/* A0 10days app — cw-* palette (cards_write_theme / pattern23)
   R2: 可読性パス(全体フォントアップ・コントラスト改善) + モバイル堅牢化(vhフォールバック)
   R3: ロゴをサイト正本 (commons/css/style_v4.css .site-logo) に準拠 — Outfit/Source Code Pro・G回転・pattern23 */
@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+Thai:wght@400;500;700&family=Source+Code+Pro:wght@400;500;600;700&family=Yusei+Magic&display=swap");
/* フォント可読性(クロスチェック反映):
   - ブランド本文 Plus Jakarta Sans を実ロード(従来は宣言のみでシステム落ち・過半のロケールで消失)
   - Noto Sans Thai を実ロード(Tahoma依存回避・声調記号の組版改善, th=released)
   - 見出しの偽ボールド抑止(font-synthesis:none), 積層スクリプトの行間, 極小サイズ底上げは下部で */
:root{
  --blue:#14a8d4; --mint:#2fe5a0; --purple:#7510b8; --pink:#f36f96;
  --red:#f24822; --yellow:#f2d700; --orange:#ff9700;
  --navy:#191d27; --ink:#2c2f36; --muted:#57647c; --soft:#eef2f5;
  --bg:#f7f5f2;
  --learner-font:"Plus Jakarta Sans","Noto Sans JP","Hiragino Sans","Yu Gothic UI",sans-serif;
  --target-font:var(--learner-font);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{font-size:16px}
body{font-family:var(--learner-font);
  background:var(--bg);color:var(--ink);line-height:1.65;padding-bottom:40px;font-size:16px}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.hidden{display:none!important}

/* topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;
  background:#fff;border-bottom:3px solid var(--navy);gap:10px;flex-wrap:nowrap}
/* ロゴ正本準拠 (style_v4.css .site-logo と同一ルール) */
.logo-lockup{display:inline-flex;align-items:center;gap:8px;min-width:0}
.topbar-actions{flex:none}
.site-logo{display:inline-flex;align-items:center;gap:0.02em;font-family:"Outfit",sans-serif;
  font-size:1.7rem;font-weight:400;letter-spacing:0}
.site-logo>span{display:inline-block;line-height:0.9}
.site-logo__g{font-family:"Outfit",sans-serif;font-weight:800;transform:rotate(-45deg);transform-origin:50% 55%}
.site-logo__o{font-family:"Outfit",sans-serif;font-weight:700}
.site-logo__i{margin-left:-0.04em;font-family:"Source Code Pro",monospace;font-weight:700}
.site-logo--pattern23 .site-logo__g{color:#F24822}
.site-logo--pattern23 .site-logo__domain-ai{color:#FF9700}
.site-logo--pattern23 .site-logo__domain-game{color:#14A8D4}
.site-logo--pattern23 .site-logo__domain-study{color:#2FE5A0}
.site-logo--pattern23 .site-logo__domain-reserve1{color:#7510B8}
.logo-lockup em{font-style:normal;font-size:13px;font-weight:800;color:var(--navy)}
.topbar-actions{display:flex;gap:8px;align-items:center}
.edition-btn{font-weight:800;font-size:15px;padding:10px 16px;border-radius:999px;
  border:2.5px solid var(--navy);background:var(--yellow);box-shadow:3px 3px 0 rgba(0,0,0,.15)}
.edition-btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(0,0,0,.15)}
.lang-btn{background:#fff;font-size:17px;padding:9px 13px}
/* 設定ギア: アイコンのみの円形。ヘッダーの占有幅を詰めてロゴを埋もれさせない。 */
.icon-btn{background:#fff;font-size:17px;padding:9px 11px;line-height:1}

/* folder tabs — 2枚のタブがコンテンツ面に繋がるデザイン */
.tabwrap{max-width:800px;margin:0 auto;padding:18px 14px 0}
.folder-tabs{display:flex;position:relative;z-index:2}
.ftab{flex:1;padding:14px 8px 12px;font-weight:800;font-size:17px;text-align:center;
  border:3px solid var(--navy);border-radius:20px 20px 0 0;background:#e9e4dc;color:var(--muted);
  position:relative;top:3px}
.ftab+.ftab{margin-left:-3px}
.ftab.on{background:#fff;color:var(--navy);z-index:3;border-bottom-color:#fff}
main.panel{background:#fff;border:3px solid var(--navy);border-radius:0 0 22px 22px;
  padding:20px 16px 26px;position:relative;z-index:1}

