:root {
  color-scheme: dark;
  --bg: #061923;
  --panel: #102b36;
  --cyan: #6aecd8;
  --gold: #f6c96c;
  --muted: #8cafba;
  --line: #24424d;
  --cream: #eff9f3;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--cream);
  background: var(--bg);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: radial-gradient(ellipse at 80% 0, #143a44, transparent 55%),
    var(--bg);
}
button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  cursor: pointer;
  color: inherit;
  border: 0;
  background: none;
}
button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
a {
  color: inherit;
  text-decoration: none;
}
[hidden] {
  display: none !important;
}
button[data-action] {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
#app {
  max-width: 1200px;
  margin: auto;
  padding: 0 max(16px, env(safe-area-inset-left)) env(safe-area-inset-bottom);
}
.masthead {
  height: 76px;
  padding-top: env(safe-area-inset-top);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  gap: 10px;
}
.masthead > a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  font-size: 24px;
  letter-spacing: 2px;
}
.masthead small {
  display: block;
  font-size: 7px;
  letter-spacing: 1.8px;
  color: var(--muted);
  margin-top: 1px;
}
.brand-mark {
  display: grid;
  place-items: center;
  background: var(--cyan);
  color: #0c3137;
  width: 37px;
  height: 42px;
  border-radius: 13px;
  font-size: 28px;
}
.edition {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--muted);
}
.edition i {
  color: var(--cyan);
  margin: 0 6px;
}
.quiet {
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  font-size: 12px;
  background: #0e2933;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 1.7px;
  font-weight: 750;
  color: var(--muted);
  margin: 0 0 8px;
}
.home-hero {
  padding: 46px 8px 34px;
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 20px;
  align-items: center;
}
.mode-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 0 0 34px;
}
.mode-entry {
  min-height: 104px;
  padding: 14px 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  text-align: left;
  background: linear-gradient(145deg, #123541, #0b2530);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.mode-entry:hover { transform: translateY(-2px); border-color: var(--cyan); box-shadow: 0 10px 24px #0004; }
.mode-entry > span { display: block; font-size: 25px; color: var(--cyan); line-height: 1; margin-bottom: 9px; }
.mode-entry b,.mode-entry small { display:block; }
.mode-entry b { font-size: 14px; }
.mode-entry small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.mode-lab > span { color: var(--gold); }
.mode-escape { background: linear-gradient(145deg, #1a3854, #152748); }
.mode-escape > span { color: #82c9ff; }
.mode-quiz { background: linear-gradient(145deg, #3d3159, #1d2947); }
.mode-quiz > span { color: #e9a7ff; }
.mode-cards { background:linear-gradient(145deg,#615027,#283f4c); }
.mode-cards > span { color:#fff1aa; }
.modes-view { padding: 26px 0 56px; }
.experimental-view { max-width: 920px; margin: 0 auto; animation: mode-rise .28s ease both; }
.experimental-title { font-size: clamp(34px, 6vw, 56px); letter-spacing: -2px; margin: 10px 0 12px; }
.experimental-intro { max-width: 650px; color: #c1d8d5; line-height: 1.6; margin: 0 0 24px; }
.experimental-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.experimental-card { min-height: 290px; display: flex; flex-direction: column; align-items: flex-start; padding: 22px; border: 1px solid #315566; border-radius: 22px; background: radial-gradient(circle at 100% 0, #22506c, transparent 45%), #102b39; }
.experimental-card h2 { font-size: 22px; letter-spacing: -1px; margin: 3px 0 9px; }
.experimental-card > p:not(.eyebrow) { color: #b8d0d2; font-size: 13px; line-height: 1.5; flex: 1; }
.experimental-card .primary { margin-top: 14px; }
.experimental-icon { font-size: 31px; color: var(--gold); margin-bottom: 13px; }
