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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

/* Navigation */
nav {
    background-color: #fff;
    border-top: 5px solid #A51C30;
    border-bottom: 1px solid #e8e8e8;
    padding: 1rem 0;
}

.nav-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #A51C30;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: #A51C30;
}

/* Main content */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 20px;
}

/* Profile section */
.profile-section {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #f5f5f5;
}

.profile-photo {
    max-width: 300px;
    width: 100%;
    height: auto;
    border: 3px solid #A51C30;
}

.profile-info h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.affiliation {
    font-size: 1.1rem;
    color: #A51C30;
}

/* Sections */
section {
    margin-bottom: 2rem;
}

h1 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.5rem;
    color: #333;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #f5f5f5;
}

h3 {
    font-size: 1.2rem;
    color: #A51C30;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

/* Links */
a {
    color: #A51C30;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* CV entries */
.cv-entry {
    margin-bottom: 1.5rem;
}

.cv-title {
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.cv-detail {
    color: #666;
    margin-bottom: 0.5rem;
}

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

.cv-entry li {
    margin-bottom: 0.25rem;
}

/* Teaching entries */
.teaching-entry {
    margin-bottom: 1.5rem;
}

.course-title {
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.course-detail {
    color: #666;
    margin-bottom: 0.5rem;
}

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

.teaching-entry li {
    margin-bottom: 0.25rem;
}

/* Download section */
.download-section {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #f5f5f5;
}

.download-button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #A51C30;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.download-button:hover {
    background-color: #8B1729;
    text-decoration: none;
}

/* Footer */
footer {
    background-color: #f5f5f5;
    border-top: 1px solid #e8e8e8;
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
    color: #666;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .profile-section {
        flex-direction: column;
        text-align: center;
    }

    .profile-photo {
        max-width: 250px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.3rem;
    }
}