:root {
  --color-text: #242424;
  --color-muted: #737373;
  --color-line: #e9e9e9;
  --color-surface: #fafafa;
  --color-accent: #279d76;
  --color-accent-soft: #e9faf2;
  --font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --sidebar-width: 270px;
  --content-width: 900px;
  --radius: 6px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--color-text); background: #fff; font: 15px/1.6 var(--font-body); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(30px, 3.2vw, 40px); line-height: 1.13; letter-spacing: -1.2px; font-weight: 700; }
h2 { font-size: 24px; line-height: 1.3; letter-spacing: -.5px; }
h3 { font-size: 18px; line-height: 1.4; letter-spacing: -.3px; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 5px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 12px; background: #fff; border: 1px solid; }
.skip-link:focus { top: 12px; }
.muted { color: var(--color-muted); }
.site-shell { display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr); max-width: 1280px; min-height: 100vh; margin: auto; }
.sidebar { position: sticky; top: 0; align-self: start; height: 100vh; padding: 48px 28px; border-right: 1px solid var(--color-line); }
.identity { display: flex; align-items: center; gap: 12px; }
.identity img { width: 48px; height: 48px; object-fit: cover; object-position: center 30%; border-radius: var(--radius); }
.identity strong { display: block; font-size: 17px; line-height: 1.4; white-space: nowrap; }
.identity span span { display: block; color: var(--color-muted); font-size: 14px; }
.navigation-panel { display: flex; flex-direction: column; height: calc(100% - 80px); }
nav { display: grid; gap: 6px; margin-top: 48px; }
nav a { display: flex; align-items: center; gap: 14px; padding: 11px 14px; border-radius: var(--radius); color: var(--color-muted); }
nav a span { width: 20px; font-size: 20px; text-align: center; }
nav a:hover, nav a[aria-current="page"] { background: #f2f2f2; color: var(--color-text); }
.social-links { display: grid; gap: 12px; margin-top: auto; padding: 24px 14px 0; color: var(--color-muted); font-size: 13px; }
.social-links a:hover, footer a:hover { color: var(--color-accent); }
.menu-toggle { display: none; }
.main-column { min-width: 0; padding: 52px 48px 0; }
main { max-width: var(--content-width); margin: auto; min-height: calc(100vh - 170px); }
.intro { margin-bottom: 26px; }
.availability { display: inline-flex; align-items: center; gap: 7px; margin-bottom: 24px; padding: 3px 10px; color: var(--color-accent); background: var(--color-accent-soft); border-radius: 4px; font-size: 13px; font-weight: 500; }
.availability > span { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.intro p { max-width: 630px; margin-top: 16px; color: var(--color-muted); line-height: 1.5; }
.button { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 44px; padding: 9px 16px; background: white; border: 1px solid #8d8d8d; border-radius: var(--radius); color: #646464; font-weight: 500; transition: background .18s, border-color .18s; }
.button span { font-size: 22px; line-height: 1; }
.button:hover { background: var(--color-surface); border-color: var(--color-text); color: var(--color-text); }
.section { margin-top: 48px; padding-top: 42px; border-top: 1px solid var(--color-line); }
.section > h2 { margin-bottom: 28px; }
.section > .button { margin-top: 24px; }
.project-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 26px 22px; }
.project-card { display: block; min-width: 0; }
.project-image { position: relative; overflow: hidden; background: var(--color-surface); border: 1px solid var(--color-line); }
.project-image img { width: 100%; height: auto; aspect-ratio: 1.65; object-fit: cover; transition: transform .3s; }
.project-card:hover img { transform: scale(1.035); }
.project-arrow { position: absolute; right: 12px; bottom: 12px; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: white; opacity: 0; transition: opacity .2s; }
.project-card:hover .project-arrow, .project-card:focus-visible .project-arrow { opacity: 1; }
