/* Main Styles */

/* Base Styles */
.body-initialized,
body {
  /* Ensure base background follows current theme variables */
  background: var(--color-background);
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-primary);
  z-index: var(--z-index-fixed);
  transition: width var(--transition-fast);
}

/* Page Loader */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-background);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-container {
  text-align: center;
}

.loader-logo {
  margin-bottom: var(--spacing-6);
}

.logo-text {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.logo-underline {
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  margin: var(--spacing-2) auto;
  border-radius: var(--border-radius-full);
  animation: pulse 2s infinite;
}

.loader-progress {
  width: 200px;
  height: 3px;
  background: var(--color-surface);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin: var(--spacing-4) auto;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  animation: loading 2s ease-in-out infinite;
}

.loader-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-4);
}

@keyframes loading {
  0% { width: 0%; }
  50% { width: 100%; }
  100% { width: 100%; }
}

/* Floating Widgets */
.floating-widgets {
  position: fixed;
  /* 将悬浮组件整体下移，避开横幅区域与导航 */
  top: calc(var(--navbar-height) + var(--spacing-6));
  right: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  z-index: var(--z-index-fixed);
}

.floating-widget {
  position: relative;
  width: 48px;
  height: 48px;
  background: var(--glass-background);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.floating-widget:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl), var(--glow-primary);
}

.floating-widget.active {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.widget-icon {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

.floating-widget:hover .widget-icon,
.floating-widget.active .widget-icon {
  color: var(--color-white);
}

.widget-dropdown {
  position: absolute;
  top: 0;
  right: calc(100% + var(--spacing-3));
  min-width: 160px;
  background: var(--glass-background);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2);
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px) scale(0.9);
  transition: var(--transition-base);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
}

.floating-widget:hover .widget-dropdown,
.floating-widget.active .widget-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
}

.language-option,
.theme-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.language-option:hover,
.theme-option:hover {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
}

.language-option.active,
.theme-option.active {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.language-option .flag {
  font-size: var(--font-size-base);
}

.theme-option i {
  width: 16px;
  text-align: center;
}

/* Widget Responsive */
@media (max-width: 768px) {
  .floating-widgets {
    top: calc(var(--navbar-height) + var(--spacing-4));
    right: var(--spacing-4);
    gap: var(--spacing-2);
  }
  
  .floating-widget {
    width: 44px;
    height: 44px;
  }
  
  .widget-icon {
    font-size: var(--font-size-base);
  }
  
  .widget-dropdown {
    right: calc(100% + var(--spacing-2));
    min-width: 140px;
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: var(--glass-background);
  backdrop-filter: var(--glass-backdrop);
  border-bottom: 1px solid var(--glass-border);
  z-index: var(--z-index-sticky);
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
}

.nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.nav-brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: var(--transition-base);
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.logo-symbol {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-symbol::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  animation: shimmer 3s infinite;
}

.logo-icon {
  width: 20px;
  height: 20px;
  background: var(--color-white);
  border-radius: var(--border-radius-sm);
  position: relative;
}

.logo-icon::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: var(--color-primary-500);
  border-radius: var(--border-radius-full);
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.brand-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-8);
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-2) 0;
  position: relative;
  transition: var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link-cta {
  background: var(--gradient-primary);
  color: var(--color-white) !important;
  padding: var(--spacing-3) var(--spacing-6) !important;
  border-radius: var(--border-radius-full);
  position: relative;
  overflow: hidden;
}

.nav-link-cta::after {
  display: none;
}

.nav-link-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-base);
}

.nav-link-cta:hover::before {
  left: 100%;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: var(--spacing-2);
  border-radius: var(--border-radius-md);
  transition: var(--transition-base);
}

.mobile-menu-toggle:hover {
  background: var(--color-surface);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--border-radius-full);
  transition: var(--transition-base);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-index-dropdown);
}

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

.mobile-menu-content {
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.mobile-nav-link {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--spacing-3);
  border-radius: var(--border-radius-md);
  transition: var(--transition-base);
}

.mobile-nav-link:hover {
  background: var(--color-surface);
  color: var(--color-primary-400);
}

/* Desktop Navigation - Hidden on Mobile */
.desktop-nav {
  display: flex;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: var(--z-index-fixed);
  box-shadow: var(--shadow-lg);
}

.scroll-to-top:hover {
  transform: translateY(16px);
  box-shadow: var(--shadow-xl);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-4);
  }
  
  .nav-container {
    padding: 0 var(--spacing-4);
  }
  
  .language-toggle {
    top: var(--spacing-4);
    right: var(--spacing-4);
  }
  
  .brand-text {
    font-size: var(--font-size-lg);
  }
  
  .logo-symbol {
    width: 32px;
    height: 32px;
  }
  
  .logo-icon {
    width: 16px;
    height: 16px;
  }
  
  .logo-icon::before {
    width: 6px;
    height: 6px;
  }
}

/* Utility Classes */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.glass {
  background: var(--glass-background);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
}

.ripple-effect {
  position: relative;
  overflow: hidden;
}

.ripple-effect::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-full);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

/* Text Utilities */
.no-wrap {
  white-space: nowrap;
}

.ripple-effect:active::before {
  width: 300px;
  height: 300px;
}