/* /guide（オンライン英会話の予習・復習ガイド）専用 CSS。docs/guide-page-mock.html の <style> を移したもの。
   このページは base.html を継承する（ログイン後はアプリのナビ・下タブ、未ログインは公開ナビ）ので:
   - 全セレクタを .hxg ラッパー配下／hxg- 接頭辞に閉じ込め、Bootstrap や style.css と衝突させない。
   - モックの html { font-size: clamp(16px, 15px + .2vw, 19px) } は採用しない（rem を動かすとログイン後の
     ナビ・下タブ・フッターまで拡大する）。代わりに .hxg に同じ clamp を --u として置き、モックの N rem を
     calc(N * var(--u)) に写した。em と違って入れ子で複利にならないので、モックと同じ実寸になる。
   - モック自身のトップバー・フッターは持ち込まない（base.html のナビと partials/_site_footer.html を使う）。
   - 監修者カード（partials/_supervisor_admin.html）の見た目は public_pages.css の hx-sup-*（管理者プレビュー時だけ読む）。 */

/* このファイルは /guide でしか読まれない。ナビは sticky ではないので、アンカー着地の余白は小さめ */
html { scroll-behavior: smooth; scroll-padding-top: 28px; }

.hxg {
  --u: clamp(16px, 15px + 0.2vw, 19px);
  --hxg-bg: #0b1528;
  --hxg-surface: #111d35;
  --hxg-surface-2: #172640;
  --hxg-surface-3: #1d2e4b;
  --hxg-text: #f0f4fa;
  --hxg-muted: #9cafcc;
  --hxg-blue: #2b6bf2;
  --hxg-cyan: #00d4ff;
  --hxg-teal: #4cc9b0;
  --hxg-amber: #e8a84c;
  --hxg-violet: #b07af5;
  --hxg-coral: #ff6b5a;
  --hxg-gold: #ffd166;
  --hxg-line: rgba(156, 175, 204, .16);
  position: relative; isolation: isolate;
  /* main.container-fluid.py-4 の上・左右の余白を打ち消し、ヒーローを全幅にする */
  margin: -1.5rem calc(var(--bs-gutter-x, 1.5rem) * -.5) 0;
  color: var(--hxg-text);
  font-family: "Noto Sans JP", system-ui, sans-serif; font-size: var(--u); line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.hxg::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: -1;
  background: radial-gradient(circle at 82% 0, rgba(43,107,242,.13), transparent calc(30 * var(--u)));
}

/* Bootstrap reboot の打ち消し（モックはブラウザ既定値の上に組まれている）。部品のルールより前に置く */
.hxg a { color: inherit; text-decoration: none; }
.hxg button, .hxg input { font: inherit; }
.hxg h1, .hxg h2, .hxg h3 { color: inherit; font-weight: 700; line-height: inherit; }
.hxg p { margin: 1em 0; }
.hxg ol, .hxg ul { margin: 1em 0; padding-left: 40px; }
.hxg dl { margin: 0; }
.hxg dd { margin: 0; }

.hxg-wrap { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.hxg-mono { font-family: "JetBrains Mono", monospace; }
.hxg-muted { color: var(--hxg-muted); }
.hxg-eyebrow { color: var(--hxg-cyan); font: 700 calc(.72 * var(--u)) Outfit, sans-serif; letter-spacing: .17em; text-transform: uppercase; }
.hxg-section-title { font: 800 clamp(calc(1.8 * var(--u)), 4vw, calc(2.8 * var(--u)))/1.18 Outfit, "Noto Sans JP", sans-serif; letter-spacing: -.03em; margin: 10px 0 14px; }
.hxg-title-line { display: block; }
.hxg-section-lead { max-width: 720px; color: var(--hxg-muted); margin: 0; font-size: calc(.94 * var(--u)); }
.hxg-section-lead a { color: var(--hxg-cyan); }
.hxg-lock::before { content: "▣"; margin-right: 5px; color: var(--hxg-amber); }

.hxg-btn {
  min-height: 42px; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 0 17px; border-radius: 11px; border: 1px solid var(--hxg-line); color: var(--hxg-text); cursor: pointer;
  background: rgba(255,255,255,.025); font-weight: 700; font-size: calc(.78 * var(--u)); transition: .2s ease;
}
.hxg-btn:hover { transform: translateY(-1px); border-color: rgba(0,212,255,.4); }
.hxg-btn-primary { background: linear-gradient(135deg,var(--hxg-blue),#4f8cff); border-color: transparent; box-shadow: 0 10px 26px rgba(43,107,242,.22); }
.hxg-btn-small { min-height: 34px; padding: 0 12px; font-size: calc(.68 * var(--u)); }

