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

body {
    font-family: 'Georgia', serif;
    line-height: 1.6;
    color: #3a3a3a;
    background: linear-gradient(135deg, #f5f1e8 0%, #e8dcc0 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #8b4513;
}

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

.nav-links a {
    text-decoration: none;
    color: #3a3a3a;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    position: relative;
    overflow: hidden;
}

.nav-links a:hover {
    color: #8b4513;
    background: rgba(139, 69, 19, 0.1);
    transform: translateY(-2px);
}

.nav-links a.active {
    background: linear-gradient(45deg, #8b4513, #cd853f);
    color: white;
}

/* Main Content */
main {
    margin-top: 80px;
    padding: 2rem 0;
}

.page {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.page.active {
    display: block;
}

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

/* Home Page */
.hero {
    text-align: center;
    padding: 4rem 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 3rem;
    backdrop-filter: blur(5px);
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    background: linear-gradient(45deg, #ddd, #f0f0f0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #8b4513;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
}

.profile-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.hero h1 {
    font-size: 3rem;
    color: #8b4513;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 2rem;
}

.current-work {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.work-card {
    background: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(139, 69, 19, 0.1);
}

.work-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.work-card h3 {
    color: #8b4513;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.work-card p {
    color: #666;
    line-height: 1.8;
}

.work-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

/* Content Pages */
.content-page {
    background: rgba(255, 255, 255, 0.8);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.content-page h2 {
    color: #8b4513;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.content-section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    border-left: 4px solid #cd853f;
}

.content-section h3 {
    color: #8b4513;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.content-section p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.publication-item, .project-item, .blog-item , .interest-item{
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border: 1px solid rgba(139, 69, 19, 0.1);
    transition: all 0.3s ease;
}

.publication-item:hover, .project-item:hover, .blog-item:hover, .interest-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.item-title {
    color: #8b4513;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.item-meta {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.skill-category {
    background: rgba(255, 255, 255, 0.6);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(139, 69, 19, 0.1);
}

.skill-category h4 {
    color: #8b4513;
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: linear-gradient(45deg, #cd853f, #daa520);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
    color: #666;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 20px;
}

.footer a {
    color: #8b4513;
    text-decoration: none;
    font-weight: bold;
    margin: 0 5px;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: #cd853f;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .nav-links a {
        padding: 0.3rem 0.8rem;
        font-size: 0.9rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .profile-photo {
        width: 150px;
        height: 150px;
        font-size: 2rem;
    }

    .current-work {
        grid-template-columns: 1fr;
    }

    .content-page {
        padding: 2rem 1rem;
    }
}