:root{--bg:#f7f8fa;--card:#fff;--ink:#17202a;--muted:#5b6b7a;--brand:#0b6e5d;--brand2:#0e9a82;--line:#dce3e9;--warn:#fff7e6}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:var(--brand)}
header{background:#0b2e28;color:#fff}
.top{max-width:1080px;margin:0 auto;padding:14px 18px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.logo{font-weight:800;font-size:24px;color:#fff;text-decoration:none}
.logo span{color:#6fe3c8}
nav{display:flex;gap:14px;flex-wrap:wrap;margin-left:auto}
nav a{color:#d8efe9;text-decoration:none;font-size:15px}
nav a:hover{text-decoration:underline}
main{max-width:1080px;margin:0 auto;padding:20px 18px 60px}
.hero{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.15;margin:0 0 10px}
.lead{font-size:18px;color:var(--muted);max-width:720px}
.pill{display:inline-block;background:#e2f5ef;color:#0b6e5d;border-radius:999px;padding:5px 12px;font-weight:700;font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-top:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.toolcard{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink)}
.toolcard:hover{border-color:var(--brand)}
.toolcard strong{display:block;font-size:17px;color:var(--brand)}
.toolcard span{color:var(--muted);font-size:14px}
label{display:block;font-weight:600;margin:12px 0 4px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
textarea{min-height:110px}
button,.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:9px;padding:11px 18px;font-weight:700;cursor:pointer;text-decoration:none;margin:6px 6px 6px 0}
button.secondary{background:#eef2f4;color:var(--ink)}
button:hover,.btn:hover{filter:brightness(1.08)}
.result{margin-top:16px;background:#f2f7f5;border:1px solid #cfe6dd;border-radius:10px;padding:16px;white-space:pre-wrap;word-break:break-word}
.result:empty{display:none}
.privacy{background:var(--warn);border:1px solid #f0d9a0;border-radius:10px;padding:14px;margin-top:18px}
.muted{color:var(--muted)}
.small{font-size:14px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:200px}
.check{margin:6px 0}
.check label{display:inline;font-weight:400}
.check input{width:auto}
canvas,img.preview{max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#fff}
.hanging{padding-left:36px;text-indent:-36px}
footer{border-top:1px solid var(--line);background:#fff}
.foot{max-width:1080px;margin:0 auto;padding:20px 18px;color:var(--muted);font-size:14px}
.foot a{margin-right:14px}
details{margin:10px 0}
summary{font-weight:700;cursor:pointer}
@media(max-width:640px){.top{flex-direction:column;align-items:flex-start}nav{margin-left:0}.hero{padding:20px}}