/* ChemSVG 首页特定CSS */

/* 二维码侧边栏样式 */
.qr-sidebar {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  width: 180px;
}

.qr-container {
  background: white;
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  border: 1px solid #e0e6ed;
  text-align: center;
  transition: all 0.3s ease;
}

.qr-container:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.qr-title {
  font-size: 16px;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid #3498db;
}

.qr-image {
  width: 150px;
  height: 150px;
  border-radius: 8px;
  border: 1px solid #e0e6ed;
  margin-bottom: 10px;
  transition: transform 0.3s ease;
}

.qr-image:hover {
  transform: scale(1.05);
}

.qr-close-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background: #e74c3c;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 1001;
}

.qr-close-btn:hover {
  background: #c0392b;
  transform: scale(1.1);
}

.qr-description {
  font-size: 12px;
  color: #7f8c8d;
  line-height: 1.4;
  margin-top: 8px;
}

/* 操作说明区样式 */
.instruction-container {
  background-color: var(--color-bg-info);
  border-left: 4px solid var(--color-info);
  border-radius: var(--radius-md);
  margin-bottom: 25px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.instruction-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px var(--space-lg);
  cursor: pointer;
  background-color: rgba(33, 150, 243, 0.08);
  transition: background-color var(--transition-fast);
}

.instruction-header:hover {
  background-color: rgba(33, 150, 243, 0.15);
}

.instruction-header h2 {
  color: var(--color-info);
  font-size: 1.2rem;
  margin: 0;
  display: flex;
  align-items: center;
}

.toggle-icon {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-info);
  width: 24px;
  height: 24px;
  line-height: 22px;
  text-align: center;
  border-radius: var(--radius-circle);
  border: 2px solid var(--color-info);
  transition: transform var(--transition-normal);
}

.instruction-content {
  padding: 0 var(--space-lg) 15px;
  max-height: 1000px;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  overflow: hidden;
}

.instruction-content.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

.instruction-content ul {
  list-style-type: none;
  padding-left: 10px;
  margin-top: 10px;
}

.instruction-content li {
  margin-bottom: var(--space-sm);
  position: relative;
  padding-left: var(--space-lg);
  font-size: var(--text-base);
}

.instruction-content li:before {
  content: '\2022';
  color: var(--color-info);
  font-weight: bold;
  position: absolute;
  left: 0;
  top: 0;
  font-size: 1.2em;
}

.instruction-content strong {
  color: #1565c0;
}

/* 紧凑型操作说明样式 */
.instruction-compact {
  background-color: var(--color-bg-compact);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: var(--space-md);
}

.instruction-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
}

.instruction-item {
  flex: 1;
  min-width: 230px;
  background-color: white;
  padding: 12px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--color-primary);
}

.instruction-item:nth-child(1) {
  border-left-color: var(--color-primary);
}

.instruction-item:nth-child(2) {
  border-left-color: var(--color-success);
}

.instruction-item:nth-child(3) {
  border-left-color: var(--color-warning);
}

.instruction-item h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: var(--text-md);
  color: var(--color-secondary);
  padding-bottom: 5px;
  border-bottom: 1px solid #eee;
}

.instruction-item:nth-child(1) h4 {
  color: var(--color-primary);
}

.instruction-item:nth-child(2) h4 {
  color: var(--color-success);
}

.instruction-item:nth-child(3) h4 {
  color: var(--color-warning);
}

.instruction-item p {
  margin: 5px 0;
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-text-light);
}

.instruction-item strong {
  color: var(--color-secondary-light);
  font-weight: 600;
}

.instruction-item code {
  background-color: var(--color-bg-compact);
  padding: 1px 4px;
  border-radius: var(--radius-sm);
  font-family: var(--font-family-code);
  font-size: 90%;
  color: var(--color-danger);
  border: 1px solid #eee;
}

/* 表单样式 */
.equation-builder {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg) var(--space-lg) 15px;
  margin-bottom: 25px;
  border: 1px solid var(--color-border-lighter);
}

.input-group {
  display: flex;
  gap: 25px;
  margin-bottom: 25px;
}

.form-section {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.reactants-section, .products-section {
  flex: 1;
}

.symbol-section {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
}

.reaction-symbol-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 15px var(--space-lg);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  justify-content: space-around;
  height: 190px;
}

/* 符号区样式 */
.symbol-input-row {
  display: flex;
  align-items: center;
  height: 38px;
}

.symbol-input-row label {
  width: 35%;
  text-align: right;
  padding-right: 15px;
  margin-bottom: 0;
  white-space: nowrap;
  font-size: var(--text-base);
  color: var(--color-secondary);
  font-weight: 600;
}

.symbol-select-container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-lg);
}

.symbol-preview {
  font-size: var(--text-4xl);
  font-weight: bold;
  color: var(--color-primary);
  background-color: white;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-circle);
  box-shadow: 0 3px 8px rgba(52,152,219,0.2);
  transition: var(--transition-normal);
}

