:root {
  color-scheme: dark;
  --bg: #08111f;
  --surface: rgba(255, 255, 255, 0.07);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --text: #f6f8fb;
  --muted: #aeb9c8;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #23d3b6;
  --accent-2: #f0b35a;
  --ink: #07101c;
  --max: 1180px;
  --radius: 8px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* {
  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:
    radial-gradient(circle at 12% 8%, rgba(35, 211, 182, 0.2), transparent 26rem),
    radial-gradient(circle at 88% 20%, rgba(240, 179, 90, 0.13), transparent 22rem),
    linear-gradient(135deg, #08111f 0%, #0d1523 52%, #11151d 100%);
  color: var(--text);
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 4px;
}

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

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  margin-bottom: 1.25rem;
}

h2 {
  max-width: 860px;
  font-size: clamp(1.9rem, 3.6vw, 3.4rem);
  margin-bottom: 0;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 0.7rem;
}

p {
  color: var(--muted);
}

.sr-only,
.skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  z-index: 999;
  width: auto;
  height: auto;
  clip: auto;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  color: var(--ink);
  background: var(--accent);
  border-radius: var(--radius);
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 1rem;
  left: 50%;
  width: min(calc(100% - 2rem), var(--max));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem;
  background: rgba(8, 17, 31, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

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

.brand {
  gap: 0.7rem;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  color: var(--ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 50%;
}

.site-nav {
  gap: 0.25rem;
}

.site-nav a {
  min-height: 2.4rem;
  padding: 0.55rem 0.9rem;
  color: var(--muted);
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
  background: var(--surface-strong);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 1rem;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.section {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 7rem 0;
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  align-items: center;
  gap: 3rem;
  padding-top: 8rem;
}

.eyebrow {
  width: fit-content;
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-copy,
.lead {
  max-width: 760px;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  font-weight: 800;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--ink);
  background: var(--accent);
}

.button-secondary {
  color: var(--text);
  background: var(--surface);
  border-color: var(--line);
}

.hero-panel {
  position: relative;
  display: grid;
  gap: 1rem;
}

.hero-panel img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.signal-card,
.capability-card,
.work-card,
.education-card,
.contact-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.055));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.signal-card {
  margin-top: -5.2rem;
  margin-left: 1.25rem;
  margin-right: 1.25rem;
  padding: 1.1rem;
  backdrop-filter: blur(16px);
}

.signal-card span,
.timeline-meta span,
.education-card span,
.work-label,
.card-index {
  display: block;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.signal-card strong {
  display: block;
  margin: 0.25rem 0;
  font-size: 1.1rem;
}

.signal-card p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.intro-band {
  width: 100%;
  max-width: none;
  padding-inline: max(1rem, calc((100% - var(--max)) / 2));
  background: rgba(255, 255, 255, 0.045);
  border-block: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 2.5rem;
}

.intro-grid,
.contact-card {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 2rem;
  align-items: start;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.metrics article {
  min-height: 8.5rem;
  padding: 1rem;
  background: rgba(8, 17, 31, 0.76);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.metrics strong {
  display: block;
  color: var(--accent);
  font-size: 2.1rem;
  line-height: 1;
}

.metrics span {
  display: block;
  margin-top: 0.8rem;
  color: var(--muted);
}

.capability-grid,
.work-grid,
.education-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.capability-card,
.work-card,
.education-card {
  min-height: 100%;
  padding: 1.25rem;
}

.capability-card p,
.work-card p,
.education-card p {
  margin-bottom: 1rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1.1rem 0 0;
  list-style: none;
}

.tag-list li,
.hero-stack li,
.project-links a {
  padding: 0.42rem 0.62rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.88rem;
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 2rem 0 0;
  list-style: none;
}

.hero-stack li {
  color: var(--muted);
}

.lead + .lead {
  margin-top: 1rem;
}

.project-list,
.cert-list {
  display: grid;
  gap: 0.55rem;
  padding: 0;
  margin: 1rem 0 0;
  color: var(--muted);
  list-style: none;
}

.project-list li {
  padding-left: 1rem;
  border-left: 2px solid var(--line);
}

.project-list strong {
  color: var(--text);
}

.cert-list small {
  display: block;
  color: var(--accent-2);
  font-size: 0.8rem;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 0.38fr 1fr;
  gap: 2rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.timeline-meta strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.1rem;
}

.timeline-content p:last-child {
  margin-bottom: 0;
}

.work-grid {
  grid-template-columns: repeat(3, 1fr);
}

.work-card.featured {
  grid-column: span 2;
  grid-row: span 2;
  background:
    linear-gradient(135deg, rgba(35, 211, 182, 0.18), rgba(255, 255, 255, 0.06)),
    rgba(255, 255, 255, 0.06);
}

.work-card ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
  color: var(--muted);
}

.public-projects {
  margin-top: 1rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.project-links a {
  transition: background 180ms ease, transform 180ms ease;
}

.project-links a:hover {
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.education-grid {
  grid-template-columns: repeat(3, 1fr);
}

.contact-card {
  padding: 2rem;
  align-items: center;
}

.contact-card h2 {
  font-size: clamp(2rem, 4vw, 3.7rem);
}

.contact-list {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
}

.contact-list div {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.contact-list dt {
  color: var(--accent-2);
  font-weight: 800;
}

.contact-list dd {
  margin: 0.25rem 0 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.contact-list a:hover,
.site-footer a:hover {
  color: var(--accent);
}

.site-footer {
  width: min(calc(100% - 2rem), var(--max));
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero,
  .intro-grid,
  .contact-card,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
  }

  .hero-panel {
    max-width: 520px;
  }

  .capability-grid,
  .work-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .work-card.featured {
    grid-column: span 2;
  }

  .metrics,
  .contact-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 0.75rem;
    border-radius: 22px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: rgba(8, 17, 31, 0.94);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
  }

  .nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    min-height: 3rem;
  }

  .section {
    padding-block: 5rem;
  }

  .hero {
    padding-top: 7rem;
  }

  .capability-grid,
  .work-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .work-card.featured {
    grid-column: auto;
  }

  .contact-card {
    padding: 1.25rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}