:root {
  --bg: #050607;
  --panel: #0c1012;
  --panel-soft: #101517;
  --text: #f3f6f4;
  --muted: #a7afaa;
  --subtle: #78827c;
  --line: #273034;
  --accent: #68c7bd;
  --accent-strong: #9be3d9;
  --amber: #d8a455;
  --black: #000000;
  --max-width: 1060px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  padding: 18px 24px;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    padding 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(5, 6, 7, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  padding-top: 12px;
  padding-bottom: 12px;
}

.site-nav,
.section-inner {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.88rem;
  font-weight: 850;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
}

.nav-links a {
  padding: 10px 11px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 720;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
}

.hero {
  min-height: 62svh;
  display: flex;
  align-items: flex-end;
  padding: 132px 24px 70px;
}

.hero-inner {
  width: min(100%, var(--max-width));
}

.eyebrow,
.section-kicker,
.item-meta {
  margin: 0 0 13px;
  color: var(--amber);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 4.8rem;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.social-link:hover,
.social-link:focus-visible {
  color: var(--accent-strong);
  transform: translateY(-1px);
  outline: none;
}

.linkedin-mark {
  font-size: 1.34rem;
  font-weight: 900;
  line-height: 1;
}

.github-mark {
  font-size: 1.02rem;
  font-weight: 850;
  line-height: 1;
}

.email-link {
  border-bottom: 1px solid currentColor;
  font-size: 0.94rem;
  font-weight: 760;
}

.section {
  padding: 76px 24px;
  border-top: 1px solid var(--line);
}

.section-muted {
  background: var(--panel-soft);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.76fr) minmax(320px, 1.24fr);
  gap: 56px;
  align-items: start;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.section-heading-wide {
  max-width: 920px;
}

.section h2 {
  margin: 0;
  font-size: 2.22rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.section-subtitle {
  max-width: 860px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.55;
}

.section-copy {
  display: grid;
  gap: 16px;
}

.section-copy p,
.list-row p,
.card p,
.timeline-card p,
.work-summary p,
.impact-list span {
  margin: 0;
  color: var(--muted);
}

.list-stack {
  display: grid;
  gap: 10px;
}

.list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.025);
}

.list-row h3,
.card h3,
.timeline-card h3,
.work-summary h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.18;
}

.work-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--panel);
}

.work-summary {
  display: flex;
  align-items: stretch;
}

.work-summary h3 {
  font-size: 1.32rem;
}

.impact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.impact-list li {
  display: grid;
  grid-template-columns: minmax(120px, 0.36fr) minmax(0, 1fr);
  gap: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.impact-list strong {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 850;
}

.impact-list span {
  display: block;
  font-size: 0.94rem;
  line-height: 1.45;
}

.link-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.link-group a,
.card a,
.timeline-card a {
  width: fit-content;
  border-bottom: 1px solid currentColor;
  color: var(--accent-strong);
  font-size: 0.92rem;
  font-weight: 820;
}

.timeline-card h3 a {
  font-size: inherit;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.card,
.timeline-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: 22px;
}

.card a {
  margin-top: auto;
  padding-top: 28px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 14px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 5px;
  width: 1px;
  background: var(--line);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 24px minmax(130px, 170px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.timeline-marker {
  width: 11px;
  height: 11px;
  margin-top: 16px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 0 6px var(--panel-soft);
}

.timeline-meta {
  padding-top: 12px;
  color: var(--subtle);
  font-size: 0.82rem;
  font-weight: 850;
  text-transform: uppercase;
}

.timeline-card {
  padding: 20px;
}

.site-footer {
  padding: 26px 24px;
  color: var(--subtle);
  background: var(--black);
  font-size: 0.84rem;
}

.site-footer p {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

@media (max-width: 900px) {
  .section-grid,
  .card-grid,
  .list-row,
  .work-showcase {
    grid-template-columns: 1fr;
  }

  .link-group {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 12px 16px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  body.nav-open .nav-links {
    display: flex;
  }

  .nav-links a {
    padding: 14px;
  }

  .hero {
    min-height: auto;
    padding: 112px 18px 54px;
  }

  .hero h1 {
    font-size: 3.15rem;
  }

  .section {
    padding: 58px 18px;
  }

  .section h2 {
    font-size: 1.86rem;
  }

  .impact-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .timeline-item {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 14px;
  }

  .timeline-meta,
  .timeline-card {
    grid-column: 2;
  }

  .timeline-meta {
    padding-top: 0;
  }

  .timeline-marker {
    grid-row: 1 / span 2;
  }
}