/* 颜色取自 dataviz 参考调色板; 图表只用 series-1(蓝), 计量条用状态色 */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-1-hover: #5598e7;
  --track: #cde2fb;
  --good: #0ca30c;
  --good-text: #006300;
  --warning: #fab219;
  --critical: #d03b3b;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --wash: rgba(11, 11, 11, 0.05);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5; --series-1-hover: #6da7ec; --track: #184f95;
    --good-text: #0ca30c; --accent: #3987e5; --wash: rgba(255, 255, 255, 0.06);
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.10);
  --series-1: #3987e5; --series-1-hover: #6da7ec; --track: #184f95;
  --good-text: #0ca30c; --accent: #3987e5; --wash: rgba(255, 255, 255, 0.06);
  --shadow: none;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2 { margin: 0 0 8px; font-weight: 600; }
h1 { font-size: 20px; }
h2 { font-size: 15px; }
.muted { color: var(--ink-2); }
.small { font-size: 12px; }
.label { color: var(--ink-2); font-size: 13px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; letter-spacing: 0.2px; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }

/* 按钮 & 表单 */
.btn {
  font: inherit; cursor: pointer; border-radius: 8px; padding: 7px 14px;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink);
}
.btn:hover { background: var(--wash); }
.btn.primary { background: var(--accent); border-color: transparent; color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--wash); color: var(--ink); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.6; cursor: default; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

input {
  font: inherit; color: var(--ink); background: var(--page);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; width: 100%;
}
input:focus { outline: none; border-color: var(--accent); }
label { display: grid; gap: 6px; color: var(--ink-2); font-size: 13px; }

/* 登录 */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(360px, 100%); display: grid; gap: 14px; padding: 28px; }
.login-card h1 { margin: 6px 0 0; }
.form-error { min-height: 18px; margin: 0; color: var(--critical); font-size: 13px; }

/* 顶栏 */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px; border-bottom: 1px solid var(--border); background: var(--surface);
}
.topbar-right { display: flex; align-items: center; gap: 4px; }

.wrap { max-width: 980px; margin: 0 auto; padding: 24px; display: grid; gap: 16px; }

/* 主数字 + 计量条 */
.hero-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.hero-value { font-size: 48px; font-weight: 600; line-height: 1.15; margin: 4px 0; }
.hero-unit { font-size: 18px; font-weight: 500; color: var(--ink-2); margin-left: 6px; }
.meter { margin-top: 16px; height: 10px; border-radius: 5px; background: var(--track); overflow: hidden; }
.meter-fill { height: 100%; width: 0; border-radius: 5px; background: var(--accent); transition: width 0.4s ease; }
.meter-fill.warn { background: var(--warning); }
.meter-fill.crit { background: var(--critical); }
#meter-note { margin: 8px 0 0; }

.status-list { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.status { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-2); }
.status .icon { width: 16px; height: 16px; flex: none; }
.status.ok .icon { color: var(--good); }
.status.bad .icon { color: var(--critical); }

/* 指标 */
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tile { padding: 16px 18px; }
.tile-value { font-size: 22px; font-weight: 600; margin-top: 2px; }
@media (max-width: 720px) { .tiles { grid-template-columns: repeat(2, 1fr); } }

/* 图表 */
.chart-card { margin: 0; position: relative; }
.chart-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.chart-title { font-weight: 600; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart .base { stroke: var(--axis); stroke-width: 1; shape-rendering: crispEdges; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .bar { fill: var(--series-1); pointer-events: none; }
.chart .value-label, .chart .tick { pointer-events: none; }
.chart .budget-line { stroke: var(--ink-2); stroke-width: 1; stroke-dasharray: 4 3; shape-rendering: crispEdges; }
.chart .hit { fill: transparent; cursor: default; }
.chart .hit:hover + .bar, .chart .hit:focus + .bar, .chart .bar.active { fill: var(--series-1-hover); }
.chart .hit:focus { outline: none; }
.chart .value-label { fill: var(--ink); font-size: 11px; font-weight: 600; }

.tooltip {
  position: absolute; pointer-events: none; z-index: 2;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; font-size: 12px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); white-space: nowrap;
}
.tooltip .tt-value { font-size: 14px; font-weight: 600; color: var(--ink); }
.tooltip .tt-sub { color: var(--ink-2); }

.table-wrap { max-height: 360px; overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: right; padding: 6px 10px; border-bottom: 1px solid var(--grid); font-variant-numeric: tabular-nums; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--ink-2); font-weight: 500; position: sticky; top: 0; background: var(--surface); }

/* 订阅 */
.copy-row { display: flex; gap: 8px; margin: 12px 0 8px; }
.copy-row input { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.row-actions { display: flex; gap: 10px; align-items: center; }
details { margin-top: 12px; }
summary { cursor: pointer; color: var(--ink-2); font-size: 13px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 12px 0 0; font-size: 13px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; font-family: ui-monospace, Consolas, monospace; word-break: break-all; }

/* 改密 */
.pw-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: end; }
.pw-form #pw-msg { grid-column: 1 / -1; min-height: 18px; }
.pw-form .ok { color: var(--good-text); }
.pw-form .err { color: var(--critical); }
@media (max-width: 640px) { .pw-form { grid-template-columns: 1fr; } }

.foot { text-align: center; margin: 4px 0 16px; }

@media (forced-colors: active) {
  .chart .bar, .meter-fill { fill: CanvasText; background: CanvasText; }
}