/* Shared primary navigation. Injected by the Worker (src/site-nav.js) into every
   page with the standard topbar. Selectors are scoped to header.topbar so they
   win over each page's inline nav styles. */

header.topbar .fx-burger { display: none; }
header.topbar .nav-hamburger { display: none !important; } /* legacy per-page button, replaced by .fx-burger */

header.topbar .nav,
header.topbar .nav a,
header.topbar .nav-toggle {
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  text-transform: none;
}

header.topbar .nav-pages a,
header.topbar .nav-toggle {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

header.topbar .nav-pages a.active,
header.topbar .nav-toggle.active { color: var(--accent, #61ffd7); }

/* Desktop: one row, brand left, menu and button right. */
@media (min-width: 1181px) {
  header.topbar:has(> nav.nav) { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: nowrap; }
  header.topbar > nav.nav { display: flex; align-items: center; gap: 12px; flex-wrap: nowrap; margin-left: auto; }
  header.topbar .nav-pages { flex-wrap: nowrap; gap: 2px; }
  header.topbar .nav-pages > a { padding: 9px 12px; }
  header.topbar .nav-toggle { padding: 9px 12px; margin: 0; }
  header.topbar .nav-cta { min-width: 0; white-space: nowrap; padding: 11px 18px; }
}

/* Tablet and phone: brand plus a menu button; the menu opens as a panel. */
@media (max-width: 1180px) {
  header.topbar:has(> nav.nav) {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 0 !important;
  }

  header.topbar:has(> nav.nav) > .brand { flex: 0 1 auto; width: auto; max-width: calc(100% - 60px); margin: 0; text-align: left; align-items: flex-start; }
  header.topbar:has(> nav.nav) > .brand .brand-mark { font-size: clamp(1.3rem, 6.5vw, 2rem); }

  header.topbar .fx-burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 46px;
    height: 46px;
    padding: 0 12px;
    border-radius: 12px;
    border: 1px solid rgba(97, 255, 215, 0.3);
    background: rgba(97, 255, 215, 0.06);
    cursor: pointer;
  }

  header.topbar .fx-burger span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--text, #eefcff);
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  header.topbar.fx-open .fx-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  header.topbar.fx-open .fx-burger span:nth-child(2) { opacity: 0; }
  header.topbar.fx-open .fx-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  header.topbar > nav.nav { display: none !important; }

  header.topbar.fx-open > nav.nav {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
    flex-basis: 100%;
    width: 100%;
    gap: 10px;
    margin-top: 14px;
  }

  header.topbar.fx-open .nav-pages {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 2px;
    padding: 8px;
    border-radius: 16px;
  }

  header.topbar.fx-open .nav-pages > a,
  header.topbar.fx-open .nav-toggle {
    display: flex;
    width: 100%;
    min-height: 46px;
    align-items: center;
    justify-content: space-between;
    margin: 0;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 1rem;
  }

  header.topbar.fx-open .nav-item { width: 100%; }

  header.topbar.fx-open .nav-dropdown {
    position: static !important;
    display: none;
    min-width: 0 !important;
    width: auto !important;
    margin: 0 0 6px 14px;
    padding: 4px 0 4px 10px !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    box-shadow: none !important;
    background: transparent !important;
    border: 0 !important;
    border-left: 1px solid rgba(97, 255, 215, 0.2) !important;
    border-radius: 0 !important;
  }

  header.topbar.fx-open .nav-item.fx-expanded .nav-dropdown { display: block; }
  header.topbar.fx-open .nav-item.fx-expanded .nav-caret { transform: rotate(180deg); }

  header.topbar.fx-open .nav-dropdown a {
    display: flex;
    min-height: 42px;
    align-items: center;
    padding: 10px 12px;
  }

  header.topbar.fx-open .nav-actions { width: 100%; }
  header.topbar.fx-open .nav-cta { width: 100%; min-height: 48px; }
}

/* Server-rendered archive on /blog/ (src/blog-archive.js). */
.fx-archive { margin: 40px 0 0; padding: 18px 20px; border-radius: 16px; border: 1px solid rgba(97, 255, 215, 0.16); background: rgba(7, 15, 23, 0.56); }
.fx-archive summary { cursor: pointer; font-weight: 700; color: var(--accent, #61ffd7); min-height: 44px; display: flex; align-items: center; }
.fx-archive ul { margin: 12px 0 0; padding-left: 18px; columns: 2 320px; column-gap: 32px; }
.fx-archive li { margin: 0 0 8px; break-inside: avoid; line-height: 1.4; }
.fx-archive a { color: var(--text, #eefcff); text-decoration: underline; text-decoration-color: rgba(97, 255, 215, 0.35); }
.fx-archive time { display: block; font-size: 0.8rem; color: var(--muted, #b7d4d9); }