.main-content {
          margin-top: clamp(6.5rem, 10vw, 9rem);
          padding: 0 1rem;
        }
 .select-class-content {
            width: min(1180px, 100%);
            max-width: 100%;
            margin: auto;
            padding: 2rem 1rem;
            box-sizing: border-box;
            text-align: center;
            background: var(--white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            margin-bottom: 3rem;
            transition: all var(--transition-normal);
            border: 1px solid rgba(44, 62, 80, 0.06);
            position: relative;
            overflow: hidden;

        }
        
        .select-class-content h1 {
            color: var(--primary-color);
            margin-bottom: 2rem;
            font-size: clamp(1.85rem, 5vw, 2.5rem);
            font-weight: 700;
            text-align: center;
            position: relative;
            z-index: 1;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
           
            box-shadow: 0 4px 15px rgba(79, 110, 247, 0.3);
            border-radius: 10%;
        }
        
        .classes-container {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: 0 4px 20px rgba(44, 62, 80, 0.08);
            margin-bottom: 2rem;
            border: 1px solid rgba(44, 62, 80, 0.06);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 15px rgba(79, 110, 247, 0.2);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            margin-bottom: 2rem;
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        
        .classes-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
        }
        
        .classes-container h2 {
            color: black;
          
         
        }
        
        .classes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }
        
        .class-box {
            background: linear-gradient(135deg, var(--success-color), #2ecc71);
            color: white;
            padding: 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            font-size: 1.25rem;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 120px;
        }

        .class-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(39, 174, 96, 0.4);
            filter: brightness(1.1);
        }
        
        
        /* Description Section Styling */
        .description-section {
            margin-bottom: 3rem;
        }
        
        .info-banner {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--secondary-light) 100%);
            color: white;
            padding: 2.5rem;
            border-radius: var(--radius-xl);
            margin-bottom: 2rem;
            text-align: left;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(44, 62, 80, 0.15);

        }
        
        .info-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        
        .info-banner h2 {
            color: white;
            margin-bottom: 1rem;
            text-align: center;
        }
        
        .info-banner p {
            color: rgba(255,255,255,0.9);
            margin-bottom: 2rem;
            text-align: center;
            font-size: 1.1rem;
        }
        
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem auto 0;
            max-width: 1000px;
            align-items: start; /* keep cards aligned at top */
            padding: 0 2rem;
            grid-auto-rows: minmax(120px, auto);
            width: 100%;
        }

        /* Ensure 4-column layout on larger screens */
        @media (min-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
                padding: 0 1rem;
            }
        }

        .step {
            background: rgba(255,255,255,0.04);
            padding: 1.25rem;
            border-radius: 10px;
            text-align: center;
            width: 100%;
            margin: 0 auto;
            border: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 6px 18px rgba(4,11,30,0.18);
            transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
        }

        .step:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(4,11,30,0.22);
            background: rgba(255,255,255,0.06);
        }
        
        .step-number {
            background: white;
            color: #4f6ef7;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
            margin: 0 auto 1rem auto;
            box-shadow: 0 4px 12px rgba(79,110,247,0.18);
        }
        
        .step h3 {
            color: white;
            margin-bottom: 0.5rem;
            font-size: 1.15rem;
            font-weight: 700;
        }
        
        .step p {
            color: rgba(255,255,255,0.8);
            font-size: 0.9rem;
            margin: 0;
        }
        
        .features-highlight {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            text-align: left;
        }
        
        .features-highlight h3 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            text-align: center;
        }
        
        .features-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(40%, 1fr));
            gap: 1rem;
        }
        
        .feature-item {
            display: flex;
            align-items: flex-start;
            padding: 1rem;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid #4f6ef7;
            
        }
        
        .feature-item strong {
            color: var(--primary-color);
        }

        .page-back-link {
            align-items: center;
            justify-content: center;
            text-decoration: none;
        }
        
        /* Mobile responsiveness for description */
        @media (max-width: 768px) {
            .select-class-content {
                width: 100%;
                min-width: 0;
                padding: 1rem 0.75rem;
            }

            .main-content {
                margin-top: 6rem;
                padding: 0 0.5rem;
            }
            
            .info-banner {
                padding: 1.5rem;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .class-box{
                width: 100%;
                max-width: none;
                min-height: 88px;
                margin: 0;
                padding: 1.25rem;
            }
            .features-list {
                grid-template-columns: 1fr;
            }
            
