:root {
  --black: #05070a;
  --green: #6cff7b;
  --green-dim: #1dbb4d;
  --amber: #ffd166;
  --blue: #62d8ff;
  --pink: #ff6bb5;
  --ink: #d8ffe0;
  --stage-width: min(1024px, calc(100vw - 8px));
  --stage-height: 768px;
  --stage-margin-y: 4px;
  --stage-scale: 1;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  min-height: 100%;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--black);
  font-family: "Courier New", Courier, monospace;
  letter-spacing: 0;
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.06) 0,
      rgba(255, 255, 255, 0.06) 1px,
      transparent 1px,
      transparent 5px
    );
  mix-blend-mode: screen;
  opacity: 0.22;
}

a {
  color: inherit;
}

button {
  font: inherit;
  touch-action: manipulation;
}

a,
input,
.screen {
  touch-action: manipulation;
}

[hidden] {
  display: none !important;
}

.starfield {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
}

.screen {
  position: relative;
  z-index: 1;
  width: var(--stage-width);
  height: var(--stage-height);
  min-height: 0;
  margin: var(--stage-margin-y) auto;
  padding: clamp(18px, 3vw, 36px);
  border: 2px solid var(--green);
  box-shadow: 0 0 0 4px rgba(108, 255, 123, 0.15), inset 0 0 40px rgba(29, 187, 77, 0.16);
  background: rgba(2, 11, 6, 0.78);
}

.menu-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 34px;
  overflow: hidden;
}

body[data-title-screen] .menu-screen {
  justify-content: flex-start;
  gap: 24px;
  padding-top: clamp(26px, 6vh, 54px);
  padding-bottom: clamp(260px, 42vh, 360px);
  background: rgba(2, 11, 6, 0.35);
  box-shadow: 0 0 0 4px rgba(108, 255, 123, 0.12), inset 0 0 28px rgba(29, 187, 77, 0.08);
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.top-nav a {
  min-height: 40px;
  padding: 10px 12px;
  border: 1px solid var(--green-dim);
  color: var(--green);
  text-decoration: none;
  text-transform: uppercase;
  background: rgba(29, 187, 77, 0.1);
}

.top-nav a:focus-visible,
.top-nav a:hover,
.program-card:focus-visible,
.program-card:hover,
.grid-cell:focus-visible,
.grid-cell:hover {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.masthead {
  max-width: 860px;
}

.system-line,
.tagline,
.program-meta,
.feedback {
  margin: 0;
  color: var(--blue);
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 14px;
  color: var(--green);
  font-size: clamp(2.3rem, 8vw, 5.8rem);
  line-height: 0.95;
  text-shadow: 0 0 16px rgba(108, 255, 123, 0.64);
}

.tagline {
  font-size: clamp(1rem, 2.4vw, 1.35rem);
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.rolling-program-grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(320px, 42%);
  grid-template-columns: none;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 4px 18px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--green-dim) rgba(0, 0, 0, 0.45);
  -webkit-overflow-scrolling: touch;
}

.rolling-program-grid .program-card {
  scroll-snap-align: start;
}

.rolling-program-grid::-webkit-scrollbar {
  height: 10px;
}

.rolling-program-grid::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.45);
}

.rolling-program-grid::-webkit-scrollbar-thumb {
  background: var(--green-dim);
}

.start-field {
  appearance: none;
  align-self: center;
  width: fit-content;
  min-height: 58px;
  padding: 12px 18px;
  border: 2px solid var(--green);
  border-radius: 0;
  color: var(--green);
  background:
    linear-gradient(90deg, rgba(108, 255, 123, 0.14), transparent),
    rgba(0, 0, 0, 0.42);
  box-shadow: 0 0 18px rgba(108, 255, 123, 0.22);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}

.start-field:focus-visible,
.start-field:hover {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  color: var(--amber);
  border-color: var(--amber);
}

.start-field.starting {
  color: var(--amber);
  border-color: var(--amber);
  pointer-events: none;
}

.operator-grid {
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  max-width: 880px;
}

.program-card {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 8px;
  min-height: 128px;
  padding: 18px;
  border: 2px solid var(--green-dim);
  color: var(--ink);
  text-decoration: none;
  background:
    linear-gradient(90deg, rgba(108, 255, 123, 0.14), transparent),
    rgba(0, 0, 0, 0.36);
}

.program-card.launching {
  color: var(--amber);
  border-color: var(--amber);
  pointer-events: none;
}

.program-card.locked {
  opacity: 0.5;
}

.program-code {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid var(--amber);
  color: var(--amber);
  font-size: 1.8rem;
}

.program-title {
  align-self: end;
  color: var(--green);
  min-width: 0;
  font-size: clamp(1.25rem, 2.2vw, 1.85rem);
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.program-meta {
  grid-column: 2;
  align-self: start;
  font-size: 0.9rem;
}

.game-screen {
  display: flex;
  flex-direction: column;
  background: rgba(3, 8, 112, 0.9);
  border-color: var(--ink);
  box-shadow: 0 0 0 4px rgba(255, 107, 181, 0.18), inset 0 0 34px rgba(3, 5, 58, 0.72);
}

body[data-game="plus"],
body[data-game="minus"],
body[data-game="multiply"],
body[data-game="divide"] {
  --ink: #e7ffe4;
  --blue: #7cdbe8;
  --pink: #2fbf8f;
  --green: #8df58a;
  --green-dim: #42b883;
  --amber: #ffd86b;
}

body[data-game="plus"] .game-screen,
body[data-game="minus"] .game-screen,
body[data-game="multiply"] .game-screen,
body[data-game="divide"] .game-screen {
  background: rgba(4, 42, 46, 0.92);
  border-color: rgba(231, 255, 228, 0.9);
  box-shadow: 0 0 0 4px rgba(66, 184, 131, 0.16), inset 0 0 34px rgba(0, 20, 24, 0.72);
}

.game-panel {
  display: grid;
  gap: clamp(14px, 2.5vw, 24px);
  margin: auto 0;
}

.mission-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.mission-header h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4rem);
}

.scoreboard {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  min-width: min(100%, 270px);
  color: var(--amber);
  text-transform: uppercase;
}

.scoreboard span {
  padding: 10px 12px;
  border: 1px solid var(--amber);
  background: rgba(255, 209, 102, 0.08);
}

.scoreboard .supplies-track {
  min-width: 128px;
}

#supplies {
  color: var(--amber);
}

.equation {
  min-height: 66px;
  padding: 12px clamp(14px, 4vw, 28px);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  color: var(--ink);
  font-size: clamp(1.5rem, 5vw, 3.25rem);
  line-height: 1;
  text-align: center;
  text-shadow: 0 0 16px rgba(108, 255, 123, 0.5);
  text-transform: uppercase;
}

.unknown {
  color: var(--pink);
}

.number-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border: 3px double var(--pink);
  background: rgba(10, 5, 78, 0.88);
}

.summary-panel {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 14px;
  min-height: min(48vh, 360px);
  border: 3px double var(--amber);
  color: var(--ink);
  background: rgba(10, 5, 78, 0.88);
  text-align: center;
  text-transform: uppercase;
}

.summary-line {
  margin: 0;
  font-size: clamp(1.1rem, 3vw, 1.7rem);
}

.summary-line strong {
  color: var(--amber);
}

.passenger-game {
  background: rgba(3, 13, 22, 0.92);
}

.passenger-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: clamp(6px, 1.4vh, 10px);
  height: 100%;
}

