/**
 * Floating Navigation Styles
 * C-Enhanced混合架构 - 浮动导航样式
 *
 * 特性：
 * - 桌面端和移动端适配
 * - 平滑动画效果
 * - 现代毛玻璃效果
 * - 无障碍友好
 */

/* ========================================
   主容器
======================================== */
.floating-nav {
  position: fixed !important;
  bottom: 20px !important;
  right: 20px !important;
  z-index: 999 !important;
  display: block !important;
  visibility: visible;      /* 默认显示 */
  opacity: 1;               /* 默认不透明 */
  transition: all 0.3s ease;  /* 平滑过渡 */
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* 显示状态 - 由JS添加 */
.floating-nav.visible {
  visibility: visible;
  opacity: 1;
}

/* ========================================
   主按钮
======================================== */
.floating-nav-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #a855f7, #9333ea);
  border: none;
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.3s ease;
  outline: none;
}

.floating-nav-btn:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.5);
}

.floating-nav-btn:active {
  transform: scale(0.95);
}

.floating-nav-btn:focus {
  outline: 2px solid #a855f7;
  outline-offset: 2px;
}

/* 图标 */
.floating-nav-icon {
  font-size: 24px;
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.3));
}

/* 通知点 */
.notification-dot {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  background: #ef4444;
  border-radius: 50%;
  border: 2px solid #0b0b0c;
  animation: pulse 2s infinite;
  display: none;
}

.notification-dot.show {
  display: block;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.1);
  }
}

/* ========================================
   菜单容器
======================================== */
.floating-nav-menu {
  position: absolute;
  bottom: 70px;
  right: 0;
  width: 240px;
  background: rgba(17, 17, 19, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: 0.5rem;
  display: none;
  opacity: 0;
  transform: scale(0.8) translateY(10px);
  transition: all 0.3s ease;
}

.floating-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.floating-nav-close {
  margin-left: auto;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.floating-nav-close:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.35);
}

.floating-nav-close:focus-visible {
  outline: 2px solid #e53e3e;
  outline-offset: 2px;
}

.floating-nav-menu.show {
  display: block;
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* ========================================
   菜单项
======================================== */
.floating-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  color: #d1d5db;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
  border-left: 3px solid transparent;
  outline: none;
}

.floating-nav-item:hover {
  background: rgba(168, 85, 247, 0.1);
  border-left-color: #a855f7;
  color: #fff;
  transform: translateX(4px);
}

.floating-nav-item:focus {
  outline: 2px solid #a855f7;
  outline-offset: -2px;
}

.floating-nav-item:active {
  transform: translateX(4px) scale(0.98);
}

/* 当前页面高亮 */
.floating-nav-item.current-page {
  background: rgba(168, 85, 247, 0.20);
  border-left-color: #a855f7;
  border-left-width: 4px;
  color: #fff;
  font-weight: 600;
  position: relative;
}

.floating-nav-item.current-page:hover {
  transform: translateX(4px);
}

/* 图标 */
.floating-nav-item-icon {
  font-size: 1.25rem;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

/* 标签 */
.floating-nav-item-label {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
}

/* 游戏数量 */
.floating-nav-item-count {
  font-size: 0.75rem;
  background: rgba(168, 85, 247, 0.2);
  color: #a855f7;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-weight: 700;
  min-width: 20px;
  text-align: center;
}

/* 分割线 */
.floating-nav-separator {
  height: 1px;
  background: rgba(147, 51, 234, 0.2);
  margin: 0.5rem 0;
}

/* 区域容器 - 覆盖styles.css中的flex布局 */
.floating-nav .nav-section {
  display: block !important;
  margin-bottom: 0.75rem;
}

.floating-nav .nav-section h4 {
  color: #a855f7 !important;
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.5px !important;
  margin: 0.75rem 0 0.5rem 0 !important;
  padding: 0 !important;
  display: block !important;
}

/* "所有游戏"特殊样式 */
.floating-nav-item.all-games {
  background: linear-gradient(90deg, rgba(168, 85, 247, 0.1), transparent);
  border: 1px solid rgba(147, 51, 234, 0.3);
  font-weight: 600;
}

.floating-nav-item.all-games:hover {
  background: linear-gradient(90deg, rgba(168, 85, 247, 0.2), rgba(168, 85, 247, 0.05));
  border-color: #a855f7;
}

