/* Palette and layout primitives. System fonts avoid third-party requests. */
:root {
  color-scheme: light;
  --bg: #f6f5f1;
  --surface: #eeede7;
  --card: #f6f5f1;
  --text: #202633;
  --muted: #596170;
  --accent: #254fc0;
  --accent-soft: #e5eafa;
  --line: #d4d7df;
  --button-text: #ffffff;
  --code-bg: #eeede7;
  --code-comment: #59675e;
  --code-keyword: #6738a0;
  --code-string: #176746;
  --code-number: #954419;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #171b24; --surface: #212735; --card: #171b24;
    --text: #eff1f7; --muted: #b4bdcf; --accent: #a8bfff;
    --accent-soft: #26334f; --line: #3d475d; --button-text: #17213a;
    --code-bg: #212735; --code-comment: #afbbb1; --code-keyword: #d6b0f7;
    --code-string: #a8bfff; --code-number: #f1ba8d;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171b24; --surface: #212735; --card: #171b24;
  --text: #eff1f7; --muted: #b4bdcf; --accent: #a8bfff;
  --accent-soft: #26334f; --line: #3d475d; --button-text: #17213a;
  --code-bg: #212735; --code-comment: #afbbb1; --code-keyword: #d6b0f7;
  --code-string: #a8bfff; --code-number: #f1ba8d;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
::selection { color: var(--text); background: var(--accent-soft); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
main:focus { outline: none; }
button, select { font: inherit; }
img, svg { max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; }
h1, h2, h3 { line-height: 1.16; font-weight: 650; }
h1 { font-size: clamp(2.5rem, 5vw, 4.2rem); letter-spacing: -.055em; }
h2 { font-size: clamp(1.8rem, 3vw, 2.65rem); letter-spacing: -.045em; margin-bottom: 1.2rem; }
h3 { font-size: 1.2rem; letter-spacing: -.025em; }
p { margin-bottom: 1.2rem; }
.container { width: min(1120px, calc(100% - 6rem)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 1rem; z-index: 10; padding: .75rem 1rem; background: var(--accent); color: var(--button-text); }
.skip-link:focus { top: 1rem; }
.accent { color: var(--accent); }
.muted, .muted-heading { color: var(--muted); }
.eyebrow { color: var(--accent); font: .73rem/1.5 ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace; text-transform: uppercase; letter-spacing: .09em; }
.text-link { font-weight: 600; }
.text-link span { display: inline-block; margin-left: .4rem; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 2.5rem; min-height: 100px; }
.brand { display: flex; align-items: center; gap: .9rem; color: var(--text); text-decoration: none; font-size: .92rem; font-weight: 650; white-space: nowrap; }
.brand-mark { font: bold 1.55rem/1 ui-monospace, monospace; letter-spacing: -.12em; padding-right: .1em; }
.brand-mark span { color: var(--accent); }
.header-inner nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 1.6rem; list-style: none; padding: 0; margin: 0; }
.nav-list a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: .86rem; text-decoration: none; }
.nav-list a:hover, .nav-list a[aria-current] { color: var(--accent); text-decoration: underline; text-underline-offset: .5rem; }
/* Reserve selector space before JS initializes to avoid a header layout shift. */
.theme-control[hidden] { display: flex !important; visibility: hidden; }
.theme-control { display: flex; align-items: center; gap: .4rem; }
.theme-control label { font-size: .75rem; color: var(--muted); }
.theme-control select { background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 5px; min-height: 44px; max-width: 100%; padding: .25rem .4rem; font-size: .8rem; cursor: pointer; }
.hero { display: grid; grid-template-columns: 1fr 2.3fr; align-items: start; gap: 3rem; padding: 6rem 0 7rem; }
.hero-label { margin-top: 1.5rem; }
.hero h1 { margin: 0 0 2rem; font-size: clamp(4.5rem, 10vw, 8.5rem); font-weight: 400; line-height: .94; letter-spacing: -.065em; }
.hero-description { max-width: 37rem; color: var(--muted); font-size: 1.05rem; line-height: 1.8; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.7rem; margin-top: 1.9rem; font-size: .9rem; }
