:root{--bg:#07110e;--panel:#0d1c17;--panel2:#11251e;--text:#eff8f3;--muted:#a9bdb3;--line:#244238;--accent:#39d98a;--accent2:#b8ffd9;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--accent2);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#fff}
.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:rgba(7,17,14,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;min-height:70px}.brand{font-weight:850;font-size:1.18rem;color:#fff;text-decoration:none;white-space:nowrap}.brand span{color:var(--accent)}
.nav nav{display:flex;gap:18px;margin-left:auto}.nav nav a{color:var(--muted);text-decoration:none;font-weight:650;font-size:.94rem}.nav nav a:hover{color:#fff}.search-link{border:1px solid var(--line);padding:7px 11px;border-radius:9px}
main{padding:42px 0 76px}h1,h2,h3{line-height:1.15;letter-spacing:-.025em}h1{font-size:clamp(2.25rem,5vw,4.25rem);max-width:900px;margin:.2em 0 .35em}h2{font-size:clamp(1.55rem,3vw,2.35rem);margin-top:2.1em}h3{font-size:1.2rem}p{max-width:820px}.lede{font-size:1.2rem;color:#c8d9d0;max-width:850px}.eyebrow{font-size:.78rem;letter-spacing:.14em;color:var(--accent);font-weight:800}
.hero{display:grid;grid-template-columns:1.45fr .75fr;gap:42px;align-items:center;padding:42px 0 58px}.hero-panel,.quick,.card,.trust-strip,.searchbox{background:linear-gradient(145deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:16px}
.hero-panel{padding:24px}.hero-panel ol{padding-left:22px;margin-bottom:0}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-block;border:1px solid var(--line);border-radius:10px;padding:10px 15px;text-decoration:none;color:#fff;background:transparent;font-weight:750;cursor:pointer}.btn.primary{background:var(--accent);color:#052014;border-color:var(--accent)}
.quick{padding:18px 20px;margin:26px 0 34px;border-left:4px solid var(--accent)}.quick strong{color:var(--accent2);text-transform:uppercase;letter-spacing:.08em;font-size:.75rem}.quick p{margin:.35em 0 0}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card{padding:20px;min-height:170px}.card h3{margin-top:0}.card h3 a{color:#fff}.card p{color:var(--muted);margin-bottom:18px}.read{color:var(--accent);font-weight:700;font-size:.9rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}.split>div{padding-right:20px}.text-link{font-weight:750}.section-intro{color:var(--muted)}
.trust-strip{margin-top:54px;padding:22px;display:flex;justify-content:space-between;gap:20px;align-items:center}.trust-strip p{margin:.3em 0;color:var(--muted)}
.ranking{display:grid;gap:8px}.ranking>div{display:grid;grid-template-columns:42px 180px 1fr;gap:12px;padding:11px 14px;background:var(--panel);border:1px solid var(--line);border-radius:10px}.ranking b{color:var(--accent)}.ranking small{color:var(--muted);font-size:.92rem}
.terms dt{font-weight:800;color:#fff;margin-top:14px}.terms dd{margin-left:0;color:var(--muted)}.formula{padding:18px 20px;border:1px dashed #4a7967;border-radius:12px;font:700 1.05rem ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--accent2);background:#0a1712}
.sources{margin-top:42px;padding-top:20px;border-top:1px solid var(--line)}.sources li{margin:.45em 0}.source-note{color:var(--muted);font-size:.9rem}
.breadcrumbs{color:var(--muted);font-size:.86rem;margin-bottom:20px}.breadcrumbs a{color:var(--muted)}
.searchbox{padding:22px;margin:28px 0}.searchbox label{display:block;font-weight:800;margin-bottom:8px}.searchbox div{display:flex;gap:8px}.searchbox input{flex:1;min-width:0;background:#06100d;border:1px solid var(--line);color:#fff;border-radius:10px;padding:12px 14px;font:inherit}
.result{padding:16px 0;border-bottom:1px solid var(--line)}.result h3{margin:.2em 0}.result p{color:var(--muted);margin:.2em 0}
footer{border-top:1px solid var(--line);padding:38px 0 50px;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links a{color:var(--muted)}.fine{font-size:.85rem;margin-top:28px}
@media(max-width:780px){.nav{flex-wrap:wrap;padding:12px 0}.nav nav{order:3;width:100%;overflow:auto;padding-bottom:2px;margin-left:0}.hero,.split,.footer-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.hero{padding-top:18px}.ranking>div{grid-template-columns:32px 1fr}.ranking small{grid-column:2}.trust-strip{align-items:flex-start;flex-direction:column}main{padding-top:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.compare{overflow-x:auto;margin:20px 0}.compare table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line)}.compare th,.compare td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.compare th{color:var(--accent2)}

.tool-panel{margin:28px 0 38px;padding:24px;background:linear-gradient(145deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:16px}.tool-panel h2{margin-top:0}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}.tool-field{display:flex;flex-direction:column;gap:6px;font-weight:700}.tool-field span{font-size:.9rem;color:#dceae3}.tool-field input,.tool-field select{width:100%;background:#06100d;border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 12px;font:inherit}.tool-wide{grid-column:1/-1}.tool-result{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:16px}.result-grid>div{background:#081610;border:1px solid var(--line);border-radius:12px;padding:14px}.result-grid strong{display:block;color:var(--accent2);font-size:1.25rem}.result-grid span{display:block;color:var(--muted);font-size:.82rem;margin-top:4px}.table-scroll{overflow-x:auto}.tool-table{width:100%;border-collapse:collapse}.tool-table th,.tool-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}.tool-table th{color:var(--accent2);font-size:.85rem}.tool-table .hero-row td{font-weight:800;background:#0b1e17}.tool-caution,.tool-callout{border-left:4px solid var(--accent);padding:12px 16px;background:var(--panel);border-radius:8px}.tool-callout{margin:28px 0}.tool-callout h2{margin-top:0;font-size:1.3rem}
@media(max-width:680px){.tool-grid{grid-template-columns:1fr}.tool-wide{grid-column:auto}.tool-panel{padding:18px}.result-grid{grid-template-columns:1fr 1fr}}


.evidence-note{margin:24px 0;padding:16px 18px;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;background:var(--panel)}.evidence-note p{margin:.35em 0 0;color:#d7e5de}.evidence-label{display:inline-block;font-size:.75rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase;color:var(--accent2)}.evidence-primary{border-left-color:#8fd3ff}.evidence-operator{border-left-color:#ffc979}.evidence-derived{border-left-color:#b8ffd9}.evidence-research{border-left-color:#d2b5ff}.evidence-study{border-left-color:#ffb5cf}.evidence-original{border-left-color:#39d98a}.evidence-chip{display:inline-block;padding:3px 8px;border-radius:999px;border:1px solid var(--line);font-size:.78rem;font-weight:800}.evidence-chip.primary{color:#8fd3ff}.evidence-chip.operator{color:#ffc979}.evidence-chip.derived{color:#b8ffd9}.evidence-chip.research{color:#d2b5ff}.evidence-chip.study{color:#ffb5cf}.evidence-chip.original{color:#39d98a}.evidence-chip.interpretation{color:#e6dfb0}