/* ==========================================================
   謎解きの部屋 ─ 共通スタイル
   色や書体を変えたいときは :root の変数を書き換えてください
   ========================================================== */
:root{
  --bg:        #0b0f1a;
  --bg-2:      #111726;
  --panel:     #151c2e;
  --panel-2:   #1b2337;
  --line:      #2a3450;
  --ink:       #e8ecf6;
  --ink-dim:   #96a0bb;
  --gold:      #d9b25f;
  --gold-soft: #f0d79b;
  --ok:        #58d1a0;
  --ng:        #e2707a;
  --radius:    14px;
  --serif: "Hiragino Mincho ProN","Yu Mincho",YuMincho,"Noto Serif JP",serif;
  --sans: "Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic","Noto Sans JP",system-ui,sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 50% -10%, #1a2440 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:0; opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(900px 700px at 50% 0%, #000 0%, transparent 75%);
}
main,header,footer{ position:relative; z-index:1; }
a{ color:var(--gold-soft); }
img{ max-width:100%; }

/* ---------- ヘッダー / ナビ ---------- */
.site-head{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; gap:10px 16px; flex-wrap:wrap;
  padding:10px clamp(14px,4vw,40px);
  background:rgba(11,15,26,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{ display:flex; align-items:baseline; gap:9px; font-family:var(--serif); text-decoration:none; }
.brand b{ font-size:1.05rem; letter-spacing:.16em; color:var(--gold); font-weight:600; }
.brand span{ font-size:.62rem; letter-spacing:.28em; color:var(--ink-dim); }
.nav{ display:flex; gap:4px; flex-wrap:wrap; }
.nav a{
  text-decoration:none; color:var(--ink-dim); font-size:.82rem;
  padding:5px 13px; border-radius:99px; border:1px solid transparent; transition:.18s;
}
.nav a:hover{ color:var(--gold-soft); border-color:var(--line); }
.nav a[aria-current="page"]{ color:var(--gold); border-color:var(--gold); background:rgba(217,178,95,.08); }
.head-right{ margin-left:auto; display:flex; align-items:center; gap:10px; font-size:.78rem; color:var(--ink-dim); }
.bar{ width:96px; height:6px; border-radius:99px; background:var(--panel-2); overflow:hidden; }
.bar > i{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--gold),var(--gold-soft)); transition:width .5s ease; }

/* ---------- ボタン ---------- */
button{ font:inherit; cursor:pointer; }
.btn{
  border:1px solid var(--line); background:var(--panel-2); color:var(--ink);
  padding:10px 18px; border-radius:99px; transition:.18s; text-decoration:none; display:inline-block;
}
.btn:hover{ border-color:var(--gold); color:var(--gold-soft); }
.btn:disabled{ opacity:.45; cursor:not-allowed; }
.btn:disabled:hover{ border-color:var(--line); color:var(--ink); }
.btn-gold{ background:linear-gradient(135deg,var(--gold),#b8913f); border-color:transparent; color:#1a1405; font-weight:700; }
.btn-gold:hover{ filter:brightness(1.1); color:#1a1405; }
.btn-ghost{ background:transparent; color:var(--ink-dim); border-color:var(--line); padding:6px 14px; font-size:.8rem; }

/* ---------- 共通レイアウト ---------- */
.wrap{ max-width:1040px; margin:0 auto; padding:0 clamp(14px,4vw,32px); }
section{ padding:clamp(32px,6vw,64px) 0; }
.sec-title{
  font-family:var(--serif); font-size:1.35rem; letter-spacing:.14em; margin:0 0 6px;
  display:flex; align-items:center; gap:14px;
}
.sec-title::after{ content:""; flex:1; height:1px; background:var(--line); }
.sec-note{ color:var(--ink-dim); font-size:.85rem; margin:0 0 24px; }

.hero{ text-align:center; padding:clamp(44px,9vw,104px) 16px clamp(28px,5vw,56px); }
.hero .sub{ font-size:.7rem; letter-spacing:.38em; color:var(--gold); margin:0 0 16px; }
.hero h1{
  font-family:var(--serif); font-weight:600;
  font-size:clamp(1.9rem,7vw,3.8rem); line-height:1.3; margin:0; letter-spacing:.1em;
  text-shadow:0 0 40px rgba(217,178,95,.18);
}
.hero p{ max-width:34em; margin:20px auto 0; color:var(--ink-dim); font-size:clamp(.88rem,2.4vw,1rem); }
.rule{ width:1px; height:44px; margin:32px auto 0; background:linear-gradient(180deg,var(--gold),transparent); }

