:root{color-scheme:dark;font-family:Inter,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 50% 10%,#24365b,#090d18 52%);color:#edf2ff;padding:20px}main{width:min(100%,360px);background:#111827e8;border:1px solid #2a3958;border-radius:22px;padding:28px;box-shadow:0 24px 80px #0008}.mark{width:48px;height:48px;border-radius:15px;background:#6ce5bd;color:#06130e;display:grid;place-items:center;font-weight:900}h1{margin:18px 0 5px;font-size:1.6rem}p{margin:0 0 22px;color:#8f9bb0}.error{color:#ff9ca4;background:#3a171d;border-radius:9px;padding:9px}form,label{display:grid;gap:8px}input,button{font:inherit;border-radius:10px;padding:12px;border:1px solid #34415d}input{background:#090e19;color:#fff;margin-bottom:8px}button{background:#6ce5bd;color:#06130e;font-weight:800;cursor:pointer}