@import "@fontsource-variable/inter";
@import "@fontsource-variable/jetbrains-mono";
@import "tailwindcss";
@plugin "daisyui";
@plugin "@tailwindcss/typography";

@plugin "daisyui/theme" {
  name: "vesper";
  default: true;
  prefersdark: true;
  
  color-scheme: dark;
  
  --color-base-100: #2D323B;
  --color-base-200: #282C33;
  --color-base-300: #1E2128;
  --color-base-content: #E4E6EB;
  
  --color-primary: #6B8AFF;
  --color-primary-content: #1E2128;
  
  --color-secondary: #9F7AEA;
  --color-secondary-content: #1E2128;
  
  --color-accent: #38BDF8;
  --color-accent-content: #1E2128;
  
  --color-neutral: #3D4350;
  --color-neutral-content: #E4E6EB;
  
  --color-info: #6B8AFF;
  --color-info-content: #1E2128;
  
  --color-success: #4ADE80;
  --color-success-content: #1E2128;
  
  --color-warning: #FBBF24;
  --color-warning-content: #1E2128;
  
  --color-error: #F87171;
  --color-error-content: #1E2128;
}

/* Custom properties */
:root {
  /* Surface System - centered on #282C33 */
  --color-bg-base: #282C33;
  --color-bg-surface: #252A31;
  --color-bg-elevated: #2D333C;
  --color-bg-overlay: #333942;
  
  --color-bg-hover: #363D48;
  --color-bg-active: #404754;
  
  /* Text hierarchy */
  --color-text-primary: #E4E6EB;
  --color-text-secondary: #BCC1C8;   /* was #ABB0B8, now ~7.5:1 */
  --color-text-tertiary: #8B919A;    /* was #6B7280, now ~4.8:1 */
  --color-text-disabled: #6B7280;    /* was #4A5260, now ~2.9:1 (exempt - inactive UI) */
  
  /* Accent */
  --color-accent: #6B8AFF;
  --color-accent-hover: #8BA3FF;
  --color-accent-small: #8BA3FF;     /* for small text (11px) accent uses */
  --color-accent-muted: rgba(107, 138, 255, 0.12);
  --color-accent-subtle: rgba(107, 138, 255, 0.06);

  /* Markdown typography */
  --color-md-h1: #F5F6F7;
  --color-md-h2: #EDEEF0;
  --color-md-h3: #E4E5E8;
  --color-md-h4: #D8DADE;
  --color-md-h5: #CBCED3;
  --color-md-h6: #BCC1C8;
  --color-md-heading: #F0F1F3;
  --color-md-paragraph: #C8CCD0;
  --color-md-link: #93B8F9;
  --color-md-link-underline: rgba(147, 184, 249, 0.3);
  --color-md-link-hover: #A8C6FA;
  --color-md-link-hover-underline: rgba(168, 198, 250, 0.7);
  --color-md-marker: #93B8F9;
  --color-md-blockquote-border: #93B8F9;
  --color-md-blockquote-bg: rgba(147, 184, 249, 0.04);
  --color-md-blockquote-text: #BFC3C8;
  --color-md-code-inline: #E8B89E;
  --color-md-code-inline-bg: rgba(255, 255, 255, 0.06);
  --color-md-code-block-bg: #1A1D24;
  --color-md-code-block-border: rgba(255, 255, 255, 0.06);
  --color-md-code-text: #E4E6EB;
  --color-md-table-header-bg: rgba(124, 169, 247, 0.08);
  --color-md-table-border: rgba(255, 255, 255, 0.06);
  --color-md-table-cell: #C8CCD0;
  --color-md-table-stripe: rgba(30, 33, 40, 0.4);
  --color-md-table-hover: rgba(124, 169, 247, 0.05);
  --color-md-hr: rgba(255, 255, 255, 0.1);
  --color-md-mark-bg: rgba(251, 191, 36, 0.2);
  --color-md-mark-text: #FBBF24;
  --color-md-comment: #7C8390;
  --color-md-highlight-bg: rgba(251, 191, 36, 0.3);
  --color-md-highlight-active-bg: rgba(251, 191, 36, 0.6);
  --color-md-highlight-active-outline: rgba(251, 191, 36, 0.7);
  --color-md-welcome-btn: #4A6AE5;