/* 表紙 = 全画面トップページ (ベース絵 + テキストかぶせ) */
/* ブック型スプラッシュ: モバイル=表紙全面＋オーバーレイ / PC(≥860px)=本(左)＋コピー(右) */
.home{position:fixed;inset:0;z-index:40;background:#F6E174}
/* ↑ #F6E174 = ベース絵上部の実測色 (246,225,116) — 絵との境目を消す */
body.splash{overflow:hidden}
/* 表紙にも本編と同じヘッダーを出す。.home は fixed inset:0 でヘッダーを覆うため、
   splash 中だけヘッダーを最前面に固定し、.home の上端をヘッダー高ぶん下げる
   (--home-top は app.js が実測値を入れる)。 */
body.splash .topbar{position:fixed;top:0;left:0;right:0;z-index:50}
body.splash .home{top:var(--home-top,64px)}
.home-site{order:5;position:static;margin-top:12px;text-align:center}
.home-site a{display:inline-flex;align-items:center;gap:6px;text-decoration:none;
  font-weight:800;font-size:13px;color:var(--navy);background:rgba(255,255,255,.88);
  border:2px solid var(--navy);border-radius:999px;padding:6px 15px;
  box-shadow:0 2px 0 var(--navy)}
.home-site a:hover{background:#fff}
.home-book{position:absolute;inset:0;overflow:hidden}
.home-cover{display:block;width:100%;height:100%;object-fit:cover;object-position:center top}
.home-logo{position:absolute;top:16px;left:18px;z-index:4}
/* モバイル: タイトル・スタート・旗を中央にまとめる(タイトル↓/スタート↑で近づけ、旗はスタート下) */
.home-copy{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;padding:0 22px;pointer-events:none}
.home-copy>*{pointer-events:auto}
.home-flags{order:4;position:static;display:flex;gap:9px;flex-wrap:wrap;justify-content:center;max-width:none;margin:0}
.home-title{order:1;position:static;text-align:center;padding:0}
.home-title-box{display:inline-block;background:#fff;border:4px solid var(--navy);
  padding:16px 28px 14px;box-shadow:8px 8px 0 rgba(25,29,39,.28);transform:rotate(-1.5deg)}
.ct-sub{display:block;font-family:"Yusei Magic",var(--learner-font);
  font-size:clamp(15px,4.2vw,24px);color:var(--navy);letter-spacing:1px;
  border-bottom:3px solid var(--yellow);padding-bottom:6px;margin-bottom:8px}
/* Yusei Magic は単一ウェイト(400)。太字指定時の偽ボールドにじみを抑止 */
.ct-sub,.ct-main,.start-btn,.home-desc{font-synthesis-weight:none}
/* 積層スクリプト(タイ/ラオ/クメール/ミャンマー)は母音・声調記号が上下に付くため行間を確保 */
html[lang="th"] body{line-height:1.72}
html[lang="lo"] body,html[lang="km"] body,html[lang="my"] body{line-height:1.85}
html[lang="my"] .ct-main,html[lang="km"] .ct-main,html[lang="lo"] .ct-main{line-height:1.4}
.ct-main{display:block;font-family:"Yusei Magic",var(--learner-font);
  font-size:clamp(26px,7.4vw,46px);line-height:1.1;color:var(--red);letter-spacing:.5px;white-space:nowrap}
.home-desc{order:2;display:none}
.home-actions{order:3;position:static;display:flex;flex-direction:column;
  align-items:center;gap:10px;padding:0;pointer-events:auto}
.home-actions .start-btn{width:auto;max-width:340px}
.start-btn{font-family:"Yusei Magic",var(--learner-font);font-size:clamp(19px,5vw,24px);
  color:#fff;background:var(--red);border:3px solid var(--navy);border-radius:999px;
  padding:14px 44px;box-shadow:5px 5px 0 rgba(25,29,39,.3);animation:pulse 1.8s infinite}
.start-btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 rgba(25,29,39,.3)}
.start-btn.ghost{background:#fff;color:var(--navy);box-shadow:4px 4px 0 rgba(25,29,39,.22);animation:none}
.home-link{font-weight:800;font-size:13.5px;color:var(--navy);background:rgba(255,255,255,.8);
  border:2px solid var(--navy);border-radius:999px;padding:6px 16px;margin-top:2px}
@media(min-width:860px){
  .home{background:radial-gradient(1100px 640px at 50% -12%, #FBE79A, #EAE3D5 78%) !important;
    display:flex;align-items:center;justify-content:center;gap:clamp(32px,6vw,80px);padding:40px}
  .home-book{position:static;flex:none;height:min(80vh,760px);aspect-ratio:1200/2150;
    border:4px solid var(--navy);border-radius:18px;overflow:hidden;transform:rotate(-2deg);
    box-shadow:16px 20px 0 rgba(25,29,39,.2), 0 26px 60px rgba(0,0,0,.28)}
  .home-copy{position:static;inset:auto;flex:none;width:min(380px,38vw);align-items:flex-start;
    justify-content:center;gap:0;padding:0;pointer-events:auto}
  .home-flags{position:static;justify-content:flex-start;max-width:none;margin:18px 0 0}
  .home-title{position:static;text-align:left;padding:0}
  .ct-main{font-size:clamp(30px,3.4vw,42px)}
  .home-title-box{padding:14px 22px 12px}
  .home-desc{display:block;font-family:"Yusei Magic",var(--learner-font);
    font-size:clamp(16px,1.35vw,20px);line-height:1.75;color:var(--navy);margin:18px 0 4px}
  .home-actions{position:static;align-items:stretch;padding:0;gap:12px}
  .home-actions .start-btn{width:100%;max-width:none}
  .home-link{align-self:center}
}
.home-lang{font-weight:800;font-size:14.5px;padding:10px 16px;border-radius:999px;
  border:2.5px solid var(--navy);background:#fff;box-shadow:3px 3px 0 rgba(0,0,0,.15)}
/* サイトSVG国旗 (assets/flags)。絵文字国旗のWindows非表示対策 */
.flag-svg{width:30px;height:20px;object-fit:cover;border-radius:4px;display:inline-block;vertical-align:middle;
  box-shadow:0 0 0 1px rgba(0,0,0,.18)}
.mbtn .flag-svg{width:24px;height:16px;border-radius:3px}
.edition-btn .flag-svg{width:22px;height:15px;border-radius:3px}
.locale-flag .flag-svg,.course-flag .flag-svg{width:28px;height:19px}
.lang-assist summary .flag-svg{width:20px;height:14px;border-radius:2px}
.flag{font-size:22px;line-height:1;width:44px;height:38px;border-radius:11px;border:2.5px solid var(--navy);
  background:#fff;box-shadow:2px 2px 0 rgba(0,0,0,.18);display:grid;place-items:center;filter:saturate(.55) opacity(.85)}
