/* Capture viewer - a light logic-analyzer page; two bus colours carry all the meaning. */
:root {
  --bg: #F6F5F1;
  --surface: #FFFFFF;
  --ink: #141821;
  --muted: #5F6672;
  --rule: #DCDAD2;
  --grid: #ECEAE3;
  --c0: #E8590C;          /* CAN0, orange */
  --c1: #1C6FD6;          /* CAN1, blue */
  --fast: #FFFFFF;        /* data phase hatch */
  --lat: #8A3FD1;         /* latency, violet */
  --ok: #2B8A3E;
  --f-label: "Barlow Semi Condensed", "Bahnschrift", "Arial Narrow", sans-serif;
  --f-body: "Barlow", "Segoe UI", system-ui, sans-serif;
  --f-num: "JetBrains Mono", "Cascadia Mono", ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151C; --surface: #1A1E27; --ink: #E9ECF1; --muted: #9AA3B0; --rule: #2C323E; --grid: #222733;
    --c0: #FF8A3D; --c1: #4C9BFF; --lat: #B57CF2; --ok: #57C46B;
  }
}
:root[data-theme="dark"] {
  --bg: #12151C; --surface: #1A1E27; --ink: #E9ECF1; --muted: #9AA3B0; --rule: #2C323E; --grid: #222733;
  --c0: #FF8A3D; --c1: #4C9BFF; --lat: #B57CF2; --ok: #57C46B;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 var(--f-body); }
a { color: var(--c1); }
code { font: 13px var(--f-num); }
b.c0 { color: var(--c0); }
b.c1 { color: var(--c1); }
.muted { color: var(--muted); }
:focus-visible { outline: 2px solid var(--lat); outline-offset: 2px; }

.top { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; padding: 18px max(16px, 4vw); border-bottom: 1px solid var(--rule); }
.brand { display: flex; align-items: center; gap: 14px; }
.chip-icon { width: 38px; height: 38px; border-radius: 6px; background: var(--ink); display: grid; grid-template-columns: 1fr 1fr; gap: 3px; padding: 7px; }
.chip-icon i { background: var(--bg); border-radius: 1px; }
.chip-icon i:nth-child(1) { background: var(--c0); }
.chip-icon i:nth-child(4) { background: var(--c1); }
.eyebrow { margin: 0; font: 600 12px var(--f-label); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0; font: 700 28px/1.1 var(--f-label); letter-spacing: .01em; }
.links { margin-left: auto; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.links a { font: 600 14px var(--f-label); letter-spacing: .04em; text-decoration: none; }
.ghost { font: 600 14px var(--f-label); letter-spacing: .04em; border: 1px solid var(--rule); background: var(--surface); color: var(--ink); border-radius: 5px; padding: 6px 12px; cursor: pointer; }
.ghost:hover { border-color: var(--muted); }
#open-label input { display: none; }

main { padding: 0 max(16px, 4vw) 48px; max-width: 1500px; margin: 0 auto; }
.intro { padding: 22px 0 6px; max-width: 980px; }
.lead { font-size: 17px; margin: 0 0 6px; }
.src { margin: 0; font: 13px var(--f-num); color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; margin: 18px 0; }
.stat { background: var(--surface); padding: 12px 16px; }
.stat b { display: block; font: 600 12px var(--f-label); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.stat span { display: block; font: 500 24px/1.3 var(--f-num); }
.stat small { font: 12px var(--f-body); color: var(--muted); }
.stat.hero span { color: var(--ok); }

.scope { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: 12px 14px 10px; }
.scope-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font: 500 14px var(--f-label); letter-spacing: .03em; }
.sw { display: inline-block; width: 18px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.sw.c0 { background: var(--c0); }
.sw.c1 { background: var(--c1); }
.sw.fast { background: repeating-linear-gradient(135deg, var(--muted) 0 2px, transparent 2px 5px); border: 1px solid var(--muted); }
.sw.lat { height: 0; border-top: 2px solid var(--lat); width: 22px; vertical-align: 3px; }
.zoom { margin-left: auto; display: flex; gap: 6px; }
.zoom .ghost { min-width: 36px; }
canvas { width: 100%; display: block; }
#tl { cursor: grab; }
#tl.drag { cursor: grabbing; }
#mini { margin-top: 6px; cursor: pointer; border-top: 1px solid var(--grid); }
.hint { margin: 6px 0 0; font-size: 13px; color: var(--muted); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: 16px 18px; min-width: 0; }
h2 { margin: 0 0 12px; font: 700 15px var(--f-label); letter-spacing: .12em; text-transform: uppercase; }
h2 .muted { font: 400 13px var(--f-body); letter-spacing: 0; text-transform: none; }

.fields { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; font-size: 14px; margin-bottom: 14px; }
.fields dt { color: var(--muted); font: 600 13px var(--f-label); letter-spacing: .06em; text-transform: uppercase; }
.fields dd { margin: 0; font: 13px var(--f-num); }
.bytes { display: flex; flex-wrap: wrap; gap: 2px; }
.byte { font: 12px var(--f-num); padding: 3px 0; width: 26px; text-align: center; border-radius: 3px; color: #fff; }
.k-sync { background: #6B7280; }
.k-flags { background: #8A3FD1; }
.k-ts { background: #0F9D7A; }
.k-id { background: #1C6FD6; }
.k-len { background: #C98A0B; }
.k-data { background: #9AA3B0; color: #141821; }
.k-sum { background: #D6455D; }
.byte-legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-top: 8px; }
.byte-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

.table-wrap { max-height: 330px; overflow: auto; margin-top: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { position: sticky; top: 0; background: var(--surface); text-align: left; font: 600 12px var(--f-label); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--rule); }
td { padding: 5px 8px; border-bottom: 1px solid var(--grid); font-family: var(--f-num); font-size: 12.5px; }
tr.pick { cursor: pointer; }
tr.pick:hover td, tr.sel td { background: color-mix(in srgb, var(--lat) 10%, transparent); }
footer { margin-top: 26px; color: var(--muted); font-size: 13px; max-width: 980px; }