.passenger-scene {
  position: relative;
  --track-y: 52%;
  align-self: stretch;
  min-height: 0;
  overflow: hidden;
  border: 3px double var(--blue);
  background: rgba(1, 5, 14, 0.84);
}

.station-layer,
.train-layer {
  position: absolute;
  image-rendering: pixelated;
  user-select: none;
  pointer-events: none;
}

.station-layer {
  left: 50%;
  top: var(--track-y);
  z-index: 1;
  width: min(112%, 1120px);
  transform: translate(-50%, -50%);
}

.train-layer {
  left: 50%;
  top: var(--track-y);
  z-index: 4;
  width: min(92%, 920px);
  transform: translate(72vw, -50%);
  transition: transform 5.4s ease-in-out;
}

.train-layer.train-hidden {
  visibility: hidden;
  transition: none;
}

.train-layer.train-arrived {
  transform: translate(-50%, -50%);
}

.train-layer.train-exit {
  transform: translate(-142vw, -50%);
  transition-duration: 1.5s;
  transition-timing-function: cubic-bezier(0.7, 0, 0.84, 0);
}

.passenger-layer {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.passenger-layer.reveal-passengers {
  z-index: 5;
}

.passenger-layer.exiting-passengers {
  z-index: 5;
}

.passenger-icon {
  position: absolute;
  left: var(--from-x);
  top: var(--from-y);
  width: clamp(22px, 4.2vw, 42px);
  height: clamp(28px, 5vw, 50px);
  opacity: 0;
  border: 2px solid #ff3838;
  box-shadow: 0 0 10px rgba(255, 56, 56, 0.52);
  transform: translate(-50%, -50%);
  transition:
    left 1.85s ease-in,
    top 1.85s ease-in,
    opacity 0.5s linear,
    transform 1.85s ease-in;
}

.passenger-icon::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 52%;
  width: 18px;
  height: 24px;
  background:
    linear-gradient(#0a1018, #0a1018) 5px 0 / 8px 5px,
    linear-gradient(var(--ink), var(--ink)) 3px 5px / 12px 7px,
    linear-gradient(var(--blue), var(--blue)) 5px 7px / 8px 4px,
    linear-gradient(var(--ink), var(--ink)) 1px 12px / 16px 8px,
    linear-gradient(var(--green), var(--green)) 0 15px / 5px 8px,
    linear-gradient(var(--green), var(--green)) 13px 15px / 5px 8px,
    linear-gradient(var(--ink), var(--ink)) 3px 20px / 5px 9px,
    linear-gradient(var(--ink), var(--ink)) 10px 20px / 5px 9px;
  background-repeat: no-repeat;
  image-rendering: pixelated;
  transform: translate(-50%, -50%) scale(1.35);
}

.passenger-icon.visible,
.passenger-icon.onboard,
.passenger-icon.exiting {
  opacity: 1;
}

.passenger-icon.to-train {
  left: var(--dock-x);
  top: var(--dock-y);
  opacity: 1;
  transform: translate(-50%, -50%) scale(0.62);
}

.passenger-icon.onboard {
  opacity: 0;
  border-color: var(--amber);
  box-shadow: 0 0 10px rgba(255, 209, 102, 0.6);
}

.passenger-layer.reveal-passengers .passenger-icon.onboard {
  opacity: 1;
}

.passenger-icon.exiting {
  border-color: var(--pink);
  box-shadow: 0 0 10px rgba(255, 107, 181, 0.55);
}

.passenger-icon.leaving {
  left: var(--exit-x);
  top: var(--exit-y);
  opacity: 1;
}

.passenger-icon.gone {
  opacity: 0;
}

.flash-message {
  position: absolute;
  left: 50%;
  top: 12%;
  z-index: 6;
  padding: 10px 16px;
  border: 2px solid var(--amber);
  color: var(--amber);
  background: rgba(0, 0, 0, 0.76);
  font-size: clamp(1.1rem, 3vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  transform: translateX(-50%);
  animation: flashText 0.72s steps(2, end) infinite;
}

.stage-result {
  position: absolute;
  left: 50%;
  top: 18%;
  z-index: 7;
  padding: 10px 18px;
  color: var(--green);
  background: rgba(0, 0, 0, 0.72);
  font-size: clamp(2rem, 7vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  text-shadow: 0 0 16px rgba(108, 255, 123, 0.7);
  transform: translateX(-50%);
  white-space: nowrap;
}

.stage-result.correct {
  color: var(--green);
  text-shadow: 0 0 16px rgba(108, 255, 123, 0.7);
}

.stage-result.wrong {
  color: var(--pink);
  text-shadow: 0 0 16px rgba(255, 107, 181, 0.7);
}

.ready-field {
  appearance: none;
  position: absolute;
  left: 50%;
  top: 42%;
  z-index: 7;
  width: fit-content;
  min-height: 58px;
  padding: 12px 18px;
  border: 2px solid var(--green);
  border-radius: 0;
  color: var(--green);
  background:
    linear-gradient(90deg, rgba(108, 255, 123, 0.14), transparent),
    rgba(0, 0, 0, 0.78);
  box-shadow: 0 0 18px rgba(108, 255, 123, 0.22);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.ready-field:focus-visible,
.ready-field:hover {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  color: var(--amber);
  border-color: var(--amber);
}

@keyframes flashText {
  50% {
    opacity: 0.25;
  }
}

.counter-console {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto auto;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border: 2px solid var(--green-dim);
  background: rgba(0, 0, 0, 0.42);
}

.counter-readout {
  display: grid;
  gap: 4px;
}

.question,
.result-line {
  margin: 0;
  color: var(--blue);
  text-transform: uppercase;
}

.answer-display {
  min-height: 42px;
  padding: 4px 10px;
  border: 1px solid var(--amber);
  color: var(--amber);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 42px);
  gap: 5px;
}

.keypad button,
.command-button {
  min-height: 34px;
  border: 1px solid var(--green);
  color: var(--green);
  background: rgba(29, 187, 77, 0.12);
  cursor: pointer;
}

.keypad button:hover,
.keypad button:focus-visible,
.command-button:hover,
.command-button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.counter-actions {
  display: grid;
  gap: 8px;
}

.command-button {
  min-width: 112px;
  padding: 8px 12px;
  text-transform: uppercase;
}

.racer-game {
  background: rgba(2, 9, 18, 0.94);
}

.racer-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: 10px;
  height: 100%;
}

.racer-track {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 2px solid var(--blue);
  background:
    linear-gradient(rgba(98, 216, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, transparent 0 18%, rgba(98, 216, 255, 0.16) 18.2% 18.6%, transparent 18.8% 38%, rgba(98, 216, 255, 0.16) 38.2% 38.6%, transparent 38.8% 60%, rgba(98, 216, 255, 0.16) 60.2% 60.6%, transparent 60.8% 82%, rgba(98, 216, 255, 0.16) 82.2% 82.6%, transparent 82.8%),
    rgba(0, 0, 0, 0.4);
  background-size: 100% 34px, 100% 100%, 100% 100%;
  touch-action: none;
  user-select: none;
}

.racer-lanes {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(108, 255, 123, 0.72) 0 1px, transparent 1.5px);
  background-size: 46px 46px;
  /* Scrolled from space-racer.js so it matches the ship's speed. */
}

