/* ═══════════════════════════════════════════════════
   管理后台样式
   ═══════════════════════════════════════════════════ */

:root {
  --admin-bg: #0a0a0f;
  --admin-surface: #12121a;
  --admin-surface-2: #1a1a26;
  --admin-border: rgba(255,255,255,0.08);
  --admin-text: #e4e4e7;
  --admin-text-muted: #8b8b9e;
  --admin-primary: #6366f1;
  --admin-primary-hover: #818cf8;
  --admin-danger: #ef4444;
  --admin-danger-hover: #f87171;
  --admin-warning: #f59e0b;
  --admin-success: #10b981;
  --admin-radius: 12px;
  --admin-radius-sm: 8px;
  --admin-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.admin-body {
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: 'Inter', -apple-system, sans-serif;
  min-height: 100vh;
  margin: 0;
}

/* ─────────── 登录页 ─────────── */
.admin-login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: radial-gradient(ellipse at 50% 30%, rgba(99,102,241,0.08) 0%, transparent 60%);
}

.admin-login-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--admin-shadow);
}

.admin-login-header {
  text-align: center;
  margin-bottom: 32px;
}

.admin-login-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--admin-primary), #a78bfa);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.admin-login-icon svg {
  width: 28px;
  height: 28px;
  stroke: white;
}

.admin-login-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.admin-login-header p {
  color: var(--admin-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.admin-login-hint {
  text-align: center;
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  margin-top: 12px;
}

.admin-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: var(--admin-danger);
  padding: 10px 14px;
  border-radius: var(--admin-radius-sm);
  font-size: 0.85rem;
  margin-top: 16px;
  text-align: center;
}

/* ─────────── 输入组件 ─────────── */
.admin-input-group {
  margin-bottom: 20px;
}

.admin-input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--admin-text-muted);
  margin-bottom: 6px;
}

.admin-input-group input,
.admin-input-group textarea,
.admin-input-group select {
  width: 100%;
  padding: 12px 14px;
  background: var(--admin-surface-2);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  color: var(--admin-text);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  box-sizing: border-box;
}

.admin-input-group input:focus,
.admin-input-group textarea:focus,
.admin-input-group select:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.admin-input-group textarea {
  resize: vertical;
  min-height: 80px;
}

.admin-input-group select {
  cursor: pointer;
}

/* ─────────── 按钮 ─────────── */
.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--admin-radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.admin-btn-primary {
  background: var(--admin-primary);
  color: white;
}
.admin-btn-primary:hover {
  background: var(--admin-primary-hover);
  transform: translateY(-1px);
}

.admin-btn-outline {
  background: transparent;
  border: 1px solid var(--admin-border);
  color: var(--admin-text);
}
.admin-btn-outline:hover {
  border-color: var(--admin-primary);
  color: var(--admin-primary);
}

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

.admin-btn-full {
  width: 100%;
  justify-content: center;
  padding: 14px;
}

.admin-btn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
  background: transparent;
  color: var(--admin-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.admin-btn-icon:hover {
  border-color: var(--admin-primary);
  color: var(--admin-primary);
  background: rgba(99,102,241,0.08);
}
.admin-btn-icon--danger:hover {
  border-color: var(--admin-danger);
  color: var(--admin-danger);
  background: rgba(239,68,68,0.08);
}

.admin-btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─────────── 面板布局 ─────────── */
.admin-panel {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
  width: 240px;
  background: var(--admin-surface);
  border-right: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.admin-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px;
  font-weight: 700;
  font-size: 1rem;
  border-bottom: 1px solid var(--admin-border);
}

.admin-sidebar-brand svg {
  stroke: var(--admin-primary);
}

.admin-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--admin-radius-sm);
  color: var(--admin-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
}
.admin-nav-item:hover {
  color: var(--admin-text);
  background: var(--admin-surface-2);
}
.admin-nav-item.active {
  color: white;
  background: var(--admin-primary);
}

.admin-sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* 主内容 */
.admin-main {
  flex: 1;
  margin-left: 240px;
  padding: 32px;
  min-height: 100vh;
}

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

.admin-page-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

/* Tabs */
.admin-tab {
  display: none;
}
.admin-tab.active {
  display: block;
}

/* ─────────── 统计卡片 ─────────── */
.admin-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.admin-stat-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 20px;
  text-align: center;
}

.admin-stat-num {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--admin-primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.admin-stat-label {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

/* ─────────── 产品列表 ─────────── */
.admin-product-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-product-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 16px;
  transition: border-color 0.2s;
}
.admin-product-item:hover {
  border-color: rgba(99,102,241,0.3);
}

.admin-product-thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--admin-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--admin-surface-2);
}
.admin-product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.admin-product-no-img {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--admin-text-muted);
}

.admin-product-info {
  flex: 1;
  min-width: 0;
}
.admin-product-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-product-info p {
  font-size: 0.82rem;
  color: var(--admin-text-muted);
  margin: 0 0 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-product-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.admin-product-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* 徽章 */
.admin-badge {
  display: inline-block;
  padding: 3px 8px;
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: 6px;
  background: var(--admin-surface-2);
  color: var(--admin-text-muted);
  border: 1px solid var(--admin-border);
}
.admin-badge--primary {
  background: rgba(99,102,241,0.12);
  color: var(--admin-primary-hover);
  border-color: rgba(99,102,241,0.3);
}
.admin-badge--tag {
  background: rgba(16,185,129,0.1);
  color: var(--admin-success);
  border-color: rgba(16,185,129,0.2);
}