.button { display: inline-flex; justify-content: space-between; align-items: center; gap: 1.6rem; min-height: 48px; padding: .8rem 1.15rem; background: var(--accent); color: var(--button-text); font-weight: 600; text-decoration: none; border-radius: 0; }
.button:hover { box-shadow: 0 3px 0 var(--line); }
.section { padding: 4.5rem 0; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; margin-bottom: 2.3rem; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > .text-link { flex-shrink: 0; font-size: .85rem; }
.about-section { display: grid; grid-template-columns: 1fr 1.65fr; gap: 5rem; }
.about-copy { max-width: 43rem; }
.about-copy .text-link { font-size: .9rem; }
.project-grid { display: grid; grid-template-columns: 1fr; }
.project-card { display: grid; grid-template-columns: 1fr 2fr; gap: .75rem 3rem; padding: 2.5rem 0; border-top: 1px solid var(--line); }
.project-top { grid-column: 1; display: flex; flex-direction: column; align-items: flex-start; gap: .75rem; }
.project-top .eyebrow { font-size: .7rem; }
.project-number { font: .75rem ui-monospace, monospace; color: var(--muted); }
.project-card h3, .project-card p, .project-card .tags { grid-column: 2; }
.project-card h3 { grid-row: 1; width: 100%; font-size: 1.5rem; overflow-wrap: anywhere; }
.project-card h3 a { display: flex; justify-content: space-between; gap: .8rem; color: var(--text); text-decoration: none; min-height: 30px; }
.project-card h3 a:hover { color: var(--accent); text-decoration: underline; }
.project-card h3 span { color: var(--accent); }
.project-card p { font-size: .88rem; color: var(--muted); margin-bottom: 1.7rem; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; padding: 0; margin: 0; }
.tags li { background: var(--accent-soft); color: var(--accent); border-radius: 3px; padding: .2rem .55rem; font: .68rem/1.5 ui-monospace, monospace; }
.project-card .tags { margin-top: .25rem; }
.interests-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.interest-group { min-width: 0; }
.interest-group p { color: var(--muted); font-size: .9rem; }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { border-top: 1px solid var(--line); padding: 1.8rem 0; }
.post-list time { font: .75rem/1.7 ui-monospace, monospace; color: var(--muted); }
.post-list h3 { font-size: 1.4rem; margin: .55rem 0 .6rem; }
.post-list h3 a { color: var(--text); text-decoration: none; }
.post-list h3 a:hover { color: var(--accent); text-decoration: underline; }
.post-list h3 span { font-size: 1rem; color: var(--accent); }
.post-list p { max-width: 48rem; color: var(--muted); font-size: .95rem; margin: 0; }
.empty-state { color: var(--muted); padding-block: 1rem; }
.contact-section { padding-block: 4.8rem 5.5rem; }
.contact-section p:not(.eyebrow) { color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); padding: 2.3rem 0; font-size: .75rem; color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.footer-inner p { margin: 0; }
.footer-note { display: block; font-size: .7rem; margin-top: .3rem; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer-inner a { display: inline-flex; align-items: center; min-height: 28px; color: var(--muted); }
/* Shared long-form content and technical articles. */
.page-header { padding-block: 4.5rem 3.5rem; max-width: 50rem; }
.page-header h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-bottom: 1.2rem; }
.page-header > p:not(.eyebrow) { color: var(--muted); }
.blog-archive { padding-bottom: 5rem; min-height: 35vh; }
.blog-archive > h2 { font-size: 1.1rem; }
.page-content, .post-content { max-width: 760px; margin: 4rem auto 5rem; }
.page-content { min-height: 45vh; }
.article-header { margin-bottom: 2.5rem; }
.article-header h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); margin-block: 1.3rem; overflow-wrap: anywhere; }
.post-meta { display: flex; flex-wrap: wrap; gap: .6rem; font-size: .8rem; color: var(--muted); }
.prose { overflow-wrap: break-word; font-size: 1.06rem; line-height: 1.85; }
.prose h2, .prose h3, .prose h4 { margin: 2.2rem 0 1rem; }
.prose h2 { font-size: 1.75rem; }
.prose h3 { font-size: 1.35rem; }
.prose li { margin-block: .4rem; }
.prose blockquote { margin-inline: 0; padding: .5rem 1.3rem; border-left: 3px solid var(--accent); color: var(--muted); }
