/**
 * dopic.app - Mobile Eraser (AI Object Eraser) Stylesheet
 * Native iOS Design System & Mobile First Workbench
 */

/* 1. Mobile Container & Card Frame */
.m-workspace-wrap {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: 0 0.75rem 1.5rem 0.75rem;
  box-sizing: border-box;
}

.m-workspace-wrap .container {
  width: 100%;
  padding: 0;
  margin: 0;
}

.m-workspace-wrap .main-card {
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

/* 2. Demo Showcase Stage */
.eraser-demo-showcase {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: #ffffff;
}

.eraser-demo-showcase.is-hidden,
body.is-editing .eraser-demo-showcase {
  display: none !important;
}

.demo-showcase-header {
  padding: 0.85rem 1rem 0.5rem 1rem;
}

.demo-showcase-header .demo-desc {
  font-size: 0.85rem;
  font-weight: 600;
  color: #475569;
  line-height: 1.4;
}

.demo-player-box {
  position: relative;
  width: calc(100% - 1.5rem);
  margin: 0.25rem 0.75rem;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  overflow: hidden;
  background: #0f172a;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  touch-action: pan-y;
  user-select: none;
}

.demo-layer-clean,
.demo-layer-orig {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.demo-img,
.demo-img-full {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

.demo-layer-orig {
  width: 50%;
  overflow: hidden;
  border-right: 2px solid rgba(255, 255, 255, 0.95);
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.25);
  z-index: 10;
}

.demo-layer-orig .demo-img-full {
  width: calc(100% * 2);
  max-width: none;
}

.demo-brush-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.85;
}

.demo-brush-overlay .demo-img-full {
  width: calc(100% * 2);
  max-width: none;
}

/* Slider Handle */
.demo-slider-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 0;
  z-index: 20;
  pointer-events: none;
}

.demo-slider-divider .slider-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  color: #ea580c;
}

.demo-footer-controls {
  padding: 0.65rem 0.85rem 0.5rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.demo-indicator-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.demo-tab-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #475569;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.demo-tab-btn.active {
  background: #ea580c;
  color: #ffffff;
  border-color: #ea580c;
  box-shadow: 0 2px 8px rgba(234, 88, 12, 0.3);
}

.demo-tip-hint {
  font-size: 0.74rem;
  color: #94a3b8;
  text-align: center;
}

/* ==========================================================================
   3. Premium iOS Action Button Row (Album Upload + Camera Capture)
   ========================================================================== */
.m-stage-upload-row {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 10px !important;
  padding: 0.75rem 0.85rem 0.95rem 0.85rem !important;
  margin: 0 !important;
  width: 100% !important;
  box-sizing: border-box !important;
  background: #ffffff !important;
  border-top: 1px solid #f1f5f9 !important;
}

.m-stage-upload-row.is-hidden,
body.is-editing .m-stage-upload-row {
  display: none !important;
}

.m-stage-action-btn {
  height: 48px !important;
  min-height: 48px !important;
  border-radius: 14px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  font-size: 0.92rem !important;
  font-weight: 700 !important;
  cursor: pointer !important;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1) !important;
  box-sizing: border-box !important;
  user-select: none !important;
  -webkit-tap-highlight-color: transparent !important;
  text-decoration: none !important;
}

.m-stage-action-btn:active {
  transform: scale(0.97) !important;
}

/* Primary Album Upload Button */
.m-stage-action-btn.m-btn-album {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%) !important;
  color: #ffffff !important;
  border: none !important;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.32) !important;
}

.m-stage-action-btn.m-btn-album svg {
  stroke: #ffffff !important;
}

.m-stage-action-btn.m-btn-album span {
  color: #ffffff !important;
  font-weight: 700 !important;
}

.m-stage-action-btn.m-btn-album:active {
  box-shadow: 0 2px 6px rgba(234, 88, 12, 0.2) !important;
}

/* Secondary Camera Capture Button */
.m-stage-action-btn.m-btn-camera {
  background: #ffffff !important;
  color: #334155 !important;
  border: 1.5px solid #cbd5e1 !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04) !important;
}

.m-stage-action-btn.m-btn-camera svg {
  stroke: #475569 !important;
}

.m-stage-action-btn.m-btn-camera span {
  color: #334155 !important;
  font-weight: 600 !important;
}

