/* ============================================================================
   HeaderEmbed — Standalone embeddable header styles.
   Self-contained: does NOT depend on dashboard-shell.css.
   Dark theme by default, light via [data-theme="light"].
   All values in rem (ZERO px).
   ============================================================================ */

/* --- Design Tokens (standalone, mirrors dashboard shell palette) --- */
:root {
  --he-bg: #111827;
  --he-bg-hover: #253350;
  --he-bg-elevated: #1f2a40;
  --he-text-primary: #f1f5f9;
  --he-text-secondary: #94a3b8;
  --he-text-muted: #475569;
  --he-accent: #3b82f6;
  --he-accent-glow: rgba(59, 130, 246, 0.2);
  --he-border: rgba(255, 255, 255, 0.06);
  --he-border-hover: rgba(255, 255, 255, 0.12);
  --he-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.4);
  --he-radius: 0.5rem;
  --he-radius-sm: 0.375rem;
  --he-radius-lg: 0.75rem;
  --he-transition: 0.15s ease;
  --he-transition-smooth: 0.25s ease;
  --he-height: 3.75rem;
  --he-touch-min: 2.75rem;
  --he-icon-amber: #f59e0b;
  --he-icon-rose: #f43f5e;
  --he-icon-blue: #3b82f6;
  --he-icon-green: #22c55e;
  --he-icon-purple: #a855f7;
  --he-icon-teal: #14b8a6;
}

/* --- Light Theme --- */
[data-theme="light"] {
  --he-bg: #ffffff;
  --he-bg-hover: #dbeafe;
  --he-bg-elevated: #e2e8f0;
  --he-text-primary: #0f172a;
  --he-text-secondary: #475569;
  --he-text-muted: #cbd5e1;
  --he-border: rgba(0, 0, 0, 0.08);
  --he-border-hover: rgba(0, 0, 0, 0.15);
  --he-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
}

/* ============================================================================
   HEADER BAR
   ============================================================================ */
.he-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  height: var(--he-height);
  background: var(--he-bg);
  border-bottom: 0.0625rem solid var(--he-border);
  padding: 0 1rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  box-sizing: border-box;
}

/* ============================================================================
   BRAND
   ============================================================================ */
.he-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-right: 1rem;
  flex-shrink: 0;
}

.he-brand-icon {
  width: 2rem;
  height: 2rem;
  border-radius: var(--he-radius);
  background: linear-gradient(135deg, var(--he-accent), var(--he-icon-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.he-brand-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--he-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

/* ============================================================================
   NAVIGATION MENUS (center)
   ============================================================================ */
.he-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  padding: 0 1.5rem;
}

.he-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  min-height: var(--he-touch-min);
  border-radius: var(--he-radius);
  background: transparent;
  border: none;
  color: var(--he-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--he-transition);
  font-family: inherit;
  white-space: nowrap;
}

.he-menu-item:hover {
  background: var(--he-bg-hover);
  color: var(--he-text-primary);
}

.he-menu-item i {
  font-size: 0.875rem;
}

.he-chevron {
  font-size: 0.5625rem;
  margin-left: 0.25rem;
}

.he-menu-dropdown-wrap {
  position: relative;
}

/* ============================================================================
   DROPDOWNS (menus + user)
   ============================================================================ */
.he-dropdown,
.he-user-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 12rem;
  background: var(--he-bg-elevated);
  border: 0.0625rem solid var(--he-border);
  border-radius: var(--he-radius-lg);
  box-shadow: var(--he-shadow);
  padding: 0.375rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: all var(--he-transition-smooth);
  z-index: 1100;
}

.he-dropdown.open,
.he-user-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.he-user-dropdown {
  left: auto;
  right: 0;
  min-width: 14rem;
}

.he-dd-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  min-height: var(--he-touch-min);
  border-radius: var(--he-radius-sm);
  color: var(--he-text-secondary);
  font-size: 0.8125rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--he-transition);
  border: none;
  background: none;
  width: 100%;
  font-family: inherit;
}

.he-dd-item:hover {
  background: var(--he-bg-hover);
  color: var(--he-text-primary);
}

.he-dd-item i {
  width: 1.125rem;
  text-align: center;
  font-size: 0.8125rem;
}

.he-dd-danger {
  color: var(--he-icon-rose);
}

.he-dd-danger:hover {
  color: var(--he-icon-rose);
}

/* User dropdown header */
.he-dd-header {
  padding: 0.75rem;
  border-bottom: 0.0625rem solid var(--he-border);
  margin-bottom: 0.25rem;
}

.he-dd-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--he-text-primary);
}

