/* 渐变背景主题库 - 参考大厂热门设计 */

/* 基础渐变容器 */
.gradient-background {
  transition: background 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
  background-attachment: fixed;
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  position: relative;
}

/* 渐变动画 */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* ==== 大厂风格渐变主题 ==== */

/* 1. 深蓝夜空 - 与原项目完全一致的颜色 */
.gradient-deep-blue {
  background: linear-gradient(
    135deg,
    #0a0a2a,
    /* 深蓝色起点 */ #0f1a4d,
    /* 深蓝紫色 */ #1e3a6e,
    /* 中蓝色 */ #2a4580,
    /* 亮蓝色 */ #3d3d6e,
    /* 蓝紫色 */ #4d3a6e /* 紫色结束点 */
  );
  background-attachment: fixed; /* 固定背景，防止滚动时移动 */
}

/* 2. 极光紫 - Discord/Figma风格 */
.gradient-aurora {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
}

/* 3. 樱花粉 - Instagram风格 */
.gradient-sakura {
  background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 25%, #ff9a9e 50%, #fecfef 75%, #fecfef 100%);
}

/* 4. 霓虹夜景 - Spotify/Netflix风格 */
.gradient-neon {
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 25%, #24243e 50%, #ff006e 75%, #8338ec 100%);
}

/* 5. 海洋深蓝 - Twitter风格 */
.gradient-ocean {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 25%, #00c6ff 50%, #0072ff 75%, #1e3c72 100%);
}

/* 6. 黄金时光 - Apple风格 */
.gradient-golden {
  background: linear-gradient(135deg, #f7971e 0%, #ffd200 25%, #ffb347 50%, #ff8c42 75%, #f7931e 100%);
}

/* 7. 翡翠绿野 - Spotify绿 */
.gradient-emerald {
  background: linear-gradient(135deg, #11998e 0%, #38ef7d 25%, #4ecdc4 50%, #44a08d 75%, #093637 100%);
}

/* 8. 宇宙星辰 - GitHub暗色主题风格 */
.gradient-cosmic {
  background: linear-gradient(135deg, #0c0c0c 0%, #161b22 25%, #21262d 50%, #30363d 75%, #484f58 100%);
}

/* 9. 薰衣草 - Pinterest风格 */
.gradient-lavender {
  background: linear-gradient(135deg, #ee9ca7 0%, #ffdde1 25%, #c471ed 50%, #f64f59 75%, #ee9ca7 100%);
}

/* 10. 深紫神秘 - Notion风格 */
.gradient-mystic {
  background: linear-gradient(135deg, #2d1b69 0%, #11998e 25%, #38ef7d 50%, #667eea 75%, #764ba2 100%);
}

/* 11. 钢铁机械 - VS Code风格 */
.gradient-steel {
  background: linear-gradient(135deg, #232526 0%, #414345 25%, #636363 50%, #a8a8a8 75%, #232526 100%);
}

/* 12. 薄荷清新 - Mint Mobile风格 */
.gradient-mint {
  background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 25%, #dcedc1 50%, #a8e6cf 75%, #56ab2f 100%);
}

/* 13. 火山岩浆 - YouTube风格 */
.gradient-volcano {
  background: linear-gradient(135deg, #ff4b1f 0%, #ff9068 25%, #ff6b35 50%, #f7931e 75%, #ff4b1f 100%);
}

/* 14. 水晶冰雪 - Windows 11风格 */
.gradient-crystal {
  background: linear-gradient(135deg, #e6f3ff 0%, #b3d9ff 25%, #80bfff 50%, #4da6ff 75%, #1a8cff 100%);
}

/* 15. 光谱彩虹 - Google风格 */
.gradient-spectrum {
  background: linear-gradient(
    135deg,
    #ff6b6b 0%,
    #ffa726 14%,
    #ffeb3b 28%,
    #66bb6a 42%,
    #42a5f5 56%,
    #ab47bc 70%,
    #ff6b6b 100%
  );
}

