:root{color-scheme:dark;--bg: #07090c;--panel: #12161c;--line: #232a33;--text: #eef3f8;--muted: #93a0ae;--accent: #8b5cf6;--ok: #45d6a1;font-family:Inter,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}.wrap{max-width:960px;margin:0 auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:32px}.brand{letter-spacing:.16em;font-weight:800}nav{display:flex;gap:14px;flex-wrap:wrap}.hero h1{font-size:48px;margin:0 0 8px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:28px 0}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}.price{font-size:28px;font-weight:800;margin:8px 0 16px}button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 16px;font-weight:700;cursor:pointer;width:100%;text-align:center}button:disabled{opacity:.45;cursor:not-allowed}input{width:100%;background:#0b0f14;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:6px 0 12px}label{font-size:12px;color:var(--muted)}.notice{border:1px solid var(--ok);color:var(--ok);padding:16px;border-radius:12px}.warn{background:#2a1a12;border:1px solid #e0b43e;color:#e0b43e;padding:12px;border-radius:10px;margin-bottom:16px}footer{margin-top:40px;color:var(--muted);font-size:13px}@media (max-width: 640px){.hero h1{font-size:34px}header{flex-direction:column;align-items:flex-start}}