/* ---------- 謎カード ---------- */
.grid{ display:grid; gap:16px; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); }
.card{
  position:relative; text-align:left; width:100%;
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 20px 18px; color:inherit; transition:.2s;
}
.card:hover{ transform:translateY(-3px); border-color:var(--gold); box-shadow:0 12px 34px rgba(0,0,0,.45); }
.card .no{ font-family:var(--serif); font-size:.7rem; letter-spacing:.26em; color:var(--gold); }
.card h3{ font-family:var(--serif); font-size:1.1rem; font-weight:600; margin:8px 0 12px; letter-spacing:.04em; }
.card .meta{ display:flex; align-items:center; gap:9px; font-size:.72rem; color:var(--ink-dim); flex-wrap:wrap; }
.stars{ color:var(--gold); letter-spacing:.1em; }
.tag{ border:1px solid var(--line); border-radius:99px; padding:1px 9px; }
.card .state{
  position:absolute; top:13px; right:13px; font-size:.66rem; letter-spacing:.08em;
  padding:3px 9px; border-radius:99px; border:1px solid var(--line); color:var(--ink-dim);
}
.card.cleared{ border-color:rgba(88,209,160,.45); }
.card.cleared .state{ color:var(--ok); border-color:rgba(88,209,160,.45); }
.card.locked{ opacity:.6; cursor:not-allowed; }
.card.locked:hover{ transform:none; border-color:var(--line); box-shadow:none; }
.card.big{ background:linear-gradient(160deg,#1d1a2e,#241d33); border-color:#3b3357; }
.card.big:not(.locked){ border-color:var(--gold); box-shadow:0 0 0 1px rgba(217,178,95,.22),0 14px 40px rgba(217,178,95,.08); }

/* ---------- トップページ(モード選択) ---------- */
.mode-grid{ display:grid; gap:18px; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.mode-card{
  position:relative; display:flex; flex-direction:column;
  text-decoration:none; color:inherit;
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  border:1px solid var(--line); border-radius:18px;
  padding:26px 24px 22px; overflow:hidden; transition:.22s;
}
.mode-card::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(420px 180px at 100% 0%, rgba(217,178,95,.12), transparent 70%);
  opacity:0; transition:.22s;
}
.mode-card:hover{ transform:translateY(-4px); border-color:var(--gold); box-shadow:0 16px 44px rgba(0,0,0,.5); }
.mode-card:hover::after{ opacity:1; }
.mode-card.done{ border-color:rgba(88,209,160,.45); }
.mode-icon{ font-size:1.6rem; color:var(--gold); line-height:1; margin-bottom:14px; }
.mode-card .no{ font-family:var(--serif); font-size:.68rem; letter-spacing:.28em; color:var(--gold); }
.mode-card h3{ font-family:var(--serif); font-size:1.5rem; font-weight:600; margin:8px 0 10px; letter-spacing:.08em; }
.mode-card p{ margin:0 0 20px; color:var(--ink-dim); font-size:.86rem; flex:1; }
.mode-stat{ display:flex; align-items:center; gap:10px; font-size:.74rem; color:var(--ink-dim); margin-bottom:18px; }
.mode-stat .bar{ flex:1; }
.mode-go{ font-size:.84rem; color:var(--gold-soft); letter-spacing:.06em; }

/* ---------- レベル別ページ ---------- */
/* 難易度へのジャンプボタン */
.level-jump{ display:flex; gap:10px; flex-wrap:wrap; margin:0 0 40px; }
.level-chip{
  display:flex; align-items:center; gap:9px; text-decoration:none; color:var(--ink);
  border:1px solid var(--line); border-radius:99px;
  padding:9px 18px; background:var(--panel); transition:.18s; white-space:nowrap;
}
.level-chip:hover{ border-color:var(--gold); background:var(--panel-2); transform:translateY(-2px); }
.level-chip .stars{ font-size:.74rem; letter-spacing:0; }
.level-chip b{ font-family:var(--serif); font-size:.94rem; font-weight:600; letter-spacing:.06em; }
.level-chip small{ font-size:.72rem; color:var(--ink-dim); font-variant-numeric:tabular-nums; }
.level-chip.done{ border-color:rgba(88,209,160,.5); }
.level-chip.done small{ color:var(--ok); }