.racer-paused .racer-lanes {
  animation-play-state: paused;
}

.racer-distance-overlay {
  position: absolute;
  z-index: 1;
  top: 9%;
  left: 50%;
  display: grid;
  gap: 2px;
  min-width: 260px;
  padding: 12px 18px;
  transform: translate(-50%, -50%);
  text-align: center;
  text-transform: uppercase;
  pointer-events: none;
}

.racer-distance-overlay span {
  color: var(--blue);
  font-size: 1rem;
  text-shadow: 0 0 10px rgba(98, 216, 255, 0.55);
}

.racer-distance-overlay strong {
  color: var(--green);
  font-size: 4.2rem;
  line-height: 1;
  text-shadow: 0 0 18px rgba(108, 255, 123, 0.85);
}

.racer-pause-button {
  position: absolute;
  z-index: 6;
  top: 10px;
  right: 10px;
  width: 48px;
  height: 40px;
  border: 2px solid var(--green);
  background: rgba(0, 0, 0, 0.62);
  color: var(--green);
  font-family: inherit;
  font-size: 1.05rem;
  line-height: 1;
  box-shadow: 0 0 12px rgba(108, 255, 123, 0.28);
}

.racer-pause-button:hover,
.racer-pause-button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.racer-ship-wrap {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 7%;
  width: 86px;
  height: 108px;
  border: 4px solid var(--green);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transform: translateX(-50%);
  transition: left 0.08s linear, border-color 0.15s linear, box-shadow 0.15s linear;
  box-shadow: 0 0 18px rgba(108, 255, 123, 0.65);
}

.racer-ship {
  width: 78px;
  image-rendering: pixelated;
}

.shield-green {
  border-color: var(--green);
}

.shield-yellow {
  border-color: var(--amber);
  box-shadow: 0 0 18px rgba(255, 209, 102, 0.68);
}

.shield-red,
.shield-critical {
  border-color: #ff3838;
  box-shadow: 0 0 18px rgba(255, 56, 56, 0.72);
}

.ship-hit {
  animation: racer-hit 0.38s steps(2, end);
}

.racer-obstacle {
  position: absolute;
  z-index: 3;
  width: 58px;
  transform: translateX(-50%);
}

.racer-obstacle img {
  display: block;
  width: 100%;
  image-rendering: pixelated;
}

/* Turn signals: blink on the side a ship is about to turn toward. */
.racer-blinker {
  position: absolute;
  top: 38%;
  width: 14px;
  height: 18px;
  background: var(--amber);
  filter: drop-shadow(0 0 6px rgba(255, 209, 102, 0.95));
  opacity: 0;
  pointer-events: none;
}

.racer-blinker.left {
  left: -16px;
  clip-path: polygon(100% 0, 0 50%, 100% 100%);
}

.racer-blinker.right {
  right: -16px;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.signal-left .racer-blinker.left,
.signal-right .racer-blinker.right {
  animation: racer-blink 0.32s linear infinite;
}

@keyframes racer-blink {
  0%, 55% { opacity: 1; }
  56%, 100% { opacity: 0; }
}

.racer-station {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: -46%;
  width: 360px;
  transform: translateX(-50%);
  filter: drop-shadow(0 0 18px rgba(98, 216, 255, 0.55));
  pointer-events: none;
}

.racer-station img {
  width: 100%;
  image-rendering: pixelated;
}

.racer-console {
  display: grid;
  grid-template-columns: minmax(210px, 300px) 1fr;
  gap: 18px;
  align-items: end;
  border: 2px solid var(--green);
  padding: 10px;
  background: rgba(0, 0, 0, 0.46);
}

.racer-game .scoreboard span:nth-child(2) {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(98, 216, 255, 0.1);
}

.racer-steering-control {
  display: grid;
  gap: 6px;
  max-width: 300px;
  color: var(--blue);
  text-transform: uppercase;
}

.racer-steer-pad {
  position: relative;
  width: 100%;
  height: 48px;
  border: 2px solid var(--green);
  background:
    linear-gradient(90deg, rgba(108, 255, 123, 0.2), transparent 46% 54%, rgba(108, 255, 123, 0.2)),
    rgba(0, 0, 0, 0.55);
  touch-action: none;
  box-shadow: inset 0 0 14px rgba(108, 255, 123, 0.18);
}

.racer-steer-zero {
  position: absolute;
  top: 7px;
  bottom: 7px;
  left: 50%;
  border-left: 2px solid var(--amber);
  opacity: 0.85;
}

.racer-steer-puck {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 34px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--amber);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 14px rgba(255, 218, 89, 0.65);
}

.racer-steer-slider {
  width: 100%;
  height: 34px;
  margin: 0;
  background: transparent;
  accent-color: var(--green);
  -webkit-appearance: none;
}

.racer-steer-slider::-webkit-slider-runnable-track {
  height: 12px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: rgba(108, 255, 123, 0.24);
}

.racer-steer-slider::-webkit-slider-thumb {
  width: 34px;
  height: 34px;
  margin-top: -12px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--amber);
  -webkit-appearance: none;
  box-shadow: 0 0 14px rgba(255, 218, 89, 0.65);
}

.racer-steer-slider::-moz-range-track {
  height: 12px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: rgba(108, 255, 123, 0.24);
}

.racer-steer-slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 14px rgba(255, 218, 89, 0.65);
}

.racer-gauges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: end;
  color: var(--amber);
  text-transform: uppercase;
}

.racer-fuel-meter {
  grid-column: 1 / -1;
  height: 18px;
  border: 2px solid var(--blue);
  background: rgba(0, 0, 0, 0.58);
  box-shadow: 0 0 12px rgba(98, 216, 255, 0.28);
}

.racer-fuel-meter span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), #8ee8ff);
  box-shadow: 0 0 14px rgba(98, 216, 255, 0.65);
  transition: width 0.18s linear;
  animation: racer-fuel-pulse 1.1s steps(2, end) infinite;
}

.pitstop-panel {
  position: absolute;
  inset: 84px 46px 88px;
  z-index: 5;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.66);
}

.pitstop-card {
  width: min(560px, 90%);
  padding: 22px;
  border: 2px solid var(--amber);
  background: rgba(0, 0, 0, 0.88);
  box-shadow: 0 0 22px rgba(255, 209, 102, 0.36);
}

.pitstop-card h2 {
  margin: 8px 0 14px;
  color: var(--green);
  text-transform: uppercase;
}

.pitstop-question {
  color: var(--amber);
  font-size: 2rem;
}

.pitstop-reward {
  margin: 0;
  color: var(--blue);
  font-size: 1.25rem;
  text-transform: uppercase;
}

.pitstop-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--ink);
  text-transform: uppercase;
}

.pitstop-summary span {
  padding: 6px 8px;
  border: 1px solid var(--green);
  background: rgba(108, 255, 123, 0.1);
}

.pitstop-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pitstop-launch {
  margin-top: 18px;
  border-color: var(--amber);
  color: var(--amber);
}

.pitstop-card h2 {
  margin: 4px 0 10px;
}

.pitstop-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
}

.pitstop-picker-label {
  color: var(--blue);
  text-transform: uppercase;
}

.cargo-pick {
  min-height: 40px;
  padding: 6px 12px;
  border: 1px solid var(--green);
  color: var(--green);
  background: rgba(29, 187, 77, 0.12);
  font-size: 1rem;
  text-transform: uppercase;
  cursor: pointer;
}

