/* GradePilot AI - Clean & Modern Paper Capture & Viewport Stylesheet (Somhi Inspired) */

.capture-container-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

/* ==========================================================================
   Clean Action Choice Cards (Take Photo / Upload)
   ========================================================================== */
.capture-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
}

.action-card-upload {
  background: var(--card-background);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-card-upload:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

.action-card-camera {
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-card-camera:hover {
  background: #d4f3ef;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-primary-shadow);
}

.action-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: var(--shadow-sm);
}

.action-card-camera .action-card-icon {
  background: var(--color-primary);
  color: white;
}

.action-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.action-card-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.file-input-hidden {
  display: none;
}

/* Subtle Demo Paper Bar */
.demo-paper-prompt-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.4rem;
}

.link-demo-paper {
  color: var(--color-primary);
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  border: none;
  background: transparent;
}

.link-demo-paper:hover {
  color: var(--color-primary-hover);
}

/* ==========================================================================
   Paper Viewport & Stage (When Paper is Loaded)
   ========================================================================== */
.paper-viewer-card {
  background: var(--card-background);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.viewer-header-bar {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.viewer-meta-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.viewer-roll-pill {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.viewer-student-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.viewer-controls-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-stage-tool {
  background: white;
  border: 1px solid var(--border-color);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-stage-tool:hover {
  background: #f1f5f9;
  color: var(--text-main);
}

/* Viewer Canvas Stage */
.viewer-stage {
  height: 440px;
  position: relative;
  overflow: hidden;
  background: #edf2f7;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  user-select: none;
}

.viewer-stage.grabbing {
  cursor: grabbing;
}

.viewer-content {
  transform-origin: center center;
  transition: transform 0.05s ease-out;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 90%;
  max-width: 600px;
}

.viewer-content img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  transition: filter 0.15s ease;
}

.viewer-drag-hint {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(31, 37, 46, 0.75);
  color: white;
  font-size: 0.72rem;
  padding: 2px 10px;
  border-radius: 12px;
  pointer-events: none;
}

/* Viewer Bottom Action Bar */
.viewer-bottom-action-bar {
  padding: 0.85rem 1rem;
  background: white;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.btn-grade-primary {
  flex: 1;
  background: var(--color-primary);
  color: white;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px var(--color-primary-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-grade-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--color-primary-shadow);
}

.btn-grade-primary:active {
  transform: translateY(0);
}

.btn-change-photo {
  background: var(--background-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-change-photo:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

/* ==========================================================================
   Mobile Camera Viewfinder
   ========================================================================== */
.camera-viewport-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.camera-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-guide-frame {
  width: 84%;
  height: 84%;
  border: 2px dashed rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 12px;
}

.guide-text {
  background: rgba(0, 0, 0, 0.65);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
}

.camera-controls {
  position: absolute;
  bottom: 16px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.btn-shutter {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: white;
  border: 4px solid rgba(255, 255, 255, 0.4);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.btn-shutter:active { transform: scale(0.92); }

.shutter-inner {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-rose);
}

.btn-camera-close {
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 640px) {
  .capture-actions-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .action-card-upload, .action-card-camera {
    padding: 1.25rem 1rem;
  }

  .action-card-icon {
    width: 44px;
    height: 44px;
    font-size: 1.35rem;
  }

  .viewer-stage {
    height: 360px;
  }

  .viewer-bottom-action-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-grade-primary {
    width: 100%;
    padding: 0.85rem;
    font-size: 0.95rem;
  }

  .btn-change-photo {
    width: 100%;
    text-align: center;
  }
}

/* ==========================================================================
   Batch Queue & Multi-Page Viewport Enhancements
   ========================================================================== */
.batch-queue-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, rgba(0, 169, 145, 0.1), rgba(0, 169, 145, 0.04));
  border: 1px solid rgba(0, 169, 145, 0.25);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  margin-bottom: 0.75rem;
}

.batch-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-main);
}

.batch-icon {
  font-size: 1.1rem;
}

.batch-controls {
  display: flex;
  gap: 0.4rem;
}

/* Multi-Page Navigation Pill in Viewer Header */
.page-nav-pill {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 0.2rem 0.6rem;
  box-shadow: var(--shadow-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

.btn-page-step {
  border: none;
  background: transparent;
  color: var(--text-main);
  cursor: pointer;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.75rem;
  transition: background 0.15s ease;
}

.btn-page-step:hover {
  background: var(--color-bg-hover, #f0f4f8);
  color: var(--color-primary);
}

.page-indicator {
  color: var(--text-main);
  padding: 0 0.25rem;
  white-space: nowrap;
}

.btn-add-page-chip {
  border: none;
  background: var(--color-primary-light);
  color: var(--color-primary-dark, #007a68);
  padding: 0.2rem 0.5rem;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-add-page-chip:hover {
  background: var(--color-primary);
  color: white;
}

/* Page Thumbnail Bar below Stage */
.page-thumbnails-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.8rem;
  background: var(--color-bg-subtle, #f8fafc);
  border-top: 1px solid var(--border-color);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-thumb {
  position: relative;
  width: 54px;
  height: 68px;
  border-radius: 6px;
  border: 2px solid var(--border-color);
  background: white;
  padding: 2px;
  cursor: pointer;
  overflow: hidden;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.page-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.page-thumb:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.page-thumb.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light), 0 4px 8px rgba(0, 169, 145, 0.2);
}

.thumb-label {
  position: absolute;
  bottom: 2px;
  right: 2px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
}