.result-passages { margin: 14px 0 6px; }
.result-sec-title { font-size: 1.02rem; margin: 6px 0 10px; }

/* ===== 赤ペン解説の印刷保証（カラー＝そのまま／モノクロ＝代替表現で判別可能） ===== */
@media print {
  /* 背景色・バッジ色をそのまま印刷（カラープリンタ用） */
  .ann-hl .ann-txt, .ann-ul .ann-txt, .ann-ref,
  .ann-notes-wrap, .ann-note-num, .ann-note-kind,
  .reading-flow, .rf-num, .rf-qtag {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  /* ハイライト(根拠): 黄マーカー＋“網掛け＋太字＋下罫線”を重ね、モノクロで薄グレーになっても判別可能に */
  .ann-hl .ann-txt {
    background-color: var(--mark-hl);
    background-image: repeating-linear-gradient(45deg,
      rgba(0,0,0,0.10) 0, rgba(0,0,0,0.10) 1.2px, transparent 1.2px, transparent 4px);
    font-weight: 700;
    box-shadow: inset 0 -0.14em 0 rgba(0,0,0,0.30);
  }
  /* 罠・注意(下線): モノクロでも濃く出る実線に */
  .ann-ul .ann-txt { border-bottom: 2px solid #222; }
  /* 番号バッジ: 濃い塗り＋白抜き数字＝グレースケールでも塊として残る */
  .ann-ref, .ann-note-num { background: #222 !important; color: #fff !important; }
  .rf-num { background: #e6e6e6 !important; color: #222 !important; border: 1px solid #222; }
  /* 赤ペンメモ枠・実況枠: 罫線主体で判別（塗りに依存しない） */
  .ann-notes-wrap { border: 1px solid #555; border-left: 3px solid #222; }
  .reading-flow { border: 1px solid #555; border-top: 3px solid #222; box-shadow: none; }
  .ann-notes-title, .rf-title { color: #111; }
  /* メモの種別チップ: 文字（「下線」「ハイライト」）で意味を明示。枠線で識別 */
  .ann-hl-chip { background: var(--mark-hl); color: #4a3800; border: 1px solid #222; }
  .ann-ul-chip { background: #fff; color: #111; border: 1px solid #222; }
  .ann-qlink, .rf-qtag { color: #111; background: #eee !important; border: 1px solid #999; }
  /* ページ分割時に赤ペンメモ／実況ステップが割れないように */
  .ann-notes-wrap, .reading-flow { page-break-inside: avoid; }
  .rf-step, .ann-note { page-break-inside: avoid; }
}