/* ========================================
   阿妹阿姐 Admin 后台 - 初夏学院风
   ======================================== */

:root {
  --bg: #F5F6FA;
  --bg-card: #FFFFFF;
  --bg-input: #F0F2F8;
  --sidebar: #2E3A4D;
  --accent: #FF7B89;
  --accent2: #5CB89A;
  --accent3: #6CB4EE;
  --text: #3A3A50;
  --text-muted: #9BA0B8;
  --border: #E3E7F0;
  --success: #5CB89A;
  --warning: #FFA94D;
  --error: #FF7B89;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: 220px;
  background: var(--sidebar);
  position: fixed;
  top: 0; bottom: 0; left: 0;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-brand {
  padding: 20px 16px;
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-nav { padding: 12px 0; }

.nav-item {
  display: block;
  padding: 12px 20px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  background: rgba(255,123,137,0.08);
  color: #fff;
}

.nav-item.active {
  background: rgba(255,123,137,0.12);
  color: var(--accent);
  border-left-color: var(--accent);
}

.nav-section {
  padding: 16px 20px 8px;
  font-size: 11px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  letter-spacing: 1px;
}

/* ---- Main ---- */
.main {
  flex: 1;
  margin-left: 220px;
  padding: 20px 32px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.card-header {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ---- Table ---- */
.table-wrap { overflow-x: auto; }

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

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

th {
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-input);
}

tr:hover { background: rgba(255,123,137,0.03); }

/* ---- Forms ---- */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus { border-color: var(--accent); }

.form-control::placeholder { color: var(--text-muted); }

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

select.form-control {
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.form-inline {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
}

.btn-primary:hover { opacity: 0.9; color: #fff; }

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-success { border-color: var(--success); color: var(--success); }
.btn-success:hover { background: var(--success); color: #fff; }

.btn-warning { border-color: var(--warning); color: var(--warning); }
.btn-warning:hover { background: var(--warning); color: #fff; }

.btn-danger { border-color: var(--error); color: var(--error); }
.btn-danger:hover { background: var(--error); color: #fff; }

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.badge-success { background: rgba(92,184,154,0.12); color: var(--success); }
.badge-warning { background: rgba(255,169,77,0.12); color: var(--warning); }
.badge-error { background: rgba(255,123,137,0.12); color: var(--error); }
.badge-info { background: rgba(108,180,238,0.12); color: var(--accent3); }
.badge-default { background: rgba(155,160,184,0.1); color: var(--text-muted); }

/* ---- Pagination ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 20px;
}

.pagination a, .pagination span {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.pagination a:hover, .pagination .active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---- Modal ---- */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal.show { display: flex; }

.modal-content {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
}

.modal-header {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.modal-footer {
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ---- 图片上传区 ---- */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.upload-area:hover {
  border-color: var(--accent);
  background: rgba(255,123,137,0.03);
}

.upload-area .icon { font-size: 40px; margin-bottom: 10px; }
.upload-area .text { color: var(--text-muted); font-size: 14px; }

/* ---- 图片预览网格 ---- */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.image-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.image-item:hover { border-color: var(--accent); }

.image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-item .actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  display: flex;
  justify-content: space-between;
  opacity: 0;
  transition: opacity 0.2s;
}

.image-item:hover .actions { opacity: 1; }

.image-item.is-cover {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(255,123,137,0.3);
}

.image-item .cover-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}

/* ---- 价格档位 ---- */
.tier-list {
  border: 1px solid var(--border);
  border-radius: 6px;
}

.tier-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.tier-item:last-child { border-bottom: none; }

.tier-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

/* ---- Rich Text Editor ---- */
.ql-container {
  min-height: 300px;
  font-size: 14px;
  border: 1px solid var(--border) !important;
  border-radius: 0 0 6px 6px !important;
}

.ql-toolbar {
  border: 1px solid var(--border) !important;
  border-radius: 6px 6px 0 0 !important;
  background: var(--bg-input) !important;
}

.ql-editor { min-height: 300px; background: var(--bg-input); color: var(--text); }
.ql-editor.ql-blank::before { color: var(--text-muted); }

/* ---- Toast ---- */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 14px 24px;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
  z-index: 9999;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transform: translateX(120%);
  transition: transform 0.3s;
}

.toast.show { transform: translateX(0); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }

/* ---- Filters ---- */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-bar .form-control {
  width: auto;
  min-width: 150px;
}

/* ---- Status ---- */
.status-0 { color: var(--text-muted); }
.status-1 { color: var(--success); }
.status-2 { color: var(--warning); }

/* ---- Utilities ---- */
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.hidden { display: none !important; }

@media (max-width: 1024px) {
  .sidebar { width: 60px; }
  .sidebar-brand { text-align: center; }
  .nav-item { padding: 12px; text-align: center; }
  .nav-item span { display: none; }
  .nav-section { display: none; }
  .main { margin-left: 60px; padding: 16px; }
}