/* ==========================================================================
   MAIN SECTIONS
   ========================================================================== */

/* Section Styles */
section {
    padding: 60px 0;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero {
    background: #ffffff;
    color: #2c3e50;
    padding: 120px 0 80px;
    min-height: 70vh;
    display: flex;
    align-items: center;
    border-bottom: 2px solid #34495e;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.profile-photo {
    width: 180px;
    height: 240px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero-text h1 {
    font-family: 'Source Serif Pro', serif;
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #1a252f;
    letter-spacing: -0.5px;
}

.title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #34495e;
    font-weight: 500;
}

.affiliation {
    margin-bottom: 1.8rem;
    font-size: 1.05rem;
    line-height: 1.6;
}

.affiliation strong {
    color: #1a252f;
    font-weight: 600;
}

.bio {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.8rem;
    margin-top: 1rem;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    background: transparent;
    padding: 0;
    border: none;
}

.contact-info i {
    width: 20px;
    color: #666;
    opacity: 0.8;
}

.contact-info a {
    color: #333;
    text-decoration: none;
}

.contact-info a:hover {
    color: #3498db;
}

/* About Section */
.about {
    background: #f8f9fa;
    clear: both;
    overflow: hidden;
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: #444;
}

/* Education Section */
.education {
    background: white;
}

.education-item {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 6px;
    border-left: 4px solid #34495e;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.education-item h3 {
    font-family: 'Source Serif Pro', serif;
    color: #1a252f;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.edu-info {
    line-height: 1.6;
    color: #555;
}

.edu-info strong {
    color: #2c3e50;
}

/* Research Section */
.research {
    background: #fafafa;
}

.research-interests {
    background: white;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.research-interests p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #444;
}

.research-projects .project {
    background: white;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #34495e;
}

.project h3 {
    font-family: 'Source Serif Pro', serif;
    color: #1a252f;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.project-period {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.project-description {
    line-height: 1.7;
    margin-bottom: 1rem;
    color: #444;
}

.project-tech {
    color: #555;
    font-size: 0.9rem;
}

/* Experience Section */
.experience {
    background: white;
}

.experience-item {
    background: #ffffff;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: 6px;
    border-left: 4px solid #34495e;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.experience-item h3 {
    font-family: 'Source Serif Pro', serif;
    color: #1a252f;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
    font-weight: 600;
}

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

.position-info strong {
    color: #2c3e50;
}

.experience-item ul {
    list-style-position: inside;
    line-height: 1.6;
    color: #444;
}

.experience-item ul li {
    margin-bottom: 0.5rem;
    list-style-type: disc;
}

/* Teaching Section */
.teaching {
    background: #fafafa;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
}