:root { color-scheme: dark; }

* { box-sizing: border-box; }

html, body { overscroll-behavior: none; }

body {
  margin: 0;
  background: #05070d;
  color: #dfe6f2;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

header, main, footer { max-width: 780px; margin: 0 auto; padding: 16px; }

h1 { margin: 0 0 4px; font-size: 20px; letter-spacing: 0.5px; }

.tagline { margin: 0; color: #8b97ad; }

header { border-bottom: 1px solid #1b2438; }

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

#controls label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 140px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #8b97ad;
}

#controls input {
  width: 100%;
  min-width: 0;
  background: #0d1322;
  border: 1px solid #26324a;
  border-radius: 6px;
  color: #dfe6f2;
  padding: 9px 10px;
  font-size: 16px;
}

#controls button {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 20px;
  background: #2d5bd7;
  border: 0;
  border-radius: 6px;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}

#controls button:hover { background: #3d6bea; }

#status { color: #8b97ad; font-size: 13px; }

#passes { padding-left: 1.2em; }

footer {
  border-top: 1px solid #1b2438;
  color: #6b7688;
  font-size: 12px;
}

footer a { color: #8fa8e0; }

code { background: #0d1322; padding: 1px 4px; border-radius: 4px; }

@media (max-width: 600px) {
  #controls button { flex: 1 1 100%; }
}