/* ==========================================================================
   zombie-couple.xyz — AI 僵尸情侣视频生成器 (Zombie Love Story)
   独立样式表 (style.css)
   包含：深浅色主题变量、全局排版、动画关键帧、双栏工作台布局、组件与弹窗样式
   ========================================================================== */

/* 1. 主题颜色变量 (Light & Dark Mode Tokens) */
:root {
  --color-bg: #f6f6f7;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-hover: #f0f0f2;
  --color-border: #e2e2e6;
  --color-border-subtle: #ececef;
  --color-text: #141416;
  --color-text-muted: #686873;
  --color-accent: #e11d48;
  --color-accent-hover: #be123c;
  --color-accent-soft: rgba(225, 29, 72, 0.12);
  --color-emerald: #10b981;
  --color-amber: #f59e0b;
  --shadow-card: 0 4px 20px -2px rgba(20, 20, 22, 0.06);
}

html.dark {
  --color-bg: #0b0b0d;
  --color-surface: #141418;
  --color-surface-elevated: #18181d;
  --color-surface-hover: #222229;
  --color-border: #2a2a33;
  --color-border-subtle: #202027;
  --color-text: #f3f3f6;
  --color-text-muted: #9494a1;
  --color-accent: #f43f5e;
  --color-accent-hover: #e11d48;
  --color-accent-soft: rgba(244, 63, 94, 0.15);
  --shadow-card: 0 8px 28px -4px rgba(0, 0, 0, 0.45);
}

/* 2. 全局基础重置与字体排版 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: #f43f5e;
  color: #ffffff;
}

/* 3. 自定义滚动条样式 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(150, 150, 165, 0.25);
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(150, 150, 165, 0.45);
}

/* 4. 关键帧动画与氛围特效 */
@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.08);
    opacity: 0.4;
  }
  100% {
    transform: scale(0.95);
    opacity: 0.8;
  }
}

.animate-pulse-slow {
  animation: pulse-ring 2.6s ease-in-out infinite;
}

@keyframes fog-drift {
  0% {
    transform: translateX(-8%) scale(1.05);
    opacity: 0.45;
  }
  50% {
    transform: translateX(8%) scale(1.12);
    opacity: 0.7;
  }
  100% {
    transform: translateX(-8%) scale(1.05);
    opacity: 0.45;
  }
}

.fog-layer {
  animation: fog-drift 7s ease-in-out infinite;
}

/* 深度长文首字下沉排版 */
.drop-cap::first-letter {
  float: left;
  margin-right: 0.6rem;
  margin-top: 0.15rem;
  font-size: 3.1rem;
  line-height: 0.9;
  font-weight: 800;
  color: var(--color-accent);
}

/* 5. 顶部导航栏 (Header) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 3.5rem;
  flex-shrink: 0;
  border-bottom: 1px solid var(--color-border);
  background-color: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
}

.brand-logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #f43f5e 0%, #f59e0b 100%);
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.25);
  transition: transform 0.2s ease;
}

.brand-logo-icon:hover {
  transform: scale(1.05);
}

/* 语言切换列表 (/ = English, /zh/ = 中文) */
.language-list {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex-shrink: 0;
}

.language-list a {
  padding: 0.25rem 0.5rem;
  font-size: 12px;
  font-weight: 600;
  border-radius: 0.5rem;
  color: var(--color-text-muted);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.language-list a:hover {
  color: var(--color-accent);
  background-color: var(--color-surface-hover);
}

.language-list a.curr {
  color: var(--color-text);
  font-weight: 700;
  background-color: var(--color-surface-elevated);
}

@media (max-width: 640px) {
  .language-list a {
    padding: 0.25rem 0.375rem;
    font-size: 11px;
  }
}

