/* === Responsive === */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
  }

  header.shrink {
    padding: 0;
  }

  .burger {
    display: block;
  }

  nav {
    display: none;
    flex-direction: column;
    background: var(--color-card-bg);
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 20px;
    z-index: 999;
  }

  nav.show {
    display: flex;
  }

  nav a {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
  }

  .hero-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .hero-intro {
    display: none;
  }

  .hero-content h1 {
    font-size: calc(var(--index)*2.2);
  }

  .hero-content .subtitle {
    font-size: calc(var(--index)*1.2);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .card {
    width: 100%;
    max-width: 320px;
  }

  #signup form {
    max-width: 100%;
  }

  .schedule-table-by-location {
    flex-direction: column;
    align-items: stretch;
  }

  .location-block {
    max-width: 100%;
  }
}