.flag.on{filter:none;background:var(--yellow);transform:translateY(-1px);box-shadow:2px 3px 0 rgba(0,0,0,.25)}
.flag:active{transform:translate(1px,1px);box-shadow:none}

/* 英語サポート併記 (EN assist) */
.en-assist{margin-top:6px}
.en-assist summary{display:inline-block;cursor:pointer;font-size:10.5px;font-weight:800;color:var(--muted);
  background:var(--soft);border:1.5px solid var(--navy);border-radius:999px;padding:1px 10px;list-style:none;user-select:none}
.en-assist summary::-webkit-details-marker{display:none}
.en-assist[open] summary{background:var(--yellow);color:var(--navy)}
.en-assist>div{margin-top:6px;font-size:12.5px;color:var(--muted);background:var(--soft);
  border-left:3px solid var(--navy);border-radius:0 10px 10px 0;padding:8px 12px;line-height:1.6}

/* しおり (つづきから) */
.shiori{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--soft);
  border:2.5px dashed var(--navy);border-radius:16px;padding:12px 16px;margin-bottom:20px}
.shiori .bm{font-size:22px}
.shiori .tx{flex:1;min-width:150px}
.shiori .tx b{font-size:15.5px}
.shiori .tx small{display:block;font-size:12.5px;color:var(--muted);font-weight:700}
.shiori .bar{height:12px;border-radius:999px;background:#fff;border:2px solid var(--navy);
  overflow:hidden;margin-top:6px}
.shiori .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--mint),var(--blue));border-radius:999px}
.shiori .cbtn{background:var(--mint)}

/* timeline (10ステップ縦並び) */
.tl{display:flex;flex-direction:column}
.tl-item{display:flex;gap:14px}
.tl-rail{display:flex;flex-direction:column;align-items:center;flex:none;width:44px}
.tl-dot{width:44px;height:44px;border-radius:50%;background:var(--dc);color:#fff;font-weight:800;
  font-size:18px;display:flex;align-items:center;justify-content:center;border:3px solid var(--navy);flex:none}
.tl-item.done .tl-dot{background:#fff;color:var(--dc)}
.tl-rail::after{content:"";flex:1;width:5px;background:var(--navy);opacity:.18;border-radius:99px;margin:6px 0}
.tl-item:last-child .tl-rail::after{display:none}
.tl-card{flex:1;background:#fff;border:3px solid var(--navy);border-radius:18px;padding:16px;
  margin-bottom:18px;box-shadow:4px 4px 0 var(--dc);min-width:0}
/* シーンサムネ */
.thumb{position:relative;flex:none;width:74px;height:74px;border-radius:14px;overflow:hidden;
  border:2.5px solid var(--navy);background:var(--dc);display:flex;align-items:center;justify-content:center}
.thumb .tf{font-size:32px}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.thumb[data-day="D03"] img{object-position:center top}
.thumb.big{width:92px;height:92px;border-radius:16px}
.thumb.big .tf{font-size:40px}
.tl-item.cur .tl-card{box-shadow:6px 6px 0 var(--dc);border-width:3.5px}
.tl-item.done .tl-card{opacity:.82}
.tl-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tl-day{font-weight:800;font-size:14px;color:#fff;background:var(--dc);border-radius:999px;
  padding:3px 13px;border:2px solid var(--navy)}
.tl-req{font-size:12px;font-weight:800;padding:3px 10px;border-radius:999px;border:2px solid var(--navy);
  background:var(--yellow)}
.tl-req.pick{background:#fff;color:var(--muted)}
.tl-here{font-size:12.5px;font-weight:800;color:var(--red);animation:pulse 1.4s infinite}
.tl-badge{margin-left:auto;font-size:20px}
.lesson-meta{display:flex;flex-direction:column;gap:4px;margin:10px 0 0}
.lesson-meta-row{display:flex;align-items:center;gap:8px;min-width:0}
.lesson-icon{width:22px;height:22px;flex:none;display:grid;place-items:center;color:var(--dc)}
.lesson-icon-svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lesson-meta-title{font-size:21px;font-weight:800;margin:0;line-height:1.35}
.lesson-meta-row--goal{color:var(--muted);font-size:15px;font-weight:700;line-height:1.5}
.lesson-meta-row--goal p{margin:0}
.tl-visual-wrap{position:relative;margin-top:14px;border:2.5px solid var(--navy);border-radius:16px;overflow:hidden;
  background:var(--dc);box-shadow:3px 3px 0 rgba(25,29,39,.14)}
.thumb.lesson-visual{width:100%;height:248px;border:0;border-radius:0;display:block}
.thumb.lesson-visual .tf{font-size:72px}
.tl-start{position:absolute;left:14px;right:14px;bottom:14px;border:2.5px solid var(--navy);border-radius:999px;
  padding:13px 16px;background:#fff;color:var(--navy);font-size:16px;font-weight:800;
  box-shadow:3px 3px 0 var(--dc)}
.tl-start:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--dc)}
.tl-vocab{margin-top:16px}
.tl-vocab-head{font-size:15.5px;font-weight:800;margin-bottom:9px}
.tl-decks{display:grid;grid-template-columns:1fr 1fr;gap:8px}
@media(max-width:430px){.tl-decks{grid-template-columns:1fr}}
.tl-deck{font-weight:800;font-size:13px;line-height:1.5;color:var(--ink);background:var(--soft);
  border:2px solid var(--navy);border-radius:13px;padding:10px 12px;text-align:left;
  box-shadow:2px 2px 0 rgba(0,0,0,.1)}
.tl-deck span{display:block}
.tl-deck b{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.tl-deck:active{transform:translate(1px,1px);box-shadow:none}
@media(max-width:430px){.thumb.lesson-visual{height:200px}.tl-card{padding:14px}.tl-start{bottom:12px}}
@media(max-width:430px){.lesson-meta-title{font-size:19px}.lesson-meta-row--goal{font-size:14px}.lesson-icon{width:21px;height:21px}}
.day-actions{display:flex;gap:12px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.deck-label{font-weight:800;font-size:15px;color:var(--navy)}
.drill .prog{margin-top:-22px}

