:root {
    --bg-color: #fdf5e6; /* Light Ochre */
    --text-color: #4a4a4a; /* Dark Gray */
    --heading-color: #2c2c2c; /* Darker Gray */
    --link-color: #8c5a3c; /* Warm Brown */
    --border-color: #eaddc7;
}

body {
    font-family: 'Nunito Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
    padding: 2rem 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 1.1rem;
}

main {
    max-width: 650px;
    margin: 0 auto;
}

.profile-photo {
    display: block;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 4px solid white;
}

h1 {
    font-family: 'Lora', serif;
    font-size: 2rem;
    text-align: center;
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--heading-color);
}

h2 {
    font-family: 'Lora', serif;
    font-size: 1.6rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--heading-color);
}

p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease-in-out;
}

a:hover {
    text-decoration: underline;
    color: #6b462f;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

li {
    margin-bottom: 0.5rem;
}

/* Tabs */
.tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.tabs a {
    padding: 0.4rem 1rem;
    margin-bottom: -1px;
    border-bottom: 2px solid transparent;
    color: var(--text-color);
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.tabs a:hover {
    text-decoration: none;
    color: var(--link-color);
}

.tabs a[aria-current="page"] {
    color: var(--heading-color);
    border-bottom-color: var(--link-color);
}

/* Publications */
.publications {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.publications > li {
    margin-bottom: 2rem;
}

.pub-title {
    font-family: 'Lora', serif;
    color: var(--heading-color);
    display: block;
    margin-bottom: 0.25rem;
}

.pub-authors,
.pub-venue {
    display: block;
    font-size: 0.95rem;
    line-height: 1.6;
}

.pub-venue {
    color: #6f6f6f;
}

.pub-venue em {
    font-style: italic;
}

.pub-note {
    font-size: 0.9rem;
    color: #7a7a7a;
    margin-top: 2.5rem;
}