/* A quiet notebook, with one very curious crab. */
:root {
  color-scheme: light;
  --paper: #f6f5f0;
  --surface: #fffefa;
  --ink: #222725;
  --muted: #606760;
  --line: #d8dbd2;
  --accent: #d34e31;
  --tint: #e9ede3;
  --art: #edece4;
  --focus: #a52d16;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #171c1a;
  --surface: #202623;
  --ink: #f0f2e9;
  --muted: #aeb8af;
  --line: #3c463e;
  --accent: #f18363;
  --tint: #27342a;
  --art: #242b26;
  --focus: #ffb59a;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --paper: #171c1a;
    --surface: #202623;
    --ink: #f0f2e9;
    --muted: #aeb8af;
    --line: #3c463e;
    --accent: #f18363;
    --tint: #27342a;
    --art: #242b26;
    --focus: #ffb59a;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
::selection { background: var(--accent); color: var(--paper); }
[hidden] { display: none !important; }
.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; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 10; transform: translateY(-150%); padding: 10px 20px; background: var(--ink); color: var(--paper); }
.skip-link:focus { transform: none; }
.site-header, main, .site-footer { max-width: 1248px; margin-inline: auto; padding-inline: 40px; }
.site-header { height: 104px; display: flex; align-items: center; border-bottom: 1px solid var(--line); gap: 36px; }
.wordmark { font-family: Arial, sans-serif; font-size: 31px; font-weight: 800; letter-spacing: -1.8px; line-height: 1; }
.wordmark span { color: var(--accent); }
.site-header nav { display: flex; gap: 24px; margin-left: auto; font-size: 15px; font-weight: 600; }
.site-header nav a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 8px 6px; }
.site-header nav a:hover { color: var(--accent); }
.theme-toggle { width: 44px; height: 44px; flex-shrink: 0; background: transparent; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .moon { display: none; }
[data-theme="dark"] .theme-toggle .moon { display: block; }
[data-theme="dark"] .theme-toggle .sun { display: none; }
.hero { min-height: 550px; padding-block: 60px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 60px; align-items: center; }
.eyebrow { margin: 0 0 24px; font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 1.2px; color: var(--muted); }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 8px; background: var(--accent); border-radius: 50%; }
h1 { margin: 0; font-size: clamp(34px, 3.5vw, 52px); line-height: 1.45; font-weight: 760; letter-spacing: -2.4px; }
.accent-word { color: var(--accent); position: relative; white-space: nowrap; }
.accent-word svg { position: absolute; width: 100%; height: 12px; left: 0; bottom: -11px; overflow: visible; }
.accent-word path { stroke: var(--accent); stroke-width: 3; stroke-linecap: round; fill: none; }
.hero-intro { margin: 26px 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.hero-intro strong { font-weight: 500; color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; gap: 18px; padding: 12px 20px; border: 1px solid transparent; border-radius: 4px; font-size: 15px; font-weight: 500; }
.button-dark { background: var(--ink); color: var(--paper); }
.button-outline { border-color: var(--line); background: var(--surface); }
.button-outline:hover { border-color: var(--ink); }
.button:hover { transform: translateY(-2px); }
.button span { font-size: 21px; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: 12px; font-size: 14px; font-weight: 500; border-bottom: 1px solid transparent; }
.text-link:hover { border-color: currentColor; }
.hero-topics { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 26px 0 0; list-style: none; }
.hero-topics li { padding: 5px 10px; border: 1px solid var(--line); border-radius: 20px; color: var(--muted); font-size: 12px; }
.hero-art { position: relative; color: var(--ink); background: var(--art); border-radius: 2px; padding: 20px 16px 18px; transform: rotate(2deg); }
.art-label { padding: 0 8px; font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 1px; color: var(--muted); }
.crab { display: block; width: 100%; margin-block: -8px -5px; }
.orbit { stroke: var(--line); stroke-width: 1; }
.orbit.inner { stroke-dasharray: 3 7; }
.crab-legs { stroke: var(--accent); stroke-width: 13; stroke-linecap: round; stroke-linejoin: round; }
.crab-arms { stroke: var(--accent); stroke-width: 16; stroke-linecap: round; stroke-linejoin: round; }
