/* ============================================================
   站点监测面板 — 设计系统（参考 dns.ruonan.com 风格）
   冷色主调 / 卡片化 / 大数字指标 / 圆角浅阴影 / 留白充足
   ============================================================ */
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --line: #e8ecf5;
  --text: #171e2e;
  --muted: #6b7690;
  --primary: #3b5bfd;
  --primary-dk: #2a44d8;
  --primary-grad: linear-gradient(135deg, #4f6ef7 0%, #2f4fe0 100%);
  --ok: #12b76a;
  --ok-bg: #e9faf1;
  --warn: #f59e0b;
  --warn-bg: #fef5e7;
  --bad: #ef4444;
  --bad-bg: #fdeeee;
  --down: #64748b;
  --down-bg: #eef1f5;
  --radius: 14px;
  --shadow: 0 2px 16px rgba(38, 56, 132, .07);
  --shadow-lg: 0 12px 40px rgba(38, 56, 132, .14);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  background:
    radial-gradient(1200px 400px at 80% -10%, rgba(79, 110, 247, .07), transparent 60%),
    radial-gradient(900px 360px at 0% -5%, rgba(18, 183, 106, .05), transparent 55%),
    var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: none; opacity: .85; }

/* ---------- 顶部导航 ---------- */
.topnav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  height: 60px; display: flex; align-items: center; gap: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: var(--primary-grad);
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(59, 91, 253, .35);
}
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.brand-sub { font-size: 11px; color: var(--muted); letter-spacing: 1px; margin-top: 4px; }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.uname { color: var(--muted); font-size: 13px; }
.nav-link { color: var(--muted); font-size: 13px; padding: 6px 12px; border-radius: 8px; }
.nav-link:hover { background: #f0f3fa; color: var(--text); }

.wrap { max-width: 1280px; margin: 26px auto 40px; padding: 0 24px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; }
.card h2 { font-size: 16px; font-weight: 700; }
.card-sub { color: var(--muted); font-size: 12px; }
.card .hint { color: var(--muted); font-size: 12px; margin-top: 8px; }

/* ---------- 统计指标卡 ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.metric {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease;
}
.metric:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.metric::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px; background: var(--primary);
}
.metric.total::before { background: linear-gradient(180deg, #4f6ef7, #2f4fe0); }
.metric.ok::before { background: linear-gradient(180deg, #21d686, #12b76a); }
.metric.blocked::before { background: linear-gradient(180deg, #f87171, #dc2626); }
.metric.dns::before { background: linear-gradient(180deg, #fbbf24, #f59e0b); }
.metric.down::before { background: linear-gradient(180deg, #94a3b8, #64748b); }
.metric.cert::before { background: linear-gradient(180deg, #f59e0b, #d97706); }
.metric .m-num { font-size: 30px; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; }
.metric .m-lbl { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.metric.ok .m-num { color: var(--ok); }
.metric.blocked .m-num { color: var(--bad); }
.metric.dns .m-num { color: var(--warn); }
.metric.down .m-num { color: var(--down); }
.metric.cert .m-num { color: var(--warn); }

/* ---------- 表单 ---------- */
.field { display: block; margin-bottom: 14px; }
.field span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input[type=text], input[type=password], textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 10px;
  padding: 11px 14px; font-size: 14px; font-family: inherit;
  outline: none; background: #fafbfd;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 91, 253, .12);
  background: #fff;
}
textarea { min-height: 104px; resize: vertical; line-height: 1.7; }
.inp-select {
  border: 1px solid var(--line); border-radius: 10px;
  padding: 9px 12px; font-size: 13.5px; font-family: inherit;
  background: #fafbfd; color: var(--text); outline: none;
  cursor: pointer;
}
.inp-select:focus { border-color: var(--primary); background: #fff; }
.inp-select.inp-sm { padding: 5px 8px; font-size: 12.5px; border-radius: 8px; }

