/**
 * DZ-Slides (DZ-Impress Pro) — Presentation Studio Design System
 * Inspired by Microsoft PowerPoint, Apple Keynote, and HeyPuter/everything standard.
 * 100% Offline-First | Zero Emojis | Vector SVGs Only
 */

:root {
  --primary: #ea580c;
  --primary-hover: #c2410c;
  --primary-light: #fff7ed;
  --accent: #059669;
  --accent-light: #ecfdf5;
  --surface: #ffffff;
  --bg: #0f172a;
  --stage-bg: #1e293b;
  --border: #334155;
  --border-light: #475569;
  --text: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --slide-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 1px rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Cairo', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  user-select: none;
}

/* 1. App Header */
.app-header {
  background: #090d16;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px;
  gap: 12px;
  z-index: 100;
  flex-shrink: 0;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-logo {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(234, 88, 12, 0.4));
}

.deck-meta {
  display: flex;
  flex-direction: column;
}

.deck-title-input {
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  border: 1px solid transparent;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: transparent;
  outline: none;
  transition: all 0.15s ease;
  min-width: 240px;
}

.deck-title-input:hover {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.05);
}

.deck-title-input:focus {
  border-color: var(--primary);
  background: rgba(15, 23, 42, 0.9);
  box-shadow: 0 0 0 2px rgba(234, 88, 12, 0.2);
}

.top-menu-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}

.menu-dropdown {
  position: relative;
}

.menu-btn {
  background: transparent;
  border: none;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
}

.menu-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.menu-content {
  display: none;
  position: absolute;
  top: 100%;
  inset-inline-start: 0;
  background: #1e293b;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 4px 0;
  z-index: 1000;
}

.menu-dropdown:hover .menu-content {
  display: block;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  font-size: 12.5px;
  color: var(--text);
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: inherit;
  font-family: inherit;
  transition: background 0.1s;
}

.menu-item:hover {
  background: rgba(234, 88, 12, 0.15);
  color: var(--primary);
}

.menu-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid var(--border);
  background: #1e293b;
  color: var(--text);
}

.btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-light);
}

.btn-primary {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #ffffff !important;
}

.btn-primary:hover {
  background: var(--primary-hover) !important;
}

/* 2. Ribbon Toolbar */
.ribbon-toolbar {
  background: #131b2e;
  border-bottom: 1px solid var(--border);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  z-index: 80;
  flex-shrink: 0;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-inline-end: 8px;
  border-inline-end: 1px solid var(--border);
}

.tool-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  cursor: pointer;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s ease;
  height: 30px;
}

.tool-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border);
}

.color-picker-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.color-picker-wrap input[type="color"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* 3. Main Workspace Layout */
.workspace-layout {
  flex: 1;
  display: flex;
  overflow: hidden;
  background: #090d16;
  position: relative;
}

/* Sidebar Thumbnails */
.thumbnails-sidebar {
  width: 220px;
  background: #0f172a;
  border-inline-end: 1px solid var(--border);
  overflow-y: auto;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-shrink: 0;
}

.slide-thumb {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all 0.15s ease;
}

.slide-thumb:hover {
  background: rgba(255, 255, 255, 0.05);
}

.slide-thumb.active {
  border-color: var(--primary);
  background: rgba(234, 88, 12, 0.12);
}

.thumb-badge {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-muted);
  width: 16px;
  text-align: center;
}

.thumb-canvas-mini {
  flex: 1;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 4px;
}

.mini-title {
  font-size: 9px;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Canvas Viewport */
.canvas-viewport {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}

.slide-stage-wrapper {
  position: relative;
}

.slide-stage {
  width: 960px;
  height: 540px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: var(--slide-shadow);
  position: relative;
  overflow: hidden;
  transform-origin: center center;
}

/* Interactive Slide Elements */
.slide-element {
  position: absolute;
  outline: none;
  box-sizing: border-box;
  padding: 6px;
  cursor: move;
  border: 1px dashed transparent;
  transition: border-color 0.15s;
  user-select: text;
}

.slide-element:hover {
  border-color: rgba(56, 189, 248, 0.5);
}

.slide-element.selected {
  border: 1.5px solid #38bdf8 !important;
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.3);
}

/* Selection Resize Handles */
.resize-handle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: #38bdf8;
  border: 1px solid #ffffff;
  border-radius: 2px;
  z-index: 100;
  display: none;
}

