:root {
  color-scheme: dark;
  --bg: #050914;
  --bg-2: #081426;
  --text: #eef6ff;
  --muted: #a9b9cc;
  --line: rgba(168, 207, 255, 0.18);
  --blue: #4ea1ff;
  --cyan: #7df4ff;
  --violet: #9b8cff;
  --card: rgba(10, 23, 42, 0.72);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(78, 161, 255, 0.28), transparent 32rem),
    radial-gradient(circle at 85% 18%, rgba(125, 244, 255, 0.14), transparent 24rem),
    linear-gradient(145deg, var(--bg), #07101e 58%, #03050b);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.24;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  backdrop-filter: blur(18px);
  background: rgba(5, 9, 20, 0.72);
  border-bottom: 1px solid var(--line);
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand {
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid rgba(125, 244, 255, 0.38);
  border-radius: 0.8rem;
  object-fit: cover;
  box-shadow: 0 0 28px rgba(78, 161, 255, 0.42);
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover { color: var(--text); }

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

.section,
.hero {
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.section-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.eyebrow,
.card-kicker,
.signal-label {
  margin: 0 0 0.9rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 12ch;
  margin-bottom: 1.4rem;
  font-size: clamp(3.6rem, 10vw, 7.8rem);
  line-height: 0.88;
  letter-spacing: -0.08em;
}

h2 {
  max-width: 13ch;
  margin-bottom: 1.2rem;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

h3 {
  margin-bottom: 0.8rem;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.lede,
.section p,
.card p,
.principle-list {
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.7;
}

.lede { max-width: 40rem; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  color: #031021;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 18px 50px rgba(78, 161, 255, 0.25);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.signal-card,
.card,
.contact {
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: var(--card);
  box-shadow: var(--shadow);
}

.signal-card {
  position: relative;
  min-height: 28rem;
  padding: 1rem;
  overflow: hidden;
}

.logo-card {
  display: grid;
  place-items: center;
  background:
    linear-gradient(145deg, rgba(10, 23, 42, 0.76), rgba(5, 9, 20, 0.52)),
    var(--card);
}

.logo-card img {
  width: 100%;
  height: 100%;
  max-height: 30rem;
  border-radius: 1.35rem;
  object-fit: cover;
  box-shadow: inset 0 0 0 1px rgba(125, 244, 255, 0.18);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

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

.project-cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card { padding: 1.4rem; }

.project-card {
  display: flex;
  flex-direction: column;
}

.project-card a,
.project-status {
  margin-top: auto;
  padding-top: 1.1rem;
  color: var(--cyan);
  font-weight: 800;
  text-decoration: none;
}

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

.project-card a:hover { color: var(--text); }

.principle-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.principle-list li {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

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

.contact {
  padding: clamp(1.5rem, 5vw, 3rem);
}

.contact h2 { max-width: 16ch; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 820px) {
  .site-header,
  .site-footer,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-grid,
  .split,
  .cards,
  .project-cards {
    grid-template-columns: 1fr;
  }

  h1 { max-width: 11ch; }

  .signal-card { min-height: 22rem; }
}