:root {
  color-scheme: dark;
  --bg: #111613; --surface: #19201b; --panel: #1e2821; --text: #f1f1e7;
  --muted: #b2bcb4; --line: #344238; --accent: #c3f28a; --accent-text: #13200c;
  --radius: 12px; --sans: Inter, "Segoe UI", Arial, sans-serif; --mono: "Cascadia Code", Consolas, monospace;
}
html[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f7ee; --surface: #edefe3; --panel: #e2e8d8; --text: #18251b;
  --muted: #536353; --line: #ccd4c5; --accent: #456b22; --accent-text: #fff;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 16px; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a, input, textarea, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, figure, blockquote { margin: 0; }
h1, h2, h3 { line-height: 1.15; }
h1, h2 { letter-spacing: -.05em; font-weight: 600; }
h1 { font-size: clamp(52px, 6.3vw, 82px); line-height: 1.04; margin-bottom: 24px; }
h2 { font-size: clamp(32px, 3.9vw, 50px); }
h3 { font-weight: 600; }
em { font-style: normal; color: var(--accent); }
.muted { color: var(--muted); }
.container { width: min(1180px, calc(100% - 80px)); margin-inline: auto; }
.mono, .eyebrow, .tags, .portrait-tags, .diagram-label { font-family: var(--mono); }
.eyebrow { font-size: 12px; font-weight: 500; letter-spacing: .08em; color: var(--accent); margin-bottom: 18px; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 100; background: var(--accent); color: var(--accent-text); padding: 12px; }
.skip-link:focus { top: 12px; }
.header { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 20; }
.header-inner { min-height: 80px; display: flex; align-items: center; gap: 20px; }
.brand { font-size: 34px; font-weight: 750; letter-spacing: -3px; display: flex; align-items: center; line-height: 1; }
.brand > span:first-child { color: var(--accent); }
.brand-name { font-size: 14px; font-weight: 500; letter-spacing: 0; margin-left: 18px; }
.header nav { display: flex; align-items: center; gap: 20px; margin-left: auto; font-size: 14px; }
.header nav a { padding-block: 10px; transition: color .2s; white-space: nowrap; }
.header nav a:hover { color: var(--accent); }
.nav-contact { color: var(--accent); }
.theme-toggle { height: 40px; width: 40px; flex-shrink: 0; border: 1px solid var(--line); border-radius: 50%; background: none; color: var(--text); font-size: 23px; line-height: 1; }
.menu-toggle { border: 1px solid var(--line); border-radius: 5px; background: var(--surface); color: var(--text); min-height: 40px; padding: 7px 12px; font-size: 14px; }
.menu-toggle span { margin-left: 8px; }
.language-switch { display: flex; flex-shrink: 0; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.language-switch button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 3px; padding: 7px 9px; min-height: 38px; background: transparent; color: var(--muted); font-size: 13px; font-weight: 600; }
.language-switch button[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); }
.language-switch img { width: 20px; height: 14px; object-fit: contain; border-radius: 2px; }
.confirmation-header .language-switch { margin-left: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.hero { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 48px; align-items: center; padding-block: 44px 52px; }
.hero .eyebrow { display: flex; align-items: center; gap: 10px; }
.status-dot { height: 7px; width: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.hero-intro { font-size: 17px; line-height: 1.75; max-width: 620px; color: var(--muted); }
.hero-intro strong { color: var(--text); font-weight: 600; }
.hero-sub { font-size: 15px; color: var(--muted); margin-block: 18px 28px; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 25px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 18px; font-size: 15px; padding: 13px 17px; min-height: 48px; border-radius: 5px; border: 1px solid var(--line); font-weight: 600; transition: background .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.secondary { background: none; color: var(--text); }
