/* =====================================================
 * admin.css - 后台管理页样式
 * ===================================================== */
:root {
  --bg: #f3f4f8;
  --card: #ffffff;
  --text: #1f2329;
  --muted: #8a919f;
  --primary: #4f46e5;
  --primary-light: #eef0fe;
  --primary-dark: #4338ca;
  --success: #16a34a;
  --danger: #e11d48;
  --border: #e6e8ef;
  --shadow: 0 8px 24px rgba(30, 34, 70, 0.08);
  --radius: 12px;
  --sidebar-w: 230px;
}
[data-theme="dark"] {
  --bg: #101218;
  --card: #1a1d27;
  --text: #e8eaf0;
  --muted: #7d8494;
  --primary: #7c83ff;
  --primary-light: #1e2130;
  --border: #2a2e3b;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
.hidden { display: none !important; }

/* ---------- 通用控件 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  padding: 8px 16px; border-radius: 9px; cursor: pointer; font-size: 14px;
  transition: all .2s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(1.1); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 13px; border-radius: 7px; }
.btn-block { width: 100%; }

.input, .select, .textarea {
  width: 100%; padding: 9px 12px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  font-size: 14px; outline: none; transition: border-color .2s; font-family: inherit;
}
.input:focus, .select:focus, .textarea:focus { border-color: var(--primary); }
.textarea { resize: vertical; min-height: 80px; line-height: 1.6; }
label.field-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 600; }
.form-group { margin-bottom: 16px; }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px;
}
.card-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }

/* ---------- 登录页 ---------- */
#login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #9333ea 100%);
  padding: 20px;
}
#login-page[data-theme="dark"] { background: linear-gradient(135deg, #1e1b4b, #312e81, #4c1d95); }
.login-card {
  background: var(--card); border-radius: 16px; padding: 36px 32px;
  width: 100%; max-width: 400px; box-shadow: 0 24px 60px rgba(0, 0, 0, .25);
}
.login-card .login-logo { font-size: 40px; text-align: center; margin-bottom: 8px; }
.login-card h1 { text-align: center; font-size: 22px; margin-bottom: 6px; }
.login-card .login-sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.login-hint {
  margin-top: 14px; font-size: 12px; color: var(--muted); text-align: center;
  background: var(--primary-light); padding: 8px; border-radius: 8px;
}

/* ---------- 后台布局 ---------- */
#app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); background: var(--card); border-right: 1px solid var(--border);
  position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column;
  flex-shrink: 0;
}
.sidebar .admin-brand { padding: 18px 20px; font-weight: 800; font-size: 17px; border-bottom: 1px solid var(--border); }
.sidebar .admin-brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; margin-top: 2px; }
.nav-list { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 14px; border: none; background: transparent; border-radius: 9px;
  cursor: pointer; font-size: 14px; color: var(--text); text-align: left; transition: all .2s;
}
.nav-item:hover { background: var(--primary-light); color: var(--primary); }
.nav-item.active { background: var(--primary); color: #fff; font-weight: 600; }
.sidebar-footer { padding: 12px 16px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 6px; }

.main { flex: 1; padding: 24px; min-width: 0; }
.page { display: none; animation: fadeIn .25s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.page-title { font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.page-sub { color: var(--muted); font-size: 13px; margin-bottom: 20px; }

/* ---------- 统计卡片 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { padding: 18px; }
.stat-card .stat-num { font-size: 30px; font-weight: 800; color: var(--primary); }
.stat-card .stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.stat-card .stat-emoji { font-size: 26px; }

/* ---------- 工具栏 ---------- */
.list-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.list-toolbar .spacer { flex: 1; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  text-align: left; vertical-align: middle;
}
.table th { color: var(--muted); font-weight: 600; font-size: 13px; background: var(--primary-light); white-space: nowrap; }
.table tr:hover td { background: var(--primary-light); }
.table .thumb { width: 48px; height: 48px; object-fit: cover; border-radius: 8px; background: #eee; }
[data-theme="dark"] .table .thumb { background: #232632; }
.table .actions { text-align: right; white-space: nowrap; }
.table .actions .btn + .btn { margin-left: 6px; }

/* ---------- 只读锁（GitHub 同步验证可用前） ---------- */
.ro-lock {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 12px 16px;
  margin-bottom: 18px;
  border: 1px solid #f0c36d;
  border-radius: 10px;
  background: #fff8e6;
  color: #8a6100;
  font-size: 14px;
  line-height: 1.6;
}
.ro-lock.hidden { display: none; }
body[data-theme="dark"] .ro-lock {
  background: #3a3220;
  border-color: #6b5b2a;
  color: #e8d48a;
}
/* 只读模式仅淡化「内容编辑」页面的按钮；GitHub 同步页（解锁入口）、修改密码页、退出登录/登录按钮保持正常可点 */
body.readonly-mode #page-overview button.btn,
body.readonly-mode #page-products button.btn,
body.readonly-mode #page-categories button.btn,
body.readonly-mode #page-site button.btn,
body.readonly-mode #page-data button.btn { opacity: .5; }
.tag-pill {
  display: inline-block; padding: 2px 8px; border-radius: 6px;
  background: var(--primary-light); color: var(--primary); font-size: 12px; margin-right: 4px;
}
.status-pill { padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.status-on { background: rgba(22, 163, 74, .12); color: var(--success); }
.status-off { background: rgba(153, 163, 175, .15); color: var(--muted); }

