/* ── Travel theme – light mode override ───────────────────── */
  [data-theme="light"],
  :root:not([data-theme="dark"]) {

    /* Warm off-white background instead of pure white */
    --pico-background-color: #fdf8f2;

    /* Warmer body text (slightly brownish instead of blue-grey) */
    --pico-color: #3d3529;
    --pico-muted-color: #7a6f62;
    --pico-muted-border-color: #e8dfd4;

    /* Heading colours – warm cascade */
    --pico-h1-color: #2e2618;
    --pico-h2-color: #3d3529;
    --pico-h3-color: #4e4438;
    --pico-h4-color: #605649;
    --pico-h5-color: #7a6f62;
    --pico-h6-color: #8a7f72;

    /* Primary accent: deep ocean teal */
    --pico-primary:                  #0a7c6e;
    --pico-primary-background:       #0a7c6e;
    --pico-primary-border:           #0a7c6e;
    --pico-primary-underline:        rgba(10, 124, 110, 0.5);
    --pico-primary-hover:            #065e53;
    --pico-primary-hover-background: #086b5e;
    --pico-primary-hover-border:     #086b5e;
    --pico-primary-focus:            rgba(10, 124, 110, 0.4);
    --pico-primary-inverse:          #fff;
    --pico-text-selection-color:     rgba(10, 124, 110, 0.2);

    /* Secondary: warm slate (nav links etc.) */
    --pico-secondary:                  #7a6f62;
    --pico-secondary-background:       #6b6057;
    --pico-secondary-border:           #6b6057;
    --pico-secondary-underline:        rgba(122, 111, 98, 0.5);
    --pico-secondary-hover:            #57504a;
    --pico-secondary-hover-background: #57504a;
    --pico-secondary-focus:            rgba(122, 111, 98, 0.25);
    --pico-secondary-inverse:          #fff;

    /* Cards / code get the warm tint too */
    --pico-card-background-color:           #fdf8f2;
    --pico-card-sectioning-background-color: #f7f0e6;
    --pico-card-border-color:               #e8dfd4;
    --pico-code-background-color:           #f7f0e6;
    --pico-code-color:                      #7a6f62;

    /* Form elements */
    --pico-form-element-background-color:    #fdf8f2;
    --pico-form-element-border-color:        #d4c9bc;
    --pico-form-element-active-background-color: #fff;

    /* Dropdown */
    --pico-dropdown-background-color:       #fdf8f2;
    --pico-dropdown-border-color:           #ede5da;
    --pico-dropdown-hover-background-color: #f2ebe0;

    /* Box shadow with warm tone */
    --pico-box-shadow:
      0.0145rem 0.029rem 0.174rem rgba(120, 90, 60, 0.017),
      0.0335rem 0.067rem 0.402rem rgba(120, 90, 60, 0.024),
      0.0625rem 0.125rem 0.75rem  rgba(120, 90, 60, 0.03),
      0.5rem    1rem    6rem      rgba(120, 90, 60, 0.05),
      0 0 0 0.0625rem              rgba(120, 90, 60, 0.015);
  }
      /* ── End of travel theme customisation – light mode override ───────────────────── */

      nav ul li details.dropdown summary {
            width: fit-content !important;
            display: inline-flex;
            margin-bottom: 0;
        }
      @media (max-width: 768px) {
        nav {
          flex-direction: column;
          align-items: flex-start;
          padding: 1rem 0;
        }
        nav ul {
          flex-direction: column;
          width: 100%;
          padding: 0;
        }
        nav ul:first-of-type {
          margin-bottom: 0.5rem;
        }
        nav ul li {
          width: 100%;
          padding: 0.5rem 0;
        }
        nav ul li details.dropdown {
            display: inline-block;
            width: auto;
        }
      }