/* 16. 暗影深渊 - Dark mode风格 */
.gradient-shadow {
  background: linear-gradient(135deg, #000000 0%, #1c1c1c 25%, #383838 50%, #2c2c2c 75%, #000000 100%);
}

/* 17. 玫瑰金 - Instagram Stories风格 */
.gradient-rose-gold {
  background: linear-gradient(135deg, #f7797d 0%, #fbd786 25%, #c6ffdd 50%, #fbd786 75%, #f7797d 100%);
}

/* 18. 极光北欧 - Dribbble风格 */
.gradient-nordic {
  background: linear-gradient(135deg, #667db6 0%, #0082c8 25%, #0082c8 50%, #667db6 75%, #667db6 100%);
}

/* 19. 赛博朋克 - Cyberpunk 2077风格 */
.gradient-cyberpunk {
  background: linear-gradient(135deg, #0f3460 0%, #16537e 25%, #ff006e 50%, #fb8500 75%, #8338ec 100%);
}

/* 20. 夕阳西下 - Sunset风格 */
.gradient-sunset {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 25%, #fa709a 50%, #fee140 75%, #fa709a 100%);
}

/* ==== 渐变选择器样式 ==== */

.gradient-selection,
.gradient-selection-full {
  margin-top: 15px;
}

.gradient-mini-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-top: 10px;
  padding: 10px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.gradient-mini-preview {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  background: transparent;
}

.gradient-mini-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: 300% 300%;
  animation: gradientShift 8s ease infinite;
  border-radius: 50%;
  z-index: 1;
}

.gradient-mini-preview:hover {
  transform: scale(1.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.gradient-mini-preview.active {
  border-color: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
  transform: scale(1.1);
}

/* 为每个预览添加对应的渐变 */
.gradient-mini-preview.gradient-deep-blue::before {
  background: linear-gradient(
    135deg,
    #0a0a2a,
    /* 深蓝色起点 */ #0f1a4d,
    /* 深蓝紫色 */ #1e3a6e,
    /* 中蓝色 */ #2a4580,
    /* 亮蓝色 */ #3d3d6e,
    /* 蓝紫色 */ #4d3a6e /* 紫色结束点 */
  );
}
.gradient-mini-preview.gradient-aurora::before {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
}
.gradient-mini-preview.gradient-sakura::before {
  background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 25%, #ff9a9e 50%, #fecfef 75%, #fecfef 100%);
}
.gradient-mini-preview.gradient-neon::before {
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 25%, #24243e 50%, #ff006e 75%, #8338ec 100%);
}
.gradient-mini-preview.gradient-ocean::before {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 25%, #00c6ff 50%, #0072ff 75%, #1e3c72 100%);
}
.gradient-mini-preview.gradient-golden::before {
  background: linear-gradient(135deg, #f7971e 0%, #ffd200 25%, #ffb347 50%, #ff8c42 75%, #f7931e 100%);
}
.gradient-mini-preview.gradient-emerald::before {
  background: linear-gradient(135deg, #11998e 0%, #38ef7d 25%, #4ecdc4 50%, #44a08d 75%, #093637 100%);
}
.gradient-mini-preview.gradient-cosmic::before {
  background: linear-gradient(135deg, #0c0c0c 0%, #161b22 25%, #21262d 50%, #30363d 75%, #484f58 100%);
}
.gradient-mini-preview.gradient-lavender::before {
  background: linear-gradient(135deg, #ee9ca7 0%, #ffdde1 25%, #c471ed 50%, #f64f59 75%, #ee9ca7 100%);
}
.gradient-mini-preview.gradient-mystic::before {
  background: linear-gradient(135deg, #2d1b69 0%, #11998e 25%, #38ef7d 50%, #667eea 75%, #764ba2 100%);
}
.gradient-mini-preview.gradient-steel::before {
  background: linear-gradient(135deg, #232526 0%, #414345 25%, #636363 50%, #a8a8a8 75%, #232526 100%);
}
.gradient-mini-preview.gradient-mint::before {
  background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 25%, #dcedc1 50%, #a8e6cf 75%, #56ab2f 100%);
}
.gradient-mini-preview.gradient-volcano::before {
  background: linear-gradient(135deg, #ff4b1f 0%, #ff9068 25%, #ff6b35 50%, #f7931e 75%, #ff4b1f 100%);
}
.gradient-mini-preview.gradient-crystal::before {
  background: linear-gradient(135deg, #e6f3ff 0%, #b3d9ff 25%, #80bfff 50%, #4da6ff 75%, #1a8cff 100%);
}
.gradient-mini-preview.gradient-spectrum::before {
  background: linear-gradient(
    135deg,
    #ff6b6b 0%,
    #ffa726 14%,
    #ffeb3b 28%,
    #66bb6a 42%,
    #42a5f5 56%,
    #ab47bc 70%,
    #ff6b6b 100%
  );
}
.gradient-mini-preview.gradient-shadow::before {
  background: linear-gradient(135deg, #000000 0%, #1c1c1c 25%, #383838 50%, #2c2c2c 75%, #000000 100%);
}
.gradient-mini-preview.gradient-rose-gold::before {
  background: linear-gradient(135deg, #f7797d 0%, #fbd786 25%, #c6ffdd 50%, #fbd786 75%, #f7797d 100%);
}
.gradient-mini-preview.gradient-nordic::before {
  background: linear-gradient(135deg, #667db6 0%, #0082c8 25%, #0082c8 50%, #667db6 75%, #667db6 100%);
}
.gradient-mini-preview.gradient-cyberpunk::before {
  background: linear-gradient(135deg, #0f3460 0%, #16537e 25%, #ff006e 50%, #fb8500 75%, #8338ec 100%);
}
.gradient-mini-preview.gradient-sunset::before {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 25%, #fa709a 50%, #fee140 75%, #fa709a 100%);
}