.slide-element.selected .resize-handle {
  display: block;
}

.handle-nw { top: -4px; left: -4px; cursor: nwse-resize; }
.handle-n  { top: -4px; left: calc(50% - 4px); cursor: ns-resize; }
.handle-ne { top: -4px; right: -4px; cursor: nesw-resize; }
.handle-e  { top: calc(50% - 4px); right: -4px; cursor: ew-resize; }
.handle-se { bottom: -4px; right: -4px; cursor: nwse-resize; }
.handle-s  { bottom: -4px; left: calc(50% - 4px); cursor: ns-resize; }
.handle-sw { bottom: -4px; left: -4px; cursor: nesw-resize; }
.handle-w  { top: calc(50% - 4px); left: -4px; cursor: ew-resize; }

/* Export Hub Grid */
.export-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.export-card {
  background: #0f172a;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.export-card:hover {
  border-color: var(--primary);
  background: rgba(234, 88, 12, 0.1);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.export-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.export-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(234, 88, 12, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.export-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}

.export-card-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Floating Element Toolbar */
.element-toolbar {
  position: absolute;
  top: -38px;
  right: 0;
  background: #1e293b;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  display: none;
  align-items: center;
  gap: 4px;
  z-index: 200;
  box-shadow: var(--shadow-md);
}

.slide-element.selected .element-toolbar {
  display: flex;
}

.toolbar-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  padding: 3px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toolbar-icon-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

/* 4. Bottom Live Status Bar */
.status-bar {
  background: #090d16;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 16px;
  font-size: 11.5px;
  color: var(--text-muted);
  flex-shrink: 0;
  z-index: 90;
}

.status-left, .status-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switcher {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lang-btn {
  padding: 2px 8px;
  border: none;
  background: transparent;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.lang-btn.active {
  background: var(--primary);
  color: #ffffff;
}

/* 5. Fullscreen Slideshow Overlay */
.slideshow-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: #000000;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.slideshow-overlay.active {
  display: flex;
}

.slideshow-screen {
  width: 90vw;
  height: 50.625vw;
  max-height: 90vh;
  max-width: 160vh;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.9);
}

.ss-slide-element {
  position: absolute;
  box-sizing: border-box;
  pointer-events: none;
}

/* Floating Presenter Controls Bar */
.presenter-controls-bar {
  position: fixed;
  bottom: 24px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 30px;
  padding: 6px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
  font-size: 13px;
  z-index: 2200;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  transition: opacity 0.3s ease;
}

.ss-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 12.5px;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.ss-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.ss-btn.active {
  background: #ef4444;
  color: #ffffff;
}

/* Laser Pointer Dot */
.laser-pointer-dot {
  position: fixed;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 18px 6px #ef4444;
  pointer-events: none;
  display: none;
  z-index: 3000;
  transform: translate(-50%, -50%);
}

/* Presentation Pen Drawing Canvas */
.pen-canvas-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2150;
  cursor: crosshair;
  display: none;
}

.pen-canvas-overlay.active {
  display: block;
}

/* 6. Modals */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(3px);
}

.modal-card {
  position: relative;
  background: #1e293b;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  z-index: 10;
  overflow: hidden;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #0f172a;
}

.modal-header h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

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

.modal-body {
  padding: 18px;
  overflow-y: auto;
  font-size: 13px;
  color: var(--text);
}

.modal-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background: #0f172a;
}

/* Templates Grid */
.templates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.template-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  background: #0f172a;
}

.template-card:hover {
  border-color: var(--primary);
  background: rgba(234, 88, 12, 0.1);
  transform: translateY(-1px);
}

.template-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(234, 88, 12, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.template-info h4 {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.template-badge {
  display: inline-block;
  font-size: 10.5px;
  background: #334155;
  color: #94a3b8;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 700;
}

/* Shapes Grid in Modal */
.shapes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.shape-item-card {
  background: #0f172a;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.shape-item-card:hover {
  border-color: var(--primary);
  background: rgba(234, 88, 12, 0.1);
}

.shape-item-preview {
  width: 60px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shape-item-title {
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  color: var(--text-secondary);
}

/* Print Styling */
@media print {
  body {
    background: transparent !important;
    overflow: visible !important;
  }
  .app-header, .ribbon-toolbar, .thumbnails-sidebar, .status-bar, .modal, .presenter-controls-bar {
    display: none !important;
  }
  .workspace-layout, .canvas-viewport {
    padding: 0 !important;
    background: transparent !important;
  }
  .slide-stage {
    box-shadow: none !important;
    width: 100vw !important;
    height: 56.25vw !important;
    page-break-after: always !important;
  }
}