.experimental-score { color: var(--cyan); margin-bottom: 6px; }
.experimental-progress { color: var(--cyan); font-size: 12px; font-weight: 750; letter-spacing: 1px; }
.experimental-prompt { max-width: 760px; font-size: clamp(27px, 5vw, 45px); line-height: 1.08; letter-spacing: -1.5px; margin: 16px 0 26px; }
.experimental-options { display: grid; gap: 11px; max-width: 760px; }
.experimental-choice { min-height: 58px; padding: 13px 17px; border: 1px solid #396274; border-radius: 15px; background: #102d39; text-align: left; line-height: 1.3; transition: background .18s ease, transform .18s ease; }
.experimental-choice:not(:disabled):hover { transform: translateX(4px); background: #164251; }
.experimental-choice.is-correct { border-color: var(--cyan); background: #12534f; }
.experimental-choice.is-wrong { border-color: #f28387; background: #592d3b; }
.experimental-note { max-width: 700px; padding: 14px 16px; border-left: 3px solid var(--gold); background: #102b36; color: #c8dcda; line-height: 1.5; }
.experimental-run .primary,.experimental-finish .primary { margin-top: 16px; }
@keyframes mode-rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 650px) {
  .mode-nav { grid-template-columns: repeat(2, 1fr); gap: 9px; margin-bottom: 27px; }
  .mode-entry { min-height: 94px; }
  .experimental-grid { grid-template-columns: 1fr; }
  .experimental-card { min-height: 0; }
  .experimental-prompt { font-size: 29px; }
}
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
.home-hero h1 {
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 750;
  letter-spacing: -2.8px;
  line-height: 1.02;
  margin: 14px 0 20px;
}
.home-hero h1 em {
  color: var(--cyan);
  font-style: normal;
}
.home-hero p:not(.eyebrow) {
  font-size: 14px;
  line-height: 1.7;
  color: #a5c0c6;
}
.primary {
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 26px;
  background: var(--cyan);
  color: #092f33;
  font-size: 13px;
  font-weight: 800;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.primary span {
  font-size: 22px;
}
.hero-art {
  height: 260px;
  position: relative;
  border: 1px solid #315059;
  border-radius: 50% 50% 38% 38%;
  background: radial-gradient(ellipse at 50% 20%, #408f9980, transparent 65%),
    linear-gradient(155deg, #154c60, #123746 45%, #0a2534);
  overflow: hidden;
  box-shadow: inset 0 0 65px #020d21;
}
.hero-art:before {
  content: "";
  position: absolute;
  inset: -70px 10px 0;
  background: repeating-linear-gradient(
    110deg,
    transparent 0 34px,
    #97ede40d 34px 48px,
    transparent 48px 85px
  );
  transform: rotate(15deg);
}
.hero-cargo {
  position: absolute;
  left: calc(50% - 54px);
  bottom: 35px;
  width: 108px;
  height: 67px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, #dfb369, #755b42);
  border: 4px solid #f0c88b;
  box-shadow: 0 15px 30px #020f20;
  font-size: 30px;
  color: #664934;
  transform: rotate(-6deg);
}
.hero-bag {
  position: absolute;
  top: 30px;
  width: 61px;
  height: 98px;
  border-radius: 50% 50% 30% 30%;
  background: linear-gradient(135deg, #f9f3d3, #b6d6c2);
  box-shadow: inset -10px -8px 0 #8baa9b;
}
.hero-bag:after {
  content: "";
  height: 85px;
  width: 2px;
  background: #b6c8b2;
  position: absolute;
  top: 90px;
  left: 30px;
}
.hero-bag.a {
  left: calc(50% - 95px);
  transform: rotate(-12deg);
}
.hero-bag.b {
  right: calc(50% - 95px);
  transform: rotate(10deg);
}
.orb {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid #b1fdf670;
  border-radius: 50%;
}
.orb.one {
  left: 30%;
  top: 24px;
}
.orb.two {
  right: 18%;
  top: 120px;
  width: 18px;
  height: 18px;
}
.section-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 12px 0 16px;
}
.section-label h2 {
  font-size: 16px;
  font-weight: 650;
  margin: 0;
}
.section-label span {
  font-size: 11px;
  color: var(--muted);
}
.mission-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.mission-card {
