/* ==========================================================================
   SınavLab - Öğrenci Sınav Arayüzü & Dijital Optik Form (exam.css)
   ========================================================================== */

.exam-view-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 1480px;
  margin: 0 auto;
}

/* Sınav Üst Barı */
.exam-top-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.exam-top-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
}

.exam-header-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.exam-current-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.exam-timer-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-surface-elevated);
  border: 1.5px solid var(--border-focus);
  padding: 0.55rem 1.35rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.exam-timer-pill.warning {
  border-color: var(--warning);
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.15);
  box-shadow: 0 0 20px var(--warning-glow);
  animation: timerBlink 1.2s infinite alternate ease-in-out;
}

.exam-timer-pill.danger {
  border-color: var(--danger);
  color: #f87171;
  background: rgba(244, 63, 94, 0.2);
  box-shadow: 0 0 25px var(--danger-glow);
  animation: timerBlink 0.8s infinite alternate ease-in-out;
}

@keyframes timerBlink {
  0% { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(1.05); opacity: 1; }
}

/* Sınav Ana Düzeni */
.exam-main-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 1.5rem;
  min-height: calc(100vh - 200px);
}

/* Soru Gösterim Alanı (Sol Panel) */
.question-viewport-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.question-card-header {
  padding: 1.1rem 1.75rem;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.q-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--text-primary);
}

.q-topic-tag {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.18);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.35);
}

/* Soru Görsel Konteyneri */
.question-content-box {
  flex: 1;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: #070a13;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 0);
  background-size: 24px 24px;
  position: relative;
  overflow: auto;
}

[data-theme="light"] .question-content-box {
  background-color: #f1f5f9;
  background-image: radial-gradient(rgba(0, 0, 0, 0.06) 1px, transparent 0);
}

.question-image-wrapper {
  max-width: 100%;
  max-height: 700px;
  border-radius: var(--radius-md);
  box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.6);
  background: #ffffff;
  padding: 0.85rem;
  position: relative;
  transition: transform 0.2s ease;
}

.question-image-wrapper.is-paper-mode {
  background: transparent;
  box-shadow: none;
  padding: 0;
  width: 100%;
}

.paper-exam-q-prompt {
  padding: 3.5rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  border: 2px dashed rgba(99, 102, 241, 0.35);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  width: 100%;
  animation: fadeIn 0.3s ease-out;
}

.paper-prompt-icon {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(99, 102, 241, 0.2));
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px var(--accent-glow);
}

.question-img {
  max-width: 100%;
  max-height: 650px;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

.zoom-btn-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(10, 14, 26, 0.88);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition);
}

.zoom-btn-overlay:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.06);
  box-shadow: 0 0 15px var(--primary-glow);
}

/* Soru Alt Şık Seçici */
.question-options-strip {
  padding: 1.35rem 2rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.options-label {
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-secondary);
}

.options-container {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.exam-opt-btn {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.exam-opt-btn:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  background: rgba(99, 102, 241, 0.15);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.exam-opt-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 6px 20px var(--primary-glow);
  transform: scale(1.1);
}

.btn-clear-choice {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  padding: 0.4rem;
  transition: var(--transition);
}

.btn-clear-choice:hover {
  color: var(--danger);
}

/* Alt Navigasyon Çubuğu */
.question-nav-footer {
  padding: 1.1rem 1.75rem;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   Dijital Optik Form Paneli (Sağ Panel)
   ========================================================================== */
.optical-sheet-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.optical-header {
  padding: 1.1rem 1.35rem;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.optical-title {
  font-size: 1.1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.optical-stats-badge {
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.18);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.35);
}

/* Optik Satırlar */
.optical-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.optical-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.optical-row:hover {
  border-color: var(--border-focus);
  background: var(--bg-surface-hover);
}

.optical-row.current {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.14);
  box-shadow: 0 0 14px var(--primary-glow);
}

.optical-row.flagged {
  border-left: 4px solid var(--warning);
}

.optical-q-info {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.9rem;
  min-width: 48px;
}

.flag-icon-mini {
  color: var(--warning);
  display: none;
}

.optical-row.flagged .flag-icon-mini {
  display: inline-block;
}

.optical-bubbles {
  display: flex;
  gap: 0.4rem;
}

.opt-bubble {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--border-subtle);
  background: var(--bg-main);
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.opt-bubble:hover {
  border-color: var(--primary);
  color: var(--text-primary);
  transform: scale(1.12);
}

.opt-bubble.filled {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 10px var(--primary-glow);
  transform: scale(1.05);
}

.optical-footer {
  padding: 1.1rem 1.35rem;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
}

/* Modal Görsel Büyütme (Image Zoom Lightbox) */
.zoom-modal-content {
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zoom-modal-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  background: #ffffff;
}

/* Mobil & Tablet Uyumluluk */
@media (max-width: 1024px) {
  .exam-main-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    min-height: auto;
  }
  .optical-sheet-panel {
    max-height: 380px;
  }
}

@media (max-width: 768px) {
  .exam-top-bar {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .exam-header-info {
    flex: 1 1 auto;
  }
  .exam-current-title {
    font-size: 1.05rem;
  }
  .exam-timer-pill {
    padding: 0.35rem 0.85rem;
    font-size: 0.95rem;
  }
  .question-content-box {
    padding: 1rem 0.5rem;
  }
  .question-image-wrapper {
    padding: 0.5rem;
    max-height: 380px;
  }
  .question-img {
    max-height: 350px;
  }
  .question-options-strip {
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .options-container {
    justify-content: center;
    gap: 0.5rem;
  }
  .exam-opt-btn {
    width: 48px;
    height: 48px;
    font-size: 1.15rem;
  }
  .btn-clear-choice {
    width: 100%;
    text-align: center;
  }
  .question-nav-footer {
    padding: 0.85rem 1rem;
    gap: 0.4rem;
  }
  .question-nav-footer .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .exam-top-bar {
    justify-content: center;
  }
  .exam-top-bar .btn-danger {
    width: 100%;
  }
  .exam-opt-btn {
    width: 44px;
    height: 44px;
    font-size: 1.05rem;
  }
  .question-nav-footer {
    flex-wrap: wrap;
  }
  .question-nav-footer .btn {
    flex: 1 1 calc(50% - 0.4rem);
  }
  .question-nav-footer #btn-exam-next {
    flex: 1 1 100%;
  }
}