.crab-fill { fill: var(--accent); }
.body { stroke: var(--paper); stroke-width: 5; }
.eye-stems { stroke: var(--ink); stroke-width: 8; stroke-linecap: round; }
.eye { fill: var(--ink); }
.smile { stroke: var(--ink); stroke-width: 5; stroke-linecap: round; }
.crop-marks { stroke: var(--muted); stroke-width: 1; }
.art-caption { display: flex; justify-content: space-between; gap: 8px; padding-inline: 8px; color: var(--muted); font: 9px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.section-divider { border-top: 1px solid var(--line); padding-block: 17px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 12px; }
.section { padding-block: 82px; scroll-margin-top: 25px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 32px; }
.section-heading .eyebrow, .about .eyebrow { margin-bottom: 14px; }
h2 { margin: 0; font-size: 36px; font-weight: 650; line-height: 1.5; letter-spacing: -1.5px; }
.small-dot { color: var(--accent); }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 24px 0; }
.filters button { min-height: 44px; padding: 8px 17px; border: 1px solid var(--line); background: transparent; font-size: 14px; border-radius: 24px; }
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.filters button:hover { border-color: var(--ink); }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.project-card { position: relative; min-width: 0; display: flex; flex-direction: column; padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 5px; transition: border-color .2s, transform .2s; }
.project-card:hover, .project-card:focus-within { border-color: var(--muted); transform: translateY(-3px); }
.project-card.featured { background: var(--tint); }
.card-top { display: flex; align-items: center; gap: 16px; }
.project-number { color: var(--muted); font: 11px ui-monospace, SFMono-Regular, Menlo, monospace; }
.tag { color: var(--muted); font-size: 12px; }
.card-arrow { margin-left: auto; color: var(--muted); font-size: 20px; }
.network-sketch { display: flex; align-items: center; justify-content: center; flex: 1; min-height: 162px; margin-block: 22px; color: var(--muted); }
.network-sketch span { border: 1px solid var(--line); background: var(--surface); border-radius: 3px; padding: 18px 12px; font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.network-sketch span:nth-of-type(2) { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.network-sketch i { position: relative; flex: 1; max-width: 35px; height: 1px; background: var(--muted); }
.network-sketch i::after { content: ""; position: absolute; top: -3px; right: 0; width: 6px; height: 6px; border-top: 1px solid var(--muted); border-right: 1px solid var(--muted); transform: rotate(45deg); }
h3 { margin: 25px 0 12px; font: 600 21px/1.45 Arial, sans-serif; letter-spacing: -.5px; overflow-wrap: anywhere; }
.project-card h3 a::after { content: ""; position: absolute; inset: 0; }
.project-card h3 a:focus-visible { outline-offset: 7px; }
.project-card h3 a:focus-visible::after { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 5px; }
.project-card h3 { font-family: inherit; font-size: 23px; }
.project-card p { margin: 0 0 18px; font-size: 15px; color: var(--ink); line-height: 1.85; }
.project-card .project-repo { margin-bottom: 20px; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.project-card .project-detail { color: var(--muted); }
.card-bottom { display: flex; flex-wrap: wrap; gap: 8px 14px; padding-top: 14px; margin-top: auto; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.library, .bookmarks, .notes, .socials, .journey { border-top: 1px solid var(--line); }
.bookmark-search { max-width: 680px; margin-bottom: 16px; }
.bookmark-search label { display: block; margin-bottom: 9px; font-size: 13px; font-weight: 600; }
.bookmark-search-controls { display: flex; gap: 10px; }
.bookmark-search input { min-width: 0; width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--ink); font: inherit; font-size: 13px; }
.bookmark-search input::placeholder { color: var(--muted); }
.bookmark-clear { flex-shrink: 0; padding: 10px 17px; border: 1px solid var(--line); border-radius: 4px; background: transparent; font-size: 13px; }
.bookmark-clear:disabled { opacity: .45; cursor: default; }
.bookmark-status, .bookmark-empty { color: var(--muted); font-size: 12px; }
.bookmark-tree { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 24px 0 0; list-style: none; align-items: start; }
