:root{--bg:#0f1720;--card:#0b1220;--accent:#2dd4bf;--muted:#9aa4b2;--text:#e6eef6}
*{box-sizing:border-box;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif}
html,body{height:100%}
body{margin:0;background:linear-gradient(180deg,#071025 0%,var(--bg) 100%);color:var(--text);display:flex;align-items:center;justify-content:center}
.container{width:100%;max-width:420px;padding:24px}
.card{background:rgba(255,255,255,0.03);padding:24px;border-radius:10px;box-shadow:0 6px 24px rgba(2,6,23,0.6)}
h1{margin:0 0 12px 0;font-size:20px}
label{display:block;margin-top:12px;font-size:13px;color:var(--muted)}
input{width:100%;padding:10px 12px;margin-top:6px;border-radius:6px;border:1px solid rgba(255,255,255,0.06);background:rgba(255,255,255,0.02);color:var(--text)}
button{margin-top:18px;width:100%;padding:10px;border-radius:8px;border:0;background:var(--accent);color:#022;cursor:pointer;font-weight:600}
.muted{margin-top:10px;color:var(--muted);font-size:13px}
#msg{margin-top:8px;color:var(--accent);font-weight:600}