/**
 * Theme extended CSS — extracted from Header.php inline <style> block.
 * Contains header component styles, dropdown menus, mobile nav, animations,
 * card effects, skeleton loaders, scrollbar, and other non-critical styles.
 * Loaded as an external stylesheet to reduce HTML payload and improve
 * Lighthouse performance (FCP/LCP).
 */

/* Enhanced: Header state when scrolled */
.app-header--scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(var(--card-bg-rgb, 255, 255, 255), 0.95);
}
body.theme-dark .app-header--scrolled {
  background: rgba(var(--card-bg-rgb, 39, 39, 42), 0.95);
}

.app-header__container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}
@media (min-width: 768px) {
  .app-header__container { padding: 0 var(--space-6); }
}

.app-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: var(--space-4);
}

/* Brand styling */
.app-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  font-size: 1.125rem;
  transition: color var(--transition-fast);
}
.app-header__brand:hover { color: var(--color-primary); }

.app-header__logo {
  font-size: 1.5rem;
  animation: subtle-float 3s ease-in-out infinite;
}
@keyframes subtle-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

/* Dropdown with glass morphism */
.app-header__dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-2);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 240px;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(10px);
}
.app-header__dropdown:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
}

/* User menu trigger */
.app-header__user-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.app-header__user-trigger:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-light);
}

/* Avatar styling */
.app-header__user-avatar {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.app-header__user-avatar--large {
  width: 48px;
  height: 48px;
  font-size: 1.125rem;
}

/* Navigation links */
.app-header__link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}
.app-header__link::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--space-4);
  right: var(--space-4);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}
.app-header__link:hover { color: var(--color-primary); }
.app-header__link:hover::after { transform: scaleX(1); }

/* Mobile menu */
.app-header__mobile-nav {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  transform: translateX(-100%);
  transition: transform var(--transition-medium);
  overflow-y: auto;
  z-index: 999;
}
.app-header__mobile-nav:not([hidden]) { transform: translateX(0); }

/* Hamburger animation */
.app-header__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-color);
  margin: 5px 0;
  transition: all var(--transition-fast);
}
.app-header__mobile-toggle--active .app-header__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.app-header__mobile-toggle--active .app-header__hamburger-line:nth-child(2) { opacity: 0; }
.app-header__mobile-toggle--active .app-header__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Gradient text effect */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* Button ripple effect */
.btn { position: relative; overflow: hidden; }
.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: scale(0);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}
@keyframes ripple { to { transform: scale(4); opacity: 0; } }

/* Interactive card effects */
.card--interactive {
  position: relative;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}
.card--interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.card--interactive::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card-hover);
  opacity: 0;
  transition: opacity var(--transition-medium);
  pointer-events: none;
  border-radius: inherit;
}
.card--interactive:hover::before { opacity: 1; }

/* Reveal animations */
[data-animate] { opacity: 0; }
.animate-in { animation-duration: 0.6s; animation-fill-mode: both; }
.animate-fadeInUp { animation-name: fadeInUp; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Focus enhancement for forms */
.form-control:focus,
.form-select:focus {
  border-color: var(--focus-ring-color);
  box-shadow: 0 0 0 var(--focus-ring-width) rgba(13, 110, 253, 0.25);
}
.has-focus .form-label {
  color: var(--color-primary);
  transform: translateY(-1.5rem) scale(0.85);
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, rgba(0,0,0,0.1) 25%, rgba(0,0,0,0.05) 50%, rgba(0,0,0,0.1) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-color); border-radius: var(--radius-md); }
::-webkit-scrollbar-thumb {
  background: var(--muted-text);
  border-radius: var(--radius-md);
  border: 2px solid var(--bg-color);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-color); }