.bookmark-tree > .bookmark-group { min-width: 0; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); }
.bookmark-folder summary { padding: 16px 18px; cursor: pointer; font-size: 14px; font-weight: 600; overflow-wrap: anywhere; }
.bookmark-folder summary:hover { color: var(--accent); }
.bookmark-count { float: right; margin-left: 12px; color: var(--muted); font: 11px/2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.bookmark-folder ul { margin: 0; padding: 0 18px 12px; list-style: none; }
.bookmark-folder .bookmark-folder { border-top: 1px solid var(--line); }
.bookmark-folder .bookmark-folder summary { padding: 12px 0; font-size: 13px; }
.bookmark-folder .bookmark-folder ul { padding: 0 0 8px 12px; }
.bookmark-item { border-top: 1px solid var(--line); }
.bookmark-item a { display: block; padding: 12px 0; overflow-wrap: anywhere; }
.bookmark-name { display: block; font-size: 13px; line-height: 1.75; }
.bookmark-domain { display: block; margin-top: 4px; color: var(--muted); font-size: 10px; }
.bookmark-item a:hover .bookmark-name { color: var(--accent); }
.library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 24px; }
.library-card { min-width: 0; padding: 25px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); }
.library-card .eyebrow { font-size: 9px; letter-spacing: .8px; }
.library-card h3 { margin-top: 0; font-family: inherit; font-size: 20px; }
.library-card > p:not(.eyebrow) { color: var(--muted); font-size: 13px; line-height: 1.85; }
.repository-links { display: flex; flex-wrap: wrap; gap: 10px 16px; padding: 0; margin: 24px 0 0; list-style: none; }
.repository-links li { min-width: 0; }
.repository-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: 14px; overflow-wrap: anywhere; text-decoration: underline; text-underline-offset: 4px; }
.repository-links a:hover { color: var(--accent); }
.library-more { margin-top: 24px; }
.library-more h3 { font-family: inherit; font-size: 18px; }
.library-more .repository-links { margin-top: 8px; }
.career-timeline { padding: 0; margin: 0; list-style: none; }
.career-timeline li { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 35px; padding: 24px 0; border-top: 1px solid var(--line); }
.career-timeline li:last-child { border-bottom: 1px solid var(--line); }
.career-period { margin: 4px 0 0; color: var(--muted); font: 12px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; }
.career-timeline h3 { margin: 0 0 8px; font-family: inherit; font-size: 20px; }
.career-timeline li > div > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.section-description { margin: 0 0 4px; font-size: 15px; color: var(--muted); line-height: 1.85; }
.writing-link { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 25px 0; border-top: 1px solid var(--line); }
.writing-link:last-child { border-bottom: 1px solid var(--line); }
.writing-link > div { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.channel-index { color: var(--muted); font: 11px ui-monospace, SFMono-Regular, Menlo, monospace; }
.channel-title { min-width: 170px; font-size: 20px; font-weight: 500; }
.channel-description { color: var(--muted); font-size: 12px; }
.writing-arrow { font-size: 28px; transition: transform .2s; }
.writing-link:hover .writing-arrow { transform: translate(3px, -3px); }
.writing-link:hover .channel-title { color: var(--accent); }
.social-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 16px; margin-top: 28px; }
.social-card { min-width: 0; padding: 28px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); }
.social-card h3 { margin: 16px 0; font-family: inherit; font-size: 24px; }
.social-account { color: var(--muted); font-size: 13px; }
.social-account-id { display: block; margin-top: 8px; color: var(--ink); font-size: 22px; font-weight: 600; letter-spacing: 1px; overflow-wrap: anywhere; user-select: text; }
.social-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 24px; }
.copy-account { padding: 10px 15px; border: 1px solid var(--line); border-radius: 4px; background: transparent; font-size: 12px; }
.copy-account:hover { border-color: var(--ink); }
.copy-account:disabled { opacity: .6; cursor: wait; }
.social-status { min-height: 2em; margin: 18px 0 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 65px; border-top: 1px solid var(--line); padding-bottom: 100px; }
.about-copy { padding-top: 36px; }
.about-copy p { margin: 0 0 18px; color: var(--muted); font-size: 14px; line-height: 1.95; }
