/* ==========================================================
   电话分组管理系统 · 后台样式
   ========================================================== */
:root {
  --bg:        #f4f6fa;
  --card:      #ffffff;
  --border:    #e3e8f0;
  --text:      #1f2937;
  --muted:     #7b8794;
  --primary:   #2f6fed;
  --primary-d: #2559c9;
  --sidebar:   #16233a;
  --sidebar-2: #1e2f4d;
  --ok:        #10a37f;
  --warn:      #e8a33d;
  --danger:    #e5484d;
  --radius:    10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px; flex: 0 0 220px;
  background: linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-2) 100%);
  color: #cbd5e1;
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 18px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand .logo {
  width: 36px; height: 36px; flex: 0 0 36px;
  display: grid; place-items: center;
  background: var(--primary); color: #fff;
  border-radius: 9px; font-size: 18px;
}
.brand strong { display: block; color: #fff; font-size: 14px; }
.brand small { color: #7f8ea8; font-size: 11px; letter-spacing: .4px; }

.nav { padding: 12px 10px; flex: 1; overflow: auto; }
.nav a {
  display: block; padding: 10px 14px; margin-bottom: 4px;
  color: #b6c2d4; border-radius: 8px; font-size: 14px;
}
.nav a:hover { background: rgba(255,255,255,.07); color: #fff; text-decoration: none; }
.nav a.active { background: var(--primary); color: #fff; font-weight: 600; }

.sidebar-foot {
  padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px; color: #8a99b0;
}
.sidebar-foot .who { color: #fff; margin-bottom: 4px; font-size: 13px; }
.sidebar-foot a { color: #8a99b0; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 16px 26px; position: sticky; top: 0; z-index: 5;
}
.topbar h1 { margin: 0; font-size: 18px; font-weight: 600; }
.content { padding: 22px 26px 60px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px;
}
.card > h2 {
  margin: 0 0 14px; font-size: 15px; font-weight: 600;
  padding-bottom: 10px; border-bottom: 1px solid var(--border);
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.card-head h2 { margin: 0; font-size: 15px; }

/* ---------- 统计块 ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px;
}
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 4px; letter-spacing: -.5px; }
.stat.accent { border-left: 3px solid var(--primary); }

/* ---------- 表单 ---------- */
.form-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; margin-bottom: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: 12px; color: var(--muted); }

input[type=text], input[type=password], input[type=number], input[type=date],
input[type=file], select, textarea {
  border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 11px; font: inherit; color: var(--text);
  background: #fff; outline: none; min-width: 150px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47,111,237,.13);
}
textarea { min-height: 90px; min-width: 320px; resize: vertical; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid transparent; border-radius: 8px;
  padding: 8px 16px; font: inherit; cursor: pointer;
  background: var(--primary); color: #fff;
  transition: background .15s, opacity .15s;
}
.btn:hover { background: var(--primary-d); text-decoration: none; color: #fff; }
.btn.ghost { background: #fff; color: var(--text); border-color: var(--border); }
.btn.ghost:hover { background: #f1f5fb; color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #c9373c; }
.btn.ok { background: var(--ok); }
.btn.ok:hover { background: #0d8a6a; }
.btn.sm { padding: 4px 10px; font-size: 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
table.grid th, table.grid td {
  padding: 10px 12px; text-align: left;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.grid th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 12px; }
table.grid tbody tr:hover { background: #fafcff; }
table.grid td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- 徽标 ---------- */
.tag {
  display: inline-block; padding: 2px 9px; border-radius: 20px;
  font-size: 12px; line-height: 1.6;
}
.tag.gray  { background: #eef1f6; color: #5b6878; }
.tag.green { background: #e4f7f1; color: #0b7f63; }
.tag.red   { background: #fdeaea; color: #c9373c; }
.tag.blue  { background: #e8f0fe; color: #2559c9; }
.tag.orange{ background: #fdf3e3; color: #a8700f; }

/* ---------- 提示 ---------- */
.alert { padding: 11px 15px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.alert-success { background: #e4f7f1; color: #0b7f63; border: 1px solid #b7ead9; }
.alert-error   { background: #fdeaea; color: #c9373c; border: 1px solid #f7c9cb; }
.alert-info    { background: #e8f0fe; color: #2559c9; border: 1px solid #c9dcfb; }
.alert-warn    { background: #fdf3e3; color: #a8700f; border: 1px solid #f5e0b8; }

.empty { padding: 40px 0; text-align: center; color: var(--muted); }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 14px 0 0; }
.pager a {
  min-width: 32px; text-align: center;
  padding: 5px 9px; border: 1px solid var(--border);
  border-radius: 7px; background: #fff; color: var(--text); font-size: 13px;
}
.pager a:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.pager a.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pager-info { margin-left: auto; color: var(--muted); font-size: 12px; }

/* ---------- 弹窗（原生 dialog） ---------- */
dialog {
  border: none; border-radius: 12px; padding: 0;
  width: min(560px, 92vw);
  box-shadow: 0 20px 50px rgba(16,24,40,.22);
}
dialog::backdrop { background: rgba(16,24,40,.45); }
dialog .dlg-head {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  font-weight: 600; font-size: 15px;
}
dialog .dlg-body { padding: 18px 20px; }
dialog .dlg-foot {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px; background: #fafbfd;
}
dialog .dlg-body .field { margin-bottom: 14px; }
dialog .dlg-body .field input, dialog .dlg-body .field select,
dialog .dlg-body .field textarea { width: 100%; }

/* ---------- 分组权限勾选 ---------- */
.checkbox-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px; max-height: 220px; overflow: auto;
  border: 1px solid var(--border); border-radius: 8px; padding: 12px;
}
.checkbox-grid label { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }

/* ---------- 登录页 ---------- */
.login-page {
  min-height: 100vh; display: grid; place-items: center;
  background: linear-gradient(135deg, #1e2f4d 0%, #2f6fed 120%);
  padding: 20px;
}
.login-box {
  width: min(380px, 100%); background: #fff;
  border-radius: 16px; padding: 34px 32px 28px;
  box-shadow: 0 24px 60px rgba(9,18,36,.32);
}
.login-box .logo-big {
  width: 52px; height: 52px; border-radius: 14px; margin: 0 auto 14px;
  display: grid; place-items: center; font-size: 26px;
  background: var(--primary); color: #fff;
}
.login-box h1 { margin: 0 0 4px; font-size: 19px; text-align: center; }
.login-box p.sub { margin: 0 0 22px; text-align: center; color: var(--muted); font-size: 13px; }
.login-box .field { margin-bottom: 14px; }
.login-box .field input { width: 100%; padding: 10px 13px; }
.login-box .btn { width: 100%; justify-content: center; padding: 11px; }
.login-box .tip { margin-top: 16px; text-align: center; color: var(--muted); font-size: 12px; }

code.hint {
  background: #f1f5fb; padding: 2px 6px; border-radius: 5px;
  font-family: Consolas, Monaco, monospace; font-size: 12px; color: #2559c9;
}

@media (max-width: 820px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex: none; }
  .nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .nav a { margin: 0; }
  .sidebar-foot { display: flex; justify-content: space-between; align-items: center; }
  .content, .topbar { padding-left: 14px; padding-right: 14px; }
}