:root{--ink:#1a2332;--sub:#5b6b7f;--line:#e3e8ef;--bg:#f7f9fc;--card:#fff;--brand:#2456d6;--brand-ink:#16388f;--ok:#0d7a4f}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
header.site{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.logo{font-weight:800;font-size:18px;color:var(--brand);text-decoration:none;letter-spacing:.2px}
nav.top a{color:var(--sub);text-decoration:none;margin-left:18px;font-size:14px}
nav.top a:hover{color:var(--brand)}
main{max-width:880px;margin:0 auto;padding:28px 20px 60px}
h1{font-size:28px;margin:6px 0 4px}
h2{font-size:20px;margin:34px 0 10px}
p.lede{color:var(--sub);margin:0 0 22px;font-size:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:22px}
label{font-size:13px;font-weight:600;color:var(--sub);display:block;margin-bottom:6px}
textarea{width:100%;min-height:160px;border:1px solid var(--line);border-radius:8px;padding:12px;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;resize:vertical}
textarea:focus,input:focus,select:focus{outline:2px solid #b9ccf3;border-color:var(--brand)}
input[type=text],input[type=file],input[type=color],select{border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:14px;background:#fff;width:100%}
.row{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--brand-ink)}
.btn.ghost{background:#eef2fa;color:var(--brand)}
.output{white-space:pre-wrap;word-break:break-word;background:#0f172a;color:#d7e3ff;border-radius:8px;padding:14px;font:13px/1.5 ui-monospace,Menlo,Consolas,monospace;min-height:44px;margin-top:12px}
.stat{display:inline-block;background:#eef2fa;border-radius:8px;padding:8px 14px;margin:4px 8px 4px 0;font-size:14px}
.stat b{font-size:18px;display:block}
.muted{color:var(--sub);font-size:14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.grid a{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink)}
.grid a:hover{border-color:var(--brand)}
.grid h3{margin:0 0 4px;font-size:16px;color:var(--brand)}
.grid p{margin:0;font-size:13px;color:var(--sub)}
footer.site{border-top:1px solid var(--line);background:var(--card);padding:22px 20px;text-align:center;font-size:13px;color:var(--sub)}
footer.site a{color:var(--sub);margin:0 8px}
.faq dt{font-weight:700;margin-top:14px}
.faq dd{margin:4px 0 0;color:var(--sub)}
.badge{display:inline-block;background:#e8f5ee;color:var(--ok);font-size:12px;font-weight:700;border-radius:99px;padding:3px 10px;margin-bottom:8px}
#drop{border:2px dashed #b9c6da;border-radius:10px;padding:26px;text-align:center;color:var(--sub)}
canvas.preview{max-width:100%;border-radius:8px;margin-top:10px}
table.swatch{border-collapse:collapse}
@media (max-width:640px){nav.top a{margin-left:10px}h1{font-size:23px}}