:root{--bg:#0b1020;--panel:#111831;--panel2:#162042;--line:#24305a;--text:#e6ebf5;--muted:#93a0bd;--accent:#4ade80;--accent2:#38bdf8;--warn:#fbbf24;--radius:12px;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
header.site{border-bottom:1px solid var(--line);background:rgba(11,16,32,.92);position:sticky;top:0;z-index:5;backdrop-filter:blur(6px)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:19px;letter-spacing:-.01em}.brand:hover{text-decoration:none}
.brand small{font:500 11px var(--mono);color:var(--muted);border:1px solid var(--line);padding:2px 6px;border-radius:6px;margin-left:4px}
nav.main a{color:var(--muted);margin-left:22px;font-size:14.5px}nav.main a:hover{color:var(--text);text-decoration:none}
nav.main a.cta{color:#06210f;background:var(--accent);padding:7px 14px;border-radius:8px;font-weight:600}
.hero{padding:64px 0 36px;background:radial-gradient(900px 300px at 20% -10%,rgba(56,189,248,.14),transparent),radial-gradient(700px 260px at 90% 0,rgba(74,222,128,.10),transparent)}
.eyebrow{font:600 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
h1{font-size:44px;line-height:1.1;letter-spacing:-.025em;margin:12px 0 14px;max-width:820px}
h2{font-size:24px;letter-spacing:-.01em;margin:40px 0 14px}h3{margin:0 0 6px;font-size:17px}
.lede{color:var(--muted);font-size:18px;max-width:720px}
.search{margin-top:26px;display:flex;gap:10px;max-width:720px}
.search input{flex:1;background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:14px 16px;font-size:16px;outline:none}
.search input:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.stats{display:flex;gap:28px;margin-top:22px;color:var(--muted);font:13px var(--mono)}.stats b{color:var(--text);font-size:15px}
.grid{display:grid;gap:16px}.cats{grid-template-columns:repeat(3,1fr)}.tools{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.cats,.tools{grid-template-columns:repeat(2,1fr)}h1{font-size:34px}}@media(max-width:600px){.cats,.tools{grid-template-columns:1fr}nav.main a:not(.cta){display:none}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:block;color:var(--text);transition:border-color .15s,transform .15s}
a.card:hover{border-color:#3b4b85;text-decoration:none;transform:translateY(-1px)}
.card p{color:var(--muted);margin:6px 0 0;font-size:14.5px}
.cat-card .count{font:12px var(--mono);color:var(--accent)}
.icon{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--panel2);border:1px solid var(--line);margin-bottom:12px;color:var(--accent2)}
.tool-card .top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.tag{display:inline-block;font:500 11.5px var(--mono);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 8px;margin:10px 6px 0 0}
.tag.oss{color:var(--accent);border-color:rgba(74,222,128,.35)}.tag.acq{color:var(--warn);border-color:rgba(251,191,36,.35)}
.badge-slot{font:500 11px var(--mono);color:#6b7799;border:1px dashed #33406b;border-radius:6px;padding:2px 7px;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}.chip{background:var(--panel);border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 12px;font-size:13.5px;cursor:pointer}
.chip.on{color:#06210f;background:var(--accent);border-color:var(--accent)}
.crumbs{font:13px var(--mono);color:var(--muted);margin:28px 0 0}.crumbs a{color:var(--muted)}
.page{padding:8px 0 40px}
.tool-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-top:16px}
.btn{display:inline-block;background:var(--accent);color:#06210f;font-weight:600;padding:10px 16px;border-radius:9px}.btn:hover{text-decoration:none;filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.two{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin-top:22px}@media(max-width:900px){.two{grid-template-columns:1fr}}
table.facts{width:100%;border-collapse:collapse;font-size:15px}table.facts th{text-align:left;color:var(--muted);font-weight:500;width:200px;vertical-align:top}
table.facts th,table.facts td{padding:11px 0;border-bottom:1px solid var(--line)}td.blank{color:#6b7799;font-style:italic}
.lab{border:1px dashed #3a4a80;background:linear-gradient(180deg,var(--panel),var(--panel2))}
.lab .seal{width:56px;height:56px;border-radius:50%;border:2px dashed #3a4a80;display:grid;place-items:center;color:#6b7799;margin-bottom:10px}
.newsletter{margin:56px 0 0;background:linear-gradient(120deg,#0f1a3a,#11243a);border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.newsletter form{display:flex;gap:10px}.newsletter input{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:11px 14px;min-width:260px}
.newsletter button{background:var(--accent);border:0;border-radius:9px;padding:11px 16px;font-weight:600;color:#06210f}.newsletter button[disabled]{opacity:.6;cursor:not-allowed}
.note{font:12px var(--mono);color:#6b7799;margin-top:8px}
.prose{max-width:780px}.prose p,.prose li{color:#c9d2e6}.prose h2{margin-top:34px}
.callout{border-left:3px solid var(--accent);background:var(--panel);padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0}
footer.site{border-top:1px solid var(--line);margin-top:64px;padding:28px 0;color:var(--muted);font-size:14px}footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.empty{color:var(--muted);padding:20px 0}[hidden]{display:none!important}
/* utility classes (no inline styles; CSP style-src 'self') */
.h2-tight{margin:6px 0 4px}.muted-max{color:var(--muted);margin:0;max-width:520px}.mt10{margin-top:10px}.mt16{margin-top:16px}.mt20{margin-top:20px}
.cat-head{display:flex;gap:14px;align-items:center;margin-top:18px}.h1-cat{font-size:36px;margin:0 0 10px}.h1-page{font-size:38px}.h1-tool{font-size:38px;margin-bottom:8px}.lede-tight{margin:0}.nowrap{white-space:nowrap}
.cols3{grid-template-columns:repeat(3,1fr)}@media(max-width:900px){.cols3{grid-template-columns:1fr}}
.disclosure{font-size:12.5px;color:#7c88a8;max-width:760px;margin-top:6px}
@media(max-width:600px){header.site .wrap{height:auto;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;gap:8px}nav.main{display:flex;flex-wrap:wrap;gap:12px}nav.main a{margin-left:0}nav.main a:not(.cta){display:inline}.tool-head{flex-direction:column}.newsletter form{flex-direction:column}.newsletter input{min-width:0;width:100%}h1{font-size:30px}.stats{flex-wrap:wrap;gap:12px}table.facts th{width:120px}}