:root {
    --bg: #f7f5f0;
    --text: #0a0a0a;
    --text-secondary: #686863;
    --accent: #0a0a0a;
    --accent-hover: #3f3f3b;
    --card-bg: #fffefa;
    --card-border: #d8d4cc;
    --divider: #d8d4cc;
    --tag-bg: transparent;
    --badge-bg: #eeeeea;
    --badge-text: #0a0a0a;
}

html {
    scroll-padding-top: 78px;
}

body {
    background: var(--bg);
    color: var(--text);
}

.site-nav {
    position: sticky;
    z-index: 50;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 58px;
    padding: 0 2rem;
    border-bottom: 1px solid var(--text);
    background: rgba(247, 245, 240, 0.93);
    backdrop-filter: blur(14px);
}

.site-nav .nav-name,
.site-nav .nav-links a {
    color: var(--text);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
}

.site-nav .nav-name {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

.site-nav .nav-links {
    display: flex;
    gap: 1.6rem;
}

.site-nav .nav-links a {
    position: relative;
}

.site-nav .nav-links a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -0.35rem;
    left: 0;
    height: 1px;
    background: var(--text);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 180ms ease;
}

.site-nav .nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.site-wrapper {
    max-width: 1160px;
    padding-top: clamp(3rem, 7vw, 6.5rem);
}

.header {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1.75rem;
    margin-bottom: clamp(5rem, 10vw, 8.5rem);
}

.home-hero-copy {
    grid-column: 1 / -1;
    align-self: center;
}

.home-hero-copy h1 {
    max-width: 900px;
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: clamp(1.75rem, 5.3vw, 4.4rem);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 0.92;
    white-space: nowrap;
}

.hero-typing {
    display: block;
    min-height: 2.4em;
    margin-top: 2rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: clamp(0.9rem, 1.45vw, 1.1rem);
    line-height: 1.5;
    color: var(--text-secondary);
}

.typing-cursor {
    display: inline-block;
    width: 0.08em;
    height: 1.05em;
    margin-left: 0.18em;
    background: var(--text);
    vertical-align: -0.08em;
    animation: typing-cursor-blink 0.9s step-end infinite;
}

@keyframes typing-cursor-blink {
    0%, 48% { opacity: 1; }
    49%, 100% { opacity: 0; }
}

.header-top {
    grid-column: 1 / span 3;
    flex-direction: column;
    align-items: flex-start;
    align-self: start;
    gap: 1rem;
    margin-bottom: 0;
}

.header .avatar-wrap,
.header .avatar {
    width: 100%;
}

.header .avatar {
    height: auto;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--text);
    border-radius: 0;
    filter: saturate(0.9) contrast(1.01);
    box-shadow: none;
    transition: filter 200ms ease;
}

.header .avatar:hover {
    filter: saturate(1) contrast(1);
}

.bio-block {
    grid-column: 4 / span 8;
    max-width: 780px;
    margin-top: 0;
}

.header .bio-text {
    font-size: clamp(1.05rem, 1.65vw, 1.32rem);
    line-height: 1.55;
}

.header .bio-text a {
    color: var(--text);
    text-decoration: underline;
    text-decoration-color: #aaa;
    text-underline-offset: 0.18rem;
}

.bio-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem 1.15rem;
    margin-top: 1.5rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--divider);
}

.bio-links a {
    color: var(--text);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 0.25rem;
}

.bio-links a::after {
    content: " ↗";
}

.section-heading {
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: clamp(2rem, 4.2vw, 3.4rem);
    font-weight: 500;
    letter-spacing: -0.045em;
}

#research-section,
#blog-section,
#pub-section,
.pub-card[id],
.blog-card[id] {
    scroll-margin-top: 78px;
}

.research-overview {
    margin-bottom: clamp(5rem, 10vw, 8rem);
}

.research-overview .section-title-row,
.blog-preview .section-title-row {
    padding-top: 1rem;
    border-top: 1px solid var(--text);
}

.research-overview .research-intro {
    max-width: 820px;
    margin: 0 0 2.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

.research-map {
    grid-template-columns: 220px minmax(90px, 1fr) 220px minmax(90px, 1fr) 220px;
    padding: 0;
    border: 0;
    border-top: 1px solid var(--text);
    border-bottom: 1px solid var(--text);
    border-radius: 0;
    background: transparent;
}

.research-stage {
    padding: 1.5rem 0;
}

.research-stage .stage-card {
    width: 100%;
    min-height: 0;
    aspect-ratio: 1 / 1;
    padding: 1rem;
    border: 1px solid var(--text);
    border-radius: 0;
    background: var(--card-bg);
    transition: background 180ms ease, color 180ms ease;
}

.research-stage:hover .stage-card {
    background: var(--text);
    color: #fff;
}

.research-stage:hover .stage-card h3 {
    color: #fff;
}

.research-stage:hover .stage-card img {
    filter: invert(1);
}

.research-connector .flow-label,
.stage-works a,
.pub-card .venue-badge,
.pub-card .meta-link,
.blog-card .blog-meta {
    font-family: "IBM Plex Mono", monospace;
}

