:root {
  --bg: #eef1f4;
  --panel: #ffffff;
  --ink: #1c2430;
  --muted: #6b7785;
  --line: #d8dee6;
  --side: #15202b;
  --side-text: #c5d0db;
  --accent: #0f6e56;
  --danger: #b42318;
  --ok: #067647;
  --warn: #b54708;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); }
.hidden { display: none !important; }

.login-wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1000px 500px at 10% -10%, #d7ebe4 0%, transparent 55%),
    radial-gradient(800px 400px at 100% 0%, #dde5f0 0%, transparent 50%),
    var(--bg);
}
.login-card {
  width: 360px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 32px 28px;
  display: grid;
  gap: 12px;
}
.login-card h1 { margin: 0; font-size: 28px; letter-spacing: 0.04em; }
.login-card .sub { margin: -4px 0 8px; color: var(--muted); }
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input {
  border: 1px solid var(--line);
  padding: 10px 12px;
  font-size: 15px;
  color: var(--ink);
  background: #fff;
}
.login-card button, .btn {
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 14px;
}
.login-card button:hover, .btn:hover { filter: brightness(1.05); }
.err { color: var(--danger); min-height: 1.2em; margin: 0; font-size: 13px; }

.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100%; }
.side {
  background: var(--side);
  color: var(--side-text);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 18px; letter-spacing: 0.06em; }
.side nav { display: grid; gap: 4px; }
.nav {
  text-align: left;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
}
.nav:hover, .nav.active { background: rgba(255,255,255,0.08); color: #fff; }
.logout {
  margin-top: auto;
  border: 1px solid rgba(255,255,255,0.2);
  background: transparent;
  color: var(--side-text);
  padding: 8px 12px;
  cursor: pointer;
}

.main { padding: 20px 28px 40px; }
.top h2 { margin: 0 0 18px; font-size: 22px; font-weight: 600; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
}
.card .label { color: var(--muted); font-size: 13px; }
.card .value { font-size: 28px; font-weight: 650; margin-top: 6px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 14px 16px 18px;
  margin-bottom: 14px;
}
.panel h3 { margin: 0 0 12px; font-size: 15px; font-weight: 600; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; align-items: center; }
.filters input, .filters select {
  border: 1px solid var(--line);
  padding: 8px 10px;
  font-size: 13px;
  background: #fff;
}
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); }
.btn.sm { padding: 6px 10px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 550; font-size: 12px; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--line);
  font-size: 12px;
}
.tag.ok { color: var(--ok); border-color: #abefc6; background: #ecfdf3; }
.tag.fail { color: var(--danger); border-color: #fecdca; background: #fef3f2; }
.tag.pro { color: #175cd3; border-color: #b2ddff; background: #eff8ff; }

.bars { display: flex; align-items: flex-end; gap: 10px; height: 120px; padding-top: 8px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.bar {
  width: 100%;
  background: linear-gradient(180deg, #1a9b78, #0f6e56);
  min-height: 4px;
}
.bar-col span { font-size: 11px; color: var(--muted); }

.ops { display: flex; gap: 6px; flex-wrap: wrap; }
.empty { color: var(--muted); padding: 20px 0; }

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .app { grid-template-columns: 180px 1fr; }
}