/* ==========================================================================
   Pixel arcade theme — single stylesheet for the whole site.
   Theme states: :root = light · prefers-color-scheme dark = dark ·
   [data-theme] overrides the system preference either way.
   ========================================================================== */

:root {
    /* --- light (default) --- */
    --bg-color: #fff4cf;
    --section-bg: #fff9e8;
    --card-bg: #fffdf3;
    --text-color: #241b14;
    --muted-color: #7b6653;
    --accent-color: #ff6b35;
    --secondary-color: #2f80ed;
    --border-color: #241b14;
    --shadow-color: #241b14;

    --pixel-yellow: #ffd166;
    --pixel-green: #39b982;
    --pixel-pink: #ff7aa2;
    --pixel-purple: #8f6cff;

    --chip-blue: #dff6ff;
    --chip-pink: #ffd6e4;
    --chip-green: #ddffd9;
    --chip-text: #241b14;
    --on-accent: #fff9e8;
    --on-chip-accent: #c2410c;
    --highlight: var(--pixel-yellow);

    --grid-line: rgba(36, 27, 20, 0.06);
    --dot-color: rgba(255, 107, 53, 0.16);
    --scanline-color: rgba(255, 255, 255, 0.08);

    --code-keyword: #2f80ed;
    --code-string: #d94f30;
    --code-comment: #6f8f3f;
    --code-function: #946200;
    --code-variable: #0d6b75;
    --code-number: #397b44;
    --code-operator: #241b14;
    --code-class: #7b3ff2;

    --pixel-shadow: 6px 6px 0 var(--shadow-color);
    --pixel-shadow-small: 4px 4px 0 var(--shadow-color);
    --pixel-radius: 0px;
}

/* --- dark palette, applied to system-dark unless light is forced --- */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-color: #161221;
        --section-bg: #241f33;
        --card-bg: #2c2640;
        --text-color: #f0e7d6;
        --muted-color: #a99cc0;
        --accent-color: #ff8354;
        --secondary-color: #7bb0ff;
        --border-color: #0a0812;
        --shadow-color: #0a0812;

        --pixel-yellow: #f2c14e;
        --pixel-green: #45c08d;
        --pixel-pink: #f27a9e;
        --pixel-purple: #9b7bff;

        --chip-blue: #7fc4e8;
        --chip-pink: #f0a2be;
        --chip-green: #a2d9ab;
        --chip-text: #16121f;
        --on-accent: #16121f;
        --on-chip-accent: #c2410c;
        --highlight: rgba(242, 193, 78, 0.32);

        --grid-line: rgba(255, 255, 255, 0.045);
        --dot-color: rgba(255, 131, 84, 0.18);
        --scanline-color: rgba(0, 0, 0, 0.22);

        --code-keyword: #8ab4ff;
        --code-string: #ff9d7a;
        --code-comment: #9dc46a;
        --code-function: #e0b352;
        --code-variable: #5ec8d8;
        --code-number: #7fd18f;
        --code-operator: #f0e7d6;
        --code-class: #b99bff;
    }
}

/* --- dark forced by the toggle --- */
:root[data-theme="dark"] {
    --bg-color: #161221;
    --section-bg: #241f33;
    --card-bg: #2c2640;
    --text-color: #f0e7d6;
    --muted-color: #a99cc0;
    --accent-color: #ff8354;
    --secondary-color: #7bb0ff;
    --border-color: #0a0812;
    --shadow-color: #0a0812;

    --pixel-yellow: #f2c14e;
    --pixel-green: #45c08d;
    --pixel-pink: #f27a9e;
    --pixel-purple: #9b7bff;

    --chip-blue: #7fc4e8;
    --chip-pink: #f0a2be;
    --chip-green: #a2d9ab;
    --chip-text: #16121f;
    --on-accent: #16121f;
    --on-chip-accent: #c2410c;
    --highlight: rgba(242, 193, 78, 0.32);

    --grid-line: rgba(255, 255, 255, 0.045);
    --dot-color: rgba(255, 131, 84, 0.18);
    --scanline-color: rgba(0, 0, 0, 0.22);