  min-height: 158px;
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  padding: 18px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(150deg, #184b52, #10323f);
}
.mission-card[data-biome="reef"] {
  background: linear-gradient(145deg, #304e51, #183543);
}
.mission-card[data-biome="wreck"] {
  background: linear-gradient(145deg, #323f4d, #152633);
}
.mission-card:before {
  content: "";
  position: absolute;
  width: 170px;
  height: 120px;
  right: -50px;
  bottom: -25px;
  border-radius: 50%;
  background: repeating-linear-gradient(
    15deg,
    #afd4cc0c 0 4px,
    transparent 4px 22px
  );
  transform: rotate(-20deg);
}
.mission-card:not(:disabled):hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-number {
  color: var(--cyan);
  font-size: 25px;
  font-weight: 650;
  letter-spacing: -1px;
}
.card-symbol {
  font-size: 29px;
  color: #a7d8d5;
}
.mission-card h3 {
  font-size: 14px;
  margin: 16px 0 6px;
}
.mission-card small {
  font-size: 10px;
  color: #a2bec5;
}
.card-stars {
  letter-spacing: 3px;
  font-size: 11px;
  color: var(--gold);
}
footer {
  padding: 23px 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  flex-wrap: wrap;
}
footer p {
  margin: 0;
  flex-basis: 100%;
  font-size: 10px;
  max-width: 70ch;
}
.text-button {
  color: var(--cyan);
  font-size: 11px;
  min-height: 32px;
  padding: 3px 4px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.play-view {
  height: calc(100dvh - 77px - env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  padding: 10px 0 12px;
  gap: 8px;
}
.mission-heading {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
}
.mission-heading > div {
  flex: 1;
}
.mission-heading .eyebrow {
  font-size: 9px;
  margin-bottom: 3px;
}
.mission-heading h1 {
  font-size: 19px;
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.6px;
}
.icon-button {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 15px;
  display: grid;
  place-items: center;
  font-size: 23px;
  background: #0b2934;
}
.goal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 10px;
  border-radius: 10px;
  background: #16333c;
  border: 1px solid #355159;
}
.goal-bar > span:first-child {
  color: var(--gold);
  font-size: 20px;
}
.goal-bar p {
  flex: 1;
  font-size: 12px;
  margin: 0;
}
.goal-bar > span:last-child {
  color: var(--cyan);
  white-space: nowrap;
  font-size: 11px;
}
.game-layout {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(140px, 1fr) auto;
  gap: 8px;
}
.ocean {
  position: relative;
  min-height: 0;
  border: 1px solid #436979;
  border-radius: 20px;
  overflow: hidden;
  background: #164d63;
  isolation: isolate;
}
.ocean canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
}
.scene-top,
.scene-bottom {
  position: absolute;
  left: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  pointer-events: none;
}
.scene-top {
  top: 11px;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: #b2e1df;
}
.scene-tag {
  font-size: 7px;
  background: #041f3470;
  border-radius: 20px;
  padding: 5px 8px;
  letter-spacing: 0.8px;
}
.scene-bottom {
  bottom: 10px;
  font-size: 10px;
}
.scene-bottom > span {
  background: #052c3bdc;
  padding: 6px 9px;
  border: 1px solid #537b8560;
  border-radius: 9px;
  max-width: 85%;
  line-height: 1.3;
}
.scene-bottom #docking-label:empty {
  display: none;
}
.instruments-controls {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.instruments {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #0b2530;
  padding: 8px;
}
.instrument {
  padding: 0 6px;
  min-width: 0;
  border-right: 1px solid var(--line);
}
.instrument:last-child {
  border: 0;
}
.instrument small {
  display: block;
  font-size: 8px;
  letter-spacing: 0.7px;
  color: var(--muted);
}
.instrument strong {
  display: block;
  font-size: 18px;
  font-weight: 600;
  margin-top: 3px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.instrument em {
  font-size: 10px;