            .feature-item {
                text-align: center;
            }
            
            .classes-container {
                padding: 1.25rem 0.75rem;
            }

            .classes-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .info-banner {
                padding: 1.5rem 1rem;
            }

            .info-banner h2 {
                font-size: 1.35rem;
            }
        }

        .other-class-box {
            background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark)) !important;
            box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4) !important;
        }

        .other-class-box:hover {
            background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-color)) !important;
            box-shadow: 0 8px 25px rgba(52, 152, 219, 0.5) !important;
        }
        
   
.seo-content {
    max-width: 1080px;
    margin: 48px auto;
    padding: clamp(24px, 5vw, 56px);
    background: #ffffff;
    border-radius: 18px;
    border-left: 5px solid var(--primary-color);
    box-shadow: 0 10px 35px rgba(44, 62, 80, 0.09);
    line-height: 1.8;
    color: #374151;
}

.seo-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    line-height: 1.25;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0 0 18px;
}

.seo-content h3 {
    margin: 2.5rem 0 1rem;
    color: #172554;
    font-size: clamp(1.35rem, 2vw, 1.75rem);
    line-height: 1.35;
}

.seo-content h4 {
    color: #1e3a8a;
    font-size: 1.08rem;
    margin: 0 0 0.55rem;
}

.seo-content p,
.seo-content li {
    font-size: 1rem;
    color: #4b5563;
}

.seo-content p {
    margin: 0 0 1.15rem;
}

.seo-content strong {
    color: #273c75;
}

.seo-article-header {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.seo-kicker {
    margin-bottom: 0.5rem !important;
    color: var(--secondary-color) !important;
    font-size: 0.85rem !important;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.seo-intro {
    font-size: 1.08rem !important;
}

.seo-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 12px;
}

.seo-toc strong {
    width: 100%;
}

.seo-toc a {
    color: #1d4ed8;
    font-weight: 600;
    text-decoration: none;
}

.seo-toc a:not(:last-child)::after {
    content: "|";
    margin-left: 0.65rem;
    color: #cbd5e1;
}

.seo-toc a:hover,
.seo-toc a:focus {
    text-decoration: underline;
}

.seo-callout {
    margin: 1.75rem 0;
    padding: 1.4rem 1.5rem;
    border: 1px solid #bfdbfe;
    border-radius: 12px;
    background: #eff6ff;
}

.seo-callout p {
    margin-bottom: 0;
}

.scheme-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 1.75rem 0;
}

.scheme-grid > div {
    padding: 1.25rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #f8fafc;
}

.scheme-grid p {
    margin-bottom: 0;
    font-size: 0.96rem;
}

.seo-steps {
    margin: 1.25rem 0 1.75rem;
    padding-left: 1.4rem;
}

.seo-steps li {
    margin-bottom: 0.85rem;
    padding-left: 0.35rem;
}

.seo-faq details {
    margin-bottom: 0.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: #ffffff;
}

.seo-faq summary {
    padding: 1rem 1.15rem;
    color: #1e3a8a;
    font-weight: 700;
    cursor: pointer;
}

.seo-faq details p {
    padding: 0 1.15rem 1rem;
    margin: 0;
}

.seo-closing-cta {
    margin-top: 3rem;
    padding: 2rem;
    color: #ffffff;
    text-align: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.seo-closing-cta h3,
.seo-closing-cta p {
    color: #ffffff;
}

.seo-closing-cta h3 {
    margin-top: 0;
}

.seo-cta-link {
    display: inline-flex;
    padding: 0.75rem 1.15rem;
    color: var(--primary-color);
    background: #ffffff;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
}

.seo-cta-link:hover,
.seo-cta-link:focus {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.16);
}

/* Mobile optimization */
@media (max-width: 768px) {
    .seo-content {
        padding: 20px;
        margin: 30px 15px;
    }

    .seo-content h2 {
        font-size: 1.65rem;
    }

    .seo-content p {
        font-size: 15px;
    }

    .scheme-grid {
        grid-template-columns: 1fr;
    }

    .seo-toc {
        display: grid;
    }

    .seo-toc a:not(:last-child)::after {
        content: "";
        margin: 0;
    }

    .seo-closing-cta {
        padding: 1.5rem 1rem;
    }
}