/* GLOBAL RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --mint-bg: #e2f7eb; /* Exact Squarespace light green background */
    --text-color: #111111;
    --content-width: 1200px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-color);
    background-color: #ffffff;
    line-height: 1.6;
    font-size: 20px;
    -webkit-font-smoothing: antialiased;
}

/* TYPOGRAPHY */
h2 {
    font-size: 1.45rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

/* Remove top margin for the first heading in each column */
.col-left section:first-child h2, 
.col-right section:first-child h2 {
    margin-top: 0;
}

p {
    margin-bottom: 1.25rem;
}

a {
    color: var(--text-color);
    text-decoration: underline;
    text-underline-offset: 3px;
}

a:hover {
    color: #555555;
}

ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

ul.clean-list {
    margin-left: 1rem;
    list-style-type: disc;
}

li {
    margin-bottom: 0.75rem;
    padding-left: 0.25rem;
}

/* HEADER (Mint Background) */
.site-header {
    background-color: var(--mint-bg);
    padding: 1.5rem 2rem;
}

.header-container {
    max-width: var(--content-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-title a {
    font-size: 1.65rem;
    font-weight: 700;
    text-decoration: none;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    font-weight: 500;
}

.nav-link.active {
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
}

/* PILL BUTTON */
.btn-pill {
    background-color: #000000;
    color: #ffffff !important;
    text-decoration: none;
    padding: 10px 24px;
    border-radius: 50px;
/*    font-size: 0.85rem;*/
    font-weight: 500;
    transition: opacity 0.2s;
}

.btn-pill:hover {
    opacity: 0.8;
}

/* MAIN CONTENT GRID */
.main-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 3rem 2rem;
}

.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

/* IMAGES & LOGOS */
.profile-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
}

.academic-logos {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin: 1.5rem 0;
}

.logo-stanford {
    max-height: 120px;
    width: auto;
}

.logo-vub {
    max-height: 120px;
    width: auto;
}

/* FOOTER (Mint Background) */
.site-footer {
    background-color: var(--mint-bg);
    padding: 4rem 2rem 2rem 2rem;
}

.footer-container {
    max-width: var(--content-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-container h2 {
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.footer-container p {
    margin-bottom: 0.5rem;
}

.footer-copyright {
    max-width: var(--content-width);
    margin: 0 auto;
/*    font-size: 0.85rem;*/
}

/* RESPONSIVE DESIGN (Mobile view) */
@media (max-width: 900px) {
    .two-column-layout, .footer-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
}