* { box-sizing: border-box; }
body { font-family: 'Segoe UI', Roboto, sans-serif; background-color: #e9ecef; margin: 0; padding: 15px; }
.container { max-width: 450px; background: white; padding: 25px; border-radius: 15px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin: auto; }
.header { text-align: center; margin-bottom: 25px; }
.header h1 { color: #0056b3; margin: 0; font-size: 24px; }
.header p { color: #666; margin: 5px 0; font-size: 14px; }

.user-info { display: flex; justify-content: space-between; align-items: center; background: #f8f9fa; padding: 10px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.user-info a { color: #d9534f; text-decoration: none; font-weight: bold; }

label { display: block; margin-top: 15px; font-weight: 600; color: #333; font-size: 14px; }
input, textarea { width: 100%; padding: 12px; margin-top: 5px; border: 1px solid #ced4da; border-radius: 8px; font-size: 16px; background-color: #fff; }
input:focus { border-color: #80bdff; outline: none; box-shadow: 0 0 5px rgba(0,123,255,0.25); }

.row { display: flex; gap: 10px; }
.col { flex: 1; }

button { width: 100%; padding: 15px; background-color: #007bff; color: white; border: none; border-radius: 8px; margin-top: 25px; font-size: 18px; font-weight: bold; cursor: pointer; transition: 0.3s; }
button:hover { background-color: #0056b3; }

.alert { padding: 15px; border-radius: 8px; text-align: center; margin-bottom: 20px; font-weight: bold; }
.success { background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.error { background-color: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }