:root {
  --bg: #e8f1f6;
  --bg-deep: #0b3a52;
  --panel: #ffffff;
  --ink: #123041;
  --muted: #5a7383;
  --line: #d3e2eb;
  --brand: #0d6e8c;
  --brand-2: #1494b8;
  --accent: #1a9f7a;
  --danger: #c0392b;
  --warn: #c47a12;
  --shadow: 0 10px 30px rgba(11, 58, 82, 0.08);
  --radius: 14px;
  --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 0% -10%, rgba(20, 148, 184, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(26, 159, 122, 0.12), transparent 50%),
    linear-gradient(180deg, #f3f8fb 0%, var(--bg) 100%);
  min-height: 100vh;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-2); }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: linear-gradient(180deg, #0b3a52 0%, #0e4a66 55%, #0c5a6e 100%);
  color: #e8f4f8;
  padding: 1.25rem 0.9rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  flex-shrink: 0;
}
.sidebar .logo {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.4rem 0.6rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 1rem;
}
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #1db5d8, #1a9f7a);
  font-weight: 700; color: #fff; font-size: 1.1rem;
}
.logo h1 { font-size: 1rem; margin: 0; line-height: 1.3; }
.logo p { margin: 0.15rem 0 0; font-size: 0.72rem; opacity: 0.7; }

.nav-group { margin: 0.8rem 0 0.3rem; padding: 0 0.7rem; font-size: 0.72rem; letter-spacing: 0.06em; opacity: 0.55; text-transform: uppercase; }
.nav-link {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.55rem 0.7rem; border-radius: 10px;
  color: rgba(255,255,255,0.82); margin: 0.15rem 0;
  transition: background .15s ease, color .15s ease;
}
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
}
.nav-link .ico { width: 1.2rem; text-align: center; opacity: 0.9; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1rem 1.5rem;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.topbar-title { font-size: 1.15rem; font-weight: 650; margin: 0; }
.topbar-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.user-chip {
  display: flex; align-items: center; gap: 0.5rem;
  background: #fff; border: 1px solid var(--line);
  border-radius: 999px; padding: 0.35rem 0.8rem;
  font-size: 0.85rem; color: var(--muted);
}
.content { padding: 1.25rem 1.5rem 2rem; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}
.card h2, .card h3 { margin: 0 0 0.85rem; font-size: 1.05rem; }
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.75rem; margin-bottom: 0.9rem; flex-wrap: wrap;
}
.card-head h2, .card-head h3 { margin: 0; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1rem;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}
.stat .label { color: var(--muted); font-size: 0.82rem; margin-bottom: 0.35rem; }
.stat .value { font-family: var(--mono); font-size: 1.25rem; font-weight: 650; letter-spacing: -0.02em; }
.stat .value.pos { color: var(--accent); }
.stat .value.neg { color: var(--danger); }
.stat .value.brand { color: var(--brand); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  border: 1px solid var(--line);
  background: #fff; color: var(--ink);
  border-radius: 10px; padding: 0.45rem 0.9rem;
  font-size: 0.9rem; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(11,58,82,.1); }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; border-color: transparent; }
.btn.danger { background: #fff5f4; color: var(--danger); border-color: #f0c7c2; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 0.3rem 0.65rem; font-size: 0.82rem; }
.btn.block { width: 100%; }

.table-wrap { overflow-x: auto; }
table.data {
  width: 100%; border-collapse: collapse; font-size: 0.9rem;
}
table.data th, table.data td {
  padding: 0.65rem 0.55rem; border-bottom: 1px solid var(--line);
  text-align: left; white-space: nowrap;
}
table.data th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }
table.data tr:hover td { background: #f6fbfd; }
table.data .num { font-family: var(--mono); text-align: right; }
.badge {
  display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px;
  font-size: 0.75rem; background: #e8f4f8; color: var(--brand);
}
.badge.ok { background: #e6f7f1; color: var(--accent); }
.badge.warn { background: #fff4e5; color: var(--warn); }
.badge.off { background: #f0f0f0; color: #777; }