  color: var(--muted);
  font-style: normal;
}
.instrument > span {
  display: block;
  font-size: 8px;
  color: var(--muted);
  margin-top: 2px;
}
.gas-row {
  display: flex;
  gap: 4px;
  align-items: center;
}
.gas-row strong {
  font-size: 15px;
}
.tanks {
  display: flex;
  gap: 2px;
}
.tank {
  width: 8px;
  height: 22px;
  position: relative;
  overflow: hidden;
  border: 1px solid #8cbdbe;
  border-radius: 4px;
}
.tank i {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(#74e2c5, #38aeb7);
}
.checklist {
  display: flex;
  justify-content: space-between;
  gap: 4px;
  font-size: 10px;
  padding: 0 5px;
  color: var(--muted);
}
.checklist .done {
  color: var(--cyan);
}
.controls {
  padding: 8px 12px 3px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #102c37;
}
.control-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.control-heading > span {
  font-size: 8px;
  letter-spacing: 1px;
  color: var(--muted);
}
.control-heading b {
  letter-spacing: 0;
  margin-left: 4px;
  color: var(--cream);
  font-weight: 600;
}
.control-heading .text-button {
  font-size: 10px;
  min-height: 26px;
}
.main-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 1px 8px 2px;
}
.round {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 0 #030f18;
  flex-shrink: 0;
  transition: transform 0.08s;
}
.round span {
  font-size: 28px;
  line-height: 1;
}
.round small {
  font-size: 7px;
  letter-spacing: 0.7px;
  margin-top: 3px;
}
.round.inflate {
  background: var(--cyan);
  color: #0f3637;
}
.round.deflate {
  background: #224854;
  border: 1px solid #47717d;
}
.round.trim {
  width: 56px;
  height: 56px;
  background: #e4b66d;
  color: #483921;
}
.round.active,
.steering button.active,
.manual-controls button.active {
  transform: translateY(2px);
  box-shadow: none;
  filter: brightness(1.17);
}
.steering {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.steering button {
  width: 55px;
  min-height: 44px;
  border-radius: 15px;
  background: #193b48;
  font-size: 24px;
  line-height: 1;
}
.steering span {
  font-size: 8px;
  letter-spacing: 1px;
  color: var(--muted);
}
.assist-note {
  font-size: 8px;
  text-align: center;
  color: var(--muted);
  margin: 2px 0 0;
}
.manual-controls {
  display: grid;
  grid-template-columns: 1fr 44px 44px 1fr 44px 44px;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  margin: 6px 0;
}
.manual-controls button {
  min-height: 44px;
  background: #214c59;
  border-radius: 12px;
  font-size: 23px;
}
.notice {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 40px;
  text-align: center;
  font-size: 12px;
  padding: 8px 12px;
  background: #453528e8;
  color: #ffe0a3;
  border: 1px solid #dcae73;
  border-radius: 10px;
  pointer-events: none;
}
.overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #02141ada;
  backdrop-filter: blur(9px);
  padding: 20px;
}
.modal {
  width: min(100%, 440px);
  max-height: calc(100dvh - 40px);
  overflow: auto;
  padding: 28px;
  border-radius: 26px;
  border: 1px solid #4a7276;
  background: linear-gradient(145deg, #193b44, #0a2530);
  box-shadow: 0 35px 100px #0008;
  text-align: center;
}
.dialog-icon {
  width: 60px;
  height: 60px;
  border-radius: 21px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  background: #6aecd82a;
  color: var(--cyan);
  font-size: 34px;
}
.modal.failure .dialog-icon {
  background: #e8966c20;
  color: #f6b58a;
}
.modal h2 {
  font-size: 28px;
  letter-spacing: -0.9px;
  margin: 8px 0 12px;
}
.modal > p:not(.eyebrow) {
  font-size: 13px;
  color: #a8c7ce;
  line-height: 1.65;
  max-width: 34ch;
  margin: 0 auto 12px;
}
.modal .discovery {
  padding: 13px 15px;
  border: 1px solid #3f6166;
  border-radius: 14px;
  background: #0d2a35;
  text-align: left;
  margin: 16px 0;
  font-size: 12px;
  line-height: 1.6;
  color: #c9e3df;
}
.discovery b {
  color: var(--gold);
  font-size: 9px;
  letter-spacing: 1.1px;
