* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f172a;
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; color: #e2e8f0;
}
.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 40px;
  width: 100%; max-width: 400px;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}
.logo { text-align:center; margin-bottom:24px; }
.logo h1 { font-size:24px; font-weight:700; color:#f8fafc; }
.logo .env {
  display:inline-block; background:#b45309; color:white;
  font-size:11px; font-weight:600; padding:2px 8px;
  border-radius:4px; margin-top:4px; letter-spacing:1px;
}
form { display:flex; flex-direction:column; gap:16px; }
label { font-size:13px; font-weight:500; color:#94a3b8; text-transform:uppercase; letter-spacing:0.5px; }
input[type="text"], input[type="password"] {
  width:100%; padding:10px 14px; background:#0f172a;
  border:1px solid #475569; border-radius:6px; color:#f8fafc;
  font-size:15px; outline:none; transition: border-color 0.2s;
}
input:focus { border-color:#d97706; }
button {
  padding:12px; background:#b45309; color:white; border:none;
  border-radius:6px; font-size:15px; font-weight:600;
  cursor:pointer; transition: background 0.2s;
}
button:hover { background:#d97706; }
.error { background:#7f1d1d; border:1px solid #ef4444; border-radius:6px; padding:10px 14px; font-size:14px; color:#fca5a5; }
.footer { text-align:center; margin-top:20px; font-size:12px; color:#64748b; }