/* 空状态 */
.admin-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--admin-text-muted);
}
.admin-empty svg {
  opacity: 0.4;
  margin-bottom: 16px;
}
.admin-empty p {
  font-size: 0.9rem;
}

/* ─────────── 表单 ─────────── */
.admin-form {
  max-width: 900px;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.admin-form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--admin-border);
}

/* Radio */
.admin-radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--admin-text);
  cursor: pointer;
}

.admin-radio input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--admin-primary);
}

/* 图片上传 */
.admin-upload-area {
  border: 2px dashed var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--admin-text-muted);
}
.admin-upload-area:hover,
.admin-upload-area.dragover {
  border-color: var(--admin-primary);
  background: rgba(99,102,241,0.04);
}
.admin-upload-area svg {
  margin-bottom: 8px;
  opacity: 0.6;
}
.admin-upload-area p {
  font-size: 0.9rem;
  margin: 0 0 4px;
}
.admin-upload-area span {
  font-size: 0.75rem;
}

.admin-image-preview {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.admin-img-thumb {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: var(--admin-radius-sm);
  overflow: hidden;
  border: 1px solid var(--admin-border);
}
.admin-img-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.admin-img-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(239,68,68,0.9);
  color: white;
  border: none;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─────────── 设置 ─────────── */
.admin-settings-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 24px;
  margin-bottom: 20px;
  max-width: 500px;
}
.admin-settings-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 12px;
}
.admin-settings-desc {
  font-size: 0.85rem;
  color: var(--admin-text-muted);
  margin: 0 0 16px;
}
.admin-settings-danger {
  border-color: rgba(239,68,68,0.2);
}

/* ─────────── Toast 通知 ─────────── */
.admin-toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  font-size: 0.85rem;
  box-shadow: var(--admin-shadow);
  transform: translateX(120%);
  transition: transform 0.3s ease;
  min-width: 240px;
}
.admin-toast.show {
  transform: translateX(0);
}
.admin-toast--success {
  border-left: 3px solid var(--admin-success);
}
.admin-toast--error {
  border-left: 3px solid var(--admin-danger);
}
.admin-toast--warning {
  border-left: 3px solid var(--admin-warning);
}
.admin-toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--admin-text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
}

/* ─────────── 响应式 ─────────── */
@media (max-width: 768px) {
  .admin-sidebar {
    width: 100%;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--admin-border);
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
  }
  .admin-sidebar-brand {
    border-bottom: none;
    padding: 12px 16px;
    white-space: nowrap;
  }
  .admin-nav {
    flex-direction: row;
    padding: 8px;
    gap: 4px;
  }
  .admin-sidebar-footer {
    flex-direction: row;
    border-top: none;
    border-left: 1px solid var(--admin-border);
    padding: 8px;
  }
  .admin-panel {
    flex-direction: column;
  }
  .admin-main {
    margin-left: 0;
    padding: 20px 16px;
  }
  .admin-form-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .admin-stats-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* ═══════════════════════════════════════════════════
   图片裁剪弹窗
   ═══════════════════════════════════════════════════ */
.crop-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.crop-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
}
.crop-modal-content {
  position: relative;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.crop-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--admin-border);
}
.crop-modal-header h3 {
  margin: 0;
  font-size: 16px;
  color: var(--admin-text);
}
.crop-modal-close {
  background: none;
  border: none;
  color: var(--admin-text-muted);
  font-size: 24px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.2s;
}
.crop-modal-close:hover {
  color: var(--admin-text);
}
.crop-modal-body {
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}
.crop-container {
  width: 100%;
  height: 60vh;
  max-height: 500px;
}
.crop-container img {
  display: block;
  max-width: 100%;
  max-height: 100%;
}
.crop-modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.crop-ratio-btns {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.crop-ratio-btn {
  padding: 6px 12px !important;
  font-size: 12px !important;
  min-width: auto !important;
}
.crop-ratio-btn.active {
  background: var(--admin-primary) !important;
  border-color: var(--admin-primary) !important;
  color: #fff !important;
}
.crop-action-btns {
  display: flex;
  gap: 8px;
}

/* Cropper.js 深色主题覆盖 */
.cropper-modal {
  background: rgba(0,0,0,0.6);
}
.cropper-view-box {
  outline: 2px solid var(--admin-primary);
  outline-color: rgba(99,102,241,0.75);
}
.cropper-line {
  background-color: var(--admin-primary);
}
.cropper-point {
  background-color: var(--admin-primary);
  width: 8px;
  height: 8px;
  opacity: 1;
}
.cropper-dashed {
  border-color: rgba(255,255,255,0.3);
}

/* Hero 图片管理 */
.hero-images-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}
.hero-img-slot {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-img-preview {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--admin-surface-2);
  border: 1px dashed var(--admin-border);
  border-radius: var(--admin-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-img-label {
  color: var(--admin-text-muted);
  font-size: 13px;
}
.admin-btn-sm {
  padding: 6px 12px !important;
  font-size: 12px !important;
}

@media (max-width: 600px) {
  .hero-images-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .crop-modal-content {
    max-width: 100%;
  }
  .crop-container {
    height: 50vh;
  }
  .crop-modal-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .crop-ratio-btns {
    justify-content: center;
  }
  .crop-action-btns {
    justify-content: center;
  }
}