/* Nursery masthead: centred wordmark above a field-guide ribbon. */
.field-mobile-nav { display: none; }

@media (min-width: 901px) {
  .field-nav {
    position: relative;
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "nav";
    justify-items: center;
    gap: 12px;
    min-height: 148px;
    padding: 14px 4vw 0;
  }

  .field-nav .wordmark {
    grid-area: brand;
    justify-self: center;
  }

  .field-nav > nav {
    grid-area: nav;
    justify-content: center;
    width: calc(100% + 8vw);
    margin-inline: -4vw;
    min-height: 54px;
    color: var(--cream);
    background: var(--forest);
  }

  .field-nav > nav a {
    display: flex;
    align-items: center;
    min-height: 54px;
    padding: 10px 28px;
    border-inline: 1px solid rgba(251, 248, 239, 0.16);
    text-decoration: none;
  }

  .field-nav > nav a:hover { color: var(--forest); background: var(--paper); }

  .field-nav .stock-link {
    position: absolute;
    top: 23px;
    right: 4vw;
    min-height: 44px;
  }
}

@media (max-width: 900px) {
  .field-nav {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand menu"
      "stock stock";
    gap: 10px;
    padding: 12px;
  }

  .field-nav .wordmark { grid-area: brand; }

  .field-nav .stock-link {
    grid-area: stock;
    display: flex;
    align-items: center;
    justify-content: center;
    justify-self: stretch;
    min-height: 44px;
  }

  .field-mobile-nav {
    position: relative;
    grid-area: menu;
    display: block;
  }

  .field-mobile-nav summary {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--forest);
    border: 1px solid var(--forest);
    font: 800 0.68rem ui-monospace, monospace;
    list-style: none;
    text-transform: uppercase;
    cursor: pointer;
  }

  .field-mobile-nav summary::-webkit-details-marker { display: none; }

  .field-mobile-nav > div {
    position: absolute;
    z-index: 30;
    top: calc(100% + 8px);
    right: 0;
    display: grid;
    min-width: 220px;
    padding: 8px;
    color: var(--cream);
    background: var(--forest);
    border: 1px solid var(--forest);
    box-shadow: 9px 10px 0 var(--clay);
  }

  .field-mobile-nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    border-bottom: 1px solid rgba(251, 248, 239, 0.24);
    text-decoration: none;
  }

  .field-mobile-nav a:last-child { border-bottom: 0; }
}