/* ==========================================================================
   SınavLab - Soru Stüdyosu & Kırpma Editörü (editor.css)
   ========================================================================== */

/* Yükleme Ekranı (Upload Dropzone) */
.upload-container {
  max-width: 860px;
  margin: 2.5rem auto;
}

.upload-card {
  background: var(--bg-surface);
  border: 2px dashed rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-lg);
  padding: 4rem 2.5rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.upload-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.upload-card:hover, .upload-card.drag-over {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.06);
  box-shadow: 0 12px 35px -5px rgba(99, 102, 241, 0.25), 0 0 30px var(--primary-glow);
  transform: translateY(-3px);
}

.upload-icon-pulse {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(139, 92, 246, 0.25));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.75rem auto;
  position: relative;
  box-shadow: 0 0 20px var(--primary-glow);
}

.upload-icon-pulse::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0.5;
  animation: pulseRing 2.2s infinite cubic-bezier(0.25, 1, 0.5, 1);
}

@keyframes pulseRing {
  0% { transform: scale(0.92); opacity: 0.8; }
  100% { transform: scale(1.35); opacity: 0; }
}

.upload-title {
  font-size: 1.65rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, #ffffff 40%, #c7d2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .upload-title {
  background: linear-gradient(135deg, #0f172a 40%, #4338ca 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.upload-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.upload-formats {
  display: flex;
  justify-content: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.format-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  background: var(--bg-surface-elevated);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.format-badge:hover {
  border-color: var(--border-focus);
  color: var(--text-primary);
}

/* ==========================================================================
   Stüdyo Ana Düzeni (Studio Layout)
   ========================================================================== */
.studio-layout {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 1.5rem;
  height: calc(100vh - 130px);
  min-height: 680px;
}

/* Sol Panel: Doküman & Canvas Alanı */
.studio-canvas-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-md);
}

/* PDF Araç Çubuğu (Toolbar) */
.canvas-toolbar {
  padding: 0.85rem 1.35rem;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 10;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-indicator {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-main);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.zoom-level {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  font-weight: 700;
  min-width: 50px;
  text-align: center;
  color: var(--accent);
}

/* Canvas Görüntüleyici Konteyneri */
.canvas-viewport {
  flex: 1;
  overflow: auto;
  position: relative;
  background-color: #070a13;
  background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 0);
  background-size: 20px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2.5rem;
  user-select: none;
}

[data-theme="light"] .canvas-viewport {
  background-color: #f1f5f9;
  background-image: radial-gradient(rgba(0, 0, 0, 0.08) 1px, transparent 0);
}

.canvas-wrapper {
  position: relative;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.7);
  display: inline-block;
  background: #ffffff;
  border-radius: 6px;
  overflow: hidden;
}

#pdf-canvas, #image-canvas {
  display: block;
  max-width: none;
  cursor: crosshair;
}

/* Kırpma Seçim Kutusu (Bounding Box) */
.crop-selection-box {
  position: absolute;
  border: 2px solid var(--accent);
  background: rgba(6, 182, 212, 0.18);
  box-shadow: 0 0 0 9999px rgba(10, 14, 26, 0.65), 0 0 20px var(--accent-glow);
  pointer-events: all;
  display: none;
  cursor: move;
  z-index: 20;
}

.crop-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  background: #ffffff;
  border: 2.5px solid var(--accent);
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.crop-handle.nw { top: -7px; left: -7px; cursor: nw-resize; }
.crop-handle.ne { top: -7px; right: -7px; cursor: ne-resize; }
.crop-handle.sw { bottom: -7px; left: -7px; cursor: sw-resize; }
.crop-handle.se { bottom: -7px; right: -7px; cursor: se-resize; }
.crop-handle.n  { top: -7px; left: calc(50% - 6px); cursor: n-resize; }
.crop-handle.s  { bottom: -7px; left: calc(50% - 6px); cursor: s-resize; }
.crop-handle.w  { top: calc(50% - 6px); left: -7px; cursor: w-resize; }
.crop-handle.e  { top: calc(50% - 6px); right: -7px; cursor: e-resize; }

.crop-badge-size {
  position: absolute;
  top: -28px;
  left: 0;
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.crop-action-floating {
  position: absolute;
  bottom: -48px;
  right: 0;
  display: flex;
  gap: 0.5rem;
  z-index: 30;
}

/* Sayfa Önizleme Küçük Resimleri (Thumbnail Drawer) */
.page-thumbnails-bar {
  height: 96px;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.6rem 1.25rem;
  overflow-x: auto;
}

