/* ---------------------------------------------------------------
   Shrey Pandit — personal academic site
   Quiet, typographic design: warm white ground, serif display,
   one muted steel-blue accent.
   --------------------------------------------------------------- */

:root {
    --bg: #fffefb;
    --text: #24292f;
    --text-soft: #4b5258;
    --muted: #626a74;
    --accent: #1f5a83;
    --accent-dark: #164263;
    --rule: #e7e3d8;
    --rule-soft: #efece3;
    --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
}

.container {
    max-width: 830px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    color: var(--accent);
    text-decoration: none;
}

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

strong {
    font-weight: 600;
}

/* --- Top navigation ------------------------------------------- */

.site-nav {
    border-bottom: 1px solid var(--rule);
}

.site-nav .container {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.25rem 1.5rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.site-nav .brand {
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
}

.site-nav .brand:hover {
    color: var(--accent);
    text-decoration: none;
}

.site-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 1.4rem;
    list-style: none;
}

.site-nav ul a {
    font-size: 0.93rem;
    color: var(--muted);
}

.site-nav ul a:hover {
    color: var(--accent);
    text-decoration: none;
}

.site-nav ul a.active {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 2px;
}

/* --- Header ---------------------------------------------------- */

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2.5rem;
    padding: 3rem 0 2.4rem;
}

.page-header .identity {
    flex: 1;
}

.page-header h1 {
    font-family: var(--serif);
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}

.page-header .role {
    font-size: 1.05rem;
    color: var(--text-soft);
    margin-bottom: 0.2rem;
}

.page-header .role a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--rule);
    text-underline-offset: 3px;
}

.page-header .role a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

.page-header .affil-note {
    font-size: 0.95rem;
    color: var(--muted);
    margin-bottom: 1.1rem;
}

.contact-line {
    font-size: 0.95rem;
    color: var(--muted);
}

.contact-line a {
    white-space: nowrap;
}

.contact-line .sep {
    margin: 0 0.45rem;
    color: var(--rule);
}

.portrait {
    flex: 0 0 auto;
}

.portrait img {
    width: 165px;
    height: 165px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--rule);
    display: block;
}

/* --- Home layout: sticky profile sidebar + content column -------- */

.layout {
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 5rem;
    align-items: start;
    max-width: 1240px;
    margin: 0 auto;
    padding: 3.5rem 2.5rem;
}

.sidebar {
    position: sticky;
    top: 2.5rem;
}

.side-portrait {
    display: block;
    width: 100%;
    max-width: 225px;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--rule);
}

.sidebar h1 {
    font-family: var(--serif);
    font-size: 1.85rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin: 1.2rem 0 0;
}

.name-devanagari {
    font-family: "Noto Serif Devanagari", var(--serif);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-soft);
    margin: 0.1rem 0 0.9rem;
}

.side-role {
    color: var(--text-soft);
    line-height: 1.45;
    margin-bottom: 0.25rem;
}

.side-role a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--rule);
    text-underline-offset: 3px;
}

.side-role a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

.side-loc {
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 1.1rem;
}

.side-links {
    font-size: 0.95rem;
    color: var(--muted);
}

.side-links a {
    white-space: nowrap;
}

.side-links .sep {
    margin: 0 0.4rem;
    color: var(--rule);
}

.main-col {
    min-width: 0;
}

.main-col footer {
    margin-top: 3rem;
}

@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
        gap: 2.2rem;
        padding: 2rem 1.5rem;
    }

    .sidebar {
        position: static;
    }

    .side-portrait {
        max-width: 150px;
    }

    .sidebar h1 {
        font-size: 1.9rem;
        margin-top: 1rem;
    }
}

/* --- Sections --------------------------------------------------- */

main section {
    margin-bottom: 3rem;
}

h2 {
    font-family: var(--serif);
    font-size: 1.45rem;
    font-weight: 600;
    padding-bottom: 0.4rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--rule);
}

h2 a {
    color: inherit;
}

.bio p {
    margin-bottom: 1rem;
    max-width: 72ch;
}

.bio p:last-child {
    margin-bottom: 0;
}

/* --- News -------------------------------------------------------- */

.news-list {
    list-style: none;
}

.news-list li {
    display: flex;
    gap: 1.1rem;
    padding: 0.32rem 0;
}

.news-date {
    flex: 0 0 5.2rem;
    color: var(--muted);
    font-size: 0.9rem;
    white-space: nowrap;
    padding-top: 0.12em;
}

