/* ---------- Tokens ---------- */
:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --text: #16181d;
  --text-2: #4a4f5a;
  --text-3: #7b818c;
  --line: #e6e8ec;
  --accent: #2f5bd8;
  --accent-soft: #eef2fd;
  --radius: 14px;
  --container: 1040px;
  --gutter: 24px;
  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a20;
    --text: #eceef2;
    --text-2: #b3b8c2;
    --text-3: #838a96;
    --line: #262a32;
    --accent: #7c9cff;
    --accent-soft: #1b2236;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3 { line-height: 1.3; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent-soft); color: var(--text); }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px;
}
.skip-link:focus { top: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { display: inline-flex; align-items: center; line-height: 1; }
.logo-word { height: 38px; width: auto; display: block; }
.site-nav { display: flex; gap: 4px; }
.site-nav a { padding: 8px 12px; border-radius: 8px; font-size: 15px; color: var(--text-2); transition: background .15s, color .15s; }
.site-nav a:hover { background: var(--surface); color: var(--text); }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 44px; padding: 0 18px; border-radius: 10px;
  font-size: 15px; font-weight: 600; white-space: nowrap;
  border: 1px solid var(--line); background: var(--bg); color: var(--text);
  cursor: pointer; transition: border-color .15s, background .15s, transform .15s;
}
.btn:hover { border-color: var(--text-3); }
.btn-primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.link { color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.link:hover { text-decoration: underline; text-underline-offset: 3px; }
.arrow { transition: transform .15s; display: inline-block; }

/* ---------- Hero ---------- */
.hero { padding-block: 88px 72px; }
.hero-grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: start; }
.hero-kicker { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 20px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #22a55b; box-shadow: 0 0 0 4px color-mix(in srgb, #22a55b 20%, transparent); }
.hero h1 { font-size: clamp(32px, 5vw, 48px); font-weight: 800; letter-spacing: -0.035em; line-height: 1.25; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead { margin-top: 20px; font-size: 18px; color: var(--text-2); max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.avatar { width: 148px; height: 148px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); }
.hero-facts {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 56px 0 0;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.hero-facts div { background: var(--bg); padding: 18px 20px; }
.hero-facts dt { font-size: 13px; color: var(--text-3); margin-bottom: 4px; }
.hero-facts dd { margin: 0; font-size: 15px; font-weight: 600; }

/* ---------- Sections ---------- */
.section { padding-block: 72px; border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 32px; }
.section-head h2 { font-size: 28px; font-weight: 800; }
.section-head p { color: var(--text-3); font-size: 15px; }

/* ---------- Projects ---------- */
.projects { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.project-card { display: flex !important; flex-direction: column; }
.project-card.is-featured { grid-column: 1 / -1; }
.project-card.is-featured .project-body { padding: 36px; }
.project-card.is-featured h3 { font-size: 26px; }
.project-card.is-featured.has-media { display: grid !important; grid-template-columns: 1.15fr 1fr; align-items: stretch; }
.project-card.is-featured.has-media .project-media { order: 0; margin: 14px 14px 14px 0; aspect-ratio: auto; }
.project-sub { font-size: 15px; color: var(--text-3); margin-top: -8px; }
.project-card {
  position: relative; display: grid; grid-template-columns: 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.project-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: 0 8px 28px -12px rgb(20 30 60 / .18); transform: translateY(-2px); }
.project-card:hover .arrow { transform: translateX(3px); }
.project-body { padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.project-meta { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 14px; color: var(--text-3); }
.project-meta .badge { color: var(--accent); background: var(--accent-soft); font-weight: 600; padding: 1px 10px; border-radius: 999px; font-size: 13px; }
.project-card h3 { font-size: 22px; font-weight: 700; }
.project-card h3 a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.project-summary { color: var(--text-2); }
.points { display: grid; gap: 6px; font-size: 15px; color: var(--text-2); }
.points li { position: relative; padding-left: 16px; }
.points li::before { content: ""; position: absolute; left: 2px; top: .75em; width: 5px; height: 5px; border-radius: 50%; background: var(--text-3); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { font-size: 13px; padding: 3px 10px; border-radius: 6px; background: var(--surface); color: var(--text-2); border: 1px solid var(--line); }
.project-more { margin-top: auto; padding-top: 4px; font-size: 15px; }
.project-media { margin: 12px 12px 0; border-radius: 10px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); aspect-ratio: 16 / 8; order: -1; }
.project-media img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }


/* ---------- Experience ---------- */
.timeline { display: grid; gap: 0; }
.timeline-item { display: grid; grid-template-columns: 180px 1fr; gap: 32px; padding-block: 28px; border-bottom: 1px solid var(--line); }
.timeline-item:first-child { padding-top: 0; }
.timeline-item:last-child { border-bottom: 0; }
.period { font-size: 14px; color: var(--text-3); font-variant-numeric: tabular-nums; padding-top: 3px; }
.timeline-item h3 { font-size: 20px; font-weight: 700; }
.team { color: var(--text-2); margin: 2px 0 12px; font-size: 15px; }
.skills { margin-top: 28px; }

/* ---------- More projects ---------- */
.more-projects { margin-top: 20px; border-top: 1px solid var(--line); }
.more-projects a { display: grid; grid-template-columns: 200px 1fr auto; gap: 4px 20px; align-items: center; padding: 16px 4px; border-bottom: 1px solid var(--line); }
.more-projects a:hover { background: var(--surface); }
.more-projects a:hover .arrow { transform: translateX(3px); }
.more-projects strong { font-size: 16px; }
.more-sub { grid-column: 2; font-size: 14px; color: var(--text-3); }
.more-projects .arrow { grid-row: span 2; color: var(--text-3); }

/* ---------- Experience by project ---------- */
.company + .company { margin-top: 56px; }
.company-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-bottom: 14px; border-bottom: 2px solid var(--text); }
.company-head h3 { font-size: 22px; font-weight: 800; }
.company-head h3 span { font-size: 15px; font-weight: 500; color: var(--text-2); margin-left: 8px; letter-spacing: 0; }
.job { display: grid; grid-template-columns: 180px 1fr; gap: 32px; padding-block: 28px; border-bottom: 1px solid var(--line); }
.job h4 { font-size: 19px; font-weight: 700; margin: 0; line-height: 1.4; letter-spacing: -0.02em; }
.job h4 a:hover { color: var(--accent); }
.job h4 a:hover .arrow { transform: translateX(3px); }
.job-sub { font-size: 15px; color: var(--text-3); margin: 4px 0 14px; }
.job .tags { margin-top: 14px; }

/* ---------- Focus ---------- */
.focus-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.focus-card { padding: 26px; border-radius: var(--radius); background: var(--surface); display: flex; flex-direction: column; gap: 8px; }
.focus-num { font-size: 13px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.focus-card h3 { font-size: 19px; font-weight: 700; }
.focus-card p { color: var(--text-2); font-size: 15px; }
.focus-links { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: auto; padding-top: 6px; }
.focus-links .link { font-size: 14px; }
.focus-links .link:hover .arrow { transform: translateX(3px); }

.sub-title { font-size: 16px; font-weight: 700; margin: 0 0 12px; letter-spacing: -0.01em; }

/* ---------- Others ---------- */
.others { margin-top: 32px; }
.years { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); display: grid; gap: 24px; }
.year { position: relative; padding-left: 24px; }
.year::before { content: ""; position: absolute; left: -7px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.year-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.year-num { font-weight: 800; font-size: 17px; font-variant-numeric: tabular-nums; }
.year-theme { font-size: 14px; color: var(--text-3); }
.year-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.year-items li { padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; display: flex; flex-direction: column; gap: 2px; }
.year-items strong { font-size: 15px; }
.year-items span { font-size: 14px; color: var(--text-2); line-height: 1.6; }
.ways-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; }
.way { padding: 22px 0 8px; border-top: 2px solid var(--text); }
.way h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.way p { color: var(--text-2); font-size: 15px; }
.job-link { margin-top: 12px; font-size: 14px; }

