@font-face { font-family: "Barlow"; font-weight: 400; font-display: swap; src: url("/fonts/barlow-400.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-weight: 500; font-display: swap; src: url("/fonts/barlow-500.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-weight: 600; font-display: swap; src: url("/fonts/barlow-600.woff2") format("woff2"); }
@font-face { font-family: "Barlow Condensed"; font-weight: 600; font-display: swap; src: url("/fonts/barlow-condensed-600.woff2") format("woff2"); }

:root {
  --haze: #E8EDF1;
  --paper: #FFFFFF;
  --ink: #10273D;
  --slate: #52657A;
  --line: #C8D2DB;
  --signal: #FFC42E;
  --signal-deep: #B97F00;
  --deck: #10273D;
  --deck-line: rgba(255, 255, 255, .14);
  --deck-dim: #9DB3C7;
  --up: #8FD0FF;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --haze: #0C1D2E;
    --paper: #132A40;
    --ink: #E8EDF1;
    --slate: #9DB0C2;
    --line: #25405A;
    --signal-deep: #FFC42E;
    --deck: #07131F;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--haze);
  color: var(--ink);
  font: 400 1.0625rem/1.55 "Barlow", "Helvetica Neue", Arial, sans-serif;
}

.wrap { max-width: 68rem; margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); }

a { color: inherit; text-decoration: underline; text-decoration-color: var(--signal-deep); text-decoration-thickness: 2px; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 3px; }
:focus-visible { outline: 3px solid var(--signal-deep); outline-offset: 3px; border-radius: 2px; }

.skip { position: absolute; left: 1rem; top: -4rem; background: var(--ink); color: var(--haze); padding: .5rem .9rem; border-radius: 4px; z-index: 2; }
.skip:focus { top: 1rem; }

/* Header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem 2rem; flex-wrap: wrap; padding-block: 1.25rem; }
.mark { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; font-weight: 500; font-size: 1.125rem; letter-spacing: .01em; }
.mark b { font-weight: 600; }
.top nav { display: flex; gap: .25rem 1.5rem; flex-wrap: wrap; font-size: 1rem; }
.top nav a { text-decoration: none; color: var(--slate); padding-block: .25rem; }
.top nav a:hover { color: var(--ink); text-decoration: underline; text-decoration-color: var(--signal-deep); }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 1.75rem 3rem; padding-block: clamp(2rem, 6vw, 4.5rem) clamp(1.75rem, 4vw, 2.75rem); }
h1, h2 { font-family: "Barlow Condensed", "Arial Narrow", sans-serif; font-weight: 600; margin: 0; }
h1 { font-size: clamp(2.9rem, 8.2vw, 5.6rem); line-height: .94; letter-spacing: -.012em; max-width: 12ch; text-wrap: balance; }
.hero p { margin: 1.25rem 0 0; max-width: 34rem; color: var(--slate); font-size: 1.125rem; }

.run {
  font: 600 1.1875rem/1 "Barlow", sans-serif;
  color: #10273D; background: var(--signal);
  border: 0; border-radius: 4px;
  padding: 1.15rem 2.1rem; min-width: 11.5rem;
  cursor: pointer;
}
.run:hover { background: #FFD25C; }
.run:active { background: #F0B41C; }
.run:focus-visible { outline-color: var(--ink); }

/* Instrument */
.instrument { background: var(--deck); color: #fff; border-radius: 6px; padding: clamp(1rem, 3vw, 1.75rem); padding-bottom: clamp(.9rem, 2.4vw, 1.25rem); }
@media (prefers-color-scheme: dark) { .instrument { border: 1px solid var(--line); } }
#trace { display: block; width: 100%; height: clamp(9.5rem, 26vw, 15rem); }
.phases { display: grid; grid-template-columns: 10fr 45fr 45fr; font-size: .875rem; color: var(--deck-dim); border-top: 1px solid var(--deck-line); }
.phases span { padding: .45rem 0 0 .5rem; border-left: 1px solid var(--deck-line); white-space: nowrap; }
.phases span:first-child { border-left: 0; padding-left: 0; }
.phases .on { color: var(--signal); font-weight: 600; }

.readouts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: clamp(1.25rem, 3vw, 2rem) 0 0; }
.readouts > div { padding-left: clamp(.75rem, 2vw, 1.5rem); border-left: 1px solid var(--deck-line); }
.readouts > div:first-child { padding-left: 0; border-left: 0; }
.readouts dt { font-size: .9375rem; color: var(--deck-dim); }
.readouts dd { margin: .15rem 0 0; font: 600 clamp(2.5rem, 6.4vw, 4.75rem)/1 "Barlow Condensed", "Arial Narrow", sans-serif; font-variant-numeric: tabular-nums; white-space: nowrap; }
.readouts small { font: 500 1rem/1 "Barlow", sans-serif; color: var(--deck-dim); }
.is-down dt::before, .is-up dt::before { content: ""; display: inline-block; width: .7rem; height: 3px; margin-right: .45rem; vertical-align: middle; background: var(--signal); border-radius: 2px; }
.is-up dt::before { background: var(--up); }
.status { margin: clamp(1.1rem, 2.6vw, 1.6rem) 0 0; padding-top: .85rem; border-top: 1px solid var(--deck-line); color: var(--deck-dim); font-size: 1rem; min-height: 2.4rem; }

/* Bands */
.band { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.3fr); gap: 1.25rem 3rem; padding-block: clamp(2.5rem, 6vw, 4rem); border-bottom: 1px solid var(--line); }
.instrument + .band { margin-top: clamp(1rem, 3vw, 2rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.5rem); line-height: 1; }
.band p { margin: 0 0 1rem; max-width: 38rem; }
.band p:last-child { margin-bottom: 0; }

table { width: 100%; border-collapse: collapse; margin: 1.5rem 0 1.75rem; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: .7rem 1rem .7rem 0; border-bottom: 1px solid var(--line); }
th { font-weight: 500; color: var(--slate); font-size: .9375rem; }
td:first-child { font-weight: 600; }

pre { margin: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 1rem 1.1rem; overflow-x: auto; font: .875rem/1.7 ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

.facts { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 3rem; }
.facts > div { padding: .8rem 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--slate); font-size: .9375rem; }
.facts dd { margin: .1rem 0 0; font-weight: 500; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

.foot { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: 2rem 3rem; color: var(--slate); font-size: 1rem; }
.foot p { margin: 0; }

/* 404 */
.lost { padding-block: clamp(3rem, 12vw, 8rem); }
.lost p { color: var(--slate); font-size: 1.125rem; margin: 1.25rem 0 0; }

@media (max-width: 46rem) {
  .hero { grid-template-columns: 1fr; align-items: start; }
  .run { width: 100%; }
  .band { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .readouts { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 1.25rem; }
  .readouts > div:nth-child(3) { padding-left: 0; border-left: 0; }
  th:last-child, td:last-child { display: none; }
}