  /* Borders */
  --color-border-subtle: rgba(255, 255, 255, 0.04);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.12);
  
  /* Typography */
  font-family: 'Inter Variable', 'Inter', -apple-system, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  
  /* Spacing */
  --space-xs: 3px;
  --space-sm: 6px;
  --space-md: 12px;
  --space-lg: 20px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  
  /* Shadows */
  --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-dropdown: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-modal: 0 20px 60px rgba(0, 0, 0, 0.6);
  
  /* Transitions */
  --transition-fast: 100ms ease;
  --transition-normal: 150ms ease;
  --transition-smooth: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body, #root {
  height: 100%;
  width: 100%;
  overflow: visible;
}

/* Skip link - WCAG 2.4.1 */
.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 99999;
  padding: 8px 16px;
  background-color: var(--color-accent);
  color: white;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 8px;
}

/* App container */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  background-color: var(--color-bg-base);
  position: relative;
  overflow: visible;
}

/* Subtle noise overlay */
.app-container::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.018;
  pointer-events: none;
  z-index: 9998;
  mix-blend-mode: overlay;
}

/* Title bar */
.title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
  background-color: var(--color-bg-surface);
  padding: 0;
  user-select: none;
  border-bottom: 1px solid var(--color-border-subtle);
}

.title-bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 12px;
}

.title-bar-drag {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-app-region: drag;
  cursor: default;
}

.title-bar-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: 0.02em;
  text-align: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.title-bar-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: 0.02em;
  text-align: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.title-bar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  z-index: 1;
}

.title-bar-controls {
  display: flex;
  -webkit-app-region: no-drag;
  pointer-events: auto;
}

.title-bar-button {
  width: 46px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.title-bar-button:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.title-bar-button.close:hover {
  background-color: #DC2626;
  color: white;
}

/* Menu bar */
.menu-bar {
  display: flex;
  align-items: center;
  height: 28px;
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 0 12px;
  gap: 2px;
  overflow: hidden;
}

.menu-item {
  position: relative;
  padding: 4px 10px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.menu-item:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

/* Menu backdrop - invisible overlay to catch outside clicks */
.menu-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
}

/* Menu dropdown */
.menu-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 200px;
  background-color: var(--color-bg-overlay);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4px;
  box-shadow: var(--shadow-dropdown);
  z-index: 100;
}

.menu-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 450;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
  gap: 12px;
}

.menu-dropdown-item:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.menu-shortcut {
  color: var(--color-text-disabled);
  font-size: 11px;
  font-weight: 500;
  margin-left: auto;
  font-family: 'SF Mono', 'Menlo', monospace;
}

.menu-separator {
  height: 1px;
  background-color: var(--color-border-subtle);
  margin: 4px 6px;
}

.menu-check {
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 700;
}

/* Zoom spinner in View menu */
.menu-dropdown-zoom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  color: var(--color-text-secondary);
  font-size: 12px;
  cursor: default;
}

.zoom-spinner {
  display: flex;
  align-items: center;
  gap: 2px;
}

.zoom-spinner-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.zoom-spinner-btn:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
  border-color: var(--color-text-disabled);
}

.zoom-spinner-value {
  min-width: 38px;
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  font-family: 'SF Mono', 'Menlo', monospace;
  color: var(--color-text-primary);
}

/* Tab bar */
.tab-bar {
  display: flex;
  align-items: center;
  height: 38px;
  background-color: var(--color-bg-base);
  border-bottom: 1px solid var(--color-border-subtle);
  overflow: hidden;
}

.tab-scroll-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.tab-scroll-arrow.visible {
  opacity: 0.6;
  pointer-events: auto;
  visibility: visible;
}

.tab-scroll-arrow.visible:hover,
.tab-scroll-arrow.visible:focus-visible {
  opacity: 1;
  color: var(--color-text-primary);
  background-color: var(--color-bg-hover);
}

.tab-scroll-container {
  display: flex;
  align-items: center;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  gap: 2px;
  padding: 0 4px;
  flex: 1;
  min-width: 0;
  scrollbar-width: none;
}

.tab-scroll-container::-webkit-scrollbar {
  display: none;
}

.tab {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.tab:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.tab.active {
  background-color: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border-bottom: 2px solid var(--color-accent);
}

