:root {
  --accent-base: #00008b;
  --accent: var(--accent-base);
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --hand: "Patrick Hand", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --bg: #fdfdfd;
  --fg: #111;
  --fg-soft: #424242;
  --muted: #68706b;
  --border: #e5e5e5;
  --thumb-bg: #eee;
  --code-bg: #f2f2f2;
  --invert-bg: #111;
  --invert-fg: #fff;
  --grid-line: color-mix(in srgb, var(--fg) 5%, transparent);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --accent: color-mix(in srgb, var(--accent-base) 45%, white 55%);
  --bg: #15171a;
  --fg: #e8e8e8;
  --fg-soft: #cfcfcf;
  --muted: #9aa39c;
  --border: #2c2f33;
  --thumb-bg: #23262a;
  --code-bg: #1d2023;
  --invert-bg: #e8e8e8;
  --invert-fg: #111;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body, h1, h2, h3, p, ul { margin: 0; padding: 0; }
body { font: 400 16px/1.55 var(--sans); color: var(--fg); background: var(--bg); -webkit-text-size-adjust: 100%; transition: background-color .15s ease, color .15s ease; }
:root[data-font="hand"] body { font-family: var(--hand); font-size: 19px; }
h1, h2, h3, p, ul { margin-bottom: 15px; }
img { max-width: 100%; vertical-align: middle; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--fg); text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; text-decoration: none; }
.wrapper { width: 100%; max-width: 900px; margin: 0 auto; padding: 0 30px; }
.site-header { position: relative; z-index: 1; background: var(--bg); border-top: 5px solid var(--fg-soft); border-bottom: 1px solid var(--border); min-height: 61px; }
.site-header .wrapper { max-width: 1100px; }
.site-header .wrapper { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.site-title { color: var(--fg-soft); font-size: 23px; font-weight: 400; line-height: 56px; letter-spacing: -.8px; white-space: nowrap; flex-shrink: 0; }
.site-nav { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.nav-links { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.nav-utility { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-toggle { display: none; position: relative; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: 1px solid var(--border); border-radius: 50%; background: var(--bg); color: var(--fg-soft); cursor: pointer; transition: border-color .15s ease, color .15s ease; }
.nav-toggle:hover, .nav-toggle:focus-visible { border-color: var(--accent); color: var(--accent); }
.nav-toggle svg { display: block; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) rotate(0deg); opacity: 1; transition: opacity .2s ease, transform .25s ease; }
.nav-toggle .icon-close { opacity: 0; transform: translate(-50%, -50%) rotate(-90deg); }
.nav-toggle.is-open .icon-menu { opacity: 0; transform: translate(-50%, -50%) rotate(90deg); }
.nav-toggle.is-open .icon-close { opacity: 1; transform: translate(-50%, -50%) rotate(0deg); }
.page-link { color: var(--fg); padding-bottom: 3px; border-bottom: 1px solid transparent; text-decoration: none; transition: color .15s ease, border-color .15s ease; }
.page-link:hover { color: var(--accent); border-bottom-color: var(--accent); text-decoration: none; }
.page-link.is-current { color: var(--accent); border-bottom-color: var(--accent); }
.nav-cv, .footer-cv { display: inline-block; background: var(--invert-bg); color: var(--invert-fg) !important; padding: 7px 12px; line-height: 1; text-decoration: none !important; }
.nav-cv:hover, .footer-cv:hover { background: var(--accent); color: var(--invert-fg); }
.lang-switch { display: flex; align-items: center; gap: 8px; }
.lang-link { font: 12px var(--mono); letter-spacing: .04em; padding-bottom: 0; }
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: 1px solid var(--border); border-radius: 50%; background: var(--bg); color: var(--fg-soft); cursor: pointer; transition: border-color .15s ease, color .15s ease, background-color .15s ease; }
