/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.6;
    color: #4a3f35;
    background-color: #faf8f4;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Hero Section */
header {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f5f0 0%, #f0ebe3 50%, #e8ddd1 100%);
    border-radius: 0 0 30px 30px;
    margin-bottom: 50px;
}

.hero-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    text-align: center;
}

.fractal-container {
    flex-shrink: 0;
}

.fractal-svg {
    filter: drop-shadow(0 4px 15px rgba(139, 115, 85, 0.2));
    transition: transform 0.3s ease;
}

.fractal-svg:hover {
    transform: scale(1.05);
}

.math-symbol {
    font-family: 'Times New Roman', serif;
    font-size: 24px;
    fill: #6B5B4F;
    font-weight: bold;
}

.intro-text h1 {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 2.8rem;
    color: #5a4a3a;
    margin-bottom: 8px;
    font-weight: 300;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 1.3rem;
    color: #7a6a5a;
    font-style: italic;
    margin-bottom: 5px;
}

.university {
    font-size: 1.1rem;
    color: #8b7b6b;
    font-weight: 500;
}

/* Main content */
main {
    padding: 0 0 40px 0;
}

section {
    margin-bottom: 50px;
    padding: 0;
}

h2 {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 2rem;
    color: #5a4a3a;
    margin-bottom: 20px;
    border-bottom: 2px solid #e0d5c7;
    padding-bottom: 8px;
    font-weight: 400;
}

h3 {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 1.3rem;
    color: #6a5a4a;
    margin-bottom: 12px;
    font-weight: 500;
}

p {
    margin-bottom: 15px;
    text-align: justify;
    font-size: 1.05rem;
}

/* Academic section */
.academics h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #6a5a4a;
    font-size: 1.3rem;
}

.academics h3:first-of-type {
    margin-top: 20px;
}

.academics ul {
    list-style: none;
    padding-left: 0;
    margin: 15px 0 25px 0;
}

.academics li {
    padding: 8px 0;
    color: #6a5a4a;
    position: relative;
    padding-left: 20px;
    border-bottom: 1px solid #e8ddd1;
}

.academics li:before {
    content: "∙";
    color: #a0896b;
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.academics li:last-child {
    border-bottom: none;
}

.academics a {
    color: #6a5a4a;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.academics a:hover {
    color: #5a4a3a;
    transform: translateX(3px);
}

/* Talks section */
.talks h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #6a5a4a;
    font-size: 1.3rem;
}

.talks h3:first-of-type {
    margin-top: 20px;
}

.talks ul {
    list-style: none;
    padding-left: 0;
    margin: 15px 0 25px 0;
}

.talks li {
    padding: 8px 0;
    color: #6a5a4a;
    position: relative;
    padding-left: 20px;
    border-bottom: 1px solid #e8ddd1;
}

.talks li:before {
    content: "∙";
    color: #a0896b;
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.talks li:last-child {
    border-bottom: none;
}





/* Notes pages */
.notes-list {
    list-style: none;
    padding-left: 0;
    margin: 15px 0 25px 0;
}

.notes-list li {
    padding: 12px 0;
    color: #6a5a4a;
    position: relative;
    padding-left: 20px;
    border-bottom: 1px solid #e8ddd1;
}

.notes-list li:before {
    content: "📄";
    position: absolute;
    left: 0;
    font-size: 1rem;
}

.notes-list li:last-child {
    border-bottom: none;
}

.notes-list a {
    color: #6a5a4a;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    font-size: 1.05rem;
}

.notes-list a:hover {
    color: #5a4a3a;
    transform: translateX(3px);
}

.back-nav {
    margin-bottom: 20px;
}

.back-nav a {
    display: inline-block;
    color: #8b7b6b;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 8px 16px;
    border: 1px solid #e0d5c7;
    border-radius: 20px;
    transition: all 0.2s ease;
    background-color: #faf8f4;
}

.back-nav a:hover {
    color: #5a4a3a;
    border-color: #d0c5b7;
    background-color: #f5f3ef;
    transform: translateY(-1px);
}

/* Contact section */
.contact-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.contact-icon {
    flex-shrink: 0;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.contact-item:hover .contact-icon {
    opacity: 1;
}

.contact-item a {
    color: #7a5a3a;
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 1.05rem;
}

.contact-item a:hover {
    color: #5a4a3a;
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
    border-top: 2px solid #e8ddd1;
    color: #8b7b6b;
}

/* Responsive design */
@media (max-width: 768px) {
    .hero-section {
        flex-direction: column;
        gap: 20px;
    }
    
    .fractal-svg {
        width: 150px;
        height: 150px;
    }
    
    .intro-text h1 {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .university {
        font-size: 1rem;
    }
    
    
    section {
        padding: 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .contact-item {
        gap: 10px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 40px 0;
    }
    
    .intro-text h1 {
        font-size: 1.8rem;
    }
    
    .fractal-svg {
        width: 120px;
        height: 120px;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    section {
        margin-bottom: 30px;
        padding: 0;
    }
}