/* Hero */
.hxg-hero { padding: 74px 0 70px; border-bottom: 1px solid rgba(255,255,255,.055); }
.hxg-hero-grid { display: grid; grid-template-columns: 1fr 390px; gap: 62px; align-items: center; }
.hxg-hero h1 { font: 800 clamp(calc(2.7 * var(--u)), 5vw, calc(3.9 * var(--u)))/1.08 Outfit, "Noto Sans JP", sans-serif; letter-spacing: -.05em; margin: 15px 0 22px; word-break: keep-all; }
.hxg-hero h1 .hxg-accent { color: var(--hxg-cyan); }
.hxg-hero p { max-width: 650px; color: #b5c3d7; }
.hxg-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hxg-hero-map { margin: 14px 0 0; font-size: calc(.8 * var(--u)); }
.hxg-hero-map a { color: var(--hxg-cyan); border-bottom: 1px solid rgba(0,212,255,.35); }
.hxg-hero-google { margin: 10px 0 0; color: #91a8c3; font-size: calc(.66 * var(--u)); }
.hxg-hero-card { padding: 26px; background: linear-gradient(145deg,rgba(23,38,64,.96),rgba(13,26,49,.96)); border: 1px solid var(--hxg-line); border-radius: 24px; box-shadow: 0 24px 70px rgba(0,0,0,.22); }
.hxg-hero-card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.hxg-hero-card-head strong { font: 700 calc(.83 * var(--u)) Outfit, "Noto Sans JP", sans-serif; }
.hxg-hero-card-head .hxg-eyebrow { font-size: calc(.58 * var(--u)); }
.hxg-progress-ring { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--hxg-cyan) var(--hxg-progress,0%),rgba(255,255,255,.08) 0); position: relative; }
.hxg-progress-ring::before { content: ""; position: absolute; width: 46px; height: 46px; border-radius: 50%; background: var(--hxg-surface-2); }
.hxg-progress-ring span { position: relative; font: 700 calc(.65 * var(--u)) Outfit, sans-serif; }
.hxg-mini-checks { display: grid; gap: 9px; }
.hxg-mini-check { display: flex; align-items: center; gap: 9px; color: var(--hxg-muted); font-size: calc(.72 * var(--u)); }
.hxg-mini-check i { width: 19px; height: 19px; display: grid; place-items: center; border-radius: 6px; border: 1px solid var(--hxg-line); font-style: normal; font-size: calc(.6 * var(--u)); }
.hxg-mini-check.hxg-done { color: var(--hxg-text); }
.hxg-mini-check.hxg-done i { background: var(--hxg-cyan); border-color: var(--hxg-cyan); color: #062035; }
.hxg-hero-card-note { margin: 12px 0 0; font-size: calc(.6 * var(--u)); }

/* Main shell and side navigation */
.hxg-guide-shell { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 52px; padding: 58px 0 110px; }
.hxg-side-nav { position: sticky; top: 24px; align-self: start; max-height: calc(100vh - 48px); overflow: auto; padding-right: 10px; }
.hxg-side-label { color: #617696; font: 700 calc(.61 * var(--u)) Outfit, sans-serif; letter-spacing: .15em; margin: 0 0 11px 13px; }
.hxg-side-nav nav { display: grid; gap: 3px; }
.hxg-side-nav a { color: #8fa2bd; padding: 9px 12px; border-radius: 9px; font-size: calc(.75 * var(--u)); border-left: 2px solid transparent; }
.hxg-side-nav a:hover, .hxg-side-nav a.hxg-active { color: var(--hxg-text); background: rgba(43,107,242,.1); border-left-color: var(--hxg-cyan); }
.hxg-side-divider { height: 1px; background: var(--hxg-line); margin: 18px 0; }
.hxg-side-tip { padding: 14px; border-radius: 13px; background: rgba(0,212,255,.055); border: 1px solid rgba(0,212,255,.13); font-size: calc(.65 * var(--u)); color: #91a8c3; }
.hxg-guide-content > section { padding: 58px 0; border-bottom: 1px solid var(--hxg-line); }
.hxg-guide-content > section:first-child { padding-top: 0; }