.secondary:hover { background: var(--surface); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 24px; font-size: 13px; color: var(--muted); }
.hero-meta span + span::before { content: "·"; color: var(--accent); margin-right: 12px; }
.text-link { display: inline-flex; align-items: center; gap: 18px; font-size: 15px; margin-top: 24px; color: var(--accent); }
.text-link:hover, .inline-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.hero-contact { margin-top: 15px; }
.inline-link { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.portrait-panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; width: 100%; max-width: 400px; justify-self: end; }
.portrait-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
.portrait-top > span:last-child { font-size: 20px; color: var(--accent); }
.portrait-frame { border-radius: 50%; overflow: hidden; width: 88%; margin: 22px auto; background: #d9dfd5; aspect-ratio: 1; border: 6px solid var(--bg); }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; }
.portrait-caption { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--line); padding-top: 18px; gap: 12px; }
.portrait-caption strong { display: block; font-size: 22px; letter-spacing: -.03em; }
.portrait-caption div > span { font-size: 14px; color: var(--muted); }
.portrait-mark { font-family: var(--mono); font-size: 24px; color: var(--accent); }
.portrait-tags { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12px; margin-top: 18px; }
.portrait-tags span { border: 1px solid var(--line); padding: 4px 8px; border-radius: 4px; color: var(--muted); }
.stack-band { border-block: 1px solid var(--line); background: var(--surface); }
.stack-inner { display: flex; gap: 12px 24px; align-items: center; flex-wrap: wrap; padding-block: 20px; color: var(--muted); font-size: 15px; font-weight: 600; }
.stack-label { font-size: 12px; letter-spacing: .05em; margin-right: auto; color: var(--accent); }
.section { padding-block: 72px; }
.section-heading { margin-bottom: 36px; }
.section-heading .eyebrow { margin-bottom: 15px; }
.section-description { max-width: 840px; font-size: 16px; color: var(--muted); margin-top: 22px; }
.section-kicker { font-size: 18px; margin-top: 24px; }
.section-tinted { background: var(--surface); border-block: 1px solid var(--line); }
.contributions-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.contribution { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--bg); }
.project-visual { min-height: 260px; background: var(--panel); display: flex; flex-direction: column; align-items: center; padding: 22px 20px; border-bottom: 1px solid var(--line); }
.diagram-label { align-self: flex-start; font-size: 12px; letter-spacing: .03em; color: var(--muted); }
.workflow { display: flex; flex-direction: column; align-items: center; gap: 24px; margin: 20px 0 0; padding: 0; list-style: none; font-family: var(--mono); font-size: 13px; width: 100%; }
.workflow li { position: relative; border: 1px solid var(--line); padding: 8px 12px; width: min(100%, 250px); text-align: center; border-radius: 4px; background: var(--bg); }
.workflow li:nth-child(2) { border-color: var(--accent); color: var(--accent); }
.workflow li + li::before { content: "↓"; position: absolute; left: 50%; top: -27px; transform: translateX(-50%); color: var(--muted); }
.visual-note { font-size: 12px; color: var(--muted); text-align: center; margin-top: 16px; }
.contribution-body { padding: 26px; }
.contribution-body .eyebrow { font-size: 12px; margin-bottom: 12px; }
.contribution-body h3 { font-size: 26px; letter-spacing: -.035em; margin-bottom: 16px; }
.contribution-body > p:not(.eyebrow) { font-size: 16px; color: var(--muted); line-height: 1.75; }
.case-notes { font-size: 15px; margin: 22px 0; }
.case-notes dt { font-weight: 600; margin-top: 16px; }
.case-notes dd { margin: 5px 0 0; color: var(--muted); }
.project-details { border-top: 1px solid var(--line); padding-top: 16px; font-size: 15px; }
.project-details summary { cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; list-style: none; min-height: 30px; }
.project-details summary::-webkit-details-marker { display: none; }
