* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.form-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    margin: 0 auto;
}

.form-container h2, h3, h4 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s;
}

button:hover {
    transform: translateY(-2px);
}

.switch-form {
    text-align: center;
    margin-top: 20px;
    color: #666;
}

.switch-form a {
    color: #667eea;
    text-decoration: none;
}

.switch-form a:hover {
    text-decoration: underline;
}

.dashboard {
    background: white;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.dashboard-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-header h2 {
    margin: 0;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    font-size: 14px;
    width: auto;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.dashboard-content {
    padding: 20px;
}

.card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid #e9ecef;
}

.card h3 {
    color: #333;
    margin-bottom: 15px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.card p {
    margin-bottom: 10px;
    color: #666;
}

.admin-section {
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.admin-section h4 {
    color: #333;
    margin-bottom: 15px;
}

.refresh-btn {
    background: #28a745;
    margin-bottom: 15px;
    width: auto;
    padding: 8px 16px;
    font-size: 14px;
}

.user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 5px;
    margin-bottom: 10px;
    border: 1px solid #e9ecef;
}

.user-info {
    flex: 1;
}

.user-info strong {
    color: #333;
}

.delete-btn {
    background: #dc3545;
    width: auto;
    padding: 5px 10px;
    font-size: 12px;
    margin-left: 10px;
}

.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 5px;
    color: white;
    font-weight: 500;
    z-index: 1000;
    display: none;
    max-width: 400px;
}

.message.success {
    background: #28a745;
}

.message.error {
    background: #dc3545;
}

.message.info {
    background: #17a2b8;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
    
    .form-container {
        padding: 20px;
    }
    
    .dashboard-header {
        flex-direction: column;
        text-align: center;
    }
    
    .dashboard-header h2 {
        margin-bottom: 10px;
    }
    
    .user-item {
        flex-direction: column;
        text-align: center;
    }
    
    .delete-btn {
        margin-left: 0;
        margin-top: 10px;
    }
}