/* day map */
.daygrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:16px}
.daycard{background:#fff;border:3px solid var(--navy);border-radius:18px;padding:18px 15px 14px;
  position:relative;text-align:left;box-shadow:4px 4px 0 var(--dc);transition:transform .1s}
.daycard:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--dc)}
.daycard .dnum{position:absolute;top:-14px;left:12px;background:var(--dc);color:#fff;font-weight:800;
  font-size:13px;padding:3px 13px;border-radius:999px;border:2px solid var(--navy)}
.daycard .req{position:absolute;top:-14px;right:10px;font-size:12px;font-weight:800;padding:3px 10px;
  border-radius:999px;border:2px solid var(--navy);background:var(--yellow)}
.daycard h3{font-size:17px;font-weight:800;margin:8px 0 4px;line-height:1.45}
.daycard p{font-size:13.5px;color:var(--muted);line-height:1.55}
.daycard .done{position:absolute;bottom:8px;right:10px;font-size:20px}

/* day view */
.day-nav{display:flex;align-items:center;justify-content:flex-start;gap:12px;margin-bottom:12px}
.back{font-weight:800;font-size:15px;color:var(--navy);background:#fff;display:inline-block;padding:8px 12px;
  border:2px solid var(--navy);border-radius:999px;text-decoration:none;box-shadow:2px 2px 0 var(--dc)}
.back:active{transform:translate(1px,1px);box-shadow:none}
.dayhead{background:#fff;border:3px solid var(--navy);border-radius:18px;overflow:hidden;
  box-shadow:5px 5px 0 var(--dc);margin-bottom:20px}
.day-hero-wrap{position:relative}
.thumb.day-hero{width:100%;height:clamp(230px,42vw,350px);border:0;border-radius:0;display:block}
.thumb.day-hero .tf{font-size:72px}
.day-hero-day{position:absolute;top:14px;left:14px;background:var(--dc);z-index:1}
.dayhead-info{background:color-mix(in srgb,var(--dc) 17%,#fff);border-top:3px solid var(--navy);padding:15px 18px 17px}
.lesson-meta.day{margin:0}
.lesson-meta.day .lesson-meta-title{font-size:22px}
.day-section{margin-top:24px}
.sect{font-size:18px;font-weight:800;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.sect-icon{width:23px;height:23px;display:grid;place-items:center;flex:none;color:var(--dc)}
.sect-icon .lesson-icon-svg{width:100%;height:100%}
.section-note{font-size:13px;color:var(--muted);margin:-4px 0 10px}
.conversation-card{background:color-mix(in srgb,var(--dc) 12%,#fff);border:2.5px solid var(--navy);border-radius:16px;
  padding:16px 18px 18px;box-shadow:3px 3px 0 rgba(25,29,39,.14)}
.conversation-copy{font-size:16px;font-weight:800;line-height:1.65;margin:0}
.conversation-note{font-size:13px;color:var(--muted);font-weight:700;line-height:1.6;margin:6px 0 14px}
/* フッターナビ: 戻る/次へを常に1行・同サイズ(戻る左寄せ・次へ右寄せ) */
.day-footer-nav{display:flex;align-items:stretch;gap:10px;margin-top:28px;padding-top:18px;border-top:2px solid var(--navy)}
.day-nav-btn{min-height:56px;flex:1 1 0;min-width:0;display:flex;flex-direction:column;justify-content:center;
  font-weight:800;font-size:15px;line-height:1.3;border:2.5px solid var(--navy);
  border-radius:15px;padding:10px 14px;box-shadow:3px 3px 0 var(--dc)}
.day-nav-btn:active{transform:translate(1px,1px);box-shadow:1px 1px 0 var(--dc)}
.day-nav-btn--back{background:#fff;color:var(--navy);align-items:flex-start;text-align:left}
.day-nav-btn--next{background:var(--dc);color:#fff;align-items:flex-end;text-align:right}
.day-nav-btn--next span{display:block;font-size:12px;margin-top:2px}
@media(max-width:400px){.day-nav-btn{font-size:13.5px;padding:9px 11px}}
.phrase-card{background:#fff;border:2.5px solid var(--navy);border-radius:14px;padding:14px 16px;
  margin-bottom:12px;display:flex;gap:14px;align-items:center}
.phrase-card .txt{flex:1;min-width:0}
.phrase-card .vi,.phrase-card .target-main{font-size:19px;font-weight:800;color:var(--navy);line-height:1.5}
.phrase-card .ja,.phrase-card .gloss-main{font-size:14px;color:var(--muted);margin-top:2px}
.phrase-card .slot{font-size:13px;font-weight:700;color:var(--purple);margin-top:4px}
.phrase-card .alt{font-size:13px;font-weight:700;color:#0d7fa3;margin-top:4px}
.pbtn{width:48px;height:48px;border-radius:50%;flex:none;border:2.5px solid var(--navy);
  background:var(--mint);font-size:18px;box-shadow:2px 2px 0 rgba(0,0,0,.15)}
.pbtn.pending{background:var(--soft);font-size:15px}
.pbtn:active{transform:translate(1px,1px);box-shadow:none}
.letters-note{background:#fff;border:3px dashed var(--blue);border-radius:16px;padding:18px;font-size:15px}
.letters-note li{margin-left:22px}
/* 文字・発音コマ */
.abc-sec{background:#fff;border:3px solid var(--navy);border-radius:18px;padding:18px;margin-bottom:18px;
  box-shadow:4px 4px 0 rgba(20,168,212,.3)}
.abc-step{display:inline-block;font-weight:800;font-size:12.5px;color:#fff;background:var(--blue);
  border-radius:999px;padding:3px 14px;border:2px solid var(--navy);margin-bottom:8px}
.abc-sec h3{font-size:18px;font-weight:800;margin-bottom:6px}
.abc-sec p{font-size:14px;color:var(--muted);margin-bottom:8px;line-height:1.7}
.tagv,.tagc{font-weight:800;color:var(--navy)}
.abc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:10px;margin-top:10px}
.abc-tile{background:#fff;border:2.5px solid var(--navy);border-radius:14px;padding:9px 4px 7px;
  display:flex;flex-direction:column;align-items:center;gap:1px;box-shadow:2.5px 2.5px 0 rgba(0,0,0,.12)}
.abc-tile:active{transform:translate(1px,1px);box-shadow:none}
.abc-tile .al{font-size:27px;font-weight:800;color:var(--navy);line-height:1.2}
/* 大文字/小文字セット表示 (A/a)。スラッシュは控えめに */
.al.pair{letter-spacing:.5px}
.al.pair i{font-style:normal;font-weight:700;opacity:.35;font-size:.72em;margin:0 1px;vertical-align:1px}
.abc-tile .al.pair{font-size:22px}
.abc-tile.mini .al.pair{font-size:16.5px}
.name-tile .al.pair{font-size:18px}
.cmp-tile .al.pair{font-size:27px}
.abc-tile .asnd{font-size:12px;font-weight:700;color:var(--muted)}
.abc-tile .ahint{font-size:11px;font-weight:700;color:var(--purple);line-height:1.35;text-align:center;margin-top:2px}
.abc-tile.sp{border-color:var(--purple)}
.abc-grid.all{grid-template-columns:repeat(auto-fill,minmax(46px,1fr));gap:7px}
.abc-grid.name{grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:8px}
.name-tile{padding:7px 3px 6px}
.name-tile .al{font-size:22px}
.name-tile .asnd{font-size:12.5px;font-weight:800;color:var(--purple)}
.abc-tile.mini{padding:6px 2px;border-radius:11px}
.abc-tile.mini .al{font-size:21px}
.abc-tile.mini.vw .al{color:var(--blue)}
.abc-tile.mini.cs .al{color:var(--red)}
.abc-callout{margin-top:16px;background:var(--soft);border:3px dashed var(--red);border-radius:16px;padding:14px}
.abc-callout h4{font-size:15.5px;font-weight:800;margin-bottom:10px}
.cmp-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cmp-tile{background:#fff;border:2.5px solid var(--navy);border-radius:14px;padding:10px 8px;
  display:flex;flex-direction:column;align-items:center;gap:2px;box-shadow:2.5px 2.5px 0 rgba(0,0,0,.12)}
.cmp-tile:active{transform:translate(1px,1px);box-shadow:none}
.cmp-tile .al{font-size:34px;font-weight:800;color:var(--navy);line-height:1.1}
.cmp-tile .asnd{font-size:12px;font-weight:700;color:var(--muted)}
.cmp-tile .cdesc{font-size:11.5px;font-weight:700;color:var(--ink);text-align:center;line-height:1.55;margin-top:4px}
.cmp-tile.playing{background:var(--yellow)}
.cnote{font-size:12.5px;color:var(--muted);margin-top:10px;font-weight:700}
.abc-callout.vfam{border-color:var(--blue)}
.fam-row{display:flex;flex-wrap:wrap;gap:8px}
.fam{font-size:19px;font-weight:800;color:var(--blue);background:#fff;border:2.5px solid var(--navy);
  border-radius:999px;padding:5px 16px;letter-spacing:2px}
.cmp-row.three{grid-template-columns:repeat(auto-fit,minmax(105px,1fr))}
/* 読めるかなチェック */
.readcheck{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-top:12px}
.rc-card{background:#fff;border:2.5px solid var(--navy);border-radius:16px;padding:14px 12px;
  display:flex;flex-direction:column;align-items:center;gap:6px;box-shadow:3px 3px 0 rgba(0,0,0,.12)}
.rc-card.checked{border-color:var(--mint);box-shadow:3px 3px 0 rgba(47,229,160,.5)}
.rc-word{font-size:27px;font-weight:800;color:var(--navy);line-height:1.2;text-align:center}
.rc-tags{font-size:11px;font-weight:700;color:var(--purple);text-align:center;line-height:1.5}
.rc-ans{font-size:13px;font-weight:700;color:var(--ink)}
.rc-btn{font-size:13.5px;padding:8px 14px;background:var(--yellow)}
.ed-choice b{font-size:16px}
.ed-choice small{color:var(--muted);font-weight:600;line-height:1.5;display:block;margin-top:3px}
.abc-tile.playing,.tone-tile.playing{background:var(--yellow);transform:scale(1.06)}
.seq-row{text-align:center;margin-top:14px}
.tone-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(105px,1fr));gap:10px;margin-top:10px}
.tone-tile{background:#fff;border:2.5px solid var(--navy);border-radius:14px;padding:10px 6px 8px;
  display:flex;flex-direction:column;align-items:center;gap:2px;box-shadow:2.5px 2.5px 0 rgba(0,0,0,.12)}
.tone-tile .tmark{font-size:30px;font-weight:800;color:var(--red);line-height:1.1}
.tone-tile .tsyl{font-size:17px;font-weight:800;color:var(--navy)}
.tone-tile .tdesc{font-size:10.5px;font-weight:700;color:var(--muted);text-align:center;line-height:1.4}

