@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=Archivo+Black&display=swap');

:root {
  --base: #07070b;
  --shell: #11111a;
  --line: #2f2f4a;
  --acid: #b2ff4f;
  --fog: #e9f2ff;
  --shock: #44d9ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--fog);
  background: linear-gradient(180deg, #07070b 0%, #0d101d 100%);
}

.shell {
  max-width: 1420px;
  margin: 0 auto;
  padding: 0 1.1rem;
}

.header {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 7, 11, 0.93);
  position: sticky;
  top: 0;
  z-index: 18;
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.branding {
  text-decoration: none;
  color: var(--fog);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.branding img { width: 34px; height: 34px; }

.grow { flex: 1; }

.hamburger {
  display: none;
  border: 1px solid var(--line);
  background: #11111a;
  color: var(--fog);
  border-radius: 5px;
  padding: 0.35rem 0.72rem;
}

.main-nav ul {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  gap: 0.45rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--fog);
  padding: 0.46rem 0.68rem;
  border-radius: 4px;
  border: 1px solid transparent;
}

.main-nav a:hover {
  border-color: var(--shock);
}

.stage {
  padding: 2.2rem 0 1rem;
}

.stage-wrap {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 1rem;
}

.hero-plate {
  border: 1px solid var(--line);
  padding: 1.45rem;
  background:
    radial-gradient(circle at 20% 0%, rgba(68,217,255,0.2), transparent 40%),
    radial-gradient(circle at 90% 120%, rgba(178,255,79,0.18), transparent 43%),
    #0f1220;
}

.hero-plate h1 {
  margin: 0;
  font-family: 'Archivo Black', sans-serif;
  letter-spacing: 0.01em;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
}

.hero-plate p { max-width: 70ch; }

.labels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 1rem;
}

.labels span {
  text-align: center;
  border: 1px solid var(--line);
  background: rgba(7,7,11,0.6);
  padding: 0.55rem 0.45rem;
}

.flash {
  border: 1px solid var(--line);
  padding: 1rem;
  background: #0a0d16;
}

.flash h2 {
  margin-top: 0;
  color: var(--acid);
  font-size: 1.2rem;
}

.playfield {
  padding-bottom: 2.4rem;
}

.play-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr;
  gap: 1rem;
}

.machine {
  border: 1px solid var(--line);
  background: #05060a;
  padding: 0.75rem;
}

.machine iframe {
  width: 100%;
  min-height: 670px;
  border: 0;
}

.rack {
  display: grid;
  gap: 0.8rem;
}

.rack-card {
  border: 1px solid var(--line);
  background: #0f1220;
  padding: 0.9rem;
}

.rack-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.doc-area {
  padding: 2rem 0 2.8rem;
}

.doc-tile {
  max-width: 980px;
  border: 1px solid var(--line);
  background: #0f1220;
  padding: 1.35rem;
}

.doc-tile h1 {
  margin-top: 0;
  font-family: 'Archivo Black', sans-serif;
  font-size: 2rem;
}

.footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 1rem 0 1.4rem;
}

.footer a { color: var(--shock); }

.guard {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
  padding: 1rem;
}

.guard.hide { display: none; }

.guard-box {
  width: min(520px, 100%);
  border: 1px solid var(--line);
  background: #121625;
  padding: 1.2rem;
}

.guard-actions {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.6rem;
}

.guard-actions button {
  border: 0;
  padding: 0.52rem 0.82rem;
  font-weight: 700;
}

.guard-actions .go { background: var(--acid); color: #162105; }
.guard-actions .halt { background: #3b3f5c; color: var(--fog); }

@media (max-width: 960px) {
  .stage-wrap, .play-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .hamburger { display: inline-flex; }
  .header-inner { flex-wrap: wrap; }
  .main-nav {
    display: none;
    width: 100%;
    border-top: 1px solid var(--line);
    padding-top: 0.5rem;
  }
  .main-nav.visible { display: block; }
  .main-nav ul { flex-direction: column; }
  .labels { grid-template-columns: 1fr; }
  .machine iframe { min-height: 470px; }
}