:root {
  color-scheme: dark;
  --ink: #12101d;
  --ink-soft: #211b35;
  --purple: #7c4dff;
  --purple-deep: #3d287c;
  --mint: #5effb1;
  --lime: #d7f36b;
  --gold: #ffd447;
  --paper: #fff9df;
  --muted: #c9c4d8;
  --red: #ff6e79;
  --shadow: 0 18px 50px rgba(0,0,0,.34);
  font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-height: 100%; background: var(--ink); }
body { min-width: 320px; min-height: 100vh; margin: 0; color: var(--paper); background: radial-gradient(circle at 12% 3%, rgba(94,255,177,.18), transparent 26rem), radial-gradient(circle at 92% 5%, rgba(124,77,255,.25), transparent 28rem), linear-gradient(145deg, #252043, #100e19 70%, #171b30); overflow-x: hidden; }
button, input { font: inherit; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 4px solid var(--lime); outline-offset: 4px; }
a { color: inherit; }
.lab-texture { position: fixed; inset: 0; pointer-events: none; opacity: .2; background-image: radial-gradient(circle, rgba(255,255,255,.5) 0 1px, transparent 1.7px), linear-gradient(90deg, transparent 49%, rgba(255,255,255,.04) 50%, transparent 51%); background-size: 23px 23px, 46px 46px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
.lab-shell { position: relative; width: min(1320px, 100%); min-height: 100vh; margin: 0 auto; padding: max(12px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left)); display: flex; flex-direction: column; }
.portal-bar { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.15); }
.portal-brand { display: inline-flex; align-items: center; gap: 9px; color: var(--paper); font-family: Impact, "Arial Black", sans-serif; font-size: clamp(.9rem, 2vw, 1.08rem); letter-spacing: .06em; text-decoration: none; }.portal-brand strong { color: var(--lime); font-weight: inherit; }
.mini-flask { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--mint); box-shadow: 3px 3px 0 rgba(0,0,0,.28); font-size: 1.2rem; }
.portal-actions { display: flex; align-items: center; gap: 8px; }.lab-chip, .help-button, .sound-button { min-height: 40px; padding: 8px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; background: rgba(255,255,255,.07); }.lab-chip { color: var(--lime); font-size: .68rem; font-weight: 900; letter-spacing: .12em; }.help-button, .sound-button { color: var(--paper); transition: background .2s ease, transform .2s ease; }.help-button:hover, .sound-button:hover { background: rgba(255,255,255,.15); transform: translateY(-1px); }.sound-button { display: inline-flex; align-items: center; gap: 6px; }
.lab-main { flex: 1; display: grid; align-items: center; padding: clamp(18px, 4vw, 46px) 0; }.screen { width: 100%; }
.start-screen, .results-screen { min-height: 700px; display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); overflow: hidden; border: 1px solid rgba(255,255,255,.17); border-radius: 28px; background: rgba(18,16,29,.92); box-shadow: var(--shadow); }
.start-copy, .results-panel { padding: clamp(28px, 5vw, 64px); display: flex; flex-direction: column; justify-content: center; }.start-copy { background: radial-gradient(circle at 15% 8%, rgba(94,255,177,.18), transparent 17rem), linear-gradient(160deg, rgba(61,40,124,.98), rgba(18,16,29,.97)); }
.back-link { width: max-content; margin-bottom: 24px; color: var(--lime); font-size: .85rem; font-weight: 900; text-decoration: none; }.back-link:hover { color: var(--mint); }
.eyebrow, .prompt-kicker { margin: 0; color: var(--lime); font-size: .72rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; } h1 { margin: 10px 0 0; color: var(--paper); font-family: Impact, "Arial Black", sans-serif; font-size: clamp(3.7rem, 7vw, 6.4rem); line-height: .84; letter-spacing: .035em; } h1 span { color: var(--mint); }.tagline { max-width: 28rem; margin: 24px 0 8px; color: var(--lime); font-size: clamp(1.1rem, 2.3vw, 1.45rem); font-weight: 900; }.intro-copy { max-width: 31rem; margin-bottom: 20px; color: #e0dced; line-height: 1.5; }