.tab-title {
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12px;
  font-weight: 500;
}

.tab-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  opacity: 0.5;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.tab:hover .tab-close,
.tab-close:focus-visible {
  opacity: 1;
}

.tab-close:hover {
  background-color: rgba(239, 68, 68, 0.15);
  color: #F87171;
}

/* Main content */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: 100%;
  align-items: stretch;
}

.main-content:has(.sidebar-scroll-wrapper) {
  gap: 0;
}

.content-column {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  height: 100%;
  margin: 0;
  padding: 0;
}

/* Sidebar wrapper */
.sidebar-scroll-wrapper {
  position: relative;
  overflow: hidden;
  height: 100%;
  background-color: var(--color-bg-surface);
  border-right: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
}

/* Sidebar */
.sidebar {
  flex: 1;
  min-height: 0;
  width: 100%;
  padding-bottom: 20px;
}

.sidebar-resize-handle {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: rgba(255, 255, 255, 0.06);
  cursor: col-resize;
  transition: background-color var(--transition-fast);
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle:focus-visible {
  background-color: var(--color-accent);
}

.sidebar-heading {
  padding: 16px 18px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: sticky;
  top: 0;
  background-color: var(--color-bg-surface);
  z-index: 1;
}

.sidebar-empty {
  padding: 12px 18px;
  font-size: 12px;
  color: var(--color-text-disabled);
  font-style: italic;
}

.sidebar-item {
  display: block;
  width: 100%;
  padding: 8px 18px;
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  color: var(--color-text-secondary);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 12px;
  font-weight: 450;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-item:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.sidebar-item.active {
  border-left-color: var(--color-accent);
  background-color: var(--color-accent-muted);
  color: var(--color-text-primary);
}

.sidebar-item.h1 { padding-left: 18px; font-weight: 600; }
.sidebar-item.h2 { padding-left: 18px; }
.sidebar-item.h3 { padding-left: 28px; font-size: 11px; }
.sidebar-item.h4 { padding-left: 38px; font-size: 11px; }
.sidebar-item.h5 { padding-left: 48px; font-size: 11px; }
.sidebar-item.h6 { padding-left: 58px; font-size: 11px; }

/* Content area */
.content-area-scroll-wrapper {
  flex: 1;
  overflow: hidden;
  height: 100%;
  position: relative;
  background-color: var(--color-bg-base);
}

.content-area-scroll {
  min-height: 100%;
  padding: 48px 64px;
  box-sizing: border-box;
}

/* Search bar */
.search-bar {
  display: flex;
  align-items: center;
  padding: 0 16px;
  height: 44px;
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border-subtle);
  gap: 12px;
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  height: 30px;
  padding: 0 12px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 13px;
  font-weight: 450;
  outline: none;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-input:focus-visible {
  border-color: var(--color-accent);
  background-color: var(--color-bg-base);
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.search-results {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-tertiary);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  padding: 0 10px;
  height: 24px;
  background-color: var(--color-bg-surface);
  border-radius: var(--radius-sm);
}

.search-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-nav-btn:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

/* Drop zone */
.drop-zone {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(20, 22, 28, 0.88);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 48px 72px;
  border: 2px dashed rgba(107, 138, 255, 0.5);
  border-radius: 16px;
  background-color: rgba(107, 138, 255, 0.06);
  box-shadow: 0 0 0 1px rgba(107, 138, 255, 0.1), 0 24px 64px rgba(0, 0, 0, 0.4);
}

.drop-zone-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(107, 138, 255, 0.1);
  color: var(--color-accent);
  margin-bottom: 4px;
}

.drop-zone-text {
  font-size: 16px;
  color: var(--color-text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.drop-zone-hint {
  font-size: 12px;
  color: var(--color-text-tertiary);
  font-weight: 450;
}

/* Focus mode - animated via framer-motion, extra padding for content */
.focus-mode .content-area-scroll {
  padding: 64px 96px;
}

/* Welcome screen */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--color-text-secondary);
  text-align: center;
  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.welcome-icon {
  font-size: 64px;
  margin-bottom: 24px;
  opacity: 0.35;
}