.page-thumb-item {
  height: 100%;
  aspect-ratio: 1 / 1.414;
  background: #ffffff;
  border: 2px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.page-thumb-item:hover {
  transform: translateY(-2px);
  border-color: rgba(99, 102, 241, 0.4);
}

.page-thumb-item.active {
  border-color: var(--primary);
  box-shadow: 0 0 14px var(--primary-glow);
  transform: scale(1.04);
}

.page-thumb-item img, .page-thumb-item canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-thumb-number {
  position: absolute;
  bottom: 3px;
  right: 3px;
  background: rgba(10, 14, 26, 0.85);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 5px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Sağ Panel: Soru Editörü & Soru Havuzu
   ========================================================================== */
.studio-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  padding: 0.35rem;
  gap: 0.35rem;
}

.sidebar-tab {
  flex: 1;
  padding: 0.75rem 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--radius-md);
}

.sidebar-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.sidebar-tab.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 2px 10px var(--primary-glow);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

/* Seçilen Soru Önizleme Kartı */
.preview-crop-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  text-align: center;
}

.crop-img-preview {
  max-width: 100%;
  max-height: 190px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

/* Şık ve Doğru Cevap Seçici */
.options-selector-group {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.options-buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.opt-btn {
  height: 50px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.opt-btn:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.12);
  transform: translateY(-2px);
}

.opt-btn.selected {
  background: linear-gradient(135deg, var(--success), #059669);
  border-color: var(--success);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
  transform: scale(1.06);
}

/* Soru Havuzu Listesi (Question Pool) */
.question-pool-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pool-item {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: var(--transition);
}

.pool-item:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.pool-qnum {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  min-width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-subtle), rgba(139, 92, 246, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.pool-thumb {
  width: 52px;
  height: 42px;
  object-fit: cover;
  border-radius: 5px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
}

.pool-meta {
  flex: 1;
}

.pool-answer-badge {
  font-size: 0.78rem;
  font-weight: 800;
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

[data-theme="light"] .pool-answer-badge {
  background: #dcfce7;
  color: #16a34a;
  border-color: #bbf7d0;
}

.pool-actions {
  display: flex;
  gap: 0.35rem;
}

/* Hızlı Optik Cevap Anahtarı Girişi */
.quick-matrix-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

.quick-matrix-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.quick-matrix-row:hover {
  border-color: var(--border-focus);
}

.quick-matrix-qnum {
  font-size: 0.82rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.quick-bubbles {
  display: flex;
  gap: 0.3rem;
}

.q-bubble {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--border-subtle);
  background: var(--bg-main);
  font-size: 0.72rem;
  font-weight: 800;
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}

.q-bubble:hover {
  border-color: var(--primary);
  color: var(--text-primary);
  transform: scale(1.1);
}

.q-bubble.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--primary-glow);
}

/* Stüdyo Alt Kaydetme Barı */
.studio-footer-actions {
  padding: 1.1rem 1.35rem;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 0.85rem;
}

.studio-footer-actions .btn {
  flex: 1;
}

/* Mobil Uyumluluk */
@media (max-width: 1024px) {
  .studio-layout {
    grid-template-columns: 1fr;
    height: auto;
  }
  .studio-canvas-panel {
    min-height: 520px;
  }
}

/* ==========================================
   KAĞITTAN TEST HAZIRLAMA & CREATOR SEÇİM KARTLARI
   ========================================== */
.creator-welcome-container {
  max-width: 980px;
  margin: 1.5rem auto;
}

.creator-welcome-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.creator-entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 1.5rem;
}

.creator-choice-card {
  background: var(--bg-surface);
  border: 2px dashed var(--border-focus);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.creator-choice-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.creator-choice-card:hover, .creator-choice-card.drag-over {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.06);
  box-shadow: 0 12px 35px -5px rgba(99, 102, 241, 0.25), 0 0 30px var(--primary-glow);
  transform: translateY(-3px);
}

.creator-choice-card.paper-test-card {
  border-color: rgba(6, 182, 212, 0.35);
}

.creator-choice-card.paper-test-card:hover {
  border-color: var(--accent);
  background: rgba(6, 182, 212, 0.06);
  box-shadow: 0 12px 35px -5px rgba(6, 182, 212, 0.25), 0 0 30px var(--accent-glow);
}

.paper-test-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.35s ease-out;
}

.paper-test-form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--secondary));
}

@media (max-width: 768px) {
  .creator-entry-grid {
    grid-template-columns: 1fr;
  }
  .paper-test-form-card {
    padding: 1.25rem;
  }
}