/* public/styles.css */

:root {
  /* 浅色主题 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --border-color: #dee2e6;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  
  /* 功能颜色 */
  --primary: #007bff;
  --primary-hover: #0056b3;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
}

html.dark-mode {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #404040;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --border-color: #404040;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow: hidden;
}

/* ============ 通用组件 ============ */

.page {
  display: none;
  width: 100%;
  height: 100%;
}

.page.active {
  display: flex;
}

.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-success {
  background-color: var(--success);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: #218838;
  box-shadow: var(--shadow);
}

.btn-danger {
  background-color: var(--danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: #c82333;
  box-shadow: var(--shadow);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 16px;
}

.btn-icon:hover {
  background-color: var(--bg-secondary);
}

.btn-full {
  width: 100%;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.message {
  padding: var(--spacing-md);
  border-radius: 6px;
  margin-bottom: var(--spacing-md);
  animation: slideIn 0.3s ease;
}

.message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.message.info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ 登录页面 ============ */

.login-page {
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-lg);
}

.login-card {
  background-color: var(--bg-primary);
  border-radius: 12px;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-header h1 {
  font-size: 28px;
  margin-bottom: var(--spacing-sm);
}

.login-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

.login-form {
  margin-bottom: var(--spacing-lg);
}

.login-footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-md);
}

#loginError {
  margin-top: var(--spacing-md);
}

/* ============ 应用页面 ============ */

.app-page {
  flex-direction: column;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.header-left {
  flex: 0 0 auto;
}

.app-title {
  font-size: 20px;
  font-weight: 600;
}

.header-center {
  flex: 1 1 auto;
  min-width: 200px;
}

.page-tabs {
  display: flex;
  gap: var(--spacing-sm);
  overflow-x: auto;
  padding-bottom: var(--spacing-sm);
}

.page-tabs::-webkit-scrollbar {
  height: 4px;
}

.page-tabs::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.page-tabs::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

.tab-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  font-size: 14px;
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

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

.header-right {
  display: flex;
  gap: var(--spacing-sm);
  flex: 0 0 auto;
}

.message-container {
  padding: 0 var(--spacing-lg);
  padding-top: var(--spacing-md);
}

.app-main {
  flex: 1;
  overflow: auto;
  padding: var(--spacing-lg);
}

.page-header {
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============ 表格 ============ */

.table-container {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
}

.table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  background-color: var(--bg-tertiary);
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-color);
  min-width: 100px;
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.data-table tbody tr:hover {
  background-color: var(--bg-primary);
}

.data-table input {
  width: 100%;
  min-width: 80px;
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

.data-table input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.1);
}

.actions-cell {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  white-space: nowrap;
}

.btn-delete-row {
  padding: 4px 8px;
  font-size: 12px;
  background-color: var(--danger);
  color: white;
}

/* ============ 操作栏 ============ */

.action-bar {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ============ 模态框 ============ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.modal-content {
  position: relative;
  background-color: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 18px;
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
}

.pages-list {
  margin-bottom: var(--spacing-xl);
}

.page-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: 6px;
  margin-bottom: var(--spacing-md);
}

.page-info h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 14px;
}

.page-info p {
  font-size: 12px;
  color: var(--text-secondary);
}

.add-page-form {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.add-page-form h3 {
  font-size: 16px;
  margin-bottom: var(--spacing-md);
}

/* ============ 响应式 ============ */

@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-left,
  .header-center,
  .header-right {
    width: 100%;
  }

  .header-right {
    justify-content: flex-start;
  }

  .app-main {
    padding: var(--spacing-md);
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm);
    font-size: 12px;
  }

  .data-table input {
    min-width: 60px;
    padding: 4px;
  }

  .btn {
    padding: 8px 12px;
    font-size: 12px;
  }

  .modal-content {
    width: 95%;
    max-height: 90vh;
  }
}

@media (max-width: 480px) {
  .login-container {
    max-width: 100%;
  }

  .page-tabs {
    gap: 4px;
  }

  .tab-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  .btn-icon {
    width: 36px;
    height: 36px;
  }

  .action-bar {
    gap: var(--spacing-sm);
  }

  .btn {
    flex: 1;
    justify-content: center;
  }
}

/* ============ 加载状态 ============ */

.loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  margin-left: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============ 打印样式 ============ */

@media print {
  .app-header,
  .action-bar,
  .modal {
    display: none;
  }

  body {
    background: white;
  }

  .data-table input {
    border: none;
    background: none;
  }
}

/* 行编辑样式 */
.data-cell {
  padding: 0 !important;
}

.cell-text {
  display: block;
  padding: var(--spacing-md);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.cell-input {
  padding: var(--spacing-sm) !important;
  border: 1px solid var(--primary) !important;
  border-radius: 4px !important;
}

.btn-edit-row {
  background-color: #17a2b8;
  color: white;
  padding: 4px 8px;
  font-size: 12px;
  margin-right: 4px;
}

.btn-edit-row:hover {
  background-color: #138496;
}

/* 页面编辑样式 */
.page-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.page-title-input,
.page-columns-input {
  width: 100%;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--primary);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

.btn-edit-page {
  background-color: #17a2b8;
  color: white;
  padding: 6px 12px;
  font-size: 12px;
}

.btn-edit-page:hover {
  background-color: #138496;
}