:root{color-scheme:dark;--bg:#0c1520;--panel:#122130;--panel-2:#1a3044;--text:#eef5fb;--muted:#a9bbc9;--line:#274255;--leaf:#4dd0b3;--mint:#8ef0dd;--gold:#f2bf4a;--water:#5ba5ff}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}.shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:rgba(17,19,26,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.header-inner{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand,.footer-links,.inline-list,.nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.brand{font-weight:800;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--water),var(--gold));color:#08131e;font-size:13px}.nav a,.pill{border:1px solid transparent;border-radius:8px;padding:8px 10px;color:var(--muted);font-size:14px}.nav a:hover,.pill{border-color:var(--line);color:var(--text);background:hsla(0,0%,100%,.04)}.hero{position:relative;min-height:clamp(560px,82vh,760px);display:flex;align-items:center;overflow:hidden;border-bottom:1px solid var(--line)}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,21,32,.96),rgba(12,21,32,.76),rgba(12,21,32,.24)),url(/hero-bg.svg) 50% /cover no-repeat}.hero-content{position:relative;max-width:680px;padding:72px 0}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(42px,8vw,78px);line-height:.95;margin-bottom:18px}h2{font-size:clamp(26px,4vw,42px);line-height:1.05}h3{font-size:19px}p{color:var(--muted);line-height:1.7}.lead{font-size:19px;max-width:620px}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:8px;padding:0 16px;font-weight:800;border:1px solid var(--line);background:var(--panel)}.button.primary{background:var(--leaf);color:#0c1710;border-color:var(--leaf)}.section{padding:72px 0}.section.alt{background:#101b28;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:16px;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{border:1px solid var(--line);border-radius:8px;padding:20px;background:var(--panel)}.card strong,.stat{color:var(--text)}.badge{display:inline-flex;align-items:center;border:1px solid rgba(102,196,106,.55);border-radius:999px;padding:5px 9px;color:var(--mint);font-size:12px;font-weight:800;text-transform:uppercase}.table{width:100%;border-collapse:collapse;overflow:hidden;border:1px solid var(--line);border-radius:8px}.table td,.table th{padding:14px;border-bottom:1px solid var(--line);text-align:left}.table th{color:var(--text);background:var(--panel-2)}.code{font-family:Courier New,monospace;color:var(--gold);font-weight:800}.calc-form{display:grid;grid-gap:14px;gap:14px}.field{display:grid;grid-gap:7px;gap:7px}input,select{width:100%;min-height:42px;border:1px solid var(--line);border-radius:8px;padding:9px 11px;background:#0f1a25;color:var(--text)}.result-box{border:1px solid rgba(242,200,75,.45);background:rgba(242,200,75,.08);border-radius:8px;padding:18px}.site-footer{border-top:1px solid var(--line);padding:34px 0;background:#0a121b}.footer-grid{display:flex;justify-content:space-between;gap:20px;align-items:center}@media (max-width:760px){.footer-grid,.header-inner{align-items:flex-start;flex-direction:column}.grid,.grid.two{grid-template-columns:1fr}.hero{min-height:680px}}