.welcome-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.035em;
}

.welcome-subtitle {
  font-size: 15px;
  margin-bottom: 28px;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.welcome-button {
  padding: 12px 28px;
  background-color: var(--color-md-welcome-btn);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.welcome-button:hover {
  background-color: var(--color-accent-hover);
}

.welcome-hint {
  font-size: 12px;
  color: var(--color-text-disabled);
}

/* Context Menu */
.context-menu {
  position: fixed !important;
  min-width: 180px;
  background-color: var(--color-bg-overlay);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4px;
  box-shadow: var(--shadow-dropdown);
  z-index: 10001 !important;
}

.context-menu-item {
  display: block;
  width: 100%;
  padding: 8px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 450;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.context-menu-item:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.context-menu-separator {
  height: 1px;
  background-color: var(--color-border-subtle);
  margin: 4px 6px;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  z-index: 10002 !important;
}

.modal {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  min-width: 360px;
  max-width: 480px;
  width: 90vw;
  display: block;
  visibility: visible;
  opacity: 1;
  height: auto;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  z-index: 10003 !important;
}

/* Shortcuts dialog - uses its own class to avoid DaisyUI .modal conflicts */
.shortcuts-dialog {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 640px;
  max-width: 92vw;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  z-index: 10003;
}

.shortcuts-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.shortcuts-dialog-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.shortcuts-dialog-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.shortcuts-dialog-close:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.shortcuts-dialog-body {
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
}

.shortcuts-dialog-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent-small);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.shortcuts-dialog-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
  gap: 16px;
}

.shortcuts-dialog-item kbd {
  font-family: 'JetBrains Mono Variable', 'SF Mono', 'Menlo', monospace;
  font-size: 11px;
  padding: 4px 10px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.shortcuts-dialog-nav-grid {
  grid-column: 1 / -1;
}

.shortcuts-dialog-nav-grid .shortcuts-dialog-items-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 32px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  font-size: 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.modal-content {
  padding: 20px;
}

.about-modal {
  text-align: center;
}

.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.about-icon {
  font-size: 48px;
  margin-bottom: 8px;
}

.about-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.about-version {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.about-description {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.about-copyright {
  font-size: 11px;
  color: var(--color-text-disabled);
  margin-top: 16px;
}

/* Shortcuts Modal */
.shortcut-group {
  margin-bottom: 16px;
}

.shortcut-group:last-child {
  margin-bottom: 0;
}

.shortcut-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.shortcut {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.shortcut kbd {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 11px;
  padding: 3px 8px;
  background-color: var(--color-bg-surface);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.shortcut-key {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 11px;
  padding: 3px 8px;
  background-color: var(--color-bg-surface);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
}

/* Markdown content */
.markdown-content {
  /* Optimal measure: ~65 characters for best readability */
  max-width: 680px;
  margin: 0 auto;
  color: var(--color-text-primary);
  
  /* Typography settings */
  font-size: 17px;
  line-height: 1.7;
  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-feature-settings: "liga" 1, "kern" 1, "calt" 1;
  font-variant-ligatures: common-ligatures;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-spacing-trim: trim-both;
}

/* Heading hierarchy */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  color: var(--color-md-heading);
  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-top: 2.2em;
  margin-bottom: 0.55em;
  font-feature-settings: "liga" 1, "kern" 1;
}

.markdown-content h1 {
  font-size: 2.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-md-h1);
  margin-top: 0;
  margin-bottom: 0.8em;
  padding-bottom: 0.55em;
  border-bottom: 1px solid var(--color-border);
}

.markdown-content h2 {
  font-size: 1.7rem;
  color: var(--color-md-h2);
  margin-top: 1.85em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--color-border-subtle);
}

.markdown-content h3 {
  font-size: 1.3rem;
  color: var(--color-md-h3);
}

.markdown-content h4 {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-md-h4);
}

.markdown-content h5 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-md-h5);
}

.markdown-content h6 {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-md-h6);
}

/* Paragraphs */
.markdown-content p {
  margin-bottom: 1.65em;
  color: var(--color-md-paragraph);
  line-height: 1.7;
}

/* Links */
.markdown-content a {
  color: var(--color-md-link);
  text-decoration: underline;
  text-decoration-color: var(--color-md-link-underline);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.markdown-content a:hover {
  color: var(--color-md-link-hover);
  text-decoration-color: var(--color-md-link-hover-underline);
  text-decoration-thickness: 1.5px;
}

