/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body,
html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #525659;
}

/* Material Icons configuration */
.material-symbols-outlined {
  font-size: 20px;
  font-variation-settings:
    'FILL' 0,
    'wght' 400,
    'GRAD' 0,
    'opsz' 20
}

/* Drag and Drop Overlay */
#drag-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

#drag-overlay.hidden {
  display: none;
}

.drag-text {
  color: white;
  font-size: 32px;
  font-weight: 500;
  pointer-events: none;
  background: rgba(32, 33, 36, 0.9);
  padding: 24px 48px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

/* Layout Container */
#app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
}

/* ----------------- Toolbar ----------------- */
#toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 48px;
  background-color: #323639;
  color: #F1F3F4;
  padding: 0 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  z-index: 100;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

#toolbar-left,
#toolbar-center,
#toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

#toolbar-left {
  flex: 1;
}

#toolbar-center {
  flex: 0;
  justify-content: center;
}

#toolbar-right {
  flex: 1;
  justify-content: flex-end;
}

/* Toolbar Buttons */
.icon-button {
  background: transparent;
  border: none;
  color: #bdc1c6;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-button:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #F1F3F4;
}

.icon-button.active {
  background-color: rgba(138, 180, 248, 0.12);
  color: #8ab4f8;
}

.icon-button:active {
  background-color: rgba(138, 180, 248, 0.2);
  transform: scale(0.95);
}

.divider {
  width: 1px;
  height: 20px;
  background-color: rgba(255, 255, 255, 0.1);
  margin: 0 4px;
}

/* Document Title */
#document-title {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
  color: #e8eaed;
  margin-left: 4px;
}

/* Inputs (Page Number, Zoom) */
.toolbar-input {
  background-color: #202124;
  border: 1px solid transparent;
  color: #F1F3F4;
  height: 28px;
  border-radius: 4px;
  padding: 0 8px;
  font-family: inherit;
  font-size: 13px;
  transition: background-color 0.2s, border-color 0.2s;
}

.toolbar-input:hover,
.toolbar-input:focus {
  background-color: #202124;
  border: 1px solid #1A73E8;
  outline: none;
}

#page-input {
  width: 50px;
  text-align: right;
  -moz-appearance: textfield;
  appearance: textfield;
}

#page-input::-webkit-outer-spin-button,
#page-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}

#page-count {
  font-size: 13px;
  color: #bdc1c6;
  white-space: nowrap;
}

/* Zoom Controls Group */
.zoom-controls {
  display: flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 18px;
  padding: 2px;
}

.zoom-input-container {
  display: flex;
  align-items: center;
  position: relative;
}

#zoom-input {
  width: 60px;
  background: transparent;
  border: none;
  color: #F1F3F4;
  text-align: center;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
}

#zoom-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

/* Premium Loading Spinner */
.premium-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(138, 180, 248, 0.1);
  border-left-color: #8ab4f8;
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hidden {
  display: none !important;
}


/* ----------------- Main Content Area ----------------- */
#main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* ----------------- Thumbnails Sidebar (Left) ----------------- */
#sidebar {
  width: 200px;
  background-color: #323639;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  overflow-y: auto;
  transition: width 0.2s;
  display: flex;
  flex-direction: column;
}

#sidebar.hidden {
  width: 0;
  border-right: none;
  overflow: hidden;
}

#thumbnail-view {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.thumbnail-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.thumbnail {
  width: 100%;
  background-color: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  border: 3px solid transparent;
  transition: border-color 0.1s;
}

.thumbnail-container.active .thumbnail {
  border-color: #1A73E8;
}

.thumbnail-page-num {
  font-size: 12px;
  color: #bdc1c6;
  margin-top: 6px;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 14px;
  height: 14px;
}

::-webkit-scrollbar-track {
  background: rgb(40, 40, 40);
}

::-webkit-scrollbar-thumb {
  background: #525659;
  border-radius: 8px;
  border: 3px solid rgb(40, 40, 40);
}