/* ==== 快速主题预设按钮 ==== */
.quick-theme-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.quick-theme-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  gap: 4px;
}

.quick-theme-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
  color: #fff;
}

.quick-theme-btn i {
  font-size: 10px;
}

.quick-theme-btn.random {
  background: rgba(100, 100, 255, 0.15);
  border-color: rgba(100, 100, 255, 0.3);
}

.quick-theme-btn.random:hover {
  background: rgba(100, 100, 255, 0.25);
  border-color: rgba(100, 100, 255, 0.4);
}

/* ==== 粒子效果 ==== */
.particles-effect {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  animation: float 6s infinite linear;
}

@keyframes float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* ==== 光晕效果 ==== */
.glow-effect {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.3;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  animation: glow-float 8s infinite ease-in-out;
}

@keyframes glow-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

/* ==== 响应式设计 ==== */
@media (max-width: 768px) {
  .gradient-mini-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
  }

  .gradient-mini-preview {
    width: 28px;
    height: 28px;
  }

  .quick-theme-buttons {
    gap: 4px;
  }

  .quick-theme-btn {
    font-size: 10px;
    padding: 5px 8px;
  }

  .background-settings-panel {
    right: 15px;
    width: calc(100vw - 30px);
    max-width: 350px;
    top: 70px;
  }

  .background-settings-container {
    right: 70px;
    top: 15px;
  }

  .background-settings-btn {
    width: 40px;
    height: 40px;
  }

  .background-settings-btn i {
    font-size: 16px;
  }
}

/* ==== 滚动条样式 ==== */
.gradient-mini-grid::-webkit-scrollbar {
  width: 6px;
}

.gradient-mini-grid::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.gradient-mini-grid::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.gradient-mini-grid::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* ==== 滑块样式 ==== */

/* 模糊强度滑块样式 */
.blur-strength {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.blur-strength .settings-option-label {
  min-width: 80px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  flex-shrink: 0;
}

.blur-slider {
  flex: 1;
  height: 6px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.3));
  border-radius: 3px;
  outline: none;
  appearance: none;
  cursor: pointer;
}

.blur-slider::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  background: linear-gradient(45deg, #6c7ce0, #a855f7);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}