/* ========================================
   响应式适配
======================================== */

/* 平板设备 */
@media (max-width: 1024px) {
  .floating-nav-btn {
    width: 52px;
    height: 52px;
  }

  .floating-nav-icon {
    font-size: 22px;
  }

  .floating-nav-menu {
    width: 220px;
  }
}

/* 移动设备 */
@media (max-width: 768px) {
  .floating-nav {
    bottom: 16px !important;
    right: 16px !important;
  }

  .floating-nav-btn {
    width: 48px;
    height: 48px;
  }

  .floating-nav-icon {
    font-size: 20px;
  }

  .floating-nav-menu {
    width: 200px;
    bottom: 60px;
  }

  .floating-nav-item {
    padding: 0.625rem;
  }

  .floating-nav-item-icon {
    font-size: 1.125rem;
  }

  .floating-nav-item-label {
    font-size: 0.875rem;
  }
}

/* 小屏设备 */
@media (max-width: 480px) {
  .floating-nav {
    bottom: 12px !important;
    right: 12px !important;
  }

  .floating-nav-btn {
    width: 44px;
    height: 44px;
  }

  .floating-nav-icon {
    font-size: 18px;
  }

  .floating-nav-menu {
    width: 180px;
    bottom: 54px;
    right: -10px;
  }

  .floating-nav-item {
    padding: 0.5rem;
  }

  .floating-nav-item-label {
    font-size: 0.8125rem;
  }
}

/* ========================================
   动画增强
======================================== */

/* 入场动画 */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.floating-nav-btn {
  animation: slideInUp 0.3s ease-out;
}

/* 菜单展开动画 */
@keyframes menuExpand {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.floating-nav-menu.show {
  animation: menuExpand 0.2s ease-out;
}

/* 悬停效果增强 */
.floating-nav-item {
  will-change: transform, background-color;
}

.floating-nav-item:hover {
  will-change: transform;
}

/* ========================================
   无障碍优化
======================================== */

/* 减少动画偏好设置 */
@media (prefers-reduced-motion: reduce) {
  .floating-nav-btn,
  .floating-nav-item,
  .floating-nav-menu {
    transition: none;
    animation: none;
  }

  .notification-dot {
    animation: none;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .floating-nav-menu {
    background: rgba(0, 0, 0, 0.95);
    border: 2px solid #a855f7;
  }

  .floating-nav-item {
    border-left-width: 4px;
  }

  .floating-nav-item:hover {
    background: rgba(168, 85, 247, 0.3);
  }
}

/* 焦点可见性 */
.floating-nav-btn:focus-visible,
.floating-nav-item:focus-visible {
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.5);
}

/* ========================================
   打印样式
======================================== */
@media print {
  .floating-nav {
    display: none !important;
  }
}

/* ========================================
   深色模式适配
======================================== */
@media (prefers-color-scheme: dark) {
  .floating-nav-menu {
    background: rgba(15, 15, 17, 0.95);
  }
}

/* ========================================
   性能优化
======================================== */

/* 使用transform而非改变布局属性 */
.floating-nav-menu.show {
  transform: translateY(0) scale(1);
}

/* 硬件加速 */
.floating-nav-btn,
.floating-nav-menu {
  will-change: transform, opacity;
  transform: translateZ(0);
}

/* ========================================
   Mobile Menu V2
======================================== */
.mobile-menu-v2 {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9999;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: none;
}

.mobile-menu-v2.open {
  transform: translateX(0);
}

.mobile-menu-v2-inner {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 90%;
  max-width: 360px;
  background: #050505;
  color: #fff;
  display: flex;
  flex-direction: column;
}

.mobile-menu-v2-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-v2-title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
}

.mobile-menu-v2-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-menu-v2-content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.mobile-menu-v2-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu-v2-play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, #8b0000, #c53030);
  border-radius: 0.75rem;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.mobile-menu-v2-subtitle {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

.mobile-menu-v2-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-menu-v2-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  color: #f4f4f5;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.mobile-menu-v2-link span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.mobile-menu-v2-link:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
}

.mobile-menu-v2-link.is-active {
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(139, 0, 0, 0.3);
}

@media (max-width: 768px) {
  .mobile-menu-v2 {
    display: block;
  }
}