.cargo-pick[aria-pressed="true"] {
  color: var(--black);
  background: var(--green);
  box-shadow: 0 0 12px rgba(108, 255, 123, 0.55);
}

.cargo-pick:disabled {
  opacity: 0.35;
  cursor: default;
}

.cargo-pick:hover:not(:disabled),
.cargo-pick:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.pitstop-question {
  margin: 10px 0;
}

.pitstop-choices .command-button {
  min-width: 90px;
  min-height: 48px;
  font-size: 1.4rem;
}

.pitstop-choices .command-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.pitstop-choices .command-button.answer-correct {
  opacity: 1;
  color: var(--black);
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 0 16px rgba(108, 255, 123, 0.8);
  animation: racer-answer-pop 0.35s ease-out;
}

.pitstop-choices .command-button.answer-wrong {
  opacity: 1;
  color: var(--black);
  background: #ff3838;
  border-color: #ff3838;
  box-shadow: 0 0 16px rgba(255, 56, 56, 0.8);
  animation: racer-answer-shake 0.4s steps(4, end);
}

.pitstop-result {
  min-height: 1.6em;
  margin: 10px 0 4px;
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pitstop-result.result-correct {
  color: var(--green);
  text-shadow: 0 0 12px rgba(108, 255, 123, 0.7);
}

.pitstop-result.result-wrong {
  color: #ff6b6b;
  text-shadow: 0 0 12px rgba(255, 56, 56, 0.6);
}

.cargo-bay {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 10px;
  border: 2px dashed var(--blue);
  background: rgba(98, 216, 255, 0.06);
}

.cargo-label {
  color: var(--blue);
  text-transform: uppercase;
}

.cargo-label strong {
  display: block;
  color: var(--amber);
  font-size: 1.2rem;
}

.cargo-slots {
  display: grid;
  grid-template-columns: repeat(5, 48px);
  gap: 8px;
}

.cargo-slot {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(98, 216, 255, 0.45);
  background: rgba(0, 0, 0, 0.5);
  font-size: 1.6rem;
}

.cargo-slot.filled {
  border-color: var(--amber);
  background: rgba(255, 209, 102, 0.12);
  animation: racer-answer-pop 0.35s ease-out;
}

.pitstop-launch {
  margin-top: 12px;
}

@keyframes racer-answer-pop {
  0% { transform: scale(0.8); }
  60% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes racer-answer-shake {
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.racer-station-warning {
  position: absolute;
  z-index: 5;
  top: 96px;
  display: grid;
  justify-items: center;
  gap: 2px;
  transform: translateX(-50%);
  pointer-events: none;
  animation: racer-warning-flash 0.5s steps(2, end) infinite;
}

.racer-station-warning svg {
  filter: drop-shadow(0 0 10px rgba(255, 209, 102, 0.85));
}

.racer-station-warning span {
  padding: 2px 6px;
  color: var(--amber);
  background: rgba(0, 0, 0, 0.7);
  font-weight: 700;
  text-transform: uppercase;
}

.racer-station-warning::after {
  content: "";
  position: absolute;
  top: 84px;
  left: 50%;
  width: 2px;
  height: 110px;
  background: linear-gradient(var(--amber), transparent);
  transform: translateX(-50%);
}

@keyframes racer-warning-flash {
  50% {
    opacity: 0.2;
  }
}

.racer-game .scoreboard {
  flex-wrap: nowrap;
  gap: 6px;
}

.racer-game .scoreboard span {
  white-space: nowrap;
}

.racer-game .mission-header .system-line {
  white-space: nowrap;
}

.racer-game .scoreboard span {
  padding: 8px 7px;
}

.pitstop-summary span {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 209, 102, 0.08);
}

.pitstop-summary span.hud-fuel {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(98, 216, 255, 0.1);
}

.racer-game .scoreboard span.hud-empty,
.pitstop-summary span.hud-empty {
  border-color: #ff3838;
  color: #ff6b6b;
  animation: racer-warning-flash 0.6s steps(2, end) infinite;
}

.hud-shield {
  display: inline-flex;
  align-items: center;
}

.hud-shield span.shield-boxes {
  display: inline-flex;
  gap: 4px;
  padding: 0;
  border: 0;
  background: none;
}

.racer-game .hud-shield .shield-boxes span.shield-box {
  --shield-color: var(--green);
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 2px solid var(--shield-color);
  background: #000;
  font-size: 0.85rem;
  line-height: 1;
}

.racer-game .hud-shield .shield-boxes span.shield-box.filled {
  background: var(--shield-color);
  box-shadow: 0 0 8px var(--shield-color);
}

.racer-game .hud-shield .shield-boxes span.shield-level-1 { --shield-color: #ff3838; }
.racer-game .hud-shield .shield-boxes span.shield-level-2 { --shield-color: #ff8a3d; }
.racer-game .hud-shield .shield-boxes span.shield-level-3 { --shield-color: #ffd166; }
.racer-game .hud-shield .shield-boxes span.shield-level-4 { --shield-color: #6cff7b; }

.racer-game .scoreboard span.hud-shield,
.pitstop-summary span.hud-shield {
  padding: 4px 6px;
}

.racer-game .scoreboard {
  font-size: 0.92rem;
}

@keyframes racer-stars {
  from {
    background-position: 0 0;
  }

  to {
    background-position: 0 46px;
  }
}

@keyframes racer-hit {
  50% {
    opacity: 0.25;
    transform: translateX(-50%) scale(1.08);
  }
}

@keyframes racer-fuel-pulse {
  50% {
    filter: brightness(1.45);
    box-shadow: 0 0 22px rgba(98, 216, 255, 0.95);
  }
}

.test-game {
  background: rgba(2, 9, 18, 0.92);
}

.test-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 10px;
  height: 100%;
}

.test-workspace {
  position: relative;
  min-height: 0;
  border: 2px solid var(--blue);
  padding: 12px;
  overflow: hidden;
  background:
    linear-gradient(rgba(98, 216, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(98, 216, 255, 0.08) 1px, transparent 1px),
    rgba(0, 0, 0, 0.36);
  background-size: 32px 32px;
}

.test-layout {
  display: grid;
  gap: 12px;
  height: 100%;
}

.test-layout.two-col {
  grid-template-columns: 1fr 1fr;
}

.line-card {
  min-height: 0;
  padding: 14px;
  border: 2px solid var(--green-dim);
  background: rgba(0, 0, 0, 0.46);
  overflow: auto;
}

.center-card {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 18px;
  text-align: center;
}

.prototype-big {
  color: var(--green);
  font-size: clamp(1.6rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  text-shadow: 0 0 14px rgba(108, 255, 123, 0.55);
}

.typing-instruction {
  margin: 10px 0 8px;
  color: var(--amber);
  text-transform: uppercase;
}

.lunar-keys-field {
  display: grid;
  grid-template-rows: minmax(0, 1fr);
  height: 100%;
  min-height: 0;
}

.lunar-status-panel {
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 0;
}

.lunar-status-panel .prototype-big {
  font-size: clamp(3rem, 9vw, 6.2rem);
  line-height: 0.95;
}

.lunar-progress {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--blue);
  font-size: clamp(1.1rem, 2.8vw, 1.55rem);
  text-transform: uppercase;
}