  display: block;
  margin-bottom: 5px;
}
.brief-facts {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: 11px;
  color: #c1d8dc;
  margin: 15px 0;
}
.brief-facts span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
}
.result-stars {
  font-size: 32px;
  letter-spacing: 8px;
  color: var(--gold);
  margin: 8px 0;
}
.result-metrics {
  font-size: 12px;
  color: var(--muted);
  margin: 12px 0;
}
#dialog-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}
#dialog-actions > button {
  width: 100%;
  justify-content: center;
}
.lab-view {
  max-width: 640px;
  margin: 26px auto;
  padding-bottom: 30px;
}
.lab-view h1 {
  font-size: 34px;
  letter-spacing: -1px;
}
.lab-view > p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.lab-view .eyebrow {
  margin-top: 28px;
}
.lab-card {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 30px;
  border: 1px solid #375761;
  border-radius: 24px;
  background: #112d39;
  margin: 25px 0;
}
.lab-card span {
  font-size: 28px;
  color: var(--gold);
}
.lab-card p {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}
.lung-pair {
  display: flex;
  gap: 6px;
  align-items: center;
  min-width: 140px;
  height: 170px;
}
.lung-pair > div {
  width: 63px;
  height: 136px;
  border: 2px solid #efb6ac;
  background: #412e3b;
  position: relative;
  overflow: hidden;
  border-radius: 50% 40% 40% 35%;
  transform: scale(var(--lung-scale, 1));
  transition: transform 0.12s;
}
.lung-pair > div + div {
  border-radius: 40% 50% 35% 40%;
}
.lung-pair i {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--lung-fill, 60%);
  background: linear-gradient(#f3c19b, #c78677);
}
.lab-view label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}
.lab-view input[type="range"] {
  width: 100%;
  height: 44px;
  accent-color: var(--cyan);
}
.lab-switch {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}
.lab-switch button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  font-size: 12px;
  flex: 1;
}
.lab-switch .selected {
  background: #2b625f;
  border-color: var(--cyan);
}
.lab-caption {
  margin-top: 23px;
}
.home-view {
  animation: arrive 0.35s ease;
}
.modal {
  animation: arrive 0.18s ease;
}
@keyframes arrive {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
}
@media (min-width: 700px) {
  .game-layout {
    grid-template-columns: minmax(0, 1fr) 250px;
    grid-template-rows: minmax(0, 1fr);
    gap: 16px;
  }
  .instruments-controls {
    justify-content: center;
    gap: 15px;
  }
  .instruments {
    grid-template-columns: repeat(2, 1fr);
    gap: 17px;
    padding: 18px 8px;
  }
  .instrument:nth-child(2) {
    border: 0;
  }
  .instrument strong {
    font-size: 22px;
  }
  .instrument small {
    font-size: 9px;
  }
  .instrument > span {
    font-size: 9px;
  }
  .gas-row strong {
    font-size: 19px;
  }
  .checklist {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .main-controls {
    padding: 9px 0;
  }
  .controls {
    padding: 12px;
  }
  .steering {
    margin-top: 9px;
  }
  .scene-bottom {
    font-size: 12px;
  }
  .scene-tag {
    font-size: 9px;
  }
  .manual-controls {
    grid-template-columns: 1fr 44px 44px;
    gap: 4px;
  }
  .play-view {
    padding-top: 16px;
    gap: 12px;
  }
  .mission-heading h1 {
    font-size: 24px;
  }
  .ocean {
    border-radius: 25px;
  }
}
@media (max-width: 600px) {
  .masthead {
    height: 60px;
  }
  .masthead > a {
    font-size: 20px;
    gap: 7px;
  }
  .masthead small {
    font-size: 6px;
  }
  .brand-mark {
    width: 30px;
    height: 35px;
    border-radius: 10px;
  }
  .edition {
    display: none;
  }
  .home-hero {
    padding: 29px 0 20px;
    gap: 12px;
    grid-template-columns: 1.1fr 0.7fr;
  }
  .home-hero h1 {
    font-size: 38px;
    letter-spacing: -1.7px;
  }
  .home-hero .eyebrow {
    font-size: 8px;
    letter-spacing: 1px;
  }
  .home-hero p:not(.eyebrow) {
    font-size: 12px;
  }