.research-stage h3 {
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--text);
}

.stage-visual {
    top: 3.75rem;
    bottom: auto;
    width: 112px;
    height: 112px;
}

.stage-visual img {
    width: 106px;
    height: 106px;
    transition: filter 180ms ease;
}

.stage-label {
    min-height: 52px;
    margin: 1rem 0 0.8rem;
    text-align: center;
    font-size: 1rem;
}

.stage-works {
    display: grid;
    justify-content: stretch;
    gap: 0;
}

.stage-works a {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
    padding: 0.55rem 0;
    border: 0;
    border-top: 1px solid var(--divider);
    border-radius: 0;
    background: transparent;
    color: var(--text);
    font-size: 0.78rem;
}

.stage-works a::after {
    content: "↘";
    color: var(--text);
}

.stage-works a:hover {
    padding-left: 0.35rem;
    border-color: var(--text);
    color: var(--text);
}

.research-connector {
    padding-top: 7rem;
}

.research-connector .flow-label {
    background: transparent;
    font-size: 0.8rem;
}

.research-connector .flow-label.forward {
    top: -0.9rem;
}

.research-connector .flow-label.backward {
    bottom: -0.9rem;
}

.blog-preview {
    margin-bottom: clamp(5rem, 10vw, 8rem);
}

.blog-placeholder {
    display: flex;
    align-items: center;
    min-height: 140px;
    border-top: 1px solid var(--text);
    border-bottom: 1px solid var(--text);
}

.blog-placeholder span {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.blog-list {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 0;
    border-bottom: 1px solid var(--text);
}

.blog-card {
    min-height: 245px;
    padding: 1.5rem 1.5rem 1.5rem 0;
    border: 0;
    border-top: 1px solid var(--text);
    border-radius: 0;
    background: transparent;
}

.blog-card + .blog-card {
    padding-left: 1.5rem;
    border-left: 1px solid var(--text);
}

.blog-card:hover {
    transform: none;
    box-shadow: none;
}

.blog-card .blog-meta {
    margin-bottom: 3.5rem;
    font-size: 0.62rem;
    text-transform: uppercase;
}

.blog-card h3 {
    max-width: 680px;
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: clamp(1.45rem, 2.6vw, 2.35rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.08;
}

.blog-card:hover h3 {
    color: var(--text);
    text-decoration: underline;
    text-decoration-color: var(--text);
    text-underline-offset: 0.35rem;
}

.blog-card p {
    margin-top: 0.75rem;
    font-size: 0.82rem;
}

#pub-section {
    padding-top: 1rem;
    border-top: 1px solid var(--text);
}

.filter-bar {
    display: block;
    margin-bottom: 2rem;
}

.filter-bar .filter-row {
    margin: 0;
}

.filter-bar .filter-row:first-child {
    display: grid;
    grid-template-columns: 1fr repeat(3, auto);
}

.filter-pill {
    padding: 0.3rem 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
}

.filter-pill + .filter-pill {
    margin-left: 1rem;
}

.filter-pill:hover {
    color: var(--text);
}

.filter-pill.active,
.filter-pill.active:hover {
    border-bottom: 1px solid var(--text);
    background: transparent;
    color: var(--text);
}

#pub-card-container {
    gap: 0;
    border-bottom: 1px solid var(--text);
}

.pub-card {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 1.5rem;
    padding: 1.5rem 0;
    border: 0;
    border-top: 1px solid var(--divider);
    border-radius: 0;
    background: transparent;
}

.pub-card:first-child {
    border-color: var(--text);
}

.pub-card:hover {
    transform: none;
    box-shadow: none;
}

.pub-card .card-media {
    width: 160px;
    overflow: hidden;
}

.pub-card .card-media img,
.pub-card .card-media video {
    border-radius: 0;
    filter: none;
    transition: filter 180ms ease;
}

.pub-card:hover .card-media img,
.pub-card:hover .card-media video {
    filter: saturate(1.05);
}

.pub-card .card-title {
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: 1.08rem;
    font-weight: 600;
}

.pub-card .venue-badge,
.pub-card .card-meta a.meta-link {
    border-radius: 0;
}

.pub-card .venue-badge,
a.venue-badge:hover {
    background: var(--text);
    color: #fff;
}

.pub-card .card-meta a.meta-link {
    background: transparent;
    color: var(--text-secondary);
    text-decoration: underline;
    text-underline-offset: 0.2rem;
}

.site-footer {
    margin: 7rem calc(50% - 50vw) -4rem;
    padding: clamp(3rem, 8vw, 6rem) max(2rem, calc((100vw - 1110px) / 2));
    border: 0;
    background: var(--text);
    color: #fff;
    text-align: left;
}

.site-footer.footer-compact {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.footer-title {
    max-width: 820px;
    margin-bottom: 3rem;
    font-family: "Inter Tight", "Inter", sans-serif;
    font-size: clamp(2rem, 5vw, 4.5rem);
    font-weight: 500;
    letter-spacing: -0.045em;
    line-height: 0.98;
}