.blur-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
}

.blur-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: linear-gradient(45deg, #6c7ce0, #a855f7);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.blur-value {
  min-width: 50px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}

/* ==== 特效系统样式优化 ==== */

.gradient-effects {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 15px;
}

.gradient-effects .settings-option {
  margin-bottom: 12px;
}

.gradient-effects .settings-option:last-child {
  margin-bottom: 0;
}

/* ==== 主题切换动画优化 ==== */

.gradient-background {
  animation-duration: 20s; /* 加长动画时间 */
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .gradient-mini-preview {
    border: 2px solid #fff;
  }

  .gradient-mini-preview.active {
    border-width: 3px;
  }

  .quick-theme-btn {
    border: 2px solid rgba(255, 255, 255, 0.6);
  }
}

/* 减动画模式支持 */
@media (prefers-reduced-motion: reduce) {
  .gradient-background {
    animation: none;
  }

  .gradient-mini-preview::before {
    animation: none;
  }

  .particle {
    animation: none;
  }

  .glow-orb {
    animation: none;
  }
}

/* ==== 背景设置独立面板样式 ==== */

/* 背景设置按钮容器 */
.background-settings-container {
  position: fixed;
  top: 20px;
  right: 80px;
  z-index: 900;
}

/* 背景设置按钮 */
.background-settings-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(15, 26, 77, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.background-settings-btn:hover {
  background-color: rgba(30, 58, 110, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

.background-settings-btn i {
  font-size: 20px;
}

/* 背景设置面板 */
.background-settings-panel {
  position: fixed;
  top: 80px;
  right: 20px;
  width: 380px;
  max-height: 75vh;
  background: rgba(20, 20, 30, 0.95);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 950;
  transform: scale(0.8) translateY(-10px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.background-settings-panel.active {
  transform: scale(1) translateY(0);
  opacity: 1;
  visibility: visible;
}

.background-panel-header {
  padding: 20px 25px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
}

.background-panel-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}

.background-panel-header h3 i {
  margin-right: 10px;
  color: rgba(100, 100, 255, 0.8);
}

.background-panel-content {
  padding: 20px 25px;
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

/* 背景设置分区样式 */
.background-section {
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.background-section:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.background-section-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 15px 0;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.background-section-title i {
  color: rgba(100, 100, 255, 0.8);
  font-size: 14px;
}

/* ==== 设置面板基础样式优化 ==== */

/* 重写原有设置面板的高度限制 */
.settings-menu-panel {
  max-height: 85vh !important; /* 限制最大高度为85%视口高度 */
  overflow-y: auto !important; /* 添加滚动条 */
  padding: 15px 0 !important; /* 调整内边距 */
}

/* 优化滚动条样式 */
.settings-menu-panel::-webkit-scrollbar {
  width: 6px;
}

.settings-menu-panel::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.settings-menu-panel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.settings-menu-panel::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* 原有设置节的样式调整 */
.settings-section {
  padding: 0 15px 15px 15px;
}

.settings-section:first-child {
  padding-top: 0;
}

.settings-section:last-child {
  padding-bottom: 5px;
}

/* 自定义背景容器样式优化 */
.bg-upload-container {
  margin-top: 10px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 背景面板滚动条样式 */
.background-panel-content::-webkit-scrollbar {
  width: 6px;
}

.background-panel-content::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.background-panel-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.background-panel-content::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 移动端适配 */
@media (max-width: 768px) {
  /* 背景设置按钮移动端样式 */
  .background-settings-btn {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .background-settings-btn i {
    font-size: 16px;
  }

  /* 背景设置面板移动端样式 */
  .background-settings-panel {
    top: 70px;
    right: 15px;
    width: calc(100vw - 30px);
    max-width: 350px;
    max-height: 70vh;
  }

  .background-panel-header {
    padding: 15px 20px;
  }

  .background-panel-header h3 {
    font-size: 16px;
  }

  .background-panel-content {
    padding: 15px 20px;
  }

  .background-section-title {
    font-size: 14px;
  }
}