/* Strong and emphasis */
.markdown-content strong {
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.markdown-content em {
  font-style: italic;
  font-weight: 400;
}

/* Lists - fix spacing issues */
.markdown-content ul,
.markdown-content ol {
  margin-bottom: 1.65em;
  padding-left: 1.5em;
}

.markdown-content ul {
  list-style-type: disc;
}

.markdown-content ol {
  list-style-type: decimal;
}

.markdown-content li {
  margin-bottom: 0.45em;
  color: var(--color-md-paragraph);
  line-height: 1.65;
  list-style-position: outside;
}

.markdown-content li::marker {
  color: var(--color-md-marker);
}

.markdown-content ol li::marker {
  font-weight: 500;
  font-size: 0.9em;
}

.markdown-content ul li::marker {
  font-size: 0.7em;
}

/* Fix ALL nested content inside list items - remove extra margins */
.markdown-content li > p {
  margin-top: 0;
  margin-bottom: 0.4em;
}

.markdown-content li > p:first-child {
  margin-top: 0;
}

/* Fix headings inside lists - remove all top margin */
.markdown-content li h1,
.markdown-content li h2,
.markdown-content li h3,
.markdown-content li h4,
.markdown-content li h5,
.markdown-content li h6 {
  margin-top: 0 !important;
  margin-bottom: 0.2em !important;
  display: inline;
}

/* Fix paragraphs immediately after headings in lists */
.markdown-content li h1 + p,
.markdown-content li h2 + p,
.markdown-content li h3 + p,
.markdown-content li h4 + p,
.markdown-content li h5 + p,
.markdown-content li h6 + p {
  margin-top: 0;
}

/* Fix paragraphs inside list items */
.markdown-content li > p {
  margin-top: 0;
  margin-bottom: 0.3em;
}

.markdown-content li > p:only-child {
  margin-bottom: 0;
}

/* Fix ALL images inside lists - super aggressive */
.markdown-content li img {
  margin-top: 0.2em !important;
  margin-bottom: 0.2em !important;
}

/* Fix ALL code blocks inside lists - super aggressive */
.markdown-content li pre {
  margin-top: 0.2em !important;
  margin-bottom: 0.2em !important;
}

/* Also target any nested images/codeblocks */
.markdown-content li * img {
  margin-top: 0.2em !important;
  margin-bottom: 0.2em !important;
}

.markdown-content li * pre {
  margin-top: 0.2em !important;
  margin-bottom: 0.2em !important;
}

/* Blockquotes */
.markdown-content blockquote {
  margin: 1.65em 0;
  padding: 1.1em 1.4em;
  border-left: 3px solid var(--color-md-blockquote-border);
  background-color: var(--color-md-blockquote-bg);
  border-radius: 0 8px 8px 0;
  color: var(--color-md-blockquote-text);
  font-style: normal;
  line-height: 1.7;
}

.markdown-content blockquote p {
  margin-bottom: 0.5em;
  color: var(--color-md-blockquote-text);
}

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

/* Inline code */
.markdown-content code:not(pre code) {
  background-color: var(--color-md-code-inline-bg);
  padding: 0.22em 0.48em;
  border-radius: 5px;
  font-family: 'JetBrains Mono Variable', 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  font-size: 0.88em;
  font-weight: 400;
  color: var(--color-md-code-inline);
  letter-spacing: -0.02em;
}

/* Code blocks */
.markdown-content pre {
  background-color: var(--color-md-code-block-bg);
  border-radius: 10px;
  padding: 1.35em 1.6em;
  margin: 1.65em 0;
  overflow-x: visible;
  overflow-wrap: break-word;
  white-space: pre-wrap;
  border: 1px solid var(--color-md-code-block-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

.markdown-content pre code {
  font-family: 'JetBrains Mono Variable', 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-md-code-text);
  background: none;
  padding: 0;
  letter-spacing: -0.02em;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-feature-settings: "liga" 1, "calt" 1;
}

/* Syntax highlighting - refined colors */
.hljs {
  background: transparent !important;
  color: var(--color-md-code-text);
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-section,
.hljs-link {
  color: #C792EA;
  font-weight: 500;
}