.lab-fact { width: min(100%, 410px); margin-bottom: 14px; padding: 13px 15px; display: flex; flex-direction: column; gap: 4px; border: 1px solid rgba(94,255,177,.34); border-left: 5px solid var(--mint); border-radius: 12px; background: rgba(94,255,177,.08); }.lab-fact span { color: var(--mint); font-size: .64rem; font-weight: 900; letter-spacing: .12em; }.lab-fact strong { color: var(--paper); font-size: 1.02rem; }.lab-fact small { color: rgba(255,249,223,.7); font-size: .77rem; }
.name-entry { margin: 13px 0 14px; padding: 13px 15px 14px; display: grid; gap: 7px; border: 1px solid rgba(255,255,255,.16); border-radius: 13px; background: rgba(255,255,255,.06); }.name-entry label { color: var(--lime); font-size: .74rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }.name-entry input { width: 100%; min-height: 46px; padding: 9px 12px; color: var(--paper); border: 2px solid rgba(255,255,255,.22); border-radius: 9px; outline: 0; background: rgba(7,6,12,.65); font-weight: 800; }.name-entry input::placeholder { color: rgba(255,249,223,.5); }.name-entry input:focus { border-color: var(--mint); }.name-entry span { color: rgba(255,249,223,.65); font-size: .74rem; font-weight: 700; }
.method-strip { margin: 1px 0 14px; display: flex; flex-wrap: wrap; gap: 5px; }.method-strip span { padding: 5px 7px; color: var(--ink); border-radius: 999px; background: var(--mint); font-size: .62rem; font-weight: 900; }
.start-leaderboard-panel, .leaderboard-panel { margin: 5px 0 16px; padding: 13px 14px; border: 1px solid rgba(255,255,255,.15); border-radius: 14px; background: rgba(0,0,0,.18); }.leaderboard-heading { display: flex; align-items: end; justify-content: space-between; gap: 10px; margin-bottom: 9px; }.shelf-kicker { display: block; color: var(--lime); font-size: .62rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }.leaderboard-heading h2, .leaderboard-heading h3 { margin: 2px 0 0; color: var(--paper); font-family: Impact, "Arial Black", sans-serif; font-size: clamp(1.3rem, 3vw, 1.8rem); }.leaderboard-note { color: #c9d9c7; font-size: .67rem; font-weight: 800; text-align: right; }.leaderboard-list { display: grid; gap: 5px; margin: 0; padding: 0; list-style: none; }.leaderboard-row { min-height: 39px; padding: 5px 8px; display: grid; grid-template-columns: 31px minmax(0,1fr) auto; align-items: center; gap: 7px; border-left: 3px solid rgba(255,255,255,.23); border-radius: 7px; background: rgba(255,255,255,.07); }.leaderboard-row.is-current { border-left-color: var(--mint); background: rgba(94,255,177,.12); }.leader-rank { color: rgba(255,249,223,.62); font-weight: 900; }.leader-copy { min-width: 0; display: grid; }.leader-name { overflow: hidden; color: var(--paper); font-size: .8rem; text-overflow: ellipsis; white-space: nowrap; }.leader-meta { color: rgba(255,249,223,.57); font-size: .62rem; font-weight: 700; }.leader-score { color: var(--lime); font-size: .95rem; }.leaderboard-empty { padding: 8px; color: rgba(255,249,223,.6); font-size: .74rem; text-align: center; }
.start-button, .secondary-button, .next-button { min-height: 50px; border-radius: 12px; font-weight: 900; letter-spacing: .035em; }.start-button { width: 100%; padding: 12px 15px; display: flex; align-items: center; justify-content: space-between; color: var(--ink); border: 2px solid #090a0d; background: var(--mint); box-shadow: 5px 5px 0 var(--red); text-transform: uppercase; transition: transform .18s ease, box-shadow .18s ease, filter .18s ease; }.start-button:disabled { cursor: not-allowed; filter: grayscale(.35); opacity: .68; }.start-button:not(:disabled):hover { filter: brightness(1.06); transform: translate(-2px,-2px); box-shadow: 7px 7px 0 var(--red); }.start-button > span:last-child { font-size: 1.35rem; }.microcopy { margin: 12px 0 0; color: rgba(255,249,223,.57); font-size: .68rem; font-weight: 700; text-align: center; }