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { display: block; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

.bg-toggle { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: 1px solid var(--border); border-radius: 50%; background: var(--bg); color: var(--fg-soft); cursor: pointer; transition: border-color .15s ease, color .15s ease; }
.bg-toggle:hover, .bg-toggle:focus-visible { border-color: var(--accent); color: var(--accent); }
.bg-toggle svg { display: none; }
.bg-toggle .icon-bg-none { display: block; }
:root[data-bg="grid"] .bg-toggle .icon-bg-none { display: none; }
:root[data-bg="grid"] .bg-toggle .icon-bg-grid { display: block; }
:root[data-bg="dots"] .bg-toggle .icon-bg-none { display: none; }
:root[data-bg="dots"] .bg-toggle .icon-bg-dots { display: block; }

.font-toggle { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: 1px solid var(--border); border-radius: 50%; background: var(--bg); color: var(--fg-soft); cursor: pointer; transition: border-color .15s ease, color .15s ease; }
.font-toggle:hover, .font-toggle:focus-visible { border-color: var(--accent); color: var(--accent); }
.font-toggle.is-active { border-color: var(--accent); color: var(--accent); }

:root[data-bg="grid"] body {
  background-image: linear-gradient(to right, var(--grid-line) 1px, transparent 1px), linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
}
:root[data-bg="dots"] body {
  background-image: radial-gradient(var(--grid-line) 1.4px, transparent 1.4px);
  background-size: 22px 22px;
}

.page-content { padding: 40px 0; min-height: 60vh; }
.profile { display: flex; align-items: center; justify-content: center; gap: 25px; margin-bottom: 34px; }
.profile-photo { width: 160px; height: 160px; object-fit: cover; border-radius: 50%; }
.small { font-size: 15px; }
.intro-text { font-size: 18px; margin-bottom: 25px; }
.about-text { max-width: 720px; font-size: 17px; line-height: 1.65; }
.about-text p { margin-bottom: 18px; }
.section-title { font-size: 21px; font-weight: 600; border-bottom: 1px solid var(--border); padding-bottom: 8px; margin: 42px 0 15px; }
.section-title.no-rule { border-bottom: none; padding-bottom: 0; }
.page-title { font-size: 32px; margin-bottom: 5px; }
.page-intro { color: var(--muted); margin-bottom: 30px; }
.page-heading { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 35px; }
.page-heading .page-intro { margin-bottom: 0; }
.page-count { color: var(--muted); font: 12px/1.5 var(--mono); letter-spacing: .04em; }
.item-list { background: var(--bg); border-top: 1px solid var(--border); }
.item { display: grid; grid-template-columns: 180px 1fr; gap: 24px; padding: 24px 10px; border-bottom: 1px solid var(--border); }
.item.item-no-image { grid-template-columns: 1fr; padding-left: 0; padding-right: 0; }
.item-thumb { width: 180px; height: 120px; object-fit: cover; border-radius: 3px; background: var(--thumb-bg); transition: opacity .2s; }
.item > a:hover .item-thumb { opacity: .82; }
.item-title { min-width: 0; font-size: 18px; font-weight: bold; }
.item-heading { display: flex; justify-content: space-between; gap: 15px; align-items: baseline; }
.item-heading > span { color: var(--muted); font: 12px var(--mono); }
.item-desc { color: var(--fg); font-size: 15px; margin: 4px 0; }
.item-role { color: var(--muted); font: 12px var(--mono); letter-spacing: .03em; margin: 9px 0 0; }
.item-role span { color: var(--fg); margin-left: 8px; }
.item-tags, .post-date { color: var(--muted); font-size: 13px; margin: 6px 0; }
.item-links { margin: 4px 0 0; }
.item-links:empty { display: none; }
.item-links a { font-size: 14px; margin-right: 12px; }
.more-link { margin-top: 20px; }
.blog-list { background: var(--bg); border-top: 1px solid var(--border); }
.blog-item { padding: 20px 10px; border-bottom: 1px solid var(--border); }
.blog-item h2, .blog-item h3 { margin-bottom: 6px; }
.blog-item h2 { font-size: 22px; }