    --code-keyword: #8ab4ff;
    --code-string: #ff9d7a;
    --code-comment: #9dc46a;
    --code-function: #e0b352;
    --code-variable: #5ec8d8;
    --code-number: #7fd18f;
    --code-operator: #f0e7d6;
    --code-class: #b99bff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'JetBrains Mono', 'Source Code Pro', monospace;
    line-height: 1.65;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image:
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        radial-gradient(circle at 18px 18px, var(--dot-color) 2px, transparent 3px);
    background-size: 24px 24px, 24px 24px, 72px 72px;
    margin: 0;
    padding: 28px 16px 48px;
    transition: background-color 0.25s ease, color 0.25s ease;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        var(--scanline-color) 0,
        var(--scanline-color) 1px,
        transparent 1px,
        transparent 4px
    );
    mix-blend-mode: multiply;
    opacity: 0.45;
    z-index: 0;
}

.wrapper {
    width: 100%;
    max-width: 920px;
    margin: 0 auto;
    padding: 0;
    position: relative;
    z-index: 1;
}

/* ---- Nav ---- */

.pixel-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin: 0 auto 22px;
    padding: 12px 14px;
    background: var(--section-bg);
    border: 3px solid var(--border-color);
    box-shadow: var(--pixel-shadow-small);
}

.pixel-brand {
    color: var(--text-color);
    font-weight: 800;
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

.pixel-brand::before {
    content: "▣ ";
    color: var(--accent-color);
}

.pixel-nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.pixel-nav-links a,
.social a,
.publication-links a,
.pixel-btn {
    color: var(--chip-text);
    text-decoration: none;
    background: var(--pixel-yellow);
    border: 2px solid var(--border-color);
    box-shadow: 3px 3px 0 var(--shadow-color);
    padding: 7px 10px;
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.pixel-nav-links a:hover,
.social a:hover,
.publication-links a:hover,
.pixel-btn:hover {
    transform: translate(3px, 3px);
    box-shadow: 0 0 0 var(--shadow-color);
    background: var(--accent-color);
    color: var(--on-accent);
    text-decoration: none;
}

.pixel-nav-links a.active {
    background: var(--accent-color);
    color: var(--on-accent);
}

/* ---- Header / player card ---- */

.header-section {
    width: 100%;
    max-width: 920px;
    margin: 0 auto 34px;
    padding: 24px;
    background: var(--section-bg);
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr) 170px;
    align-items: start;
    gap: 22px;
    border: 4px solid var(--border-color);
    box-shadow: var(--pixel-shadow);
    animation: pixelPop 0.38s steps(3, end);
}

.header-section::before {
    content: "PLAYER CARD";
    position: absolute;
    left: 16px;
    top: -16px;
    background: var(--accent-color);
    color: var(--on-accent);
    border: 3px solid var(--border-color);
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    box-shadow: 3px 3px 0 var(--shadow-color);
}

.visitor-map-header {
    min-width: 150px;
    max-width: 170px;
    height: 132px;
    margin: 10px 0 0;
    padding: 8px;
    background: var(--chip-blue);
    border: 3px solid var(--border-color);
    box-shadow: 4px 4px 0 var(--shadow-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: visible;
}

.visitor-map-header::before {
    content: "VISITORS";
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    font-size: 0.62rem;
    font-weight: 800;
    background: var(--pixel-green);
    color: var(--chip-text);
    border: 2px solid var(--border-color);
    padding: 2px 5px;
    line-height: 1;
    pointer-events: none;
    white-space: nowrap;
}

.visitor-map-inner {
    width: 100%;
    height: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.visitor-map-inner #mapmyvisitors,
.visitor-map-inner iframe,
.visitor-map-inner a,
.visitor-map-inner img,
.visitor-map-inner canvas,
.visitor-map-inner > div {
    max-width: 100% !important;
    border: none;
    transform: translateY(18px) scale(1.08) !important;
    transform-origin: center center;
    image-rendering: pixelated;
}

.profile-img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 0;
    border: 4px solid var(--border-color);
    box-shadow: 5px 5px 0 var(--shadow-color);
    image-rendering: auto;
    transition: transform 0.14s ease, box-shadow 0.14s ease;
    background: var(--pixel-yellow);
}