.project-details summary span { font-size: 22px; color: var(--accent); transition: transform .2s; }
.project-details[open] summary span { transform: rotate(45deg); }
.project-details p { color: var(--muted); margin-top: 14px; }
.evidence-note { font-size: 14px; color: var(--muted); margin-top: 26px; max-width: 880px; }
.architecture { padding: 28px; border: 1px solid var(--line); background: var(--bg); border-radius: var(--radius); }
.architecture > figcaption { font-size: 16px; font-weight: 600; margin-bottom: 24px; }
.architecture > figcaption span { font-size: 14px; font-weight: 400; }
.flow { list-style: none; display: grid; gap: 24px; margin: 0; padding: 0; }
.delivery-flow { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.flow li { position: relative; border: 1px solid var(--line); border-radius: 6px; padding: 16px 12px; background: var(--surface); display: flex; flex-direction: column; justify-content: center; min-width: 0; }
.flow li + li::before { content: "→"; position: absolute; left: -20px; color: var(--accent); }
.flow strong { font-size: 16px; line-height: 1.45; }
.flow small { color: var(--muted); font-size: 13px; margin-top: 7px; }
.flow-step { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-bottom: 10px; }
.flow .cluster-node { border-color: var(--accent); background: var(--panel); }
.support-modules { list-style: none; margin: 24px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.support-modules li { display: flex; flex-direction: column; gap: 4px; }
.support-modules strong { font-size: 16px; }
.support-modules span { font-size: 14px; color: var(--muted); }
.architecture-note { color: var(--muted); margin-top: 20px; font-size: 14px; }
.homelab-categories { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 32px; margin-top: 32px; }
.homelab-categories h3 { font-size: 18px; margin-bottom: 10px; }
.homelab-categories p { color: var(--muted); font-size: 15px; }
.security-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.security-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.row-number { font-size: 12px; color: var(--accent); }
.security-card h3 { font-size: 24px; letter-spacing: -.03em; margin: 16px 0; }
.security-card p, .security-card li { color: var(--muted); font-size: 16px; }
.security-card ul { padding-left: 18px; margin-block: 20px; }
.security-card li { padding-left: 3px; margin-top: 12px; }
.security-card li::marker { color: var(--accent); }
.security-card .card-note { font-size: 14px; border-top: 1px solid var(--line); padding-top: 16px; }
.security-architecture { margin-top: 28px; }
.security-flow { grid-template-columns: .65fr 1fr 1.4fr 1fr .7fr 1fr; }
.security-flow strong { font-size: 15px; }
.security-flow li { padding: 14px 10px; }
.security-message { margin-top: 24px; max-width: 880px; font-size: 16px; }
.responsibility-quote { margin-top: 28px; padding: 6px 0 6px 24px; border-left: 3px solid var(--accent); font-size: clamp(20px, 2.2vw, 27px); line-height: 1.5; max-width: 930px; letter-spacing: -.02em; }
#expertise { border-top: 1px solid var(--line); }
.expertise-layout { display: grid; grid-template-columns: .8fr 1.3fr; gap: 70px; }
.expertise-intro > p { font-size: 17px; color: var(--muted); line-height: 1.85; max-width: 365px; }
.expertise-row { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 14px; padding-block: 26px; border-top: 1px solid var(--line); }
.expertise-row:first-child { padding-top: 0; border-top: 0; }
.expertise-row .row-number { padding-top: 5px; }
.expertise-row h3 { font-size: 23px; margin-bottom: 12px; letter-spacing: -.03em; }
.expertise-row p { color: var(--muted); font-size: 16px; margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tags span { font-size: 12px; color: var(--muted); background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 4px 8px; }
.expertise-row .practice-note { font-size: 14px; margin-top: 16px; margin-bottom: 0; }
.heading-inline { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; }
.heading-inline > p { font-size: 15px; color: var(--muted); }
