/* Login Page Styles */

.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--surface-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.login-header {
    background: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 700;
}

.login-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.875rem;
}

.login-form {
    padding: 2rem;
}

.login-form .form-group {
    margin-bottom: 1.5rem;
}

.login-form .btn {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1rem;
}

.error-message {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    font-size: 0.875rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Loading Animation */
.login-form .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.login-form .btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        max-width: 100%;
    }
    
    .login-header,
    .login-form {
        padding: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.75rem;
    }
}