.start-art, .results-art { position: relative; min-height: 700px; overflow: hidden; background: linear-gradient(180deg, #222047 0 33%, #2f1c54 33% 55%, #1b473f 55% 100%); }.start-art::after, .results-art::after { content: ""; position: absolute; inset: 52% 0 0; opacity: .35; background: repeating-linear-gradient(90deg, transparent 0 9.5%, rgba(94,255,177,.85) 9.5% 10%, transparent 10% 19.5%); }.lab-moon { position: absolute; top: 9%; right: 14%; width: 100px; height: 100px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 45px rgba(94,255,177,.45); }.lab-shelf { position: absolute; left: -7%; width: 114%; height: 15%; border-radius: 50%; background: #12101d; opacity: .72; }.shelf-back { top: 29%; transform: rotate(-3deg); }.shelf-front { top: 39%; transform: rotate(2deg); background: #0a0910; }
.lab-beaker, .lab-scientist, .lab-zap { position: absolute; z-index: 4; filter: drop-shadow(5px 7px 0 rgba(0,0,0,.3)); }.lab-beaker { bottom: 22%; font-size: 5rem; }.beaker-one { left: 8%; }.beaker-two { right: 9%; font-size: 4.4rem; }.lab-scientist { z-index: 5; left: 30%; bottom: 8%; font-size: clamp(7rem, 15vw, 11rem); transform: rotate(-3deg); }.lab-zap { z-index: 6; color: var(--gold); font-size: 3rem; }.zap-one { top: 23%; left: 12%; transform: rotate(-12deg); }.zap-two { top: 37%; right: 16%; color: var(--mint); transform: rotate(18deg); }.lab-callout { position: absolute; z-index: 7; left: 12%; top: 49%; color: var(--lime); font-family: "Comic Sans MS", cursive; font-size: clamp(1.8rem, 4vw, 3.4rem); transform: rotate(-8deg); text-shadow: 3px 3px 0 var(--ink); }.lab-equation { position: absolute; z-index: 7; right: 10%; bottom: 8%; color: rgba(255,249,223,.7); font-family: Impact, "Arial Black", sans-serif; font-size: 1rem; letter-spacing: .09em; transform: rotate(5deg); }

.play-screen { border: 1px solid rgba(255,255,255,.16); border-radius: 20px; overflow: hidden; background: var(--ink-soft); box-shadow: var(--shadow); }.game-hud { display: grid; grid-template-columns: repeat(4, 1fr); background: #171322; }.hud-stat { min-height: 76px; padding: 11px 14px; display: flex; flex-direction: column; justify-content: center; gap: 3px; border-right: 1px solid rgba(255,255,255,.13); text-align: center; }.hud-stat:last-child { border-right: 0; }.hud-stat span { color: rgba(255,249,223,.58); font-size: .66rem; font-weight: 900; letter-spacing: .13em; }.hud-stat strong { color: var(--paper); font-size: clamp(1.25rem, 4vw, 2rem); line-height: 1; }.hud-score-stat strong { color: var(--gold); }.hud-power-stat strong { color: var(--mint); }
.experiment-banner { padding: 18px 18px 17px; color: var(--ink); text-align: center; background: radial-gradient(circle at 15% 30%, rgba(94,255,177,.17) 0 3px, transparent 4px), radial-gradient(circle at 85% 70%, rgba(124,77,255,.15) 0 3px, transparent 4px), var(--paper); background-size: 24px 24px, 28px 28px, auto; box-shadow: 0 8px 20px rgba(0,0,0,.25); }.experiment-banner .prompt-kicker { color: var(--purple-deep); }.experiment-banner h2 { margin: 7px auto 3px; color: var(--ink); font-family: Impact, "Arial Black", sans-serif; font-size: clamp(1.6rem, 4vw, 2.5rem); letter-spacing: .025em; }.experiment-banner p:not(.prompt-kicker) { margin: 0; color: #403a54; font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 900; }.experiment-banner span { display: block; margin-top: 6px; color: #746b82; font-size: .72rem; font-weight: 800; }
.lab-board { position: relative; min-height: 720px; padding: 20px clamp(14px, 3vw, 32px) 27px; background: linear-gradient(160deg, #31295d, #1c553f 70%, #194b3b); }.lab-board::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .22; background-image: linear-gradient(90deg, transparent 49%, rgba(255,255,255,.06) 50%, transparent 51%), linear-gradient(transparent 49%, rgba(255,255,255,.05) 50%, transparent 51%); background-size: 44px 44px; }.lab-board-header, .steps-heading { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 10px; }.lab-board-header { color: var(--lime); font-size: .74rem; font-weight: 900; letter-spacing: .12em; }.lab-board-header span { color: rgba(255,249,223,.72); font-size: .68rem; font-weight: 700; letter-spacing: 0; }.action-deck { position: relative; z-index: 1; min-height: 172px; margin: 12px 0 18px; padding: 11px; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 