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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    max-width: 600px;
    width: 100%;
}

h1 {
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-size: 28px;
}

h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 24px;
}

.view {
    text-align: center;
}

.view.hidden {
    display: none;
}

.btn {
    padding: 12px 30px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    margin-top: 20px;
}

.btn-primary {
    background-color: #667eea;
    color: white;
}

.btn-primary:hover {
    background-color: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background-color: #dc3545;
    color: white;
}

.btn-secondary:hover {
    background-color: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.4);
}

.user-info {
    text-align: left;
}

#user-details {
    background-color: #f8f9fa;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 20px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #e9ecef;
}

.detail-row:last-child {
    border-bottom: none;
}

.label {
    font-weight: 600;
    color: #495057;
}

.value {
    color: #667eea;
    word-break: break-all;
}

#login-view p,
#loading-view p {
    font-size: 18px;
    color: #6c757d;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .container {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    .detail-row {
        flex-direction: column;
        gap: 5px;
    }
}