.domain-badge {
  padding: 0.125rem 0.375rem;
  font-size: 10px;
  font-weight: 600;
  border-radius: 0.25rem;
  background-color: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* 6. 双栏主工作区布局 (Two-Column Workspace) */
.workspace-container {
  max-width: 1600px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.generator-sidebar,
.content-main-panel {
  border-radius: 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-elevated);
  box-shadow: var(--shadow-card);
}

/* 7. 照片上传槽与角色互换按钮 */
.upload-slot-card {
  display: flex;
  flex-direction: column;
  border-radius: 0.75rem;
  border: 2px dashed var(--color-border);
  background-color: var(--color-surface);
  padding: 0.625rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  position: relative;
}

.upload-slot-card--infected:hover {
  border-color: rgba(244, 63, 94, 0.65);
}

.upload-slot-card--survivor:hover {
  border-color: rgba(16, 185, 129, 0.65);
}

.upload-dropzone {
  margin-top: auto;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 7rem;
  border-radius: 0.5rem;
  background-color: var(--color-surface-hover);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--color-border-subtle);
}

.swap-roles-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-elevated);
  color: var(--color-text);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  cursor: pointer;
}

.swap-roles-btn:hover {
  background-color: #f43f5e;
  border-color: #f43f5e;
  color: #ffffff;
}

/* 8. 场景卡片与分辨率档位卡片 */
.world-card,
.res-card {
  transition: all 0.2s ease;
  cursor: pointer;
}

.world-card--active,
.res-card--active {
  border: 2px solid #f43f5e !important;
  background-color: rgba(244, 63, 94, 0.1) !important;
}

/* 9. 主生成按钮与渐变高亮 */
.btn-generate-video {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  background: linear-gradient(90deg, #e11d48 0%, #f43f5e 50%, #f59e0b 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.875rem;
  box-shadow: 0 10px 20px -5px rgba(244, 63, 94, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.15s ease, filter 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-generate-video:hover {
  filter: brightness(1.08);
}

.btn-generate-video:active {
  transform: scale(0.99);
}

/* 10. 9:16 竖屏示例展示卡片与悬浮播放钮 */
.showcase-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.showcase-card:hover {
  border-color: rgba(244, 63, 94, 0.6);
  transform: translateY(-2px);
}

.showcase-play-circle {
  width: 3rem;
  height: 3rem;
  border-radius: 9999px;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s ease;
}

.showcase-card:hover .showcase-play-circle {
  transform: scale(1.1);
}

/* 11. 13秒四镜头影院预览播放器遮罩层 */
.player-fog-layer {
  position: absolute;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.55);
  mix-blend-mode: multiply;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.player-warm-layer {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(245, 158, 11, 0.35) 0%, rgba(244, 63, 94, 0.2) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.player-flash-layer {
  position: absolute;
  inset: 0;
  background-color: #ffffff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

/* 12. 响应式屏幕适配 (Desktop Fixed Height Split View) */
@media (min-width: 768px) {
  .workspace-container {
    height: calc(100vh - 3.5rem);
    overflow: hidden;
  }
  .generator-sidebar,
  .content-main-panel {
    height: 100%;
    overflow: hidden;
  }
}


/* =========================================================================
   16. TAILWIND 无法生成的补充工具类
   （var() 任意值 + 透明度修饰符在 v3 JIT 下不会输出，这里手写补齐）
   ========================================================================= */
.bg-\[var\(--color-bg\)\]\/85 {
  background-color: color-mix(in srgb, var(--color-bg) 85%, transparent);
}

.hover\:bg-\[var\(--color-surface-hover\)\]\/50:hover {
  background-color: color-mix(in srgb, var(--color-surface-hover) 50%, transparent);
}

.text-\[var\(--color-text\)\]\/85 {
  color: color-mix(in srgb, var(--color-text) 85%, transparent);
}

.text-\[var\(--color-text\)\]\/90 {
  color: color-mix(in srgb, var(--color-text) 90%, transparent);
}

.py-0\.2 {
  padding-top: 0.05rem;
  padding-bottom: 0.05rem;
}