.astro-header-shell {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: radial-gradient(circle at top left, rgba(80, 120, 255, 0.2), transparent),
              rgba(5, 7, 18, 0.8);
  border-bottom: 1px solid rgba(140, 160, 255, 0.16);
}

.astro-header-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.astro-main-root {
  flex: 1 0 auto;
  max-width: 1040px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1rem 3.5rem;
}

.astro-footer {
  flex-shrink: 0;
  padding: 0.75rem 1rem 1.25rem;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(200, 210, 255, 0.6);
  border-top: 1px solid rgba(140, 160, 255, 0.12);
  background: radial-gradient(circle at bottom right, rgba(120, 255, 255, 0.15), transparent),
              rgba(5, 7, 18, 0.96);
}

.astro-screen {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.astro-home-title {
  font-size: 2.4rem;       /* 👈 main size knob for the heading */
  line-height: 1.1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.astro-screen-title {
  font-size: 2.4rem;
  font-weight: 600;
}

.astro-flex-row {
  display: flex;
  flex-direction: row;
  gap: 1rem;
}

.astro-flex-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.astro-card {
  border-radius: 18px;
  padding: 1.2rem 1.3rem;
  background: radial-gradient(circle at top left, rgba(120, 255, 255, 0.08), transparent 60%),
              rgba(10, 12, 30, 0.95);
  border: 1px solid rgba(160, 180, 255, 0.12);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.55),
    0 0 40px rgba(60, 180, 255, 0.25);
}

.astro-two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .astro-two-column {
    grid-template-columns: minmax(0, 1fr);
  }
}