.footer-meta {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid #666;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
}

.footer-compact .footer-meta {
    padding-top: 0;
    border-top: 0;
}

@media (max-width: 900px) {
    .home-hero-copy { grid-column: 1 / -1; }
    .header-top { grid-column: 1 / span 4; }
    .bio-block { grid-column: 5 / -1; }
    .research-map { grid-template-columns: 190px minmax(60px, 1fr) 190px minmax(60px, 1fr) 190px; }
}

@media (max-width: 760px) {
    html { scroll-padding-top: 104px; }
    .site-nav {
        flex-direction: column;
        align-items: stretch;
        min-height: 88px;
        padding: 0 1.25rem;
    }
    .site-nav .nav-name {
        display: flex;
        align-items: center;
        min-height: 40px;
        white-space: nowrap;
    }
    .site-nav .nav-links {
        justify-content: space-between;
        width: 100%;
        min-height: 44px;
        gap: 0;
    }
    .site-nav .nav-links a {
        display: inline-flex;
        align-items: center;
        min-height: 44px;
        font-size: 0.625rem;
        letter-spacing: 0.08em;
    }
    #research-section,
    #blog-section,
    #pub-section,
    .pub-card[id],
    .blog-card[id] { scroll-margin-top: 104px; }
    .site-wrapper { padding-top: 3rem; }
    .header { display: flex; flex-direction: column; }
    .home-hero-copy {
        align-self: stretch;
        width: 100%;
    }
    .home-hero-copy h1 {
        width: 100%;
        font-size: clamp(1.75rem, 7.2vw, 2rem);
        text-align: center;
    }
    .hero-typing { min-height: 4.5em; }
    .header-top { display: grid; grid-template-columns: 120px 1fr; align-items: center; }
    .bio-block { margin-top: 0; }
    .research-overview .research-intro { margin-left: 0; }
    .research-map {
        grid-template-columns: 1fr;
        padding: 0;
        border: 0;
    }
    .research-stage {
        position: relative;
        padding: 1.25rem;
        border: 1px solid var(--text);
        background: var(--card-bg);
    }
    .research-stage::before {
        content: attr(data-step);
        position: absolute;
        top: 1rem;
        right: 1rem;
        font-family: "IBM Plex Mono", monospace;
        font-size: 0.7rem;
        letter-spacing: 0.08em;
        color: var(--text-secondary);
    }
    .research-stage .stage-card {
        display: grid;
        grid-template-columns: 72px minmax(0, 1fr);
        align-items: center;
        gap: 1rem;
        width: 100%;
        min-height: 0;
        aspect-ratio: auto;
        padding: 0;
        border: 0;
        background: transparent;
    }
    .research-stage:hover .stage-card {
        background: transparent;
        color: var(--text);
    }
    .research-stage:hover .stage-card h3 {
        color: var(--text);
    }
    .research-stage:hover .stage-card img {
        filter: none;
    }
    .research-stage .stage-card h3 {
        grid-column: 2;
        grid-row: 1;
        padding-right: 2rem;
        font-size: 1.5rem;
    }
    .research-stage .stage-visual {
        position: static;
        grid-column: 1;
        grid-row: 1;
        width: 72px;
        height: 72px;
        transform: none;
    }
    .research-stage .stage-visual img {
        width: 68px;
        height: 68px;
    }
    .research-stage .stage-label {
        min-height: 0;
        margin: 0.75rem 0 0;
        text-align: center;
        color: var(--text-secondary);
    }
    .research-stage .stage-works {
        margin-top: 1rem;
    }
    .research-stage .stage-works a {
        min-height: 40px;
        align-items: center;
    }
    .research-connector {
        height: 56px;
        padding: 0;
    }
    .research-connector .flow {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 56px;
        gap: 1rem;
    }
    .research-connector .flow-line {
        display: none;
    }
    .research-connector .flow-label {
        position: static;
        padding: 0;
        background: transparent;
        transform: none;
    }
    .research-connector .flow-label.forward::after {
        content: " ↓";
    }
    .research-connector .flow-label.backward::before {
        content: "↑ ";
    }
    .blog-list { grid-template-columns: 1fr; }
    .blog-card { min-height: 210px; padding: 1.25rem 0; }
    .blog-card + .blog-card { padding-left: 0; border-left: 0; }
    .blog-card .blog-meta { margin-bottom: 2.5rem; }
    .filter-bar { display: block; }
    .filter-bar .filter-row:first-child {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: stretch;
        gap: 0;
    }
    .filter-bar .filter-row:first-child .section-heading {
        grid-column: 1 / -1;
        margin-bottom: 0.75rem;
    }
    .filter-pill,
    .filter-pill + .filter-pill {
        justify-content: center;
        min-height: 44px;
        margin-left: 0;
        font-size: clamp(0.7rem, 3vw, 0.85rem);
        white-space: nowrap;
    }
    .pub-card { grid-template-columns: 1fr; }
    .pub-card .card-media { width: 100%; max-height: 220px; }
    .footer-meta { gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}