:root {
  color-scheme: light dark;
  --canvas: #f7f7f4;
  --surface: #fcfcfa;
  --ink: #202126;
  --muted: #62666e;
  --line: #d9dadd;
  --grid-line: #e9e9e7;
  --accent: #084ccf;
  --accent-soft: #e8efff;
  --focus: #084ccf;
  --max-width: 1100px;
  --radius: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #111216;
    --surface: #17191e;
    --ink: #eef0f4;
    --muted: #acb2be;
    --line: #30333a;
    --grid-line: #181a1f;
    --accent: #4482f8;
    --accent-soft: #142b58;
    --focus: #8cb3ff;
  }

}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px),
    var(--canvas);
  background-size: 24px 24px;
  font: 400 1rem/1.6 'IBM Plex Sans', system-ui, sans-serif;
}

a { color: inherit; }

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 1rem;
  padding: .65rem 1rem;
  color: #fff;
  background: var(--accent);
  transform: translateY(-110%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 2;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: var(--canvas);
  backdrop-filter: blur(10px);
}

.nav, .page, .footer-inner { width: min(calc(100% - 2rem), var(--max-width)); margin: 0 auto; }

.nav { display: flex; min-height: 57px; align-items: center; justify-content: space-between; gap: 1rem; }
.brand, .nav-links, .action-row, .tags { display: flex; align-items: center; }
.brand { gap: .6rem; font: 500 .81rem/1 'IBM Plex Mono', monospace; text-decoration: none; letter-spacing: .04em; }
.brand-mark { width: 10px; height: 10px; background: var(--accent); box-shadow: 3px 3px 0 var(--accent-soft); }
.nav-links { gap: .25rem; }
.nav-link { min-height: 44px; display: inline-flex; align-items: center; padding: 0 .7rem; color: var(--muted); font-size: .9rem; text-decoration: none; }
.nav-link:hover, .nav-link[aria-current='page'] { color: var(--accent); }
.nav-link[aria-current='page'] { font-weight: 600; }

.announcement { border-bottom: 1px solid var(--line); background: var(--surface); }
.announcement-inner { width: min(calc(100% - 2rem), var(--max-width)); min-height: 40px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1rem; padding: .65rem 0; margin: 0 auto; font: 500 .72rem/1.2 'IBM Plex Mono', monospace; letter-spacing: .04em; text-transform: uppercase; }
.announcement-label { color: var(--accent); }
.announcement a { color: var(--muted); text-decoration: none; }
.announcement a:hover { color: var(--accent); }

.page { padding: clamp(3rem, 7vw, 6.5rem) 0 4rem; }
.eyebrow, .meta, .section-label, .period, .tag, .availability { font: 500 .75rem/1.35 'IBM Plex Mono', monospace; letter-spacing: .06em; text-transform: uppercase; }
.eyebrow, .section-label { color: var(--accent); }
.eyebrow { margin: 0 0 1.25rem; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: 'IBM Plex Serif', Georgia, serif; font-weight: 500; letter-spacing: -.035em; }
h1 { max-width: 820px; margin-bottom: 1.25rem; font-size: clamp(2.75rem, 4vw, 4rem); line-height: .98; }
h2 { margin-bottom: 1rem; font-size: clamp(1.9rem, 3vw, 2.6rem); line-height: 1.05; }
h3 { margin-bottom: .25rem; font-size: 1.2rem; line-height: 1.25; }
.lede { max-width: 680px; margin-bottom: 1.75rem; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.28rem); }
.action-row { flex-wrap: wrap; gap: .75rem; }
.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem .85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: inset 0 -2px 0 rgb(0 0 0 / 12%);
  font-size: .9rem;
  font-weight: 500;
  text-decoration: none;
}
.button:hover { border-color: var(--accent); color: var(--accent); }
.button-primary { border-color: var(--accent); color: #fff; background: var(--accent); box-shadow: inset 0 -2px 0 rgb(0 0 0 / 32%); }
.button-primary:hover { color: #fff; filter: brightness(1.08); }
@media (prefers-color-scheme: dark) {
  .button-primary,
  .button-primary:hover { color: #111216; }
}
.icon { width: 1.05rem; height: 1.05rem; fill: currentColor; flex: none; }

