/* FILE: style.css */

body {
    font-family: Georgia, serif;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.7;
    color: #222;
    padding: 0 20px;
    background: #ffffff;
}

.highlight {
    color: #830f1e;
    text-decoration: none;
}

.highlight:hover {
    text-decoration: underline;
}


.footer {
    margin-top: 80px;
    padding: 30px 0;
    text-align: center;
}

.footer a {
    margin: 0 18px;
    font-size: 2.2rem;   /* bigger icons */
    color: #0b2a5b;      /* main color */
    text-decoration: none;
}

.footer a:hover {
    color: #830f1e;      /* your accent */
}

/* Top navigation bar */
nav {
    background-color: #0b2a5b; /* dark blue */
    padding: 14px 20px;
    margin: 0 -20px 30px;
    position: relative; 
}

nav a {
    margin-right: 20px;
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
}

nav a:hover {
    text-decoration: underline;
    color: #cbd5f5;
}


.theme-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);

    cursor: pointer;
    font-size: 1.4rem;
    user-select: none;
}

.theme-icon:hover {
    opacity: 0.7;
}


h1 {
    font-weight: normal;
    margin-bottom: 25px;
}

.layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    align-items: start;
}

img.profile {
    width: 100%;
    height: auto;
}

@media (max-width: 800px) {
    .layout {
        grid-template-columns: 1fr;
    }
}
main {
    max-width: 900px;
}

section {
    margin-top: 40px;
}

h2 {
    margin-bottom: 14px;
    color: #0b2a5b;
    font-weight: normal;
}
.small {
    color: #666;
    font-size: 0.95rem;
}

.small a {
    color: #444;
    text-decoration: none;
}

.small a:hover {
    text-decoration: underline;
}

.teaching-figure {
    margin: 20px 0 35px 0;
}

.teaching-photo {
    width: 100%;
    max-width: 620px;
    height: auto;
    display: block;
    border-radius: 4px;
}

.caption {
    margin-top: 8px;
    color: #666;
    font-size: 0.95rem;
}

.research-section {
    margin-top: 50px;
}

.full-width {
    margin-bottom: 20px;
}

.research-block {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 30px;
    align-items: start;
}

.research-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

@media (max-width: 850px) {
    .research-block {
        grid-template-columns: 1fr;
    }
}
#theme-toggle {
    margin-bottom: 25px;
    padding: 8px 14px;
    border: 1px solid #0b2a5b;
    background: #ffffff;
    color: #0b2a5b;
    cursor: pointer;
    font-family: Georgia, serif;
}

body.dark {
    background: #0f172a;
    color: #e5e7eb;
}

body.dark nav {
    background-color: #020617;
}

body.dark h2 {
    color: #bfdbfe;
}

body.dark .small,
body.dark .caption {
    color: #cbd5e1;
}

body.dark a {
    color: #93c5fd;
}

body.dark .highlight {
    color: #fca5a5;
}

body.dark #theme-toggle {
    background: #1e293b;
    color: #e5e7eb;
    border-color: #93c5fd;
}

.theme-icon {
    line-height: 1;
    display: inline-block;
}