:root {
  --bg: #0e1117;
  --panel: #161b22;
  --panel-head: #1b222c;
  --border: #262d38;
  --text: #d7dde5;
  --muted: #7d8794;
  --up: #f04a4a;
  --down: #21b573;
  /* 品牌色：取自 logo 的藏蓝底 + 青色描边 */
  --accent: #1877d2;
  --brand-navy: #16305e;
  --brand-cyan: #33e1f5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.5 "Microsoft YaHei", "Segoe UI", sans-serif;
}

/* ---------------------------------------------------------- 顶部状态栏 */

.topbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 18px;
  background: var(--panel-head);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
}

/* ------------------------------------------------------------ 品牌标识 */

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  /* 品牌区不参与挤压，否则窄屏时网站名会被折行 */
  flex: none;
}

/* logo 原图是白底，所以放在白色圆角砌块里，在深色顶栏上读起来像应用图标 */
.brand-logo {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 0 0 1px var(--border), 0 0 12px rgba(51, 225, 245, 0.15);
}

.brand h1 {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

/* 副标题用细竖线隔开，不抢主标题的注意力 */
.brand-sub {
  padding-left: 10px;
  border-left: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  white-space: nowrap;
}

/* 窄屏优先保住网站名和运行状态，副标题先让位 */
@media (max-width: 980px) {
  .brand-sub { display: none; }
}

.status {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  /* 状态项也不允许折行 */
  flex-wrap: nowrap;
  white-space: nowrap;
}

.status b { color: var(--text); font-weight: 600; }
.dot.ok { color: var(--down); }
.dot.bad { color: var(--up); }

.status button {
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 12px;
}
.status button:hover { filter: brightness(1.12); }

/* ------------------------------------------------------------ 三栏看板 */

.board {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 10px;
  min-height: 0;
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.panel-head {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--panel-head);
  border-bottom: 1px solid var(--border);
}

.panel-head h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.count {
  padding: 1px 8px;
  border-radius: 10px;
  background: #2b3341;
  color: var(--muted);
  font-size: 11px;
}

.filter {
  margin-left: auto;
  width: 130px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #0f141b;
  color: var(--text);
  font-size: 12px;
}
.filter:focus { outline: 1px solid var(--accent); }

.panel-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

/* -------------------------------------------------------------- 表格 */

table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
  font-size: 12px;
}

thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 7px 6px;
  background: #1e242e;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-weight: 500;
  text-align: left;
}

tbody td {
  padding: 5px 6px;
  border-bottom: 1px solid #1d232c;
}

tbody tr:hover { background: #1c2331; }

th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }

.pos { color: var(--up); }
.neg { color: var(--down); }
.long { color: var(--up); }
.short { color: var(--down); }
.on { color: var(--down); }
.off { color: var(--muted); }

/* 数据变化时闪一下，便于看出实时更新 */
@keyframes flash { from { background: #33415a; } to { background: transparent; } }
tr.flash { animation: flash 0.7s ease-out; }

.empty {
  margin: 0;
  padding: 28px 0;
  color: var(--muted);
  text-align: center;
}

/* ---------------------------------------------------------- 底部日志 */

.logbar {
  flex: none;
  height: 96px;
  display: flex;
  gap: 12px;
  padding: 8px 14px;
  background: var(--panel-head);
  border-top: 1px solid var(--border);
  font-size: 12px;
}

.log-title { flex: none; color: var(--muted); }

#logs {
  flex: 1;
  overflow-y: auto;
  color: var(--muted);
  font-family: Consolas, monospace;
}

#logs div { padding: 1px 0; }

@media (max-width: 1200px) {
  .board { grid-template-columns: 1fr; }
  body { height: auto; }
  .panel-body { max-height: 320px; }
}