/* layout.css */

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

/* header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(246, 248, 251, 0.84);
  border-bottom: 1px solid rgba(217, 226, 236, 0.8);
}

/* main */
main {
  padding: 2rem 0 4rem;
}

/* hero grid */
.hero-shell {
  display: grid;
  gap: 1.25rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
  align-items: stretch;
}

/* panels */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
}

/* sections */
section {
  padding-top: 1.35rem;
}

/* footer */
footer {
  padding: 1rem 0 3rem;
  color: var(--muted);
  font-size: 0.96rem;
}

/* media queries */
@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .panel {
    padding: 1.15rem;
  }
}