/* 添加域名布局 */
.add-row { display: flex; gap: 16px; }
.add-row textarea { flex: 1; min-height: 120px; }
.add-side { width: 200px; flex-shrink: 0; display: flex; flex-direction: column; }
.side-lbl { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.add-side .hint { margin-top: 8px; }
.add-side .btn-block { margin-top: auto; }

/* 批量操作 */
.batch-card { padding-bottom: 16px; }
.batch-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.batch-row label { font-size: 13.5px; color: var(--text); }
.batch-row .hint { margin: 0; }
.batch-row .btn { margin: 0; }

.btn {
  display: inline-block; border: none; border-radius: 9px;
  padding: 9px 18px; font-size: 14px; cursor: pointer; font-family: inherit;
  background: #eef1f8; color: var(--text);
  transition: background .15s, transform .1s;
}
.btn:hover { background: #e3e8f4; }
.btn:active { transform: scale(.98); }
.btn-primary {
  background: var(--primary-grad); color: #fff;
  box-shadow: 0 4px 14px rgba(59, 91, 253, .3);
}
.btn-primary:hover { background: var(--primary-grad); filter: brightness(1.06); }
.btn-sm { padding: 4px 11px; font-size: 12px; border-radius: 7px; }
.btn-danger { background: var(--bad-bg); color: var(--bad); }
.btn-danger:hover { background: #fbdcdc; }
.btn-block { width: 100%; }

/* ---------- 表格 ---------- */
table.list { width: 100%; border-collapse: collapse; }
table.list th {
  text-align: left; font-size: 12px; color: var(--muted); font-weight: 600;
  padding: 10px 10px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.list td { padding: 11px 10px; border-bottom: 1px solid #f0f3f8; vertical-align: middle; }
table.list tr:hover td { background: #f8faff; }
td .dom { font-weight: 600; font-size: 14px; }
td .dom a { color: var(--text); }
td .dom a:hover { color: var(--primary); }
.cell-muted { color: var(--muted); font-size: 12px; }
input[type=checkbox] { width: 15px; height: 15px; accent-color: var(--primary); cursor: pointer; }
.ivform { display: inline; }

/* ---------- 状态徽章 ---------- */
.pill {
  display: inline-block; padding: 3px 12px; border-radius: 50px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.pill.st-ok { background: var(--ok-bg); color: var(--ok); }
.pill.st-blocked { background: var(--bad-bg); color: var(--bad); }
.pill.st-dns { background: var(--warn-bg); color: var(--warn); }
.pill.st-cert { background: var(--warn-bg); color: var(--warn); }
.pill.st-down { background: var(--down-bg); color: #475569; }
.pill.st-pending { background: var(--down-bg); color: var(--muted); }

/* 节点状态点 */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 2px; }
.dot.c-ok { background: var(--ok); }
.dot.c-fail { background: var(--bad); }
.dot.c-dns { background: var(--warn); }
.dot.c-pending { background: #cbd5e1; }

/* 列表内节点明细行 */
tr.noderow > td {
  background: linear-gradient(90deg, #f7f9ff 0%, #fbfcff 100%);
  padding: 8px 10px 9px 30px;
  font-size: 12.5px;
  color: var(--muted);
  border-bottom: 1px solid #eef1f8;
}
tr.noderow .nname { color: var(--text); font-size: 13px; margin-right: 2px; }
tr.noderow .nodeip { color: var(--muted); font-size: 12px; }
tr.noderow .seg { margin-left: 14px; }
tr.noderow .seg b { color: var(--text); }
tr.noderow .finalurl { color: var(--primary); word-break: break-all; }
tr.noderow .c-ok-txt { color: var(--ok); }
tr.noderow .btn-sm { margin-left: 14px; vertical-align: middle; }

