body { font-family: sans-serif; background: #f4f4f4; display: flex; justify-content: center; align-items: center; min-height: 100vh; margin: 0; }
.container { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); width: 100%; max-width: 400px; }
.form-group { margin-bottom: 1rem; }
label { display: block; margin-bottom: .5rem; font-weight: bold; }
input { width: 100%; padding: 0.5rem; box-sizing: border-box; border: 1px solid #ddd; border-radius: 4px; }
button { width: 100%; padding: 0.75rem; background: #28a745; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 1rem; }
button:hover { background: #218838; }
button:disabled { background: #ccc; }
#message { margin-top: 1rem; text-align: center; }
.success { color: green; background: #d4edda; padding: 10px; border-radius: 4px; }
.error { color: red; background: #f8d7da; padding: 10px; border-radius: 4px; }
/* Admin Styles */
.admin-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.admin-table th, .admin-table td { border: 1px solid #ddd; padding: 8px; text-align: left; }
.btn-delete { background: #dc3545; padding: 5px 10px; font-size: 0.8rem; }