.prose blockquote p:last-child { margin-bottom: 0; }
.prose img { display: block; border-radius: 5px; }
.prose pre { margin: 0; padding: 1.2rem; overflow-x: auto; border: 1px solid var(--line); border-radius: 5px; background: var(--code-bg); font-size: .85rem; line-height: 1.7; tab-size: 2; }
.prose .highlight { margin: 1.5rem 0; }
.prose .highlight pre, .prose pre.highlight { margin: 0; }
.prose code { font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace; }
.prose :not(pre) > code { padding: .15em .35em; border-radius: 3px; background: var(--code-bg); font-size: .88em; overflow-wrap: anywhere; }
.prose pre code { white-space: pre; }
.prose table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 1.8rem 0; font-size: .9rem; }
.prose th, .prose td { text-align: left; padding: .65rem .9rem; border: 1px solid var(--line); }
.prose th { background: var(--surface); font-weight: 650; }
.post-navigation { display: flex; flex-direction: column; align-items: flex-start; gap: .9rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: .9rem; }
/* Rouge tokens inherit the theme's high-contrast colors. */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cp, .highlight .cs { color: var(--code-comment); font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt, .highlight .kc, .highlight .ow { color: var(--code-keyword); }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sr, .highlight .ss, .highlight .sx { color: var(--code-string); }
.highlight .m, .highlight .mi, .highlight .mf, .highlight .mh, .highlight .mo, .highlight .il { color: var(--code-number); }
.highlight .nf, .highlight .nb, .highlight .nc, .highlight .nt, .highlight .na { color: var(--accent); }
.highlight .gd { color: var(--code-number); }
.highlight .gi { color: var(--code-string); }
@media (max-width: 1000px) {
  .container { width: calc(100% - 4rem); }
  .header-inner { gap: 1.4rem; }
  .nav-list { gap: 1rem; }
  .brand { gap: .6rem; }
  .hero { gap: 2.5rem; padding-block: 4rem; }
  .project-card { padding-block: 2rem; }
  .project-top { flex-wrap: wrap; }
  .about-section { gap: 2.5rem; }
  .footer-inner { align-items: flex-start; }
}
@media (max-width: 760px) {
  .container { width: calc(100% - 2.5rem); }
  .header-inner { flex-wrap: wrap; justify-content: space-between; gap: .4rem 1rem; padding-block: 1rem .6rem; }
  .header-inner nav { order: 3; width: 100%; margin: .3rem 0 0; }
  .nav-list { justify-content: space-between; gap: .6rem; }
  .theme-control { margin-left: auto; }
  .theme-control label { font-size: .7rem; }
  .hero { grid-template-columns: 1fr; gap: 2.5rem; padding-block: 3rem; }
  .hero h1 { font-size: clamp(4.5rem, 18vw, 7rem); }
  .hero-label { margin: 0; }
  .section { padding-block: 3rem; }
  .about-section { grid-template-columns: 1fr; gap: .7rem; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 1rem; margin-bottom: 1.8rem; }
  .interests-grid { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 1fr; gap: .5rem; padding-block: 2rem; }
  .project-card h3, .project-card p, .project-card .tags { grid-column: 1; }
  .project-card h3 { grid-row: auto; }
  .project-top { flex-direction: row; align-items: center; gap: 1rem; }
  .project-top { margin-bottom: 1.3rem; }
  .project-card p { max-width: 38rem; }
  .contact-section { padding-bottom: 3.5rem; }
  .contact-section br { display: none; }
  .footer-inner { flex-direction: column; gap: 1rem; }
  .footer-inner nav { gap: 1rem; }
  .page-header { padding-block: 3rem 2.5rem; }
  .page-content, .post-content { margin-block: 2.5rem 3.5rem; }
  .prose { font-size: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .project-card:hover, .project-card:focus-within { transform: none; }
}
@media print {
  .site-header, .site-footer, .skip-link, .hero-actions, .post-navigation { display: none; }
  :root, :root[data-theme] { --bg: #fff; --text: #000; --muted: #333; --accent: #174c43; color-scheme: light; }
  .container { width: 100%; }
  .section { break-inside: avoid; padding-block: 1.5rem; }
  a { color: inherit; }
  .hero { display: block; padding-block: 1rem; }
}