  .home-hero .primary {
    font-size: 11px;
    padding: 12px;
  }
  .hero-art {
    height: 200px;
  }
  .hero-bag {
    width: 40px;
    height: 73px;
  }
  .hero-bag.a {
    left: calc(50% - 54px);
  }
  .hero-bag.b {
    right: calc(50% - 54px);
  }
  .hero-bag:after {
    left: 20px;
    top: 60px;
    height: 70px;
  }
  .hero-cargo {
    width: 76px;
    left: calc(50% - 38px);
    height: 48px;
    bottom: 25px;
  }
  .mission-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .mission-card {
    min-height: 142px;
    padding: 15px;
  }
  .play-view {
    height: calc(
      100dvh - 61px - env(safe-area-inset-top) - env(safe-area-inset-bottom)
    );
  }
  .mission-heading h1 {
    font-size: 17px;
  }
  .goal-bar p {
    font-size: 11px;
  }
  #app {
    padding-inline: max(10px, env(safe-area-inset-left));
  }
  .lab-card {
    gap: 15px;
    padding: 20px;
  }
  .lab-view h1 {
    font-size: 28px;
  }
}
@media (max-height: 650px) and (min-width: 500px) {
  .masthead {
    height: 44px;
  }
  .brand-mark {
    height: 30px;
    width: 28px;
  }
  .masthead > a {
    font-size: 18px;
  }
  .masthead small {
    display: none;
  }
  .play-view {
    height: calc(100dvh - 45px - env(safe-area-inset-bottom));
    gap: 5px;
    padding: 5px 0;
  }
  .mission-heading {
    min-height: 35px;
  }
  .mission-heading h1 {
    font-size: 16px;
  }
  .mission-heading .eyebrow {
    font-size: 8px;
  }
  .icon-button {
    height: 44px;
    width: 44px;
  }
  .goal-bar {
    min-height: 28px;
    padding: 2px 8px;
  }
  .game-layout {
    grid-template-columns: minmax(0, 1fr) 214px;
    grid-template-rows: minmax(0, 1fr);
    gap: 8px;
  }
  .instruments-controls {
    justify-content: center;
    gap: 5px;
  }
  .instruments {
    grid-template-columns: repeat(2, 1fr);
    padding: 7px 4px;
    gap: 6px;
  }
  .instrument strong {
    font-size: 16px;
  }
  .instrument:nth-child(2) {
    border: 0;
  }
  .instrument > span {
    font-size: 7px;
  }
  .instrument small {
    font-size: 7px;
  }
  .checklist {
    font-size: 9px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3px;
  }
  .controls {
    padding: 4px 8px;
  }
  .main-controls {
    padding: 1px 0;
    gap: 5px;
  }
  .round {
    width: 54px;
    height: 54px;
  }
  .round.trim {
    width: 48px;
    height: 48px;
  }
  .steering {
    gap: 7px;
  }
  .steering span {
    font-size: 7px;
  }
  .assist-note {
    font-size: 7px;
  }
  .scene-tag {
    display: none;
  }
  .control-heading > span {
    font-size: 7px;
  }
  .manual-controls {
    grid-template-columns: 1fr 44px 44px;
    font-size: 9px;
  }
}
@media (max-width: 390px) {
  .instrument {
    padding: 0 3px;
  }
  .instrument strong {
    font-size: 16px;
  }
  .gas-row strong {
    font-size: 13px;
  }
  .tanks {
    gap: 1px;
  }
  .tank {
    width: 6px;
  }
  .goal-bar p {
    font-size: 10px;
  }
  .home-hero {
    grid-template-columns: 1fr;
  }
  .hero-art {
    display: none;
  }
}
/* Secondary controls have the same minimum touch target as the game buttons. */
.text-button,
.control-heading .text-button {
  min-height: 44px;
}
.modal:focus-visible {
  outline: none;
}
.home-view {
  animation: none;
}
.section-label {
  gap: 12px;
}
.section-label > span {
  text-align: right;
  max-width: 50%;
  line-height: 1.4;
}
.controls.fine .main-controls {
  display: none;
}
.main-controls {
  justify-content: space-around;
}
.hero-diver{position:absolute;bottom:25px;left:15%;width:120px;height:160px;z-index:2;filter:drop-shadow(0 10px 12px #00121d99)}
@media(max-width:600px){.hero-diver{width:80px;height:120px;left:4px;bottom:30px}}
@media(max-width:390px){.home-hero{grid-template-columns:1.2fr .8fr;gap:8px}.hero-art{display:block;height:190px}.home-hero h1{font-size:34px}.home-hero p:not(.eyebrow){font-size:11px}.hero-diver{left:4px;width:72px;bottom:20px}.hero-cargo{left:55%;width:65px;bottom:40px}.hero-bag.a{left:45%;top:22px}.hero-bag.b{right:-12px;top:30px}}
