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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

header {
    background:
        linear-gradient(135deg, rgba(35,47,62,0.93) 0%, rgba(26,37,47,0.93) 100%),
        url('figures/wordcloud_linkedin_banner.png');
    background-size: cover, contain;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

header p:first-of-type {
    margin-bottom: 0;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.contact-links a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    line-height: 1;
    gap: 0.5rem;
    transition: opacity 0.3s;
}

.contact-links a i {
    display: inline-flex;
    align-items: center;
    font-size: 1.1rem;
    line-height: 1;
}

.contact-links a:hover {
    opacity: 0.8;
}

nav {
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    padding: 1rem 1.5rem;
    color: #232F3E;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
}

nav ul li a:hover {
    background: #f0f0f0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    background: white;
    margin: 2rem 0;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

h2 {
    color: #232F3E;
    border-bottom: 3px solid #FF9900;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

h3 {
    color: #232F3E;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.education-item, .experience-item {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.education-item:last-child, .experience-item:last-child {
    border-bottom: none;
}

.degree-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.degree-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: #232F3E;
}

.date {
    color: #666;
    font-style: italic;
}

.institution {
    color: #555;
    margin-bottom: 0.5rem;
}

.publication {
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 3px solid #FF9900;
}

.publication-title {
    font-weight: 600;
    color: #232F3E;
    margin-bottom: 0.3rem;
}

.publication-venue {
    color: #666;
    font-style: italic;
    margin-bottom: 0.5rem;
}

.publication-details {
    color: #555;
    font-size: 0.95rem;
}

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

.skill-category {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 6px;
    border-left: 3px solid #FF9900;
}

.skill-category h4 {
    color: #232F3E;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.skill-category p {
    color: #555;
    font-size: 0.95rem;
}

.award-item {
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 3px solid #FF9900;
}

.news-item {
    display: flex;
    gap: 1.5rem;
    padding: 0.8rem 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.news-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.news-date {
    flex: 0 0 auto;
    width: 5.5rem;
    color: #FF9900;
    font-weight: 600;
}

.news-content {
    color: #555;
}

.news-content a {
    color: #232F3E;
    font-weight: 500;
}

@media (max-width: 600px) {
    .news-item {
        flex-direction: column;
        gap: 0.3rem;
    }
}

ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

ul li {
    margin-bottom: 0.5rem;
    color: #555;
}

footer {
    background: #232F3E;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: #FF9900;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s;
    margin-top: 0.5rem;
}

.btn:hover {
    background: #ec8a00;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .degree-header {
        flex-direction: column;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li a {
        border-bottom: 1px solid #f0f0f0;
    }
}