/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #161616;
    --text-primary: #ededed;
    --text-secondary: #9aa0a6;
    --text-tertiary: #6b7178;
    --accent: #93c5fd;
    --accent-hover: #bfdbfe;
    --border-color: #232323;

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
        'Helvetica Neue', sans-serif;
    --font-serif: ui-serif, 'Iowan Old Style', 'Apple Garamond',
        'Source Serif Pro', Charter, Baskerville, Georgia, serif;
}

body {
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.55;
    font-size: 15px;
    min-height: 100vh;
}

.container {
    max-width: 760px;
    width: 100%;
    margin: 0 auto;
    padding: 96px 24px 64px;
}

/* Header */
header {
    margin-bottom: 36px;
}

.profile-section {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 18px;
    margin-bottom: 12px;
}

.profile-pic {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.header-text {
    text-align: left;
}

.header-text h1 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.bio {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    max-width: 56ch;
}

.bio .location {
    color: var(--text-tertiary);
}

/* Main Content */
main {
    margin-bottom: 32px;
}

section {
    margin-bottom: 28px;
}

h2 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 14px;
    color: var(--text-primary);
    text-transform: lowercase;
    letter-spacing: -0.005em;
}

/* Item lists (currently / experience / education) */
.item-list {
    list-style: none;
}

.item-list li {
    margin-bottom: 18px;
}

.item-list li:last-child {
    margin-bottom: 0;
}

.item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.item-logo {
    width: 44px;
    height: 44px;
    border-radius: 6px;
    object-fit: contain;
    background: var(--bg-secondary);
    padding: 4px;
    flex-shrink: 0;
}

.item-logo.icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.item-logo.icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--text-secondary);
}

.item-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.item-title {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
}

.item-meta {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: baseline;
}

.item-meta .dates {
    color: var(--text-tertiary);
    font-size: 13px;
}

.item-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.5;
}

.item-advisors {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Demos — keep within the 680px content column */
.demo-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.demo {
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform 0.3s ease;
}

.demo.is-playable {
    cursor: pointer;
    position: relative;
}

.demo:hover {
    transform: translateY(-2px);
}

.demo.is-playable::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    aspect-ratio: 2048 / 1099;
    border-radius: 8px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><circle cx="32" cy="32" r="26" fill="black" fill-opacity="0.6"/><path d="M27 21l16 11-16 11z" fill="white"/></svg>') center / 52px 52px no-repeat;
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.demo.is-playable:hover::after {
    opacity: 1;
}

.demo video,
.demo .demo-placeholder {
    width: 100%;
    aspect-ratio: 2048 / 1099;
    object-fit: cover;
    display: block;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    transition: border-color 0.3s ease;
}

.demo:hover video {
    border-color: var(--text-tertiary);
}

.demo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 12px;
    text-transform: lowercase;
    letter-spacing: 0.02em;
    border-style: dashed;
    background: var(--bg-secondary);
}

.demo-caption {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 2px;
    font-size: 13px;
    line-height: 1.4;
}

.demo-caption strong {
    color: var(--text-primary);
    font-weight: 500;
}

.demo-caption span {
    color: var(--text-tertiary);
    font-size: 12.5px;
}

@media (max-width: 640px) {
    .demo-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 48px 24px;
    cursor: zoom-out;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0s linear 0.25s;
}

.lightbox.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.25s ease, visibility 0s linear 0s;
}

.lightbox-content {
    width: 100%;
    max-width: 1280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    cursor: default;
    transform: scale(0.97);
    transition: transform 0.25s ease;
}

.lightbox.is-open .lightbox-content {
    transform: scale(1);
}

.lightbox video {
    width: 100%;
    max-height: calc(100vh - 180px);
    object-fit: contain;
    border-radius: 8px;
    background: var(--bg-secondary);
    transition: opacity 0.15s ease;
}

.lightbox video.is-swapping {
    opacity: 0;
}

.lightbox-caption {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    gap: 10px;
    align-items: baseline;
    justify-content: center;
    transition: opacity 0.15s ease;
}

.lightbox-caption.is-swapping {
    opacity: 0;
}

.lightbox-caption strong {
    color: var(--text-primary);
    font-weight: 500;
}

.lightbox-close,
.lightbox-nav {
    position: absolute;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover,
.lightbox-nav:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.6);
    border-color: var(--text-tertiary);
}

.lightbox-close {
    top: 20px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 22px;
    line-height: 1;
}

.lightbox-nav {
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.lightbox-prev {
    left: 24px;
}

.lightbox-next {
    right: 24px;
}

.lightbox-nav svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.lightbox-nav[hidden] {
    display: none;
}

@media (max-width: 640px) {

    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
    }

    .lightbox-prev {
        left: 12px;
    }

    .lightbox-next {
        right: 12px;
    }
}

/* Publications */
.publications ul {
    list-style: none;
}

.publications li {
    margin-bottom: 8px;
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.publications strong {
    color: var(--text-primary);
    font-weight: 500;
}

.see-more {
    margin-top: 12px;
}

.see-more a {
    color: var(--accent);
    text-decoration: none;
    font-size: 13.5px;
}

/* Links */
a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

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

a:not(.social-links a):not(.bare)::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--accent-hover);
    transform: scaleX(0);
    transform-origin: bottom left;
    transition: transform 0.25s ease-out;
}

a:not(.social-links a):not(.bare):hover::after {
    transform: scaleX(1);
}

/* Footer */
footer {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
}

.social-links a {
    color: var(--text-tertiary);
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links a svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
}

.social-links a:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 56px 20px 48px;
    }

    .profile-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .header-text h1 {
        font-size: 24px;
    }

    .item {
        gap: 10px;
    }

    .item-logo {
        width: 40px;
        height: 40px;
    }

    .social-links {
        gap: 14px;
    }
}

html {
    scroll-behavior: smooth;
}

::selection {
    background-color: var(--accent);
    color: var(--bg-primary);
}

/* Float-in on first load */
@media (prefers-reduced-motion: no-preference) {

    .container>header,
    .container>main>section,
    .container>footer {
        opacity: 0;
        animation: floatIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    }

    .container>header {
        animation-delay: 60ms;
    }

    .container>main>section:nth-child(1) {
        animation-delay: 160ms;
    }

    .container>main>section:nth-child(2) {
        animation-delay: 250ms;
    }

    .container>main>section:nth-child(3) {
        animation-delay: 340ms;
    }

    .container>main>section:nth-child(4) {
        animation-delay: 430ms;
    }

    .container>main>section:nth-child(5) {
        animation-delay: 520ms;
    }

    .container>footer {
        animation-delay: 610ms;
    }
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}