:root {
  --navy-950: #06111f;
  --navy-900: #081a2e;
  --navy-800: #0b2744;
  --navy-700: #12385f;
  --blue-500: #2f80ed;
  --blue-300: #8dc5ff;
  --white: #ffffff;
  --ice: #eef7ff;
  --muted: #b8c7d9;
  --line: rgba(255, 255, 255, 0.14);
  --card: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--white);
  background: var(--navy-950);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(47, 128, 237, 0.32), transparent 32rem),
    linear-gradient(135deg, var(--navy-950), var(--navy-900) 48%, #03101f);
}

.grid-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(14px);
  opacity: 0.55;
  animation: float 9s ease-in-out infinite;
}

.orb-one {
  width: 360px;
  height: 360px;
  right: 8%;
  top: 14%;
  background: rgba(47, 128, 237, 0.22);
}

.orb-two {
  width: 260px;
  height: 260px;
  left: 6%;
  bottom: 8%;
  background: rgba(141, 197, 255, 0.14);
  animation-delay: -3s;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  backdrop-filter: blur(18px);
  background: rgba(6, 17, 31, 0.74);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 0.8rem;
  color: var(--navy-950);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.08);
}

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

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 180ms ease, transform 180ms ease;
}

.nav-links a:hover {
  color: var(--white);
  transform: translateY(-1px);
}

.section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 6rem 0;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: 2rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--blue-300);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 850px;
  font-size: clamp(2.55rem, 6vw, 5.75rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.45rem;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.hero-text {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.btn.primary {
  background: var(--white);
  color: var(--navy-950);
}

.btn.secondary {
  border: 1px solid var(--line);
  color: var(--white);
  background: rgba(255,255,255,0.06);
}

.hero-card,
.project-card,
.tab-panel {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(255,255,255,0.11), rgba(255,255,255,0.045));
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.5rem;
  border-radius: 2rem;
  transform: rotate(1deg);
}

.card-topline,
.project-kicker {
  color: var(--blue-300);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.metric {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.metric span {
  font-weight: 900;
  color: var(--white);
  opacity: 0.45;
}

.metric p {
  color: var(--ice);
  margin-bottom: 0;
}

.section-heading {
  max-width: 800px;
  margin-bottom: 2rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.split p {
  color: var(--muted);
  font-size: 1.05rem;
}

.tabs {
  border: 1px solid var(--line);
  border-radius: 2rem;
  padding: 1rem;
  background: rgba(255,255,255,0.045);
}

.tab-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.tab-button {
  cursor: pointer;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255,255,255,0.04);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

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

.tab-button.active {
  background: var(--white);
  color: var(--navy-950);
}

.tab-panel {
  display: none;
  border-radius: 1.5rem;
  padding: 1.5rem;
}

.tab-panel.active {
  display: block;
  animation: softIn 260ms ease both;
}

.tab-panel p {
  color: var(--muted);
  max-width: 820px;
  margin-bottom: 0;
}

.project-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 1rem;
}

.project-card {
  min-height: 280px;
  border-radius: 2rem;
  padding: 1.5rem;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(141, 197, 255, 0.45);
  background: linear-gradient(145deg, rgba(255,255,255,0.14), rgba(255,255,255,0.055));
}

.project-card.featured {
  grid-row: span 2;
}

.project-card p {
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0;
}

.tags span {
  color: var(--ice);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.045);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.82rem;
}

.text-link {
  color: var(--blue-300);
  text-decoration: none;
  font-weight: 900;
}

.contact {
  display: grid;
  grid-template-columns: 1fr 0.75fr;
  gap: 2rem;
  align-items: start;
  border-top: 1px solid var(--line);
}

.contact-links {
  display: grid;
  gap: 0.75rem;
}

.contact-links a {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  color: var(--ice);
  background: rgba(255,255,255,0.045);
  transition: transform 180ms ease, background 180ms ease;
}

.contact-links a:hover {
  transform: translateX(4px);
  background: rgba(255,255,255,0.085);
}

footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -22px, 0); }
}

@keyframes softIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 860px) {
  .navbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .split,
  .project-grid,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero-card {
    transform: none;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 4rem 0;
  }

  .nav-links {
    gap: 0.7rem;
  }

  h1 {
    font-size: 2.65rem;
  }
}