/* ========================================
   全局样式 - سەھرە مېدىيا 视频流媒体平台
   维吾尔语RTL布局 · 深色主题 · 移动端优先
   ======================================== */

/* ---------- CSS变量 / 主题色 ---------- */
:root {
  /* 主色调 */
  --color-primary: #e74c3c;
  --color-primary-dark: #c0392b;
  --color-primary-light: #ff6b6b;
  --color-secondary: #f39c12;
  --color-accent: #e67e22;

  /* 背景色 */
  --color-bg: #0a0a0f;
  --color-bg-secondary: #14141f;
  --color-bg-card: #1a1a2e;
  --color-bg-elevated: #222240;

  /* 文字色 */
  --color-text: #ffffff;
  --color-text-secondary: #a0a0b8;
  --color-text-muted: #6c6c80;
  --color-text-link: #5dade2;

  /* 边框/分割线 */
  --color-border: #2a2a40;
  --color-divider: #1e1e35;

  /* 状态色 */
  --color-success: #2ecc71;
  --color-warning: #f1c40f;
  --color-error: #e74c3c;
  --color-vip: #ffd700;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-round: 50%;

  /* 字号 */
  --font-xs: 11px;
  --font-sm: 13px;
  --font-md: 15px;
  --font-lg: 17px;
  --font-xl: 20px;
  --font-xxl: 24px;
  --font-title: 28px;

  /* TabBar高度 */
  --tabbar-height: 56px;

  /* 安全区域 */
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ---------- 全局重置 ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  direction: rtl;
  text-align: right;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-text-link);
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

/* ---------- #app 主容器 ---------- */
#app {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
  min-height: 100vh;
  padding-bottom: calc(var(--tabbar-height) + var(--safe-bottom) + 10px);
  position: relative;
}

/* 页面切换动画 */
#app.page-enter {
  animation: pageFadeIn 0.25s ease-out;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 底部TabBar ---------- */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--tabbar-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  max-width: 750px;
  margin: 0 auto;
}

.tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: var(--spacing-xs) 0;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.tabbar-item:active {
  transform: scale(0.92);
}

.tabbar-icon {
  width: 24px;
  height: 24px;
  margin-bottom: 2px;
  object-fit: contain;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.tabbar-item.active .tabbar-icon {
  opacity: 1;
}

.tabbar-text {
  font-size: var(--font-xs);
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.tabbar-item.active .tabbar-text {
  color: var(--color-primary);
  font-weight: 600;
}

/* 隐藏TabBar的辅助类 */
.tabbar-hidden {
  display: none !important;
}

/* ---------- 通用卡片组件 ---------- */
.card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--spacing-md);
  transition: transform 0.2s;
}

.card:active {
  transform: scale(0.98);
}

.card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-body {
  padding: var(--spacing-md);
}

.card-title {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-desc {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 卡片横版（水平布局） */
.card-horizontal {
  display: flex;
  flex-direction: row-reverse; /* RTL下反向 */
  align-items: stretch;
}

.card-horizontal .card-cover {
  width: 140px;
  aspect-ratio: auto;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  flex-shrink: 0;
}

.card-horizontal .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ---------- 通用列表 ---------- */
.list {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  margin: var(--spacing-md);
  overflow: hidden;
}

.list-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  min-height: 52px;
  transition: background-color 0.15s;
  cursor: pointer;
}

.list-item:active {
  background-color: var(--color-bg-elevated);
}

.list-item + .list-item {
  border-top: 1px solid var(--color-divider);
}

.list-item-icon {
  width: 24px;
  height: 24px;
  margin-left: var(--spacing-md);
  flex-shrink: 0;
}

.list-item-content {
  flex: 1;
  min-width: 0;
}

.list-item-title {
  font-size: var(--font-md);
  color: var(--color-text);
}

.list-item-subtitle {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.list-item-arrow {
  width: 16px;
  height: 16px;
  margin-right: var(--spacing-sm);
  transform: rotate(180deg); /* RTL下箭头翻转 */
  opacity: 0.4;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: var(--font-md);
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.btn-primary:active {
  box-shadow: 0 2px 6px rgba(231, 76, 60, 0.2);
}

.btn-secondary {
  background-color: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-vip {
  background: linear-gradient(135deg, #ffd700, #f39c12);
  color: #1a1a2e;
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.btn-block {
  width: 100%;
  display: flex;
}

.btn-sm {
  padding: 6px 14px;
  font-size: var(--font-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 32px;
  font-size: var(--font-lg);
  border-radius: var(--radius-lg);
}

.btn-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ---------- 加载动画 ---------- */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 内联加载（列表底部） */
.loading-inline {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
  font-size: var(--font-sm);
}

.loading-inline .loading-spinner {
  width: 20px;
  height: 20px;
  border-width: 2px;
  margin-left: var(--spacing-sm);
}

/* 空数据提示 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl) var(--spacing-xl);
  color: var(--color-text-muted);
}

.empty-state img {
  width: 120px;
  height: 120px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state p {
  font-size: var(--font-md);
}

/* ---------- 轮播组件 ---------- */
.swiper {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin: var(--spacing-md) 0;
}

