:root {
  --canvas: #f5f7f6;
  --paper: #ffffff;
  --ink: #101314;
  --muted: #5f686c;
  --soft: #eef3f2;
  --line: #d8dfdf;
  --line-strong: #b9c6c5;
  --teal: #087568;
  --teal-dark: #064d47;
  --blue: #315bdc;
  --amber: #b46214;
  --rose: #a23a5b;
  --shadow: 0 24px 60px rgba(16, 19, 20, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(16, 19, 20, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(16, 19, 20, 0.04) 1px, transparent 1px),
    var(--canvas);
  background-size: 44px 44px;
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0;
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.contact-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--paper);
  color: var(--teal-dark);
  font-size: 0.82rem;
  box-shadow: 0 8px 20px rgba(16, 19, 20, 0.06);
}

.nav-links {
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(216, 223, 223, 0.86);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
}

.nav-links a {
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a:hover {
  background: var(--soft);
  color: var(--ink);
}

main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 84px);
  padding: 54px 0 78px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal-dark);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(4.5rem, 12vw, 9rem);
  line-height: 0.88;
  letter-spacing: 0;
}

h2 {
  max-width: 860px;
  margin-bottom: 16px;
  font-size: clamp(2rem, 4.2vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.18;
}

.headline {
  max-width: 760px;
  color: #30383b;
  font-size: clamp(1.05rem, 1.6vw, 1.34rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 800;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.button.secondary:hover {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.signal-panel,
.project-card,
.evidence-rail article,
.stack-grid > div,
.matrix-grid > div,
.contact {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.signal-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.profile-snapshot {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.avatar {
  width: 92px;
  height: 92px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  object-fit: cover;
}

.panel-label,
.signal-grid span,
.project-type,
.proof-list dt,
.evidence-rail span,
.stack-grid span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.profile-snapshot strong {
  display: block;
  max-width: 300px;
  font-size: 1.3rem;
  line-height: 1.16;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.signal-grid > div {
  min-height: 116px;
  padding: 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-grid strong {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
  line-height: 1.2;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 0 52px;
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.66);
}

.signal-strip > div {
  min-height: 188px;
  padding: 18px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.signal-strip span {
  display: block;
  margin-bottom: 24px;
  color: var(--blue);
  font-weight: 900;
}

.signal-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.04rem;
}

.signal-strip p,
.section-heading p,
.project-card p,
.evidence-rail p,
.stack-grid p {
  color: var(--muted);
}

.section {
  padding: 78px 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 32px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-card {
  display: grid;
  min-height: 280px;
  align-content: space-between;
  gap: 20px;
  padding: 22px;
}

.project-card.feature {
  grid-column: span 2;
  background:
    linear-gradient(135deg, rgba(8, 117, 104, 0.1), transparent 42%),
    var(--paper);
}

.project-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.project-topline a,
.contact-links a,
.matrix-grid a {
  color: var(--teal-dark);
  font-weight: 850;
}

.project-topline a:hover,
.contact-links a:hover,
.matrix-grid a:hover {
  color: var(--blue);
}

.proof-list {
  display: grid;
  gap: 10px;
  margin-bottom: 0;
}

.proof-list div {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.proof-list dd {
  margin: 0;
  color: #273134;
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 48px;
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 92px;
}

.evidence-rail {
  display: grid;
  gap: 14px;
}

.evidence-rail article {
  padding: 22px;
}

.evidence-rail h3 {
  max-width: 640px;
  margin-top: 12px;
  font-size: clamp(1.2rem, 2vw, 1.74rem);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stack-grid > div {
  min-height: 190px;
  padding: 20px;
}

.stack-grid span {
  color: var(--rose);
}

.repo-matrix {
  display: grid;
  grid-template-columns: minmax(260px, 0.48fr) minmax(0, 1fr);
  gap: 30px;
}

.matrix-heading {
  max-width: 460px;
}

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

.matrix-grid > div {
  display: grid;
  gap: 9px;
  min-height: 232px;
  align-content: start;
  padding: 20px;
}

.matrix-grid h3 {
  margin-bottom: 8px;
  color: var(--ink);
}

.matrix-grid a {
  width: max-content;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 54px 0 90px;
  padding: 28px;
}

.contact h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(1.45rem, 2.4vw, 2.6rem);
  line-height: 1.05;
}

.contact-links {
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.contact-links a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--canvas);
  padding: 0 14px;
}

@media (max-width: 980px) {
  .hero,
  .split,
  .repo-matrix,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 46px;
  }

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

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

  .sticky-heading {
    position: static;
  }
}

@media (max-width: 680px) {
  .site-header,
  main {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
  }

  h1 {
    font-size: clamp(4rem, 24vw, 6rem);
  }

  .hero {
    gap: 34px;
    padding-bottom: 42px;
  }

  .profile-snapshot,
  .signal-grid,
  .signal-strip,
  .project-grid,
  .stack-grid,
  .matrix-grid {
    grid-template-columns: 1fr;
  }

  .project-card.feature {
    grid-column: auto;
  }

  .project-topline,
  .contact {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-links {
    justify-content: flex-start;
  }
}