/* ジャンプ先がヘッダーの下に隠れないように */
.level-sec{ scroll-margin-top:96px; }

/* 問題サムネイルつきカード(押すと回答ページへ) */
.puzzle-card{ display:block; text-decoration:none; padding:14px 16px 18px; }
.puzzle-card .thumb{
  background:#fff; border-radius:10px; overflow:hidden;
  height:180px; display:flex; align-items:center; justify-content:center;
  margin-bottom:14px;
}
.puzzle-card .thumb img{ max-width:100%; max-height:100%; object-fit:contain; display:block; }
.puzzle-card .state{ top:22px; right:22px; background:rgba(21,28,46,.85); }
.puzzle-card.cleared .thumb{ opacity:.82; }

/* 動画クイズのサムネイル(中身は見せずに▶マークだけ) */
.puzzle-card .thumb-video{
  background:linear-gradient(160deg,#0e1322,#182036);
  flex-direction:column; gap:8px;
}
.thumb-video .play{
  width:52px; height:52px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--gold); color:var(--gold); font-size:1.1rem;
  padding-left:4px;
}
.thumb-video .vlabel{ font-size:.72rem; letter-spacing:.18em; color:var(--ink-dim); }

/* セット区切りの見出し */
.set-head{
  display:flex; align-items:baseline; gap:12px;
  margin:26px 0 12px; padding-bottom:6px;
  border-bottom:1px dashed var(--line);
  scroll-margin-top:96px;
}
.set-head h3{ font-family:var(--serif); font-size:1.02rem; letter-spacing:.14em; margin:0; }
.set-head span{ margin-left:auto; font-size:.76rem; color:var(--ink-dim); font-variant-numeric:tabular-nums; }

/* いちばん上へ戻るボタン */
.to-top{
  position:fixed; right:clamp(14px,3vw,28px); bottom:clamp(14px,3vw,28px); z-index:60;
  width:46px; height:46px; border-radius:50%;
  border:1px solid var(--line); background:rgba(21,28,46,.92); color:var(--gold);
  font-size:1.1rem; line-height:1; backdrop-filter:blur(8px);
  opacity:0; visibility:hidden; transform:translateY(8px); transition:.22s;
}
.to-top.show{ opacity:1; visibility:visible; transform:none; }
.to-top:hover{ border-color:var(--gold); background:var(--panel-2); }

.level-head{ display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin:0 0 4px; }
.level-head h2{ font-family:var(--serif); font-size:1.25rem; letter-spacing:.12em; margin:0; }
.level-head .stars{ font-size:1rem; }
.level-head .count{ margin-left:auto; font-size:.78rem; color:var(--ink-dim); }
.level-sec{ margin-bottom:40px; }
.level-sec > p{ color:var(--ink-dim); font-size:.82rem; margin:0 0 16px; }

/* ---------- モーダル ---------- */
dialog{
  width:min(680px,94vw); border:1px solid var(--line); border-radius:18px; padding:0;
  background:var(--panel); color:var(--ink); box-shadow:0 30px 80px rgba(0,0,0,.6);
}
dialog::backdrop{ background:rgba(4,6,12,.78); backdrop-filter:blur(4px); }
.dlg-head{ padding:24px 26px 0; }
.dlg-head .no{ font-family:var(--serif); font-size:.7rem; letter-spacing:.26em; color:var(--gold); }
.dlg-head h2{ font-family:var(--serif); font-size:1.4rem; font-weight:600; margin:8px 0 4px; letter-spacing:.05em; }
.dlg-body{ padding:16px 26px 8px; }
.quest{
  background:var(--bg); border:1px solid var(--line); border-left:3px solid var(--gold);
  border-radius:10px; padding:12px 16px; white-space:pre-wrap; font-size:.98rem;
}
.quest img,
.quest video{
  border-radius:8px; display:block; margin:10px auto 0;
  width:auto; max-width:100%;
  /* 問題文・解答欄・その下のボタンまで同じ画面に収まる範囲で、できるだけ大きく表示する */
  max-height:min(55vh, 640px);
  max-height:clamp(220px, calc(100dvh - 390px), 640px);
}
.quest video{ background:#000; }

/* 問題画像の入れ物(判定スタンプを重ねる基準) */
.quest{ position:relative; }
.q-media{ position:relative; width:fit-content; margin:10px auto 0; }
.q-media img,
.q-media video{ margin:0; }

