/**
 * AfBuy PC Admin Backend - Global Styles
 */

:root {
  --color-primary: #1A73E8;
  --color-success: #34A853;
  --color-danger: #EA4335;
  --color-warning: #F57C00;
  --color-bg-page: #F5F6FA;
  --color-bg-card: #FFFFFF;
  --color-text-primary: #333333;
  --color-text-secondary: #999999;
  --color-border: #E8E8E8;
  --color-pending: #FFF3E0;
  --color-pending-text: #F57C00;
  --color-approved: #E8F5E9;
  --color-approved-text: #2E7D32;
  --color-rejected: #FFEBEE;
  --color-rejected-text: #C62828;
  --color-purchasing: #E3F2FD;
  --color-purchasing-text: #1565C0;
  --color-to-accept: #F3E5F5;
  --color-to-accept-text: #7B1FA2;
  --color-completed: #ECEFF1;
  --color-completed-text: #546E7A;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  line-height: 1.5;
}

/* ========== 登录页面 ========== */
.login-container {
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1A73E8 0%, #1565C0 100%);
}

.login-box {
  background: white;
  padding: 48px 40px;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.login-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.login-form {
  text-align: left;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--color-text-primary);
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.login-button {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.login-button:hover {
  background-color: #1557D0;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.login-button:active {
  transform: scale(0.98);
}

/* ========== 主布局 ========== */
.main-container {
  display: flex;
  width: 100%;
  height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: 200px;
  background-color: var(--color-bg-card);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.sidebar-logo {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary);
}

.sidebar-subtitle {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.nav-menu {
  flex: 1;
  padding: 16px 0;
  list-style: none;
}

.nav-item {
  padding: 12px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.nav-item:hover {
  background-color: var(--color-bg-page);
  color: var(--color-primary);
}

.nav-item.active {
  background-color: var(--color-bg-page);
  border-left-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 500;
}

/* 头部栏 */
.header {
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.header-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.logout-button {
  padding: 8px 16px;
  background-color: var(--color-danger);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.logout-button:hover {
  background-color: #D63127;
}

/* 主内容区 */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
}

.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.content-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-primary);
}

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

/* ========== 按钮 ========== */
.btn {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.btn-primary:hover {
  background-color: #1557D0;
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.2);
}

.btn-primary:active {
  transform: scale(0.95);
}

.btn-secondary {
  background-color: var(--color-bg-page);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

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

.btn-danger:hover {
  background-color: #D63127;
}

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

/* ========== 表格 ========== */
.table-container {
  background-color: var(--color-bg-card);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background-color: var(--color-bg-page);
  border-bottom: 1px solid var(--color-border);
}

th {
  padding: 16px 12px;
  text-align: left;
  font-weight: 500;
  font-size: 13px;
  color: var(--color-text-primary);
}

td {
  padding: 16px 12px;
  font-size: 13px;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}

tbody tr:hover {
  background-color: var(--color-bg-page);
}

tbody tr:last-child td {
  border-bottom: none;
}

.td-actions {
  display: flex;
  gap: 8px;
}

/* ========== 表单 ========== */
.form-container {
  background-color: var(--color-bg-card);
  padding: 24px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.form-row.full {
  grid-template-columns: 1fr;
}

.form-group-container {
  display: flex;
  flex-direction: column;
}

.form-group-container label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.form-group-container input,
.form-group-container select,
.form-group-container textarea {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--color-text-primary);
  font-family: inherit;
}

.form-group-container input:focus,
.form-group-container select:focus,
.form-group-container textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-group-container textarea {
  resize: vertical;
  min-height: 100px;
}

.required::after {
  content: '*';
  color: var(--color-danger);
  margin-left: 4px;
}

/* ========== 模态框 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--color-bg-card);
  border-radius: 8px;
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

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

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
}

/* ========== 搜索和筛选 ========== */
.filter-bar {
  background-color: var(--color-bg-card);
  padding: 16px 24px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.filter-item label {
  color: var(--color-text-secondary);
  min-width: 60px;
}

.filter-item input,
.filter-item select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 13px;
  min-width: 160px;
}

/* ========== 状态标签 ========== */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 500;
}

.status-pending {
  background-color: var(--color-pending);
  color: var(--color-pending-text);
}

.status-approved {
  background-color: var(--color-approved);
  color: var(--color-approved-text);
}

.status-rejected {
  background-color: var(--color-rejected);
  color: var(--color-rejected-text);
}

.status-purchasing {
  background-color: var(--color-purchasing);
  color: var(--color-purchasing-text);
}

.status-to-accept {
  background-color: var(--color-to-accept);
  color: var(--color-to-accept-text);
}

.status-completed {
  background-color: var(--color-completed);
  color: var(--color-completed-text);
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .sidebar {
    width: 160px;
  }

  .content-area {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    height: auto;
    flex-direction: row;
    overflow-x: auto;
  }

  .nav-menu {
    padding: 0;
    display: flex;
    flex-direction: row;
    overflow-x: auto;
  }

  .nav-item {
    padding: 12px 16px;
    white-space: nowrap;
    border-left: none;
    border-bottom: 3px solid transparent;
  }

  .nav-item.active {
    border-left: none;
    border-bottom-color: var(--color-primary);
  }

  .header {
    padding: 12px 16px;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .content-area {
    padding: 16px;
  }

  .filter-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-item {
    width: 100%;
  }

  .filter-item input,
  .filter-item select {
    min-width: unset;
    width: 100%;
  }

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

  table {
    min-width: 600px;
  }
}