/* AI报价单识别系统 - 简洁样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-light: #a5b4fc;
  --primary-dark: #4f46e5;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: var(--gray-900);
  line-height: 1.6;
}

/* 顶部进度条 */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  z-index: 1000;
  display: none;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--success));
  width: 0%;
  transition: width 0.5s ease;
}

.progress-text {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 1001;
  display: none;
}

body.progress-active .progress-bar,
body.progress-active .progress-text {
  display: block;
}

body.progress-active {
  padding-top: 50px;
}

/* 容器 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px 20px;
}

/* 头部 */
.header {
  text-align: center;
  margin-bottom: 40px;
  color: white;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* 主网格 */
.main-grid {
  display: grid;
  grid-template-columns: 500px 1fr;
  gap: 40px;
  align-items: start;
}

/* 上传区域 */
.upload-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.upload-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.upload-area {
  padding: 40px 30px;
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  margin: 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--gray-50);
}

.upload-area:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.02);
  transform: translateY(-2px);
}

.upload-area.dragover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.02);
}

.upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.upload-icon {
  font-size: 4rem;
  opacity: 0.6;
}

.upload-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.upload-content p {
  color: var(--gray-600);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.upload-hint {
  color: var(--gray-500);
  font-size: 0.9rem;
}

/* 预览区域 */
.preview-area {
  padding: 24px;
}

.preview-header {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-200);
}

.preview-header h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin: 0;
}

.preview-area img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: var(--radius);
  margin-bottom: 16px;
  background: var(--gray-50);
}

.file-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

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

/* 状态卡片 */
.status-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

.status-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 16px;
}

.status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.status-item {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.status-item span:first-child {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.status-item span:last-child {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
}

/* 操作面板 */
.actions-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 通用按钮样式 */
.action-btn {
  padding: 12px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  font-weight: 500;
  border: 1px solid var(--gray-300);
  background: white;
  color: var(--gray-700);
}

.action-btn:hover {
  background: var(--gray-50);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.action-btn.primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.action-btn.primary:hover {
  background: var(--primary-dark);
}

.action-btn.secondary {
  background: var(--gray-100);
  border-color: var(--gray-300);
}

.action-btn:disabled {
  background: var(--gray-400);
  cursor: not-allowed;
  transform: none;
}

/* 结果区域 */
.result-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.card-header {
  padding: 24px;
  border-bottom: 1px solid var(--gray-200);
}

.card-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
}

/* 表单 */
.form-section {
  padding: 24px;
  border-bottom: 1px solid var(--gray-100);
}

.form-section:last-child {
  border-bottom: none;
}

.form-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--gray-800);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-row:last-child {
  margin-bottom: 0;
}

.form-field {
  display: flex;
  flex-direction: column;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--gray-700);
}

.form-field input {
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.form-field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-field input.filled {
  background: rgba(16, 185, 129, 0.05);
  border-color: var(--success);
}

/* 产品表格 */
.table-wrapper {
  overflow-x: auto;
}

.items-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 12px;
}

.items-table th {
  background: var(--gray-50);
  padding: 12px 8px;
  text-align: left;
  font-weight: 500;
  font-size: 13px;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-200);
}

.items-table td {
  padding: 8px;
  border-bottom: 1px solid var(--gray-100);
}

.items-table input {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--gray-200);
  border-radius: 4px;
  font-size: 13px;
}

.items-table input:focus {
  outline: none;
  border-color: var(--primary);
}

.btn-remove {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  font-size: 16px;
}

.btn-remove:hover {
  background: rgba(239, 68, 68, 0.1);
}

.add-item {
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius);
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s ease;
}

.add-item:hover {
  background: var(--primary-dark);
}

/* 总计网格 */
.totals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.total-item {
  display: flex;
  flex-direction: column;
}

.total-item.total-main {
  grid-column: 1 / -1;
}

.total-item label {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--gray-700);
}

.total-item input {
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
}

.total-main input {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  border-color: var(--primary);
}

/* 操作按钮 */
.form-actions {
  display: flex;
  gap: 12px;
  padding: 24px;
  background: var(--gray-50);
}

/* 加载动画 */
.btn-loading {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .main-grid {
    grid-template-columns: 450px 1fr;
    gap: 30px;
  }
}

@media (max-width: 1000px) {
  .main-grid {
    grid-template-columns: 400px 1fr;
    gap: 25px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 20px 16px;
  }
  
  .main-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .totals-grid {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .status-grid {
    grid-template-columns: 1fr;
  }
}