/* Shared responsive navigation; desktop retains each page's existing header. */
#siteHeader #menuToggle { display: none; }
#siteHeader :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

#siteHeader #siteNav .nav-contact {
  display: inline-flex; align-items: center; gap: 6px;
  margin: 0; padding: 6px 11px; border: 0; border-radius: 7px;
  background: transparent; color: var(--text-secondary);
  font: 400 15px/1.6 var(--serif); cursor: pointer;
}
#siteHeader #siteNav .nav-contact:hover { color: var(--text-primary); background: var(--surface-2); }
#siteHeader .nav-report-label { display: flex; flex-direction: column; align-items: center; line-height: 1.35; }
#siteHeader .nav-report-note { font-size: .75rem; white-space: nowrap; }

.contact-dialog {
  width: min(440px, calc(100vw - 36px)); max-width: none;
  max-height: calc(100dvh - 36px); margin: auto; padding: 28px;
  overflow-y: auto; border: 1px solid var(--border-strong); border-radius: 14px;
  background: var(--surface-1); color: var(--text-primary);
  font: 1rem/1.6 var(--serif); box-shadow: var(--shadow);
}
.contact-dialog::backdrop { background: rgba(0, 0, 0, .55); backdrop-filter: blur(4px); }
.contact-dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.contact-dialog-header h2 { margin: 0; font-size: 1.75rem; font-weight: 500; }
.contact-dialog-header form { margin: 0; }
.contact-dialog-close {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 8px 12px; border: 1px solid var(--border-strong); border-radius: 7px;
  background: var(--surface-2); color: var(--text-primary); font: inherit; cursor: pointer;
}
.contact-dialog-close:hover { background: var(--surface-3); }
.contact-dialog :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.contact-list { margin: 24px 0 0; }
.contact-list > div { padding: 16px 0; border-top: 1px solid var(--border); }
.contact-list > div:last-child { padding-bottom: 0; }
.contact-list dt { font-size: 1.125rem; font-weight: 600; }
.contact-list dd { margin: 4px 0 0; }
.contact-list a { color: var(--accent); text-underline-offset: 3px; overflow-wrap: anywhere; }
@media (max-width: 480px) { .contact-dialog { padding: 22px; } }

#siteHeader #siteNav .nav-contribute {
  display: inline-flex; flex-direction: column; align-items: center;
  gap: 2px; padding: 4px 9px; white-space: nowrap;
}
#siteHeader .nav-contribute-note {
  padding: 2px 6px; border-radius: 4px;
  font: 600 .75rem/1.25 system-ui, sans-serif;
  color: #9acbff; background: rgba(57, 135, 229, .16);
}
:root[data-theme="light"] #siteHeader .nav-contribute-note {
  color: #205fa8; background: rgba(42, 120, 214, .10);
}

/* Both glyphs live in one svg box, so they cross-fade and rotate through each
   other in place rather than snapping between display: none and block. */
#menuToggle .menu-open-icon,
#menuToggle .menu-close-icon {
  transform-box: fill-box; transform-origin: center;
  transition: opacity .16s ease, transform .22s cubic-bezier(.2, .7, .3, 1);
}
#menuToggle .menu-close-icon { opacity: 0; transform: rotate(-70deg) scale(.7); }
#menuToggle[aria-expanded="true"] .menu-open-icon { opacity: 0; transform: rotate(70deg) scale(.7); }
#menuToggle[aria-expanded="true"] .menu-close-icon { opacity: 1; transform: none; }
#siteHeader #menuToggle[aria-expanded="true"] { color: var(--text-primary); border-color: var(--border-strong); }
#siteHeader .icon-btn { transition: color .15s ease, border-color .15s ease, background-color .15s ease, transform .12s ease; }
#siteHeader .icon-btn:active { transform: scale(.93); }

@media (max-width: 900px), (orientation: portrait) {
  #siteHeader .header-inner {
    height: auto; min-height: 62px; padding-block: 9px;
    flex-wrap: wrap; gap: 12px;
  }
  #siteHeader .brand { margin-right: auto; }
  #siteHeader .header-actions { margin-left: auto; gap: 8px; }
  #siteHeader .icon-btn { width: 44px; height: 44px; }
  #siteHeader #siteNav {
    display: flex; flex-wrap: wrap; order: 3; width: 100%; margin: 0;
    padding: 8px 0; gap: 4px; position: static;
  }
  #siteHeader #siteNav a,
  #siteHeader #siteNav .nav-contact {
    display: inline-flex; align-items: center; gap: 8px;
    margin: 0; padding: 10px 14px; min-height: 44px;
    font-size: 1rem; text-decoration: none;
  }
  #siteHeader #siteNav .nav-contribute { align-items: flex-start; padding: 10px 14px; }
  #siteHeader.navigation-ready .header-inner { height: 62px; flex-wrap: nowrap; padding-block: 0; }
  #siteHeader.navigation-ready #menuToggle { display: grid; }
  #siteHeader.navigation-ready #siteNav {
    display: none; position: absolute; top: 100%; right: 18px; left: auto;
    width: min(300px, calc(100vw - 36px)); padding: 8px;
    max-height: calc(100dvh - 80px); overflow-y: auto;
    background: var(--surface-1); border: 1px solid var(--border-strong);
    border-radius: 10px; box-shadow: var(--shadow); z-index: 70;
    /* allow-discrete keeps the panel painted through the closing fade; browsers
       without it simply snap, which is the pre-animation behaviour. */
    opacity: 0; transform: translateY(-6px) scale(.985); transform-origin: top right;
    transition: opacity .16s ease, transform .2s cubic-bezier(.2, .7, .3, 1), display .2s allow-discrete;
  }
  #siteHeader.navigation-ready #siteNav.is-open {
    display: flex; flex-direction: column; align-items: stretch;
    opacity: 1; transform: none;
  }
  @starting-style {
    #siteHeader.navigation-ready #siteNav.is-open { opacity: 0; transform: translateY(-6px) scale(.985); }
  }
  #siteHeader .nav-report-label { align-items: flex-start; }
  #siteHeader #siteNav a,
  #siteHeader #siteNav .nav-contact { transition: background-color .15s ease, color .15s ease; }
  #siteHeader #siteNav a:hover,
  #siteHeader #siteNav a[aria-current="page"] { background: var(--surface-2); color: var(--text-primary); }
  #siteHeader #siteNav a[aria-disabled="true"] { color: var(--text-muted); background: transparent; }
}
@media (prefers-reduced-motion: reduce) {
  #siteHeader.navigation-ready #siteNav,
  #siteHeader .icon-btn,
  #menuToggle .menu-open-icon,
  #menuToggle .menu-close-icon { transition: none; }
  #siteHeader.navigation-ready #siteNav { transform: none; }
}
@media print { #siteHeader, .contact-dialog { display: none; } }