/* 目のなかの光の道 */
:root[lang=en] [lang=ja],:root:not([lang=en]) [lang=en]{display:none!important}
:root{--bg:#13202e;--ink:#e8f0f4;--muted:#a3b4bf;--acc:#7fd4ff;--panel:rgba(12,22,32,0.86);--line:rgba(232,240,244,0.16);
  --f-display:'Dela Gothic One','Yu Gothic',sans-serif;--f-body:'Zen Kaku Gothic New','Yu Gothic',system-ui,sans-serif;--f-mono:'IBM Plex Mono',Consolas,monospace;color-scheme:dark}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--f-body)}
#app{display:flex;flex-direction:column;min-height:100%;position:relative}
#pin{display:contents}
#vstate{display:none}
#top{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;padding:10px 16px 4px}
#top h1{font-family:var(--f-display);font-weight:400;font-size:22px;margin:0}
#top .sub{color:var(--muted);font-size:13px}
.langsw{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;align-self:center;margin-left:auto}
.langsw button{font:inherit;border:0;background:none;padding:3px 8px;font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--muted);cursor:pointer}
.langsw button[aria-pressed="true"]{background:var(--acc);color:#0b1620}
#stage{flex:1;position:relative;min-height:500px;overflow:hidden}
#cvwrap{position:absolute;inset:0}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
#swap{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);font:inherit;font-weight:700;font-size:14px;background:rgba(12,22,32,0.86);color:#ffd66a;border:1.5px solid #ffd66a;border-radius:20px;padding:8px 16px;cursor:pointer;white-space:nowrap}
#swap:hover{background:#ffd66a;color:#0b1620}

#tour{position:absolute;left:16px;top:8px;width:min(540px,calc(100% - 330px));background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 12px;display:flex;gap:10px;align-items:center}
#tour p{margin:0;font-size:14px;line-height:1.6;flex:1}
#tourNum{font-family:var(--f-mono);font-size:11px;color:var(--muted);align-self:flex-start;padding-top:3px}
#next{flex:none;font:inherit;font-weight:700;font-size:15px;background:var(--acc);color:#0b1620;border:0;border-radius:8px;padding:10px 16px;cursor:pointer}
#next:hover{filter:brightness(1.1)}

#info{position:absolute;left:16px;bottom:12px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px;min-width:250px}
#info div{display:flex;gap:8px;align-items:baseline;line-height:1.7}
#info span{color:var(--muted);flex:1}
#info b{font-family:var(--f-mono);font-weight:500;white-space:nowrap}
#info span{white-space:nowrap}
#info div.wide{flex-wrap:wrap;justify-content:flex-end}
#info small{color:var(--muted);font-family:var(--f-mono)}
#info .state{margin-bottom:2px;font-weight:700;line-height:1.5}
#info .state.ok{color:#9be59b}
#info .state.blur{color:#ffb070}

#view{position:absolute;right:16px;top:8px;width:290px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px}
#view .vtop{display:flex;align-items:flex-start;gap:6px;margin-bottom:6px}
#viewHead{font-size:13px;line-height:1.5;flex:1}
.vtabs{display:flex;gap:2px;flex:none}
.vtabs button{font:inherit;font-size:11px;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:2px 6px;cursor:pointer}
.vtabs button.on{background:var(--acc);color:#0b1620;border-color:var(--acc);font-weight:700}
#viewHead small{color:var(--muted);font-size:11px}
#viewHead em{font-style:normal;color:#ffd66a;font-family:var(--f-mono);font-size:11px;white-space:nowrap}
.chartbox{position:relative;height:190px;border-radius:6px;overflow:hidden;background:#f4f1ea}
.chartbox canvas{position:absolute;inset:0;width:100%;height:100%}
#afterBtn{position:absolute;right:6px;bottom:6px;font:inherit;font-size:12px;font-weight:700;background:rgba(12,22,32,0.86);color:#ffd66a;border:1.5px solid #ffd66a;border-radius:14px;padding:5px 10px;cursor:pointer;z-index:2}
.vnote{font-size:11px;color:var(--muted);margin-top:4px}

#tip{position:absolute;max-width:300px;background:#f4f1ea;color:#16202a;border-radius:8px;padding:8px 10px;font-size:13px;line-height:1.6;pointer-events:none;box-shadow:0 4px 16px rgba(0,0,0,.4);z-index:5}

