:root {
    /* Background colors */
    --bg_h: white;
    --bg: white;
    --bg_s: white;
    --bg_code: #f3f3f2;
    
    /* Foreground colors */
    --fg: #282828;
    --fg_code: #64a24e;
    --fg1: #3c3836;
    --fg2: #504945;
    --fg3: #6b6866;
    --fg4: #676767;
    --fg5: #969696;
    
    /* Accent colors */
    --link-color: #0071BC;
    --blue: #0E9EE4;
    --hover-bg: rgba(128, 128, 128, 0.12);
    
    /* Fonts */
    --font-sans: "GT America", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-sans-fallback: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Iowan Old Style BT", Georgia, serif;
    
    /* Common transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    overflow-y: scroll;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--fg4) var(--bg)
}

body {
    font-family: var(--font-serif);
    font-size: 17px;
    line-height: 1.65;
    background-color: var(--bg);
    color: var(--fg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    overflow-x: hidden
}

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

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

#wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========= Header Styles ========= */
.navbar-logo {
    flex-shrink: 0
}

#header .navbar-logo a:link,
#header .navbar-logo a:visited,
#header .navbar-logo a:active,
#header .navbar-logo a:hover {
    font-family: "Chakra Petch", var(--font-sans-fallback) !important;
    font-style: normal !important;
    font-weight: 500 !important;
    font-size: 17px !important;
    line-height: 25px !important;
    letter-spacing: 1.7px !important;
    color: var(--fg4);
    text-decoration: none !important;
    transition: opacity var(--transition-normal)
}

#header .navbar-logo a:hover {
    opacity: 0.8
}

.nav-group {
    display: flex;
    align-items: center;
    gap: 0
}

.top-nav {
    display: flex;
    gap: 1.75rem;
    align-items: center;
    font-family: var(--font-serif);
}

.top-nav a {
    font-family: var(--font-serif);
    font-weight: 400;
    font-style: normal;
    color: var(--fg1) !important;
    text-decoration: none;
    font-size: 17px;
    letter-spacing: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    align-items: center;
    height: 100%;
    opacity: 1
}

.top-nav a:hover {
    text-decoration: underline;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.navbar-spacer {
    flex: 1;
}

/* Logo Container */
.logo-container {
    text-align: center;
    padding: 3rem 2rem 2rem;
}

/* Home page header with photo and info side by side */
.home-header {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 1.5rem;
}

.personal-photo {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.home-info {
    text-align: left;
    max-width: 600px;
}

.home-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 400;
    line-height: 1.2;
    color: var(--fg);
    margin-bottom: 1rem;
}

.home-subtitle {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    line-height: 1.65;
    color: var(--fg2);
    margin-bottom: 1rem;
}

.home-subtitle p {
    margin: 0.25rem 0;
}

.home-email {
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    color: var(--fg3);
    margin: 1.5rem 0;
}

/* Social links with text */
.social-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--link-color);
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    transition: opacity var(--transition-normal);
}

.social-link:hover {
    opacity: 0.7;
    text-decoration: underline;
}

.social-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    flex-shrink: 0;
}

.social-name {
    font-weight: 500;
}

.logo {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 400;
    line-height: 1.2;
    color: var(--fg);
    text-decoration: none;
    display: inline-block;
    transition: opacity var(--transition-normal);
}

.logo:hover {
    opacity: 0.8;
}

a.logo {
    cursor: pointer;
}

/* Announcement Pill */
.home-announcement {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg_code);
    border-radius: 2rem;
    text-decoration: none;
    transition: background-color var(--transition-normal);
    font-family: var(--font-serif);
    font-size: 14px;
}

.home-announcement:hover {
    background-color: var(--hover-bg);
}

.pill {
    background-color: var(--blue);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.announcement-text {
    color: var(--fg1);
}

/* Mobile Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--fg1);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg);
    z-index: 1000;
    padding: 2rem;
}

.mobile-menu-overlay.active {
    display: block;
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 4rem;
}

.mobile-menu-nav a {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--fg1);
    text-decoration: none;
}

/* ========= Main Content ========= */
#main {
    flex: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.content {
    margin-bottom: 1rem;
}

.content h2 {
    margin: 2.5rem 0 1.5rem;
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 1.3;
}

.content p {
    margin-bottom: 1.5rem;
}

.content a {
    color: var(--link-color);
    text-decoration: none;
    transition: opacity var(--transition-normal);
}