.lunar-rounds {
  display: grid;
  grid-template-columns: repeat(6, 38px);
  gap: 8px;
}

.lunar-rounds span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 30px;
  border: 2px solid var(--blue);
  color: var(--green);
  background: rgba(0, 0, 0, 0.5);
  font-size: 1.15rem;
  line-height: 1;
}

.lunar-rounds span.complete {
  border-color: var(--green);
  box-shadow: 0 0 10px rgba(108, 255, 123, 0.55);
}

.lunar-input-dock {
  display: grid;
  max-width: 620px;
}

.lunar-keys-field.keyboard-active .lunar-status-panel {
  gap: 6px;
}

.lunar-keys-field.keyboard-active .typing-instruction {
  display: none;
}

.lunar-keys-field.keyboard-active .lunar-input-dock {
  max-width: 720px;
}

.lunar-keys-field:focus-within .typing-instruction,
.lunar-keys-field:focus-within .ascii-map {
  display: none;
}

.lunar-keys-field.keyboard-active .prototype-big {
  font-size: clamp(2.3rem, 6vw, 4rem);
}

.lunar-keys-field.keyboard-active .test-input {
  padding: 7px 10px;
  font-size: clamp(1.25rem, 3.5vw, 1.75rem);
}

.lunar-keys-field.keyboard-active .decay-bar {
  height: 18px;
}

.test-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.signal-code-card .command-button {
  min-width: 82px;
}

.signal-code-card {
  display: grid;
  place-items: center;
}

.signal-code-center {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 18px;
  width: 100%;
  min-height: 260px;
}

.signal-feedback-top {
  display: grid;
  gap: 12px;
  align-items: stretch;
  margin-bottom: 14px;
}

.signal-feedback-head,
.test-history-row {
  display: grid;
  grid-template-columns: minmax(130px, 1fr) repeat(3, 74px);
  gap: 8px;
  align-items: center;
}

.signal-feedback-head {
  color: var(--soft);
  text-transform: uppercase;
}

.signal-feedback-head span:not(:first-child),
.test-history-row span:not(:first-child) {
  text-align: center;
}

.signal-code-mystery {
  display: grid;
  grid-template-columns: repeat(4, 46px);
  gap: 10px;
  color: var(--amber);
  font-size: 2rem;
  line-height: 1;
}

.signal-code-slot {
  display: grid;
  place-items: center;
  min-height: 42px;
  border-bottom: 4px solid var(--green);
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.75);
}

.signal-code-slot-revealed {
  color: var(--green);
  text-shadow: 0 0 14px rgba(96, 255, 112, 0.95);
}

.signal-code-instruction {
  margin: 0;
  color: var(--amber);
  text-transform: uppercase;
}

.signal-entry-panel {
  display: grid;
  gap: 8px;
  align-items: start;
  width: min(100%, 350px);
}

.signal-symbol-controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 0;
}

.signal-symbol-controls .command-button {
  min-width: 0;
  width: 100%;
}

.signal-action-stack {
  display: grid;
  gap: 6px;
}

.signal-action-stack .command-button {
  width: 100%;
  min-width: 0;
}

.signal-action-stack [data-action="scan"] {
  min-height: 74px;
  font-size: clamp(1.35rem, 2.9vw, 2rem);
}

.signal-action-stack [data-action="next"] {
  display: none;
  min-height: 86px;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
}

.signal-action-stack [data-action="clear"] {
  min-height: 34px;
  padding-block: 5px;
}

.signal-code-solved .signal-symbol-controls,
.signal-code-solved [data-action="scan"],
.signal-code-solved [data-action="clear"] {
  display: none;
}

.signal-code-solved .signal-action-stack [data-action="next"] {
  display: block;
}

.hint-toggle {
  display: inline-grid;
  grid-template-columns: 14px max-content;
  align-items: center;
  justify-self: start;
  gap: 6px;
  padding: 2px 0;
  width: max-content;
  max-width: none;
  border: 0;
  color: var(--amber);
  font-size: 0.78rem;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
}

.hint-toggle input {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--green);
}

.test-history {
  display: grid;
  gap: 7px;
  color: var(--amber);
  font-size: clamp(0.95rem, 2vw, 1.2rem);
}

.test-history-row {
  padding: 7px;
  border: 1px solid var(--blue);
  color: var(--amber);
}

.signal-history-guess {
  color: var(--amber);
}

.signal-hint-check {
  color: var(--green);
  text-shadow: 0 0 12px rgba(96, 255, 112, 0.85);
}

.key-echo-card {
  position: relative;
  gap: 16px;
  padding-right: min(28vw, 240px);
}

.key-echo-started #play-cue {
  display: none;
}

.key-echo-coach {
  min-height: 56px;
  color: var(--amber);
  font-size: clamp(1.15rem, 3vw, 2rem);
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.68);
}

.echo-coach-pop {
  animation: echo-coach-pop 0.34s steps(2, end);
}

.echo-countdown-pop {
  animation: echo-countdown-pop 0.48s ease-out;
}

.key-echo-stats {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  justify-items: start;
  gap: 10px;
  width: min(24vw, 210px);
  color: var(--blue);
  font-size: clamp(0.8rem, 1.8vw, 1rem);
  text-transform: uppercase;
  text-align: left;
}

.key-echo-stats span {
  white-space: nowrap;
}

.echo-error-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 5px;
  border-radius: 50%;
  background: #ff3838;
  box-shadow: 0 0 10px rgba(255, 56, 56, 0.82);
  vertical-align: middle;
}

.echo-error-none {
  color: var(--green);
}

.key-echo-input {
  min-height: 72px;
  color: var(--amber);
  background: transparent;
  font-size: clamp(1.8rem, 5vw, 3.3rem);
  line-height: 1.1;
  text-align: center;
  text-shadow: 0 0 16px rgba(255, 209, 102, 0.72);
}

.key-echo-shout-flash {
  color: var(--green);
  animation: echo-shout-flash 0.95s steps(2, end) 2;
}

.key-echo-capture {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 24px;
  height: 24px;
  border: 0;
  opacity: 0.01;
  background: transparent;
  color: transparent;
  caret-color: transparent;
  font-size: 16px;
}

@keyframes echo-coach-pop {
  50% {
    color: var(--green);
    transform: scale(1.04);
  }
}

@keyframes echo-countdown-pop {
  0% {
    color: var(--green);
    transform: scale(1.35);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes echo-shout-flash {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.32;
    transform: scale(1.08);
  }
}

.test-input {
  width: 100%;
  margin: 0;
  padding: 10px;
  border: 2px solid var(--amber);
  color: var(--amber);
  background: rgba(0, 0, 0, 0.72);
  font: inherit;
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.decay-bar {
  height: 24px;
  border: 2px solid var(--green);
  background: rgba(0, 0, 0, 0.58);
}

.decay-bar span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--green);
}

.lunar-keys-field .ascii-map {
  margin: 0;
}

.lunar-keys-field.keyboard-active .ascii-map {
  display: none;
}

.land-layout {
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.7fr);
}

.land-map-card {
  display: grid;
  place-items: center;
  overflow: hidden;
}

#land-map {
  width: 100%;
  max-height: 100%;
  aspect-ratio: 8 / 5;
  border: 2px solid var(--green);
  background: rgba(0, 0, 0, 0.66);
  image-rendering: pixelated;
  touch-action: none;
  cursor: crosshair;
  box-shadow: inset 0 0 34px rgba(0, 0, 0, 0.72), 0 0 18px rgba(108, 255, 123, 0.28);
}

