/*
 * Drawlive - Collaborative Drawing Review Styles
 */

/* =========================================
   FOUNDATION (Variables & Reset)
   ========================================= */
:root {
  --cdr-primary-color: #007bff;
  --cdr-secondary-color: #6c757d;
  --cdr-danger-color: #dc3545;
  --cdr-success-color: #28a745;
  --cdr-warning-color: #ffc107;
  --cdr-background: rgba(255,255,255,0.5);
  --cdr-surface: #f8f9fa;
  --cdr-border: #dee2e6;
  --cdr-text-primary: #212529;
  --cdr-text-secondary: #6c757d;
  --cdr-border-radius: 4px;
  --cdr-toolbar-height: 48px;
  --cdr-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: var(--cdr-font-family);
  background-color: var(--cdr-surface);
  color: var(--cdr-text-primary);
}

/* =========================================
   LAYOUT
   ========================================= */
.app-container {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 8px 16px;
  background: var(--cdr-background);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(222, 226, 230, 0.2);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  flex-wrap: wrap;
  min-height: 48px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.app-header .logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--cdr-primary-color);
  white-space: nowrap;
}

.app-header .toolbar {
  flex: 1;
  min-height: 32px;
}

.pdf-workspace {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  background: #e0e0e0;
  display: flex;
  flex-direction: column;
}

.pdf-workspace > .toolbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--cdr-background);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(222, 226, 230, 0.2);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 8px 16px;
}

/* =========================================
   DOCUMENT VIEWER
   ========================================= */
.document-viewer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  background: #e0e0e0;
  cursor: grab;
  touch-action: none;
}

.document-viewer.cursor-hand {
  cursor: grab;
}

.document-viewer.cursor-hand:active {
  cursor: grabbing;
}

.document-viewer.cursor-crosshair {
  cursor: crosshair;
}

.document-viewer:active {
  cursor: grabbing;
}

.pdf-workspace > .document-viewer {
  flex: 1;
  position: relative;
}

.viewer-canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  transform-origin: center center;
}

.pdf-canvas {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.pdf-canvas--gl {
  z-index: 1;
}

.pdf-image {
  position: absolute;
  transform-origin: top left;
  pointer-events: none;
  user-select: none;
  max-width: none;
  max-height: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  height: 100%;
}

/* =========================================
   TOOLBAR
   ========================================= */
.toolbar-container {
  grid-column: 1 / -1;
  border: 1px solid var(--cdr-border);
  border-radius: var(--cdr-border-radius);
  padding: 10px;
  margin-bottom: 20px;
}

.toolbar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
}

.tool-group {
  display: flex;
  gap: 2px;
  align-items: center;
  padding: 0 12px;
  border-right: 1px solid var(--cdr-border);
}

.tool-group:last-child {
  border-right: none;
}

/* Кнопка выхода - прижимается к правому краю */
.tool-group.exit-group {
  margin-left: auto;
  border-right: none;
  padding: 0 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Логотип пользователя */
.user-logo {
  width: 1;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.user-logo svg {
  display: block;
  width: 100%;
  height: 100%;
}

.exit-button {
  background: rgba(220, 53, 69, 0.1);
}

.exit-button:hover {
  background: rgba(220, 53, 69, 0.2);
}

.tool-button,
.color-button {
  padding: 6px 8px;
  border: none;
  background: var(--cdr-background);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s ease;
  min-width: 32px;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.tool-button:hover {
  background: rgba(255,255,255,0.8);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.tool-button:active {
  transform: translateY(0) scale(0.95);
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.tool-button.active {
  background: var(--cdr-primary-color);
  color: white;
  box-shadow: 0 2px 8px rgba(0,123,255,0.4);
  transform: scale(1.05);
}

.tool-button.active:hover {
  background: #0056b3;
  transform: scale(1.08);
}

.color-button {
  width: 32px;
  height: 32px;
  min-width: 0;
  min-height: 0;
  padding: 4px;
  font-size: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: all 0.15s ease;
  margin: 0 2px;
  background-clip: content-box;
}

.color-button:hover {
  transform: scale(1.1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.color-button:active {
  transform: scale(1.05);
}

.color-button.active {
  border-color: var(--cdr-primary-color);
  box-shadow: 0 0 0 2px white;
}

.color-button-random {
  font-size: 12px;
  font-weight: bold;
  color: #666;
}

.color-button-random.initialized {
  font-size: 0;
  color: transparent;
}

/* =========================================
   BUTTONS
   ========================================= */
.actions-bar {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  gap: 10px;
  z-index: 100;
}

.action-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--cdr-background);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
}

.action-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.file-action-bar {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 100;
}

.button {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: var(--cdr-border-radius);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

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

.button-primary:hover {
  background: #0056b3;
}

.button-secondary {
  background: var(--cdr-surface);
  color: var(--cdr-text-primary);
  border: 1px solid var(--cdr-border);
}

.button-secondary:hover {
  background: var(--cdr-border-color);
}

.button-danger {
  background: var(--cdr-danger-color);
  color: white;
}

.button-danger:hover {
  background: #c82333;
}

/* =========================================
   ZOOM CONTROLS
   ========================================= */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.zoom-controls .zoom-level {
  font-size: 12px;
  font-weight: 600;
  color: var(--cdr-text-primary);
  min-width: 40px;
  text-align: center;
  padding: 0 4px;
}

/* =========================================
   PAGE NAVIGATION
   ========================================= */
.page-navigation {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-navigation-input {
  width: 32px;
  height: 32px;
  padding: 4px 6px;
  border: 1px solid var(--cdr-border);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  background: white;
  color: var(--cdr-text-primary);
  appearance: textfield;
  -moz-appearance: textfield;
}

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

.page-navigation-input:focus {
  outline: none;
  border-color: var(--cdr-primary-color);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.page-navigation-separator {
  color: var(--cdr-text-secondary);
  font-size: 14px;
  margin: 0 2px;
}

.page-navigation-from {
  font-size: 14px;
  color: var(--cdr-text-secondary);
  min-width: 24px;
  padding: 0 0 0 6px;
}

.page-navigation-total {
  font-size: 14px;
  font-weight: 500;
  color: var(--cdr-text-secondary);
  min-width: 24px;
}

.page-navigation .tool-button {
  padding: 6px 10px;
  font-size: 14px;
}

.page-navigation .tool-button:disabled,
.page-navigation .tool-button.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.page-navigation .tool-button:disabled:hover,
.page-navigation .tool-button.disabled:hover {
  background: var(--cdr-background);
  transform: none;
}

/* =========================================
   UTILITIES
   ========================================= */
.hidden {
  display: none !important;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--cdr-text-secondary);
  font-size: 18px;
}

 /* =========================================
   ANIMATIONS
   ========================================= */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

/* =========================================
   DOCUMENT LOADING OVERLAY
   ========================================= */
.document-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--cdr-background);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: opacity 1s ease;
}

.document-loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.document-loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--cdr-border);
  border-top-color: var(--cdr-primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.document-loading-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--cdr-text-primary);
}

.document-loading-progress {
  font-size: 12px;
  color: var(--cdr-text-secondary);
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-wrap: wrap;
  }

  .tool-group {
    border-right: none;
  }
}

/* PWA стили вынесены в отдельный файл: pwa.css */
/* Video стили вынесены в отдельный файл: video.css */