.new-control {
  padding: 9px 12px;
  border-radius: 10px;
  background: #6aecd81c;
  color: var(--cyan);
  font-size: 10px;
  letter-spacing: 1px;
  margin-top: 12px;
}
.lab-view {
  max-width: 960px;
}
.lab-menu-heading {
  margin: 26px 0 22px;
}
.lab-menu-heading h1 {
  font-size: 40px;
  letter-spacing: -1.7px;
  line-height: 1.05;
}
.lab-menu-heading h1 em {
  color: var(--cyan);
  font-style: normal;
}
.lab-menu-heading > p:last-child {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  max-width: 55ch;
}
.prototype-label {
  font-size: 10px !important;
  line-height: 1.45;
  color: #e3bc8c !important;
  padding: 9px 12px;
  background: #3a3128;
  border: 1px solid #806744;
  border-radius: 10px;
}
.science-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px;
}
.science-card {
  border: 1px solid var(--line);
  background: #102d37;
  border-radius: 17px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  min-height: 103px;
  text-align: left;
}
.science-card > span {
  font-size: 26px;
  color: var(--cyan);
  width: 35px;
}
.science-card > div {
  flex: 1;
}
.science-card small {
  font-size: 8px;
  letter-spacing: 1.1px;
  color: var(--muted);
}
.science-card h2 {
  font-size: 15px;
  margin: 7px 0 0;
  font-weight: 650;
}
.science-card p { font-size: 11px; color: var(--muted); margin: 8px 0 0; line-height: 1.5; }
.science-discovery { display: flex; align-items: center; gap: 12px; padding: 15px; border: 1px solid #42756c; border-radius: 17px; background: linear-gradient(115deg,#1b4546,#13313d); margin: 16px 0; }
.science-discovery img { flex: 0 0 48px; object-fit: contain; }
.science-discovery span { color: var(--cyan); font-size: 10px; letter-spacing: 1.2px; font-weight: 750; }
.science-discovery p { margin: 6px 0 0; font-size: 14px; line-height: 1.6; color: #e0ede4; max-width: 75ch; }
.science-steps { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.science-steps > span { padding: 8px 12px; border: 1px solid #46666b; border-radius: 24px; font-size: 11px; color: var(--muted); }
.science-steps .current { color: #0a3037; background: var(--cyan); border-color: var(--cyan); font-weight: 750; }
.science-steps .complete { color: var(--cyan); border-color: var(--cyan); }
.science-steps small { font-size: 11px; color: var(--muted); margin-left: auto; }
.science-feedback { color: #e1ded0; font-size: 13px; line-height: 1.6; min-height: 65px; }
#science-meter { width: 100%; height: 8px; display: block; margin: 10px 0 20px; accent-color: var(--cyan); }
.science-checkpoint { padding: 18px; border: 1px solid var(--cyan); border-radius: 18px; background: #204a46; margin-bottom: 15px; }
.science-checkpoint strong { color: var(--cyan); font-size: 14px; }
.science-checkpoint p { font-size: 13px; line-height: 1.65; color: #e2ede4; }
.science-checkpoint button { width: 100%; min-height: 48px; font-size: 13px; padding: 12px; }
.science-paused { padding: 13px; border: 1px solid var(--gold); border-radius: 12px; font-size: 13px; color: var(--gold); }
.science-controls input:disabled, .science-controls button:disabled { opacity: .48; }
.science-controls label:focus-within { outline: 2px solid var(--gold); outline-offset: 5px; border-radius: 9px; }
.science-card > b {
  color: var(--gold);
  font-size: 23px;
}
.science-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 10px;
}
.science-heading > div {
  flex: 1;
}
.science-heading h1 {
  font-size: 24px !important;
  margin: 0 !important;
  letter-spacing: -0.7px;
}
.science-heading .eyebrow {
  font-size: 8px;
  margin: 0 0 4px;
}
.science-task {
  font-size: 14px;
  line-height: 1.5;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: #12343e;
  border-radius: 0 12px 12px 0;
  min-height: 65px;
}
.science-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 20px;
}
.science-apparatus {
  border: 1px solid #47717a;
