:root {
  color-scheme: light;
  --paper: #f6f8f4;
  --surface: #ffffff;
  --surface-soft: #edf3ec;
  --ink: #151715;
  --muted: #5d665f;
  --line: #d7dfd5;
  --pine: #173b2f;
  --teal: #0f7b6c;
  --copper: #b85f2b;
  --gold: #b8902d;
  --plum: #594a8f;
  --shadow: 0 18px 45px rgba(20, 32, 26, 0.12);
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(237, 243, 236, 0.72), rgba(246, 248, 244, 0) 420px),
    var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 10;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--surface);
  padding: 10px 14px;
  border-radius: 6px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 18px 0;
  backdrop-filter: blur(18px);
}

.brand,
.primary-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(23, 59, 47, 0.24);
  border-radius: 8px;
  background: var(--pine);
  color: var(--surface);
}

.primary-nav {
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(23, 59, 47, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 8px 24px rgba(18, 30, 24, 0.06);
}

.primary-nav a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  background: var(--surface-soft);
  color: var(--pine);
  outline: none;
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 48px;
  width: min(100% - 32px, var(--max-width));
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  padding: 74px 0 52px;
  align-items: center;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--copper);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.08;
}

h1 {
  margin-bottom: 24px;
  font-size: 58px;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 38px;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.hero-lede,
.section-heading p,
.section-copy p,
.resume-section p,
.contact-section p {
  color: var(--muted);
  font-size: 18px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: var(--pine);
  color: var(--surface);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #235342;
  outline: none;
}

.button-secondary {
  border-color: rgba(23, 59, 47, 0.22);
  background: rgba(255, 255, 255, 0.68);
  color: var(--pine);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(15, 123, 108, 0.44);
  background: var(--surface);
  outline: none;
}

.hero-visual {
  position: relative;
  min-height: 520px;
  border: 1px solid rgba(23, 59, 47, 0.15);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(23, 59, 47, 0.96), rgba(15, 123, 108, 0.86)),
    var(--pine);
  box-shadow: var(--shadow);
  overflow: hidden;
}

#signal-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-panel {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: min(320px, calc(100% - 48px));
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(14, 28, 23, 0.72);
  color: var(--surface);
  backdrop-filter: blur(16px);
}

.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 14px;
}

.panel-row:last-child {
  border-bottom: 0;
}

.panel-row span {
  color: rgba(255, 255, 255, 0.72);
}

.panel-row strong {
  color: #f7d58a;
  font-size: 13px;
  text-align: right;
}

.focus-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  overflow: hidden;
}

.focus-strip span {
  min-height: 64px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.72);
  color: var(--pine);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}

.section {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 80px 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 64px;
}

.section-copy p:last-child {
  margin-bottom: 0;
}

.band {
  width: 100%;
  max-width: none;
  padding: 80px max(16px, calc((100vw - var(--max-width)) / 2));
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.feature-grid,
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.project-card,
.research-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.feature-card,
.project-card {
  padding: 26px;
}

.feature-card:nth-child(1) {
  border-top: 4px solid var(--teal);
}

.feature-card:nth-child(2) {
  border-top: 4px solid var(--gold);
}

.feature-card:nth-child(3) {
  border-top: 4px solid var(--plum);
}

.feature-card p,
.project-card p,
.research-list p {
  color: var(--muted);
  margin-bottom: 0;
}

.research-list {
  display: grid;
  gap: 16px;
}

.research-list article {
  padding: 22px;
}

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.project-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.project-meta span:last-child {
  color: var(--copper);
  text-align: right;
}

.resume-section,
.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  border-top: 1px solid var(--line);
}

.resume-section > div,
.contact-section > div {
  max-width: 760px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 32px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .primary-nav {
    width: 100%;
    justify-content: space-between;
    overflow-x: auto;
  }

  .hero,
  .two-column {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .feature-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .focus-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .resume-section,
  .contact-section,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-header,
  .hero,
  .focus-strip,
  .section,
  .site-footer {
    width: min(100% - 24px, var(--max-width));
  }

  .primary-nav a {
    padding: 0 10px;
  }

  .hero {
    min-height: auto;
    padding: 34px 0 44px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  .hero-lede,
  .section-heading p,
  .section-copy p,
  .resume-section p,
  .contact-section p {
    font-size: 16px;
  }

  .hero-visual {
    min-height: 420px;
  }

  .focus-strip {
    grid-template-columns: 1fr;
  }

  .band {
    padding: 62px 12px;
  }

  .section {
    padding: 62px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}