:root{--bg:#eaf0ef;--panel:#fff;--ink:#12211f;--mute:#5a6b68;--line:#cfdad8;--acc:#2b4bdc;--on:#fff;--bad:#b3261e;--ok:#1b7a4b}
@media(prefers-color-scheme:dark){:root{--bg:#0e1716;--panel:#16231f;--ink:#e6f0ee;--mute:#93a7a3;--line:#27403a;--acc:#8fa6ff;--on:#0e1716;--bad:#ff8a80;--ok:#6fdc9f}}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:16px/1.5 "Avenir Next","Segoe UI",system-ui,sans-serif;padding:env(safe-area-inset-top) 0 calc(72px + env(safe-area-inset-bottom))}
main{max-width:720px;margin:0 auto;padding:16px}
h1{font-size:2rem;line-height:1.1;margin:.2em 0;letter-spacing:-.02em}h2{font-size:1.2rem;margin:1.2em 0 .4em}
.tag{color:var(--mute);margin:0 0 1rem}
section[hidden],#app[hidden]{display:none}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:10px 0}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.sp{justify-content:space-between}
button,.btn{font:inherit;background:var(--acc);color:var(--on);border:0;border-radius:8px;padding:9px 14px;cursor:pointer}
button.alt,.btn.alt{background:transparent;color:var(--ink);border:1px solid var(--line)}
button.bad{background:var(--bad);color:#fff}
input,select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px;width:100%}
input[type=checkbox]{width:auto}label{display:block;margin:8px 0 2px;color:var(--mute);font-size:.9rem}
label.i{display:flex;gap:8px;align-items:center;color:var(--ink)}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
.big{font-size:1.9rem;font-weight:700;letter-spacing:-.02em}.mute{color:var(--mute);font-size:.9rem}
.bad-t{color:var(--bad)}.ok-t{color:var(--ok)}
.diff{display:grid;gap:8px}.diff>div{padding:8px;border-radius:8px;background:var(--bg);border:1px solid var(--line)}
nav{position:fixed;bottom:0;left:0;right:0;display:flex;background:var(--panel);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
nav button{flex:1;background:none;color:var(--mute);border-radius:0;padding:14px 4px;font-size:.85rem}
nav button[aria-current=true]{color:var(--acc);font-weight:700;box-shadow:inset 0 3px var(--acc)}
dialog{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:12px;max-width:min(560px,94vw)}
dialog::backdrop{background:#0008}canvas{max-width:100%;border-radius:8px}
code{font-size:.8rem;word-break:break-all}
.gb{font-size:3rem;font-weight:700;letter-spacing:-.03em;line-height:1.1}.gb small{font-size:1rem;font-weight:400}
#gd{width:100vw;max-width:100vw;height:100vh;max-height:100vh;margin:0;border:0;border-radius:0;background:#000;color:#fff;text-align:center;font-size:1.4rem}#gd .gb{font-size:min(26vw,8rem)}
.ins h2{margin-top:0}
.sr{position:absolute;width:0;height:0;overflow:hidden}
.ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.welcome{max-width:440px;margin:0 auto;text-align:center}.welcome .card{text-align:left}
.wlogo{border-radius:20px;margin:8px 0 0;box-shadow:0 6px 20px #2b4bdc44}.welcome h1{font-size:2.4rem}
.wart{display:block;margin:12px auto;height:auto;max-width:60%}
.chips{list-style:none;margin:12px 0;padding:0;display:grid;gap:8px;text-align:left}
.chips li{display:flex;gap:12px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 14px}.chips .ic{color:var(--acc)}
[hidden]{display:none!important}.wart{max-width:44%}