.news-text {
    flex: 1;
}

details.older-news {
    margin-top: 0.6rem;
}

details.older-news > summary {
    cursor: pointer;
    color: var(--accent);
    font-size: 0.93rem;
    list-style: none;
    width: fit-content;
}

details.older-news > summary::-webkit-details-marker {
    display: none;
}

details.older-news > summary::after {
    content: " +";
}

details.older-news[open] > summary::after {
    content: " −";
}

details.older-news > summary:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* --- Publications ------------------------------------------------ */

.pub-note {
    font-size: 0.92rem;
    color: var(--muted);
    margin-bottom: 1.4rem;
}

.pub-year {
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 1.8rem 0 0.9rem;
}

.pub-year:first-of-type {
    margin-top: 0;
}

.pub {
    margin-bottom: 1.35rem;
    max-width: 76ch;
}

.pub-title {
    font-weight: 600;
    line-height: 1.4;
}

.pub-title a {
    color: var(--text);
}

.pub-title a:hover {
    color: var(--accent);
}

.pub-authors {
    font-size: 0.95rem;
    color: var(--text-soft);
    margin-top: 0.1rem;
}

.pub-venue {
    font-size: 0.92rem;
    font-style: italic;
    color: var(--muted);
}

.pub-links {
    font-size: 0.92rem;
    margin-top: 0.1rem;
}

.pub-links a {
    margin-right: 0.75rem;
}

.pub-links a::before {
    content: "[";
    color: var(--muted);
}

.pub-links a::after {
    content: "]";
    color: var(--muted);
}

/* --- Experience / education / teaching / talks ------------------- */

.entry {
    margin-bottom: 1.7rem;
}

.entry-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
}

.entry-head h3 {
    font-size: 1.02rem;
    font-weight: 600;
}

.entry-head h3 a {
    color: inherit;
}

.entry-head h3 a:hover {
    color: var(--accent);
}

.entry-dates {
    font-size: 0.9rem;
    color: var(--muted);
    white-space: nowrap;
}

.entry-role {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--muted);
    margin-bottom: 0.3rem;
}

.entry ul {
    padding-left: 1.2rem;
    max-width: 74ch;
}

.entry ul li {
    margin-bottom: 0.3rem;
    color: var(--text-soft);
}

.edu-list {
    list-style: none;
}

.edu-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--rule-soft);
}

.edu-list li:last-child {
    border-bottom: none;
}

.edu-degree {
    color: var(--text-soft);
    font-size: 0.95rem;
}

/* --- Talks -------------------------------------------------------- */

.talk {
    margin-bottom: 1.5rem;
    max-width: 76ch;
}

.talk-title {
    font-weight: 600;
    line-height: 1.4;
}

.talk-meta {
    font-size: 0.92rem;
    font-style: italic;
    color: var(--muted);
}

.talk-links {
    font-size: 0.92rem;
    margin-top: 0.1rem;
}

.talk-links a {
    margin-right: 0.75rem;
}

.talk-links a::before {
    content: "[";
    color: var(--muted);
}

.talk-links a::after {
    content: "]";
    color: var(--muted);
}

/* --- Footer ------------------------------------------------------- */

footer {
    border-top: 1px solid var(--rule);
    margin-top: 3.5rem;
    padding: 1.4rem 0 2.2rem;
    font-size: 0.88rem;
    color: var(--muted);
}

/* --- Small screens ------------------------------------------------ */

@media (max-width: 640px) {
    .page-header {
        flex-direction: column-reverse;
        gap: 1.4rem;
        padding-top: 2rem;
    }

    .portrait img {
        width: 130px;
        height: 130px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .news-list li {
        gap: 0.8rem;
    }

    .news-date {
        flex-basis: 4.4rem;
    }

    .entry-head,
    .edu-list li {
        flex-direction: column;
        gap: 0;
    }
}