/* 判定スタンプ(謎の白枠の中・右上に、少し傾けて出す) */
.q-judge{
  position:absolute; top:10px; right:14px; z-index:6;
  font-family:var(--sans); font-weight:900;
  -webkit-text-stroke:1.2px currentColor;   /* 線を太らせてしっかり太文字に */
  font-size:clamp(1.6rem, 4.5vw, 2.3rem); letter-spacing:.1em;
  transform:rotate(10deg);
  pointer-events:none; opacity:0;
}
.q-judge.show{ opacity:1; animation:judge-pop .22s ease-out; }
/* 動画クイズ(太文字解読)は上の飾りに重ならないよう少し下げる */
.q-media.is-video .q-judge{ top:24%; right:20px; }
.q-judge.ok{ color:#2f7ce0; text-shadow:0 1px 0 rgba(255,255,255,.6), 0 0 16px rgba(47,124,224,.35); }
.q-judge.ng{ color:#e2404a; text-shadow:0 1px 0 rgba(255,255,255,.6), 0 0 16px rgba(226,64,74,.35); }
@keyframes judge-pop{
  from{ transform:rotate(10deg) scale(1.7); opacity:0; }
  to{ transform:rotate(10deg) scale(1); opacity:1; }
}
.hints{ margin-top:16px; }
.hint{
  background:var(--panel-2); border:1px solid var(--line); border-radius:10px;
  padding:11px 15px; margin-bottom:8px; font-size:.88rem; color:var(--ink-dim);
}
.hint b{ color:var(--gold); font-size:.72rem; letter-spacing:.14em; display:block; margin-bottom:2px; }
.answer-row{ display:flex; gap:10px; margin-top:18px; flex-wrap:wrap; }
.answer-row input{
  flex:1 1 200px; min-width:0; font:inherit; padding:12px 17px;
  background:var(--bg); border:1px solid var(--line); border-radius:10px; color:var(--ink); letter-spacing:.08em;
}
.answer-row input:focus{ outline:none; border-color:var(--gold); box-shadow:0 0 0 3px rgba(217,178,95,.15); }
.verdict{ min-height:1.6em; margin:8px 0 0; font-size:.9rem; }
.verdict.ok{ color:var(--ok); }
.verdict.ng{ color:var(--ng); }
.explain{
  margin-top:14px; padding:15px 17px; border-radius:10px;
  background:rgba(88,209,160,.08); border:1px solid rgba(88,209,160,.3); font-size:.88rem;
}
.explain b{ display:block; color:var(--ok); font-size:.72rem; letter-spacing:.14em; margin-bottom:4px; }
.explain img{
  display:block; margin:12px auto 0; width:auto; max-width:100%;
  max-height:min(42vh, 400px); border-radius:8px;
}
.dlg-foot{ display:flex; gap:10px; justify-content:flex-end; padding:14px 26px 22px; }
.shake{ animation:shake .38s; }
@keyframes shake{ 0%,100%{transform:translateX(0)} 20%{transform:translateX(-7px)} 40%{transform:translateX(7px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)} }

/* ---------- クリア証 ---------- */
#clearSec{ display:none; }
#clearSec.show{ display:block; }
.cert{
  text-align:center; border:1px solid var(--gold); border-radius:18px;
  background:linear-gradient(160deg,rgba(217,178,95,.1),rgba(217,178,95,.02));
  padding:clamp(30px,6vw,56px) 20px;
}
.cert .seal{ font-size:2.2rem; }
.cert h2{ font-family:var(--serif); font-size:clamp(1.4rem,5vw,2.2rem); letter-spacing:.14em; margin:10px 0 6px; color:var(--gold-soft); }
.cert p{ color:var(--ink-dim); margin:0; }

/* ---------- タイムアタック ---------- */
.course-card{ display:block; text-align:left; }
.course-card .time{ font-family:var(--serif); font-size:2rem; color:var(--gold); letter-spacing:.04em; }
.course-card .time small{ font-size:.9rem; margin-left:3px; }
.course-card .best{ margin-top:10px; font-size:.75rem; color:var(--ok); }
.course-card .best.none{ color:var(--ink-dim); }

