:root {
  --bg: #0f1216;
  --grid: #1a1f26;
  --card: #161b22;
  --card-hover: #1b222b;
  --line: #2a313b;
  --text: #e6e9ee;
  --muted: #8b95a3;
  --idle: #8f7bff;
  --factory: #f2b134;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  flex: 1;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 12vh 20px 48px;
}

header { margin-bottom: 40px; }

.mark {
  margin: 0 0 6px;
  color: var(--muted);
  font: 600 13px/1 ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lead { margin: 12px 0 0; color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  --accent: var(--muted);
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.card--idle { --accent: var(--idle); }
.card--factory { --accent: var(--factory); }

.card:hover,
.card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent);
  background: var(--card-hover);
}

.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.art {
  display: block;
  height: 140px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(120% 100% at 30% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%);
}

.art svg {
  display: block;
  width: 100%;
  height: 100%;
  padding: 18px;
  fill: var(--accent);
  stroke: var(--accent);
  stroke-width: 0;
}

.art .ring { fill: none; stroke-width: 2; opacity: 0.6; }
.art .belt { fill: none; stroke-width: 2; stroke-dasharray: 6 4; opacity: 0.6; }
.art .machine { fill: none; stroke-width: 2; }
.art .split { opacity: 0.6; }

.body { display: block; padding: 18px 20px 22px; }

.title { display: block; font-size: 22px; font-weight: 650; }

.text { display: block; margin-top: 4px; color: var(--muted); }

.go {
  position: absolute;
  right: 18px;
  bottom: 18px;
  color: var(--accent);
  font-size: 20px;
  transition: transform 0.15s ease;
}

.card:hover .go { transform: translateX(4px); }

footer {
  padding: 24px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .card, .go { transition: none; }
  .card:hover, .card:focus-visible, .card:hover .go { transform: none; }
}