/* ---------- Open source ---------- */
.os-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.os-card { position: relative; display: flex; flex-direction: column; gap: 10px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .2s, transform .2s; }
.os-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); transform: translateY(-2px); }
.os-card:hover .arrow { transform: translate(2px, -2px); }
.os-top { display: flex; align-items: baseline; gap: 10px; padding-right: 24px; }
.os-top h3 { font-size: 19px; font-weight: 700; }
.os-role { font-size: 13px; color: var(--text-3); }
.os-card p { color: var(--text-2); font-size: 15px; }
.os-card .tags { margin-top: auto; }
.os-card > .arrow { position: absolute; top: 22px; right: 22px; color: var(--text-3); }
.contrib { margin-top: 36px; }
.contrib-row { display: grid; grid-template-columns: 200px 1fr auto; gap: 20px; align-items: center; padding: 16px 4px; border-top: 1px solid var(--line); }
.contrib-row:last-child { border-bottom: 1px solid var(--line); }
.contrib-row:hover { background: var(--surface); }
.contrib-repo { font-size: 14px; color: var(--text-3); font-family: var(--mono); display: flex; flex-direction: column; }
.contrib-repo em { font-style: normal; font-family: var(--sans); font-size: 13px; }
.contrib-row strong { display: block; font-size: 16px; }
.contrib-row strong + span { font-size: 14px; color: var(--text-2); }
.contrib-row .arrow { color: var(--text-3); }

/* ---------- Writing ---------- */
.posts { border-top: 1px solid var(--line); }
.post { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 24px 4px; border-bottom: 1px solid var(--line); }
.post-type { font-size: 13px; color: var(--text-3); font-weight: 600; padding-top: 3px; }
.post h3 { font-size: 18px; font-weight: 700; }
.post h3 a:hover { color: var(--accent); }
.post h3 a:hover .arrow { transform: translate(2px, -2px); }
.post h3 .arrow { color: var(--text-3); font-size: 15px; }
.post p { font-size: 15px; color: var(--text-2); margin-top: 4px; }
.post-extra { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px !important; }
.post-extra a { font-size: 13px; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--text-2); }
.post-extra a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Contact ---------- */
.contact-card { border-radius: 20px; background: var(--surface); padding: 48px; display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; }
.contact-card h2 { font-size: 28px; font-weight: 800; }
.contact-card p { color: var(--text-2); margin-top: 10px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.contact-actions { position: relative; }
.copy-status { position: absolute; top: calc(100% + 8px); right: 0; font-size: 14px; color: var(--accent); white-space: nowrap; }

/* ---------- Footer ---------- */
.site-footer { padding-block: 36px 48px; color: var(--text-3); font-size: 14px; }
.site-footer .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; }
.site-footer a:hover { color: var(--text); }

/* ---------- Case study ---------- */
.case .container.case-layout { max-width: var(--container); display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; }
.toc { position: sticky; top: 96px; align-self: start; font-size: 14px; }
.toc .breadcrumb { margin-bottom: 20px; font-size: 14px; }
.toc-title { font-size: 12px; font-weight: 700; color: var(--text-3); letter-spacing: .04em; margin-bottom: 8px; }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 4px 0 4px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--text-2); }
.toc a:hover { color: var(--text); border-left-color: var(--accent); }
.case-body { max-width: 760px; min-width: 0; }
.breadcrumb.mobile-only { display: none; }
.facts { grid-template-columns: repeat(3, 1fr); }
.facts .facts-wide { grid-column: 1 / -1; }
.facts .tags { margin-top: 6px; }
.facts .tags li { background: var(--bg); font-weight: 500; }
.page-links { margin-top: 20px !important; }
.link-previews { margin-top: 28px; }
.link-previews-title { font-size: 13px; font-weight: 700; color: var(--text-3); letter-spacing: .04em; margin-bottom: 10px; }
.preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.preview { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--bg); transition: border-color .2s, transform .2s; }
.preview:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); transform: translateY(-2px); }
.preview img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; border-bottom: 1px solid var(--line); }
.preview-body { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px 12px; }
.preview-body strong { font-size: 14px; line-height: 1.4; }
.preview-body > span { font-size: 12px; color: var(--text-3); }
.case-section { margin-top: 56px; }
.case-section > h2 { font-size: 23px; font-weight: 800; margin-bottom: 14px; }
.case-section > p { color: var(--text-2); font-size: 17px; line-height: 1.85; }
.case-section > p + p { margin-top: 14px; }
.closing { margin: 0; padding: 22px 26px; border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; color: var(--text); font-size: 17px; line-height: 1.85; }
.points-lg { font-size: 16px; gap: 8px; }

