body {
            background: <?= $branding['background_login_url'] ? "url('{$branding['background_login_url']}')" : '#ffffff' ?>;
            background-size: cover;
            background-position: center;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Roboto', sans-serif;
            padding: 20px;
            margin: 0;
        }
        
        .login-container {
            width: 100%;
            max-width: 400px;
        }
        
        .card {
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin: 0;
        }
        
        .logo-section {
            padding: 2rem 2rem 1rem 2rem;
            text-align: center;
            background: white;
        }
        
        .brand-logo {
            max-width: 200px;
            max-height: 80px;
            width: auto;
            height: auto;
        }
        
        .login-content {
            padding: 0 2rem 2rem 2rem;
            background: white;
        }
        
        .login-title {
            font-size: 1.5rem;
            font-weight: 500;
            color: #333;
            text-align: center;
            margin: 0 0 1.5rem 0;
        }
        
        .input-field label {
            color: #666;
        }
        
        .input-field .prefix {
            color: #d32f2f;
        }
        
        .input-field input:focus + label {
            color: #d32f2f !important;
        }
        
        .input-field input:focus {
            border-bottom: 2px solid #d32f2f !important;
            box-shadow: 0 1px 0 0 #d32f2f !important;
        }
        
        .btn-login {
            background-color: #d32f2f;
            width: 100%;
            margin: 1rem 0;
        }
        
        .btn-login:hover {
            background-color: #b71c1c;
        }
        
        .login-links {
            display: flex;
            justify-content: space-between;
            margin-top: 1rem;
        }
        
        .link-item {
            color: #d32f2f;
            font-size: 0.9rem;
        }
        
        .alert-error {
            background: #ffebee;
            color: #d32f2f;
            padding: 1rem;
            border-radius: 4px;
            margin-bottom: 1rem;
            font-size: 0.9rem;
        }
        
        .copyright {
            text-align: center;
            margin-top: 2rem;
            color: #666;
            font-size: 0.8rem;
        }