/* ============================================================
   慧师投研 · 管理后台样式
   简洁浅色管理后台：侧边栏 + 顶栏 + 内容面板布局
   ============================================================ */

:root {
  --primary: #2563eb;
  --primary-weak: #eff6ff;
  --danger: #dc2626;
  --success-bg: #ecfdf5;
  --success-text: #047857;
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --sidebar-bg: #eef1f5;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
}

.hidden { display: none !important; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 28px 0 !important; }

/* ═══════════ 通用按钮 / 徽章 ═══════════ */

.btn {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.btn:hover { background: #f3f4f6; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-danger { color: var(--danger); border-color: #fecaca; }
.btn-danger:hover { background: #fef2f2; }
.btn-sm { padding: 3px 10px; font-size: 12px; }
.btn-block { width: 100%; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 12px;
}
.badge-ok { background: var(--success-bg); color: var(--success-text); }
.badge-off { background: #f3f4f6; color: var(--muted); }

/* ═══════════ 登录页 ═══════════ */

.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eff6ff 0%, #f5f6f8 60%, #eef1f5 100%);
}
.login-card {
  width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .06);
}
.login-card .brand { font-size: 24px; text-align: center; }
.login-sub { text-align: center; color: var(--muted); margin: 6px 0 26px; font-size: 13px; }
.login-card label { display: block; margin-bottom: 16px; font-size: 13px; color: var(--muted); }
.login-card input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 12px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
}
.login-card input:focus { border-color: var(--primary); }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 8px; }

/* ═══════════ 后台布局：侧边栏 + 主区域 ═══════════ */

.admin-view { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 0 0 16px;
}
.sidebar .brand {
  padding: 18px 20px;
  font-size: 18px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}
.sidebar nav a {
  display: block;
  padding: 11px 20px;
  color: var(--text);
  text-decoration: none;
  border-left: 3px solid transparent;
  font-size: 14px;
}
.sidebar nav a:hover { background: rgba(255, 255, 255, .6); }
.sidebar nav a.active {
  background: var(--card);
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
}

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h2 { font-size: 17px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

#page-content { padding: 20px; flex: 1; }

/* ═══════════ 面板通用 ═══════════ */

.panel { max-width: 1100px; }

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.search-input {
  width: 260px;
  padding: 6px 10px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
}
.search-input:focus { border-color: var(--primary); }
.toolbar select {
  padding: 6px 8px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
}
.tab-group { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.tab-group .btn { border: none; border-radius: 0; }
.tab-group .tab-btn.active { background: var(--primary); color: #fff; }

.pager { display: flex; align-items: center; gap: 12px; margin-top: 14px; }

/* ═══════════ 表格 ═══════════ */

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.data-table th {
  background: #fafbfc;
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td { padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #f9fafb; }
.data-table .ops { white-space: nowrap; display: flex; gap: 6px; }

.plan-select {
  padding: 3px 6px;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--card);
}

/* ═══════════ 表单卡片（模型配置 / 系统配置） ═══════════ */

.form-card {
  max-width: 560px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}
.form-card label { display: block; margin-bottom: 14px; font-size: 13px; color: var(--muted); }
.form-card input[type="text"],
.form-card input[type="number"],
.form-card input[type="password"] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 8px 10px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
}
.form-card input:focus { border-color: var(--primary); }
.form-card .checkbox-line { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); }
.form-card .checkbox-line input { width: 15px; height: 15px; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }

/* ═══════════ 健康检查结果 ═══════════ */

.health-wrap { margin-top: 16px; }
.health-card {
  max-width: 560px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  line-height: 1.9;
}
.health-card.health-ok { border-left: 4px solid var(--success-text); }
.health-card.health-bad { border-left: 4px solid var(--danger); }

/* ═══════════ 数据源健康 ═══════════ */

.snapshot-card {
  margin-top: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}

/* ═══════════ 大师模板 ═══════════ */

.master-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}
.master-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
}
.master-item summary::-webkit-details-marker { display: none; }
.master-item summary:hover { background: #f9fafb; }
.master-name { font-weight: 600; font-size: 15px; min-width: 90px; }
.master-detail { padding: 14px 16px; border-top: 1px solid var(--border); }
.master-detail h4 { margin: 10px 0 8px; font-size: 13px; color: var(--muted); }
.master-detail h4:first-child { margin-top: 0; }

.json-view {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 320px;
  overflow: auto;
}

/* ═══════════ 系统配置 ═══════════ */

.sys-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}
.sys-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
}
.sys-key { font-weight: 600; font-size: 14px; min-width: 160px; }
.sys-head .muted { flex: 1; }
.sys-body { padding: 0 16px 16px; border-top: 1px solid var(--border); }
.sys-body textarea {
  width: 100%;
  margin: 12px 0 8px;
  padding: 10px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  border: 1px solid var(--border);
  border-radius: 6px;
  resize: vertical;
  outline: none;
}
.sys-body textarea:focus { border-color: var(--primary); }

/* ═══════════ Toast 提示 ═══════════ */

.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: #111827;
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  transition: all .25s;
  z-index: 999;
  max-width: 80vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-err { background: var(--danger); }

/* ═══════════ 窄屏适配 ═══════════ */

@media (max-width: 860px) {
  .admin-view { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  .sidebar .brand { padding: 12px 16px; }
  .sidebar nav { display: flex; flex-wrap: wrap; }
  .sidebar nav a { border-left: none; border-bottom: 2px solid transparent; }
  .sidebar nav a.active { border-bottom-color: var(--primary); }
  .data-table { font-size: 12px; }
}