/* ===========================================
   UNIFIED VISUAL IDENTITY SYSTEM
   Styled after "Academic Portfolio Astro"
   (github.com/rubzip/academic-portfolio-astro)
   MIT license notice: ../THIRD_PARTY_NOTICES.md
   Ported to plain CSS — no Tailwind required.
   =========================================== */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap");

/* --- Theme Palettes ---------------------------------
   Swap palettes by setting data-palette="notepad" on
   <html>. Light/dark is driven by data-theme.
   ---------------------------------------------------- */

/* light_default */
:root,
html[data-palette="default"] {
    --background: #f9fafb;
    --foreground: #111827;
    --accent: #4d7c0f;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --surface: #f9fafb;
}

/* light_notepad */
html[data-palette="notepad"] {
    --background: #fdf8e9;
    --foreground: #29231c;
    --accent: #b84c30;
    --text-muted: #736658;
    --border: #eaddc6;
    --surface: #fdf8e9;
}

/* dark_default */
html[data-theme="dark"] {
    --background: #1a1f2c;
    --foreground: #eaedf3;
    --accent: #ff6b01;
    --text-muted: #343f60;
    --border: #ab4b08;
    --surface: #1a1f2c;
}

html[data-theme="dark"] .portfolio-tile {
    border-width: 1.5px;
}

/* dark_notepad */
html[data-palette="notepad"][data-theme="dark"] {
    --background: #241f1c;
    --foreground: #e6dfd3;
    --accent: #d97757;
    --text-muted: #8a7d71;
    --border: #3d342d;
    --surface: #241f1c;
}

:root {
    --sidebar-bg: var(--background);
    scrollbar-gutter: stable;
}

/* ===========================================
   RESET & BASE
   =========================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-family: "Inter", system-ui, sans-serif;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--background);
    color: var(--foreground);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===========================================
   TYPOGRAPHY SYSTEM
   =========================================== */

h1,
.title-xl {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--foreground);
    margin: 0;
}

h2,
.title-lg {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
    color: var(--foreground);
    margin: 0;
}

h3,
.title-md {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--foreground);
    margin: 0;
}

p,
.body {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--foreground);
    opacity: 0.92;
    margin: 0;
}

.body-sm {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--foreground);
    opacity: 0.85;
}

.body-xs {
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--foreground);
    opacity: 0.75;
}

code,
.mono {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.5;
}

a,
.link {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 600;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover,
.link:hover {
    color: var(--accent);
    opacity: 1;
}

ul {
    list-style-type: disc;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

ol {
    list-style-type: decimal;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

ul li::marker {
    color: var(--accent);
}

/* ===========================================
   LAYOUT SHELL
   =========================================== */

.layout {
    display: flex;
    margin: 0 auto;
    max-width: 72rem; /* max-w-6xl */
    width: 100%;
    min-height: 100vh;
}

.container-narrow {
    max-width: 800px;
}

/* --- Sidebar --- */

.sidebar {
    width: 280px;
    height: 100vh;
    position: sticky;
    top: 0;
    padding: 4rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    transition: background 0.3s ease;
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.sidebar-avatar {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    transition: border-color 0.3s ease;
}

.sidebar-avatar:hover {
    border-color: var(--accent);
}

.sidebar-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sidebar-name {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--foreground);
    margin: 0;
}

.sidebar-info {
    font-size: 0.85rem;
    color: var(--foreground);
    opacity: 0.7;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.sidebar-bio {
    font-size: 0.9rem;
    color: var(--foreground);
    opacity: 0.8;
    line-height: 1.5;
    padding: 0 0.5rem;
    margin-top: 0.5rem;
}

.sidebar-socials {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin-top: 0.75rem;
}

/* --- Navbar --- */

.navbar {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 1rem;
    background: var(--background);
    transition: background 0.3s ease;
}

.navbar[hidden] {
    display: none;
}

.appearance-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .navbar {
        position: sticky;
        top: 0;
        z-index: 10;
    }
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.nav-links li {
    margin: 0;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--foreground);
    position: relative;
    transition: color 0.2s ease;
    opacity: 0.75;
}

.nav-link:hover {
    opacity: 1;
}

.nav-link.active {
    color: var(--accent);
    opacity: 1;
}

.nav-link-line {
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 4px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.nav-link:hover .nav-link-line,
.nav-link.active .nav-link-line {
    width: 100%;
}

/* --- Main --- */

.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    background: var(--background);
    transition: background 0.3s ease;
}

.main-body {
    padding: 1.5rem 2rem 2rem;
    flex: 1;
}

/* --- Footer --- */

.footer {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--foreground);
    flex-wrap: wrap;
}

.footer-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ===========================================
   PAGE SECTIONS
   =========================================== */

