body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
}

header {
  display: flex;
  background-color: #24292e;
  color: white;
  padding: 1rem;
  text-align: center;
  z-index: 10;
  align-items: center;
  width: 100%;
  position: fixed;
}
#toggle-sidebar {
  font-size: 1.5rem;
  background-color: transparent;
  color: white;
  border: none;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  z-index: 100;
}
header h1 {
  font-size: 1.5em;
  margin: auto;
}
header a {
  position: fixed;
  top: 1rem;
  right: 1rem;
}
button {
  padding: 0.1rem 0.2rem;
  font-size: 1rem;
  cursor: pointer;
}

header button {
  margin-top: 0;
}

.sidebar {
  width: 300px;
  padding: 5rem 1rem 1rem;
  background-color: #f3f3f3;
  border-right: 1px solid #ddd;
  transition: transform 0.3s ease-in-out;
  display: flex;
  flex-direction: column;
  position: fixed;  /* Make the sidebar fixed */
  top: 0;           /* Stick it to the top */
  left: 0;          /* Align it to the left */
  height: calc(100dvh - 6rem);     /* Full height */
  z-index: 1;
  justify-content: flex-start;
}

.sidebar section {
  border-bottom: 1px solid #ccc;
  padding: 0.5rem 0;
}
.sidebar-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sidebar.collapsed {
  transform: translateX(-100%);
  overflow: hidden;
}
.error-message {
  color: red;
  font-size: 1rem;
}
.sidebar h2 {
  font-size: 1.25em;
  margin: 0;
  font-weight: normal;
}
input[type="text"] {
  padding: 2px;
  font-size: 1rem;
  width: 100%;
  box-sizing: border-box;
  margin-top: 0.25rem;
}

#drop-zone {
  border: 2px dashed gray;
  padding: 40px;
  text-align: center;
  color: #555;
  margin-top: 10px;
  border-radius: 8px;
  background-color: #fff;
  position: relative;
  z-index: 20;
}
#drop-zone.drag-over {
  border: 2px dashed green;
  background-color: #e6ffec;
  transition: background-color 0.3s ease;
}
#drag-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100dvw;
  height: 100dvh;
  backdrop-filter: blur(4px);
  background-color: rgba(0, 0, 0, 0.2);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
#drag-overlay.active {
  opacity: 1;
}
#file-picker-btn {
  background-color: #2d8cf0;
  color: white;
  border: none;
  border-radius: 3px;
}
#file-picker-btn:hover {
  background-color: #1b6ac9;
}
#paste-md textarea {
  width: 100%;
  height: 5rem;
  font-family: monospace;
  font-size: 0.95rem;
  margin-top: 0.25rem;
  padding: 0.25rem;
  box-sizing: border-box;
  resize: none;
}
#usage-instructions {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  color: #444;
  border: none;
  justify-content: space-between;
}
#usage-instructions ul {
  padding-left: 1.2rem;
  margin-top: 0.5rem;
}
#usage-instructions li {
  list-style-type: disc;
}
#load-readme-btn {
  color: #444;
  margin-top: auto;
  text-align: center;
  cursor: pointer;
  text-decoration: underline;
  padding: 0.5rem 0;
}
#load-readme-btn:hover {
  color: #111;
}

#language-toggle {
  margin-bottom: 0;
  border-top: 1px solid #ccc;
  border-bottom: none;
  color: #333;
  display: flex;
  justify-content: center;
}

#language-toggle label {
  display: inline-block;
  margin-right: 1rem;
  cursor: pointer;
}

/* Markdown rendering area */
.container {
  margin-top: 0;
  margin-right: auto;
  margin-bottom: 0;
  margin-left: 350px;
  max-width: 1200px;
  transition: margin-left 0.3s ease-in-out;
}
main.content {
  padding: 5rem 1rem 1rem;
}
body.sidebar-collapsed .container{
  margin-top: 0;
  margin-right: auto;
  margin-bottom: 0;
  margin-left: auto;
}
.markdown-body {
  box-sizing: border-box;
  min-width: 200px;
  max-width: 1200px;
  margin: 1rem auto;
  padding: 2.5rem;
  background: white;
  border: 1px solid #ddd;
  border-radius: 6px;
}

.tab-container {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid #ccc;
  margin-bottom: 10px;
  padding: 5px 0;
}

.tab-container::-webkit-scrollbar {
  height: 6px;
}

.tab-container::-webkit-scrollbar-thumb {
  background: #999;
  border-radius: 4px;
}

.tab {
  display: flex;
  align-items: center;
  background-color: #eee;
  padding: 6px 10px;
  margin-right: 4px;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.tab.active {
  background-color: #fff;
  border: 1px solid #ccc;
  border-bottom: none;
}

.tab-content-container > article {
  display: none;
}

.tab-content-container > article.active {
  display: block;
}

.tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab-close {
  margin-left: 8px;
  color: #999;
  font-weight: bold;
  cursor: pointer;
}

.tab-close:hover {
  color: red;
}

/* Export buttons*/
#exportButtons {
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
}
#scroll-to-top-btn {
  margin-right: auto;
}

@media print {
  html, body {
    background: white !important;
    color: black !important;
  }
  .container {
    margin-top: 0;
    margin-right: auto;
    margin-bottom: 0;
    margin-left: auto;
    max-width: 1200px;
    transition: margin-left 0.3s ease-in-out;
  }
  main.content {
  padding: 0;
  }
  #rendered-result > h2,
  header,
  #sidebar,
  #tab-container,
  #print-btn,
  #drag-overlay {
    display: none !important;
  }

  .tab-content-container > article {
    display: none;
  }

  .tab-content-container > article.active {
    display: block !important;
  }

  .markdown-body {
    padding: 1rem;
    margin: 0;
    font-size: 14px;
    max-width: 800px;
    color: black;
    background: white;
  }
}

@media (max-width: 768px) {
  header {
    padding: 1rem 0;
  }
  header h1 {
    font-size: 1em;
  }
  #toggle-sidebar {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
  }
  header a {
    position: fixed;
    top: 0.5rem;
    right: 0.5rem;
  }
  .container {
    margin-left: auto;
  }
  #exportButtons {
  flex-direction: column;
  }
  #scroll-to-top-btn {
    margin-right: 0;
  }
}