.project-info { padding: 16px 0 6px; }
.eyebrow { display: block; color: var(--color-muted); text-transform: uppercase; letter-spacing: 1px; font-size: 11px; font-weight: 500; }
.project-info h3 { margin-top: 7px; }
.back-link { display: inline-block; margin-bottom: 28px; color: var(--color-muted); }
.project-intro h1 { font-size: clamp(28px,3vw,38px); }
.project-intro .eyebrow { margin-top: 20px; }
.detail-image { width: 100%; height: auto; max-height: 520px; object-fit: contain; background: var(--color-surface); margin-top: 32px; }
.stack-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.stack-card { padding: 18px; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius); }
.stack-heading { display: flex; align-items: center; gap: 12px; }
.stack-heading h2, .stack-heading h3 { font-size: 17px; margin: 0; }
.stack-heading .muted { font-size: 13px; }
.tech-icon { display: grid; flex-shrink: 0; place-items: center; width: 44px; height: 44px; color: #222; background: white; border: 1px solid var(--color-line); border-radius: 8px; font-weight: 700; letter-spacing: -1px; }
.stack-card > p { color: var(--color-muted); margin-top: 20px; font-size: 14px; }
.prose { margin-top: 38px; color: var(--color-muted); overflow-wrap: break-word; }
.prose h2 { margin: 38px 0 18px; color: var(--color-text); }
.prose p { margin-bottom: 16px; }
.prose + .button { margin-top: 32px; }
.experience { padding: 24px 0; border-bottom: 1px solid var(--color-line); }
.experience h3 { color: var(--color-text); }
.experience .experience-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: 13px; margin: 6px 0 14px; }
form { display: grid; gap: 10px; }
form label { margin-top: 10px; font-weight: 500; }
input, textarea { width: 100%; min-width: 0; padding: 12px 14px; color: var(--color-text); background: var(--color-surface); border: 1px solid #d6d6d6; border-radius: var(--radius); }
textarea { resize: vertical; }
.form-hint, #form-status { color: var(--color-muted); font-size: 13px; }
.form-hint { margin: 8px 0; }
.social-title { margin-top: 28px; }
.contact-social { display: flex; gap: 24px; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; margin-top: 58px; padding: 26px 0; border-top: 1px solid var(--color-line); color: var(--color-muted); font-size: 11px; }
footer div { display: flex; gap: 18px; }
@media (min-width: 1400px) { .main-column { padding: 64px; } }
@media (max-width: 1000px) {
  :root { --sidebar-width: 230px; }
  .sidebar { padding: 38px 18px; }
  .identity strong { font-size: 15px; }
  .identity { gap: 9px; }
  .main-column { padding: 40px 28px 0; }
  .project-grid, .stack-grid { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  .site-shell { display: block; }
  .sidebar { position: relative; height: auto; padding: 24px; border-right: 0; border-bottom: 1px solid var(--color-line); }
  .identity { justify-content: center; }
  .identity strong { font-size: 18px; }
  .menu-toggle { display: flex; position: absolute; left: 20px; top: 32px; border: 0; background: transparent; font-size: 20px; padding: 8px; }
  .navigation-panel { display: none; height: auto; padding-top: 18px; }
  .navigation-panel.is-open { display: flex; }
  nav { margin-top: 8px; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .social-links { display: flex; flex-wrap: wrap; gap: 20px; padding-top: 20px; }
  .main-column { padding: 24px 24px 0; }
  h1 { font-size: 36px; }
  .section { margin-top: 46px; padding-top: 42px; }
  .project-grid { grid-template-columns: 1fr; gap: 28px; }
  .project-image img { aspect-ratio: 1.65; }
  .project-info h3 { font-size: 20px; }
}
@media (max-width: 400px) {
  h1 { font-size: 30px; }
  .identity { justify-content: flex-start; padding-left: 38px; }
  .identity strong { font-size: 15px; }
  .identity span span { font-size: 12px; }
  .identity img { width: 40px; height: 40px; }
  .main-column { padding: 24px 20px 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
.tech-icon img { width: 44px; height: 44px; object-fit: contain; border-radius: 5px; }