.hljs-string,
.hljs-title,
.hljs-name,
.hljs-type,
.hljs-attribute,
.hljs-symbol,
.hljs-bullet,
.hljs-addition,
.hljs-variable,
.hljs-template-tag,
.hljs-template-variable {
  color: #C3E88D;
}

.hljs-comment,
.hljs-quote,
.hljs-deletion,
.hljs-meta {
  color: var(--color-md-comment);
  font-style: italic;
}

.hljs-number {
  color: #F78C6C;
  font-weight: 500;
}

.hljs-built_in {
  color: #82AAFF;
}

.hljs-function .hljs-keyword {
  color: #C792EA;
}

.hljs-class .hljs-title {
  color: #FFCB6B;
}

.hljs-attr {
  color: #FFCB6B;
}

/* Tables */
.markdown-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.65em 0;
  font-size: 14px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--color-md-table-border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.markdown-content th,
.markdown-content td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-subtle);
}

.markdown-content th {
  background-color: var(--color-md-table-header-bg);
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.markdown-content td {
  color: var(--color-md-table-cell);
}

.markdown-content tr:last-child td {
  border-bottom: none;
}

.markdown-content tr:nth-child(even) td {
  background-color: var(--color-md-table-stripe);
}

.markdown-content tr:hover td {
  background-color: var(--color-md-table-hover);
}

/* Horizontal rule - gradient fade */
.markdown-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-md-hr), transparent);
  margin: 2.5em 0;
}

/* Images */
.markdown-content img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 1.65em 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.markdown-content img:hover {
  transform: translateY(-1px);
}

/* Definition lists */
.markdown-content dl {
  margin: 1.65em 0;
}

.markdown-content dt {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: 1.1em;
}

.markdown-content dd {
  color: var(--color-text-secondary);
  margin-left: 1.65em;
  margin-bottom: 0.55em;
}

/* Abbreviations */
.markdown-content abbr {
  border-bottom: 1px dotted var(--color-text-tertiary);
  cursor: help;
}

/* Mark/highlight */
.markdown-content mark {
  background-color: var(--color-md-mark-bg);
  color: var(--color-md-mark-text);
  padding: 0.18em 0.38em;
  border-radius: 4px;
  font-weight: 500;
}

/* Subscript and superscript */
.markdown-content sub,
.markdown-content sup {
  font-size: 0.75em;
  color: var(--color-text-secondary);
  position: relative;
}

.markdown-content sup {
  vertical-align: super;
  top: -0.25em;
}

.markdown-content sub {
  vertical-align: sub;
  bottom: -0.25em;
}

/* Tables inside lists */
.markdown-content li table {
  margin: 0.85em 0;
  border-radius: 8px;
}

/* Search highlights - high specificity to override Tailwind reset */
span.search-highlight {
  background-color: var(--color-md-highlight-bg) !important;
  color: inherit !important;
  border-radius: 2px;
  padding: 1px 0;
  text-decoration: underline;
  text-decoration-color: var(--color-md-mark-text);
  text-underline-offset: 2px;
  transition: background-color 0.15s ease, outline-color 0.15s ease;
}

span.search-highlight.search-highlight-active {
  background-color: var(--color-md-highlight-active-bg) !important;
  outline: 2px solid var(--color-md-highlight-active-outline);
  outline-offset: 1px;
}

/* OverlayScrollbars custom theme */
.os-theme-dark {
  --os-handle-bg: rgba(255, 255, 255, 0.12);
  --os-handle-bg-hover: var(--color-accent);
  --os-handle-bg-active: var(--color-accent-hover);
  --os-size: 8px;
  --os-handle-border-radius: 4px;
  --os-padding-perpendicular: 2px;
  --os-padding-axis: 2px;
  --os-handle-interactive-area-offset: 4px;
}

.os-theme-dark .os-scrollbar {
  transition: opacity 0.3s ease;
}

.os-theme-dark .os-scrollbar-handle {
  transition: background-color 0.2s ease, opacity 0.2s ease;
}

/* Global focus indicator - WCAG 2.4.7, 2.4.13 */
button:focus-visible,
a:focus-visible,
input:focus-visible,
[tabindex]:focus-visible,
[role="tab"]:focus-visible,
[role="menuitem"]:focus-visible,
[role="separator"]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  z-index: 1;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}