/* General Body Styling */
body {
    font-family: 'Times New Roman', serif;
    color: #222;
    background-color: #fafafa;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* General Transitions */
*, *::before, *::after {
    transition: all 0.3s ease;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header Styles */
.site-header {
/*     background: linear-gradient(135deg, #5bacfc 0%, #004b8d 100%); */
    background: linear-gradient(135deg, #2c2a4a 0%, #4b0082 100%); /* Dark navy to dark purple gradient */
    padding: 10px 15px;
    border-bottom: 2px solid #5bacfc;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000; /* Ensures header is on top */
    color: #fff;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    animation: fadeInDown 1s ease-out forwards;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.site-header:hover {
/*     background: linear-gradient(135deg, #004b8d 0%, #5bacfc 100%); */
    background: linear-gradient(135deg, #2c2a4a 0%, #4b0082 100%); /* Dark navy to dark purple gradient */

}

/* Navbar Styles */
.navbar {
    display: flex;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

.navbar-nav {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin: 0;
    padding: 0;
}

.navbar-nav .nav-item {
    margin: 0 0.5rem;
}

.navbar-nav .nav-link {
    color: #fff;
    font-weight: bold;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

/* Responsive Navbar Adjustments */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: center;
    }

    .navbar-nav {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding: 0;
    }

    .navbar-nav .nav-item {
        margin: 0.5rem 0;
        text-align: center;
    }
}

/* Main Content Styles */
.main-content {
    margin: 0 auto;
    padding: 120px 1rem 2rem; /* Increased top padding to ensure content is below the fixed header */
    background: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    animation: slideInFromRight 1s ease-out forwards;
    position: relative;
    z-index: 500; /* Ensure content is below header */
}

@keyframes slideInFromRight {
    from { transform: translateX(100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Profile Image Styling */
.logo-img {
    max-width: 250px;
    max-height: 250px;
    width: auto;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .logo-img {
        max-width: 200px;
        max-height: 200px;
    }
}

@media (max-width: 425px) {
    .logo-img {
        max-width: 150px;
        max-height: 150px;
    }
}
.center-heading {
    text-align: center;
    margin-bottom: 2rem; /* Optional: Adjust spacing below the heading */
    font-size: 2rem; /* Match font size with other headings */
    color: #004b8d; /* Match heading color */
}
.projects-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 0 -1rem;
}

/* Project Cards */
.project-card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    margin: 1rem;
    padding: 1.25rem;
    width: calc(50% - 2rem);
    box-sizing: border-box;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    background-color: #f0f8ff;
}

.project-card h2 {
    font-size: 1.25rem;
    margin-top: 0;
    color: #002244;
}

.project-card p {
    font-size: 1rem;
    color: #333;
}

/* Publications Container */
.publications-container {
    max-width: 800px;
    margin: 1rem auto;
    padding: 1.25rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    animation: scaleIn 0.8s ease-in-out forwards;
}

@keyframes scaleIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.publications-container:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    transform: scale(1.02);
}

.publications-container h2 {
    font-size: 1.375rem;
    margin-bottom: 0.75rem;
}

.publications-container p {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

/* Certificates Section */
.certificates-section {
    margin: 2rem auto;
    padding: 1.5rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.certificates-section h1 {
    font-size: 2rem; /* Font size for h1 */
    margin-bottom: 1.5rem;
    color: #004b8d; /* Heading color */
    text-align: center; /* Center the heading */
}

.certificates-list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: certificate-counter; /* Reset counter */
}

.certificate-item {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
    transition: background-color 0.3s ease;
    position: relative; /* To position the number */
    padding-left: 3rem; /* Ensure space for the number */
}

.certificate-item:last-child {
    border-bottom: none;
}

.certificate-item:hover {
    background-color: #f7f7f7;
}

.certificate-item::before {
    content: counter(certificate-counter) ". "; /* Add number before each item */
    counter-increment: certificate-counter; /* Increment counter */
    font-size: 1.25rem; /* Font size for numbering */
    color: #004b8d; /* Number color */
    font-weight: bold; /* Number weight */
    position: absolute;
    left: 0; /* Align number to the left edge */
    top: 0; /* Align to the top edge */
    height: 100%; /* Ensure it spans the full height of the item */
    display: flex;
    align-items: center; /* Center vertically */
}

.certificate-title {
    font-size: 1.25rem;
    color: #333;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.certificate-title:hover {
    color: #0056b3;
}

.certificate-description {
    font-size: 1rem;
    color: #555;
}
/* Footer Styles */
.site-footer {
    background: linear-gradient(135deg, #2c2a4a 0%, #4b0082 100%); /* Dark navy to dark purple gradient */
    color: #fff;
    padding: 1rem;
    position: relative;
    width: 100%;
    bottom: 0;
    left: 0;
    text-align: center;
    box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease-out forwards;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Button Styling */
.button {
    background-color: #004b8d;
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.button:hover {
    background-color: #5bacfc;
    color: #004b8d;
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    
background: linear-gradient(135deg, #2c2a4a 0%, #4b0082 100%); /* Dark navy to dark purple gradient */
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.5s ease;
    border-radius: 50%;
}

.button:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .site-header, .site-footer {
        padding: 8px 12px;
        animation: none; /* Disable animations for better performance on smaller screens */
    }

    .main-content {
        padding: 120px 0.5rem 2rem; /* Increased top padding for small screens */
    }

    .project-card {
        width: calc(100% - 2rem); /* Full width for smaller screens */
        margin: 0.5rem 0; /* Adjust margin */
    }

    .project-card:hover {
        transform: scale(1.02); /* Less pronounced hover effect */
    }
}

@media (max-width: 425px) {
    .container {
        padding: 0 0.5rem; /* Adjust padding for extra small screens */
    }

    .main-content {
        padding: 120px 0.5rem 2rem; /* Adjusted top padding for smaller screens */
    }

    .navbar-nav .nav-link {
        padding: 0.5rem 1rem; /* Adjust padding for smaller screens */
    }

    .publications-container, .certificates-section {
        padding: 0.75rem; /* Adjust padding */
    }
}