.swiper-wrapper {
  display: flex;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.swiper-slide {
  flex-shrink: 0;
  width: 100%;
}

.swiper-slide img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.swiper-pagination {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 10;
}

.swiper-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: all 0.3s;
}

.swiper-dot.active {
  width: 18px;
  border-radius: 3px;
  background: var(--color-primary);
}

/* ---------- 视频网格布局 ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-md);
}

.video-grid-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s;
}

.video-grid-item:active {
  transform: scale(0.95);
}

.video-grid-item .cover {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.video-grid-item .title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px var(--spacing-sm) var(--spacing-sm);
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  font-size: var(--font-xs);
  color: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-grid-item .tag {
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-xs);
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

/* 两列网格（横版封面） */
.video-grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.video-grid-cols-2 .cover {
  aspect-ratio: 16/9;
}

/* ---------- 页面头部 ---------- */
.page-header {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  min-height: 50px;
  background-color: var(--color-bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.page-header-back {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: var(--spacing-sm);
}

.page-header-back img {
  width: 20px;
  height: 20px;
  transform: rotate(180deg); /* RTL下返回箭头翻转 */
}

.page-header-title {
  flex: 1;
  font-size: var(--font-lg);
  font-weight: 700;
  text-align: center;
}

.page-header-action {
  margin-right: var(--spacing-sm);
}

/* ---------- 搜索框 ---------- */
.search-bar {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  padding: var(--spacing-sm) var(--spacing-lg);
  margin: var(--spacing-md) var(--spacing-md);
}

.search-bar input {
  flex: 1;
  padding: var(--spacing-sm);
  color: var(--color-text);
  font-size: var(--font-md);
}

.search-bar input::placeholder {
  color: var(--color-text-muted);
}

.search-bar .search-icon {
  width: 18px;
  height: 18px;
  margin-left: var(--spacing-sm);
  opacity: 0.5;
}

/* ---------- 分类标签 ---------- */
.cate-tabs {
  display: flex;
  overflow-x: auto;
  padding: var(--spacing-sm) var(--spacing-md);
  gap: var(--spacing-sm);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.cate-tabs::-webkit-scrollbar {
  display: none;
}

.cate-tab {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: var(--radius-xl);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-elevated);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.cate-tab.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
}

/* ---------- VIP徽标 ---------- */
.vip-badge {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(135deg, #ffd700, #f39c12);
  color: #1a1a2e;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

/* ---------- Toast提示 ---------- */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: var(--font-md);
  z-index: 10000;
  animation: toastFade 2s ease forwards;
  pointer-events: none;
}

@keyframes toastFade {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
  15% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  75% { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------- 分割线 ---------- */
.divider {
  height: 1px;
  background-color: var(--color-divider);
  margin: 0 var(--spacing-lg);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-xs);
}

.tag-primary {
  background-color: rgba(231, 76, 60, 0.15);
  color: var(--color-primary);
}

.tag-vip {
  background-color: rgba(255, 215, 0, 0.15);
  color: var(--color-vip);
}

/* ---------- 视频详情页 ---------- */
.video-detail {
  padding-bottom: 80px;
}

.video-player-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
}

.video-player-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-info {
  padding: var(--spacing-lg);
}

.video-info .title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.video-info .meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
  margin-bottom: var(--spacing-md);
}

.video-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-md) var(--spacing-lg);
}

.video-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--color-text-secondary);
  font-size: var(--font-xs);
  cursor: pointer;
}

.video-action-btn img {
  width: 22px;
  height: 22px;
}

.video-action-btn.active {
  color: var(--color-primary);
}

/* 剧集列表 */
.episode-list {
  padding: var(--spacing-md);
}

.episode-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.episode-item {
  min-width: 48px;
  padding: 8px 14px;
  text-align: center;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-elevated);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.episode-item.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
}

.episode-item.vip {
  position: relative;
}

/* ---------- 个人中心 ---------- */
.mine-header {
  position: relative;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: linear-gradient(180deg, var(--color-bg-elevated), var(--color-bg));
}

.mine-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  object-fit: cover;
}

.mine-name {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-top: var(--spacing-sm);
}

.mine-vip-tag {
  margin-top: var(--spacing-xs);
}

/* ---------- VIP购买页 ---------- */
.vip-card {
  background: linear-gradient(135deg, #1a1a2e, #2a2a40);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin: var(--spacing-md);
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.vip-card.selected {
  border-color: var(--color-vip);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.15);
}

/* ---------- 登录页 ---------- */
.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding: var(--spacing-xl);
}

.login-logo {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  margin-bottom: var(--spacing-xl);
}

.login-btn {
  width: 100%;
  max-width: 300px;
}

/* ---------- 模态框 ---------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  width: 85%;
  max-width: 360px;
  padding: var(--spacing-xl);
  animation: modalIn 0.25s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}

/* ---------- 响应式适配 ---------- */

/* 小屏手机 */
@media (max-width: 360px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 平板/大屏 */
@media (min-width: 768px) {
  .video-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .video-grid-cols-2 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 超大屏 */
@media (min-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }
.text-vip { color: var(--color-vip); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-1 { flex: 1; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hidden { display: none !important; }