/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    width: 100%; /* Add this to ensure it takes full width up to max-width */
    margin: 0 auto;
    padding: 20px;
}

.heading {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

h2 {
    font-size: 2rem;
    margin: 20px 0;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

h3 {
    font-size: 1.5rem;
    margin: 15px 0;
    color: #2c3e50;
}

h4 {
    font-size: 1.3rem;
    margin: 10px 0;
    color: #3498db;
}

/* Year selection */
.year-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

.year-btn {
    padding: 8px 16px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}

.year-btn:hover {
    background-color: #2980b9;
}

.year-btn.active {
    background-color: #2c3e50;
}

/* Content sections */
.year-content {
    display: none;
    animation: fadeIn 0.5s;
}

.year-content.active {
    display: block;
}

.semester-section {
    margin-bottom: 30px;
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.study-year-section {
    margin: 15px 0;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 6px;
}

/* Projects grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.project-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid #eee;
}

.project-info {
    padding: 15px;
}

.project-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #2c3e50;
}

.project-position {
    display: inline-block;
    padding: 3px 8px;
    background-color: #3498db;
    color: white;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: 8px;
}

.project-link {
    display: inline-block;
    margin-top: 10px;
    padding: 5px 10px;
    background-color: #2c3e50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
}

.project-link:hover {
    background-color: #3498db;
}

/* For PDF embeds */
.pdf-embed {
    width: 100%;
    height: 500px;
    border: none;
}

/* Image gallery */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.gallery-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.3s;
}

.gallery-image:hover {
    transform: scale(1.05);
}

/* Modal for full-size images */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Responsive design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .year-btn {
        font-size: 0.9rem;
        padding: 6px 12px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}