::-webkit-scrollbar-thumb:hover {
  background: #73777A;
}

/* Viewer Container */
#viewer-container {
  flex: 1;
  overflow: auto;
  position: relative;
  touch-action: pan-x pan-y;
  background: #525659;
}

#viewer {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  gap: 16px;
  position: relative;
  transform-origin: top center;
}

/* Individual PDF Page Canvas styling */
.page-container {
  position: relative;
  background-color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  display: inline-block;
  margin: 0 auto;
  /* CSS scale scaling logic from chrome */
  width: calc(var(--page-width, 816px) * var(--scale-factor, 1));
  height: calc(var(--page-height, 1056px) * var(--scale-factor, 1));
}

/* The :not(.webgl-overlay) guard keeps this generic canvas sizing from
   overriding the webgl_mask plugin's own .webgl-overlay rule (in that plugin's
   stylesheet). It is inert when the plugin folder is absent. */
.page-container > canvas:not(.lower-canvas):not(.upper-canvas):not(.webgl-overlay),
.page-container > img {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: auto;
}

/* Switch to nearest-neighbour only when zoomed above 100% so pixels stay sharp
   without the aliasing that pixelated causes when downscaling. */
.pdfViewer.zoom-in .page-container > img {
  image-rendering: pixelated;
}

/* The right-panel "tools sidebar" (#tools-sidebar) and its inner primitives
   (.tool-card, .tool-input, .tool-btn, …) are owned by the plugin that provides
   that panel — see redaction_matching/static/redaction_matching/styles.css. */

/* ----------------- Sub-Toolbar (Ribbon) ----------------- */
#unified-options-bar-container {
  display: flex;
  flex-direction: column;
  background-color: #292a2d;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  z-index: 90;
  padding: 6px 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

#text-toolbar-row {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;        /* single Word-style ribbon line — never stack onto a 2nd level */
  overflow-x: auto;         /* if it can't fit, scroll horizontally instead of wrapping */
  overflow-y: hidden;
  min-height: 44px;
  scrollbar-width: thin;
}

#text-toolbar-row::-webkit-scrollbar { height: 6px; }
#text-toolbar-row::-webkit-scrollbar-track { background: transparent; }
#text-toolbar-row::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  border-radius: 3px;
}

/* The ribbon is built from "bars". Every bar shares the same flex layout via
   `.ribbon-bar`. A bar that ALSO carries `.options-bar` is one that
   `openSubtoolbar` manages (mutually-exclusive / contextual); a bar with only
   `.ribbon-bar` is a persistent, always-visible region of the ribbon. Styling by
   class means the core never enumerates specific plugins. Visibility of the
   contextual bars is handled by the global `.hidden` rule above. */
.options-bar,
.ribbon-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: transparent;
  padding: 0 12px;
  flex-shrink: 0;
  color: #e8eaed;
  font-size: 13px;
}

/* Reading order across the ribbon is set by each plugin in its own stylesheet
   (`order:` on its bar), so the core never names a plugin's bar and the ribbon
   reads left-to-right regardless of the order plugins inject themselves. */

.options-group {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 3px;
  position: relative;
  padding: 3px 0;
}

/* Word-ribbon convention: the group label sits *below* its controls. */
.options-group-header {
  order: 2;
  font-size: 9px;
  text-transform: uppercase;
  color: #80868b;
  font-weight: 700;
  letter-spacing: 0.06em;
  user-select: none;
}

.options-group-controls {
  order: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.options-divider {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.1), transparent);
  flex-shrink: 0;
  margin: 0 4px;
  align-self: center;
}

/* A shorter divider used *inside* a group's control row, between adjacent
   clusters of controls. */
.options-divider--inline {
  height: 20px;
  margin: 0 6px;
}

