:root {
  --navy: #10265f;
  --bg: #070d22;
  --panel: #122047;
  --ink: #f7f4f8;
  --muted: #b7adc0;
  --line: #2a3a6a;
  --red: #d0202e;
  --plum: #70264d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.5;
}

body::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, var(--navy) 0%, var(--plum) 48%, var(--red) 100%);
}

a { color: inherit; }

.skip {
  position: absolute;
  left: 16px;
  top: 8px;
  transform: translateY(-140%);
  background: #fff;
  color: var(--navy);
  padding: 8px 12px;
  z-index: 3;
}

.skip:focus { transform: none; }

.top, main, .foot {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  padding: 20px 0;
}

.brand img {
  display: block;
  height: 52px;
  width: auto;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

nav a:hover { color: var(--ink); }

.hero { padding: 28px 0 8px; }

h1, h2, h3 { letter-spacing: -0.04em; line-height: 1.05; }

h1 {
  margin: 8px 0 16px;
  max-width: 14ch;
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 700;
}

h2 {
  margin: 0 0 24px;
  font-size: clamp(28px, 4vw, 40px);
}

h3 {
  margin: 0 0 8px;
  font-size: 28px;
}

.kicker {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.lede {
  max-width: 38em;
  margin: 0;
  color: var(--muted);
}

.hero-actions { margin: 28px 0 36px; }

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  background: var(--red);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.btn:hover { background: #e43744; }

.index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}

.index li {
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.index span {
  grid-row: 1 / span 2;
  color: var(--red);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.index strong { font-size: 22px; }

.index em {
  color: var(--muted);
  font-style: normal;
}

section { padding: 64px 0; }

.split, .pair {
  display: grid;
  gap: 16px;
}

.split article, .sensor {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 24px;
}

.split p, .sensor p { margin: 0; }

.sensor { margin-top: 16px; }

.sensor-wind { box-shadow: inset 4px 0 0 var(--navy); }

.sensor-tank { box-shadow: inset 4px 0 0 var(--red); }

.sensor ul, .sensor p + ul {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.sensor li {
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.deck {
  width: min(100%, 1024px);
  margin-top: 28px;
  aspect-ratio: 1024 / 600;
  background: #050914;
  border: 1px solid var(--line);
}

.deck iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

#live a { color: #fff; }

.foot {
  padding: 8px 0 40px;
  color: var(--muted);
  font-size: 14px;
}

:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

@media (min-width: 800px) {
  .index { grid-template-columns: 1fr 1fr; }
  .index li:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 28px; }
  .index li:nth-child(even) { padding-left: 28px; }
  .split, .pair { grid-template-columns: 1fr 1fr; }
  .sensor-wind { margin-top: 0; }
}

@media (max-width: 640px) {
  .top { align-items: flex-start; flex-direction: column; gap: 8px; }
  .brand img { height: 44px; }
}