:root{--bg:#0b1020;--bg-elev:#121831;--surface:#fff;--text:#1a2233;--text-muted:#5b6678;--text-invert:#eef2ff;--primary:#5b5bf0;--primary-dark:#3f3fd1;--accent:#f5a623;--border:#e3e8f0;--radius:12px;--maxw:1080px;--shadow:0 6px 24px rgba(20,28,60,.1)}*{box-sizing:border-box}body,html{margin:0;padding:0;color:var(--text);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;background:rgba(11,16,32,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--text-invert);border-bottom:1px solid hsla(0,0%,100%,.08)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:700;font-size:1.15rem;color:var(--text-invert);letter-spacing:.3px}.brand span{color:var(--accent)}.nav a{color:var(--text-invert);margin-left:24px;font-size:.95rem;opacity:.85}.nav a:hover{opacity:1;text-decoration:none}.hero{background:radial-gradient(1200px 400px at 70% -10%,rgba(91,91,240,.45),transparent),linear-gradient(180deg,var(--bg),var(--bg-elev));color:var(--text-invert);padding:88px 0 96px}.hero h1{font-size:2.8rem;line-height:1.1;margin:0 0 16px}.hero p.lead{font-size:1.25rem;color:#c2cbe8;max-width:720px;margin:0 0 32px}.eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:.8rem;color:var(--accent);font-weight:700}.btn{display:inline-block;cursor:pointer;border:none;padding:13px 24px;border-radius:var(--radius);font-size:1rem;font-weight:600;transition:transform .05s ease,background .2s ease}.btn:hover{text-decoration:none}.btn:active{transform:translateY(1px)}.btn-primary{background:#14161a;color:#fff}.btn-primary:hover{background:#000;color:#fff}.btn-ghost{background:#fff;color:var(--accent);border:1px solid var(--accent);margin-left:12px}.btn-ghost:hover{background:var(--accent);color:#fff}.btn-block{display:block;width:100%;text-align:center}.btn:disabled{opacity:.6;cursor:not-allowed}.section{padding:72px 0}.section h2{font-size:2rem;margin:0 0 8px}.section .sub{color:var(--text-muted);margin:0 0 40px;font-size:1.1rem}.grid{display:grid;grid-gap:24px;gap:24px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;font-size:1.15rem}.card p{margin:0;color:var(--text-muted)}.form-card{max-width:520px;margin:0 auto}.field{margin-bottom:16px}.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.92rem}.field input{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:1rem;background:#fff}.field input:focus{outline:2px solid var(--primary);border-color:transparent}.code-input{letter-spacing:8px;text-align:center;font-size:1.5rem;font-weight:700}.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:.95rem}.alert-error{background:#fdecec;color:#a3271f;border:1px solid #f6c8c4}.alert-info{background:#eef1fe;color:#33359c;border:1px solid #cfd5fb}.alert-success{background:#e9f8ef;color:#1f7a45;border:1px solid #c2e9d2}.cred{background:var(--bg-elev);color:var(--text-invert);border-radius:var(--radius);padding:20px;margin:12px 0}.cred label{font-size:.8rem;text-transform:uppercase;letter-spacing:1px;color:#aab4d8}.cred code{display:block;word-break:break-all;font-size:.95rem;margin-top:4px}.site-footer{background:var(--bg);color:#aab4d8;padding:40px 0;margin-top:40px;font-size:.9rem}.site-footer a{color:#c2cbe8}.center{text-align:center}.muted{color:var(--text-muted)}.pill{display:inline-block;background:rgba(245,166,35,.15);color:var(--accent);padding:4px 12px;border-radius:999px;font-size:.85rem;font-weight:600}@media (max-width:860px){.grid-2,.grid-3{grid-template-columns:1fr}.hero h1{font-size:2.1rem}.nav a{margin-left:14px}}