:root {
  --ink: #111111;
  --paper: #f7f6f1;
  --surface: #ffffff;
  --accent: #ffd400;
  --muted: #6b6b66;
  --line: #d9d7cf;
  --max: 1180px;
  --pad: clamp(1rem, 3vw, 2rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
a:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--accent);
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }

.shell {
  width: min(calc(100% - (2 * var(--pad))), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--ink);
  background: rgba(247, 246, 241, .96);
  backdrop-filter: blur(8px);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.header-inner { min-height: 72px; }
.brand {
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  letter-spacing: -.03em;
}
.nav {
  display: flex;
  gap: clamp(.9rem, 3vw, 2rem);
  font-size: .95rem;
}
.nav a {
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.nav a:hover,
.nav a[aria-current="page"] { border-color: var(--accent); }

.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.hero,
.page-hero {
  position: relative;
  padding-block: clamp(5rem, 12vw, 9rem);
  border-bottom: 1px solid var(--ink);
}
.eyebrow,
.section-label {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .72rem;
  font-weight: 700;
}
.hero h1,
.page-hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(3.2rem, 10vw, 8.2rem);
  line-height: .9;
  letter-spacing: -.075em;
}
.hero-lead {
  max-width: 720px;
  margin: 2rem 0 0;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  line-height: 1.35;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: .8rem 1rem;
  border: 1px solid var(--ink);
  text-decoration: none;
  font-weight: 700;
}
.button-primary { background: var(--accent); }
.button-secondary { background: transparent; }
.button:hover:not(.button-disabled) { transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--ink); }
.button-disabled {
  color: var(--muted);
  border-color: var(--line);
  cursor: not-allowed;
}
.accent-block {
  position: absolute;
  top: 3.5rem;
  right: 0;
  width: min(38vw, 420px);
  height: 10px;
  background: var(--accent);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--ink);
}
.section-content h2 {
  margin: 0 0 2rem;
  max-width: 850px;
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -.05em;
}
.measure { max-width: 840px; }
.measure p,
.section-content > p {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.capability-grid,
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.capability-card,
.project-card {
  min-height: 220px;
  padding: 1.5rem;
  background: var(--paper);
}
.capability-card h3,
.project-card h3,
.learning-list h3,
.timeline h3,
.project-list h3 {
  margin: 0 0 .75rem;
  font-size: 1.25rem;
}
.capability-card p,
.project-card p { margin: 0; }
.project-index {
  margin-bottom: 2.5rem;
  font-size: .8rem;
  font-weight: 700;
}
.project-status {
  display: inline-block;
  margin-top: 1.5rem;
  padding-top: .5rem;
  border-top: 4px solid var(--accent);
  font-size: .82rem;
  font-weight: 700;
}

.timeline,
.learning-list,
.project-list {
  border-top: 1px solid var(--ink);
}
.timeline-item,
.learning-list article,
.project-list-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.timeline-meta {
  font-size: .82rem;
  color: var(--muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.tag-list li {
  border: 1px solid var(--ink);
  padding: .6rem .75rem;
  background: var(--surface);
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}
.text-link {
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.compact-list {
  padding-left: 1.25rem;
  margin: 1rem 0 0;
}

.contact-strip { background: var(--accent); }
.contact-lead { max-width: 600px; }
.contact-details {
  display: grid;
  gap: .8rem;
  margin-top: 2rem;
}
.contact-link {
  width: fit-content;
  font-size: clamp(1.25rem, 3vw, 2.4rem);
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
  word-break: break-word;
}

.site-footer { padding-block: 2rem; }
.footer-inner {
  align-items: flex-start;
  flex-direction: column;
  font-size: .85rem;
}
.footer-inner p { margin: 0; }

@media (min-width: 760px) {
  .section-grid { grid-template-columns: minmax(130px, 1fr) minmax(0, 5fr); }
  .hero.section-grid,
  .page-hero.section-grid { grid-template-columns: minmax(130px, 1fr) minmax(0, 5fr); }
  .hero-copy { grid-column: 2; }
  .hero .eyebrow,
  .page-hero .eyebrow { grid-column: 1; }
  .page-hero > div:nth-child(2) { grid-column: 2; }
  .capability-grid,
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline-item { grid-template-columns: 160px 1fr; }
  .project-list-item { grid-template-columns: 80px 1fr; }
  .footer-inner { flex-direction: row; align-items: center; }
}

@media (min-width: 1024px) {
  .capability-grid { grid-template-columns: repeat(4, 1fr); }
  .project-grid { grid-template-columns: repeat(3, 1fr); }
}

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