:root{
  --bg:#ffffff;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --soft:#f3f4f6;
  --accent:#2563eb;
  --ring:#3b4758;
  --check:#86b7e6;
  --radius:16px;
  --shadow: 0 10px 30px rgba(17,24,39,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:20px}
.topbar{
  position:sticky;top:0;z-index:10;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar .wrapbar{max-width:1100px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650}
.brand span{letter-spacing:.2px}
.nav{display:flex;gap:16px;flex-wrap:wrap}
.nav a{color:var(--muted);font-size:14px;position:relative;padding:6px 2px;transition:color .18s ease}
.nav a:hover{color:var(--text)}
.hero{padding:18px 0 10px}
.h1{font-size:34px;line-height:1.15;margin:0 0 10px;letter-spacing:-.3px}

.h2{font-size:22px;line-height:1.25;margin:18px 0 10px;letter-spacing:-.2px}
.sub{color:var(--muted);max-width:75ch;margin:0}
.grid{
  display:grid;grid-template-columns: 1.2fr .8fr;gap:18px;align-items:start;
}
@media (max-width: 900px){ .grid{grid-template-columns:1fr} .h1{font-size:30px}}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card .pad{padding:18px}
.tool{
  display:flex;flex-direction:column;gap:12px;
}
.label{font-size:13px;color:var(--muted);margin:0 0 6px}
.inputrow{display:flex;gap:10px;flex-wrap:wrap}
input[type="text"]{
  flex:1;min-width:260px;
  font-size:18px;
  padding:14px 14px;
  border:1px solid var(--line);
  border-radius:12px;
  outline:none;
}
input[type="text"]:focus{border-color:#c7d2fe;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
button{
  padding:14px 16px;
  font-size:16px;
  font-weight:600;
  border:1px solid #dbeafe;
  background:#eff6ff;
  color:#1d4ed8;
  border-radius:12px;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
button:hover{background:#dbeafe; box-shadow: 0 10px 22px rgba(37,99,235,.14)}
button:active{transform:translateY(1px) scale(.99)}
.pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{
  border:1px solid var(--line);
  background:var(--soft);
  color:var(--muted);
  padding:6px 10px;
  border-radius:999px;
  font-size:13px;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.pill:hover{color:var(--text); background:#eef2ff; border-color:#dbeafe; transform:translateY(-1px)}
.result{
  border-top:1px solid var(--line);
  padding-top:12px;
  display:none;
}
.result.show{display:block}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:999px;
  border:1px solid var(--line);
  background:#f9fafb;
  font-size:13px;
}
.badge b{font-weight:650}
.kv{margin:10px 0 0;padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width: 520px){.kv{grid-template-columns:1fr}}
.kv li{
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  background:#fff;
}
.kv .k{color:var(--muted);font-size:12px;margin-bottom:6px}
.kv .v{font-weight:650}
.notice{
  margin-top:12px;
  border:1px solid #fde68a;
  background:#fffbeb;
  border-radius:12px;
  padding:12px;
  color:#92400e;
  font-size:14px;
}
.sidecard h2{margin:0 0 10px;font-size:16px}
.sidecard p, .page p{color:var(--muted);margin:0 0 10px;line-height:1.55}
.sidecard ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.55}
.ad-block{margin:18px 0 0}
.ad-label{font-size:12px;color:var(--muted);margin:0 0 8px}
.ad-slot{
  width:100%;
  min-height:180px;
  border:1px dashed var(--line);
  border-radius:14px;
  background:linear-gradient(180deg,#ffffff,#f9fafb);
}
.footer{border-top:1px solid var(--line);margin-top:26px;padding:18px 0 40px}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
.fineprint{margin:10px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.page .h2{font-size:22px;margin:0 0 10px}
.page .card{box-shadow:none}
hr{border:none;border-top:1px solid var(--line);margin:14px 0}
form{display:grid;gap:10px}
textarea{
  width:100%;
  min-height:130px;
  padding:12px 14px;
  font-size:14px;
  border:1px solid var(--line);
  border-radius:12px;
  outline:none;
  resize:vertical;
}
textarea:focus{border-color:#c7d2fe;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.small{font-size:13px;color:var(--muted)}

/* v2 embellishments */
body{
  background:
    radial-gradient(1200px 600px at 60% -10%, rgba(37,99,235,.10), rgba(255,255,255,0) 60%),
    radial-gradient(900px 500px at 20% 0%, rgba(134,183,230,.16), rgba(255,255,255,0) 55%),
    linear-gradient(180deg, #ffffff 0%, #ffffff 35%, #fbfcfe 100%);
}
.brand{line-height:1}
.brand img{display:block}

.nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:2px;
  height:2px;
  background:rgba(37,99,235,.25);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
  border-radius:999px;
}
.nav a:hover::after{ transform:scaleX(1); }

.card{ transition: transform .14s ease, box-shadow .18s ease; }
.card:hover{ transform: translateY(-2px); box-shadow: 0 14px 36px rgba(17,24,39,.10); }

.btn-primary{ position:relative; overflow:hidden; }
.btn-primary::before{
  content:"";
  position:absolute;
  top:-40%; left:-60%;
  width:60%; height:180%;
  background:linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,.55), rgba(255,255,255,0));
  transform:rotate(18deg);
  transition:left .55s ease;
}
.btn-primary:hover::before{ left:120%; }