:root {
  --nav-h: 72px;
  --subsite-toolbar-h: 44px;
  --header-offset: var(--nav-h);
  --nav-surface: var(--surface, var(--card, #ffffff));
  --nav-border: var(--border, var(--card-border, #dbe4ee));
  --nav-border-light: var(--border-light, #c5d3e0);
  --nav-text: var(--text, #152535);
  --nav-text-muted: var(--text-muted, var(--muted, #5a6b7d));
  --nav-accent: var(--accent, #0d9488);
  --nav-accent-soft: var(--accent-soft, var(--accent-glow, rgba(13, 148, 136, 0.14)));
  --nav-on-accent: var(--on-accent, #ffffff);
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  overflow: visible;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

.nav .nav-inner {
  overflow: visible;
}

.nav.scrolled,
.nav--subpage {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 4px 24px rgba(21, 37, 53, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

/* Win over subsite .container rules (e.g. DMARC checker vertical padding) */
.nav .nav-inner.container {
  width: 100%;
  max-width: var(--nav-max, 1140px);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
}

.nav .logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--nav-text);
  font-weight: 700;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--nav-accent);
  color: var(--nav-on-accent);
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  justify-content: flex-end;
  min-width: 0;
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-left: 0.35rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--nav-border-light);
  flex-shrink: 0;
}

.nav-links a {
  color: var(--nav-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--nav-text); }

.nav-dashboard {
  border: 1px solid var(--nav-border-light) !important;
  color: var(--nav-text) !important;
  padding: 0.45rem 0.85rem !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  background: transparent !important;
  white-space: nowrap;
  font-size: 0.85rem !important;
}

.nav-dashboard:hover {
  border-color: var(--nav-accent) !important;
  color: var(--nav-accent) !important;
  background: var(--nav-accent-soft) !important;
}

.nav-cta {
  background: var(--nav-accent) !important;
  color: var(--nav-on-accent) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
}

.nav-cta:hover { opacity: 0.9; }

.nav-dropdown {
  position: relative;
}

.nav .nav-dropdown-toggle,
.nav .nav-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: none;
  border: none;
  color: var(--nav-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  padding: 0.35rem 0;
  transition: color 0.2s;
  box-shadow: none;
  border-radius: 0;
  transform: none;
  line-height: normal;
  letter-spacing: normal;
  min-height: 0;
  min-width: 0;
}

.nav .nav-toggle {
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav .nav-dropdown-toggle {
  width: auto;
}

.nav .nav-dropdown-toggle:hover,
.nav .nav-dropdown-toggle:active,
.nav-dropdown.open .nav-dropdown-toggle {
  color: var(--nav-text);
  background: none;
  opacity: 1;
  transform: none;
  box-shadow: none;
}

.nav-dropdown-chevron {
  flex-shrink: 0;
  transition: transform 0.2s;
}

.nav-dropdown.open .nav-dropdown-chevron {
  transform: rotate(180deg);
}

.nav-dropdown-flyout {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 280px;
  padding: 0.65rem 0 0.85rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s, visibility 0.15s;
  z-index: 110;
}

.nav-dropdown.open .nav-dropdown-flyout {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown-menu {
  background: var(--nav-surface);
  border: 1px solid var(--nav-border);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(21, 37, 53, 0.12);
  padding: 0.5rem;
}

.nav .nav-dropdown-menu a,
.nav .nav-dropdown-item {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  color: var(--nav-text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  background: transparent;
  border: none;
  box-shadow: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-item:hover {
  background: var(--bg-alt, #eef3f8);
  color: var(--nav-text);
}

.nav-dropdown-item--active {
  background: var(--nav-accent-soft);
}

.nav-dropdown-item--active .nav-dropdown-item-title {
  color: var(--nav-accent);
}

.nav-dropdown-item-title {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--nav-text);
  line-height: 1.35;
}

.nav-dropdown-item-desc {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--nav-text-muted);
  margin-top: 0.12rem;
  line-height: 1.4;
}