/* skit player */
.skit-open{width:100%;font-weight:800;font-size:16px;color:#fff;background:var(--navy);
  border-radius:999px;padding:13px 16px;border:2.5px solid var(--navy);box-shadow:3px 3px 0 var(--dc)}
.player{position:fixed;inset:0;background:rgba(25,29,39,.55);z-index:50;display:flex;
  align-items:center;justify-content:center;padding:14px}
.player .sheet{background:#fff;border-radius:24px;border:3px solid var(--navy);
  width:min(760px,100%);
  max-height:92vh;max-height:94dvh;   /* dvh非対応ブラウザはvhへフォールバック */
  display:flex;flex-direction:column;
  overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;
  box-shadow:8px 8px 0 rgba(0,0,0,.25);
  padding-bottom:14px;padding-bottom:max(14px, env(safe-area-inset-bottom))}
.stage{position:relative;height:260px;background:var(--dc);overflow:hidden;flex:none;border-radius:21px 21px 0 0}
.thumb.skit-scene{width:100%;height:100%;border:0;border-radius:0;display:block}
.thumb.skit-scene .tf{font-size:72px}
.scene-caption{position:absolute;left:0;right:0;bottom:0;padding:12px 64px 12px 16px;
  color:#fff;background:var(--dc);font-weight:800;font-size:15px;line-height:1.55;text-wrap:balance}
.stage .close{position:absolute;top:10px;right:12px;width:38px;height:38px;border-radius:50%;
  background:#fff;border:2.5px solid var(--navy);font-weight:800;font-size:16px;z-index:3}
.chipdock{display:flex;gap:18px;justify-content:center;padding:14px 16px 2px;margin-top:0;position:relative;z-index:2;flex-wrap:wrap}
.chip{display:flex;flex-direction:column;align-items:center;gap:3px;transition:transform .15s}
.chip img{width:116px;height:116px;border-radius:50%;object-fit:cover;object-position:top;
  border:4px solid var(--navy);background:#fff;filter:saturate(.5);transition:all .15s}
@media(max-width:430px){.stage{height:205px}.scene-caption{padding:10px 56px 10px 12px;font-size:13.5px}.chip img{width:88px;height:88px}.chipdock{gap:12px;padding-top:12px}}
.chip .nm{font-size:12px;font-weight:800;color:var(--muted);background:#fff;border-radius:999px;
  padding:2px 10px;border:1.5px solid var(--navy);opacity:0}
.chip.act{transform:scale(1.12)}
.chip.act img{filter:none;border-color:var(--ring);box-shadow:0 0 0 3px var(--ring)}
.chip.act .nm{opacity:1}
.chip.muted img{opacity:.4}
.chip .mutetag{font-size:11px;font-weight:800;color:var(--red)}
.subtitle{padding:14px 20px 6px;min-height:104px;text-align:center}
.subtitle .vi,.subtitle .target-main{font-size:25px;font-weight:800;color:var(--navy);line-height:1.55}
.subtitle .vi .k,.subtitle .target-main .k{border-radius:4px;padding:0 2px}
.subtitle .vi .k.on,.subtitle .target-main .k.on{background:var(--yellow)}
.subtitle .ja,.subtitle .gloss-main{font-size:14.5px;color:var(--muted);margin-top:8px;text-wrap:balance}
.stage .intro{text-wrap:balance}
/* 呼びかけナビ */
.pnav{position:fixed;inset:0;background:rgba(25,29,39,.55);z-index:60;display:flex;align-items:center;
  justify-content:center;padding:16px}
.pnav .card{background:#fff;border:3px solid var(--navy);border-radius:20px;padding:20px;
  width:min(440px,100%);box-shadow:6px 6px 0 rgba(0,0,0,.25)}
.pnav h3{font-size:18px;font-weight:800;margin-bottom:4px}
.pnav .sub{font-size:13px;color:var(--muted);margin-bottom:14px}
.pnav .row{display:flex;align-items:center;gap:12px;border:2.5px solid var(--navy);border-radius:14px;
  padding:10px 14px;margin-bottom:10px}
.pnav .row .f{font-size:26px;flex:none}
.pnav .row .pf{width:56px;height:56px;border-radius:50%;object-fit:cover;flex:none;
  border:2.5px solid var(--navy);background:#fff}
.pnav .row .who{flex:1;font-size:14px;font-weight:700}
.pnav .row .who small{display:block;font-size:11.5px;color:var(--muted);font-weight:700}
.pnav .row .w{font-size:22px;font-weight:800;color:var(--purple)}
.pnav .tip{background:var(--soft);border-radius:12px;padding:10px 14px;font-size:13px;font-weight:700}
.pnav .close-row{text-align:center;margin-top:14px}
.subtitle .yourturn{display:inline-block;margin-top:10px;font-weight:800;font-size:16px;color:#fff;
  background:var(--red);border-radius:999px;padding:9px 22px;border:2.5px solid var(--navy);
  animation:pulse 1s infinite}
.subtitle .pending-next{background:var(--navy);animation:none}
@keyframes pulse{50%{transform:scale(1.06)}}
.pendtag{display:inline-block;font-size:12.5px;font-weight:800;color:var(--muted);background:var(--soft);
  border-radius:999px;padding:4px 12px;margin-top:8px}
.controls{display:flex;gap:18px;justify-content:center;align-items:center;padding:10px 16px 8px}
.cbtn{font-weight:800;font-size:15px;padding:10px 15px;border-radius:999px;border:2.5px solid var(--navy);
  background:#fff;box-shadow:2px 2px 0 rgba(0,0,0,.12)}
.cbtn.on{background:var(--orange);color:#fff}
.cbtn.nav{width:50px;height:50px;border-radius:50%;font-size:17px;padding:0}
.cbtn.big{width:62px;height:62px;border-radius:50%;background:var(--red);color:#fff;font-size:22px}
.cbtn:active{transform:translate(1px,1px);box-shadow:none}
.modes{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;padding:2px 18px 8px}
.mbtn{display:flex;flex-direction:column;align-items:center;gap:1px;font-weight:800;font-size:12px;
  padding:8px 4px 7px;border-radius:14px;border:2.5px solid var(--navy);background:#fff;color:var(--ink)}
.mbtn i{font-style:normal;font-size:17px}
.mbtn.on{background:var(--orange);color:#fff}
.mbtn:active{transform:translate(1px,1px)}
.linenav{font-size:13.5px;font-weight:800;color:var(--muted);text-align:center;padding-bottom:2px}
@media(max-height:700px){
  .stage{height:180px}
  .subtitle{min-height:80px}
  .subtitle .vi,.subtitle .target-main{font-size:21px}
  .chip img{width:76px;height:76px}
}

/* 単語カード: パック行 + 小分けデッキ */
.packrow{background:#fff;border:3px solid var(--navy);border-radius:16px;padding:14px 16px;
  margin-bottom:14px;box-shadow:4px 4px 0 var(--pc)}
.packrow-head{display:flex;align-items:center;gap:12px}
.packrow-head .ic{font-size:28px}
.packrow-head h3{font-size:16.5px;font-weight:800}
.packrow-head .cnt{font-size:12.5px;font-weight:700;color:var(--muted)}
.packrow .meter{margin:10px 0}
/* gym */
.packgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}
.packcard{background:#fff;border:3px solid var(--navy);border-radius:16px;padding:16px;text-align:center;
  box-shadow:4px 4px 0 var(--pc)}
.packcard .ic{font-size:30px}
.packcard h3{font-size:16px;font-weight:800;margin:4px 0 2px}
.packcard .cnt{font-size:13px;font-weight:700;color:var(--muted)}
.meter{height:12px;border-radius:999px;background:var(--soft);margin:10px 0;overflow:hidden;
  border:1.5px solid var(--navy)}
.meter i{display:block;height:100%;background:var(--pc);border-radius:999px}
.packcard .go{font-weight:800;font-size:14px;color:#fff;background:var(--navy);border-radius:999px;
  padding:8px 20px}
.gym-note{font-size:13.5px;color:var(--muted);margin-top:16px;line-height:1.7}
.howto{background:#fff;border:3px dashed var(--navy);border-radius:16px;padding:16px 18px;margin-top:18px}
.howto h4{font-size:16px;font-weight:800;margin-bottom:8px}
.stage-legend{font-size:14px;background:var(--soft);border-radius:10px;padding:8px 12px;margin-bottom:10px}
.howto ol{margin-left:22px;font-size:13.5px;line-height:1.75}
.howto li{margin-bottom:5px}
.howto p{font-size:13.5px;margin-top:8px;color:var(--ink)}
/* drill */
.drill{background:#fff;border:3px solid var(--navy);border-radius:20px;padding:22px;
  box-shadow:5px 5px 0 var(--pc);max-width:480px;margin:0 auto}
.drill .prog{font-size:13.5px;font-weight:800;color:var(--muted);text-align:right}
.drill .q{text-align:center;margin:14px 0 18px}
.drill .q .vi,.drill .q .target-main{font-size:34px;font-weight:800;color:var(--navy);line-height:1.4}
.drill .q .hint{font-size:14px;color:var(--muted);margin-top:6px;line-height:1.6;text-wrap:balance}
.drill .q .pbtn{width:72px;height:72px;font-size:28px;margin-bottom:8px}
.choices{display:grid;gap:12px}
.choice{font-weight:700;font-size:17px;text-align:left;padding:14px 18px;border-radius:14px;
  border:2.5px solid var(--navy);background:#fff;box-shadow:3px 3px 0 rgba(0,0,0,.1)}
.choice:active{transform:translate(1px,1px)}
.choice.good{background:var(--mint)}
.choice.bad{background:var(--pink);color:#fff}
.drill .fb{text-align:center;font-weight:800;min-height:28px;margin-top:12px;font-size:16px}
.result{text-align:center;padding:30px 10px}
.result .big{font-size:48px}
.result h3{font-size:22px;font-weight:800;margin:8px 0}
.result p{font-size:14px}
.toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;
  font-weight:800;font-size:14.5px;padding:12px 22px;border-radius:999px;z-index:99;
  border:2.5px solid #fff;box-shadow:0 4px 14px rgba(0,0,0,.3);max-width:92vw;text-align:center}