.ta-stage{ display:none; }
.ta-stage.show{ display:block; }
.ta-bar{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  padding:14px 18px; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--panel); margin-bottom:18px;
}
.timer{ font-family:var(--serif); font-size:2.1rem; letter-spacing:.05em; line-height:1; color:var(--gold); font-variant-numeric:tabular-nums; }
.timer.warn{ color:var(--ng); animation:pulse 1s infinite; }
@keyframes pulse{ 50%{ opacity:.45 } }
.ta-count{ font-size:.8rem; color:var(--ink-dim); }
.ta-bar .btn{ margin-left:auto; }
.hint-wait{ margin:8px 0 0; font-size:.76rem; color:var(--ink-dim); letter-spacing:.04em; }
#taHints{ margin-top:14px; }
#taHints .hint{ animation:hint-in .35s ease; }
@keyframes hint-in{ from{ opacity:0; transform:translateY(-4px); } to{ opacity:1; transform:none; } }

.ta-result{ text-align:center; padding:clamp(28px,6vw,52px) 20px; border:1px solid var(--line); border-radius:18px; background:var(--panel); }
.ta-result.clear{ border-color:var(--gold); background:linear-gradient(160deg,rgba(217,178,95,.1),rgba(217,178,95,.02)); }
.ta-result h2{ font-family:var(--serif); font-size:clamp(1.5rem,5vw,2.2rem); letter-spacing:.14em; margin:8px 0; }
.ta-result .score{ font-family:var(--serif); font-size:2.6rem; color:var(--gold); }
.ta-result ul{ list-style:none; padding:0; margin:18px 0 24px; color:var(--ink-dim); font-size:.88rem; }
.ta-miss{ text-align:left; max-width:520px; margin:0 auto 22px; }
.ta-miss li{ margin-bottom:6px; }

/* ---------- ランキング ---------- */
.rank-tabs{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:16px; }
.rank-tab{
  border:1px solid var(--line); background:transparent; color:var(--ink-dim);
  padding:6px 16px; border-radius:99px; font-size:.82rem; transition:.18s;
}
.rank-tab:hover{ color:var(--gold-soft); border-color:var(--gold); }
.rank-tab.on{ color:var(--gold); border-color:var(--gold); background:rgba(217,178,95,.1); }

.rank-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); background:var(--panel); }
.rank-table{ width:100%; border-collapse:collapse; font-size:.86rem; min-width:400px; }
.rank-table th{
  text-align:left; font-weight:normal; font-size:.72rem; letter-spacing:.14em; color:var(--ink-dim);
  padding:12px 14px; border-bottom:1px solid var(--line); white-space:nowrap;
}
.rank-table td{ padding:11px 14px; border-bottom:1px solid rgba(42,52,80,.5); white-space:nowrap; }
.rank-table tr:last-child td{ border-bottom:none; }
.rank-table .rank-no{ font-family:var(--serif); color:var(--ink-dim); width:3em; }
.rank-table tr:nth-child(1) .rank-no{ color:var(--gold); font-size:1.05rem; }
.rank-table tr:nth-child(2) .rank-no,
.rank-table tr:nth-child(3) .rank-no{ color:var(--gold-soft); }
.rank-table tr.me{ background:rgba(217,178,95,.1); }

.rank-form{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin:6px 0 10px; }
.rank-form input{
  font:inherit; padding:11px 16px; width:min(220px,60vw);
  background:var(--bg); border:1px solid var(--line); border-radius:10px; color:var(--ink);
}
.rank-form input:focus{ outline:none; border-color:var(--gold); box-shadow:0 0 0 3px rgba(217,178,95,.15); }
.rank-form input:disabled{ opacity:.55; }
.rank-msg{ min-height:1.5em; margin:0 0 14px; font-size:.82rem; color:var(--ink-dim); }
.rank-msg.ok{ color:var(--ok); }
.rank-msg.ng{ color:var(--ng); }
#rankAfter{ margin-bottom:22px; }

/* ---------- ストーリー ---------- */
.chapter-list{ display:flex; flex-direction:column; gap:14px; }
.chapter-item{ display:flex; gap:16px; align-items:flex-start; text-align:left; width:100%; }
.chapter-item .no{ font-family:var(--serif); color:var(--gold); font-size:.72rem; letter-spacing:.2em; }
.chapter-item h3{ font-family:var(--serif); font-size:1.15rem; margin:6px 0 8px; letter-spacing:.06em; }
.chapter-item p{ margin:0; color:var(--ink-dim); font-size:.84rem; }