.land-control-card {
  display: grid;
  align-content: start;
  gap: 12px;
}

.land-control-card .prototype-big {
  font-size: clamp(1.8rem, 3.4vw, 3rem);
}

.land-readout {
  margin: 0;
  color: var(--blue);
  text-transform: uppercase;
}

.land-readout strong {
  color: var(--amber);
}

.land-controls {
  display: grid;
  grid-template-columns: 1fr;
}

.land-legend {
  display: grid;
  gap: 8px;
  color: var(--soft);
  font-size: clamp(0.78rem, 1.4vw, 0.95rem);
  text-transform: uppercase;
}

.land-legend span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.land-swatch {
  display: inline-block;
  width: 22px;
  height: 14px;
  border: 1px solid rgba(213, 255, 218, 0.65);
  box-shadow: 0 0 8px rgba(108, 255, 123, 0.2);
}

.land-low {
  background: #1d532d;
}

.land-high {
  background: #eeda88;
}

.land-path {
  background: #8b592d;
}

.land-water {
  background: #25808f;
}

.land-note {
  margin: 6px 0 0;
  color: var(--amber);
  line-height: 1.45;
}

.ascii-map,
.line-card pre {
  color: var(--blue);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  white-space: pre-wrap;
}

.bond-zone {
  display: grid;
  place-items: center;
  min-height: 120px;
  margin: 16px 0;
  border: 2px dashed var(--amber);
  color: var(--amber);
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.bond-game-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 14px;
  align-items: stretch;
  overflow: hidden;
}

.bond-synth-panel {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.bond-synth-panel .prototype-big {
  font-size: clamp(1.45rem, 4vw, 2.7rem);
}

.bond-synth-panel .number-orb {
  width: 60px;
  height: 60px;
}

.bond-diagram-panel {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--blue);
  background: rgba(0, 0, 0, 0.42);
}

.bond-lab-bg {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -95px;
  z-index: 0;
  height: calc(58% + 95px);
  background: linear-gradient(180deg, rgba(0, 8, 18, 0), rgba(0, 8, 18, 0.15) 20%, rgba(0, 8, 18, 0.26)),
    url("../assets/images/chem_lab.png") center bottom / min(100%, 980px) auto no-repeat;
  opacity: 0.72;
  pointer-events: none;
}

.bond-diagram-title {
  color: var(--blue);
  font-size: 0.85rem;
  text-align: center;
}

.bond-diagram {
  position: relative;
  width: 100%;
  min-height: 260px;
  margin-top: 10px;
}

.diagram-node {
  position: absolute;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border: 3px solid var(--blue);
  border-radius: 50%;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.72);
  font-size: 2rem;
  transform: translate(-50%, -50%);
}

.diagram-total {
  left: 50%;
  top: 20%;
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: 0 0 12px rgba(255, 94, 180, 0.42);
}

.diagram-part-left {
  left: 30%;
  top: 74%;
}

.diagram-part-right {
  left: 70%;
  top: 74%;
}

.diagram-element {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 12px rgba(96, 255, 112, 0.42);
}

.diagram-unknown {
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: 0 0 12px rgba(255, 209, 102, 0.42);
}

.diagram-compound {
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: 0 0 12px rgba(255, 94, 180, 0.42);
}

.diagram-subcompound {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 12px rgba(98, 216, 255, 0.42);
}

.diagram-line {
  position: absolute;
  left: 50%;
  top: 31%;
  width: 3px;
  height: 118px;
  background: var(--ink);
  transform-origin: top center;
}

.diagram-line-left {
  transform: rotate(28deg);
}

.diagram-line-right {
  transform: rotate(-28deg);
}

.top-bond-zone {
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
}

.top-bond-zone.bond-correct {
  border-color: var(--green);
  box-shadow: 0 0 18px rgba(108, 255, 123, 0.48);
}

.bond-target-compound {
  color: var(--pink);
  text-shadow: 0 0 12px rgba(255, 94, 180, 0.55);
}

.bond-target-unknown {
  color: var(--amber);
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.55);
}

.bond-solved .top-bond-zone,
.bond-solved .bond-slot,
.bond-solved .diagram-node {
  animation: bond-success-flash 0.42s steps(2, end) infinite;
}

.bond-solved .diagram-line {
  background: var(--green);
  box-shadow: 0 0 14px rgba(96, 255, 112, 0.72);
}

.bond-slot {
  display: inline-grid;
  place-items: center;
  min-width: 56px;
  min-height: 48px;
  padding: 4px 10px;
  border: 2px solid rgba(255, 209, 102, 0.72);
  color: var(--amber);
  background: rgba(0, 0, 0, 0.42);
  box-shadow: 0 0 10px rgba(255, 209, 102, 0.26);
}

.bond-slot-element {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 10px rgba(96, 255, 112, 0.36);
}

.bond-slot-unknown {
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: 0 0 10px rgba(255, 209, 102, 0.36);
}

.bond-slot-compound {
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: 0 0 10px rgba(255, 94, 180, 0.36);
}

.bond-slot-subcompound {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 10px rgba(98, 216, 255, 0.36);
}

.bond-plus {
  margin: 0 10px;
  color: var(--ink);
}

.bond-flyer {
  position: fixed;
  z-index: 50;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 2px solid var(--amber);
  border-radius: 50%;
  color: var(--amber);
  background: rgba(0, 0, 0, 0.82);
  font: 700 1.45rem "Courier New", Courier, monospace;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: left 0.58s ease-in-out, top 0.58s ease-in-out, transform 0.58s ease-in-out;
  box-shadow: 0 0 16px rgba(255, 209, 102, 0.55);
}

.bond-token {
  min-width: 84px;
  min-height: 72px;
  border: 2px solid var(--green);
  color: var(--green);
  background: rgba(0, 0, 0, 0.58);
  font: inherit;
  font-size: 1.8rem;
  cursor: pointer;
}

.bond-token.unresolved {
  border-color: var(--pink);
  color: var(--pink);
}

.bond-token.selected {
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: 0 0 14px rgba(255, 209, 102, 0.45);
}

.sub-bonder {
  display: grid;
  gap: 8px;
  min-height: 92px;
  margin-bottom: 16px;
  padding: 12px;
  border: 2px dashed var(--blue);
  color: var(--blue);
  text-transform: uppercase;
}

#sub-bond-zone {
  color: var(--amber);
  font-size: clamp(1.2rem, 3vw, 1.7rem);
}

.number-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.number-orb {
  width: 68px;
  height: 68px;
  border: 2px solid var(--green);
  border-radius: 50%;
  color: var(--green);
  background: rgba(0, 0, 0, 0.58);
  font: inherit;
  font-size: 1.7rem;
}

.number-orb.selected {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 14px rgba(96, 255, 112, 0.45);
}

.compound-orb,
.compound-orb.selected {
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: 0 0 14px rgba(255, 94, 180, 0.45);
}

.number-orb.sub-selected {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 12px rgba(98, 216, 255, 0.45);
}