/* ---- Multilingual course shell v2 ---- */
.lang-assist-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:7px;align-items:flex-start}
.lang-assist{margin:0}
.lang-assist summary{display:inline-block;cursor:pointer;font-size:10.5px;font-weight:800;color:var(--muted);
  background:var(--soft);border:1.5px solid var(--navy);border-radius:999px;padding:2px 10px;list-style:none;user-select:none}
.lang-assist summary::-webkit-details-marker{display:none}
.lang-assist[open]{width:100%}
.lang-assist[open] summary{background:var(--yellow);color:var(--navy)}
.lang-assist>div{margin-top:6px;font-size:12.5px;color:var(--muted);background:var(--soft);
  border-inline-start:3px solid var(--navy);border-radius:8px;padding:8px 12px;line-height:1.6}
.locale-fallback-badge{display:inline-flex;vertical-align:middle;margin-inline-start:7px;padding:1px 8px;border:1.5px solid var(--navy);
  border-radius:999px;background:#fff3cd;color:var(--navy);font-size:10px;font-weight:800;white-space:nowrap}
.flag-more{font-size:20px;filter:none}
.course-btn{background:var(--mint);max-width:230px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.target-text{font-family:var(--target-font);font-language-override:normal;unicode-bidi:plaintext}
.gloss-text{font-family:var(--learner-font);unicode-bidi:plaintext}

/* Settings and course picker */
.settings-modal{align-items:flex-start;overflow:auto;padding-block:24px}
.pnav .settings-card{width:min(720px,100%);max-height:none}
.modal-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;border-bottom:2px solid var(--soft);padding-bottom:12px}
.modal-heading .sub{margin-bottom:0}
.modal-x{width:38px;height:38px;flex:none;border:2.5px solid var(--navy);border-radius:50%;background:#fff;font-weight:800;font-size:16px}
/* モーダル共通: カード直下に置いた×は右上に絶対配置 (modal-heading内のものは従来のflex配置) */
.pnav .card{position:relative}
.pnav .card>.modal-x{position:absolute;top:10px;right:12px;z-index:2}
.settings-section{padding:16px 0;border-bottom:1.5px solid #d8dee6}
.settings-section:last-of-type{border-bottom:0}
.settings-section h4{font-size:15.5px;font-weight:800;margin-bottom:4px}
.settings-section p{font-size:12.5px;color:var(--muted);line-height:1.55;margin-bottom:9px}
.locale-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:8px;margin-top:10px}
.locale-option{display:flex;align-items:center;gap:10px;text-align:left;border:2px solid var(--navy);border-radius:13px;background:#fff;padding:9px 11px;min-width:0}
.locale-option.selected{background:var(--mint);box-shadow:2px 2px 0 var(--navy)}
.locale-flag{font-size:24px;flex:none}
.locale-name{font-weight:800;font-size:13.5px;line-height:1.35;min-width:0}
.locale-name small{display:block;font-size:10.5px;font-weight:700;color:var(--muted);margin-top:2px}
.locale-option>b{margin-inline-start:auto}
.setting-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.setting-chip{border:2px solid var(--navy);border-radius:999px;background:#fff;padding:8px 12px;font-size:12.5px;font-weight:800;line-height:1.25}
.setting-chip.on{background:var(--orange);color:#fff;box-shadow:2px 2px 0 rgba(0,0,0,.2)}
.settings-notice{margin-top:10px;background:#fff3cd;border:2px dashed var(--orange);border-radius:12px;padding:9px 12px;font-size:12.5px;font-weight:700}
.settings-disclosure{margin-top:10px;border:1px solid #d9d9e3;border-radius:12px;padding:8px 12px;font-size:12.5px;background:#fafafc}
.settings-disclosure>summary{cursor:pointer;font-weight:700;list-style:revert}
.settings-disclosure>p{margin:8px 0 2px;font-weight:400;line-height:1.6}
.empty-setting{font-size:12.5px;color:var(--muted)}
.course-list{display:grid;gap:10px;margin-top:14px}
.course-option{display:flex;align-items:center;gap:12px;border:2.5px solid var(--navy);border-radius:15px;background:#fff;padding:12px 14px;text-align:left}
.course-option.selected{background:var(--mint)}
.course-option .course-flag{font-size:30px;flex:none}
.course-option span:nth-child(2){flex:1;min-width:0}
.course-option b{display:block;font-size:15px}
.course-option small{display:block;color:var(--muted);font-size:11.5px;margin-top:2px}
.course-option em{font-style:normal;font-size:10.5px;font-weight:800;background:#fff;border:1.5px solid var(--navy);border-radius:999px;padding:3px 8px}

/* Generic day renderer */
.generic-block{background:#fff;border:2.5px solid var(--navy);border-radius:16px;padding:16px;box-shadow:3px 3px 0 color-mix(in srgb,var(--dc) 40%,transparent)}
.generic-copy{font-size:15px;line-height:1.8}
.generic-list{padding-inline-start:24px;font-size:15px;line-height:1.8}
.generic-list li+li{margin-top:8px}

/* Typed answers */
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.gloss-question{font-size:24px;font-weight:800;color:var(--navy);line-height:1.5}
.type-answer{display:grid;gap:10px}
.target-input{width:100%;border:3px solid var(--navy);border-radius:14px;background:#fff;padding:13px 15px;font:800 20px/1.4 var(--target-font);color:var(--navy);text-align:center;outline:none}
.target-input:focus{box-shadow:0 0 0 4px color-mix(in srgb,var(--blue) 30%,transparent)}
.target-input.good{background:color-mix(in srgb,var(--mint) 35%,#fff)}
.target-input.almost{background:#fff3cd;border-color:var(--orange)}
.target-input.bad{background:color-mix(in srgb,var(--pink) 22%,#fff);border-color:var(--red)}
.input-meta{font-size:11.5px;font-weight:800;color:var(--muted);text-align:center}
.input-preview{min-height:22px;font-size:14px;font-weight:800;color:var(--purple);text-align:center}
.type-submit{text-align:center;background:var(--mint)}
.target-choice{text-align:start;unicode-bidi:plaintext}
.choice:disabled{cursor:default;opacity:.82}

.load-error{text-align:center;padding:34px 12px}
.load-error .big{font-size:46px}
.load-error h2{font-size:22px;margin:8px 0}
.load-error p{color:var(--muted);margin-bottom:12px}
.load-error pre{max-width:100%;overflow:auto;text-align:left;background:var(--soft);border-radius:10px;padding:10px;font-size:11px;margin-bottom:15px}

:focus-visible{outline:4px solid color-mix(in srgb,var(--blue) 55%,#fff);outline-offset:3px}
[dir="rtl"] .day-nav-btn--back,[dir="rtl"] .back{direction:rtl}
[dir="rtl"] .locale-option,[dir="rtl"] .course-option,[dir="rtl"] .choice{text-align:right}

@media(max-width:640px){
  /* ヘッダーは常に1行: ロゴのサブ文字を省略し、操作ボタンを小さくして収める */
  .logo-lockup em{display:none}
  .edition-btn{font-size:12.5px;padding:8px 11px;min-width:0}
  .lang-btn{padding:8px 11px}
  .settings-modal{padding:8px}
  .pnav .settings-card{padding:15px}
  .locale-grid{grid-template-columns:1fr 1fr}
  .locale-name small{display:none}
}
@media(max-width:380px){
  .locale-grid{grid-template-columns:1fr}
  .site-logo{font-size:1.5rem}
  .edition-btn{font-size:12px;padding:7px 9px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}
}

/* ============================================================
   Theme / Scene / Practice+ architecture v3
   ============================================================ */
.folder-tabs .ftab{min-width:0;font-size:clamp(13px,3.5vw,17px);line-height:1.25}
.tl-theme-label{font-size:11.5px;font-weight:800;padding:3px 9px;border:2px solid var(--navy);border-radius:999px;background:color-mix(in srgb,var(--dc) 24%,#fff)}
.timeline-theme-summary{margin-top:10px}
.timeline-extension-summary{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;padding:10px 13px;border:2px dashed var(--navy);border-radius:13px;background:color-mix(in srgb,var(--dc) 10%,#fff);font-size:13px;font-weight:800;text-align:left}
.timeline-extension-summary b{flex:none;background:#fff;border:1.5px solid var(--navy);border-radius:999px;padding:2px 8px}

