:root{--bg:#070b16;--card:#10192d;--ink:#f4f7ff;--muted:#a7b6d2;--gold:#ffd166}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui}main{width:min(720px,calc(100% - 28px));margin:0 auto;padding:28px 0 64px}h1{font-size:2rem;line-height:1.05}a{color:#55d9ff}.card{background:var(--card);border-radius:14px;padding:16px;margin:14px 0}label{display:block;margin:12px 0 4px;color:var(--muted)}input{width:100%;padding:10px;border-radius:8px;border:1px solid #334;background:#0b1425;color:#fff}button,a.btn{display:inline-block;background:var(--gold);color:#111;font-weight:800;padding:12px 16px;border-radius:10px;text-decoration:none;border:0}.muted{color:var(--muted)}