/* ---------- 过滤条 ---------- */
.filterbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.chip {
  display: inline-block; padding: 6px 15px; border-radius: 50px;
  background: #fff; border: 1px solid var(--line); font-size: 13px; color: var(--muted);
  transition: all .15s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow); }
.chip.on { background: var(--primary-grad); border-color: transparent; color: #fff; box-shadow: 0 3px 10px rgba(59, 91, 253, .3); }
.searchbox { margin-left: auto; display: flex; gap: 8px; }
.searchbox input { width: 220px; }

/* ---------- 提示 ---------- */
.flash-ok, .flash-warn {
  padding: 11px 16px; border-radius: 10px; font-size: 13px; margin-bottom: 16px;
  border: 1px solid transparent;
}
.flash-ok { background: var(--ok-bg); color: #0e9355; border-color: #bfeeda; }
.flash-warn { background: var(--warn-bg); color: #b45309; border-color: #fae3b8; }

/* ---------- 编辑弹窗 ---------- */
.modal-mask {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: rgba(23, 30, 46, .45);
  align-items: center; justify-content: center;
}
.modal {
  width: 400px; background: #fff; border-radius: 16px;
  padding: 22px 24px; box-shadow: var(--shadow-lg);
}
.modal-head { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

/* ---------- 认证页 ---------- */
.auth-body {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(900px 420px at 20% 0%, rgba(79, 110, 247, .14), transparent 60%),
    radial-gradient(700px 380px at 85% 15%, rgba(18, 183, 106, .10), transparent 55%),
    var(--bg);
}
.auth-card {
  width: 400px; background: #fff; border-radius: 18px;
  padding: 38px 34px; box-shadow: var(--shadow-lg);
}
.auth-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.auth-logo .brand-mark { width: 36px; height: 36px; border-radius: 10px; }
.auth-logo h1 { font-size: 21px; }
.auth-sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.auth-foot { text-align: center; margin-top: 18px; font-size: 13px; color: var(--muted); }

/* ---------- 详情页 ---------- */
.nodegrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 14px; }
.nodecard { border: 1px solid var(--line); border-radius: 12px; padding: 16px; background: #fbfcfe; }
.nodecard .nc-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.nodecard .nc-head .name { font-weight: 700; font-size: 15px; }
.nodecard .nc-head .region {
  font-size: 11px; padding: 2px 8px; border-radius: 50px;
  background: #eef1f6; color: var(--muted);
}
.kv { display: flex; font-size: 13px; margin-bottom: 7px; }
.kv .k { width: 88px; color: var(--muted); flex-shrink: 0; }
.kv .v { word-break: break-all; }
.chain { margin: 8px 0 0 0; padding-left: 22px; font-size: 12px; color: var(--muted); }
.chain li { margin-bottom: 4px; word-break: break-all; }
.chain .code { font-weight: 700; color: var(--primary); }
.chain .last { color: var(--ok); font-weight: 700; }
.bad-ip { color: var(--bad); font-weight: 600; }
.error-line { color: var(--bad); font-size: 13px; margin-bottom: 7px; }

pre.src {
  background: #10162a; color: #d7dded;
  border-radius: 12px; padding: 16px; overflow: auto;
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  font-size: 12px; line-height: 1.6;
  max-height: 70vh; white-space: pre-wrap; word-break: break-all;
}

.spark { width: 100%; height: 70px; display: block; margin: 6px 0 14px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.pager { display: flex; gap: 8px; margin-top: 16px; justify-content: center; }
.pager a, .pager span {
  padding: 6px 13px; border-radius: 9px; background: #fff; border: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}
.pager a:hover { border-color: var(--primary); color: var(--primary); }
.pager .on { background: var(--primary-grad); color: #fff; border-color: transparent; }
.pager .dis { opacity: .4; pointer-events: none; }

@media (max-width: 820px) {
  .add-row { flex-direction: column; }
  .add-side { width: 100%; }
  .searchbox { margin-left: 0; width: 100%; }
  .searchbox input { flex: 1; width: auto; }
  .nav-inner { padding: 0 16px; }
  .wrap { padding: 0 16px; }
}