.theme-overview{margin:22px 0 0;padding:20px;border:3px solid var(--navy);border-radius:18px;background:color-mix(in srgb,var(--dc) 13%,#fff);box-shadow:5px 5px 0 color-mix(in srgb,var(--dc) 42%,transparent)}
.theme-overview.integrated{background:linear-gradient(135deg,color-mix(in srgb,var(--purple) 14%,#fff),color-mix(in srgb,var(--yellow) 22%,#fff))}
.theme-kicker{display:inline-flex;align-items:center;font-size:12px;font-weight:800;letter-spacing:.04em;background:var(--dc);color:#fff;border:2px solid var(--navy);border-radius:999px;padding:3px 11px;margin-bottom:8px}
.theme-overview h2{font-size:clamp(23px,5vw,31px);line-height:1.35;margin-bottom:5px;color:var(--navy)}
.theme-description{font-size:15px;line-height:1.75;color:var(--ink)}
.theme-overview h3{font-size:14px;margin:15px 0 8px}
.theme-skill-chips{display:flex;flex-wrap:wrap;gap:7px}
.theme-skill-chip{display:inline-flex;align-items:center;min-height:31px;border:2px solid var(--navy);border-radius:999px;background:#fff;padding:4px 11px;font-size:12.5px;font-weight:800;line-height:1.4}
.theme-skill-chips.small .theme-skill-chip{font-size:11.5px;min-height:27px;padding:3px 9px;border-width:1.5px}
.theme-extension-jump{margin-top:15px;border:2px solid var(--navy);border-radius:12px;background:#fff;padding:9px 13px;font-size:13px;font-weight:800;box-shadow:2px 2px 0 var(--dc)}

.scene-intro{margin-top:22px;padding:15px 17px;border:2.5px solid var(--navy);border-radius:16px;background:#fff;box-shadow:3px 3px 0 var(--dc)}
.scene-intro span{display:inline-block;font-size:11px;font-weight:800;color:#fff;background:var(--dc);border-radius:999px;padding:2px 9px;margin-bottom:5px}
.scene-intro h2{font-size:20px;line-height:1.4;color:var(--navy)}
.scene-intro p{font-size:14px;color:var(--muted);line-height:1.7;margin-top:3px}

.grammar-section{scroll-margin-top:14px}
.grammar-grid{display:grid;gap:16px}
.grammar-card{scroll-margin-top:14px;border:3px solid var(--navy);border-radius:18px;background:#fff;padding:17px;box-shadow:4px 4px 0 color-mix(in srgb,var(--dc) 35%,transparent)}
.grammar-card.checked{border-color:color-mix(in srgb,var(--mint) 72%,var(--navy));background:color-mix(in srgb,var(--mint) 7%,#fff)}
.grammar-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.grammar-type,.grammar-done{display:inline-flex;border:2px solid var(--navy);border-radius:999px;padding:2px 10px;font-size:11px;font-weight:800}
.grammar-type.common{background:var(--yellow)}
.grammar-type.target_specific{background:var(--mint)}
.grammar-done{background:#fff;color:#16734e}
.grammar-card h3{font-size:19px;line-height:1.45;color:var(--navy);margin:9px 0 7px}
.grammar-pattern{font-size:20px;font-weight:800;color:var(--purple);background:var(--soft);border-left:5px solid var(--dc);border-radius:8px;padding:10px 12px;unicode-bidi:plaintext}
/* パターン内の {…} プレースホルダ = 学習者言語のヒント。弱め・小さめで枠と区別 */
.grammar-pattern .pat-slot{font-size:.82em;font-weight:700;color:var(--muted);font-family:var(--learner-font)}
/* タブ扉絵ヒーロー(単語カード/追加特訓) */
.tab-door{width:100%;height:clamp(96px,26vw,150px);border:3px solid var(--navy);border-radius:16px;overflow:hidden;
  margin:0 0 16px;box-shadow:4px 5px 0 rgba(25,29,39,.16);background:var(--soft)}
.tab-door img{width:100%;height:100%;object-fit:cover;object-position:center 42%;display:block}
.grammar-copy,.grammar-contrast,.grammar-usage,.grammar-mistakes{font-size:14px;line-height:1.75;margin-top:12px}
.grammar-copy b,.grammar-contrast b,.grammar-usage b,.grammar-mistakes b{display:block;font-size:11.5px;color:var(--muted);margin-bottom:1px}
.grammar-contrast{background:#fff8d5;border:2px dashed var(--orange);border-radius:12px;padding:10px 12px}
.grammar-usage{background:color-mix(in srgb,var(--blue) 8%,#fff);border:2px solid color-mix(in srgb,var(--blue) 45%,#fff);border-radius:12px;padding:10px 12px}
.grammar-mistakes{background:color-mix(in srgb,var(--red) 7%,#fff);border:2px solid color-mix(in srgb,var(--red) 40%,#fff);border-radius:12px;padding:10px 12px}
.grammar-mistakes b{color:var(--red)}
.grammar-why{margin-top:10px;font-size:13.5px}
.grammar-why summary{cursor:pointer;font-weight:800;color:var(--purple);font-size:12.5px}
.grammar-why>div{margin-top:6px;line-height:1.7;color:var(--ink)}
.safety-note{display:flex;gap:11px;align-items:flex-start;margin-top:18px;background:color-mix(in srgb,var(--mint) 10%,#fff);
  border:2.5px solid color-mix(in srgb,var(--mint) 55%,var(--navy));border-radius:14px;padding:13px 15px}
.safety-note .safety-icon{font-size:22px;line-height:1.2}
.safety-note b{display:block;font-size:12.5px;color:var(--navy);margin-bottom:3px}
.safety-note p{font-size:13px;line-height:1.7;color:var(--ink);margin:0}
.grammar-examples{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:9px;margin-top:12px}
.grammar-example{display:flex;align-items:center;gap:9px;border:2px solid var(--navy);border-radius:12px;padding:9px 11px;background:#fff}
.grammar-example .pbtn{width:38px;height:38px;font-size:14px}
.grammar-target{font-size:15.5px!important}
.grammar-gloss{font-size:12.5px!important}
.grammar-check{margin-top:14px;border-top:2px solid var(--soft);padding-top:12px}
.grammar-check h4{font-size:13.5px;margin-bottom:4px}
.grammar-check p{font-size:14px;font-weight:700;line-height:1.6}
.grammar-options{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
.grammar-option{border:2px solid var(--navy);border-radius:12px;background:#fff;padding:10px 12px;font-size:14px;font-weight:800;text-align:left;unicode-bidi:plaintext}
.grammar-option.good{background:var(--mint)}
.grammar-option.bad{background:color-mix(in srgb,var(--pink) 35%,#fff)}
.grammar-feedback{min-height:23px;font-size:13px;font-weight:800;margin-top:8px}
.grammar-feedback.good{color:#16734e}.grammar-feedback.bad{color:var(--red)}

.related-extensions{border-top:3px dashed var(--navy);padding-top:20px}
.related-extension-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:13px}
.related-extension-heading .sect{margin-bottom:3px}.related-extension-heading p{font-size:13px;color:var(--muted)}

