:root{
  --bg0:#05060a;
  --bg1:#081027;
  --ink:#eaf7ff;
  --muted:#b5c3dd;
  --lime:#b8ff3d;
  --cyan:#00fff5;
  --magenta:#ff42f5;
  --sun:#ffd34d;
  --orange:#ff6b2d;
  --violet:#7c3cff;
  --glass: rgba(255,255,255,0.08);
  --glass2: rgba(0,0,0,0.25);
  --stroke: rgba(255,255,255,0.14);
  --shadow: 0 20px 60px rgba(0,0,0,0.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--ink);
  background: radial-gradient(1200px 800px at 10% 10%, rgba(255,211,77,0.18), transparent 55%),
              radial-gradient(900px 600px at 90% 20%, rgba(0,255,245,0.15), transparent 55%),
              radial-gradient(800px 600px at 60% 90%, rgba(255,66,245,0.13), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow:hidden;
}

/* Background layers */
#viz{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
}
.bg{position:fixed; inset:0; z-index:1; pointer-events:none;}
.bg__sunburst{
  position:absolute; inset:-40vmax;
  background:
    repeating-conic-gradient(from 0deg,
      rgba(255,211,77,0.0) 0deg 8deg,
      rgba(255,211,77,0.08) 8deg 10deg,
      rgba(0,255,245,0.0) 10deg 18deg,
      rgba(0,255,245,0.07) 18deg 20deg);
  filter: blur(0.5px) saturate(1.2);
  mix-blend-mode: screen;
  animation: spin 28s linear infinite;
  transform-origin: 50% 50%;
}
.bg__aurora{
  position:absolute; inset:-30%;
  background:
    radial-gradient(closest-side at 30% 40%, rgba(184,255,61,0.20), transparent 60%),
    radial-gradient(closest-side at 70% 35%, rgba(255,66,245,0.22), transparent 55%),
    radial-gradient(closest-side at 60% 70%, rgba(0,255,245,0.18), transparent 60%),
    radial-gradient(closest-side at 40% 75%, rgba(255,107,45,0.16), transparent 55%);
  filter: blur(26px) saturate(1.2);
  mix-blend-mode: screen;
  animation: drift 16s ease-in-out infinite alternate;
}
.bg__scanlines{
  position:absolute; inset:0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.03) 0px,
    rgba(255,255,255,0.03) 1px,
    rgba(0,0,0,0.0) 3px,
    rgba(0,0,0,0.0) 6px
  );
  opacity:0.35;
  mix-blend-mode: overlay;
  animation: scan 5s linear infinite;
}

@keyframes spin{to{transform: rotate(360deg);}}
@keyframes drift{
  0%{transform: translate3d(-2%, -1%, 0) rotate(-2deg) scale(1.06)}
  100%{transform: translate3d(2%, 2%, 0) rotate(2deg) scale(1.12)}
}
@keyframes scan{
  0%{transform: translateY(-4%)}
  100%{transform: translateY(4%)}
}

/* Layout */
.topbar{
  position:relative;
  z-index:3;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 18px 20px;
  gap: 18px;
}

.brand{display:flex; gap:12px; align-items:center;}
.brand__logo{
  width:42px; height:42px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,211,77,0.95), rgba(255,107,45,0.65) 40%, rgba(124,60,255,0.25) 70%, transparent 72%),
    conic-gradient(from 180deg, rgba(0,255,245,0.85), rgba(184,255,61,0.85), rgba(255,66,245,0.85), rgba(0,255,245,0.85));
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.14),
    0 0 26px rgba(0,255,245,0.25),
    0 0 40px rgba(255,66,245,0.15);
  position:relative;
  overflow:hidden;
}
.brand__logo::after{
  content:"";
  position:absolute; inset:-60%;
  background: repeating-conic-gradient(
    rgba(255,255,255,0.0) 0deg 6deg,
    rgba(255,255,255,0.12) 6deg 7deg);
  animation: spin 6s linear infinite;
  mix-blend-mode: overlay;
}
.brand__title{
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  font-size: 12px;
  opacity:0.95;
}
.brand__sub{font-size:12px; color:var(--muted); opacity:0.85}

.controls{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.btn{
  appearance:none;
  border:1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03));
  color:var(--ink);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 700;
  letter-spacing:0.2px;
  cursor:pointer;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  transition: transform 120ms ease, filter 120ms ease, background 120ms ease;
  position:relative;
  overflow:hidden;
  user-select:none;
}
.btn::before{
  content:"";
  position:absolute;
  inset:-120% -50%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.20), transparent);
  transform: rotate(25deg);
  animation: shimmer 3.8s linear infinite;
  opacity:0.7;
}
@keyframes shimmer{to{transform: translateX(60%) rotate(25deg);}}
.btn:hover{transform: translateY(-1px) scale(1.01); filter:saturate(1.15)}
.btn:active{transform: translateY(1px) scale(0.99)}

.btn--primary{
  border-color: rgba(184,255,61,0.25);
  background:
    radial-gradient(circle at 20% 30%, rgba(184,255,61,0.30), rgba(0,0,0,0.0) 55%),
    radial-gradient(circle at 80% 60%, rgba(0,255,245,0.20), rgba(0,0,0,0.0) 55%),
    linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04));
  box-shadow:
    0 0 0 1px rgba(184,255,61,0.15),
    0 0 22px rgba(184,255,61,0.18),
    0 0 32px rgba(0,255,245,0.12);
}

