/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f8f6f0;
  --text: #2a2520;
  --border: #4a453f;
  --accent: #6b6b6b;
  --radius: 10px;
  --gap: 20px;
}

body {
  font-family: Georgia, serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

/* === Editor Layout === */
.editor-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px;
}

header {
  text-align: center;
  margin-bottom: var(--gap);
}

header h1 {
  font-size: 2.2em;
  letter-spacing: 3px;
  margin-bottom: 2px;
}

header .subtitle {
  color: var(--accent);
  font-style: italic;
  font-size: 0.95em;
}

/* === Toolbar === */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 15px;
  padding: 10px 15px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: var(--gap);
  background: var(--bg);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.toolbar-group label {
  font-size: 0.85em;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
}

.toolbar select, .toolbar button {
  font-family: Georgia, serif;
  font-size: 0.9em;
  padding: 4px 10px;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}

.toolbar select:hover, .toolbar button:hover {
  background: var(--border);
  color: var(--bg);
}

.toolbar input[type="range"] {
  width: 90px;
  accent-color: var(--border);
}

#scale-value {
  font-size: 0.85em;
  min-width: 36px;
  color: var(--accent);
}

.toolbar-actions {
  margin-left: auto;
}

#help-btn {
  font-weight: bold;
  width: 32px;
  text-align: center;
}

/* === Workspace === */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.workspace > * {
  min-width: 0;
}

.pane {
  position: relative;
  border: 3px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.pane::before {
  content: attr(data-title);
  position: absolute;
  top: -11px;
  left: 16px;
  background: var(--bg);
  padding: 0 8px;
  font-size: 0.8em;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
}

/* === Input Pane === */
.pane-input {
  display: flex;
}

#markdown-input {
  width: 100%;
  min-height: 600px;
  padding: 20px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95em;
  line-height: 1.5;
  color: var(--text);
  resize: vertical;
  outline: none;
}

#markdown-input::placeholder {
  color: var(--accent);
  font-style: italic;
}

/* === Preview Pane === */
.pane-preview {
  padding: 20px 10px 10px;
  text-align: center;
}

.preview-scaler {
  display: inline-block;
  /* zoom set by JS */
}

#preview-page {
  width: 8.5in;
  height: 11in;
  background: #fff;
  color: #000;
  padding: 0.75in;
  overflow: hidden;
  border: 1px solid #ccc;
  font-family: Georgia, serif;
  font-size: 20px;
  line-height: 1.4;
  text-align: left;
}

#preview-content h1 { font-size: 2em; margin: 0 0 0.4em; text-align: center; }
#preview-content h2 { font-size: 1.5em; margin: 0.6em 0 0.3em; }
#preview-content h3 { font-size: 1.2em; margin: 0.5em 0 0.25em; }
#preview-content h4 { font-size: 1.05em; margin: 0.4em 0 0.2em; }
#preview-content p  { margin: 0 0 0.5em; }
#preview-content ul, #preview-content ol { margin: 0 0 0.5em 1.5em; }
#preview-content li { margin: 0 0 0.2em; }
#preview-content hr { border: none; border-top: 2px solid #000; margin: 0.8em 0; }
#preview-content strong { font-weight: bold; }
#preview-content em { font-style: italic; }
#preview-content code {
  font-family: 'Courier New', Courier, monospace;
  background: #eee;
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 0.9em;
}
#preview-content blockquote {
  border-left: 4px solid #000;
  padding: 0.3em 0.8em;
  margin: 0.5em 0;
  font-style: italic;
}

/* Overflow warning */
#overflow-warning {
  margin-top: 8px;
  padding: 4px 12px;
  font-size: 0.85em;
  font-weight: bold;
  color: #a00;
  border: 2px solid #a00;
  border-radius: 6px;
  text-align: center;
}

.hidden { display: none !important; }

/* === Help Modal === */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-inner {
  background: var(--bg);
  color: var(--text);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  max-width: 560px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.6em;
  cursor: pointer;
  color: var(--text);
  line-height: 1;
}

.modal-inner h2 {
  font-size: 1.4em;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-inner h3 {
  font-size: 1.1em;
  margin: 18px 0 8px;
  color: var(--accent);
  font-style: italic;
}

.modal-inner table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 10px;
}

.modal-inner td {
  padding: 4px 8px;
  border-bottom: 1px solid #ddd;
  vertical-align: top;
  font-size: 0.9em;
}

.modal-inner td:first-child {
  white-space: nowrap;
  font-family: 'Courier New', Courier, monospace;
  width: 50%;
}

.modal-inner ul {
  margin: 0 0 10px 1.5em;
}

.modal-inner li {
  margin-bottom: 4px;
  font-size: 0.9em;
}

.modal-inner p {
  font-size: 0.9em;
  margin-bottom: 8px;
}

.modal-inner code {
  background: #e0ddd6;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
}

/* === Print Styles === */
@media print {
  body {
    background: #fff;
    margin: 0;
    padding: 0;
  }

  /* Hide everything except the page itself */
  body, html {
    width: 8.5in;
    height: 11in;
    overflow: hidden;
  }

  header, .toolbar, .pane-input, #overflow-warning, .modal,
  .pane::before, .pane-preview::before { display: none !important; }

  .editor-wrap, .workspace, .pane-preview, .preview-scaler {
    display: block;
    margin: 0;
    padding: 0;
    border: none;
    width: auto;
    height: auto;
    overflow: visible;
    text-align: left;
  }

  .preview-scaler {
    zoom: 1 !important;
  }

  #preview-page {
    width: 8.5in;
    height: 11in;
    border: none;
    margin: 0;
    overflow: hidden;
    /* padding inherited from inline style set by margin slider */
  }

  @page {
    size: letter;
    margin: 0;
  }
}

/* === Responsive === */
@media (max-width: 768px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  header h1 { font-size: 1.8em; }

  #markdown-input { min-height: 300px; }

  .toolbar {
    gap: 10px;
  }

  .toolbar-actions {
    margin-left: 0;
  }
}