.options-label {
  font-size: 12px;
  color: #bdc1c6;
}

/* Inputs & selects (Chrome style) */
.toolbar-select,
.toolbar-input-small {
  background-color: #1f1f1f !important;
  border: 1px solid #3c4043 !important;
  color: #e8eaed !important;
  border-radius: 4px;
  padding: 0 8px;
  font-size: 12px;
  height: 26px;
  font-family: inherit;
  transition: border-color 0.15s, background-color 0.15s;
  outline: none;
}

.toolbar-select:hover,
.toolbar-input-small:hover {
  border-color: #5f6368 !important;
  background-color: #252525 !important;
}

.toolbar-select:focus,
.toolbar-input-small:focus {
  border-color: #8ab4f8 !important;
  background-color: #1f1f1f !important;
  box-shadow: 0 0 0 1px #8ab4f8;
}

/* Specific Widths. Core controls only — a plugin sizes its own inputs in its
   own stylesheet, so the core never names a plugin's DOM. */
#fabric-font-family { min-width: 120px; }
#fabric-font-size, #fabric-letter-spacing { width: 44px; text-align: center; }

/* Customizing Checkboxes */
.checkbox-lbl {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #e8eaed;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.2s;
}

.checkbox-lbl:hover {
  background: rgba(255, 255, 255, 0.08);
}

.checkbox-lbl input {
  accent-color: #8ab4f8;
  width: 14px;
  height: 14px;
}

/* ----------------- Disclaimer Modal ----------------- */
#disclaimer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
}

#disclaimer-overlay.hidden {
  display: none;
}

#disclaimer {
  background: #202124;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 28px 32px;
  max-width: 540px;
  width: 90%;
  color: #e8eaed;
  font-size: 13px;
  line-height: 1.6;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

#disclaimer h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  color: #f28b82;
  display: flex;
  align-items: center;
  gap: 8px;
}

#disclaimer h3::before {
  content: "⚠";
  font-size: 18px;
}

#disclaimer p {
  margin-bottom: 10px;
  color: #bdc1c6;
}

#disclaimer p strong {
  color: #e8eaed;
}

#disclaimer-accept {
  margin-top: 18px;
  width: 100%;
  padding: 10px;
  background: #1A73E8;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}

#disclaimer-accept:hover {
  background: #1557b0;
}

/* ----------------- Mobile Specific Styles (Portrait) ----------------- */
@media (max-width: 768px) {
  #toolbar {
    height: auto;
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 8px;
  }

  #toolbar-left {
    order: 1;
    flex: 0 0 auto;
  }

  #toolbar-center {
    order: 3;
    flex: 1 0 100%;
    margin-top: 4px;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 12px;
    padding: 4px;
  }

  #toolbar-right {
    order: 2;
    flex: 1;
    justify-content: flex-end;
  }

  #document-title {
    display: none; /* Auto-hide title on mobile to save space */
  }

  .zoom-controls {
    display: none; /* Zoom is secondary on mobile; pinch-zoom is preferred */
  }

  /* Overlay Sidebars — the left thumbnails panel. The right-panel overlay
     rules (#tools-sidebar) live with the plugin that owns that panel. */
  #sidebar {
    position: fixed;
    top: 56px; /* Below toolbar */
    bottom: 0;
    width: 280px;
    z-index: 1000;
    box-shadow: 0 0 40px rgba(0,0,0,0.5);
    border: none;
    left: 0;
    transform: translateX(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  #sidebar.hidden {
    transform: translateX(-100%);
    display: flex !important; /* Keep flex context for animation */
    pointer-events: none;
  }

  #sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
    backdrop-filter: blur(2px);
    transition: opacity 0.3s;
  }

  #sidebar-backdrop.hidden {
    display: none;
  }

  /* Sub-toolbar (Ribbon) refinements */
  #unified-options-bar-container {
    height: auto;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .options-group-controls {
    gap: 12px; /* More finger spacing */
  }

  /* Ribbon scrolling - ensure scrollbar is less obtrusive but present if needed */
  #text-toolbar-row::-webkit-scrollbar {
    height: 4px;
  }
  #text-toolbar-row::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
  }
}