.symbol-preview:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(52,152,219,0.3);
}

/* 表单元素通用样式 */
label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: left;
}

textarea, input[type="text"], select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--text-base);
  resize: vertical;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

textarea:focus, input[type="text"]:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea {
  height: 190px;
  max-height: 190px;
  min-height: 190px;
}

select {
  background-color: white;
  cursor: pointer;
  width: auto;
  min-width: 200px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233498db' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 1em;
  padding-right: 30px;
}

/* 生成区域样式 */
.generate-options-container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 15px;
  padding: 10px 15px;
  border-top: 1px solid var(--color-border-light);
  background-color: #f9f9f9;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  gap: var(--space-md);
}

.balance-option {
  display: flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  background-color: rgba(230, 126, 34, 0.08);
  border: 1px solid rgba(230, 126, 34, 0.15);
  white-space: nowrap;
}

.balance-option input {
  margin-right: 6px;
  width: 16px;
  height: 16px;
}

.balance-option label {
  display: flex;
  align-items: center;
  margin-bottom: 0;
  margin-right: var(--space-sm);
}

.balance-option label span {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-light);
}

.balance-warning {
  color: var(--color-warning);
  font-size: var(--text-xs);
  font-style: italic;
}

.generate-button-wrapper {
  flex: 0 0 auto;
}

/* 结果区域 */
.result-container, .direct-latex-input {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 25px;
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-lighter);
  transition: box-shadow var(--transition-normal), transform var(--transition-fast);
}

.result-container:hover, .direct-latex-input:hover {
  box-shadow: 0 5px 20px rgba(52, 152, 219, 0.15);
  transform: translateY(-2px);
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
  padding-bottom: 15px;
  border-bottom: 2px solid #f2f5f8;
}

.result-header h2 {
  margin: 0;
  color: var(--color-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  position: relative;
  padding-left: 15px;
}

.result-header h2:before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 24px;
  background-color: var(--color-primary);
  border-radius: 3px;
}

.result-actions {
  display: flex;
  gap: 12px;
}

.svg-result {
  min-height: 200px;
  border: 1px dashed #ccd3dd;
  border-radius: var(--radius-lg);
  padding: 25px;
  background-color: #f9fafc;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-normal);
  margin-top: 10px;
}

.svg-result:hover {
  border-color: var(--color-primary);
  background-color: #f0f6fb;
}

.svg-result svg {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.05));
}

/* LaTeX直接输入区 */
.direct-latex-input {
  border-top: 3px solid var(--color-danger);
  margin-top: var(--space-lg);
  transition: var(--transition-normal);
}

.direct-latex-input h2 {
  margin-bottom: 15px;
  color: var(--color-secondary);
  font-size: 1.4rem;
  padding-left: 15px;
}

.direct-latex-input .result-header h2:before {
  background-color: var(--color-danger);
}

/* 分隔线样式 */
.section-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 30px 0;
  color: var(--color-text-lighter);
  font-size: var(--text-lg);
}

.section-divider::before,
.section-divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--color-border-light);
}

.section-divider::before {
  margin-right: 20px;
}

.section-divider::after {
  margin-left: 20px;
}

/* LaTeX输入区样式 */
.latex-input-group {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.latex-input-group textarea {
  flex: 1;
  height: 100px;
  min-height: 100px;
}

.latex-input-group .primary-button {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background-color: var(--color-danger);
  transition: all 0.3s ease;
}

.latex-input-group .primary-button:hover {
  background-color: #c0392b;
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(231, 76, 60, 0.3);
}

/* 响应式调整 */
@media (max-width: 768px) {
  .qr-sidebar {
    position: fixed;
    bottom: 20px;
    right: 20px;
    top: auto;
    transform: none;
    width: 140px;
  }
  
  .qr-container {
    padding: 10px;
  }
  
  .qr-title {
    font-size: 14px;
    margin-bottom: 8px;
  }
  
  .qr-image {
    width: 120px;
    height: 120px;
  }
  
  .qr-description {
    font-size: 11px;
  }
  
  .instruction-row {
    flex-direction: column;
    gap: 10px;
  }
  
  .instruction-item {
    min-width: 100%;
  }
  
  .input-group {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .symbol-section {
    order: -1;
  }
  
  .reaction-symbol-container {
    height: auto;
    padding: var(--space-md);
  }
  
  .result-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  
  .result-actions {
    flex-wrap: wrap;
    width: 100%;
  }
  
  .action-button {
    flex: 1;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .qr-sidebar {
    width: 120px;
    bottom: 10px;
    right: 10px;
  }
  
  .qr-container {
    padding: 8px;
  }
  
  .qr-title {
    font-size: 12px;
    margin-bottom: 6px;
  }
  
  .qr-image {
    width: 100px;
    height: 100px;
  }
  
  .qr-description {
    font-size: 10px;
  }
}