.mystery-orb {
  border-color: var(--pink);
  color: var(--pink);
}

.bond-actions {
  margin-top: 12px;
}

.bond-actions .command-button {
  min-width: 132px;
}

@keyframes bond-success-flash {
  0%,
  100% {
    border-color: var(--green);
    color: var(--green);
    box-shadow: 0 0 22px rgba(96, 255, 112, 0.82);
  }

  50% {
    border-color: var(--soft);
    color: var(--soft);
    box-shadow: 0 0 8px rgba(213, 255, 218, 0.42);
  }
}

.scope-grid {
  position: relative;
  height: 100%;
  min-height: 420px;
  border: 2px solid var(--green);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 100%, transparent 0 18%, rgba(108, 255, 123, 0.2) 18.3% 18.8%, transparent 19% 36%, rgba(108, 255, 123, 0.16) 36.3% 36.8%, transparent 37% 54%, rgba(108, 255, 123, 0.12) 54.3% 54.8%, transparent 55%),
    linear-gradient(90deg, transparent 49.8%, rgba(108, 255, 123, 0.35) 50%, transparent 50.2%);
}

.scope-camera-window {
  position: absolute;
  left: 50%;
  top: 18px;
  width: min(66%, 340px);
  aspect-ratio: 3 / 2;
  transform: translateX(-50%);
  border: 2px solid var(--green);
  box-shadow: 0 0 14px rgba(108, 255, 123, 0.18);
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
}

.scope-camera {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
  opacity: 0.9;
  z-index: 0;
}

.radio-decode-field {
  position: absolute;
  left: 50%;
  top: 254px;
  width: min(66%, 340px);
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--amber);
  background: rgba(0, 0, 0, 0.62);
  color: var(--amber);
  font-size: 0.86rem;
  line-height: 1.15;
  text-align: center;
  transform: translateX(-50%);
  z-index: 3;
}

.radio-decode-field.decoding {
  color: #ff4f64;
  border-color: #ff4f64;
  animation: radioDecodeFlash 0.28s steps(2, end) infinite;
}

@keyframes radioDecodeFlash {
  50% {
    opacity: 0.35;
  }
}

.scope-grid::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 92%;
  aspect-ratio: 1;
  border: 2px solid var(--green);
  border-radius: 50%;
  transform: translate(-50%, 50%);
  pointer-events: none;
  z-index: 1;
}

#scope-ray {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 2px;
  height: 100%;
  background: var(--amber);
  transform-origin: bottom center;
  z-index: 3;
}

#scope-distance-circle {
  position: absolute;
  left: 50%;
  bottom: 0;
  border: 2px solid rgba(255, 218, 89, 0.72);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 218, 89, 0.32);
  transform: translate(-50%, 50%);
  pointer-events: none;
  z-index: 1;
}

.scope-dish-rig {
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 172px;
  height: 142px;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 1;
}

.scope-dish-base {
  position: absolute;
  left: 50%;
  bottom: 40px;
  width: 46px;
  image-rendering: pixelated;
  transform: translateX(-50%);
  opacity: 0.78;
  filter: drop-shadow(0 0 8px rgba(108, 255, 123, 0.22));
  z-index: 1;
}

.scope-dish {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 75px;
  image-rendering: pixelated;
  transform: translate(-50%, -64%) rotate(0deg);
  transform-origin: 50% 78%;
  filter: drop-shadow(0 0 8px rgba(102, 219, 255, 0.35));
  z-index: 2;
}

#scope-dot {
  position: absolute;
  left: 50%;
  bottom: 16px;
  color: var(--pink);
  transform: translateX(-50%);
  z-index: 4;
}

#scope-markers {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

#scope-free-sources {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 4;
}

.scope-free-source {
  position: absolute;
  color: var(--blue);
  font-size: 1.45rem;
  font-weight: 700;
  text-shadow: 0 0 12px rgba(98, 216, 255, 0.9);
  transform: translate(-50%, -50%);
  animation: scope-free-jitter 0.72s steps(2, end) infinite;
}

.radio-free-label {
  position: absolute;
  left: 50%;
  bottom: 10px;
  z-index: 6;
  transform: translateX(-50%);
  padding: 4px 12px;
  border: 1px solid var(--blue);
  color: var(--blue);
  background: rgba(0, 0, 0, 0.64);
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(98, 216, 255, 0.72);
}

.scope-marker {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 3px solid var(--amber);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.scope-scan-pulse {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 218, 89, 0.92);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: scope-pulse 0.9s ease-out forwards;
}

.scope-echo {
  position: absolute;
  transform: translate(-50%, -150%);
  font-size: 0.9rem;
  text-transform: uppercase;
  pointer-events: none;
}

.scope-echo-hit {
  color: var(--green);
  text-shadow: 0 0 12px var(--green);
  animation: scope-hit-echo 1.6s steps(4, end) infinite;
}

.scope-echo-miss {
  color: rgba(255, 80, 120, 0.9);
  text-shadow: 0 0 10px rgba(255, 80, 120, 0.7);
  animation: scope-miss-echo 1.4s ease-out forwards;
}

.radio-data-popup {
  position: absolute;
  z-index: 9;
  transform: translate(-50%, -50%);
  min-width: 260px;
  border: 2px solid var(--green);
  background: rgba(0, 0, 0, 0.9);
  box-shadow: 0 0 22px rgba(108, 255, 123, 0.5);
}

.radio-data-popup div {
  display: grid;
  gap: 12px;
  padding: 18px;
  justify-items: center;
}

.radio-data-popup p {
  margin: 0;
  color: var(--green);
  font-size: 1.35rem;
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 0 14px rgba(108, 255, 123, 0.8);
}

@keyframes scope-pulse {
  from {
    width: 18px;
    height: 18px;
    opacity: 0.95;
  }

  to {
    width: 120px;
    height: 120px;
    opacity: 0;
  }
}

@keyframes scope-free-jitter {
  50% {
    transform: translate(calc(-50% + var(--jitter-x)), calc(-50% + var(--jitter-y)));
  }
}

@keyframes scope-hit-echo {
  0%, 100% {
    opacity: 0.55;
  }

  50% {
    opacity: 1;
  }
}

@keyframes scope-miss-echo {
  0% {
    color: rgba(255, 80, 120, 0.95);
    opacity: 0.95;
  }

  100% {
    color: rgba(0, 0, 0, 0);
    opacity: 0;
  }
}

.signal-panel {
  display: grid;
  gap: 6px;
  margin: 12px 0 16px;
  color: var(--blue);
  text-transform: uppercase;
}

.signal-panel pre {
  min-height: 7.8em;
  margin: 0 0 6px;
  padding: 8px;
  border: 1px solid var(--green);
  color: var(--green);
  background: rgba(0, 0, 0, 0.5);
  font-size: 0.82rem;
  line-height: 1.1;
  white-space: pre;
}

.receiver-signal-box {
  position: relative;
  min-height: 7.8em;
  margin: 0 0 6px;
  border: 1px solid var(--green);
  background: rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.receiver-signal-box pre {
  position: relative;
  min-height: 7.8em;
  margin: 0;
  border: 0;
  background: transparent;
  z-index: 1;
}

#receiver-amplitude-line {
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 0;
  height: 3px;
  background: var(--green);
  box-shadow: 0 0 10px rgba(108, 255, 123, 0.7);
  transform: translateX(-50%);
  transform-origin: center;
  pointer-events: none;
  z-index: 2;
}

.manifest-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 18px 0;
  color: var(--blue);
  text-transform: uppercase;
}