/* First run */
.hxg-first-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 26px; padding: 14px 16px; border-radius: 14px; background: rgba(0,212,255,.045); border: 1px solid rgba(0,212,255,.13); }
.hxg-first-toolbar p { margin: 0; color: #a9bdd4; font-size: calc(.72 * var(--u)); }
.hxg-first-progress { color: var(--hxg-cyan); font: 700 calc(.75 * var(--u)) Outfit, sans-serif; white-space: nowrap; }
.hxg-checklist { margin-top: 18px; display: grid; gap: 12px; }
.hxg-check-card { display: grid; grid-template-columns: 48px minmax(0,1fr) auto; align-items: start; gap: 16px; padding: 22px; border: 1px solid var(--hxg-line); border-radius: 17px; background: rgba(17,29,53,.56); transition: .2s ease; }
.hxg-check-card.hxg-completed { border-color: rgba(76,201,176,.3); background: rgba(76,201,176,.035); }
.hxg-check-toggle { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.11); border-radius: 13px; background: rgba(255,255,255,.03); color: #7287a5; cursor: pointer; font-weight: 800; }
.hxg-completed .hxg-check-toggle { background: var(--hxg-teal); color: #05251f; border-color: var(--hxg-teal); }
.hxg-check-content h3 { font: 700 calc(.96 * var(--u)) Outfit, "Noto Sans JP", sans-serif; margin: 1px 0 6px; }
.hxg-check-content p { color: var(--hxg-muted); font-size: calc(.75 * var(--u)); margin: 0; }
.hxg-check-content .hxg-path { display: inline-block; margin-top: 9px; color: #7fa7ff; font-size: calc(.65 * var(--u)); }
.hxg-time { color: #7589a6; font-size: calc(.63 * var(--u)); white-space: nowrap; padding-top: 4px; }

/* Daily loop */
.hxg-daily { margin-top: 34px; display: grid; grid-template-columns: repeat(6,1fr); border: 1px solid var(--hxg-line); border-radius: 18px; overflow: hidden; }
.hxg-daily-item .hxg-screen { display: inline-block; margin-top: 9px; color: #7fa7ff; font-size: calc(.6 * var(--u)); }
.hxg-daily-item { padding: 20px 16px; background: rgba(17,29,53,.53); border-right: 1px solid var(--hxg-line); }
.hxg-daily-item:last-child { border-right: 0; }
.hxg-daily-time { color: var(--hxg-daily); font: 700 calc(.61 * var(--u)) Outfit,sans-serif; letter-spacing: .09em; word-break: keep-all; }
.hxg-daily-item h3 { font-size: calc(.8 * var(--u)); margin: 10px 0 5px; }
.hxg-daily-item p { color: var(--hxg-muted); font-size: calc(.72 * var(--u)); margin: 0; }
.hxg-daily-item.hxg-lesson-main { position: relative; z-index: 1; background: linear-gradient(145deg,rgba(255,209,102,.13),rgba(43,107,242,.1)); box-shadow: inset 0 0 0 1px rgba(255,209,102,.34); }
.hxg-daily-item.hxg-lesson-main .hxg-daily-time { color: var(--hxg-gold); }
.hxg-daily-note { margin: 14px 0 0; color: #7186a2; font-size: calc(.63 * var(--u)); text-align: center; }

/* Goal routes */
.hxg-tabs { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 28px; }
.hxg-tab-button { border: 1px solid var(--hxg-line); background: rgba(255,255,255,.025); color: #90a2bc; border-radius: 999px; padding: 9px 14px; cursor: pointer; font-size: calc(.7 * var(--u)); }
.hxg-tab-button[aria-selected="true"] { color: #07182b; background: var(--hxg-cyan); border-color: var(--hxg-cyan); font-weight: 700; }
.hxg-route-panel { margin-top: 16px; padding: 26px; border: 1px solid var(--hxg-line); border-radius: 18px; background: linear-gradient(135deg,rgba(43,107,242,.09),rgba(17,29,53,.7)); }
.hxg-route-panel[hidden] { display: none; }
.hxg-route-panel h3 { font: 700 calc(1.05 * var(--u)) Outfit,"Noto Sans JP",sans-serif; margin: 0 0 7px; }
.hxg-route-panel p { color: var(--hxg-muted); font-size: calc(.75 * var(--u)); }
.hxg-route-flow { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.hxg-route-flow span { padding: 9px 11px; border: 1px solid var(--hxg-line); border-radius: 10px; font-size: calc(.68 * var(--u)); background: rgba(255,255,255,.03); }
.hxg-route-flow i { color: #607694; font-style: normal; }
.hxg-route-links { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }
.hxg-route-more { color: var(--hxg-cyan); font-size: calc(.7 * var(--u)); border-bottom: 1px solid rgba(0,212,255,.35); }
/* 監修者カード（管理者プレビュー専用・partials/_supervisor_admin.html）の置き場だけ整える */
.hxg .hx-sup-card { margin-top: 14px; }

