/* Palette is defined once per theme so both light and dark stay readable. */
:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --border: #e3e6ea;
  --text: #1b1f24;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --danger: #b91c1c;
  --grid: #eceff3;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .04);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --panel: #171b21;
    --border: #262c34;
    --text: #e6e9ee;
    --muted: #9aa3af;
    --accent: #60a5fa;
    --accent-soft: #1e293b;
    --danger: #f87171;
    --grid: #232931;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

/* The login panel and the app shell are toggled with the `hidden` attribute.
   A class rule setting `display` would win over the UA rule for [hidden], so
   state it once here instead of relying on the default. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.muted { color: var(--muted); }
h1, h2 { margin: 0; font-weight: 600; }
h2 { font-size: 15px; }

/* ---------- login ---------- */

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 12px;
}

.login-card h1 { font-size: 18px; }
.login-card p { margin: 0; font-size: 13px; }

.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.login-card input:focus,
.filters input:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.login-card button {
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.login-card button:hover { filter: brightness(1.06); }
.login-card button:disabled { opacity: .6; cursor: progress; }

.login-error {
  color: var(--danger);
  font-size: 13px;
}

/* ---------- layout ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.brand .muted { font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.topbar-actions { display: flex; gap: 8px; }

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  gap: 16px;
}

/* Grid and flex items size to `min-width: auto` by default, which lets a wide
   table inside an `overflow: auto` wrapper push its intrinsic width all the way
   up the tree and stretch every sibling panel. Pinning min-width to 0 keeps the
   scroll container in charge of its own overflow. */
main > * { min-width: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.panel-controls { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

label.inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

label.inline.checkbox { cursor: pointer; }

select {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.ghost {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.ghost:hover { border-color: var(--accent); color: var(--accent); }

.link {
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  padding: 0;
}
.link:hover { text-decoration: underline; }

/* ---------- filters ---------- */

.filters {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) repeat(3, minmax(150px, 1fr));
  gap: 16px;
}

@media (max-width: 900px) {
  .filters { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .filters { grid-template-columns: 1fr; }
}

.field { display: grid; gap: 6px; align-content: start; }
.field > label { font-size: 12px; font-weight: 600; color: var(--muted); }

.range { display: flex; align-items: center; gap: 8px; }
.range input[type="date"] {
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 13px;
}

.presets { display: flex; gap: 6px; flex-wrap: wrap; }
.presets button {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.presets button:hover { border-color: var(--accent); color: var(--accent); }
.presets button.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* checkbox dropdown */

.dropdown { position: relative; }
.dropdown-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
}
.dropdown-toggle:hover { border-color: var(--accent); }
.dropdown-toggle .caret { color: var(--muted); font-size: 10px; }
.dropdown-toggle .value {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dropdown-menu {
  position: absolute;
  z-index: 30;
  top: calc(100% + 4px);
  left: 0;
  min-width: 100%;
  max-height: 300px;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 6px;
}
.dropdown-menu[hidden] { display: none; }
.dropdown-menu label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
.dropdown-menu label:hover { background: var(--accent-soft); }
.dropdown-menu .empty { padding: 6px 8px; color: var(--muted); font-size: 12px; }
.dropdown-actions {
  display: flex;
  gap: 10px;
  padding: 6px 8px 2px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.filter-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  flex-wrap: wrap;
}

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}
.card .label { font-size: 12px; color: var(--muted); }
.card .value {
  font-size: 22px;
  font-weight: 600;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}
.card .sub { font-size: 11px; color: var(--muted); margin-top: 2px; }
.card.warn { border-color: var(--danger); }
.card.warn .value { color: var(--danger); }

/* ---------- chart ---------- */

.legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  font-size: 12px;
}
.legend button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: none;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  padding: 2px 0;
}
.legend .swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.legend button.off { opacity: .4; }

.chart-wrap { position: relative; width: 100%; }
#chart { display: block; width: 100%; height: 300px; }
#chart .bar { transition: opacity .12s; cursor: pointer; }
#chart .bar:hover { opacity: .78; }
#chart text { fill: var(--muted); font-size: 11px; }
#chart .axis { stroke: var(--grid); }

.chart-tip {
  position: fixed;
  z-index: 40;
  pointer-events: none;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 8px 10px;
  font-size: 12px;
  max-width: 320px;
}
.chart-tip .tip-title { font-weight: 600; margin-bottom: 4px; }
.chart-tip .tip-row { display: flex; justify-content: space-between; gap: 14px; }
.chart-tip .tip-row .num { font-variant-numeric: tabular-nums; }

/* ---------- tables ---------- */

.table-wrap, .pivot-wrap { overflow: auto; max-height: 560px; }

table { border-collapse: collapse; width: 100%; font-size: 13px; }

th, td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  white-space: nowrap;
}
th:first-child, td:first-child { text-align: left; }

thead th {
  position: sticky;
  top: 0;
  background: var(--panel);
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  z-index: 1;
}

tbody tr:hover { background: var(--accent-soft); }
td.num { font-variant-numeric: tabular-nums; }
td.mono, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
td.dim { color: var(--muted); }

tfoot td {
  font-weight: 600;
  border-top: 2px solid var(--border);
  border-bottom: 0;
  background: var(--panel);
}

/* Heat scale for pivot cells keeps magnitude visible without a second chart. */
td.heat { position: relative; }
td.heat span {
  position: relative;
  z-index: 1;
}

.empty-state {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}