.manifest-grid > div {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--green);
  background: rgba(0, 0, 0, 0.45);
}

.manifest-grid strong {
  color: var(--amber);
}

.cargo-results {
  margin-top: 20px;
}

.cargo-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 14px;
  color: var(--blue);
  text-transform: uppercase;
}

.cargo-result-grid > div {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--green);
  background: rgba(0, 0, 0, 0.45);
}

.cargo-result-grid strong {
  color: var(--amber);
}

.cargo-line {
  display: grid;
  gap: 6px;
}

.cargo-boxes {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  min-height: 24px;
}

.cargo-box {
  width: 20px;
  height: 20px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 0 8px currentColor;
}

.cargo-water {
  color: #62d8ff;
  background: #1b8dff;
}

.cargo-equipment {
  color: var(--amber);
  background: #ffd34f;
}

.cargo-food {
  color: var(--green);
  background: #2fd95f;
}

.line-card label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--blue);
  text-transform: uppercase;
}

.test-game input[type="range"] {
  width: 100%;
  height: 44px;
  margin: 0;
  background: transparent;
  accent-color: var(--green);
  cursor: pointer;
}

.test-game input[type="range"]::-webkit-slider-runnable-track {
  height: 16px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: rgba(108, 255, 123, 0.24);
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.45);
}

.test-game input[type="range"]::-webkit-slider-thumb {
  width: 42px;
  height: 42px;
  margin-top: -14px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 14px rgba(255, 218, 89, 0.65);
  -webkit-appearance: none;
}

.test-game input[type="range"]::-moz-range-track {
  height: 16px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: rgba(108, 255, 123, 0.24);
}

.test-game input[type="range"]::-moz-range-thumb {
  width: 38px;
  height: 38px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 14px rgba(255, 218, 89, 0.65);
}

.grid-cell {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1.55;
  min-width: 0;
  border: 0;
  border-right: 2px solid var(--pink);
  border-bottom: 2px solid var(--pink);
  color: var(--ink);
  background: transparent;
  font-size: clamp(1.25rem, 4vw, 2.4rem);
  font-weight: 700;
  cursor: pointer;
}

.grid-cell:nth-child(6n) {
  border-right: 0;
}

.grid-cell:nth-last-child(-n + 6) {
  border-bottom: 0;
}

.grid-cell.selected::before {
  content: "";
  position: absolute;
  inset: 9%;
  border: 2px solid var(--ink);
  box-shadow: inset 0 0 0 2px rgba(5, 7, 10, 0.9);
}

.grid-cell.selected::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 5px;
  width: 28px;
  height: 28px;
  background:
    linear-gradient(var(--green), var(--green)) 9px 0 / 10px 6px,
    linear-gradient(var(--green), var(--green)) 6px 6px / 16px 10px,
    linear-gradient(var(--ink), var(--ink)) 9px 8px / 3px 3px,
    linear-gradient(var(--ink), var(--ink)) 16px 8px / 3px 3px,
    linear-gradient(var(--green), var(--green)) 0 14px / 8px 6px,
    linear-gradient(var(--green), var(--green)) 20px 14px / 8px 6px,
    linear-gradient(var(--green), var(--green)) 7px 16px / 5px 12px,
    linear-gradient(var(--green), var(--green)) 16px 16px / 5px 12px;
  background-repeat: no-repeat;
  image-rendering: pixelated;
}

.grid-cell.correct {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 209, 102, 0.18);
}

.grid-cell.wrong {
  border-color: var(--pink);
  color: var(--pink);
  background: rgba(255, 107, 181, 0.18);
}

.grid-cell.resource-found::after {
  content: attr(data-resource);
  position: absolute;
  display: grid;
  place-items: center;
  right: 50%;
  bottom: 50%;
  width: 32px;
  height: 32px;
  color: var(--amber);
  background: none;
  font-size: 1.7rem;
  transform: translate(50%, 50%);
  text-shadow: 0 0 10px rgba(255, 209, 102, 0.9);
}

.game-screen .grid-cell.resource-found::after,
.game-screen .grid-cell.selected.resource-found::after {
  right: 50%;
  bottom: 50%;
  width: 36px;
  height: 36px;
  font-size: 1.8rem;
  transform: translate(50%, 50%);
  transform-origin: center;
}

.feedback {
  min-height: 28px;
  color: var(--amber);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

body[data-game] {
  overflow: hidden;
}

body[data-game] .starfield {
  opacity: 0.35;
}

.screen.game-screen {
  width: var(--stage-width);
  height: var(--stage-height);
  min-height: 0;
  margin: var(--stage-margin-y) auto;
  padding: clamp(6px, 1.5vw, 12px);
}

.game-screen .top-nav {
  position: absolute;
  left: 10px;
  top: 8px;
  z-index: 8;
  margin: 0;
  gap: 6px;
}

.game-screen .top-nav a {
  min-height: 0;
  padding: 4px 7px;
  font-size: 0.72rem;
}

.game-screen .game-panel {
  grid-template-rows: auto auto 1fr auto;
  height: 100%;
  gap: clamp(6px, 1.5vh, 10px);
  margin: 0;
}

.game-screen .mission-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 32px;
  padding-left: 138px;
}

.game-screen .system-line {
  color: var(--ink);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
}

.game-screen .mission-header h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.05rem, 2.5vw, 1.45rem);
  line-height: 1;
  text-shadow: none;
}

.game-screen .scoreboard {
  gap: 6px;
  min-width: 0;
  font-size: clamp(0.8rem, 1.7vw, 1rem);
}

.game-screen .scoreboard span {
  padding: 4px 8px;
}

.game-screen .equation {
  min-height: 0;
  padding: 6px 10px 7px;
  font-size: clamp(1.2rem, 4vw, 2rem);
}

.game-screen .number-grid {
  align-self: stretch;
  min-height: 0;
  grid-template-rows: repeat(5, minmax(0, 1fr));
}

.game-screen .grid-cell {
  aspect-ratio: auto;
  min-height: 0;
  font-size: clamp(1.1rem, 3.8vw, 1.8rem);
}

.game-screen .grid-cell.selected::before {
  inset: 12%;
}

.game-screen .grid-cell.selected::after {
  right: 5px;
  bottom: 4px;
  transform: scale(0.82);
  transform-origin: right bottom;
}

.game-screen .feedback {
  min-height: 26px;
  padding-right: 250px;
  font-size: clamp(0.82rem, 1.8vw, 1rem);
}

@media (max-width: 760px) {
  .screen {
    width: var(--stage-width);
    height: var(--stage-height);
    min-height: 0;
    margin: var(--stage-margin-y) auto;
  }

  .mission-header {
    display: grid;
  }

  .scoreboard {
    justify-content: start;
  }

  .operator-grid {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .grid-cell {
    aspect-ratio: 1.1;
  }

  .screen.game-screen {
    width: var(--stage-width);
    height: var(--stage-height);
    min-height: 0;
    margin: var(--stage-margin-y) auto;
  }

  .game-screen .mission-header {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .game-screen .scoreboard {
    justify-content: start;
  }

  .game-screen .feedback {
    padding-right: 0;
  }

  .land-layout {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1fr) auto;
  }

  .land-control-card {
    gap: 8px;
  }

  .land-controls {
    grid-template-columns: repeat(3, 1fr);
  }

  .land-note {
    display: none;
  }
}