/* 脱毛のしくみ */
:root{--bg:#0f1a26;--panel:#16253a;--line:#25384f;--ink:#e6edf3;--muted:#8fa3b5;--acc:#ffb37a;
  --shave:#7fc8ff;--pluck:#ffd166;--light:#ff8fb1;
  --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}
:root[lang=en] [lang=ja],:root:not([lang=en]) [lang=en]{display:none!important}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body)}
#app{max-width:1000px;margin:0 auto}
button,select,input{font:inherit;color:inherit}
button,select{background:var(--panel);border:1px solid var(--line);border-radius:8px;min-height:36px;padding:4px 12px;cursor:pointer}
button:hover{border-color:var(--acc)}
button:disabled{opacity:.4;cursor:default}

/* 上に固定する部分 */
#pin{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line);padding-bottom:4px}
#top{display:flex;align-items:center;gap:12px;padding:6px 14px 2px;flex-wrap:wrap;justify-content:space-between}
#top h1{font-family:var(--f-display);font-weight:400;font-size:20px;margin:0}
#who{font-size:13px;color:var(--muted);margin-left:auto}
.langsw{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.langsw button{font:inherit;border:0;background:none;min-height:28px;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}
#zoom{display:flex;gap:4px;margin-left:auto;align-self:center}
#zoom button{min-height:30px;padding:2px 9px;font-size:14px;background:rgba(22,37,58,.85)}
#siteBox{font-size:14px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
#siteBox label{display:flex;align-items:center;gap:4px}
#siteBox select{max-width:190px;font-size:13px;padding:2px 6px}
#tools{display:flex;gap:6px;padding:4px 14px}
.tool{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;min-height:40px;font-weight:700}
.tool .ic{font-size:17px}
.tool[aria-checked=true]{background:var(--c,var(--acc));border-color:var(--c,var(--acc));color:#1c1513}
#hint{margin:2px 14px 0;font-size:13px;color:var(--muted);min-height:20px}
#stage{position:relative;height:min(44vh,400px)}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:pan-y}
#tip{position:absolute;max-width:260px;background:rgba(20,14,12,.95);border:1px solid var(--acc);border-radius:8px;padding:6px 9px;font-size:13px;line-height:1.6;pointer-events:none;z-index:3}
#toast{position:absolute;left:50%;bottom:8px;max-width:calc(100% - 16px);overflow:hidden;text-overflow:ellipsis;transform:translateX(-50%);background:rgba(20,14,12,.92);border:1px solid var(--acc);border-radius:18px;padding:5px 14px;font-size:13px;pointer-events:none;z-index:3;white-space:nowrap}
#status{display:flex;gap:12px;flex-wrap:wrap;padding:2px 14px;font-size:13px;min-height:22px;align-items:baseline}
#counts{font-family:var(--f-mono);color:var(--muted)}
#now{flex:1;min-width:200px}
#timebar{display:flex;align-items:center;gap:6px;padding:4px 14px}
#play{width:44px;padding:0;font-size:16px}
.step{padding:4px 10px}
#day{font-family:var(--f-mono);margin-left:auto;min-width:64px;text-align:right}
#undo{width:44px;padding:0;font-size:18px}
#guide{display:flex;gap:10px;align-items:center;padding:2px 14px;min-height:48px}
#gtext{flex:1;margin:0;font-size:14px;line-height:1.6}
.gbtn{display:flex;align-items:center;gap:6px;flex-shrink:0}
#gnum{font-family:var(--f-mono);font-size:12px;color:var(--muted);min-width:34px;text-align:center}
#gnext{background:var(--acc);color:#2a1d1a;border-color:var(--acc);font-weight:700}

/* スクロールする部分 */
.sec{padding:10px 14px}
.sec h2{font-size:15px;margin:8px 0 6px}
#gr{width:100%;height:230px;display:block;touch-action:pan-y;cursor:pointer}
.hint{color:var(--muted);font-size:13px;margin:4px 0;line-height:1.7}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;vertical-align:-1px;margin:0 2px 0 6px}
.row{display:flex;align-items:center;gap:8px;margin:6px 0;flex-wrap:wrap}
#log{margin:0;padding-left:0;list-style:none;font-size:13px;line-height:1.7;max-height:280px;overflow:auto}
#log li{border-bottom:1px solid var(--line);padding:3px 0;display:flex;gap:8px}
#log .d{font-family:var(--f-mono);color:var(--muted);min-width:64px}
#log .n{font-family:var(--f-mono);color:var(--acc);min-width:24px}
.warn{border:1px solid #ff8fb1;background:rgba(255,143,177,.08);border-radius:8px;padding:8px 12px;font-size:13px;line-height:1.7;margin:4px 0 10px}
.warn b{color:#ff8fb1}
.cond{margin:4px 0;padding-left:1.2em}
#about{color:var(--muted);font-size:14px;line-height:1.8;padding-bottom:28px}
#about summary{cursor:pointer;color:var(--ink);min-height:36px;display:flex;align-items:center}
#about a{color:var(--acc)}
#about b{color:var(--ink)}
#srcs li{margin-bottom:4px}

@media (max-width:600px){
  #top h1{font-size:17px}
  #stage{height:180px}
  #zoom button{min-height:26px;padding:1px 7px;font-size:12px}
  #tools{gap:4px;padding:4px 10px}
  .tool{font-size:12px;gap:2px;padding:2px 3px;white-space:nowrap;min-height:38px}
  .tool .ic{font-size:13px}
  #hint{font-size:12px;margin:2px 10px 0}
  #gtext{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;cursor:pointer}
  #gtext.open{display:block}
  .step{padding:4px 6px;font-size:13px}
  #gtext{font-size:13px}
  #guide{align-items:flex-start}
  .gbtn{flex-direction:column-reverse;gap:2px}
  #status{font-size:12px;row-gap:0}
  #now{order:3;flex-basis:100%}   /* 1行目に 数と拡大ボタン、いま起きたことは2行目 */
}