#timebar{border-top:1px solid var(--line);padding:6px 16px 4px}
.tbhead{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:13px}
.tbnote{color:var(--muted);font-size:12px;flex:1}
.tbgrp{display:flex;gap:3px;align-items:center}
.tblab{color:var(--muted);font-size:12px;margin-right:3px}
.tbhead button,#controls button{font:inherit;font-size:13px;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:5px 9px;cursor:pointer}
.tbhead button.on,#controls button.on{background:var(--acc);color:#0b1620;border-color:var(--acc);font-weight:700}
#resume{background:#ffd66a!important;color:#0b1620!important;border-color:#ffd66a!important;font-weight:700}
#tl{display:block;width:100%;height:176px;margin-top:4px;touch-action:none;cursor:col-resize}

#controls{display:flex;flex-wrap:wrap;gap:8px 18px;padding:10px 16px;border-top:1px solid var(--line)}
#controls .grp{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
#controls .grp[hidden]{display:none}
#controls .gname{font-size:12px;color:var(--muted);margin-right:4px}
#controls .look{flex:1 1 100%}
#dist{flex:1;min-width:140px;max-width:420px;accent-color:var(--acc);margin-left:6px}
#controls .chk{font-size:13px;gap:6px;cursor:pointer}

#about,#about-en{padding:8px 16px 24px;color:var(--muted);font-size:14px;line-height:1.8;max-width:900px}
#about summary,#about-en summary{cursor:pointer;color:var(--ink)}
#about a,#about-en a{color:var(--acc)}
#about h3,#about-en h3{color:var(--ink);font-size:15px;margin:14px 0 4px}

@media (max-width:719px){
  /* 狭い画面（基本ルール RULES 9章）: 図と見え方を上に固定（#pin）、案内・数字・時間のグラフ・ボタン・説明はスクロール。
     #stage を display:contents にして、#pin の sticky がページ全体にきくようにする */
  #top{padding:8px 12px 2px;gap:4px 10px}
  #top h1{font-size:19px}
  #top .sub{font-size:12px}
  #stage{display:contents}
  #pin{display:block;position:sticky;top:0;z-index:4;background:var(--bg);padding:4px 8px 6px;box-shadow:0 8px 12px -8px rgba(0,0,0,.7);border-bottom:1px solid var(--line)}
  #cvwrap{position:relative;inset:auto;height:200px}
  #swap{left:auto;right:4px;bottom:4px;transform:none;font-size:13px;padding:7px 11px}
  #view{position:static;width:auto;margin-top:4px;padding:6px;display:grid;grid-template-columns:54% minmax(0,1fr);gap:3px 8px;align-items:start}
  #viewHead em{white-space:normal;overflow-wrap:anywhere}
  #view .vtop{grid-column:2;grid-row:1;flex-direction:column;gap:3px;margin:0}
  #viewHead{font-size:12px}
  #viewHead small{display:none}
  .vtabs button{padding:3px 7px}
  .chartbox{grid-column:1;grid-row:1/span 3;height:124px}
  #vstate{display:block;grid-column:2;grid-row:2;font-size:12px;font-weight:700;line-height:1.45}
  #vstate.ok{color:#9be59b}
  #vstate.blur{color:#ffb070}
  .vnote{grid-column:2;grid-row:3;font-size:10.5px;margin:0;line-height:1.4}
  #tour{position:static;width:auto;margin:8px 8px 0;padding:6px 8px 6px 10px;gap:8px}
  #tour p{font-size:13.5px;line-height:1.55}
  #tourNum{display:none}
  #next{padding:12px 10px;font-size:14px;align-self:stretch}
  #info{position:static;min-width:0;margin:8px 8px 0;padding:6px 8px;font-size:12.5px;display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
  #info .state{display:none}
  #info div{line-height:1.6;gap:4px}
  #info small{display:none}
  #info div.wide{grid-column:1/-1}
  #timebar{padding:6px 8px 2px}
  .tbnote{flex-basis:100%;order:5}
  #tl{height:190px}
  #controls{padding:8px 8px 10px;gap:8px 12px}
  #controls button{min-height:36px;padding:6px 10px}
  .tbhead{gap:6px 6px}
  .tbhead button{min-height:34px;padding:4px 7px}
  .tblab{display:none}
  #dist{flex-basis:100%;max-width:none;margin:6px 0 0;height:28px}
}