/**
 * jupyter.css - Jupyter 컴포넌트 전용 스타일
 * md+jupyter 타입 콘텐츠용 스타일링
 */

/* =============================================================================
   Jupyter 컨테이너 기본 스타일
   ============================================================================= */

.jupyter-container {
  width: 100%;
  height: 100%;
  position: relative;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  display: none; /* 기본적으로 숨김 */
}

.jupyter-container.component-visible {
  display: flex !important;
  flex-direction: column;
}

.jupyter-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* =============================================================================
   Jupyter iframe 스타일
   ============================================================================= */

.jupyter-iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  flex: 1;
  background: #ffffff;
}

/* iframe 로딩 중 스타일 */
.jupyter-iframe[src="about:blank"] {
  background: #f8f9fa;
  display: none;
}

/* =============================================================================
   로딩 상태 스타일
   ============================================================================= */

.jupyter-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.95);
  z-index: 10;
}

.jupyter-loading .loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #f37626; /* Jupyter 오렌지 색상 */
  border-radius: 50%;
  animation: jupyter-spin 1s linear infinite;
  margin-bottom: 20px;
}

.jupyter-loading p {
  color: #666;
  font-size: 16px;
  margin: 0;
  text-align: center;
}

@keyframes jupyter-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* =============================================================================
   오류 상태 스타일
   ============================================================================= */

.jupyter-error {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  z-index: 11;
}

.jupyter-error .error-content {
  text-align: center;
  padding: 40px;
  max-width: 400px;
}

.jupyter-error h5 {
  color: #dc3545;
  margin-bottom: 16px;
}

.jupyter-error p {
  margin-bottom: 24px;
  line-height: 1.5;
}

.jupyter-error .btn {
  min-width: 120px;
}

/* =============================================================================
   Jupyter 도구 모음 스타일
   ============================================================================= */

.jupyter-toolbar {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 15;
  backdrop-filter: blur(10px);
}

.jupyter-toolbar .toolbar-group {
  display: flex;
  gap: 4px;
}

.jupyter-toolbar .btn {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.jupyter-toolbar .btn:hover {
  background-color: #f8f9fa;
  border-color: #6c757d;
}

/* =============================================================================
   레이아웃별 스타일
   ============================================================================= */

/* Jupyter 레이아웃이 활성화된 경우 */
.layout-jupyter .jupyter-container {
  display: flex !important;
  flex-direction: column;
}

.layout-jupyter .jupyter-container.component-hidden {
  display: flex !important; /* 강제 표시 */
}

/* 다른 레이아웃에서는 숨김 */
.layout-html .jupyter-container,
.layout-ide .jupyter-container,
.layout-quiz .jupyter-container,
.layout-ppt .jupyter-container {
  display: none !important;
}

/* =============================================================================
   반응형 디자인
   ============================================================================= */

@media (max-width: 768px) {
  .jupyter-toolbar {
    top: 8px;
    right: 8px;
    padding: 6px;
  }
  
  .jupyter-toolbar .btn {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }
  
  .jupyter-loading p {
    font-size: 14px;
  }
  
  .jupyter-error .error-content {
    padding: 20px;
  }
  
  .jupyter-error h5 {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .jupyter-toolbar {
    position: relative;
    top: auto;
    right: auto;
    margin: 8px;
    justify-content: center;
  }
  
  .jupyter-container {
    border-radius: 4px;
  }
  
  .jupyter-iframe {
    border-radius: 4px;
  }
}

/* =============================================================================
   다크 모드 지원 (선택사항)
   ============================================================================= */

@media (prefers-color-scheme: dark) {
  .jupyter-container {
    background: #2d2d2d;
    border-color: #404040;
  }
  
  .jupyter-loading {
    background: rgba(45, 45, 45, 0.95);
  }
  
  .jupyter-loading p {
    color: #cccccc;
  }
  
  .jupyter-error {
    background: #2d2d2d;
  }
  
  .jupyter-error .error-content h5 {
    color: #ff6b6b;
  }
  
  .jupyter-error .error-content p {
    color: #cccccc;
  }
  
  .jupyter-toolbar {
    background: rgba(45, 45, 45, 0.95);
    border-color: #404040;
  }
}

/* =============================================================================
   전체화면 모드 스타일
   ============================================================================= */

.jupyter-iframe:fullscreen {
  border-radius: 0;
}

.jupyter-iframe:-webkit-full-screen {
  border-radius: 0;
}

.jupyter-iframe:-moz-full-screen {
  border-radius: 0;
}

/* =============================================================================
   접근성 개선
   ============================================================================= */

.jupyter-container:focus-within {
  outline: 2px solid #0066cc;
  outline-offset: 2px;
}

.jupyter-toolbar .btn:focus {
  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
}

/* 스크린 리더용 숨김 텍스트 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =============================================================================
   성능 최적화
   ============================================================================= */

.jupyter-iframe {
  will-change: transform;
  transform: translateZ(0); /* GPU 가속 활성화 */
}

.jupyter-loading .loading-spinner {
  will-change: transform;
}

/* 애니메이션 비활성화 옵션 */
@media (prefers-reduced-motion: reduce) {
  .jupyter-loading .loading-spinner {
    animation: none;
  }
  
  .jupyter-toolbar .btn {
    transition: none;
  }
}