.toolbar-container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem; 
    padding-left: 1rem;
    padding-right: 1rem; 
    align-items: center; 

    /* remove two below lines for test.html */
    display: flex;
    justify-content: space-between; 
}

.toolbar-buttons {
    display: grid;
    grid-auto-flow: column;      /* add new items as new columns */
    grid-auto-columns: var(--x); /* each column is x wide       */
    grid-template-rows: var(--x) var(--x); /* two rows of height x */
    width: max-content;          /* grid grows horizontally only */
    gap: 0.5rem; 
}
.toolbar-button {
    background-color: #f7fafc;
    border: 1px solid #e2e8f0;
    color: #2d3748;
    transition: background-color 0.2s, box-shadow 0.2s;
}
.toolbar-button:hover {
    background-color: #dce6ef;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.toolbar-button:disabled {
    opacity: 0.5;
    cursor: arrow;
}
.toolbar-button svg:not(.chevron-down) {
    min-width: 1.25em;
    min-height: 1.25em;
}

.toolbar-button.large {
    grid-column: span 2;
    grid-row: span 2;
    width: 84px;
}


@media (min-width: 640px) {
  .toolbar-container {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .toolbar-container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .toolbar-container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .toolbar-container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .toolbar-container {
    max-width: 1536px;
  }
}