/* ---------- 富文本编辑器 ---------- */
.rte-wrap { border: 1px solid var(--border); border-radius: 9px; overflow: hidden; background: var(--card); }
.rte-toolbar {
  display: flex; flex-wrap: wrap; gap: 4px; padding: 8px; align-items: center;
  background: var(--primary-light); border-bottom: 1px solid var(--border);
}
.rte-toolbar .rte-btn {
  min-width: 30px; height: 30px; padding: 0 8px; border-radius: 6px;
  border: 1px solid transparent; background: transparent; color: var(--text);
  cursor: pointer; font-size: 13px; transition: all .15s;
}
.rte-toolbar .rte-btn:hover { background: var(--card); border-color: var(--border); }
.rte-toolbar select {
  height: 30px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); font-size: 12px; padding: 0 4px;
}
.rte-area {
  min-height: 220px; max-height: 420px; overflow-y: auto; padding: 14px;
  outline: none; font-size: 14.5px; line-height: 1.8;
}
.rte-area:empty::before { content: "在这里输入商品详情… 支持从 Word 直接复制粘贴"; color: var(--muted); }
.rte-area p { margin-bottom: 8px; }
.rte-area ul, .rte-area ol { margin: 6px 0 10px; padding-left: 22px; }
.rte-area blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 8px 14px; margin: 10px 0; border-radius: 0 8px 8px 0; color: var(--muted); }
.rte-area img { max-width: 100%; border-radius: 8px; margin: 6px 0; }

/* ---------- 图片上传预览 ---------- */
.img-upload-row { display: flex; gap: 12px; align-items: flex-start; flex-wrap: wrap; }
.img-upload-row .img-preview {
  width: 96px; height: 96px; object-fit: cover; border-radius: 10px;
  border: 1px solid var(--border); background: #eee; flex-shrink: 0;
}
[data-theme="dark"] .img-upload-row .img-preview { background: #232632; }
.img-btns { display: flex; flex-direction: column; gap: 8px; }

/* ---------- 分类管理 ---------- */
.cat-list { display: flex; flex-direction: column; gap: 10px; }
.cat-item {
  display: flex; align-items: center; gap: 10px; padding: 12px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--card);
}
.cat-item .cat-name { flex: 1; font-weight: 600; }
.cat-item .cat-count { color: var(--muted); font-size: 13px; }

/* ---------- 提示信息框 ---------- */
.alert { padding: 12px 16px; border-radius: 10px; font-size: 13.5px; margin-bottom: 16px; line-height: 1.7; }
.alert.info { background: var(--primary-light); color: var(--primary); border: 1px solid rgba(79, 70, 229, .25); }
.alert.warn { background: rgba(245, 158, 11, .1); color: #b45309; border: 1px solid rgba(245, 158, 11, .3); }
.alert.danger { background: rgba(225, 29, 72, .08); color: var(--danger); border: 1px solid rgba(225, 29, 72, .25); }
.alert.success { background: rgba(22, 163, 74, .1); color: var(--success); border: 1px solid rgba(22, 163, 74, .25); }

/* ---------- 弹窗 ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100; background: rgba(0, 0, 0, .55);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--card); border-radius: 14px; width: 100%; max-width: 760px;
  max-height: 90vh; overflow: hidden; display: flex; flex-direction: column;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .3);
  transform: translateY(16px); transition: transform .25s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-head {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-head h3 { font-size: 16px; font-weight: 700; }
.modal-close { width: 30px; height: 30px; border: none; background: transparent; font-size: 18px; cursor: pointer; color: var(--muted); border-radius: 6px; }
.modal-close:hover { background: var(--primary-light); color: var(--text); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ---------- Toast ---------- */
#toast-wrap {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  z-index: 300; display: flex; flex-direction: column; gap: 8px; align-items: center;
}
.toast {
  background: #1f2329; color: #fff; padding: 10px 20px; border-radius: 10px;
  font-size: 14px; box-shadow: 0 8px 24px rgba(0, 0, 0, .2); animation: toastIn .3s ease;
  max-width: 90vw; white-space: pre-line;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  #app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .nav-list { display: flex; overflow-x: auto; padding: 8px; }
  .nav-item { white-space: nowrap; }
  .sidebar-footer { flex-direction: row; align-items: center; justify-content: center; }
  .main { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
}