/* 基础样式 */
:root {
  --primary-color: #00f3ff;
  --secondary-color: #ff00a0;
  --bg-color: #0a0a12;
  --panel-bg: rgba(20, 20, 35, 0.9);
  --text-color: #e0e0e0;
  --accent-color: #ff9500;
  --error-color: #ff3860;
  --success-color: #23d160;
  --shadow-color: rgba(0, 0, 0, 0.5);
  --transition-speed: 0.3s;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent; /* 移除移动端点击高亮 */
}

body {
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  padding: 15px;
  overflow-x: hidden;
  background-image:
    linear-gradient(to right, rgba(0, 243, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 243, 255, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 30px;
}

/* 标题样式 */
.title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 10px;
  color: var(--primary-color);
  text-shadow:
    0 0 5px var(--primary-color),
    0 0 10px rgba(0, 243, 255, 0.5);
  letter-spacing: 1px;
}

.subtitle {
  text-align: center;
  margin-bottom: 25px;
  color: var(--text-color);
  opacity: 0.8;
}

/* 返回链接 */
.back-link {
  position: fixed;
  top: 15px;
  left: 15px;
  z-index: 100;
  background: rgba(0, 0, 0, 0.6);
  color: var(--text-color);
  padding: 10px 15px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(0, 243, 255, 0.3);
  transition: all var(--transition-speed) ease;
  display: flex;
  align-items: center;
  gap: 5px;
}

.back-link:hover, .back-link:active {
  background: rgba(0, 243, 255, 0.2);
  border-color: var(--primary-color);
}

/* 加载指示器 */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 18, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(0, 243, 255, 0.3);
  border-radius: 50%;
  border-top: 4px solid var(--primary-color);
  animation: spin 1s linear infinite;
}

.loading-text {
  margin-top: 15px;
  color: var(--primary-color);
  font-size: 1.1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 上传区域 */
.upload-area {
  width: 100%;
  max-width: 500px;
  height: 220px;
  margin: 0 auto 30px;
  border: 2px dashed rgba(0, 243, 255, 0.5);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  background: rgba(0, 243, 255, 0.05);
  padding: 20px;
}

.upload-area:hover, .upload-area.drag-over {
  border-color: var(--primary-color);
  background: rgba(0, 243, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 243, 255, 0.2);
}

.upload-area:active {
  transform: translateY(0);
}

.upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  text-align: center;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.upload-text {
  color: var(--text-color);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.upload-hint {
  color: var(--text-color);
  opacity: 0.7;
  font-size: 0.8rem;
}

/* 预览容器 */
.preview-container {
  width: 100%;
  margin: 0 auto;
  position: relative;
}

.canvas-container {
  width: 100%;
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

#glitchCanvas {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease;
}

.canvas-controls {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 10px;
}

.icon-btn {
  background: rgba(0, 0, 0, 0.6);
  color: var(--text-color);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(0, 243, 255, 0.3);
}

.icon-btn:hover {
  background: rgba(0, 243, 255, 0.2);
  transform: scale(1.1);
}

/* 移动端控制面板切换按钮 */
.toggle-controls-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 90;
  background: var(--primary-color);
  color: var(--bg-color);
  border: none;
  border-radius: 50px;
  padding: 12px 20px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
}

.toggle-controls-btn i {
  font-size: 1.2rem;
}

/* 控制面板 */
.controls-panel {
  background: var(--panel-bg);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 30px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 243, 255, 0.2);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.controls-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.controls-header h3 {
  color: var(--primary-color);
  margin: 0;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-color);
  font-size: 1.2rem;
  cursor: pointer;
  display: none;
}

/* 预设效果按钮 */
.presets-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  justify-content: center;
}

.preset-btn {
  padding: 8px 15px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 243, 255, 0.3);
  border-radius: 20px;
  color: var(--text-color);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.preset-btn:hover, .preset-btn.active {
  background: rgba(0, 243, 255, 0.2);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.control-group {
  margin-bottom: 20px;
}

.control-group label {
  display: block;
  width: 100%;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.slider {
  flex: 1;
  height: 8px;
  -webkit-appearance: none;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  outline: none;
  border-radius: 5px;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text-color);
  cursor: pointer;
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 5px var(--primary-color);
}

.slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text-color);
  cursor: pointer;
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 5px var(--primary-color);
}

.value-display {
  width: 50px;
  text-align: right;
  font-size: 0.9rem;
  font-weight: bold;
}

/* 质量控制 */
.quality-control {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  gap: 10px;
}

.quality-control label {
  font-size: 0.95rem;
}

.quality-select {
  flex: 1;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 243, 255, 0.3);
  border-radius: 4px;
  color: var(--text-color);
  outline: none;
  cursor: pointer;
}

.quality-select:focus {
  border-color: var(--primary-color);
}

/* 按钮样式 */
.buttons-row {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  padding: 12px 15px;
  border: none;
  border-radius: 6px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  color: #000;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 100px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.7);
}

.btn:active {
  transform: translateY(0);
}

/* 全屏预览模态框 */
.fullscreen-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  overflow: auto;
}

.modal-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.close-modal {
  position: absolute;
  top: 20px;
  right: 30px;
  color: var(--text-color);
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
}

.fullscreen-canvas-container {
  width: 90%;
  height: 90%;
  display: flex;
  justify-content: center;
  align-items: center;
}

#fullscreenCanvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* 响应式设计 */
@media (min-width: 768px) {
  .preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }

  .canvas-container {
    width: 60%;
    margin-bottom: 0;
  }

  .controls-panel {
    width: calc(40% - 20px);
    margin-top: 0;
    align-self: flex-start;
    position: sticky;
    top: 20px;
  }

  .toggle-controls-btn, .close-btn {
    display: none !important;
  }
}

@media (max-width: 767px) {
  body {
    padding: 10px;
  }

  .container {
    padding-top: 20px;
  }

  .title {
    font-size: 1.8rem;
  }

  .subtitle {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .upload-area {
    height: 180px;
  }

  .upload-icon {
    font-size: 2.5rem;
  }

  .upload-text {
    font-size: 1rem;
  }

  .toggle-controls-btn {
    display: flex;
  }

  .controls-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    border-radius: 15px 15px 0 0;
    z-index: 100;
    transform: translateY(100%);
    opacity: 0;
  }

  .controls-panel.active {
    transform: translateY(0);
    opacity: 1;
  }

  .close-btn {
    display: block;
  }

  .control-group {
    margin-bottom: 15px;
  }

  .slider {
    height: 10px; /* 移动端更粗的滑块 */
  }

  .slider::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
  }

  .slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
  }

  .buttons-row {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
  }

  /* 移动端优化的预设按钮 */
  .presets-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .preset-btn {
    width: 100%;
    text-align: center;
    padding: 10px;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .btn:hover, .icon-btn:hover, .preset-btn:hover {
    transform: none;
    box-shadow: none;
  }

  .upload-area:hover {
    transform: none;
    box-shadow: none;
  }
}