* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-bg: #ecf0f1;
    --text-color: #2c3e50;
    --border-color: #bdc3c7;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
}

/* Navigation */
.navbar {
    background-color: var(--primary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: left; /*0 auto;*/
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: #ecf0f1;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
}

/* Main Container */
.container {
    max-width: 1000px;
    margin: 3rem auto;
    padding: 0 2rem;
    min-height: calc(100vh - 200px);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Home Section */
.home-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.profile-section {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.intro-text h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.bio {
    font-size: 1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    padding: 0.5rem 1rem;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

/* CV Preview */
.cv-preview {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.cv-preview h2 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.pdf-container,
.pdf-container-full {
    width: 100%;
    height: 600px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}

.pdf-container-full {
    height: 800px;
}

.pdf-viewer {
    width: 100%;
    height: 100%;
    border: none;
}

.download-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
}

.download-btn:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Publications */
.publications-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.publication-item {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition);
}

.publication-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.publication-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.authors {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.journal {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
}

.description {
    color: #555;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.publication-links {
    display: flex;
    gap: 1rem;
}

.publication-links a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.publication-links a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--light-bg);
    transition: var(--transition);
}

.tool-card:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

.tool-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-card p {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tool-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.tool-link:hover {
    color: var(--accent-color);
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .profile-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

    .intro-text h1 {
        font-size: 1.8rem;
    }

    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

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

    .pdf-container,
    .pdf-container-full {
        height: 400px;
    }
}
/* =========================================
   Publications Section Styles
   ========================================= */

/* Typography and Spacing */
#publications {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

#publications h2 {
    color: #1a365d;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

#publications h3 {
    color: #2d3748;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* General Links */
#publications p a {
    color: #3182ce;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

#publications p a:hover {
    color: #2b6cb0;
    text-decoration: underline;
}

/* Modern Publication Cards */
.publications-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.publications-list li {
    background-color: #f8fafc;
    border-left: 4px solid #4a5568;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border-radius: 0 6px 6px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.publications-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-left-color: #3182ce;
}

.publications-list li a {
    color: #2d3748;
    text-decoration: none;
    display: block;
}

.publications-list li a:hover {
    color: #1a202c;
}
.slideshow-container {
    margin-top: 1.5rem;
    max-width: 400px;      /* adjust as you like */
}

 

.slideshow-container a {
    display: inline-block;
}

.slideshow-container img {
    max-width: 400px;          /* control size */
    width: 100%;
    height: auto;
    border-radius: 8px;        /* optional */
    object-fit: cover;
}