9px; border: 2px solid rgba(94,255,177,.38); border-radius: 16px; background: rgba(7,6,12,.34); }.action-card { min-height: 115px; padding: 10px 11px; display: flex; flex-direction: column; align-items: flex-start; gap: 5px; color: var(--ink); border: 3px solid var(--mint); border-radius: 12px; background: var(--paper); box-shadow: 4px 5px 0 rgba(10,8,18,.3); text-align: left; transition: transform .16s ease, border-color .16s ease, background .16s ease, opacity .16s ease; touch-action: none; }.action-card:hover, .action-card.is-selected { border-color: var(--gold); background: #fff3ae; transform: translateY(-3px) rotate(-1deg); }.action-card.is-dragging { opacity: .64; transform: scale(.97) rotate(2deg); }.action-card.is-placed { display: none; }.action-card small { color: var(--purple-deep); font-size: .61rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }.action-card strong { font-size: .82rem; line-height: 1.16; }.action-card .card-spark { align-self: flex-end; color: var(--purple); font-size: .9rem; }
.steps-heading { color: var(--lime); font-size: .72rem; font-weight: 900; letter-spacing: .12em; }.steps-heading small { color: rgba(255,249,223,.7); font-size: .67rem; font-weight: 700; letter-spacing: 0; }.step-grid { position: relative; z-index: 1; margin-top: 9px; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 9px; }.step-zone { min-height: 126px; padding: 11px; display: flex; flex-direction: column; align-items: flex-start; gap: 5px; color: var(--paper); border: 2px dashed rgba(255,255,255,.44); border-radius: 12px; background: rgba(18,16,29,.44); text-align: left; transition: background .16s ease, border-color .16s ease, transform .16s ease; }.step-zone:hover, .step-zone.is-targeted { border-color: var(--gold); background: rgba(255,212,71,.16); transform: translateY(-2px); }.step-zone.is-correct { border-style: solid; border-color: var(--mint); background: rgba(94,255,177,.2); }.step-zone .step-number { color: var(--gold); font-family: Impact, "Arial Black", sans-serif; font-size: 1.15rem; }.step-zone strong { color: var(--paper); font-size: .76rem; line-height: 1.1; }.step-zone small { color: rgba(255,249,223,.63); font-size: .62rem; font-weight: 700; line-height: 1.18; }.placed-action { margin-top: auto; padding: 5px 6px; width: 100%; color: var(--ink); border-radius: 6px; background: var(--mint); font-size: .66rem; font-weight: 900; line-height: 1.14; }
.feedback { position: absolute; z-index: 8; left: 50%; bottom: 18px; width: min(650px, calc(100% - 30px)); padding: 13px 15px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 5px 10px; color: var(--ink); border: 2px solid var(--ink); border-radius: 14px; background: rgba(255,249,223,.97); box-shadow: 5px 6px 0 rgba(10,8,18,.3); text-align: center; transform: translateX(-50%); }.feedback strong { color: var(--purple-deep); font-size: 1.08rem; }.feedback span { font-size: .9rem; font-weight: 800; }.feedback.is-wrong strong { color: #bf4d57; }.next-button { min-height: 38px; padding: 7px 12px; color: var(--ink); border: 2px solid var(--ink); background: var(--gold); }
.lab-tip { margin: 11px 0 0; color: rgba(255,249,223,.72); font-size: .8rem; font-weight: 800; text-align: center; }
.results-panel { background: linear-gradient(160deg, rgba(61,40,124,.98), rgba(18,16,29,.97)); }.results-flask { font-size: 3.2rem; }.results-panel h2 { margin: 10px 0; color: var(--mint); font-family: Impact, "Arial Black", sans-serif; font-size: clamp(2.4rem, 5vw, 4.4rem); line-height: .92; }.results-panel > p:not(.eyebrow) { color: #e0dced; font-size: 1.05rem; }.results-stats { margin: 22px 0 24px; display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }.results-stats div { min-height: 82px; padding: 11px 7px; display: flex; flex-direction: column; justify-content: center; gap: 7px; border: 1px solid rgba(255,255,255,.16); border-radius: 11px; background: rgba(255,255,255,.06); text-align: center; }.results-stats span { color: rgba(255,249,223,.63); font-size: .68rem; font-weight: 900; }.results-stats strong { color: var(--lime); font-size: 1.35rem; }.result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }.secondary-button { padding: 13px 15px; display: flex; align-items: center; justify-content: center; color: var(--paper); border: 2px solid rgba(255,255,255,.25); background: rgba(255,255,255,.07); text-decoration: none; text-align: center; }.secondary-button:hover { background: rgba(255,255,255,.13); }.results-art { background: linear-gradient(180deg, #222047 0 33%, #2f1c54 33% 55%, #1b473f 55% 100%); }.results-scientist { position: absolute; z-index: 5; left: 25%; bottom: 13%; font-size: 11rem; filter: drop-shadow(7px 8px 0 rgba(0,0,0,.27)); }.results-bubbles { position: absolute; z-index: 6; top: 22%; right: 19%; color: var(--mint); font-size: 2rem; letter-spacing: .3em; }.results-art > span { position: absolute; z-index: 7; top: 46%; left: 18%; color: var(--lime); font-family: "Comic Sans MS", cursive; font-size: clamp(1.5rem, 4vw, 3rem); font-weight: 900; transform: rotate(-7deg); text-shadow: 3px 3px 0 var(--ink); }.lab-footer { min-height: 36px; display: flex; align-items: center; justify-content: center; gap: 10px; color: rgba(255,249,223,.55); font-size: .72rem; font-weight: 800; }
dialog { width: min(510px, calc(100% - 26px)); padding: 28px; color: var(--ink); border: 0; border-radius: 18px; background: var(--paper); box-shadow: 0 22px 70px rgba(0,0,0,.45); } dialog::backdrop { background: rgba(5,6,9,.76); } dialog h2 { margin: 8px 0 13px; color: var(--ink); font-family: Impact, "Arial Black", sans-serif; font-size: 2.7rem; } dialog ol { margin: 0; padding-left: 22px; line-height: 1.65; }.dialog-close { position: absolute; top: 9px; right: 12px; width: 34px; height: 34px; color: var(--ink); border: 0; background: transparent; font-size: 1.8rem; }.dialog-button { margin-top: 20px; }.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }

@media (max-width: 980px) { .start-screen, .results-screen { grid-template-columns: 1fr; }.start-art, .results-art { min-height: 380px; }.action-deck, .step-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 680px) { .lab-chip { display: none; }.portal-actions .help-button, .portal-actions .sound-button { padding-inline: 9px; font-size: .74rem; }.start-copy, .results-panel { padding: 27px 20px 31px; } h1 { font-size: clamp(3.1rem, 14vw, 4.8rem); }.start-art, .results-art { min-height: 300px; }.lab-scientist { left: 22%; font-size: 8rem; }.lab-beaker { font-size: 3.7rem; }.game-hud { grid-template-columns: repeat(4,1fr); }.hud-stat { min-height: 64px; padding: 8px 4px; }.hud-stat span { font-size: .54rem; letter-spacing: .05em; }.hud-stat strong { font-size: clamp(1rem, 5vw, 1.4rem); }.experiment-banner { padding-inline: 10px; }.experiment-banner h2 { font-size: 1.55rem; }.experiment-banner p:not(.prompt-kicker) { font-size: .9rem; }.lab-board { min-height: 930px; padding-inline: 10px; }.lab-board-header, .steps-heading { align-items: flex-start; flex-direction: column; gap: 4px; }.action-deck, .step-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 7px; }.action-deck { min-height: 300px; padding: 8px; }.action-card { min-height: 130px; padding: 8px; }.action-card strong { font-size: .72rem; }.step-zone { min-height: 142px; padding: 8px; }.step-zone strong { font-size: .68rem; }.step-zone small { font-size: .57rem; }.results-stats { gap: 5px; }.results-stats div { min-height: 78px; padding-inline: 3px; }.results-stats span { font-size: .58rem; }.results-stats strong { font-size: 1.12rem; }.result-actions { grid-template-columns: 1fr; } }
@media (max-width: 390px) { .portal-bar { min-height: 52px; }.portal-brand { font-size: .82rem; }.mini-flask { width: 25px; height: 25px; font-size: 1rem; }.help-button, .sound-button { min-height: 36px; padding: 7px 8px !important; font-size: .66rem !important; }.game-hud .hud-stat strong { font-size: .92rem; }.action-card { min-height: 140px; }.step-zone { min-height: 150px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }