/**
 * SiteMoni Shared Header Styles
 * Include this in all pages for consistent header styling
 */

/* Placeholder dimensions to prevent layout shift */
#theme-toggle-placeholder { width: 36px; height: 36px; }
#language-selector-placeholder { min-width: 85px; height: 36px; }

/* Navigation */
nav {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 1000 !important;
  background: var(--nav-bg) !important;
  backdrop-filter: blur(20px) !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 0.75rem 2rem !important;
}

.nav-container {
  max-width: 1200px !important;
  margin: 0 auto !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}

.logo {
  font-size: 1.5rem !important;
  font-weight: 800 !important;
  color: var(--text) !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
  text-decoration: none !important;
}

.logo:hover {
  text-decoration: none !important;
}

.logo img {
  height: 32px !important;
  width: 32px !important;
}

.logo-content {
  display: flex !important;
  flex-direction: column !important;
  line-height: 1.2 !important;
}

.logo-text {
  font-size: 1.4rem !important;
  font-weight: 700 !important;
  color: var(--text) !important;
}

.logo-slogan {
  display: none !important; /* Hidden for now */
  font-size: 0.7rem !important;
  color: var(--primary) !important;
  font-style: italic !important;
  margin-top: -2px !important;
}

/* Nav Links */
.nav-links {
  display: flex !important;
  align-items: center !important;
  gap: 1.5rem !important;
}

.nav-links a:not(.btn) {
  color: var(--text-muted) !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  position: relative !important;
  transition: color 0.2s !important;
  text-decoration: none !important;
  white-space: nowrap !important;
}

.nav-links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:not(.btn):hover {
  color: var(--text);
  text-decoration: none;
}

.nav-links a:not(.btn):hover::after {
  width: 100%;
}

/* Buttons */
.nav-links .btn {
  padding: 0.5rem 1rem !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  transition: all 0.2s !important;
  cursor: pointer !important;
  border: none !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  white-space: nowrap !important;
  box-shadow: none !important;
}

.nav-links .btn-primary {
  background: var(--primary) !important;
  color: white !important;
  border: none !important;
}

.nav-links .btn-primary:hover {
  background: var(--primary-hover) !important;
  text-decoration: none !important;
  transform: none !important;
  box-shadow: none !important;
}

.nav-links .btn-outline {
  background: transparent !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}

.nav-links .btn-outline:hover {
  background: var(--bg-card) !important;
  text-decoration: none !important;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--text);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

/* Language Selector */
.language-selector {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-toggle:hover {
  border-color: var(--primary);
  color: var(--text);
}

.lang-toggle .lang-code {
  font-weight: 600;
  font-size: 0.85rem;
}

.lang-toggle .arrow {
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}

.language-selector.open .lang-toggle .arrow {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: 100;
  max-height: 300px;
  overflow-y: auto;
}

.language-selector.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s ease;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.lang-option:hover {
  background: rgba(77, 147, 247, 0.1);
  color: var(--text);
}

.lang-option.active {
  background: rgba(77, 147, 247, 0.15);
  color: var(--primary);
}

.lang-option .lang-code {
  font-weight: 600;
  font-size: 0.8rem;
  min-width: 24px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1002;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.mobile-menu-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu (created by i18n.js) */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  z-index: 1000;
  padding: 5rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: all 0.3s ease;
  overflow-y: auto;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu a:not(.btn) {
  display: block;
  padding: 1rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}

.mobile-menu a:not(.btn):hover {
  color: var(--primary);
}

.mobile-menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.mobile-menu-buttons .btn {
  width: 100%;
  justify-content: center;
  padding: 1rem;
}

.mobile-menu-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  nav {
    padding: 0.75rem 1rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  nav.menu-open {
    background: var(--bg-dark);
  }
}