.flow-figure { margin: 0 0 20px; }
.flow { display: grid; gap: 14px; padding: 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow-x: auto; }
.flow-row { display: flex; align-items: center; gap: 10px; min-width: max-content; }
.flow-row + .flow-row { padding-top: 14px; border-top: 1px dashed var(--line); }
.flow-col { display: flex; flex-direction: column; gap: 6px; }
.node { display: block; padding: 8px 12px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); font-size: 14px; font-weight: 600; white-space: nowrap; }
.flow-row .flow-col:first-child .node { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); color: var(--accent); }
.flow-arrow { width: 24px; height: 1px; background: var(--text-3); position: relative; flex: none; }
.flow-arrow::after { content: ""; position: absolute; right: -1px; top: -3px; border: 3.5px solid transparent; border-left: 6px solid var(--text-3); border-right: 0; }
.diagram-figure { padding: 16px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.diagram { display: block; width: 100%; height: auto; font-family: var(--sans); }
.diagram-figure figcaption { padding-top: 10px; }
.flow-figure figcaption, .shot figcaption { font-size: 13px; color: var(--text-3); margin-top: 8px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.feature-grid li { padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; display: flex; flex-direction: column; }
.feature-grid strong { font-size: 15px; }
.feature-grid span { font-size: 14px; color: var(--text-2); }
.shot { margin: 20px 0 0; }
.shot img { border-radius: var(--radius); border: 1px solid var(--line); }

.decisions { display: grid; gap: 16px; }
.decision { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.decision h3 { font-size: 18px; font-weight: 700; display: flex; gap: 10px; margin-bottom: 14px; }
.decision h3 span { color: var(--accent); font-variant-numeric: tabular-nums; }
.decision dl { margin: 0; display: grid; gap: 10px; }
.decision dl div { display: grid; grid-template-columns: 56px 1fr; gap: 12px; }
.decision dt { font-size: 13px; font-weight: 700; color: var(--text-3); padding-top: 2px; }
.decision dd { margin: 0; color: var(--text-2); font-size: 15px; line-height: 1.75; }
.decision .limit { padding-top: 10px; border-top: 1px dashed var(--line); }
.decision .limit dt { color: #b7791f; }
.follow-up { margin-top: 16px !important; padding: 16px 20px; border-radius: 12px; background: var(--surface); font-size: 15px !important; }
.follow-up strong { display: block; color: var(--text); margin-bottom: 2px; }

/* ---------- Detail pages (case study, resume) ---------- */
.page { padding-block: 48px 88px; }
.page .container { max-width: 800px; }
.breadcrumb { display: inline-flex; gap: 6px; font-size: 15px; color: var(--text-3); margin-bottom: 36px; }
.breadcrumb:hover { color: var(--text); }
.page-head h1 { font-size: clamp(30px, 5vw, 42px); font-weight: 800; letter-spacing: -0.035em; margin-top: 12px; }
.page-lead { font-size: 18px; color: var(--text-2); margin-top: 16px; }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 36px 0 12px; padding: 20px 24px; background: var(--surface); border-radius: var(--radius); }
.facts dt { font-size: 13px; color: var(--text-3); }
.facts dd { margin: 2px 0 0; font-size: 15px; font-weight: 600; }
.prose { margin-top: 44px; display: grid; gap: 40px; }
.prose h2 { font-size: 21px; font-weight: 700; margin-bottom: 12px; }
.prose p { color: var(--text-2); font-size: 17px; line-height: 1.85; }
.prose figure { margin: 0; }
.prose figure img { border-radius: var(--radius); border: 1px solid var(--line); }
.prose figcaption { font-size: 14px; color: var(--text-3); margin-top: 10px; }
.page-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 44px; }
.note { margin-top: 36px; padding: 16px 20px; border-left: 3px solid var(--line); color: var(--text-3); font-size: 14px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 56px; }
.pager a { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; transition: border-color .15s; }
.pager a:hover { border-color: var(--accent); }
.pager span { display: block; font-size: 13px; color: var(--text-3); }
.pager strong { font-size: 16px; }
.pager .next { text-align: right; grid-column: 2; }

.resume-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.resume-contact { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-top: 16px; font-size: 15px; }
.resume-contact a { color: var(--accent); }
.resume-block { margin-top: 48px; }
.resume-block > h2 { font-size: 14px; font-weight: 700; color: var(--text-3); letter-spacing: .04em; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.resume-block .points { font-size: 16px; }
.resume-block .timeline-item, .resume-block .job { grid-template-columns: 150px 1fr; }