  border-radius: 20px;
  overflow: hidden;
  align-self: start;
}
.science-apparatus canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 600/340;
}
.science-readout {
  padding: 14px;
  font-size: 11px;
  line-height: 1.6;
  color: #bbd8d8;
  background: #0a2532;
  min-height: 58px;
}
.science-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.science-controls label { display: block; }
.science-controls label > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #bdd7d9;
  font-size: 12px;
}
.science-controls b {
  color: var(--gold);
  font-size: 17px;
}
.science-controls input {
  height: 48px;
  width: 100%;
  accent-color: var(--cyan);
}
.science-toggle {
  min-height: 48px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: #173d47;
  border-radius: 14px;
  font-size: 12px;
  width: 100%;
  touch-action: none;
}
.science-toggle.selected {
  border-color: var(--cyan);
  background: #256453;
}
.science-limits {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.6;
  margin: 14px 0;
}
.science-symbols {
  padding: 12px;
  display: flex;
  justify-content: center;
  gap: 8px;
  background: #0b2935;
}
.science-symbols button {
  width: 56px;
  min-height: 48px;
  border: 1px solid #537775;
  background: #164854;
  border-radius: 13px;
  font-size: 26px;
  color: var(--gold);
}
.science-result {
  background: #173e42;
  padding: 24px;
  border: 1px solid #68af9c;
  border-radius: 20px;
  margin-top: 20px;
}
.science-result > span {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--cyan);
}
.science-result h2 {
  font-size: 25px;
  letter-spacing: -0.5px;
}
.science-result > p {
  font-size: 13px;
  line-height: 1.7;
  color: #bdd7d1;
}
.science-result-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.science-result-actions > button {
  min-height: 48px;
}
.scene-tag {
  font-size: 8px;
}
@media (max-width: 650px) {
  .science-cards {
    grid-template-columns: 1fr;
  }
  .science-layout {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .science-heading h1 {
    font-size: 19px !important;
  }
  .science-task {
    font-size: 14px;
    padding: 10px 12px;
  }
  .lab-view {
    margin-top: 15px;
  }
  .science-apparatus canvas {
    object-fit: contain;
  }
  .science-result {
    padding: 18px;
  }
  .lab-menu-heading h1 {
    font-size: 34px;
  }
  .science-discovery p { font-size: 13px; }
  .science-discovery { padding: 12px; gap: 8px; }
}
.goal-bar {
  position: relative;
}
.goal-bar .notice {
  inset: 0;
  top: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 4px 9px;
  font-size: 11px;
}
@media (max-height: 430px) and (min-width: 500px) {
  .assist-note {
    display: none;
  }
  .instruments {
    padding: 4px;
    gap: 2px;
  }
  .instrument strong {
    font-size: 14px;
    line-height: 17px;
    margin-top: 1px;
  }
  .instrument small {
    line-height: 9px;
  }
  .instrument > span {
    font-size: 7px;
    line-height: 9px;
    margin-top: 1px;
    white-space: nowrap;
  }
  .tank {
    height: 17px;
  }
  .checklist {
    display: none;
  }
  .steering {
    margin-top: 1px;
  }
  .controls.fine .assist-note {
    display: none;
  }
  .controls.fine .control-heading {
    margin-top: -4px;
  }
  .controls.fine .control-heading > span {
    display: none;
  }
  .controls.fine .control-heading .text-button {
    min-height: 44px;
    width: 100%;
  }
  .controls.fine .manual-controls {
    margin-block: 0;
  }
  .controls.fine {
    padding-block: 0;
  }
  .instruments-controls:has(.controls.fine) {
    gap: 2px;
  }
  .instruments-controls:has(.controls.fine) .instruments {
    padding-block: 3px;
    gap: 2px;
  }
  .instruments-controls:has(.controls.fine) .instrument > span {
    display: none;
  }
  .instruments-controls:has(.controls.fine) .instrument strong {
    margin-top: 0;
    font-size: 15px;
  }
  .instruments-controls:has(.controls.fine) .checklist {
    display: none;
  }
}