:root {
  --bg: #f6f5f2; --card: #ffffff; --ink: #0b0b0b; --ink2: #52514e; --line: #e6e5e1; --zebra: #f8f7f4;
  --blue: #2a78d6; --blue-ink: #1d5fb0; --green: #008300; --red: #d63b3a; --err-bg: #fdecec; --ok-bg: #e8f5e8;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212; --card: #1c1c1b; --ink: #f1f0ec; --ink2: #a9a8a3; --line: #2e2e2c; --zebra: #20201f;
    --blue: #5b9bea; --blue-ink: #8bb9f2; --green: #4cc24c; --red: #f07070; --err-bg: #3a1d1d; --ok-bg: #1b331b;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--blue-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; line-height: 1.2; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 17px; margin: 0 0 12px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
main.wrap { padding-top: 24px; padding-bottom: 60px; }
.muted { color: var(--ink2); margin: 0; }
.small { font-size: 12.5px; }
.top { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--ink); display: inline-flex; align-items: center; gap: 8px; }
.brand.big { font-size: 20px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--blue); display: inline-block; }
.qa { font-size: 11px; font-weight: 700; background: #f4b400; color: #000; padding: 1px 6px; border-radius: 4px; }
nav { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
nav a, button.link { color: var(--ink2); padding: 6px 10px; border-radius: 6px; font: inherit; }
nav a.on, nav a:hover { color: var(--ink); background: var(--bg); text-decoration: none; }
button.link { background: none; border: 0; cursor: pointer; }
button.link:hover { color: var(--ink); background: var(--bg); }
button.link.danger { color: var(--red); padding: 2px 6px; }
form.inline { display: inline; margin: 0; }
.head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs { margin: 0 0 4px; font-size: 13px; color: var(--ink2); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 14px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { text-decoration: none; border-color: var(--ink2); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { filter: brightness(1.07); }
.btn.wide { width: 100%; margin-top: 6px; }
.btn[aria-busy="true"] { opacity: .6; pointer-events: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 18px; }
.card.narrow { max-width: 460px; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--blue); border-radius: var(--radius); padding: 14px 16px; }
.kpi .v { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--ink2); font-size: 13px; }
.bullets { margin: 0; padding-left: 20px; }
.bullets li { margin: 4px 0; }
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.t th { text-align: left; font-size: 12.5px; color: var(--ink2); font-weight: 600; border-bottom: 1.5px solid var(--ink); padding: 7px 8px; white-space: nowrap; }
.t td { padding: 7px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.t tbody tr:nth-child(even) td { background: var(--zebra); }
.t tfoot td { font-weight: 700; border-top: 1.5px solid var(--ink); border-bottom: 0; }
.t .r { text-align: right; }
.leaders td:first-child { white-space: normal; }
.good { color: var(--green); } .bad { color: var(--red); }
a.mini { font-size: 12px; font-weight: 600; border: 1px solid var(--line); padding: 1px 7px; border-radius: 5px; }
.charts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-bottom: 18px; }
.chart-box h3 { font-size: 13.5px; margin: 0 0 6px; font-weight: 600; }
.chart-box .c { position: relative; height: 210px; }
.bar-wrap { position: relative; height: 400px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.car-card { margin: 0; padding: 16px; }
.car-name { font-size: 18px; font-weight: 700; }
.row-actions { display: flex; gap: 14px; margin-top: 8px; font-size: 14px; font-weight: 600; }
.alert { padding: 10px 14px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); margin: 0 0 12px; }
.alert.err { background: var(--err-bg); border-color: transparent; }
.alert.ok { background: var(--ok-bg); border-color: transparent; }
.empty { text-align: center; padding: 60px 16px; max-width: 560px; margin: 0 auto; }
.auth { min-height: calc(100vh - 100px); display: flex; align-items: center; justify-content: center; }
.auth-card { width: 100%; max-width: 400px; padding: 28px; }
.auth-card .muted.small { margin-bottom: 16px; }
.auth-card h2 { margin-top: 8px; }
label { display: block; font-size: 13.5px; font-weight: 600; margin: 0 0 12px; }
input[type=text], input[type=password], input:not([type]), input[inputmode] {
  display: block; width: 100%; margin-top: 5px; padding: 10px 12px; font: inherit; font-size: 16px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
input:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
input.code { letter-spacing: .35em; font-size: 22px; text-align: center; font-variant-numeric: tabular-nums; }
.qr { text-align: center; margin: 12px 0; }
.qr img { border-radius: 8px; background: #fff; padding: 8px; max-width: 100%; height: auto; }
code.secret { font-size: 12px; word-break: break-all; }
.steps { padding-left: 20px; font-size: 14px; }
.upload { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 8px; }
.upload input[type=file] { font: inherit; max-width: 100%; }
@media (max-width: 800px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .charts { grid-template-columns: 1fr; }
  .kpi .v { font-size: 21px; }
  h1 { font-size: 22px; }
}
.pdf-note { flex-basis: 100%; text-align: right; }
.spinner { width: 34px; height: 34px; margin: 0 auto 16px; border: 3px solid var(--line); border-top-color: var(--blue); border-radius: 50%; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.period-form { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; margin: 0; }
.period-label { margin: 0; font-size: 12.5px; color: var(--ink2); }
.period-label select { display: block; margin-top: 3px; min-width: 170px; padding: 8px 10px; font: inherit; font-size: 15px; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
.car-card .period-form { margin-top: 12px; }
.car-card .period-label { flex: 1; }
.car-card .period-label select { width: 100%; min-width: 0; }
.car-card .period-form { flex-direction: column; align-items: stretch; }
.car-card .period-form .btn { width: 100%; }
.pdf-pair { display: flex; gap: 8px; flex-wrap: wrap; }
.car-card .pdf-pair { flex-direction: column; }
.car-card .pdf-pair .btn { width: 100%; }
.pdf-legend { margin: -6px 0 14px; }
.nowrap { white-space: nowrap; }
td.muted { color: var(--ink2); }