.job { display: grid; grid-template-columns: .68fr 1.5fr; gap: 50px; padding-block: 28px; border-top: 1px solid var(--line); }
.job-period { font-size: 15px; padding-top: 5px; }
.job-period > span:not(.current-tag) { font-size: 14px; color: var(--muted); }
.job-period p { margin-bottom: 6px; }
.current-tag { display: inline-block; font-family: var(--mono); font-size: 12px; border: 1px solid var(--accent); color: var(--accent); padding: 3px 8px; border-radius: 4px; margin-bottom: 12px; }
.job-content h3 { font-size: 28px; letter-spacing: -.04em; margin-bottom: 8px; }
.job-role { font-size: 16px; color: var(--accent); margin-bottom: 12px; }
.job-content > p:not(.job-role) { font-size: 16px; color: var(--muted); max-width: 680px; }
.job .tags { margin-top: 18px; }
.education-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; }
.languages { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 28px; font-size: 16px; }
.languages small { display: block; font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 4px; }
.education-list article { border-bottom: 1px solid var(--line); padding-bottom: 20px; margin-bottom: 20px; }
.education-list article:last-child { margin-bottom: 0; }
.education-list .mono { color: var(--accent); font-size: 12px; }
.education-list h3 { font-size: 18px; margin-block: 9px; line-height: 1.4; }
.education-list p { font-size: 15px; color: var(--muted); }
.education-list .community { border: 0; padding-bottom: 0; padding-top: 8px; }
.contact-section { display: grid; grid-template-columns: 1fr 1.15fr; gap: 70px; }
.contact-intro > p:not(.eyebrow):not(.copy-status) { font-size: 16px; color: var(--muted); max-width: 400px; margin-block: 22px; }
.email-link { display: inline-flex; align-items: center; gap: 16px; font-size: clamp(16px, 1.7vw, 20px); color: var(--accent); border-bottom: 1px solid var(--line); padding-bottom: 9px; overflow-wrap: anywhere; }
.contact-links { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; margin-top: 20px; font-size: 15px; }
.contact-links button { border: 0; background: none; padding: 5px 0; color: var(--text); font-size: 15px; }
.contact-links span { color: var(--accent); margin-left: 6px; }
.copy-status { font-size: 14px; color: var(--accent); min-height: 23px; margin-top: 8px; }
.cv-downloads { display: flex; align-items: flex-start; flex-direction: column; gap: 12px; margin-top: 22px; }
.cv-downloads > p { font-size: 12px; color: var(--muted); }
.contact-form { padding-top: 8px; }
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.contact-form label { display: block; font-size: 15px; margin-bottom: 8px; }
.contact-form label span { color: var(--accent); }
input, textarea { display: block; width: 100%; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 5px; padding: 13px 14px; font-size: 16px; margin-bottom: 20px; }
textarea { resize: vertical; min-height: 145px; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 1; }
.submit-button { width: 100%; justify-content: space-between; }
.form-note { font-size: 14px; color: var(--muted); margin-top: 12px; line-height: 1.7; }
.form-note a { text-decoration: underline; text-underline-offset: 3px; }
.form-status { font-size: 14px; color: var(--accent); min-height: 24px; margin-top: 12px; }
.honeypot { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 26px; }
.footer p, .back-top { font-size: 13px; color: var(--muted); }
.back-top span { color: var(--accent); margin-left: 12px; }
@media (max-width: 1200px) {
  .brand-name { display: none; }
  .header nav { gap: 18px; }
  .hero { gap: 32px; }
  .contribution-body, .security-card { padding: 22px; }
  .security-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
  .security-flow li:nth-child(4)::before { content: none; }
}
@media (max-width: 1000px) {
  .header { position: static; }
  .js .header { position: sticky; }
  .container { width: calc(100% - 48px); }
  .header-inner { min-height: 72px; flex-wrap: wrap; gap: 12px; padding-block: 12px; }
  .brand-name { display: inline; }
  .menu-toggle { margin-left: auto; }
