/* ブラウン管のドット絵 */
:root{--bg:#101820;--panel:#16222c;--line:#2a3a48;--ink:#e8f0f4;--muted:#a3b4bf;--acc:#7fe0a0;
  --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;background:var(--bg);color:var(--ink);font-family:var(--f-body)}
[hidden]{display:none!important}
:root[lang=en] [lang=ja],:root:not([lang=en]) [lang=en]{display:none!important}
.langsw{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;align-self:center;margin-left:auto}
.langsw button{border:0;background:none;padding:3px 8px;min-height:30px;font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--muted);cursor:pointer}
.langsw button[aria-pressed="true"]{background:var(--acc);color:#0b1a12}
button{font:inherit;color:inherit}

/* 上に固定: 見出し・画面・ひとこと */
#pin{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
#top{display:flex;align-items:baseline;gap:12px;padding:8px 16px 4px;flex-wrap:wrap}
#top h1{font-family:var(--f-display);font-weight:400;font-size:20px;margin:0}
#top .sub{color:var(--muted);font-size:13px}
#stage{position:relative;height:min(64vh,calc(100vw * 0.875 + 8px));min-height:220px;background:#000;touch-action:none;overflow:hidden;user-select:none;-webkit-user-select:none}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab}
#cv:active{cursor:grabbing}
#nogl{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--muted)}
.tag{position:absolute;top:8px;font-size:12px;padding:2px 8px;border-radius:10px;background:rgba(0,0,0,.6);pointer-events:none}
.tag.l{left:8px}.tag.r{right:8px;color:var(--acc)}
#divider{position:absolute;top:0;bottom:0;width:0;border-left:2px solid rgba(255,255,255,.75);pointer-events:none}
#handle{position:absolute;top:50%;left:0;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;
  border:2px solid #fff;background:rgba(16,24,32,.85);font-size:11px;letter-spacing:-2px;cursor:ew-resize;pointer-events:auto;touch-action:none}
#handle:focus-visible{outline:3px solid var(--acc)}
#hud{position:absolute;left:8px;bottom:8px;font-size:12px;line-height:1.5;padding:3px 8px;border-radius:8px;background:rgba(0,0,0,.6);pointer-events:none;max-width:60%}
#zoom{position:absolute;right:8px;bottom:8px;display:flex;gap:6px}
#zoom button{min-width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:rgba(16,24,32,.85);cursor:pointer;font-size:14px;padding:0 10px}
#zoom button.dots[aria-pressed="true"]{background:var(--acc);color:#0b1a12;border-color:var(--acc);font-weight:700}
#cap{margin:0;padding:8px 16px;font-size:14px;line-height:1.6;min-height:2.6em}
/* スマホの横向き（高さが低い）: 左に画面を固定、右の列で操作をスクロール */
@media (orientation:landscape) and (max-height:520px){
  #app{display:grid;grid-template-columns:minmax(0,58%) minmax(0,42%);align-items:start}
  #pin{height:100vh;height:100dvh;display:flex;flex-direction:column;border-bottom:0;border-right:1px solid var(--line)}
  #top{padding:4px 12px 2px}
  #top h1{font-size:15px}
  #top .sub{display:none}
  #stage{flex:1;height:auto;min-height:0}
  #cap{font-size:12px;line-height:1.45;padding:4px 12px;min-height:0;max-height:4.5em;overflow:auto}
  #panel{padding:4px 12px 32px;max-width:none}
  #hud{font-size:11px}
}
@media (max-width:520px){
  #top .sub{display:none}
  #top h1{font-size:17px}
  #hud{font-size:11px;max-width:calc(100% - 16px);bottom:auto;top:40px}
  #zoom button{min-width:38px;height:38px}
  #cap{font-size:13px;line-height:1.5}
}

/* 下はスクロール */
#panel{max-width:760px;margin:0 auto;padding:4px 16px 40px}
.row{border-top:1px solid var(--line);padding:12px 0}
.row:first-child{border-top:0}
h2{font-size:15px;margin:0 0 8px}
h3{font-size:14px;margin:14px 0 6px}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button,.file,.focus{min-height:38px;padding:6px 12px;border-radius:10px;border:1px solid var(--line);background:var(--panel);cursor:pointer;font-size:14px;display:inline-flex;align-items:center}
.seg button.on,.seg .file.on{border-color:var(--acc);color:#0b1a12;background:var(--acc);font-weight:700}
.file input{display:none}
.focus{margin-top:8px}
.note{color:var(--muted);font-size:13px;line-height:1.7;margin:6px 0 0}
.note.scope{border-top:1px solid var(--line);padding-top:10px;margin:0;color:var(--ink)}
#mech{list-style:none;margin:8px 0 0;padding:0}
#mech li{display:grid;grid-template-columns:auto 1fr auto;gap:4px 10px;align-items:start;padding:8px 0;border-top:1px dashed var(--line)}
#mech li:first-child{border-top:0}
#mech label{display:flex;gap:8px;align-items:center;font-weight:700;cursor:pointer;min-height:36px}
#mech input{width:20px;height:20px;accent-color:var(--acc)}
#mech .badge{font-size:11px;font-weight:400;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:0 5px;margin-left:4px}
#mech .only{min-height:36px;padding:4px 10px;border-radius:8px;border:1px solid var(--line);background:var(--panel);cursor:pointer;font-size:13px}
#mech p{grid-column:1/4;margin:0;color:var(--muted);font-size:13px;line-height:1.7}
details summary{cursor:pointer;font-weight:700;min-height:32px;display:flex;align-items:center}
#about,#aboutEn{color:var(--muted);font-size:14px;line-height:1.8}
#about summary,#aboutEn summary{color:var(--ink)}
#about a,#aboutEn a{color:var(--acc)}
#about ul,#aboutEn ul{padding-left:20px}

/* サムネイル撮影用（_dev/tools/thumb.html が body に .thumb をつける）: 画面だけを窓いっぱいに */
.thumb #top,.thumb #cap,.thumb #panel,.thumb #hud,.thumb #zoom,.thumb .tag{display:none!important}
.thumb #app{display:block!important;height:100vh}
.thumb #pin{position:static;height:100vh;border:0}
.thumb #stage{height:100vh!important}
.thumb .tag{top:22px;font-size:26px;padding:6px 18px;border-radius:24px;background:rgba(0,0,0,.72)}
.thumb .tag.l{left:24px}.thumb .tag.r{right:24px}
.thumb #handle{width:64px;height:64px;font-size:16px}

/* PC（横に広い画面）: 左に画面を大きく、右の列に操作（ほかのアプリと同じ並び）。右の列だけスクロール */
@media (min-width:900px) and (min-aspect-ratio:1/1){
  html,body{height:100%;overflow:hidden}
  #app{display:grid;grid-template-columns:minmax(0,1fr) 380px;height:100vh;height:100dvh}
  #pin{position:relative;height:100%;display:flex;flex-direction:column;border-bottom:0;border-right:1px solid var(--line)}
  #stage{flex:1;height:auto;min-height:0}
  #panel{height:100%;overflow-y:auto;max-width:none;margin:0;padding:8px 18px 40px;box-sizing:border-box}
  #cap{min-height:0}
}