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--foreground);
    margin: 0;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--foreground);
    opacity: 0.75;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.section {
    margin-bottom: 2rem;
    scroll-margin-top: 5rem;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--foreground);
    margin: 0 0 1rem;
}

/* ===========================================
   COMPONENTS
   =========================================== */

/* --- Card (flat list item, no box) --- */

.card {
    padding: 1rem 0;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    justify-content: space-between;
}

.card-content {
    min-width: 0;
}

.card.is-clickable {
    cursor: pointer;
}

.card.is-clickable:hover .card-title {
    color: var(--accent);
    text-decoration: underline;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
    text-decoration: none;
    color: var(--foreground);
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.2s ease;
}

.card-title:hover {
    color: var(--accent);
    text-decoration: underline;
}

.card-meta {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--foreground);
    opacity: 0.75;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
}

/* One logical line of metadata — authors on one row, venue/year on the next */
.meta-row {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.card-meta > span,
.meta-row > span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--foreground);
    opacity: 0.8;
    line-height: 1.5;
}

.card-link {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--foreground);
    white-space: nowrap;
    flex-shrink: 0;
    text-decoration: none;
    transition: color 0.2s ease;
}

.card-link:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* Your own name inside an author list */
.author-self {
    font-weight: 800;
    color: var(--foreground);
}

/* Publication footnote (equal contribution, acceptance status) */
.pub-note {
    font-size: 0.8rem;
    font-style: italic;
    color: var(--foreground);
    opacity: 0.7;
    margin-top: -0.25rem;
    margin-bottom: 0.25rem;
}

.publication-teaser {
    width: 320px;
    height: 200px;
    flex-shrink: 0;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
}

@media (min-width: 769px) {
    #publications-list .card {
        align-items: center;
    }
}

/* --- Tags (accent text, not pills) --- */

.tag {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.tag:hover {
    opacity: 1;
    text-decoration: underline;
}

.tag-list {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

/* --- Buttons --- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: 0.25rem;
    background: transparent;
    color: var(--foreground);
    transition: all 0.2s ease;
    text-decoration: none;
    cursor: pointer;
}

.btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--foreground);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-icon:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--background);
    transform: translateY(-2px);
}

.appearance-controls .btn-icon {
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    opacity: 0.7;
}

.appearance-controls .btn-icon:hover {
    background: color-mix(in srgb, var(--foreground) 8%, transparent);
    color: var(--accent);
    opacity: 1;
    transform: none;
}

.appearance-controls .icon {
    width: 20px;
    height: 20px;
}

/* Sun shows in dark mode, moon in light mode */
html[data-theme="dark"] .icon-moon,
html:not([data-theme="dark"]) .icon-sun {
    display: none;
}

/* --- Social links --- */

.social-link {
    display: inline-flex;
    padding: 0.125rem;
    color: var(--foreground);
    opacity: 0.75;
    transition: all 0.3s ease;
}

.social-link:hover {
    opacity: 1;
    color: var(--accent);
    transform: rotate(6deg);
}

.social-link .icon {
    width: 28px;
    height: 28px;
}

/* --- Timeline --- */

.timeline {
    display: flex;
    flex-direction: column;
}

.timeline-item {
    display: flex;
    gap: 2rem;
}

.timeline-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.timeline-marker .dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 0.5rem;
    z-index: 1;
}

.timeline-line {
    flex: 1;
    width: 2px;
    background: var(--border);
    margin: 0.5rem 0;
}

.timeline-item:last-child .timeline-line {
    display: none;
}

.timeline-content {
    padding-bottom: 2rem;
    flex: 1;
    min-width: 0;
}

.timeline-content .entry-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.25rem;
}

.timeline-period {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.75;
    white-space: nowrap;
}

.timeline-subtitle {
    font-size: 0.95rem;
    line-height: 1.65;
    font-weight: 600;
    opacity: 0.9;
}

/* --- Item list --- */

.item-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* --- Dividers --- */

.divider {
    border: none;
    border-top: 1px dashed var(--border);
    margin: 2rem 0;
}

.divider-solid {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

/* --- Back link --- */

.back-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--foreground);
    opacity: 0.7;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.back-link:hover {
    opacity: 1;
}

/* --- Icons --- */

.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    stroke-width: 1.5px;
}

.icon-sm {
    width: 14px;
    height: 14px;
}

.icon-md {
    width: 18px;
    height: 18px;
}

.icon-lg {
    width: 24px;
    height: 24px;
}

.icon-muted {
    opacity: 0.7;
}

/* ===========================================
   PORTFOLIO
   =========================================== */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.portfolio-tile {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.portfolio-tile:hover {
    color: var(--foreground);
    border-color: var(--accent);
    transform: translateY(-3px);
}