.profile-img:hover {
    transform: translate(4px, 4px);
    box-shadow: 1px 1px 0 var(--shadow-color);
}

.header-content {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
}

.header-section h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin: 0;
    color: var(--text-color);
    letter-spacing: -0.06em;
    line-height: 0.95;
    text-transform: uppercase;
    text-shadow: 3px 3px 0 var(--pixel-yellow);
}

.header-section h1 a { color: inherit; text-decoration: none; }

.header-section h1 a:hover { color: var(--accent-color); text-decoration: none; }

.header-section .title {
    display: inline-block;
    width: fit-content;
    font-size: 0.92rem;
    color: var(--chip-text);
    margin: 0;
    padding: 8px 10px;
    background: var(--chip-blue);
    border: 2px solid var(--border-color);
    box-shadow: 3px 3px 0 var(--shadow-color);
    font-weight: 700;
}

.header-section .title::before {
    content: "STATUS: ";
    color: var(--on-chip-accent);
    font-weight: 900;
}

.hero-line {
    margin: 0;
    max-width: 580px;
    color: var(--muted-color);
    font-size: 0.9rem;
    font-weight: 700;
}

.social {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
    justify-content: flex-start;
}

.social a {
    background: var(--section-bg);
    color: var(--text-color);
    font-size: 0.76rem;
}

/* ---- Layout ---- */

main { display: grid; gap: 30px; }

section {
    width: 100%;
    max-width: 920px;
    margin: 0 auto;
    background: var(--section-bg);
    padding: 30px;
    border-radius: 0;
    border: 4px solid var(--border-color);
    box-shadow: var(--pixel-shadow);
    animation: pixelPop 0.38s steps(3, end);
    position: relative;
}

section::before {
    content: attr(id);
    position: absolute;
    top: -15px;
    left: 18px;
    padding: 3px 9px;
    color: var(--chip-text);
    background: var(--pixel-yellow);
    border: 3px solid var(--border-color);
    box-shadow: 3px 3px 0 var(--shadow-color);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

section:nth-of-type(2n)::before { background: var(--chip-blue); }
section:nth-of-type(3n)::before { background: var(--chip-pink); }

footer {
    width: 100%;
    max-width: 920px;
    margin: 34px auto 0;
    padding: 18px 20px;
    background: var(--section-bg);
    color: var(--text-color);
    font-size: 0.85rem;
    border-radius: 0;
    border: 4px solid var(--border-color);
    box-shadow: var(--pixel-shadow-small);
    position: relative;
}

h2 {
    color: var(--text-color);
    border-bottom: 4px solid var(--border-color);
    padding: 0 0 12px;
    margin: 0 0 22px;
    position: relative;
    text-align: left;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    letter-spacing: -0.04em;
    text-transform: uppercase;
}

h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 74px;
    height: 4px;
    background: var(--accent-color);
}

h2 .code-comment {
    color: var(--accent-color);
    opacity: 1;
    margin-right: 8px;
    font-style: normal;
}

p { margin-top: 0; }

a {
    color: var(--secondary-color);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
    font-weight: 700;
}

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

strong { color: var(--code-keyword); }

em { color: var(--code-string); font-style: normal; font-weight: 700; }

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

@keyframes pixelPop {
    from { opacity: 0; transform: translate(8px, 8px); }
    to { opacity: 1; transform: translate(0, 0); }
}

ul { padding-left: 0; list-style: none; margin: 0; }

ul ul { margin-top: 10px; padding-left: 18px; }

ul ul li { margin-bottom: 8px; }

ul.social li { padding-left: 0; margin-bottom: 0; }

ul.social li::before,
.header-content ul li::before { content: ""; display: none; }

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

.publication-item,
ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 16px;
}

.publication-item::before,
ul li::before {
    content: "▶";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    top: 0.1em;
    opacity: 1;
    font-size: 0.85em;
}

.publication-item {
    padding: 18px 18px 18px 32px;
    border: 3px solid var(--border-color);
    background: var(--card-bg);
    box-shadow: 4px 4px 0 var(--shadow-color);
    margin-bottom: 18px;
}

.publication-item::before { left: 12px; top: 20px; }

.publication-item p { margin-bottom: 12px; }

.publication-links {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.publication-links a {
    margin: 0;
    padding: 7px 9px;
    font-size: 0.76rem;
    background: var(--chip-blue);
}

.publication-links a:nth-child(2n) { background: var(--chip-pink); }
.publication-links a:nth-child(3n) { background: var(--chip-green); }

.publication-links a::before { content: ""; display: none; }

.publication-item strong a {
    color: var(--code-keyword);
    text-decoration: none;
    position: relative;
    display: inline;
    background-image: linear-gradient(var(--highlight), var(--highlight));
    background-size: 100% 0.36em;
    background-position: 0 88%;
    background-repeat: no-repeat;
}

.publication-item strong a:hover { color: var(--accent-color); text-decoration: none; }

.publication-item strong a::before {
    content: "DOI";
    font-size: 0.65em;
    color: var(--chip-text);
    opacity: 1;
    position: absolute;
    top: -1.15em;
    right: -1.2em;
    background: var(--pixel-green);
    padding: 1px 4px;
    border: 2px solid var(--border-color);
    display: none;
    box-shadow: 2px 2px 0 var(--shadow-color);
}

.publication-item strong a:hover::before { display: inline-block; }

.pub-category {
    display: inline-block;
    margin: 26px 0 16px;
    padding: 6px 12px;
    background: var(--pixel-purple);
    color: var(--on-accent);
    border: 3px solid var(--border-color);
    box-shadow: 3px 3px 0 var(--shadow-color);
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.pub-category-note {
    display: block;
    margin: -8px 0 16px;
    color: var(--muted-color);
    font-size: 0.8rem;
    font-weight: 700;
}

.award-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--pixel-yellow);
    color: var(--chip-text);
    border: 2px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--shadow-color);
    padding: 2px 7px;
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    vertical-align: middle;
}

.award-badge .fa-trophy { color: var(--on-chip-accent); }

/* ---- Projects ---- */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 26px 22px;
    margin-top: 26px;
}

.project-card,
.blog-card {
    background: var(--card-bg);
    border: 3px solid var(--border-color);
    box-shadow: 5px 5px 0 var(--shadow-color);
    padding: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.project-card::before,
.blog-card::before {
    content: attr(data-label);
    position: absolute;
    top: -13px;
    left: 14px;
    background: var(--pixel-yellow);
    border: 2px solid var(--border-color);
    color: var(--chip-text);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 2px 7px;
    box-shadow: 2px 2px 0 var(--shadow-color);
    white-space: nowrap;
}

.project-card:hover,
.blog-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0 var(--shadow-color);
}

.project-card h3,
.blog-card h3 {
    margin: 6px 0 8px;
    font-size: 0.98rem;
    line-height: 1.35;
}

.project-card h3 a,
.blog-card h3 a {
    color: var(--code-keyword);
    text-decoration: none;
    background-image: linear-gradient(var(--highlight), var(--highlight));
    background-size: 100% 0.32em;
    background-position: 0 90%;
    background-repeat: no-repeat;
}

.project-card h3 a:hover,
.blog-card h3 a:hover { color: var(--accent-color); }

.project-card p,
.blog-card p {
    margin: 0 0 12px;
    font-size: 0.83rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0;
}

.project-tags span {
    background: var(--pixel-green);
    color: var(--chip-text);
    border: 2px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--shadow-color);
    padding: 1px 7px;
    font-size: 0.66rem;
    font-weight: 700;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 14px;
}

.card-actions a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--chip-text);
    background: var(--pixel-pink);
    border: 2px solid var(--border-color);
    box-shadow: 3px 3px 0 var(--shadow-color);
    padding: 6px 9px;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-size: 0.7rem;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card-actions a.secondary { background: var(--chip-blue); }

.card-actions a:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--shadow-color);
    color: var(--chip-text);
    text-decoration: none;
}

.project-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--chip-blue);
    color: var(--chip-text);
    border: 2px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--shadow-color);
    padding: 3px 9px;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}

/* ---- Blog ---- */

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 0 0 10px;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--muted-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-meta .venue-tag {
    background: var(--pixel-purple);
    color: var(--on-accent);
    border: 2px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--shadow-color);
    padding: 2px 7px;
}