/* Search + reference */
.hxg-reference-toolbar { margin-top: 27px; display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.hxg-search-box { position: relative; display: block; margin: 0; }
.hxg-search-box span { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: #7187a6; }
.hxg-search-box input { width: 100%; height: 46px; border: 1px solid var(--hxg-line); border-radius: 12px; background: rgba(255,255,255,.03); color: var(--hxg-text); padding: 0 15px 0 41px; outline: none; }
.hxg-search-box input:focus { border-color: rgba(0,212,255,.48); box-shadow: 0 0 0 3px rgba(0,212,255,.07); }
.hxg-search-box input::placeholder { color: #667c9b; }
.hxg-reference-count { display: grid; place-items: center; min-width: 86px; border-radius: 12px; background: rgba(43,107,242,.09); color: #91b0f7; font-size: calc(.68 * var(--u)); }
.hxg-ref-groups { display: grid; gap: 26px; margin-top: 30px; }
.hxg-ref-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.hxg-ref-heading i { width: 9px; height: 24px; border-radius: 8px; background: var(--hxg-group); }
.hxg-ref-heading h3 { font: 700 calc(.92 * var(--u)) Outfit,"Noto Sans JP",sans-serif; margin: 0; }
.hxg-ref-list { display: grid; gap: 9px; }
.hxg-ref-item { border: 1px solid var(--hxg-line); border-radius: 15px; background: rgba(17,29,53,.54); overflow: hidden; }
.hxg-ref-item[hidden] { display: none; }
.hxg-ref-item summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 12px; padding: 17px 18px; }
.hxg-ref-item summary::-webkit-details-marker { display: none; }
.hxg-ref-icon { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 9px; background: color-mix(in srgb,var(--hxg-group) 13%,transparent); color: var(--hxg-group); font: 800 calc(.67 * var(--u)) Outfit,sans-serif; }
.hxg-ref-name strong { display: block; font-size: calc(.8 * var(--u)); }
.hxg-ref-name span { color: var(--hxg-muted); font-size: calc(.62 * var(--u)); }
.hxg-chevron { color: #7185a2; transition: transform .2s ease; }
.hxg-ref-item[open] .hxg-chevron { transform: rotate(90deg); }
.hxg-ref-body { padding: 0 18px 21px 61px; }
.hxg-how-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 9px; }
.hxg-how-card { padding: 13px 14px; border-radius: 11px; background: rgba(5,15,30,.42); border: 1px solid rgba(255,255,255,.045); }
.hxg-how-card b { display: block; color: #8196b4; font-size: calc(.59 * var(--u)); letter-spacing: .08em; margin-bottom: 4px; }
.hxg-how-card p { color: #bac6d8; font-size: calc(.68 * var(--u)); margin: 0; }
.hxg-steps { margin: 13px 0 0; padding-left: 18px; color: #aab8cb; font-size: calc(.68 * var(--u)); }
.hxg-steps li + li { margin-top: 5px; }
.hxg-tip { margin-top: 12px; padding: 11px 13px; border-left: 2px solid var(--hxg-cyan); background: rgba(0,212,255,.045); color: #9fb5cb; font-size: calc(.65 * var(--u)); }
.hxg-tip a { color: var(--hxg-cyan); }
.hxg-empty-state { display: none; padding: 26px; text-align: center; border: 1px dashed var(--hxg-line); border-radius: 14px; color: var(--hxg-muted); font-size: calc(.75 * var(--u)); }

