body { margin:0; font-family: Arial, sans-serif; background:#fff; display:flex; justify-content:center; align-items:center; height:100vh; }
.container { width:350px; padding:25px; border:1px solid #eee; border-radius:12px; text-align:center; box-shadow:0 5px 15px rgba(0,0,0,0.05); }
input, button { width:100%; padding:10px; margin:8px 0; border-radius:6px; border:1px solid #ddd; }
button { background:#e53935; color:#fff; border:none; font-weight:bold; cursor:pointer; transition:0.3s; }
button:hover { background:#d32f2f; }
a { color:#e53935; cursor:pointer; text-decoration:underline; }
header { display:flex; justify-content:space-between; padding:15px; border-bottom:1px solid #eee; background:#fff; }
.dashboard { padding:20px; text-align:center; }