/* Sparks Tech Lab — THE LAB design tokens (v5-4 void palette) */
:root {
  --void: #050508;
  --void-2: #0a0a10;
  --violet: #9B7EFF;
  --cyan: #22D3EE;
  --gold: #C9A84C;
  --ink: #E8E6F0;
  --ink-dim: rgba(232, 230, 240, 0.55);
  --glass: rgba(12, 12, 20, 0.72);
  --glass-border: rgba(155, 126, 255, 0.28);
  --glass-strong: rgba(8, 8, 14, 0.88);
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --dock-h: 96px;
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  height: 100%;
  width: 100%;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--gold); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Skip / reduced-motion / accessibility */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10000;
  padding: 10px 14px;
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* STL monogram watermark */
.stl-mono {
  position: fixed;
  top: calc(12px + var(--safe-top));
  left: 14px;
  z-index: 9000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.stl-mono:hover {
  border-color: var(--violet);
  box-shadow: 0 0 24px rgba(155, 126, 255, 0.25);
}
.stl-mono .mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--gold), var(--violet) 55%, transparent 70%),
              radial-gradient(circle at 70% 70%, var(--cyan), transparent 60%);
  box-shadow: 0 0 12px rgba(155, 126, 255, 0.5);
}

/* Funnel chip — always visible on demos */
.funnel-chip {
  position: fixed;
  bottom: calc(18px + var(--safe-bottom));
  right: 14px;
  z-index: 9000;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: min(420px, calc(100vw - 28px));
  padding: 10px 12px 10px 14px;
  background: var(--glass-strong);
  border: 1px solid rgba(201, 168, 76, 0.35);
  border-radius: 999px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.3;
  color: var(--ink-dim);
  box-shadow: 0 8px 32px rgba(0,0,0,0.45);
}
.funnel-chip strong {
  color: var(--ink);
  font-weight: 500;
}
.funnel-chip a.cta {
  flex-shrink: 0;
  padding: 7px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold), #e0c06a);
  color: #1a1408;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.funnel-chip a.cta:hover { filter: brightness(1.08); color: #1a1408; }

@media (max-width: 640px) {
  .funnel-chip {
    left: 10px;
    right: 10px;
    bottom: calc(78px + var(--safe-bottom));
    max-width: none;
    border-radius: 16px;
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .stl-mono span.label { display: none; }
}

/* Capability badge */
.cap-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
}
.cap-badge.full {
  color: var(--cyan);
  border-color: rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
}
.cap-badge.degraded {
  color: var(--gold);
  border-color: rgba(201, 168, 76, 0.35);
  background: rgba(201, 168, 76, 0.08);
}
.cap-badge.desktop {
  color: var(--violet);
  border-color: rgba(155, 126, 255, 0.35);
  background: rgba(155, 126, 255, 0.08);
}
.cap-badge.soon {
  color: var(--ink-dim);
  border-color: rgba(232, 230, 240, 0.15);
  background: rgba(255,255,255,0.04);
}

/* Hide UI mode (H key) — for screen recording */
html.ui-hidden .stl-mono,
html.ui-hidden .funnel-chip,
html.ui-hidden .demo-chrome,
html.ui-hidden .hub-dock,
html.ui-hidden .hub-header,
html.ui-hidden .demo-hud,
html.ui-hidden .skip-link {
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Reduced motion poster overlay */
.rm-fallback {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(155,126,255,0.18), transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(34,211,238,0.12), transparent 45%),
    var(--void);
  text-align: center;
  padding: 24px;
}
.rm-fallback h1 {
  margin: 0;
  font-size: clamp(28px, 6vw, 48px);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.rm-fallback p {
  margin: 0;
  max-width: 420px;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
}
.rm-fallback .btn {
  margin-top: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
}
html.reduced-motion .rm-fallback { display: flex; }
html.reduced-motion canvas#gl,
html.reduced-motion canvas#c,
html.reduced-motion #webgl-fluid,
html.reduced-motion .sim-canvas {
  visibility: hidden !important;
}