.blog-post-header { margin-bottom: 20px; }

.blog-post-header h2 { text-transform: none; letter-spacing: -0.02em; }

.blog-prose h2 {
    border-bottom: none;
    font-size: 1.2rem;
    margin: 26px 0 12px;
    text-transform: none;
}

.blog-prose h2::after { display: none; }

.blog-prose h3 { color: var(--accent-color); font-size: 1.02rem; margin: 20px 0 10px; }

.blog-prose ul li { margin-bottom: 10px; }

.blog-prose ol { padding-left: 22px; margin: 0 0 14px; }

.blog-prose ol li { margin-bottom: 8px; }

.blog-prose blockquote {
    margin: 16px 0;
    padding: 12px 16px;
    background: var(--bg-color);
    border: 3px solid var(--border-color);
    box-shadow: 4px 4px 0 var(--shadow-color);
    font-size: 0.9rem;
}

.blog-prose blockquote p { margin: 0; }

.blog-prose code {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 1px 5px;
    font-size: 0.85em;
}

.blog-back-link { margin-top: 24px; }

/* ---- Theme switch / back to top ---- */

.theme-switch-wrapper {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--section-bg);
    padding: 7px 10px;
    border-radius: 0;
    border: 3px solid var(--border-color);
    box-shadow: 4px 4px 0 var(--shadow-color);
}

.theme-switch {
    display: inline-block;
    height: 26px;
    position: relative;
    width: 52px;
}

.theme-switch input { display: none; }

.slider {
    background-color: var(--pixel-yellow);
    border: 3px solid var(--border-color);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .14s;
    border-radius: 0;
}

.slider:before {
    background-color: var(--accent-color);
    bottom: 3px;
    content: "";
    height: 14px;
    left: 3px;
    position: absolute;
    transition: .14s;
    width: 14px;
    border-radius: 0;
    border: 2px solid var(--border-color);
}

input:checked + .slider { background-color: var(--chip-blue); }

input:checked + .slider:before {
    transform: translateX(24px);
    background-color: var(--secondary-color);
}

.theme-icon { color: var(--text-color); font-size: 14px; opacity: 1; }

#backToTop {
    position: fixed;
    bottom: 22px;
    right: 22px;
    background: var(--accent-color);
    color: var(--on-accent);
    width: 44px;
    height: 44px;
    border-radius: 0;
    border: 3px solid var(--border-color);
    box-shadow: 4px 4px 0 var(--shadow-color);
    cursor: pointer;
    display: none;
    font-size: 22px;
    font-weight: 900;
    z-index: 1200;
}

#backToTop:hover {
    transform: translate(3px, 3px);
    box-shadow: 1px 1px 0 var(--shadow-color);
}

/* ---- Syntax-ish accents ---- */

.code-keyword { color: var(--code-keyword); font-weight: bold; }
.code-string { color: var(--code-string); }
.code-comment { color: var(--code-comment); font-style: italic; }
.code-function { color: var(--code-function); }
.code-variable { color: var(--code-variable); }
.code-number { color: var(--code-number); }
.code-operator { color: var(--code-operator); }
.code-class { color: var(--code-class); }

/* ---- Responsive ---- */

@media (max-width: 900px) {
    body { padding: 18px 12px 42px; }

    .header-section {
        grid-template-columns: 112px minmax(0, 1fr);
        padding: 22px 18px;
    }

    .visitor-map-header {
        grid-column: 1 / -1;
        width: 100%;
        max-width: none;
        height: 185px;
    }

    .profile-img { width: 104px; height: 104px; }

    .theme-switch-wrapper {
        position: sticky;
        margin-left: auto;
        width: fit-content;
    }
}

@media (max-width: 640px) {
    .pixel-nav { align-items: flex-start; flex-direction: column; }

    .pixel-nav-links { justify-content: flex-start; }

    .header-section { grid-template-columns: 1fr; gap: 18px; }

    .profile-img { width: 96px; height: 96px; }

    section, footer { padding: 24px 18px; }

    .card-grid { grid-template-columns: 1fr; }

    .publication-links { gap: 8px; }

    .publication-links a,
    .social a,
    .pixel-nav-links a { font-size: 0.72rem; }
}