.nav-dropdown-item--simple .nav-dropdown-item-title {
  font-weight: 500;
  color: var(--nav-text-muted);
}

.nav-dropdown-item--simple:hover .nav-dropdown-item-title {
  color: var(--nav-text);
}

.nav .nav-toggle {
  display: none;
  flex-shrink: 0;
}

.nav .nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--nav-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

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

/* Subsite toolbar */
.subsite-toolbar {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  z-index: 99;
  min-height: var(--subsite-toolbar-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
}

.subsite-toolbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
  max-width: var(--nav-max, 1140px);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.subsite-toolbar .subsite-toolbar-inner.container {
  width: 100%;
  max-width: var(--nav-max, 1140px);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
}

.subsite-toolbar-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--nav-text);
  white-space: nowrap;
  flex-shrink: 0;
}

.subsite-toolbar-links {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.subsite-toolbar-links a {
  color: var(--nav-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s;
}

.subsite-toolbar-links a:hover {
  color: var(--nav-accent);
}

body.has-subsite-toolbar {
  --header-offset: calc(var(--nav-h) + var(--subsite-toolbar-h));
}

.nav .lang-switch {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--nav-surface);
  border: 1px solid var(--nav-border);
  border-radius: 8px;
  padding: 2px;
  margin-left: 0.75rem;
  flex-shrink: 0;
}

.nav .lang-switch button {
  border: none;
  background: transparent;
  color: var(--nav-text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: normal;
}

.nav .lang-switch button.active {
  background: var(--nav-accent);
  color: var(--nav-on-accent);
}

.nav .lang-switch button:hover:not(.active) {
  color: var(--nav-text);
}

@media (max-width: 1100px) {
  .nav-primary { gap: 0.65rem; }
  .nav-links a,
  .nav-dropdown-toggle { font-size: 0.85rem; }
  .nav-dashboard { padding: 0.4rem 0.7rem !important; }
  .nav-cta { padding: 0.4rem 0.9rem !important; font-size: 0.85rem !important; }
}

@media (max-width: 768px) {
  .nav .lang-switch { margin-left: 0; }
  .nav--minimal .nav-inner { gap: 0.5rem; }
  .nav--minimal .nav-cta,
  .nav--minimal .nav-dashboard {
    padding: 0.45rem 0.9rem !important;
    font-size: 0.82rem !important;
  }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: var(--header-offset, var(--nav-h));
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem 1.5rem 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--nav-border);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    max-height: calc(100vh - var(--header-offset, var(--nav-h)));
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-primary,
  .nav-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    border: none;
  }

  .nav-actions {
    padding-top: 0.5rem;
    border-top: 1px solid var(--nav-border);
  }

  .nav-actions .nav-cta,
  .nav-actions .nav-dashboard {
    text-align: center;
    width: 100%;
  }

  .nav-dropdown { width: 100%; }

  .nav .nav-dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 0.15rem 0;
  }

  .nav-dropdown-flyout {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0;
    min-width: 0;
    display: none;
  }

  .nav-dropdown.open .nav-dropdown-flyout { display: block; }

  .nav-dropdown-menu {
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0.25rem 0 0.5rem 0.75rem;
  }

  .nav-dropdown-menu a { padding: 0.55rem 0; white-space: normal; }

  .nav .nav-toggle { display: flex; }

  .nav--minimal .nav-links {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    flex-direction: row;
    padding: 0;
    gap: 0.75rem;
    border-bottom: none;
    background: transparent;
    backdrop-filter: none;
    max-height: none;
    overflow: visible;
  }

  .nav--minimal .nav-toggle { display: none !important; }

  .subsite-toolbar-inner {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.2rem;
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
    height: auto;
    min-height: var(--subsite-toolbar-h);
  }

  .subsite-toolbar-links {
    justify-content: flex-start;
    gap: 0.75rem 1rem;
  }

  body.has-subsite-toolbar {
    --subsite-toolbar-h: 68px;
  }
}