/*
  Cor product family — uniform management console menubar (header right cluster).
  Canonical: C:\ITStaff\_Projects\_branding\ca-menubar.css

  **Reference implementation: CorPBX**
    MainLayout.razor + app.css (.header-icon-btn, .help-btn) + theme-toggle.css

  Order (left → right):
    [ Settings gear ]  [ Theme sun/moon ]  [ Sign out door ]  [ Help ? pill ]

  All four controls use fully rounded circles (border-radius: 999px).
  Help uses the CorLicense-style pill: blue circle "?" + "Help" label.

  Pair with:
    - theme-toggle.css / theme-toggle.js  (sun/moon)
    - help-btn.css                        (Help pill; also included below for convenience)

  Markup (Blazor / static):

  <div class="ca-header-right">
    <a class="header-icon-btn settings-gear" href="/settings" title="Settings" aria-label="Settings">…gear svg…</a>
    <button type="button" class="header-icon-btn theme-toggle" id="themeToggle" title="Toggle color theme"></button>
    <form method="post" action="/account/logout" class="m-0 header-logout-form">
      <button type="submit" class="header-icon-btn signout-btn" title="Sign out" aria-label="Sign out">…door svg…</button>
    </form>
    <a class="help-btn" href="/help" title="Help &amp; guides" aria-label="Help">
      <span class="help-btn-icon" aria-hidden="true">?</span>
      <span class="help-btn-label">Help</span>
    </a>
  </div>
*/

.ca-header-right,
.ca-menubar-actions {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.45rem;
  flex: 0 0 auto;
}

/* Flat circular icon buttons: settings gear, theme, sign-out door */
.header-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;   /* 36px */
  height: 2.25rem;
  padding: 0;
  margin: 0;
  border-radius: 999px;
  border: 1px solid var(--ca-border, #d0d7e2);
  background: var(--ca-panel, #ffffff);
  color: var(--ca-muted, #64748b);
  text-decoration: none;
  flex-shrink: 0;
  cursor: pointer;
  line-height: 0;
  font: inherit;
  appearance: none;
  -webkit-appearance: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.header-icon-btn:hover,
.header-icon-btn.active {
  color: var(--ca-brand, var(--ca-header, #0284c7));
  background: var(--ca-hover, #f1f5f9);
  border-color: color-mix(in srgb, var(--ca-brand, #0284c7) 35%, var(--ca-border, #d0d7e2));
  text-decoration: none;
}

.header-icon-btn:focus-visible {
  outline: 2px solid var(--ca-ring, rgba(14, 165, 233, 0.35));
  outline-offset: 2px;
}

.header-icon-svg {
  width: 1.125rem; /* 18px */
  height: 1.125rem;
  display: block;
  pointer-events: none;
}

.settings-gear.active {
  color: var(--ca-brand, var(--ca-header, #0284c7));
  background: var(--ca-accent-soft, rgba(14, 165, 233, 0.12));
  border-color: color-mix(in srgb, var(--ca-brand, #0284c7) 35%, var(--ca-border, #d0d7e2));
}

.header-logout-form {
  display: inline-flex;
  margin: 0;
  padding: 0;
  line-height: 0;
}

.signout-btn {
  color: var(--ca-muted, #64748b);
}
.signout-btn:hover {
  color: var(--ca-brand, var(--ca-header, #0284c7));
}

/* theme-toggle: same flat circle as gear / sign-out */
.ca-header-right .theme-toggle,
.ca-header-right .header-icon-btn.theme-toggle,
.ca-menubar-actions .theme-toggle {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  color: var(--ca-muted, #64748b);
  background: var(--ca-panel, #ffffff);
  border: 1px solid var(--ca-border, #d0d7e2);
}
.ca-header-right .theme-toggle:hover,
.ca-menubar-actions .theme-toggle:hover {
  color: var(--ca-brand, var(--ca-header, #0284c7));
  background: var(--ca-hover, #f1f5f9);
  border-color: color-mix(in srgb, var(--ca-brand, #0284c7) 35%, var(--ca-border, #d0d7e2));
}

html.dark .header-icon-btn {
  background: var(--ca-panel, #111827);
  border-color: var(--ca-border, #1e293b);
  color: var(--ca-muted, #94a3b8);
}
html.dark .header-icon-btn:hover,
html.dark .header-icon-btn.active {
  color: var(--ca-brand, #0284c7);
  background: var(--ca-hover, #1e293b);
}

/* ——— Help pill (CorLicense / CorPBX): blue circle ? + label ——— */
.help-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.65rem 0.28rem 0.35rem;
  border-radius: 999px;
  border: 1px solid var(--ca-border, #d0d7e2);
  background: var(--ca-panel-soft, #f8fafc);
  color: var(--ca-brand, var(--ca-header, #0284c7));
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  line-height: 1;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.help-btn:hover {
  background: var(--ca-accent-soft, rgba(14, 165, 233, 0.12));
  color: var(--ca-brand, var(--ca-header, #0284c7));
  border-color: color-mix(in srgb, var(--ca-brand, #0284c7) 35%, var(--ca-border, #d0d7e2));
  text-decoration: none;
}

.help-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--ca-brand, var(--ca-header, #0284c7));
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* Keep ? readable on sky-600 in dark mode */
html.dark .help-btn-icon {
  color: #ffffff;
}

html.dark .help-btn {
  background: var(--ca-panel-soft, #0f172a);
  color: var(--ca-brand, #0284c7);
}

.help-btn-label {
  padding-right: 0.15rem;
}

@media (max-width: 720px) {
  .help-btn-label { display: none; }
  .help-btn { padding: 0.28rem; }
}

/* Legacy aliases (prefer .header-icon-btn) */
.ca-settings-icon {
  composes: /* not supported in plain CSS */ ;
}
a.ca-settings-icon,
button.ca-settings-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid var(--ca-border, #d0d7e2);
  background: var(--ca-panel, #ffffff);
  color: var(--ca-muted, #64748b);
  text-decoration: none;
  flex-shrink: 0;
}