.about-signature { display: flex; align-items: center; justify-content: space-between; margin-top: 35px; gap: 20px; }
.about-signature > span { font: italic 30px/1.5 Georgia, serif; letter-spacing: -1.5px; }
.site-footer { display: flex; align-items: center; gap: 35px; border-top: 1px solid var(--line); padding-block: 32px; font-size: 11px; color: var(--muted); }
.site-footer .wordmark { color: var(--ink); font-size: 24px; }
.site-footer p { margin: 0; }
.site-footer > a:last-child { margin-left: auto; }
@media (max-width: 1000px) {
  .hero { gap: 35px; min-height: 560px; padding-block: 66px; }
  h1 { font-size: 36px; letter-spacing: -1.5px; }
  .art-caption { font-size: 8px; }
  .art-caption span:last-child { display: none; }
  .project-card { padding: 24px; }
  h3 { font-size: 18px; }
  .project-grid { grid-template-columns: 1fr; }
  .about { gap: 40px; }
}
@media (max-width: 720px) {
  html { scroll-padding-top: 24px; }
  .site-header, main, .site-footer { padding-inline: 24px; }
  .site-header { height: auto; min-height: 112px; padding-block: 12px; flex-wrap: wrap; gap: 8px 16px; }
  .wordmark { font-size: 27px; }
  .site-header nav { order: 2; width: 100%; justify-content: space-between; gap: 8px; margin-left: 0; font-size: 14px; }
  .site-header nav a { flex: 1; }
  .theme-toggle { margin-left: auto; }
  .hero { position: relative; display: block; min-height: 0; padding-block: 36px 40px; }
  .hero-copy .eyebrow { display: flex; align-items: center; max-width: calc(100% - 112px); min-height: 78px; font-size: 12px; margin-bottom: 12px; letter-spacing: .3px; }
  .status-dot { flex-shrink: 0; }
  h1 { font-size: clamp(29px, 8.7vw, 36px); line-height: 1.45; letter-spacing: -1.5px; }
  .hero-intro { font-size: 15px; margin-top: 24px; }
  .hero-art { position: absolute; top: 28px; right: 2px; width: 100px; padding: 8px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .hero-actions .button { gap: 10px; padding-inline: 10px; font-size: 14px; }
  .hero-actions .text-link { justify-self: start; }
  .hero-art .art-label, .hero-art .art-caption { display: none; }
  .hero-topics { margin-top: 18px; }
  .hero-topics li { padding-inline: 8px; }
  .section-divider { font-size: 12px; }
  .section-divider span:last-child { display: none; }
  .section { padding-block: 55px; }
  h2 { font-size: 29px; }
  .section-heading { gap: 18px; }
  .section-heading .text-link { font-size: 14px; gap: 6px; }
  .projects .section-heading { display: block; }
  .projects .section-heading .text-link { margin-top: 12px; }
  .filters { gap: 6px; }
  .filters button { padding: 8px 12px; }
  .project-grid { grid-template-columns: 1fr; gap: 12px; }
  .project-card.featured { grid-row: auto; }
  .project-card { padding: 24px; }
  .network-sketch { min-height: 126px; }
  .library-grid { grid-template-columns: 1fr; }
  .bookmarks .section-heading { display: block; }
  .bookmark-tree { grid-template-columns: 1fr; }
  .library-card { padding: 24px; }
  .career-timeline li { grid-template-columns: 1fr; gap: 10px; }
  .notes .section-heading { display: block; }
  .section-description { margin-top: 14px; font-size: 15px; }
  .writing-link { padding-block: 22px; }
  .writing-link > div { gap: 16px; }
  .channel-title { min-width: 0; font-size: 18px; }
  .channel-description { width: 100%; padding-left: 31px; margin-top: -10px; font-size: 14px; }
  .library-card > p:not(.eyebrow), .career-timeline li > div > p, .about-copy p, .bookmark-search label, .bookmark-clear, .bookmark-name, .social-status { font-size: 15px; }
  .bookmark-search input { font-size: 16px; }
  .bookmark-folder summary { min-height: 44px; font-size: 15px; }
  .bookmark-status, .bookmark-empty, .bookmark-domain, .social-account, .copy-account { font-size: 13px; }
  .copy-account { min-height: 44px; }
  .about { grid-template-columns: 1fr; gap: 15px; padding-bottom: 65px; }
  .about-copy { padding-top: 10px; }
  .site-footer { flex-wrap: wrap; gap: 18px; padding-block: 25px; }
  .site-footer > a:last-child { width: 100%; margin-left: 0; }
}
@media (max-width: 370px) {
  .site-header, main, .site-footer { padding-inline: 18px; }
  .site-header nav { gap: 4px; }
  .hero-topics { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .button:hover, .project-card:hover, .project-card:focus-within, .writing-link:hover .writing-arrow { transform: none; }
}