:root{
  --bg:#f7f6f3; --card:#ffffff; --ink:#1d1d1f; --muted:#6b6b70; --line:#e3e1dc;
  --accent:#c2410c; --accent-soft:#fdeee6; --chord:#b4410c; --ok:#15803d; --ok-soft:#e7f6ec;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#141416; --card:#1d1d20; --ink:#ececee; --muted:#9d9da3; --line:#2f2f34;
    --accent:#fb8a4c; --accent-soft:#3a2418; --chord:#ffa36e; --ok:#4ade80; --ok-soft:#173022;
  }
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header.site{border-bottom:1px solid var(--line);background:var(--card)}
header.site .wrap{display:flex;align-items:center;gap:10px;padding:14px 16px}
.brand{font-weight:700;letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.brand span{color:var(--accent)}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
h1{font-size:clamp(1.6rem,4vw,2.2rem);letter-spacing:-.02em;margin:28px 0 4px}
.lede{color:var(--muted);margin:0 0 22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:20px}
.card h2{font-size:1.15rem;margin:0 0 12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:820px){.grid2{grid-template-columns:1fr}}
label{display:block;font-size:.8rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px}
select,button,textarea{font:inherit;color:inherit}
select{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-width:0;width:100%}
textarea{width:100%;min-height:340px;resize:vertical;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;font-family:var(--mono);font-size:14px;line-height:1.45;white-space:pre;overflow:auto}
.controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:14px;align-items:end}
@media (max-width:820px){.controls{grid-template-columns:1fr 1fr}}
.stepper{display:flex;align-items:center;gap:6px}
.stepper button{width:40px;height:40px;border-radius:8px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-size:1.2rem;line-height:1}
.stepper button:hover{border-color:var(--accent);color:var(--accent)}
.stepper output{flex:1;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}
.btn{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:7px 12px;cursor:pointer;font-size:.9rem}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.08);color:#fff}
.out{min-height:340px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;font-family:var(--mono);font-size:14px;line-height:1.45;white-space:pre;overflow:auto;margin:0}
.out .c{color:var(--chord);font-weight:700}
.panehead{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;gap:8px;flex-wrap:wrap}
.panehead label{margin:0}
.banner{display:none;background:var(--accent-soft);border-radius:8px;padding:8px 12px;margin-bottom:8px;font-size:.92rem}
.banner.show{display:block}
.detect{font-size:.85rem;color:var(--muted);margin-top:4px;min-height:1.3em}
.sugg{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px;font-size:.92rem}
.sugg .muted{color:var(--muted)}
.chip{border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:var(--card);cursor:pointer;font-size:.88rem}
.chip:hover,.chip.on{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
th{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
td.num{font-variant-numeric:tabular-nums;font-weight:700}
tr.best td{background:var(--ok-soft)}
.tag{font-size:.75rem;font-weight:700;color:var(--ok);margin-left:6px}
.bigans{font-size:1.15rem;margin-top:12px;padding:12px;border-radius:10px;background:var(--accent-soft)}
.bigans b{color:var(--accent)}
.row3{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.faq h3{font-size:1rem;margin:16px 0 4px}
.faq p{margin:0;color:var(--muted)}
footer{color:var(--muted);font-size:.85rem;text-align:center;padding:30px 16px}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:8px 16px;border-radius:8px;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.show{opacity:1}

header.site .wrap{justify-content:space-between}
nav.top a{color:var(--ink);text-decoration:none;margin-left:18px;font-size:.95rem}
nav.top a:hover{color:var(--accent)}
.brand{font-size:1.2rem}
.crumbs{font-size:.85rem;color:var(--muted);margin-top:18px}
.crumbs a{color:var(--muted)}
.crumbs + h1{margin-top:6px}
footer a{color:var(--muted);margin:0 8px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-bottom:28px}
.tile{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
a.tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.tile h3{margin:0 0 4px;font-size:1.05rem}
.tile p{margin:0;color:var(--muted);font-size:.92rem}
.tile .ico{font-size:1.6rem;margin-bottom:6px}
.tile.soon{opacity:.6}
.tile.soon .ico{display:flex;justify-content:space-between;align-items:center}
.tile.soon .ico::after{white-space:nowrap;content:"Coming soon";font-size:.7rem;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:2px 8px;}
.section-h{font-size:1.25rem;margin:8px 0 12px}
.prose{max-width:720px}
.prose p,.prose li{color:var(--ink)}
.hero{padding:20px 0 6px}
.hero p{font-size:1.1rem;color:var(--muted);margin:4px 0 24px}