.portfolio-cover {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #111827;
    border-bottom: 1px solid var(--border);
}

.portfolio-tile-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1.25rem;
}

.portfolio-cover-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: var(--surface);
    color: var(--foreground);
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.7;
    border-bottom-style: dashed;
}

.portfolio-date {
    display: block;
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.7;
}

.portfolio-post .portfolio-date {
    margin-top: 0.75rem;
}

.portfolio-tile-title {
    font-size: 1.15rem;
}

.portfolio-tile .card-desc {
    font-weight: 400;
}

.portfolio-read {
    margin-top: auto;
    padding-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent);
}

.portfolio-back {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.portfolio-back[hidden] {
    display: none;
}

.portfolio-outline,
.section-outline {
    width: 100%;
    min-height: 0;
    overflow-y: auto;
    text-align: center;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.portfolio-outline ul,
.section-outline ul {
    list-style: none;
    margin: 0;
    padding: 0 0.25rem;
}

.portfolio-outline li,
.section-outline li {
    margin: 0;
}

.portfolio-outline a,
.section-outline a {
    display: block;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    overflow-wrap: anywhere;
}

.portfolio-outline a[aria-current="location"],
.section-outline a[aria-current="location"] {
    font-weight: 700;
}

.section-outline .nav-link {
    color: var(--foreground);
    opacity: 1;
}

.section-outline .nav-link:hover {
    color: var(--accent);
}

@media (min-width: 1025px) {
    .sidebar:has(.portfolio-outline:not([hidden]), .section-outline) .sidebar-inner {
        /* Subtract the sidebar's top padding and gap from the one-third position. */
        min-height: calc(100vh / 3 - 5.5rem);
        flex-shrink: 0;
    }
}

.portfolio-post .prose h2 {
    scroll-margin-top: 5rem;
}

.portfolio-post .page-header .tag-list {
    margin-bottom: 1rem;
}

.portfolio-post .prose figure {
    margin: 1.5rem 0 2rem;
}

.portfolio-post .prose .portfolio-media-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0 2rem;
}

.portfolio-post .prose .portfolio-media-pair figure {
    min-width: 0;
    margin: 0;
}

.portfolio-post .prose figure img,
.portfolio-post .prose figure video,
.portfolio-post .prose figure .umi-example-frame {
    display: block;
    margin: 0 0 0.5rem;
}

.umi-example-frame {
    width: 100%;
    height: auto;
    overflow: hidden;
    border-radius: 0.25rem;
}

.portfolio-post .prose video {
    max-height: 75vh;
    background: #111827;
}

.portfolio-post figcaption {
    font-size: 0.8rem;
    line-height: 1.5;
    opacity: 0.75;
}

.recording-panel-map {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    margin: 1rem 0 2rem;
}

.recording-panel-map td {
    border: 1px solid var(--border);
    padding: 0.75rem 0.5rem;
    text-align: center;
    vertical-align: middle;
    overflow-wrap: anywhere;
    font-size: 0.85rem;
    line-height: 1.5;
}

.portfolio-bottom-link {
    display: inline-block;
    margin-top: 1.5rem;
}

@media (max-width: 640px) {
    .portfolio-grid,
    .portfolio-post .prose .portfolio-media-pair {
        grid-template-columns: minmax(0, 1fr);
    }
}

/* ===========================================
   ROBOT VIEWERS
   =========================================== */

.section-lede {
    margin-top: -0.5rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.viewer {
    margin: 0;
}

.viewer-stage {
    position: relative;
    aspect-ratio: 4 / 3;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    overflow: hidden;
}

.viewer-stage canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
    touch-action: pan-y pinch-zoom; /* preserve page scrolling and zoom on touch */
}

.viewer-stage canvas:active {
    cursor: grabbing;
}

/* Shown only if the viewer never initialised (no WebGL, CDN blocked) */
.viewer-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1.5rem;
    font-size: 0.85rem;
    opacity: 0.7;
    margin: 0;
}

.viewer--ready .viewer-fallback,
.viewer--loading .viewer-fallback {
    display: none;
}

/* Loading shimmer while the GLB link meshes download */
.viewer--loading .viewer-stage::after {
    content: 'Loading model…';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    opacity: 0.6;
}

.viewer--ready .viewer-stage canvas,
.viewer--failed .viewer-stage canvas {
    opacity: 1;
}

.viewer--failed .viewer-stage canvas {
    display: none;
}

.rollout-empty {
    grid-column: 1 / -1;
    padding: 3rem 1.5rem;
    border: 1px dashed var(--border);
    border-radius: 0.5rem;
    text-align: center;
}

.rollout-video {
    margin: 0;
    min-width: 0;
}

.rollout-video video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #111827;
    border-radius: 0.25rem;
}