.blog-item h3 { font-size: 18px; }
.blog-item p { margin-bottom: 8px; }
.writing-list { background: var(--bg); border-top: 1px solid var(--border); }
.writing-item, .entry-row { display: grid; grid-template-columns: 105px minmax(0, 1fr) 30px; gap: 22px; align-items: start; padding: 22px 10px; border-bottom: 1px solid var(--border); }
.writing-item.writing-with-image { grid-template-columns: 112px 92px minmax(0, 1fr) 30px; }
.writing-item .entry-thumb-link { grid-column: 1; }
.writing-item .entry-thumb, .entry-row .entry-thumb { width: 112px; height: 76px; object-fit: cover; border-radius: 3px; background: var(--thumb-bg); }
.writing-item.writing-with-image time { grid-column: 2; }
.writing-item.writing-with-image > div { grid-column: 3; min-width: 0; }
.writing-item.writing-with-image > .writing-arrow { grid-column: 4; }
.writing-item time, .entry-row time { color: var(--muted); font: 12px/1.5 var(--mono); padding-top: 4px; }
.writing-topic { color: var(--muted); font: 12px/1.5 var(--mono); letter-spacing: .03em; text-transform: uppercase; margin-bottom: 5px !important; }
.writing-item h2, .writing-item h3 { line-height: 1.3; margin-bottom: 7px; }
.writing-item h2 { font-size: 21px; }
.writing-item h3 { font-size: 18px; }
.writing-item div > p:last-child, .entry-row div > p:not(.writing-topic) { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.entry-row h2 { font-size: 20px; line-height: 1.3; margin-bottom: 7px; }
.entry-technologies { color: var(--muted) !important; font-size: 13px !important; margin-top: 7px !important; }
.writing-arrow { color: var(--fg); font-size: 22px; line-height: 1; transition: transform .2s; }
.writing-item:hover .writing-arrow { transform: translateX(4px); }
.writing-page { margin-bottom: 50px; }
.section-intro { color: var(--muted); margin: -7px 0 22px; }
.recent-list { background: var(--bg); border-top: 1px solid var(--border); }
.archive-year { background: var(--bg); display: grid; grid-template-columns: 90px 1fr; border-top: 1px solid var(--border); padding: 24px 0; }
.archive-year > h2 { font-size: 18px; margin: 0; }
.archive-item { grid-column: 2; display: grid; grid-template-columns: 65px 1fr 24px; gap: 15px; padding: 15px 0; border-bottom: 1px solid var(--border); }
.archive-item time, .archive-item p { color: var(--muted); font: 12px/1.5 var(--mono); margin: 0; text-transform: uppercase; }
.archive-item h3 { font-size: 17px; margin: 3px 0 0; }
.content-page { max-width: 720px; margin: 0 auto; }
.article-content { font-size: 17px; line-height: 1.7; margin-top: 40px; }
.article-content h2 { font-size: 24px; margin: 38px 0 12px; }
.article-content h3 { font-size: 19px; margin-top: 28px; }
.article-content pre { overflow-x: auto; background: var(--code-bg); padding: 16px; border: 1px solid var(--border); }
.article-content code { font-family: monospace; background: var(--code-bg); padding: 2px 4px; }
.article-content pre code { padding: 0; }
.article-content blockquote { color: var(--muted); border-left: 3px solid var(--border); margin: 25px 0; padding-left: 18px; }
.comments { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.topic-list { display: flex; flex-wrap: nowrap; gap: 10px; overflow-x: auto; padding-bottom: 10px; margin-bottom: 6px; scrollbar-width: thin; }
.topic-list::-webkit-scrollbar { height: 5px; }
.topic-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.topic-list::-webkit-scrollbar-track { background: transparent; }
.topic-pill { flex-shrink: 0; white-space: nowrap; font: 13px var(--sans); padding: 6px 14px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg); color: var(--fg-soft); cursor: pointer; transition: border-color .15s ease, color .15s ease; }
.topic-pill:hover, .topic-pill:focus-visible { border-color: var(--accent); color: var(--accent); }
