:root {
  --bg: #0b1020;
  --bg-soft: #121a2d;
  --panel: #172235;
  --panel-alt: #101b2f;
  --text: #e8edf8;
  --muted: #a9b4c8;
  --line: rgba(255, 255, 255, 0.08);
  --brand: #7dd3fc;
  --brand-strong: #38bdf8;
  --accent: #c4b5fd;
  --success: #86efac;
  --shadow: 0 20px 40px rgba(15, 23, 42, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #0b1020 0%, #0f172a 100%);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

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

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(11, 16, 32, 0.72);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--muted);
}

.nav-links a {
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.hero,
.page-hero {
  padding: 5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.75rem;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
}

h1, h2, h3 {
  margin-top: 0;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  margin: 0 0 1rem;
  font-size: clamp(1.08rem, 2vw, 1.5rem);
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.75rem;
}

.lead {
  max-width: 60ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  color: #081120;
  font-weight: 700;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  color: var(--muted);
}

.social-row a {
  color: var(--muted);
}

.social-row a:hover,
.contact-links a:hover,
.site-footer a:hover {
  color: var(--text);
}

.hero-card,
.info-card,
.project-card,
.contact-box {
  background: linear-gradient(180deg, rgba(23, 34, 53, 0.96), rgba(16, 27, 47, 0.96));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 2rem;
}

.card-tag,
.project-tag {
  display: inline-block;
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(125, 211, 252, 0.12);
  color: var(--brand);
  border: 1px solid rgba(125, 211, 252, 0.25);
}

.hero-card h2 {
  margin-top: 1rem;
  font-size: 1.75rem;
}

.hero-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.section {
  padding: 4rem 0;
}

.alt {
  background: rgba(15, 23, 42, 0.4);
}

.two-column {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.section-heading {
  margin-bottom: 2rem;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
}

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

.info-card {
  padding: 1.5rem;
}

.info-card h3 {
  margin-bottom: 0.75rem;
}

.info-card p,
.project-card p,
.project-card li,
.contact-links a {
  color: var(--muted);
}

.contact-box {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  justify-content: flex-end;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
  color: var(--muted);
}

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

.footer-content nav {
  display: flex;
  gap: 1.25rem;
}

.narrow {
  max-width: 720px;
}

.project-list {
  display: grid;
  gap: 1.5rem;
}

.project-card {
  padding: 1.75rem;
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.project-year {
  color: var(--muted);
  font-weight: 700;
}

.project-card ul {
  margin: 1rem 0;
  padding-left: 1.2rem;
}

.project-card a {
  color: var(--brand);
  font-weight: 700;
}

.page-links {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 1.5rem;
}

.page-links a,
.mini-link a,
.info-card a {
  color: var(--brand);
  font-weight: 700;
}

.content-card {
  background: linear-gradient(180deg, rgba(23, 34, 53, 0.96), rgba(16, 27, 47, 0.96));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 2rem;
}

.feature-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

@media (max-width: 800px) {
  .hero-grid,
  .two-column,
  .three-up,
  .contact-box {
    grid-template-columns: 1fr;
    display: grid;
  }

  .contact-box {
    justify-content: stretch;
  }

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

  .nav {
    flex-direction: column;
    justify-content: center;
    padding: 0.8rem 0 1rem;
  }

  .nav-links {
    gap: 1rem;
    flex-wrap: wrap;
  }

  .hero,
  .page-hero,
  .section {
    padding-top: 3rem;
  }

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