* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    color: #000000;
    background-color: #f5f5f5;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid #ddd;
    padding: 1.5rem 0;
}

.profile {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.profile-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #ddd;
}

.profile-text h1 {
    margin: 0 0 0.25rem 0;
    font-size: 1.8rem;
}

.tagline {
    margin: 0;
    font-size: 0.95rem;
    color: #555;
}

main {
    padding: 1.5rem 0 2.5rem 0;
}

section {
    margin-bottom: 2rem;
}

section h2 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
    border-bottom: 1px solid #ddd;
    padding-bottom: 0.2rem;
}

#education ul,
#experience ul {
    padding-left: 1.2rem;
}

.experience-list h3 {
    margin: 0;
    font-size: 1.05rem;
}

.timeframe {
    margin: 0.1rem 0 0.4rem 0;
    font-size: 0.9rem;
    color: #666;
}

#courses table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.75rem;
}

#courses th,
#courses td {
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

#courses th {
    font-weight: bold;
    background-color: #f0f0f0;
}

#courses tbody tr:nth-child(even) {
    background-color: #fafafa;
}

.site-footer {
    background-color: #ffffff;
    border-top: 1px solid #ddd;
    padding: 1rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: #666;
}

@media (max-width: 600px) {
    .profile {
        flex-direction: column;
        align-items: flex-start;
    }

    .profile-photo {
        width: 100px;
        height: 100px;
    }

    .profile-text h1 {
        font-size: 1.5rem;
    }
}