.he-dd-email {
  font-size: 0.75rem;
  color: var(--he-text-secondary);
  margin-top: 0.125rem;
}

.he-dd-role {
  display: inline-block;
  margin-top: 0.375rem;
  padding: 0.125rem 0.5rem;
  border-radius: 999rem;
  background: var(--he-accent-glow);
  color: var(--he-accent);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ============================================================================
   HEADER ACTIONS (right side)
   ============================================================================ */
.he-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-left: auto;
}

.he-icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--he-touch-min);
  height: var(--he-touch-min);
  border-radius: var(--he-radius);
  background: transparent;
  border: none;
  color: var(--he-text-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--he-transition);
}

.he-icon-btn:hover {
  background: var(--he-bg-hover);
  color: var(--he-text-primary);
}

/* Colored icon variants */
.he-icon-btn[data-color="blue"]   { color: var(--he-icon-blue); }
.he-icon-btn[data-color="green"]  { color: var(--he-icon-green); }
.he-icon-btn[data-color="purple"] { color: var(--he-icon-purple); }
.he-icon-btn[data-color="amber"]  { color: var(--he-icon-amber); }
.he-icon-btn[data-color="rose"]   { color: var(--he-icon-rose); }
.he-icon-btn[data-color="teal"]   { color: var(--he-icon-teal); }

/* Badge */
.he-badge {
  position: absolute;
  top: 0.375rem;
  right: 0.375rem;
  min-width: 1.125rem;
  height: 1.125rem;
  border-radius: 999rem;
  background: var(--he-icon-rose);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.25rem;
  border: 0.125rem solid var(--he-bg);
  line-height: 1;
}

/* Theme toggle */
.he-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--he-touch-min);
  height: var(--he-touch-min);
  border-radius: var(--he-radius);
  background: transparent;
  border: none;
  color: var(--he-icon-amber);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--he-transition);
}

.he-theme-toggle:hover {
  background: var(--he-bg-hover);
}

/* ============================================================================
   USER BUTTON
   ============================================================================ */
.he-user-wrap {
  position: relative;
}

.he-user-btn {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.375rem 0.625rem;
  margin-left: 0.5rem;
  border-radius: var(--he-radius);
  cursor: pointer;
  transition: all var(--he-transition);
  border: none;
  background: none;
  min-height: var(--he-touch-min);
  font-family: inherit;
}

.he-user-btn:hover {
  background: var(--he-bg-hover);
}

.he-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--he-icon-teal), var(--he-icon-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.he-user-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--he-text-primary);
  max-width: 8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.he-user-btn > .he-chevron {
  font-size: 0.625rem;
  color: var(--he-text-muted);
}

/* Login link (unauthenticated state) */
.he-login-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: var(--he-radius);
  background: var(--he-accent);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--he-transition);
}

.he-login-link:hover {
  background: #2563eb;
}

/* ============================================================================
   MOBILE HAMBURGER
   ============================================================================ */
.he-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: var(--he-touch-min);
  height: var(--he-touch-min);
  border-radius: var(--he-radius);
  background: transparent;
  border: none;
  color: var(--he-text-secondary);
  font-size: 1.125rem;
  cursor: pointer;
  transition: all var(--he-transition);
  margin-right: 0.5rem;
}

.he-hamburger:hover {
  background: var(--he-bg-hover);
  color: var(--he-text-primary);
}

/* Mobile nav panel (slides below header) */
.he-mobile-nav {
  display: none;
  position: absolute;
  top: var(--he-height);
  left: 0;
  right: 0;
  background: var(--he-bg);
  border-bottom: 0.0625rem solid var(--he-border);
  box-shadow: var(--he-shadow);
  padding: 0.5rem;
  flex-direction: column;
  z-index: 1050;
}

.he-mobile-nav.open {
  display: flex;
}

.he-mobile-nav .he-menu-item {
  width: 100%;
  justify-content: flex-start;
}

.he-mobile-nav .he-menu-dropdown-wrap {
  width: 100%;
}

.he-mobile-nav .he-dropdown {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  border: none;
  background: transparent;
  padding-left: 1.5rem;
}

.he-mobile-nav .he-dropdown.open {
  display: block;
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

/* Mobile: show hamburger, hide desktop nav + user name */
@media (max-width: 48rem) {
  .he-hamburger {
    display: flex;
  }

  .he-nav {
    display: none;
  }

  .he-brand-name {
    display: none;
  }

  .he-user-name {
    display: none;
  }
}

/* Desktop: hide hamburger, ensure nav visible */
@media (min-width: 48.0625rem) {
  .he-hamburger {
    display: none;
  }

  .he-mobile-nav {
    display: none !important;
  }
}