.extensions-intro{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:19px;border:3px solid var(--navy);border-radius:18px;background:linear-gradient(135deg,#fff,color-mix(in srgb,var(--mint) 16%,#fff));box-shadow:5px 5px 0 color-mix(in srgb,var(--purple) 35%,transparent)}
.extensions-intro-icon{font-size:42px}
.extensions-intro h1{font-size:27px;line-height:1.3;color:var(--navy)}
.extensions-intro p{font-size:14px;line-height:1.65}.extensions-intro .extensions-optional{font-size:12.5px;color:var(--muted);margin-top:4px}
.extensions-total{border:2px solid var(--navy);border-radius:14px;background:#fff;padding:10px 12px;font-size:13px;font-weight:800;text-align:center;white-space:nowrap}
.extensions-continue{margin-top:24px}.extensions-continue>h2{font-size:19px;margin-bottom:10px}
.extension-theme-list{display:grid;gap:26px;margin-top:25px}
.extension-theme{scroll-margin-top:15px;border-top:4px solid var(--ec);padding-top:15px}
.extension-theme>header{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:12px}
.extension-theme>header span{font-size:11px;font-weight:800;color:#fff;background:var(--ec);border:2px solid var(--navy);border-radius:999px;padding:2px 10px}
.extension-theme>header h2{font-size:22px;line-height:1.4;color:var(--navy);margin-top:4px}
.extension-theme>header p{font-size:13.5px;color:var(--muted);line-height:1.6;margin-top:2px}
.extension-theme-progress{flex:none;min-width:64px;text-align:center;font-size:21px;font-weight:800;border:2px solid var(--navy);border-radius:13px;background:#fff;padding:7px 9px;box-shadow:3px 3px 0 var(--ec)}
.extension-theme-progress small{display:block;font-size:11px;color:var(--muted);line-height:1.3;margin-top:2px}
.extension-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.extension-card-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}
.extension-card{position:relative;display:grid;grid-template-columns:92px 1fr;grid-template-rows:1fr auto;gap:0 12px;min-width:0;border:3px solid var(--navy);border-radius:16px;background:#fff;padding:12px;box-shadow:4px 4px 0 color-mix(in srgb,var(--ec) 45%,transparent)}
.extension-card.done{background:color-mix(in srgb,var(--mint) 8%,#fff)}
.extension-card.started{background:color-mix(in srgb,var(--yellow) 8%,#fff)}
.extension-card-visual{grid-row:1/3}.thumb.extension-thumb{width:92px;height:100%;min-height:132px;border:2px solid var(--navy);border-radius:12px}.thumb.extension-thumb .tf{font-size:35px}
.extension-card-copy{min-width:0}.extension-card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:5px}
.extension-recommended,.extension-after,.extension-status{display:inline-flex;align-items:center;border:1.5px solid var(--navy);border-radius:999px;padding:1px 7px;font-size:9.5px;font-weight:800;line-height:1.5;background:#fff}
.extension-recommended{background:var(--yellow)}.extension-after{color:var(--muted)}.extension-status.done{background:var(--mint)}.extension-status.started{background:#fff3cd}
.extension-card h3{font-size:16px;line-height:1.4;color:var(--navy);margin:6px 0 3px}
.extension-card p{font-size:12px;color:var(--muted);line-height:1.55}
.extension-card-foot{display:flex;gap:10px;flex-wrap:wrap;font-size:10.5px;font-weight:800;color:var(--muted);margin-top:6px}
.extension-open{grid-column:2;margin-top:9px;border:2px solid var(--navy);border-radius:999px;background:var(--ec);color:#fff;padding:7px 10px;font-size:12px;font-weight:800}

.extension-hero{display:grid;grid-template-columns:minmax(180px,35%) 1fr;border:3px solid var(--navy);border-radius:18px;overflow:hidden;background:#fff;box-shadow:5px 5px 0 var(--ec)}
.extension-hero-image .thumb{height:100%;min-height:250px;border:0;border-radius:0}.extension-hero-image .thumb .tf{font-size:70px}
.extension-hero-copy{padding:20px;background:color-mix(in srgb,var(--ec) 10%,#fff)}
.extension-eyebrow{font-size:12px;font-weight:800;color:#fff;background:var(--ec);border:2px solid var(--navy);border-radius:999px;padding:3px 10px;display:inline-block}
.extension-hero h1{font-size:clamp(24px,5vw,34px);line-height:1.35;color:var(--navy);margin:9px 0 5px}
.extension-hero p{font-size:15px;line-height:1.7}.extension-hero-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}.extension-hero-meta>span{font-size:11px;font-weight:800;border:1.5px solid var(--navy);border-radius:999px;background:#fff;padding:3px 9px}
.extension-relationship{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;margin-top:22px;border:3px solid var(--navy);border-radius:17px;background:#fff;padding:17px;box-shadow:4px 4px 0 color-mix(in srgb,var(--ec) 35%,transparent)}
.extension-label{font-size:11px;font-weight:800;color:var(--muted)}.extension-relationship h2{font-size:19px;color:var(--navy);margin:2px 0 9px}.extension-relationship h3{font-size:12px;margin-bottom:6px}
.extension-relationship-actions{display:grid;gap:9px;min-width:190px}.grammar-link-list{display:grid;gap:5px}.grammar-link-list>span{font-size:10.5px;font-weight:800;color:var(--muted)}.grammar-link-list button{border:1.5px solid var(--navy);border-radius:9px;background:var(--soft);padding:6px 8px;font-size:11px;font-weight:800;text-align:left}
.extension-audio-note{margin-top:17px;border:2px dashed var(--orange);border-radius:12px;background:#fff8d5;padding:9px 12px;font-size:12.5px;font-weight:700}
.extension-vocab{border:2.5px solid var(--navy);border-radius:16px;padding:16px;background:color-mix(in srgb,var(--yellow) 10%,#fff)}.extension-vocab>p{font-size:13px;color:var(--muted);margin-bottom:10px}
.extension-vocab-preview{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}.extension-vocab-preview>span{display:flex;flex-direction:column;border:2px solid var(--navy);border-radius:10px;background:#fff;padding:6px 9px;font-weight:800;font-size:13px}.extension-vocab-preview small{font-size:9.5px;color:var(--muted);font-weight:700}
.extension-complete-actions .cbtn.completed{background:var(--mint)!important;color:var(--navy)!important}

.extension-word-panel{margin-bottom:20px;border:3px solid var(--navy);border-radius:17px;background:color-mix(in srgb,var(--mint) 10%,#fff);padding:16px;box-shadow:4px 4px 0 color-mix(in srgb,var(--purple) 30%,transparent)}
.extension-word-panel h2{font-size:19px;color:var(--navy)}.extension-word-panel p{font-size:12.5px;color:var(--muted);margin:3px 0 10px}.extension-word-decks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}

@media(max-width:680px){
  .extension-card-grid,.extension-card-grid.compact{grid-template-columns:1fr}
  .extension-hero{grid-template-columns:1fr}.extension-hero-image .thumb{min-height:210px;height:210px}
  .extension-relationship{grid-template-columns:1fr}.extension-relationship-actions{min-width:0}
  .extensions-intro{grid-template-columns:auto 1fr}.extensions-total{grid-column:1/-1;white-space:normal}
}
@media(max-width:470px){
  .tabwrap{padding-inline:7px}.ftab{padding-inline:3px;font-size:12px}
  main.panel{padding-inline:11px}
  .theme-overview{padding:15px}.grammar-card{padding:14px}.grammar-options{grid-template-columns:1fr}
  .related-extension-heading{display:block}.related-extension-heading .cbtn{margin-top:9px;width:100%}
  .extension-card{grid-template-columns:72px 1fr}.thumb.extension-thumb{width:72px;min-height:125px}
  .extension-word-decks{grid-template-columns:1fr}
  .extensions-intro{grid-template-columns:1fr;text-align:left}.extensions-intro-icon{font-size:34px}.extensions-total{grid-column:auto}
}