:root {
  --bg-color: #f8fafc;
  --surface-color: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;

  /* Confluence specific colors */
  --c-heading: #172b4d;
  --c-text: #172b4d;
  --c-link: #0052cc;
  --c-table-header-bg: #f4f5f7;
  --c-table-border: #dfe1e6;
  --c-code-bg: #f4f5f7;
  --c-info-bg: #e3fcef;
  --c-info-border: #006644;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
.app-header {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.actions {
    display: flex;
    gap: 0.75rem;
}
.logo h1 {
  font-size: 1.25rem;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow:
    0 4px 6px -1px rgba(79, 70, 229, 0.1),
    0 2px 4px -1px rgba(79, 70, 229, 0.06);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #f1f5f9;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-icon:hover {
    background-color: #e2e8f0;
    color: var(--text-primary);
}

/* Main Container */
.main-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0; /* Prevent flex items from overflowing */
}

.editor-pane {
  border-right: 1px solid var(--border-color);
  background-color: #fafafa;
}

.preview-pane {
  background-color: white;
}

.pane-header {
    padding: 0.75rem 1.5rem;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pane-actions {
    display: flex;
    gap: 0.5rem;
}

.pane-header h2 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Editor */
#markdown-input {
  flex: 1;
  width: 100%;
  padding: 1.5rem;
  border: none;
  resize: none;
  outline: none;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9375rem;
  line-height: 1.6;
  background-color: transparent;
  color: var(--text-primary);
}

/* Preview (Confluence Styles) */
#preview-output {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  font-size: 16px; /* Confluence default */
  line-height: 1.56;
}

.confluence-content {
  color: var(--c-text);
}

.confluence-content h1,
.confluence-content h2,
.confluence-content h3,
.confluence-content h4,
.confluence-content h5,
.confluence-content h6 {
  color: var(--c-heading);
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.25;
}

.confluence-content h1 {
  font-size: 2em;
}
.confluence-content h2 {
  font-size: 1.5em;
  border-bottom: 1px solid var(--c-table-border);
  padding-bottom: 0.3em;
}
.confluence-content h3 {
  font-size: 1.25em;
}

.confluence-content p {
  margin-bottom: 1em;
}

.confluence-content a {
  color: var(--c-link);
  text-decoration: none;
}

.confluence-content a:hover {
  text-decoration: underline;
}

/* Table Styles - Confluence Style */
.confluence-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5rem 0;
  border: 1px solid var(--c-table-border);
}

.confluence-content th,
.confluence-content td {
  padding: 8px 12px;
  border: 1px solid var(--c-table-border);
  text-align: left;
  vertical-align: top;
}

.confluence-content th {
  background-color: var(--c-table-header-bg);
  font-weight: 600;
  color: var(--c-text);
}

.confluence-content tr:nth-child(even) {
  /* Optional: Confluence often doesn't force stripes, but legibility helps */
  background-color: #fafbfc;
}

.confluence-content tr:hover {
  background-color: #f4f5f7;
}

/* Code Blocks */
.confluence-content pre {
  background-color: var(--c-code-bg);
  border-radius: 4px;
  padding: 1rem;
  margin: 1rem 0;
  overflow-x: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9em;
}

.confluence-content code {
  background-color: rgba(9, 30, 66, 0.08); /* Confluence inline code bg */
  padding: 0.125rem 0.25rem;
  border-radius: 3px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9em;
}

.confluence-content pre code {
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

/* Blockquotes / Info Panels */
.confluence-content blockquote {
  background-color: var(--c-info-bg); /* Info macro style */
  border-left: 4px solid #0052cc; /* Blue stripe */
  padding: 1rem;
  margin: 1rem 0;
  color: var(--c-text);
}

.confluence-content blockquote p:last-child {
  margin-bottom: 0;
}

.confluence-content ul,
.confluence-content ol {
  margin-left: 1.5rem;
  margin-bottom: 1em;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: #1e293b;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 500;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #94a3b8;
}