/* style.css */
:root {
  --bg-color: #ffffff;
  --text-color: #1d1d1f;
  --secondary-bg-color: #f5f5f7;
  --border-color: #d2d2d7;
  --link-color: #007aff;
  --button-bg-color: #007aff;
  --button-text-color: #ffffff;
}

body {
  font-family: "Helvetica Neue", Luxi Sans, "DejaVu Sans", "Hiragino Sans GB", "Microsoft Yahei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  line-height: 1.6;
  background-color: var(--secondary-bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  background-color: var(--bg-color);
}

.header {
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 20px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.toggle-btn {
  padding: 6px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  background-color: var(--button-bg-color);
  color: var(--button-text-color);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
}

.toggle-btn:hover {
  filter: brightness(1.1);
}
.toggle-btn:active {
    transform: scale(0.96);
}

/* Button Group Styles */
.button-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Clear Button Styles */
.clear-btn {
  padding: 6px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  background-color: #ff3b30;
  color: var(--button-text-color);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clear-btn:hover {
  filter: brightness(1.1);
}

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

.clear-btn svg {
  color: white;
}

/* Download Button Styles */
.download-dropdown {
  position: relative;
  display: inline-block;
}

.download-btn {
  padding: 6px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  background-color: #34c759;
  color: var(--button-text-color);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
}

.download-btn:hover {
  filter: brightness(1.1);
}

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

/* Download Menu Styles */
.download-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease-in-out;
  z-index: 1000;
  margin-top: 8px;
}

.download-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.download-option {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9rem;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s;
  color: var(--text-color);
}

.download-option:hover {
  background-color: var(--secondary-bg-color);
}

.download-option:first-child {
  border-radius: 8px 8px 0 0;
}

.download-option:last-child {
  border-radius: 0 0 8px 8px;
}

.main-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px;
  width: 100%;
  box-sizing: border-box;
}

.editor-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.editor, .preview {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  background-color: transparent;
}

.editor {
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  resize: none;
  font-family: "mononoki", Consolas, "Liberation Mono", Menlo, Courier, monospace, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  font-size: 15px;
  line-height: 1.6;
  padding: 20px;
  height: calc(100vh - 100px);
  width: 100%;
  box-sizing: border-box;
}

.editor:focus {
  outline: 2px solid var(--link-color);
  border-color: transparent;
}

.hide {
  display: none;
}

/* Markdown Content Styling */
.preview h1, .preview h2, .preview h3, .preview h4 {
  padding-bottom: 0.3em;
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
}
.preview h1 { border-bottom: 1px solid var(--border-color); font-size: 2em; }
.preview h2 { border-bottom: 1px solid var(--border-color); font-size: 1.5em; }
.preview h3 { font-size: 1.25em; }
.preview h4 { font-size: 1em; }


.preview a { color: var(--link-color); text-decoration: none; }
.preview a:hover { text-decoration: underline; }
.preview ul, .preview ol { padding-left: 2em; }
.preview blockquote {
  padding: 10px 1em;
  color: #6a737d;
  border-left: 0.25em solid #dfe2e5;
  margin-left: 0;
  background-color: var(--secondary-bg-color);
  border-radius: 6px;
}

.preview table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  display: block;
  overflow-x: auto;
}
.preview th, .preview td { border: 1px solid var(--border-color); padding: 8px 12px; }
.preview th { background-color: var(--secondary-bg-color); font-weight: 600; }
.preview tr:nth-child(2n) { background-color: var(--secondary-bg-color); }

.preview pre {
  background-color: var(--secondary-bg-color);
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  line-height: 1.45;
}
.preview code { font-family: "mononoki", Consolas, "Liberation Mono", Menlo, Courier, monospace, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols"; }
.preview :not(pre) > code {
  background-color: rgba(27,31,35,0.05);
  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  border-radius: 3px;
}

.mermaid, .echarts-container {
  background: var(--bg-color);
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    padding: 0 15px;
  }

  .editor-container {
    padding: 0 15px;
  }

  .editor {
    padding: 15px;
    font-size: 14px;
    height: calc(100vh - 140px);
  }

  .button-group {
    gap: 8px;
  }

  .toggle-btn, .download-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .title {
    font-size: 1.1rem;
  }
}

@media (min-width: 769px) and (max-width: 1200px) {
  .header-content,
  .editor-container {
    max-width: 90%;
    padding: 0 20px;
  }

  .editor {
    height: calc(100vh - 150px);
  }
}

@media (min-width: 1201px) and (max-width: 1600px) {
  .header-content,
  .editor-container {
    max-width: 1200px;
  }

  .editor {
    height: calc(100vh - 160px);
  }
}

@media (min-width: 1601px) {
  .header-content,
  .editor-container {
    max-width: 1400px;
  }

  .editor {
    height: calc(100vh - 160px);
  }
}