.rollout-video figcaption {
    padding-top: 0.75rem;
}

.rollout-video h2 {
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

/* ===========================================
   FORMS
   =========================================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.contact-details p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.85;
}

.form-group input,
.form-group textarea {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.25rem;
    background: var(--surface);
    color: var(--foreground);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* ===========================================
   PROSE (Content Typography)
   =========================================== */

.prose {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--foreground);
}

.prose h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin: 2rem 0 1rem;
}

.prose h2 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 1.5rem 0 0.75rem;
}

.prose h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 1.25rem 0 0.5rem;
}

.prose p {
    margin-bottom: 1rem;
}

.prose ul,
.prose ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.prose li {
    margin-bottom: 0.5rem;
}

.prose ul li::marker,
.prose ol li::marker {
    color: var(--accent);
    font-weight: 800;
}

.prose a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.prose code {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.85em;
    font-weight: 500;
    background: var(--surface);
    color: var(--accent);
    padding: 0.15rem 0.3rem;
    border-radius: 0.2rem;
}

.prose pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.25rem;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.prose pre code {
    background: transparent;
    color: var(--foreground);
    padding: 0;
}

.prose img {
    max-width: 100%;
    height: auto;
    border-radius: 0.25rem;
    margin: 1rem 0;
}

.prose video {
    width: 100%;
    border-radius: 0.25rem;
    margin: 1rem 0;
}

.prose blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
    margin: 1rem 0;
    opacity: 0.85;
    font-style: italic;
}

.prose hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

/* ===========================================
   BLOG MODAL
   =========================================== */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal:not(.active) {
    display: none;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 0.25rem;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 2.5rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.blog-post-meta {
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0.75;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin: 0.5rem 0 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed var(--border);
}

.blog-post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .modal {
        padding: 0.75rem;
    }

    .modal-content {
        padding: 1.5rem;
    }
}

/* ===========================================
   UTILITIES
   =========================================== */

.loading,
.error {
    font-size: 0.9rem;
    opacity: 0.7;
    padding: 1rem 0;
}

.error {
    color: var(--accent);
    opacity: 1;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===========================================
   ACCESSIBILITY & ANIMATION
   =========================================== */

*:focus-visible {
    outline: 2px dashed var(--accent);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -4rem;
    left: 1rem;
    z-index: 3000;
    padding: 0.75rem 1rem;
    color: var(--foreground);
    background: var(--background);
}

.skip-link:focus {
    top: 1rem;
}

.animate-in {
    animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================================
   RESPONSIVE
   =========================================== */

@media (max-width: 1024px) {
    .layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        padding: 1rem;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .sidebar-inner {
        flex-direction: row;
        text-align: left;
        gap: 1rem;
        align-items: center;
        min-width: 0;
        width: 100%;
    }

    .sidebar-text {
        align-items: flex-start;
        min-width: 0;
    }

    .sidebar-socials {
        justify-content: flex-start;
        gap: 0;
    }

    .sidebar-socials .appearance-controls {
        gap: 0;
        margin-left: 0.25rem;
    }

    .sidebar-avatar {
        width: 112px;
        height: 112px;
        flex-shrink: 0;
    }

    .portfolio-outline,
    .section-outline {
        display: none;
    }

    .main-body {
        padding: 1rem 1.5rem;
    }

    .main-content {
        width: 100%;
        flex: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
    }

    .sidebar-inner {
        gap: 0.75rem;
    }

    .sidebar-avatar {
        width: 80px;
        height: 80px;
    }

    .sidebar-name {
        font-size: 1.25rem;
    }

    .sidebar-bio {
        display: none;
    }

    .main-body {
        padding: 0.75rem 1rem;
        overflow-wrap: anywhere;
    }

    .prose p {
        font-size: 1rem;
    }

    .navbar {
        padding: 0.5rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .nav-links {
        flex: 1 1 100%;
        gap: 0.25rem 0.5rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .nav-link-line {
        bottom: 0;
    }

    .card {
        flex-direction: column;
        gap: 0.75rem;
    }

    .publication-teaser {
        width: 100%;
        height: auto;
    }

    .footer {
        padding: 1.5rem 1rem;
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 1024px), (pointer: coarse) {
    .btn,
    .btn-icon,
    .social-link,
    .nav-link,
    .portfolio-outline a,
    .back-link,
    a.portfolio-read {
        min-height: 44px;
        min-width: 44px;
    }

    .social-link,
    .nav-link,
    .portfolio-outline a,
    .back-link,
    a.portfolio-read {
        display: inline-flex;
        align-items: center;
    }

    .social-link {
        justify-content: center;
    }

    .back-link[hidden] {
        display: none;
    }
}