.scene{
  border-left:2px solid var(--gold); padding:2px 0 2px 20px; margin:0 0 28px;
  white-space:pre-wrap; font-family:var(--serif); font-size:1rem; line-height:2.1; color:#d7ddec;
}
.ending{
  border:1px solid rgba(217,178,95,.35); background:rgba(217,178,95,.06);
  border-radius:var(--radius); padding:22px 24px; margin-top:26px;
  white-space:pre-wrap; font-family:var(--serif); line-height:2.1;
}
.ending b{ display:block; font-size:.72rem; letter-spacing:.2em; color:var(--gold); margin-bottom:10px; font-family:var(--sans); }
.story-view{ display:none; }
.story-view.show{ display:block; }
.back-link{ background:none; border:none; color:var(--ink-dim); padding:0; font-size:.82rem; margin-bottom:18px; }
.back-link:hover{ color:var(--gold-soft); }
.step-note{ font-size:.8rem; color:var(--ink-dim); margin:0 0 14px; }

/* ---------- 紙吹雪 ---------- */
#confetti{ position:fixed; inset:0; pointer-events:none; z-index:999; overflow:hidden; }
#confetti i{ position:absolute; width:9px; height:14px; top:-20px; opacity:0; animation:fall linear forwards; }
@keyframes fall{
  0%{ opacity:1; transform:translateY(0) rotate(0deg); }
  100%{ opacity:0; transform:translateY(105vh) rotate(720deg); }
}

/* ---------- フッター ---------- */
footer{ border-top:1px solid var(--line); margin-top:40px; padding:24px 0 40px; color:var(--ink-dim); font-size:.78rem; }
.foot-row{ display:flex; gap:14px; align-items:center; flex-wrap:wrap; justify-content:space-between; }

@media (prefers-reduced-motion: reduce){ *{ animation:none !important; transition:none !important; } }

/* 静止画 ⇄ 一部隠し動画 の切り替えボタン */
.q-switch{
  display:flex; gap:0; justify-content:center;
  margin:10px auto 0; width:fit-content;
  border:1px solid var(--line); border-radius:99px; overflow:hidden;
}
.q-switch button{
  border:none; background:transparent; color:var(--ink-dim);
  padding:6px 18px; font-size:.8rem; letter-spacing:.06em; transition:.18s;
}
.q-switch button:hover{ color:var(--gold-soft); }
.q-switch button.on{ background:var(--panel-2); color:var(--gold); }

/* ---------- 評価メモ(点数・指摘点) ---------- */
.fb{
  margin-top:20px; padding:16px 18px;
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
}
.fb > b{
  display:block; font-size:.72rem; letter-spacing:.16em;
  color:var(--gold); margin-bottom:10px; font-weight:600;
}
.fb-score{ display:flex; align-items:center; gap:6px; flex-wrap:wrap; margin-bottom:10px; }
.fb-score button{
  width:38px; height:38px; border-radius:10px;
  border:1px solid var(--line); background:var(--bg); color:var(--ink-dim);
  font-size:.9rem; transition:.15s;
}
.fb-score button:hover{ border-color:var(--gold); color:var(--gold-soft); }
.fb-score button.on{ background:linear-gradient(135deg,var(--gold),#b8913f); border-color:transparent; color:#1a1405; font-weight:700; }
.fb-hint{ font-size:.74rem; color:var(--ink-dim); margin-left:4px; }
.fb textarea{
  width:100%; font:inherit; font-size:.9rem; line-height:1.7;
  padding:10px 14px; border-radius:10px; resize:vertical;
  background:var(--bg); border:1px solid var(--line); color:var(--ink);
}
.fb textarea:focus{ outline:none; border-color:var(--gold); box-shadow:0 0 0 3px rgba(217,178,95,.15); }
.fb-row{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-top:10px; }
.fb-msg{ font-size:.78rem; color:var(--ink-dim); }
.fb-msg.ok{ color:var(--ok); }
.fb-msg.ng{ color:var(--ng); }
.fb-link{ margin-left:auto; font-size:.78rem; }

/* 隠し謎は選択画面で問題画像を読み込まず、伏せたカードを表示する */
.puzzle-card .thumb-hidden{
  background:linear-gradient(160deg,#101728,#1b2940);
  border:1px solid var(--line);
  flex-direction:column; gap:12px;
}
.thumb-hidden .hidden-mark{
  font-family:var(--serif); font-size:4rem; line-height:1;
  color:var(--gold);
}
.thumb-hidden .hidden-label{
  font-size:.8rem; letter-spacing:.12em; color:var(--ink-dim);
}

/* サイト情報リンク */
.site-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:18px;font-size:.76rem;}.site-links a{display:inline-block;padding:4px 0;text-underline-offset:4px;}