.lab-head { padding-top: clamp(40px, 6vw, 80px); padding-bottom: 40px; }
.lab-head .lede { margin-top: 18px; }

/* ---------- console ---------- */
.console { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 28px; align-items: stretch; }
.screen-bezel {
  position: relative;
  padding: 18px 18px 34px;
  border: var(--px) solid var(--white);
  background: #0b0b0b;
  box-shadow: var(--mis-box);
}
.screen { width: 100%; aspect-ratio: 16 / 10; background: #000; image-rendering: pixelated; border: 2px solid #2a2a2a; }
.screen-off { position: absolute; inset: 18px 18px 34px; display: grid; place-items: center; font: 400 14px/1 var(--f-hud); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.screen-off[hidden] { display: none; }
.power { position: absolute; right: 18px; bottom: 12px; width: 10px; height: 10px; background: #333; }
.power.on { background: var(--fire); box-shadow: 0 0 10px var(--fire); }
.screen-bezel::after { content: 'booter · cartridge system'; position: absolute; left: 18px; bottom: 10px; font: 400 10px/1 var(--f-hud); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }

.readout { display: flex; flex-direction: column; gap: 10px; padding: 22px; border: var(--px) solid var(--white); background: var(--black); }
.readout .title-m { margin: 0; }
.readout dl { display: grid; grid-template-columns: 82px 1fr; gap: 8px 14px; margin: 8px 0 0; font-size: 15px; }
.readout dt { font: 400 11px/1.6 var(--f-hud); text-transform: uppercase; color: var(--muted); }
.readout dd { margin: 0; color: var(--bone); }
.readout .summary { margin: 0; color: var(--white); font-size: 17px; }
.readout .btn { align-self: start; margin-top: auto; }

/* ---------- cartridges ---------- */
.cart-shelf { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-top: 30px; }
.cartridge {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 10px 10px;
  border: var(--px) solid var(--white);
  background: #121212;
  text-align: left;
  transition: transform .12s steps(3), box-shadow .12s steps(3);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 88% 100%, 88% 94%, 12% 94%, 12% 100%, 0 100%);
}
.cartridge::before { content: ''; position: absolute; top: 6px; left: 10px; right: 10px; height: 12px; background: repeating-linear-gradient(90deg, #3a3a3a 0 3px, transparent 3px 7px); }
.cart-label { position: relative; aspect-ratio: 1; overflow: hidden; border: 2px solid #3a3a3a; background: #000; }
.cart-label img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.4) brightness(.85); }
.cart-label .gen { width: 100%; height: 100%; display: grid; place-items: center; font: 700 22px/1 var(--f-display); color: var(--white); }
.cart-name { margin: 10px 2px 4px; font: 700 16px/1.05 var(--f-display); color: var(--white); }
.cartridge .badge { align-self: start; margin: 2px 2px 14px; font-size: 9px; }
.cartridge:hover { transform: translateY(-6px); }
.cartridge[aria-pressed='true'] { transform: translateY(-14px); box-shadow: var(--mis-box); }
.cartridge[aria-pressed='true'] .cart-label img { filter: none; }
.checked { margin: 20px 0 0; font-size: 10px; }
@media (max-width: 1000px) {
  .console { grid-template-columns: 1fr; }
  .cart-shelf { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .cart-shelf { display: flex; overflow-x: auto; margin-inline: calc(var(--gutter) * -1); padding: 18px var(--gutter) 8px; scrollbar-width: none; }
  .cartridge { flex: 0 0 132px; }
  .screen-bezel { padding: 10px 10px 28px; }
  .screen-off { inset: 10px 10px 28px; }
}

/* ---------- playground ---------- */
.fx { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 48px; align-items: center; }
.fx-controls { display: grid; gap: 18px; margin-top: 26px; }
.opt-label { display: block; margin-bottom: 8px; }
.opt-row { display: flex; flex-wrap: wrap; gap: 6px; }
.fx-stage { padding: 12px; }
.fx-stage canvas { width: 100%; aspect-ratio: 4 / 5; background: #000; touch-action: none; cursor: ew-resize; image-rendering: pixelated; }
.fx-hint { margin: 10px 0 0; font-size: 10px; }
.thumb-btn { width: 52px; height: 64px; padding: 0; border: 2px solid #3a3a3a; background: #111; }
.thumb-btn img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); }
.thumb-btn[aria-pressed='true'] { border-color: var(--white); box-shadow: -3px 0 0 var(--sky), 3px 0 0 var(--fire); }
.thumb-btn[aria-pressed='true'] img { filter: none; }
input[type='range'] { width: 100%; accent-color: var(--fire); }
@media (max-width: 900px) { .fx { grid-template-columns: 1fr; } .fx-stage { order: -1; } }

/* ---------- pipeline ---------- */
.how .lede { margin: 18px 0 40px; }
.pipe { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: p; }
.pipe li { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 22px 22px 26px; border: var(--px) solid var(--white); margin-left: calc(var(--px) * -1); background: var(--black); }
.pipe li:first-child { margin-left: 0; }
.pipe b { font: 400 12px/1 var(--f-hud); color: var(--fire); }
.pipe span { font: 700 26px/1 var(--f-display); color: var(--white); }
.pipe small { font-size: 15px; color: var(--bone); line-height: 1.45; }
/* a packet travelling along the pipe */
.pipe::after { content: ''; position: absolute; }
.pipe { position: relative; }
.pipe li::after {
  content: '';
  position: absolute;
  top: -9px;
  left: 0;
  width: 14px;
  height: 14px;
  background: var(--white);
  box-shadow: -3px 0 0 var(--sky), 3px 0 0 var(--fire);
  animation: packet 4s steps(24) infinite;
  animation-delay: calc(var(--i, 0) * 1s);
  opacity: 0;
}
.pipe li:nth-child(1) { --i: 0; } .pipe li:nth-child(2) { --i: 1; } .pipe li:nth-child(3) { --i: 2; } .pipe li:nth-child(4) { --i: 3; }
@keyframes packet { 0% { left: 0; opacity: 1; } 24% { left: calc(100% - 14px); opacity: 1; } 25%, 100% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .pipe li::after { animation: none; } }
@media (max-width: 860px) { .pipe { grid-template-columns: 1fr 1fr; } .pipe li { margin: 0 0 calc(var(--px) * -1) calc(var(--px) * -1); } }
@media (max-width: 520px) { .pipe { grid-template-columns: 1fr; } .pipe li { margin-left: 0; } }