:root{
  color-scheme:dark;
  --bg:#0b0f14;--panel:#111821;--panel2:#151e29;--text:#e8edf2;
  --muted:#91a0af;--border:#263241;--accent:#64b5f6;--accent2:#9ad1ff;
  --good:#6bd39a;--bad:#ff8b8b;--radius:16px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;min-height:100vh;color:var(--text);
  background:
    radial-gradient(circle at 15% 0%,rgba(100,181,246,.11),transparent 34%),
    radial-gradient(circle at 85% 10%,rgba(154,209,255,.06),transparent 28%),
    var(--bg);
  font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif
}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(11,15,20,.82);border-bottom:1px solid rgba(38,50,65,.7)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:760;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{width:30px;height:30px;border:1px solid var(--border);border-radius:9px;background:linear-gradient(145deg,#172130,#0e141d);display:grid;place-items:center;color:var(--accent)}
.nav-links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.nav-links a{color:var(--muted);font-size:14px}
.nav-links a[aria-current="page"]{color:var(--text)}
.hero{padding:88px 0 54px}
.eyebrow{display:inline-flex;margin-bottom:16px;color:var(--accent2);font-size:13px;text-transform:uppercase;letter-spacing:.12em}
.hero h1{margin:0;max-width:850px;font-size:clamp(38px,7vw,70px);line-height:1.04;letter-spacing:-.04em}
.hero p{max-width:780px;margin:24px 0 0;color:var(--muted);font-size:clamp(17px,2.2vw,21px)}
.hero-actions,.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.hero-actions{margin-top:30px}
.button{appearance:none;border:1px solid var(--border);border-radius:11px;padding:11px 16px;background:var(--panel2);color:var(--text);cursor:pointer;font:inherit;font-weight:650}
.button:hover{border-color:#3b4e64;background:#192431;text-decoration:none}
.button.primary{background:var(--accent);color:#07111a;border-color:transparent}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{border:1px solid var(--border);background:linear-gradient(180deg,rgba(21,30,41,.95),rgba(17,24,33,.95));border-radius:var(--radius);padding:22px}
.card h1,.card h2,.card h3{margin-top:0}.card p{color:var(--muted)}
.tool-card{display:block;color:var(--text);min-height:175px}.tool-card:hover{text-decoration:none;border-color:#38506a}
.tool-card .tag{display:inline-block;margin-top:18px;color:var(--accent2);font-size:13px}
.section{padding:32px 0 56px}.section-title{margin:0 0 20px;font-size:28px}
.tool-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:20px;align-items:start}
.tool-nav{position:sticky;top:88px}.tool-nav a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted)}
.tool-nav a:hover{background:var(--panel);color:var(--text);text-decoration:none}
.tool-section{margin-bottom:18px;scroll-margin-top:90px}
label{display:block;margin:0 0 8px;color:var(--muted);font-size:14px}
input,textarea{width:100%;border:1px solid var(--border);background:#0d131b;color:var(--text);border-radius:10px;padding:11px 12px;font:inherit;outline:none}
textarea{min-height:150px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px}
input:focus,textarea:focus{border-color:#4d7398;box-shadow:0 0 0 3px rgba(100,181,246,.09)}
.row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.result{margin-top:12px;padding:12px 14px;border:1px solid var(--border);background:#0d131b;border-radius:10px;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px}
.status{margin-top:10px;color:var(--muted);min-height:24px}.status.good{color:var(--good)}.status.bad{color:var(--bad)}
.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;margin-top:12px}th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}th{color:var(--muted)}
.notice{border-left:3px solid var(--accent);padding:10px 14px;background:rgba(100,181,246,.06);color:var(--muted);border-radius:0 10px 10px 0}
.footer{border-top:1px solid var(--border);margin-top:40px;padding:28px 0 46px;color:var(--muted);font-size:14px}
.footer-inner{display:flex;flex-wrap:wrap;gap:14px 24px;justify-content:space-between}
@media(max-width:860px){.grid{grid-template-columns:1fr 1fr}.tool-layout{grid-template-columns:1fr}.tool-nav{position:static}}
@media(max-width:620px){.wrap{width:min(100% - 22px,1120px)}.nav{align-items:flex-start;padding:14px 0}.nav-links{justify-content:flex-end}.grid,.row{grid-template-columns:1fr}.hero{padding-top:58px}}