.center-page { min-height: 70vh; display: grid; place-items: center; text-align: center; }
.center-page .btn { margin-top: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .case .container.case-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .toc { display: none; }
  .breadcrumb.mobile-only { display: inline-flex; }
}

@media (max-width: 860px) {
  .projects, .os-grid, .ways-grid { grid-template-columns: 1fr; }
  .year-items { grid-template-columns: 1fr 1fr; }
  .contrib-row { grid-template-columns: 1fr auto; }
  .contrib-repo { grid-column: 1 / -1; flex-direction: row; gap: 8px; }
  .hero { padding-block: 56px 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .avatar { width: 88px; height: 88px; grid-row: 1; }
  .project-card.has-media { grid-template-columns: 1fr; }
  .project-media { margin: 0 12px 12px; aspect-ratio: 16 / 9; grid-row: 2; }
  .contact-card { grid-template-columns: 1fr; padding: 32px 24px; }
  .copy-status { left: 0; right: auto; }
  .contact-card { padding-bottom: 48px; }
}

@media (max-width: 640px) {
  :root { --gutter: 18px; }
  body { font-size: 15px; }
  .site-nav a:not(.nav-keep) { display: none; }
  .hero-lead, .page-lead { font-size: 16px; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .hero-facts, .facts { grid-template-columns: 1fr; }
  .facts { gap: 12px; }
  .hero-facts { margin-top: 40px; }
  .hero-facts div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 16px; }
  .hero-facts dt { margin: 0; white-space: nowrap; }
  .hero-facts dd { text-align: right; }
  .section { padding-block: 52px; }
  .section-head { flex-direction: column; gap: 4px; }
  .section-head h2, .contact-card h2 { font-size: 24px; }
  .project-body { padding: 22px 20px; }
  .project-card h3 { font-size: 20px; }
  .timeline-item, .resume-block .timeline-item, .job { grid-template-columns: 1fr; gap: 4px; }
  .company-head { flex-direction: column; gap: 2px; }
  .company-head h3 span { display: block; margin: 2px 0 0; }
    .prose p, .case-section > p { font-size: 16px; }
  .focus-grid, .year-items, .feature-grid, .ways-grid { grid-template-columns: 1fr; }
  .more-projects a { grid-template-columns: 1fr auto; }
  .more-sub { grid-column: 1; }
  .closing { padding: 18px; font-size: 16px; }
  .year-head { flex-direction: column; gap: 0; }
  .post { grid-template-columns: 1fr; gap: 4px; }
  .facts { grid-template-columns: 1fr; }
  .preview-grid { grid-template-columns: 1fr; }
  .decision { padding: 20px 18px; }
  .decision dl div { grid-template-columns: 1fr; gap: 2px; }
  .project-card.is-featured .project-body { padding: 22px 20px; }
  .project-card.is-featured.has-media { grid-template-columns: 1fr; }
  .project-card.is-featured.has-media .project-media { order: -1; margin: 12px 12px 0; aspect-ratio: 16 / 8; }
  .flow { padding: 16px; overflow: visible; }
  .flow-row { flex-direction: column; align-items: stretch; min-width: 0; gap: 8px; }
  .flow-col { align-items: stretch; }
  .node { white-space: normal; text-align: center; }
  .flow-arrow { width: 1px; height: 16px; align-self: center; }
  .flow-arrow::after { right: auto; top: auto; bottom: -1px; left: -3px; border: 3.5px solid transparent; border-top: 6px solid var(--text-3); border-bottom: 0; }
  .case-section { margin-top: 44px; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: auto; }
  .resume-head { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

@media print {
  :root { --bg: #fff; --surface: #fff; --text: #000; --text-2: #222; --text-3: #555; --line: #ccc; --accent: #000; }
  .site-header, .site-footer, .breadcrumb, .no-print, .skip-link { display: none !important; }
  .page { padding: 0; }
  .page .container { max-width: none; padding: 0; }
  .resume-block { margin-top: 24px; break-inside: avoid-page; }
  .timeline-item, .job, .year { break-inside: avoid; padding-block: 14px; }
  .year-items { grid-template-columns: 1fr 1fr; }
  .job .tags li { border: 0; padding: 0 6px 0 0; }
  a { color: inherit !important; }
}