:root{--bg:#0b0d11;--bg-soft:#14171d;--fg:#f4f5f7;--fg-muted:#98a0ad;--accent:#6ea7ff;--accent-soft:rgba(110,167,255,.16);--border:hsla(0,0%,100%,.08);--max:1080px;--radius:14px}@media (prefers-color-scheme:light){:root{--bg:#fafbfc;--bg-soft:#fff;--fg:#15181d;--fg-muted:#5b6473;--accent:#2563eb;--accent-soft:rgba(37,99,235,.1);--border:rgba(0,0,0,.08)}}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.55}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--max);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .1s ease,background .2s ease}.btn:hover{text-decoration:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--fg);border-color:var(--border)}.card{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:28px}h1,h2,h3{margin:0;letter-spacing:-.01em}h1{font-size:clamp(36px,6vw,64px);line-height:1.05}h2{font-size:clamp(28px,4vw,40px);line-height:1.1}h3{font-size:18px}.muted{color:var(--fg-muted)}