/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

:root {
  --primary-color: #0071e3;
  --secondary-color: #f5f5f7;
  --text-color: #1d1d1f;
  --light-text: #86868b;
  --border-color: #d2d2d7;
  --success-color: #34c759;
  --warning-color: #ff9500;
  --error-color: #ff3b30;
  --card-bg: #ffffff;
  --gradient-start: #f5f5f7;
  --gradient-end: #ffffff;
  --transition-speed: 0.3s;
}

/* 暗黑模式变量 */
body.dark-mode {
  --primary-color: #0a84ff;
  --secondary-color: #1c1c1e;
  --text-color: #f5f5f7;
  --light-text: #8e8e93;
  --border-color: #38383a;
  --card-bg: #2c2c2e;
  --gradient-start: #1c1c1e;
  --gradient-end: #2c2c2e;
}

body {
  background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
  min-height: 100vh;
  color: var(--text-color);
  padding: 20px;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: var(--card-bg);
  color: var(--text-color);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-speed) ease;
}

.theme-toggle:hover {
  background-color: var(--secondary-color);
}

/* 确保所有需要过渡的元素都有过渡效果 */
body,
.settings-container,
.translation-box,
.api-key-section input,
select,
textarea,
button {
  transition: all var(--transition-speed) ease;
}

body {
  background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
  min-height: 100vh;
  color: var(--text-color);
  padding: 20px;
  transition: all var(--transition-speed) ease;
}

/* 头部样式 */
header {
  text-align: center;
  padding: 20px 0;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* 设置区域样式 */
.settings-container {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 30px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.model-selection {
  margin-top: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.custom-model-container {
  margin-top: 10px;
  width: 100%;
}

#customModelInput {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  background-color: var(--secondary-color);
  color: var(--text-color);
  transition: all 0.3s ease;
}

#customModelInput:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.model-selection label {
  color: var(--light-text);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--primary-color);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 0.8;
}

.footer-links span {
  color: var(--light-text);
}

.api-key-section {
  display: flex;
  gap: 10px;
}

#apiKey {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  background-color: var(--secondary-color);
  transition: all 0.3s ease;
}

#apiKey:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

#saveApiKey {
  padding: 12px 24px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#saveApiKey:hover {
  background-color: #0066cc;
}

#saveApiKey:active {
  background-color: #0052a3;
}

/* 翻译区域样式 */
.translation-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%; /* 确保容器宽度为100% */
}

.translation-box {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%; /* 移动设备上宽度为100% */
}

.language-selector {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

select {
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--secondary-color);
  color: var(--text-color);
  font-size: 1rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
  cursor: pointer;
  transition: all 0.3s ease;
}

select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

#swapLanguages {
  background-color: transparent;
  border: none;
  color: var(--primary-color);
  font-size: 1.2rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

#swapLanguages:hover {
  background-color: rgba(0, 113, 227, 0.1);
}

textarea {
  flex: 1;
  min-height: 300px;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  resize: vertical;
  background-color: var(--secondary-color);
  transition: all 0.3s ease;
}

textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.translation-box div:last-child {
  display: flex;
  justify-content: flex-end;
}

#clearSource, #copyResult {
  background-color: transparent;
  border: none;
  color: var(--light-text);
  font-size: 1rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

#clearSource:hover, #copyResult:hover {
  background-color: rgba(134, 134, 139, 0.1);
  color: var(--primary-color);
}

/* 修复翻译按钮的类名语法错误 */
.translate-button {
  align-self: center;
  padding: 12px 32px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px; /* 改为小圆角，使其更像长方形 */
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.translate-button:hover {
  background-color: #0066cc;
  transform: translateY(-2px);
}

.translate-button:active {
  background-color: #0052a3;
  transform: translateY(0);
}

.translate-button i {
  font-size: 1.2rem;
}

/* 页脚样式 */
footer {
  text-align: center;
  padding: 30px 0;
  color: var(--light-text);
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (min-width: 768px) {
  .translation-container {
    flex-direction: row;
    align-items: center;
  }

  .translation-box {
    flex: 2; /* 桌面设备上宽度增加一倍 */
    max-width: calc(50% - 10px); /* 确保不会超出容器 */
  }

  .translate-button {
    rotate: 0; /* 取消旋转 */
    height: auto; /* 恢复默认高度 */
    width: auto; /* 恢复默认宽度 */
    border-radius: 8px; /* 保持小圆角 */
    padding: 12px 24px; /* 恢复padding */
  }
}

/* 提示消息样式 */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 24px;
  border-radius: 8px;
  color: white;
  font-size: 1rem;
  font-weight: 500;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background-color: var(--success-color);
}

.toast.warning {
  background-color: var(--warning-color);
}

.toast.error {
  background-color: var(--error-color);
}