.paper-badge { display: inline-block; font: 12px var(--mono); letter-spacing: .03em; border: 1px solid var(--accent); color: var(--accent); padding: 3px 10px; border-radius: 4px; margin: 6px 0 2px; text-decoration: none !important; }
.paper-badge:hover { background: var(--accent); color: var(--invert-fg); }
.about-page .page-intro { max-width: 650px; font-size: 19px; line-height: 1.55; }
.about-section { margin-top: 42px; }
.about-section h2 { border-bottom: 1px solid var(--border); padding-bottom: 7px; }
.project-hero { width: 100%; max-height: 400px; object-fit: cover; margin: 25px 0; border-radius: 3px; }
.site-footer { background: var(--bg); border-top: 1px solid var(--border); padding: 22px 0; margin-top: 48px; color: var(--muted); }
.footer-heading { color: var(--fg); font-size: 17px; margin-bottom: 10px; }
.footer-columns { display: flex; justify-content: space-between; gap: 30px; }
.footer-columns ul { list-style: none; }
.footer-links { display: flex; align-items: center; justify-content: flex-end; gap: 14px; flex-wrap: wrap; }
.footer-links li { margin: 0; }

@media screen and (max-width: 700px) {
  .wrapper { padding: 0 18px; }
  .site-header .wrapper { flex-wrap: wrap; padding-bottom: 8px; }
  .site-title { line-height: 56px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: flex; flex-direction: column; align-items: center; gap: 14px; width: 100%;
    max-height: 0; opacity: 0; overflow: hidden; padding: 0; margin: 0;
    transform: translateY(-6px);
    transition: max-height .3s ease, opacity .2s ease, transform .25s ease, padding .3s ease;
  }
  .site-nav.is-open { max-height: 420px; opacity: 1; padding: 10px 0 6px; transform: translateY(0); transition-timing-function: ease-out; }
  .nav-links { justify-content: center; gap: 8px 18px; }
  .nav-utility { justify-content: center; }
  .page-content { padding: 30px 0; }
  .profile { flex-direction: column; text-align: center; }
  .profile-photo { width: 140px; height: 140px; }
  .intro-text { font-size: 16px; }
  .item { grid-template-columns: 125px 1fr; gap: 16px; padding-left: 0; padding-right: 0; }
  .item-thumb { width: 125px; height: 90px; }
  .writing-item, .entry-row { grid-template-columns: 85px minmax(0, 1fr) 24px; gap: 12px; padding-left: 0; padding-right: 0; }
  .writing-item.writing-with-image { grid-template-columns: 96px 74px minmax(0, 1fr) 24px; }
  .writing-item .entry-thumb, .entry-row .entry-thumb { width: 96px; height: 68px; }
}

@media screen and (max-width: 460px) {
  .site-nav { font-size: 14px; }
  .item { grid-template-columns: 1fr; }
  .item-thumb { width: 100%; height: 170px; }
  .item-heading { align-items: flex-start; flex-direction: column; gap: 4px; }
  .item-heading > span { white-space: nowrap; }
  .page-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .writing-item, .entry-row { grid-template-columns: 1fr 24px; }
  .writing-item time, .entry-row time { grid-column: 1 / -1; padding: 0; margin-bottom: -7px; }
  .writing-arrow { grid-column: 2; grid-row: 2; }
  .writing-item > div { grid-column: 1; grid-row: 2; }
  .entry-row .entry-side { grid-column: 1 / -1; grid-row: 1; }
  .entry-row .entry-main { grid-column: 1; grid-row: 2; }
  .writing-item.writing-with-image { grid-template-columns: minmax(0, 1fr) 24px; gap: 12px; }
  .writing-item.writing-with-image .entry-thumb-link { grid-column: 1 / -1; grid-row: 1; }
  .writing-item.writing-with-image .entry-thumb { width: 100%; height: 180px; }
  .writing-item.writing-with-image time { grid-column: 1; grid-row: 2; padding: 0; margin-bottom: -7px; }
  .writing-item.writing-with-image > div { grid-column: 1; grid-row: 3; }
  .writing-item.writing-with-image > .writing-arrow { grid-column: 2; grid-row: 3; }
  .footer-columns { flex-direction: column; gap: 0; }
  .footer-links { justify-content: flex-start; }
  .archive-year { grid-template-columns: 1fr; }
  .archive-year > h2 { margin-bottom: 10px; }
  .archive-item { grid-column: 1; grid-template-columns: 55px 1fr 20px; }
}