:root {
  --bg: #08111f;
  --bg-soft: #0f172a;
  --panel: rgba(15, 23, 42, 0.78);
  --panel-strong: #111c31;
  --text: #e5eefc;
  --muted: #a6b5cf;
  --line: rgba(148, 163, 184, 0.18);
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --shadow: 0 24px 60px rgba(2, 6, 23, 0.45);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.16), transparent 28%),
    linear-gradient(180deg, #08111f 0%, #0a1220 42%, #08111f 100%);
  color: var(--text);
  line-height: 1.65;
}

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

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

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

h1,
 h2,
 h3 {
  margin: 0 0 0.75rem;
  line-height: 1.15;
  color: var(--text);
}

h1 {
  font-size: clamp(2.6rem, 5vw, 4.5rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.15rem;
}

ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(8, 17, 31, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.footer-wrap a:hover,
.footer-wrap a:focus-visible,
.social-links a:hover,
.social-links a:focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.9);
  border-radius: 12px;
  padding: 0.65rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
}

.hero {
  padding: 5.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.9fr;
  gap: 2rem;
  align-items: stretch;
}

.eyebrow,
.section-label {
  display: inline-block;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin-bottom: 1rem;
}

.hero-text {
  max-width: 60ch;
  font-size: 1.06rem;
}

.hero-actions,
.contact-actions,
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero-actions {
  margin: 1.8rem 0 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #062235;
}

.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
}

.quick-facts {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.quick-facts li {
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.55);
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.95rem;
}

.hero-card,
.card,
.featured-panel,
.contact-panel,
.skill-block {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.75rem;
  align-self: start;
}

.profile-placeholder {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.2), rgba(56, 189, 248, 0.35));
  color: var(--text);
  font-weight: 800;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(125, 211, 252, 0.28);
}

.hero-card-role {
  color: var(--text);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.hero-card-org {
  margin-bottom: 1rem;
}

.social-links a {
  color: var(--accent);
  font-weight: 600;
}

.section {
  padding: 4.5rem 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.34), rgba(15, 23, 42, 0.12));
  border-top: 1px solid rgba(148, 163, 184, 0.06);
  border-bottom: 1px solid rgba(148, 163, 184, 0.06);
}

.section-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 2rem;
}

.card-grid {
  display: grid;
  gap: 1.2rem;
}

.card-grid.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card,
.featured-panel,
.contact-panel,
.skill-block {
  padding: 1.4rem;
}

.featured-panel {
  margin-top: 1.2rem;
}

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

.timeline-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.2rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.timeline-item:first-child {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.timeline-meta {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
}

.timeline-org,
.muted {
  color: var(--muted);
  font-weight: 600;
}

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

.skill-block ul {
  display: grid;
  gap: 0.5rem;
}

.contact-section {
  padding-bottom: 5rem;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: center;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.08);
  padding: 1.25rem 0 2rem;
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-wrap p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .contact-panel,
  .card-grid.three-up,
  .card-grid.two-up,
  .skills-grid,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    gap: 0.35rem;
  }
}

@media (max-width: 760px) {
  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 74px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1rem;
    border-radius: 18px;
    background: rgba(10, 18, 32, 0.97);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

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

  .nav-toggle {
    display: inline-block;
  }

  .hero {
    padding-top: 4rem;
  }

  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}