/* Devices */
.hxg-device-grid { display: grid; grid-template-columns: 190px 1fr; gap: 22px; margin-top: 28px; }
.hxg-device-tabs { display: grid; gap: 6px; align-content: start; }
.hxg-device-tab { text-align: left; border: 1px solid transparent; border-radius: 11px; padding: 12px 13px; background: transparent; color: #879ab6; cursor: pointer; font-size: calc(.72 * var(--u)); }
.hxg-device-tab[aria-selected="true"] { border-color: var(--hxg-line); color: var(--hxg-text); background: rgba(43,107,242,.1); }
.hxg-device-panel { min-height: 230px; padding: 24px; border: 1px solid var(--hxg-line); border-radius: 18px; background: rgba(17,29,53,.55); }
.hxg-device-panel[hidden] { display: none; }
.hxg-device-panel h3 { margin: 0 0 6px; font-size: calc(.94 * var(--u)); }
.hxg-device-lead { font-size: calc(.72 * var(--u)); }
.hxg-device-foot { margin: 12px 0 0; font-size: calc(.66 * var(--u)); }
.hxg-number-steps { list-style: none; padding: 0; display: grid; gap: 12px; counter-reset: device; }
.hxg-number-steps li { counter-increment: device; display: grid; grid-template-columns: 28px 1fr; gap: 10px; color: #a9b9cd; font-size: calc(.7 * var(--u)); }
.hxg-number-steps li::before { content: counter(device); width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; color: #07182c; background: var(--hxg-cyan); font: 800 calc(.65 * var(--u)) Outfit,sans-serif; }

/* Glossary / support */
.hxg-glossary { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin-top: 26px; }
.hxg-term { padding: 17px; border: 1px solid var(--hxg-line); border-radius: 14px; background: rgba(17,29,53,.5); }
.hxg-term dt { color: var(--hxg-cyan); font-weight: 700; font-size: calc(.77 * var(--u)); }
.hxg-term dd { color: var(--hxg-muted); font-size: calc(.68 * var(--u)); margin: 6px 0 0; }
.hxg-support-list { display: grid; gap: 9px; margin-top: 26px; }
.hxg-support-list details { border: 1px solid var(--hxg-line); border-radius: 14px; padding: 0 17px; background: rgba(17,29,53,.5); }
.hxg-support-list summary { cursor: pointer; font-weight: 600; font-size: calc(.76 * var(--u)); padding: 16px 0; }
.hxg-support-list p { color: var(--hxg-muted); font-size: calc(.68 * var(--u)); margin: 0 0 17px; }
.hxg-guide-end { margin-top: 42px; padding: 34px; text-align: center; border: 1px solid rgba(0,212,255,.18); border-radius: 20px; background: linear-gradient(135deg,rgba(43,107,242,.14),rgba(0,212,255,.05)); }
.hxg-guide-end h3 { font: 800 calc(1.4 * var(--u)) Outfit,"Noto Sans JP",sans-serif; margin: 0 0 8px; }
.hxg-guide-end p { font-size: calc(.74 * var(--u)); }
.hxg-guide-end .hxg-hero-actions { justify-content: center; margin-top: 18px; }

@media (max-width: 940px) {
  .hxg-hero-grid { grid-template-columns: 1fr; }
  .hxg-hero-card { max-width: 500px; }
  .hxg-guide-shell { grid-template-columns: 1fr; }
  .hxg-side-nav { position: static; max-height: none; padding: 0; }
  .hxg-side-nav nav { display: flex; overflow-x: auto; padding-bottom: 8px; }
  .hxg-side-nav a { white-space: nowrap; border-left: 0; border-bottom: 2px solid transparent; }
  .hxg-side-nav a.hxg-active { border-left: 0; border-bottom-color: var(--hxg-cyan); }
  .hxg-side-divider, .hxg-side-tip, .hxg-side-label { display: none; }
  .hxg-daily { grid-template-columns: repeat(3,1fr); }
  .hxg-daily-item { border-bottom: 1px solid var(--hxg-line); }
}
@media (max-width: 620px) {
  .hxg-wrap { width: min(100% - 28px,1180px); }
  .hxg-hero { padding: 52px 0; }
  .hxg-hero h1 { font-size: clamp(calc(2 * var(--u)),8.6vw,calc(2.15 * var(--u))); }
  .hxg-guide-shell { padding-top: 26px; gap: 26px; }
  .hxg-guide-content > section { padding: 46px 0; }
  .hxg-check-card { grid-template-columns: 42px 1fr; padding: 18px; }
  .hxg-check-card .hxg-time { grid-column: 2; padding: 0; }
  .hxg-daily, .hxg-how-grid, .hxg-glossary { grid-template-columns: 1fr; }
  .hxg-daily-item { border-right: 0; }
  .hxg-device-grid { grid-template-columns: 1fr; }
  .hxg-device-tabs { display: flex; overflow-x: auto; }
  .hxg-device-tab { white-space: nowrap; }
  .hxg-ref-body { padding-left: 18px; }
  .hxg-reference-toolbar { grid-template-columns: 1fr; }
  .hxg-reference-count { min-height: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hxg *, .hxg *::before, .hxg *::after { transition: none !important; }
}