:root {
  color-scheme: light;
  --page:            #f9f9f7;
  --surface-1:       #fcfcfb;
  --text-primary:    #0b0b0b;
  --text-secondary:  #52514e;
  --text-muted:      #898781;
  --gridline:        #e1e0d9;
  --baseline:        #c3c2b7;
  --border:          rgba(11,11,11,0.10);
  --series-1:        #2a78d6;
  --series-2:        #eb6834;
  --series-3:        #1baf7a;
  --good:            #0ca30c;
  --warning:         #fab219;
  --critical:        #d03b3b;
  --hot:             #d03b3b;
  --warm:            #fab219;
  --cold:            #2a78d6;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page:            #0d0d0d;
    --surface-1:       #1a1a19;
    --text-primary:    #ffffff;
    --text-secondary:  #c3c2b7;
    --text-muted:      #898781;
    --gridline:        #2c2c2a;
    --baseline:        #383835;
    --border:          rgba(255,255,255,0.10);
    --series-1:        #3987e5;
    --series-2:        #d95926;
    --series-3:        #199e70;
    --good:            #0ca30c;
    --warning:         #fab219;
    --critical:        #e66767;
  }
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page); color: var(--text-primary);
  margin: 0; padding: 0 0 64px;
}
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 32px; border-bottom: 1px solid var(--border);
  background: var(--surface-1); position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 700; }
.topbar .meta { color: var(--text-muted); font-size: 12.5px; margin-top: 2px; }
.btn-ghost {
  font: inherit; font-size: 13px; padding: 7px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: transparent; color: var(--text-secondary); cursor: pointer;
}
.btn-ghost:hover { color: var(--text-primary); }
.tabs {
  display: flex; gap: 4px; padding: 12px 32px 0; background: var(--surface-1);
  border-bottom: 1px solid var(--border); overflow-x: auto;
}
.tab {
  padding: 10px 16px; font-size: 13.5px; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; border-bottom: 2px solid transparent; user-select: none;
  text-decoration: none; white-space: nowrap;
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--series-1); border-bottom-color: var(--series-1); }
main { max-width: 1180px; margin: 0 auto; padding: 24px 32px; }

.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 14px; margin-bottom: 20px; }
.kpi { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.kpi .value { font-size: 26px; font-weight: 700; line-height: 1.15; }
.kpi .label { color: var(--text-muted); font-size: 12.5px; margin-top: 4px; }

.card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 20px 22px; margin-bottom: 20px; }
.card h2 { font-size: 14.5px; margin: 0 0 2px; font-weight: 700; }
.card .subtitle { color: var(--text-muted); font-size: 12.5px; margin: 0 0 14px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; }
tr:hover td { background: rgba(127,127,127,0.05); }
.table-wrap { overflow-x: auto; }

.filters { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.filters input[type="text"], .filters select {
  font: inherit; font-size: 13px; padding: 7px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--page); color: var(--text-primary);
}
.filters .count { color: var(--text-muted); font-size: 12.5px; margin-left: auto; }

svg.chart { width: 100%; overflow: visible; display: block; }
.axis-label { fill: var(--text-muted); font-size: 10.5px; }
.gridline { stroke: var(--gridline); stroke-width: 1; }

.pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; }
.pill-hot { background: var(--hot); color: white; }
.pill-warm { background: var(--warm); color: #2b2200; }
.pill-cold { background: var(--cold); color: white; }
.pill-none { background: var(--gridline); color: var(--text-secondary); }
.pill-call { background: var(--gridline); color: var(--text-secondary); }

.temp-btns { display: flex; gap: 6px; }
.temp-btn {
  font: inherit; font-size: 12px; padding: 4px 10px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--page); color: var(--text-secondary);
}
.temp-btn[data-temp="hot"].active { background: var(--hot); color: white; border-color: var(--hot); }
.temp-btn[data-temp="warm"].active { background: var(--warm); color: #2b2200; border-color: var(--warm); }
.temp-btn[data-temp="cold"].active { background: var(--cold); color: white; border-color: var(--cold); }

.notes-list { display: flex; flex-direction: column; gap: 8px; margin: 10px 0; max-height: 220px; overflow-y: auto; }
.note-item { background: var(--page); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 12.5px; }
.note-item .note-meta { color: var(--text-muted); font-size: 11px; margin-bottom: 3px; }
.note-form { display: flex; gap: 8px; }
.note-form textarea {
  flex: 1; font: inherit; font-size: 13px; padding: 7px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--page); color: var(--text-primary); resize: vertical; min-height: 36px;
}
.note-form button {
  font: inherit; font-size: 13px; padding: 7px 14px; border-radius: 8px; border: none;
  background: var(--series-1); color: white; cursor: pointer;
}

.detail-row td { padding: 0; }
.detail-panel { padding: 14px 16px; background: var(--page); border-top: 1px solid var(--border); }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 10px; margin-bottom: 14px; font-size: 12.5px; }
.detail-grid .k { color: var(--text-muted); font-size: 11px; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 24px; }
.login-card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 14px;
  padding: 32px; width: 320px; display: flex; flex-direction: column; gap: 14px;
}
.login-card h1 { font-size: 16px; margin: 0 0 6px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--text-secondary); }
.login-card input {
  font: inherit; font-size: 14px; padding: 9px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--page); color: var(--text-primary);
}
.login-card button {
  font: inherit; font-size: 14px; padding: 10px; border-radius: 8px; border: none;
  background: var(--series-1); color: white; cursor: pointer; font-weight: 600;
}
.login-error { background: rgba(208,59,59,0.12); color: var(--critical); padding: 8px 10px; border-radius: 8px; font-size: 12.5px; }

.muted { color: var(--text-muted); }
.clickable { cursor: pointer; }