ext-apps/examples/pdf-server/src/mcp-app.css

:root {
  color-scheme: light dark;

  /* Background colors */
  --bg000: light-dark(#ffffff, #1a1a1a);
  --bg100: light-dark(#f5f5f5, #252525);
  --bg200: light-dark(#e0e0e0, #333333);
  --bg300: light-dark(#cccccc, #444444);

  /* Text colors */
  --text000: light-dark(#1a1a1a, #f0f0f0);
  --text100: light-dark(#666666, #aaaaaa);
  --text200: light-dark(#999999, #888888);

  /* Shadows */
  --shadow-page: light-dark(0 2px 8px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.4));
  --selection-bg: light-dark(rgba(0, 0, 255, 0.3), rgba(100, 150, 255, 0.4));
}

body {
  overscroll-behavior-x: none;
  display: flex;
}

.main {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  background: var(--bg100);
  color: var(--text000);
  overflow: hidden; /* Prevent scrollbars in inline mode - we request exact size */
  border-radius: 0.75rem;
  border: 1px solid var(--bg200);
}

/* Loading State */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 0.75rem;
  padding: 2rem;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--bg200);
  border-top-color: var(--text100);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

#loading-text {
  font-size: 0.8rem;
  color: var(--text100);
}

/* Progress Bar */
.progress-container {
  width: 100%;
  max-width: 200px;
  height: 3px;
  background: var(--bg200);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--text100);
  width: 0%;
  transition: width 0.15s ease-out;
}

.progress-text {
  font-size: 0.7rem;
  color: var(--text200);
}

/* Error State */
.error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
}

.error-icon {
  font-size: 3rem;
}

#error-message {
  color: var(--text200);
  max-width: 400px;
}

/* Viewer Container */
.viewer {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: visible;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: var(--bg000);
  border-bottom: 1px solid var(--bg200);
  flex-shrink: 0;
  gap: 0.5rem;
  height: 48px;
  box-sizing: border-box;
}

.toolbar-left {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.pdf-title {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.9rem;
  display: block;
  max-width: 100%;
}

.toolbar-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}

/* Page Navigation */
.page-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.page-input {
  width: 50px;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--bg200);
  border-radius: 4px;
  font-size: 0.85rem;
  text-align: center;
  background: var(--bg000);
  color: var(--text000);
}

.page-input:focus {
  outline: none;
  border-color: var(--text100);
}

.page-input::-webkit-outer-spin-button,
.page-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.page-input[type="number"] {
  -moz-appearance: textfield;
}

.total-pages {
  font-size: 0.85rem;
  color: var(--text100);
  white-space: nowrap;
}

.nav-btn,
.zoom-btn,
.fullscreen-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--bg200);
  border-radius: 4px;
  background: var(--bg000);
  color: var(--text000);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.15s ease;
}

.nav-btn:hover:not(:disabled),
.zoom-btn:hover:not(:disabled),
.fullscreen-btn:hover {
  background: var(--bg100);
  border-color: var(--bg300);
}

.nav-btn:disabled,
.zoom-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.zoom-level {
  font-size: 0.8rem;
  color: var(--text100);
  min-width: 50px;
  text-align: center;
}

/* Single Page Canvas Container */
.canvas-container {
  flex: 1;
  overflow: visible;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1rem;
  background: var(--bg200);
}

.page-wrapper {
  position: relative;
  box-shadow: var(--shadow-page);
  background: white;
}

#pdf-canvas {
  display: block;
}

/* Text Layer for Selection */
.text-layer {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  opacity: 0.2;
  line-height: 1;
  text-size-adjust: none;
  forced-color-adjust: none;
  transform-origin: 0 0;
  z-index: 2;
}

.text-layer span,
.text-layer br {
  color: transparent;
  position: absolute;
  white-space: pre;
  cursor: text;
  transform-origin: 0% 0%;
}

.text-layer ::selection {
  background: var(--selection-bg);
}

.text-layer > span {
  pointer-events: all;
}

/* Fullscreen mode */
.main.fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  overflow: hidden; /* No scrolling on main - only canvas-container scrolls */
  border-radius: 0;
  border: none;
}

.main.fullscreen .viewer {
  min-height: 0; /* Allow flex item to shrink below content size */
}

.main.fullscreen .canvas-container {
  min-height: 0; /* Allow flex item to shrink below content size */
  overflow: auto; /* Scroll within the document area only */
}