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

.content em {
    font-style: italic;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-serif);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}


/* ========= Footer ========= */
#footer {
    padding: 0rem 0rem 2rem;
    text-align: center;
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--fg3);
}

#footer a {
    color: var(--fg3);
    text-decoration: none;
    transition: color var(--transition-normal);
}

#footer a:hover {
    color: var(--fg1);
    text-decoration: underline;
}

.footer-separator {
    margin: 0 0.5rem;
}

/* ========= Blog List Styles ========= */
.post-list {
    list-style: none;
    margin: 2rem 0;
}

.post-item {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--bg_code);
}

.post-item:last-child {
    border-bottom: none;
}

.post-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.post-title a {
    color: var(--fg);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.post-title a:hover {
    color: var(--blue);
}

.post-meta {
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--fg4);
    margin-bottom: 0.75rem;
}

.post-summary {
    color: var(--fg2);
}


/* ========= Code Blocks ========= */
code {
    font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
    background-color: var(--bg_code);
    color: var(--fg_code);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background-color: var(--bg_code);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

pre code {
    background: none;
    padding: 0;
}

/* ========= Blockquotes ========= */
blockquote {
    border-left: 3px solid var(--blue);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: var(--fg2);
    font-style: italic;
}

/* ========= Homepage Sections ========= */

/* News Section */
.news-section {
    margin: 2rem 0 1.5rem;
    padding-bottom: 0;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--fg);
    margin-bottom: 1.5rem;
}

/* Shared filter button styles */
.news-filters,
.publication-filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.news-filter-btn,
.pub-filter-btn {
    font-family: var(--font-serif);
    font-size: 15px;
    font-weight: 500;
    padding: 0.5rem 0;
    border: none;
    border-bottom: 2px solid transparent;
    background-color: transparent;
    color: var(--fg3);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.news-filter-btn:hover,
.pub-filter-btn:hover {
    color: var(--fg1);
}

.news-filter-btn.active,
.pub-filter-btn.active {
    color: var(--fg);
    border-bottom-color: var(--fg);
}

.news-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.news-item {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.news-date {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--fg);
    flex-shrink: 0;
}

.news-text {
    color: var(--fg1);
    font-size: 1rem;
}

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

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

/* Honors & Awards Section */
.awards-section {
    margin: 1.5rem 0 1rem;
}

.awards-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.award-item {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    line-height: 1.6;
}

.award-year {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--fg2);
    flex-shrink: 0;
    text-align: right;
    min-width: 3rem;
}

.award-text {
    color: var(--fg1);
    font-size: 1rem;
}

/* Publications Section */
.publications-section {
    margin: 1.5rem 0 1rem;
}

.publications-section .section-title {
    margin-bottom: 1rem;
}

.publications-list {
    display: flex;
    flex-direction: column;
}

.publication-item {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 0;
    background-color: var(--bg);
    border: none;
    border-radius: 0;
}

.publication-item:hover {
    background-color: transparent;
}

.pub-image {
    flex-shrink: 0;
    width: 30%;
    max-width: 30%;
    overflow: hidden;
}

.pub-image img {
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
    border-radius: 0;
}

.pub-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pub-title {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: bold;
}

.pub-venue {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--fg2);
}

.pub-authors {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--fg);
}

.pub-links {
    margin: 0;
    line-height: 1.4;
}

.pub-link {
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    color: var(--link-color);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    margin-right: 0.5rem;
}

.pub-link:hover {
    opacity: 0.7;
}


/* ========= Responsive Design ========= */
@media (max-width: 768px) {
    .top-nav {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .logo {
        font-size: 2.5rem;
    }
    
    .site-header {
        padding: 1rem;
    }
    
    #main {
        padding: 1.5rem;
    }
    
    .content h2 {
        font-size: 1.5rem;
    }
    
    .home-header {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .personal-photo {
        width: 150px;
        height: 150px;
    }
    
    .home-info {
        text-align: center;
    }
    
    .home-title {
        font-size: 2rem;
    }
    
    .home-subtitle {
        font-size: 1.0625rem;
    }
    
    .home-email {
        font-size: 1rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .social-icon {
        width: 22px;
        height: 22px;
    }
    
    .news-item {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .news-date {
        min-width: auto;
    }
    
    .publication-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .pub-image {
        width: 100%;
        max-width: 100%;
    }
    
    .pub-image img {
        max-width: 100%;
        height: auto;
    }
}