.profile-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 320px); align-items: center; gap: clamp(2rem, 7vw, 6rem); padding-bottom: clamp(3rem, 8vw, 6.5rem); border-bottom: 1px solid var(--line); }
.profile-card { padding: .75rem; border: 1px solid var(--line); background: var(--surface); }
.profile-window { align-self: center; }
.window-bar { min-height: 32px; display: flex; align-items: center; gap: .75rem; padding: 0 .35rem .65rem; color: var(--muted); font: 500 .7rem/1 'IBM Plex Mono', monospace; letter-spacing: .04em; }
.window-controls { display: flex; gap: .3rem; }
.window-controls i { width: 7px; height: 7px; display: block; border: 1px solid var(--line); border-radius: 50%; }
.profile-card img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; filter: grayscale(100%) contrast(1.08); }
.profile-caption { display: flex; justify-content: space-between; gap: .75rem; padding-top: .65rem; color: var(--muted); font: 500 .68rem/1.35 'IBM Plex Mono', monospace; }
.profile-card p { margin: .7rem 0 0; color: var(--muted); font-size: .85rem; }
.availability { display: inline-flex; align-items: center; gap: .5rem; margin-bottom: .75rem; color: var(--muted); }
.availability::before { width: 7px; height: 7px; content: ''; background: #16803c; border-radius: 50%; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; border-bottom: 1px solid var(--line); }
.metric { min-height: 160px; display: flex; flex-direction: column; padding: 1.25rem; border-right: 1px solid var(--line); }
.metric:first-child { border-left: 1px solid var(--line); }
.metric-label { color: var(--muted); font-size: .82rem; line-height: 1.35; }
.metric-value { order: -1; margin: 0 0 .6rem; font: 500 clamp(2.4rem, 5vw, 4.5rem)/1 'IBM Plex Serif', Georgia, serif; letter-spacing: -.06em; }

.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; border-bottom: 1px solid var(--line); scroll-margin-top: 4rem; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(0, 2fr); gap: 2rem; margin-bottom: 2.5rem; }
.section-heading p { max-width: 610px; margin: 0; color: var(--muted); }
.capability-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability { min-height: 150px; padding: 1.35rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.capability p { margin: .7rem 0 0; color: var(--muted); font-size: .92rem; }
.tags { flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }
.tag { padding: .25rem .4rem; border: 1px solid var(--line); color: var(--muted); letter-spacing: .03em; text-transform: none; }

.project-list { border-top: 1px solid var(--line); }
.project { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.project:hover h3 { color: var(--accent); }
.project p { max-width: 650px; margin: .4rem 0 0; color: var(--muted); }
.project-arrow { align-self: start; color: var(--accent); font-size: 1.4rem; }

.experience-section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; border-bottom: 1px solid var(--line); scroll-margin-top: 4rem; }
.experience-header { max-width: 960px; padding-bottom: clamp(3rem, 8vw, 6.5rem); }
.experience-header h2 { max-width: 960px; }
.timeline { border-top: 1px solid var(--line); }
.role { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 2rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.period { color: var(--muted); }
.role-header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.company { margin: .25rem 0 .85rem; color: var(--accent); font-weight: 600; }
.role-copy { max-width: 700px; margin-bottom: 1rem; color: var(--muted); }
.impact { padding-left: 1rem; border-left: 2px solid var(--accent); color: var(--ink); font-weight: 500; }
.case-study { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; padding: 1.5rem; border: 1px solid var(--line); background: var(--surface); }
.case-study p { color: var(--muted); }
.case-study .impact { margin: 1.25rem 0; }
.closing { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; padding-top: clamp(3.5rem, 8vw, 6.5rem); }
.closing p { color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; min-height: 100px; align-items: center; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .85rem; }
.footer-inner a { color: var(--ink); }

@media (max-width: 720px) {
  .nav { width: min(calc(100% - 1rem), var(--max-width)); }
  .brand { font-size: .7rem; }
  .nav-link { padding: 0 .4rem; font-size: .8rem; }
  .profile-grid, .section-heading, .case-study, .closing { grid-template-columns: 1fr; }
  .profile-grid { align-items: start; }
  .profile-card { max-width: 240px; }
  .metrics, .capability-list { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(3) { border-left: 1px solid var(--line); }
  .metric { min-height: 130px; }
  .capability { min-height: auto; }
  .role { grid-template-columns: 1fr; gap: .75rem; }
  .role-header { display: block; }
  .role-header .tag { display: inline-block; margin-top: .5rem; }
}

@media (max-width: 430px) {
  .nav { align-items: flex-start; padding: .45rem 0; }
  .brand { padding-top: .8rem; }
  .nav-links { flex-wrap: wrap; justify-content: flex-end; }
  .metrics, .capability-list { grid-template-columns: 1fr; }
  .metric, .metric:first-child, .metric:nth-child(3) { border-left: 1px solid var(--line); }
  .project { grid-template-columns: 1fr; }
  .project-arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}