/* EB Garamond Variable Font */
@font-face {
    font-family: 'EB Garamond';
    src: url('/fonts/EBGaramond-VariableFont_wght.ttf') format('truetype');
    font-weight: 400 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'EB Garamond';
    src: url('/fonts/EBGaramond-Italic-VariableFont_wght.ttf') format('truetype');
    font-weight: 400 800;
    font-style: italic;
    font-display: swap;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-text: #1a1a1a;
    --color-text-light: #555;
    --color-bg: #fefefe;
    --color-border: #e0e0e0;
    --color-link: #1a1a1a;
    --color-link-hover: #666;
    --max-width: 950px;
    --font-size-base: 17px;
    --line-height: 1.6;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: 'EB Garamond', Georgia, 'Times New Roman', serif;
    font-weight: 400;
    line-height: var(--line-height);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

h1 {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-link);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
}

/* Layout */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--color-border);
}

.nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.nav-title {
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 0.02em;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--color-text-light);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-text);
}

/* Hero / Profile Section */
.hero {
    padding: 3rem 0;
}

.hero-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.profile-photo {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.hero-text h1 {
    margin-bottom: 0.25rem;
}

.tagline {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 1.1rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-bottom: 0.25rem;
}

.affiliation {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-links a {
    font-size: 0.9rem;
}

/* Sections */
section {
    padding: 0.5rem 0;
}

.bio {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 1.05rem;
}

.research ul {
    list-style: none;
    columns: 2;
    column-gap: 2rem;
}

.research li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

/* CV Sections */
.cv-section {
    margin-bottom: 1rem;
}

.cv-entry {
    margin-bottom: 1.5rem;
}

.cv-entry-simple {
    margin-bottom: 0.75rem;
}

.cv-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.25rem;
}

.cv-title {
    flex: 1;
}

.cv-date {
    flex-shrink: 0;
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-align: right;
}

.cv-subtitle {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.cv-detail {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-light);
}

.cv-description {
    font-size: 0.95rem;
    color: var(--color-text);
    margin-top: 0.25rem;
}

.email {
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 1rem;
}

/* Publications */
.publication {
    margin-bottom: 2rem;
}

.pub-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.pub-authors {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 0.15rem;
}

.pub-venue {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.pub-links {
    font-size: 0.85rem;
}

.pub-links a {
    margin-right: 1rem;
}

/* Contact */
.contact .address {
    white-space: pre-line;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

/* Skills */
.skills-grid {
    display: grid;
    gap: 0.75rem;
}

.skill-category {
    font-size: 0.95rem;
    line-height: 1.5;
}

.skill-category strong {
    font-weight: 500;
}

/* Footer */
.site-footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Single Page */
.page h1 {
    margin-bottom: 2rem;
}

/* List Page */
.post-list {
    list-style: none;
}

.post-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.post-list time {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Photo Gallery */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.photo-gallery img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 4px;
    transition: transform 0.2s ease;
}

.photo-gallery img:hover {
    transform: scale(1.02);
    cursor: pointer;
}

.photo-gallery img:active {
    transform: scale(1.02);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}

.lightbox-close:hover {
    color: #bbb;
}

/* Responsive */
@media (max-width: 600px) {
    .hero-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .research ul {
        columns: 1;
    }

    h1 {
        font-size: 2rem;
    }

    .photo-gallery {
        grid-template-columns: 1fr;
    }
}