.m-stage-action-btn.m-btn-camera:active {
  background: #f8fafc !important;
}

/* ==========================================================================
   4. Mobile Editor Layout & Canvas Viewport
   ========================================================================== */
.editor-layout {
  display: none;
  flex-direction: column;
  gap: 0.85rem;
  padding: 0.75rem;
  background: #ffffff;
}

body.is-editing .editor-layout {
  display: flex !important;
}

.canvas-viewport {
  position: relative;
  width: 100%;
  min-height: 280px;
  max-height: 55vh;
  aspect-ratio: auto;
  border-radius: 14px;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid #334155;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
}

.canvas-viewport canvas {
  display: block;
  max-width: 100%;
  max-height: 55vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

#maskCanvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  touch-action: none;
}

#brushCursor {
  position: absolute;
  border: 2px solid rgba(234, 88, 12, 0.95);
  background: rgba(234, 88, 12, 0.25);
  border-radius: 50%;
  pointer-events: none;
  display: none;
  transform: translate(-50%, -50%);
  z-index: 50;
  box-shadow: 0 0 10px rgba(234, 88, 12, 0.5);
}

/* Toolbar Controls */
.toolbar-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0.75rem 0.5rem 0.25rem 0.5rem;
}

.brush-control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8fafc;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
}

.brush-control-row input[type="range"] {
  flex: 1;
  height: 6px;
  accent-color: #ea580c;
  cursor: pointer;
}

.brush-control-row #brushSizeVal {
  font-size: 0.82rem;
  font-weight: 800;
  color: #ea580c;
  background: #fff7ed;
  padding: 2px 8px;
  border-radius: 6px;
  min-width: 44px;
  text-align: center;
}

.inpaint-action-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 8px;
}

.btn-action {
  height: 44px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-action:active {
  transform: scale(0.97);
}

.btn-action.btn-outline {
  background: #ffffff;
  color: #475569;
  border: 1.5px solid #cbd5e1;
}

.btn-action.btn-primary {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.35);
}

.bottom-action-bar {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 8px;
  padding-top: 0.65rem;
  border-top: 1px solid #f1f5f9;
}

/* ==========================================================================
   5. AI Inpainting Creation Animation Overlay (Mobile Optimized)
   ========================================================================== */
.eraser-creation-overlay {
  position: absolute;
  inset: 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: all;
  border-radius: inherit;
  overflow: hidden;
  animation: creationOverlayFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes creationOverlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.eraser-creation-overlay.fade-out {
  animation: creationOverlayFadeOut 0.28s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes creationOverlayFadeOut {
  from { opacity: 1; transform: scale(1); }
  to { opacity: 0; transform: scale(1.02); }
}

/* Neural Laser Scanning Beam */
.inpaint-scan-beam {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #ea580c;
  box-shadow: 0 0 16px 4px #ea580c, 0 0 32px 8px rgba(249, 115, 22, 0.8);
  pointer-events: none;
  z-index: 61;
  animation: inpaintLaserSweep 1.8s ease-in-out infinite alternate;
}

.inpaint-scan-beam-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to top, rgba(234, 88, 12, 0.25), transparent);
  pointer-events: none;
}

@keyframes inpaintLaserSweep {
  0% { top: 5%; opacity: 0.9; }
  50% { opacity: 1; }
  100% { top: 95%; opacity: 0.9; }
}

/* AI Creation Status HUD Capsule */
.eraser-creation-hud {
  position: relative;
  z-index: 62;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 12px 18px;
  border-radius: 36px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(234, 88, 12, 0.3);
  color: #ffffff;
  user-select: none;
  max-width: 88%;
  animation: hudPopIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes hudPopIn {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.creation-spinner-wrap {
  position: relative;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.creation-spinner {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, 0.15);
  border-top-color: #ea580c;
  border-right-color: #f97316;
  animation: creationSpin 0.85s linear infinite;
}

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

.creation-spinner-core {
  animation: corePulse 1.2s ease-in-out infinite alternate;
}

@keyframes corePulse {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.15); opacity: 1; }
}

.creation-text-box {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
}

.creation-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.creation-sub {
  font-size: 0.7rem;
  color: #cbd5e1;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Mask Canvas Dissolve Shimmer during creation */
body.is-erasing #maskCanvas {
  animation: maskCanvasPulse 1.2s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.7));
}

@keyframes maskCanvasPulse {
  0% { opacity: 0.65; }
  100% { opacity: 0.95; }
}