  .language-switch button { padding: 7px 6px; font-size: 12px; gap: 4px; }
  .language-switch img { width: 17px; height: 12px; }
  .header nav { order: 4; width: 100%; margin-left: 0; flex-wrap: wrap; gap: 4px 24px; border-top: 1px solid var(--line); padding-top: 10px; }
  .header nav a { font-size: 15px; }
  .hero { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 28px; padding-block: 36px 42px; }
  h1 { font-size: clamp(48px, 6.5vw, 65px); }
  .hero .eyebrow { font-size: 12px; }
  .portrait-panel { padding: 18px; }
  .portrait-caption strong { font-size: 20px; }
  .portrait-mark { display: none; }
  .contributions-grid, .security-grid { grid-template-columns: 1fr; }
  .contribution { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr); }
  .project-visual { height: 100%; justify-content: center; border-bottom: 0; border-right: 1px solid var(--line); }
  .diagram-label { align-self: center; text-align: center; }
  .security-card { padding: 26px; }
  .delivery-flow { grid-template-columns: 1fr; gap: 28px; }
  .delivery-flow li { padding: 14px 18px; }
  .delivery-flow li + li::before { content: "↓"; left: 50%; top: -28px; transform: translateX(-50%); }
  .delivery-flow .flow-step { margin-bottom: 5px; }
  .homelab-categories { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .expertise-layout, .education-layout, .contact-section { gap: 36px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 88px; }
  .container { width: calc(100% - 40px); }
  .brand-name { font-size: 13px; margin-left: 14px; }
  .brand { font-size: 31px; }
  .hero { grid-template-columns: 1fr; gap: 32px; padding-block: 32px 40px; }
  .hero-content { max-width: 580px; }
  h1 { font-size: clamp(48px, 10vw, 70px); }
  .hero-intro { font-size: 16px; }
  .hero .eyebrow { line-height: 1.7; }
  .hero-meta { font-size: 13px; gap: 6px 14px; }
  .hero-meta span + span::before { margin-right: 8px; }
  .portrait-panel { width: min(100%, 350px); justify-self: center; }
  .portrait-frame { width: 78%; }
  .stack-inner { gap: 10px 20px; font-size: 14px; }
  .stack-label { width: 100%; }
  .section { padding-block: 52px; }
  .section-heading { margin-bottom: 28px; }
  .section-description, .security-card p, .security-card li, .contribution-body > p:not(.eyebrow) { font-size: 15px; }
  .contribution { display: block; }
  .project-visual { min-height: 260px; border-right: 0; border-bottom: 1px solid var(--line); }
  .contribution-body { padding: 24px; }
  .architecture { padding: 22px; }
  .architecture > figcaption span { display: block; margin-top: 5px; }
  .support-modules { grid-template-columns: 1fr; gap: 18px; }
  .homelab-categories { gap: 26px; }
  .security-card { padding: 24px; }
  .security-flow { grid-template-columns: 1fr; gap: 28px; }
  .security-flow li + li::before, .security-flow li:nth-child(4)::before { content: "↓"; left: 50%; top: -28px; transform: translateX(-50%); }
  .security-flow li { padding: 16px; }
  .expertise-layout, .education-layout, .contact-section { grid-template-columns: 1fr; gap: 32px; }
  .expertise-intro > p { max-width: 100%; font-size: 16px; }
  .expertise-row h3 { font-size: 22px; }
  .expertise-row p { font-size: 15px; }
  .heading-inline { display: block; }
  .heading-inline > p { margin-top: 20px; }
  .job { grid-template-columns: 1fr; gap: 16px; padding-block: 26px; }
  .job-period > p { font-size: 14px; }
  .job-content h3 { font-size: 26px; }
  .job-content > p:not(.job-role) { font-size: 15px; }
  .current-tag { display: table; }
  .email-link { font-size: 19px; }
  .footer .brand { font-size: 27px; }
  .footer-inner { flex-wrap: wrap; gap: 16px; }
  .footer p, .back-top { font-size: 12px; }
}
@media (max-width: 420px) {
  .brand-name { display: none; }
  .hero .eyebrow { font-size: 11px; }
  .actions { gap: 10px; }
  .actions .primary { width: 100%; }
  .button { font-size: 14px; padding: 12px 14px; gap: 12px; }
  .homelab-categories { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .back-top { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}