/* Palette-aware defaults (overridden by theme color palette CSS) */
    :root {
      --ph-subnav-bg: #fff;
      --ph-subnav-link: #4a4f71;
      --ph-subnav-link-hover: #5f61ff;
      --ph-subnav-border: rgba(255, 255, 255, 0.15);
      --ph-footer-bg-start: #274aab;
      --ph-footer-bg-end: #06265b;
      --ph-navbar-bg: #2e4272;
      --ph-navbar-text: #ffffff;
      --ph-navbar-text-hover: rgba(255, 255, 255, 0.85);
      --ph-btn-primary-bg: #274aab;
      --ph-btn-primary-hover: #1e3a8a;
      --ph-btn-primary-rgb: 39, 74, 171;
      --ph-header-bg-start: #274aab;
      --ph-header-bg-end: #06265b;
      --ph-hero-title-color: #274aab;
      --ph-hero-subtitle-color: #4a4f71;
      --ph-accent-color: #4d6fd8;
      --ph-accent-light: rgba(39, 74, 171, 0.12);

      /* Content palette defaults (colors 3, 4, 5) */
      --ph-content-accent: #3b82f6;
      --ph-content-accent-rgb: 59, 130, 246;
      --ph-content-light-bg: #eff6ff;
      --ph-content-dark-bg: #0f172a;
    }

    .journal-subnav {
      border-top: none;
      border-bottom: 1px solid rgba(0,0,0,0.08);
      background-color: var(--ph-subnav-bg);
      padding: 0.32rem 0;
      position: sticky;
      top: var(--wws-header-h, 0px);
      z-index: 900;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }

    /* ── Theme headers (tri/one/two): sticky below Bootstrap navbar ── */
    #theme-header .header-wrap,
    #theme-header .site-header,
    #theme-header .navbar-shell {
      position: sticky;
      top: var(--wws-header-h, 60px);
      z-index: 900;
    }
    /* ── Theme footer: ensure full-width styling ── */
    .footer[data-footer-root],
    footer#siteFooter {
      width: 100%;
    }

    .journal-subnav-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.75rem;
    }

    .journal-subnav-title img {
      height: 46px !important;
      width: auto;
    }

    .journal-subnav-links {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 0;
    }

    .journal-subnav-item {
      list-style: none;
      position: relative;
    }

    .journal-subnav-link {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      padding: 0.15rem 0;
      font-size: 0.875rem;
      color: var(--ph-subnav-link);
      font-weight: 600;
      text-decoration: none;
      white-space: nowrap;
      border-bottom: 2px solid transparent;
      transition: color 0.2s ease, border-color 0.2s ease;
    }

    .journal-subnav-link:hover {
      color: var(--ph-subnav-link-hover);
      border-color: color-mix(in srgb, var(--ph-subnav-link-hover) 35%, transparent);
    }

    .journal-subnav-item.dropdown > .journal-subnav-link {
      position: relative;
      padding-right: 1.5rem;
    }

    .journal-subnav-item.dropdown > .journal-subnav-link::after {
      content: '';
      position: absolute;
      right: 0.15rem;
      top: 50%;
      width: 0.45rem;
      height: 0.45rem;
      border-right: 2px solid currentColor;
      border-bottom: 2px solid currentColor;
      transform: translateY(-60%) rotate(45deg);
      transition: transform 0.2s ease;
    }

    .journal-subnav-item.dropdown.show > .journal-subnav-link::after {
      transform: translateY(-40%) rotate(225deg);
    }

    .journal-subnav-item .dropdown-menu {
      min-width: 220px;
    }

    .journal-subnav-dropdown-sublist {
      padding-left: 1.1rem;
      margin-bottom: 0.25rem;
    }

    .journal-subnav-dropdown-sublist .dropdown-item {
      padding-left: 0;
    }

    /* Footer palette support */
    [data-footer-root] {
      background: linear-gradient(135deg, var(--ph-footer-bg-start) 0%, var(--ph-footer-bg-end) 100%) !important;
    }

    /* Toggle button for mobile */
    .journal-subnav-toggle {
      display: none;
      background: transparent;
      border: none;
      padding: 0.4rem 0.5rem;
      margin-right: 0.5rem;
      font-size: 1.15rem;
      color: var(--ph-subnav-link);
      cursor: pointer;
      transition: color 0.2s ease;
      line-height: 1;
      align-self: center;
    }

    .journal-subnav-toggle:hover {
      color: var(--ph-subnav-link-hover);
    }

    .journal-subnav-toggle i {
      display: block;
      line-height: 1;
    }

    .journal-subnav-title {
      display: flex;
      align-items: center;
    }

    @media (max-width: 991px) {
      .journal-subnav-inner {
        flex-wrap: nowrap;
        align-items: center;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
      }

      .journal-subnav-toggle {
        display: flex;
        align-items: center;
        order: 1;
      }

      .journal-subnav-title {
        order: 2;
        flex-grow: 1;
        margin-top: 0;
        margin-bottom: 0;
      }

      .journal-subnav-links {
        width: 100%;
        flex-direction: column;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.3s ease, opacity 0.3s ease;
        order: 3;
      }

      .journal-subnav-links.show {
        max-height: 1000px;
        opacity: 1;
        margin-top: 1rem;
      }

      .journal-subnav-link {
        width: 100%;
        justify-content: space-between;
        padding: 0.75rem 0;
      }

      .journal-subnav-item .dropdown-menu {
        width: 100%;
        position: static !important;
        transform: none !important;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        margin-top: 0.5rem;
        background: transparent;
      }

      .journal-subnav-item .dropdown-menu .dropdown-item {
        color: var(--ph-subnav-link);
      }

      .journal-subnav-item .dropdown-menu .dropdown-item:hover {
        color: var(--ph-subnav-link-hover);
        background: rgba(255, 255, 255, 0.1);
      }
    }

    /* --- Mobile nav refinements (max 767px) --- */
    @media (max-width: 767.98px) {
      .journal-subnav-inner {
        padding-top: 0.375rem;
        padding-bottom: 0.375rem;
        gap: 0.5rem;
      }

      .journal-subnav-title img {
        height: 36px !important;
      }

      /* Navbar: reduce padding */
      nav.layout-navbar .navbar.landing-navbar {
        padding-block: 0.5rem;
      }

      /* App brand text: smaller */
      nav.layout-navbar .navbar.landing-navbar .app-brand-text {
        font-size: 0.9375rem;
      }

      /* Navbar brand: reduce spacing */
      .navbar-brand.app-brand {
        margin-right: 0.5rem !important;
      }
    }

    /* --- Small mobile (max 480px) --- */
    @media (max-width: 480px) {
      .journal-subnav-title img {
        height: 30px !important;
      }

      nav.layout-navbar .navbar.landing-navbar .app-brand-text {
        font-size: 0.8125rem;
      }
    }