:root { --bg: #f6f7f9; --card: #fff; --ink: #14181d; --muted: #5d6670; --line: #dde1e6; --accent: #0b7fc1; --ok: #1a8f4a; --warn: #b45309; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, -apple-system, 'Segoe UI', sans-serif; background: var(--bg); color: var(--ink); }
header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 14px 18px; background: var(--card); border-bottom: 1px solid var(--line); }
h1 { font-size: 20px; margin: 0; letter-spacing: .02em; }
h2 { font-size: 17px; margin: 0 0 10px; }
main { max-width: 860px; margin: 0 auto; padding: 16px; display: grid; gap: 14px; }
section { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
label { display: block; font-size: 14px; color: var(--muted); margin: 8px 0 4px; }
input { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; }
input.code { font: 600 24px ui-monospace, monospace; letter-spacing: .15em; text-transform: uppercase; }
button { font: 600 15px system-ui, sans-serif; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; margin-top: 10px; }
button.quiet { background: #fff; color: var(--accent); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.muted { color: var(--muted); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #9aa3ad; margin-right: 6px; }
.dot.on { background: var(--ok); }
.car { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-top: 1px solid var(--line); cursor: pointer; }
.car:first-of-type { border-top: 0; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.tile { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.tile b { display: block; font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.tile span { font-size: 18px; font-weight: 600; }
ol.events { list-style: none; padding: 0; margin: 0; font-size: 14px; }
ol.events li { display: grid; grid-template-columns: 90px 1fr; gap: 8px; padding: 4px 0; border-top: 1px solid var(--line); }
#msg { max-width: 860px; margin: 0 auto 20px; padding: 0 16px; color: var(--warn); min-height: 1.4em; }
h2.carname { margin-top: 12px; }