.filters {
  display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: end;
  margin-bottom: 0.9rem;
}
.filters label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.78rem; color: var(--muted); }
.filters .filter-actions { display: flex; gap: 0.4rem; align-items: center; padding-bottom: 0.1rem; }
.muted { color: var(--muted); font-weight: 500; font-size: 0.9rem; }
.pager {
  display: flex; justify-content: space-between; align-items: center;
  gap: 0.75rem; margin-top: 0.85rem; flex-wrap: wrap;
  color: var(--muted); font-size: 0.85rem;
}
.pager-links { display: flex; gap: 0.4rem; }
.context-banner {
  background: #e8f4f8; border: 1px solid #c5e3ef; color: var(--brand);
  border-radius: 10px; padding: 0.55rem 0.9rem; margin-bottom: 0.9rem;
  font-size: 0.88rem; display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap;
}
.filters input, .filters select,
.form-grid input, .form-grid select, .form-grid textarea {
  border: 1px solid var(--line); border-radius: 10px;
  padding: 0.5rem 0.7rem; font: inherit; color: var(--ink); background: #fff;
  min-width: 140px;
}
.form-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
}
.form-grid label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.82rem; color: var(--muted); }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid h3 { grid-column: 1 / -1; margin: 0.4rem 0 0; font-size: 0.95rem; color: var(--ink); }
.form-actions { display: flex; gap: 0.6rem; margin-top: 0.5rem; flex-wrap: wrap; }

.alert {
  padding: 0.75rem 1rem; border-radius: 10px; margin-bottom: 1rem; font-size: 0.9rem;
}
.alert.error { background: #fff0ee; color: var(--danger); border: 1px solid #f0c7c2; }
.alert.success { background: #eaf8f3; color: #0f7a5a; border: 1px solid #b7e5d4; }
.alert.info { background: #eef7fb; color: var(--brand); border: 1px solid #c5e3ef; }

.auth-body {
  min-height: 100vh; display: grid; place-items: center; padding: 1.5rem;
  background:
    linear-gradient(160deg, rgba(11,58,82,0.92), rgba(13,110,140,0.85)),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.auth-card {
  width: min(420px, 100%);
  background: #fff; border-radius: 18px; padding: 1.6rem;
  box-shadow: 0 24px 60px rgba(0,0,0,0.25);
}
.install-card { width: min(560px, 100%); }
.auth-brand { display: flex; gap: 0.9rem; align-items: center; margin-bottom: 1.2rem; }
.auth-brand h1 { margin: 0; font-size: 1.2rem; }
.auth-brand p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.85rem; }

.modal-backdrop {
  position: fixed; left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(11,58,82,0.55);
  display: none; align-items: center; justify-content: center;
  z-index: 9999; padding: 1rem;
}
.modal-backdrop.open { display: flex !important; }
.modal {
  background: #fff; border-radius: 16px; width: min(640px, 100%);
  max-height: 90vh; overflow: auto; padding: 1.25rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
  animation: rise .2s ease;
  position: relative; z-index: 10000;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.modal h3 { margin: 0 0 1rem; }

.chart-bars {
  display: flex; align-items: flex-end; gap: 0.6rem;
  height: 160px; padding-top: 0.5rem;
}
.chart-bars .bar-group {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 0.35rem; height: 100%;
}
.chart-bars .bars { flex: 1; width: 100%; display: flex; align-items: flex-end; gap: 3px; }
.chart-bars .bar { flex: 1; border-radius: 4px 4px 0 0; min-height: 2px; }
.chart-bars .bar.r { background: var(--accent); }
.chart-bars .bar.p { background: var(--brand-2); opacity: 0.75; }
.chart-bars .lbl { font-size: 0.7rem; color: var(--muted); }

.empty { text-align: center; color: var(--muted); padding: 2rem 1rem; }

.mobile-toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: 0.4rem 0.7rem; cursor: pointer;
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed; left: 0; top: 0; z-index: 50;
    transform: translateX(-105%); transition: transform .2s ease;
  }
  .sidebar.open { transform: none; }
  .mobile-toggle { display: inline-flex; }
  .content { padding: 1rem; }
  .topbar { padding: 0.85rem 1rem; }
}