.counter{
  display:flex;
  align-items:baseline;
  gap:6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(10px);
}
.counter__label{font-size:11px; color:var(--muted);}
.counter__value{font-weight:900; letter-spacing:0.6px;}

.stage{
  position:relative;
  z-index:3;
  display:grid;
  grid-template-columns: minmax(320px, 1fr) 320px;
  gap: 18px;
  padding: 0 20px 20px;
  height: calc(100% - 84px);
  align-items:stretch;
}

.card, .side__panel{
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04));
  border: 1px solid var(--stroke);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.card{
  padding: 22px 22px 18px;
  position:relative;
  overflow:hidden;
}
.card::after{
  content:"";
  position:absolute;
  inset:-80px;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,211,77,0.12), transparent 55%),
    radial-gradient(circle at 80% 30%, rgba(0,255,245,0.10), transparent 55%),
    radial-gradient(circle at 40% 90%, rgba(255,66,245,0.10), transparent 55%);
  filter: blur(12px);
  animation: drift 10s ease-in-out infinite alternate;
  pointer-events:none;
}

.label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:0.35px;
  text-transform: uppercase;
  color: rgba(234,247,255,0.92);
  opacity:0.92;
}
.pulse{
  width:10px; height:10px;
  border-radius:50%;
  background: var(--lime);
  box-shadow: 0 0 12px rgba(184,255,61,0.55);
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{transform: scale(0.9); filter: brightness(0.9)}
  50%{transform: scale(1.4); filter: brightness(1.25)}
}

.q{
  margin: 10px 0 0;
  font-size: clamp(22px, 3.3vw, 44px);
  line-height:1.05;
  font-weight: 950;
  letter-spacing: -0.6px;
  text-wrap: balance;
  text-shadow:
    0 0 14px rgba(0,255,245,0.12),
    0 0 22px rgba(255,66,245,0.10);
}

.divider{
  display:flex;
  gap:10px;
  align-items:center;
  margin: 14px 0 12px;
}
.divider__spark{
  height:2px;
  border-radius:999px;
  flex:1;
  background: linear-gradient(90deg, rgba(0,255,245,0.0), rgba(0,255,245,0.65), rgba(184,255,61,0.65), rgba(255,66,245,0.55), rgba(255,66,245,0.0));
  filter: drop-shadow(0 0 10px rgba(0,255,245,0.25));
  animation: spark 2.2s ease-in-out infinite;
}
.divider__spark:nth-child(2){animation-delay: -0.7s;}
.divider__spark:nth-child(3){animation-delay: -1.4s;}
@keyframes spark{
  0%,100%{transform: scaleX(0.8); opacity:0.65}
  50%{transform: scaleX(1.0); opacity:1}
}

.a{
  position:relative;
  font-size: 16px;
  line-height:1.65;
  color: rgba(234,247,255,0.92);
  max-width: 92ch;
}

.meta{
  margin-top: 14px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.meta__chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.18);
  color: rgba(234,247,255,0.85);
  font-size:12px;
}

.side{display:flex; flex-direction:column; gap:18px;}
.side__panel{padding:16px 16px 14px;}
.side__panel--thin{padding:14px 16px;}
.side__title{font-weight:900; letter-spacing:0.35px; text-transform:uppercase; font-size:12px; opacity:0.92}
.side__rows{margin-top:10px; display:grid; gap:10px;}
.row{display:flex; justify-content:space-between; color:rgba(234,247,255,0.85); font-weight:700;}
.row span:first-child{color:var(--muted); font-weight:700}
.side__hint{margin-top:12px; color:rgba(234,247,255,0.75); font-size:12px; line-height:1.5}
code{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 0.95em;}

kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(0,0,0,0.20);
}

.footer{
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:3;
  padding: 10px 20px;
  display:flex;
  justify-content:space-between;
  gap:10px;
  color:rgba(234,247,255,0.65);
  font-size:12px;
}

.toast{
  position:fixed;
  z-index:6;
  left:50%;
  top: 16px;
  transform: translateX(-50%);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(0,0,0,0.40);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  opacity:0;
  pointer-events:none;
  transition: opacity 180ms ease, transform 180ms ease;
}
.toast--show{opacity:1; transform: translateX(-50%) translateY(0)}

/* Text FX */
.glitch{
  position:relative;
  text-shadow:
    -1px 0 rgba(0,255,245,0.60),
    1px 0 rgba(255,66,245,0.50),
    0 0 24px rgba(255,211,77,0.10);
}
.glitch::before,
.glitch::after{
  content: attr(data-text);
  position:absolute;
  left:0; top:0;
  width:100%;
  overflow:hidden;
  opacity:0.65;
  pointer-events:none;
}
.glitch::before{
  transform: translate(2px, -1px);
  clip-path: inset(0 0 52% 0);
  filter: hue-rotate(25deg);
  animation: glitch 2.6s infinite;
}
.glitch::after{
  transform: translate(-2px, 1px);
  clip-path: inset(48% 0 0 0);
  filter: hue-rotate(-25deg);
  animation: glitch 3.3s infinite;
}
@keyframes glitch{
  0%,100%{opacity:0.18}
  50%{opacity:0.75}
}

/* Responsive */
@media (max-width: 980px){
  .stage{grid-template-columns: 1fr; height: calc(100% - 128px);}
  .footer{position:relative; padding-bottom:18px;}
}