:root {
            --primary-color: #ff6b35;
            --primary-dark: #e55a2b;
            --secondary-color: #0f172a;
            --accent-color: #f39c12;
        }
        
        * {
            font-family: 'Poppins', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #2c3e50 0%, #000000 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .login-card {
            background: white;
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            overflow: hidden;
            max-width: 1000px;
            width: 95%;
            margin: 20px;
        }
        
        .login-form-section {
            padding: 50px;
        }
        
        .login-image-section {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 50px;
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .login-image-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: url('https://www.transparenttextures.com/patterns/food.png');
            opacity: 0.1;
        }
        
        .btn-premium {
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px rgba(255,107,53,0.2);
        }
        
        .btn-premium:hover {
            background: var(--primary-dark);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(255,107,53,0.3);
        }
        
        .form-control {
            border-radius: 12px;
            padding: 12px 15px;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
        }

        .input-group-text {
            border-radius: 12px;
            border: 1px solid #e2e8f0;
        }
        
        .logo-os {
            background: var(--primary-color);
            color: white;
            width: 45px;
            height: 45px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.4rem;
        }
        
        .brand-text {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }

        .link-custom {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }

        .link-custom:hover {
            text-decoration: underline;
        }

        @media (max-width: 991px) {
            .login-form-section {
                padding: 40px 25px;
            }
        }