:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --light-text: #7f8c8d;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
        }
        
        .hero-header {
            /* background-image: url("images/hero.png"); */
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 3rem 0;
            margin-bottom: 3rem;
            border-radius: 0 0 10px 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
        }
        
        .section-title {
            position: relative;
            margin-bottom: 2rem;
            padding-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        
        .content-block {
            background: white;
            border-radius: 8px;
            padding: 2rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-left: 4px solid var(--secondary-color);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .content-block:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }
        
        .timeline-item {
            position: relative;
            padding-left: 3rem;
            margin-bottom: 2.5rem;
        }
        
        .timeline-item:before {
            content: '';
            position: absolute;
            left: 0.7rem;
            top: 0;
            height: 100%;
            width: 2px;
            background: var(--secondary-color);
        }
        
        .timeline-badge {
            position: absolute;
            left: 0;
            top: 0;
            width: 1.5rem;
            height: 1.5rem;
            border-radius: 50%;
            background: var(--secondary-color);
            color: rgb(4, 9, 250);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        
        .study-image {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-bottom: 1.5rem;
        }
        
        .study-image img {
            width: 100%;
            height: auto;
            transition: transform 0.3s ease;
        }
        
        .study-image:hover img {
            transform: scale(1.03);
        }
        
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9f5ff);
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        
        .objective-list {
            list-style-type: none;
            padding-left: 0;
        }
        
        .objective-list li {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 1rem;
        }
        
        .objective-list li:before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--secondary-color);
        }
        
        .methodology-icon {
            font-size: 2rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }
        
        @media (max-width: 768px) {
            .hero-header {
                padding: 2rem 0;
            }
            
            .content-block {
                padding: 1.5rem;
            }
        }