:root{--bg:#0a0a0b;--bg2:#131314;--card:#161618;--line:#2d2d30;--text:#e5e2e3;--muted:#849495;--accent:#00dbe9;--on:#00363a}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,sans-serif;line-height:1.5}
a{color:inherit;text-decoration:none}
nav{position:sticky;top:0;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);background:rgba(10,10,11,.9);backdrop-filter:blur(16px);z-index:2}
.mark{font-family:ui-monospace,Menlo,monospace;font-weight:700;font-size:12px;letter-spacing:.1em;border:1px solid rgba(0,219,233,.5);padding:3px 7px;border-radius:3px;color:var(--accent)}
.brand{font-weight:800;letter-spacing:-.02em;margin-left:8px}
.brand span{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 18px;border-radius:6px;background:var(--accent);color:var(--on);font-family:ui-monospace,Menlo,monospace;font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;border:0;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.hero{min-height:64vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 20px}
.kicker{font-family:ui-monospace,Menlo,monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);background:var(--card);padding:8px 12px;border-radius:4px;margin-bottom:24px}
h1{font-size:clamp(2rem,7vw,4rem);line-height:1.05;letter-spacing:-.03em;margin:0 0 16px;max-width:900px}
h1 em{font-style:normal;color:var(--accent)}
.sub{max-width:620px;color:var(--muted);font-size:17px;margin:0 0 28px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:center}
.price{border:1px solid var(--line);background:var(--card);padding:12px 16px;border-radius:6px;font-family:ui-monospace,Menlo,monospace}
.price small{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:11px;margin-right:8px}
section{max-width:960px;margin:0 auto;padding:48px 20px}
h2{font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.02em;margin:0 0 20px}
h2 span{color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.card{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:18px}
.card h3{margin:0 0 8px;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .amt{font-family:ui-monospace,Menlo,monospace;color:var(--accent);font-weight:700;margin:0 0 10px}
details{border:1px solid var(--line);background:var(--card);border-radius:8px;margin:0 0 8px;padding:4px 14px}
summary{min-height:44px;display:flex;align-items:center;cursor:pointer;font-weight:600}
details p{color:var(--muted);font-size:14px;margin:0 0 12px}
.cta{text-align:center;padding:56px 20px;border-top:1px solid var(--line);background:var(--bg2)}
footer{padding:28px 20px;border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:13px;font-family:ui-monospace,Menlo,monospace;letter-spacing:.06em;text-transform:uppercase}
footer a{color:var(--text)}
.mail{font-family:ui-monospace,Menlo,monospace;font-size:14px;color:var(--accent);user-select:all}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.tier{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:22px;display:flex;flex-direction:column;gap:10px}
.tier h3{margin:0;font-size:18px}
.tier .amt{font-family:ui-monospace,Menlo,monospace;font-size:22px;color:var(--accent);font-weight:700}
.tier p{margin:0;color:var(--muted);font-size:14px;flex:1}
.tier ul{margin:0;padding:0 0 0 18px;color:var(--muted);font-size:14px}
.note{color:var(--muted);font-size:14px;max-width:620px}
.example{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:22px;text-align:left}
.example h3{margin:0 0 10px;font-size:16px}
.example p{margin:0 0 12px;color:var(--muted);font-size:14px}
.pair{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.pair .col{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:16px}
.pair .col h4{margin:0 0 8px;font-size:13px;font-family:ui-monospace,Menlo,monospace;letter-spacing:.08em;text-transform:uppercase}
.pair .col p,.pair .col pre{margin:0;color:var(--muted);font-size:14px;line-height:1.45}
.pair .bad h4{color:#f07178}
.pair .good h4{color:var(--accent)}
.sample{font-family:ui-monospace,Menlo,monospace;font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:14px;overflow:auto;color:var(--text);white-space:pre-wrap;line-height:1.5}
.score{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px;margin-top:12px}
.score span{display:block;border:1px solid var(--line);border-radius:6px;padding:10px;font-size:13px;color:var(--muted)}
.score b{display:block;color:var(--text);font-size:15px;margin-top:4px}
.related{max-width:960px;margin:0 auto;padding:36px 20px 48px;border-top:1px solid var(--line)}
.related h2{font-size:1.1rem;margin:0 0 16px}
.related .row{justify-content:flex-start}