:root {
  color-scheme: light;
  --background:#eff3ff; --foreground:#20283f; --surface:#fff; --surface-raised:#f7f9ff;
  --primary:#4935ce; --primary-foreground:#fff; --secondary:#166147; --secondary-foreground:#fff;
  --accent:#ffc857; --accent-foreground:#20283f; --muted:#e8edfa; --muted-foreground:#5b657e;
  --success:#166147; --success-foreground:#fff; --warning:#8d4c00; --incorrect:#aa263f;
  --border:#dce3f4; --focus:#20283f; --disabled:#e2e7f1; --tile-edge:#d5ddf0;
  --matrix-tile:#fff; --matrix-selected:#4935ce; --matrix-locked:#166147;
  --timer-normal:#20283f; --timer-warning:#8d4c00; --timer-critical:#aa263f; --timer-expired:#5b657e;
  --stage-numbers:#2f6bff; --stage-alphabets:#17b2b0; --stage-words:#7b52ff; --stage-colours:#e8437f;
  --stage-geography:#189a5b; --stage-science:#f2a516;
  --shadow-card:0 1px 2px rgb(32 40 63 / .05),0 12px 30px -18px rgb(32 40 63 / .28);
  --shadow-tile:0 3px 0 var(--tile-edge),0 4px 10px -4px rgb(32 40 63 / .18);
}
[data-theme="space"] { --background:#08152f; --foreground:#eef4ff; --surface:#10264d; --surface-raised:#15315e; --muted:#183866; --muted-foreground:#aabde2; --border:#254677; --tile-edge:#061028; --matrix-tile:#15315e; --primary:#668cff; --primary-foreground:#08152f; }
[data-theme="jungle"] { --background:#eef7ee; --surface:#fff; --surface-raised:#f3fbf4; --primary:#226b3a; --secondary:#8a5b18; --accent:#d9ad43; --muted:#dcecdf; --border:#c9dfcf; --stage-numbers:#2f7c46; }
[data-theme="cyber"] { --background:#0b1020; --foreground:#edfaff; --surface:#121a31; --surface-raised:#17203d; --primary:#22d3ee; --primary-foreground:#061219; --secondary:#a855f7; --muted:#202b49; --muted-foreground:#99a9ca; --border:#29375d; --tile-edge:#050814; --matrix-tile:#17203d; }
[data-theme="lab"] { --background:#eff6ff; --primary:#2563eb; --secondary:#0ea5e9; --accent:#7dd3fc; }
[data-theme="mystery"] { --background:#f5f0e6; --foreground:#3b2f27; --surface:#fffaf0; --primary:#7c2d12; --accent:#d6a45c; --muted:#e9dfcf; --border:#d7c7b3; }
[data-theme="traveller"] { --background:#fff8df; --primary:#0d9488; --secondary:#b45309; --accent:#f6c453; --muted:#efe8c8; }
[data-theme="gameshow"] { --background:#17133b; --foreground:#fff8ef; --surface:#221d52; --surface-raised:#2c2567; --primary:#f59e0b; --primary-foreground:#281700; --accent:#ec4899; --muted:#312b6d; --muted-foreground:#c8c0ed; --border:#433b82; --tile-edge:#0b0824; --matrix-tile:#2c2567; }
[data-theme="african"] { --background:#fff4df; --foreground:#3a2518; --surface:#fffaf0; --primary:#b45309; --secondary:#166534; --accent:#facc15; --muted:#f3dec0; --border:#e6c79a; }
[data-theme="minimal"] { --background:#f5f5f5; --foreground:#111827; --surface:#fff; --surface-raised:#fafafa; --primary:#111827; --accent:#d1d5db; --muted:#eceff1; --border:#e5e7eb; }
.high-contrast { --background:#fff; --foreground:#000; --surface:#fff; --surface-raised:#fff; --muted:#e5e5e5; --muted-foreground:#222; --border:#222; --focus:#000; --tile-edge:#000; }
*{box-sizing:border-box} html{-webkit-tap-highlight-color:transparent} body{margin:0;background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif} button,input,select{font:inherit} button{cursor:pointer} button:disabled{cursor:not-allowed} a{color:inherit;text-decoration:none}.tabular{font-variant-numeric:tabular-nums}.display{font-family:"Trebuchet MS",Inter,system-ui,sans-serif;letter-spacing:-.01em}.app-shell,.screen{width:min(100%,460px);min-height:100dvh;margin:0 auto;padding:18px 16px 92px}.screen.center{display:flex;flex-direction:column;justify-content:center}.page-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}.page-head h1{font-size:22px;margin:0;font-weight:900}.spacer{flex:1}.icon-btn{width:40px;height:40px;border:0;border-radius:15px;background:var(--surface);color:var(--foreground);box-shadow:var(--shadow-card);display:grid;place-items:center}.card{background:var(--surface);border:1px solid color-mix(in srgb,var(--border) 75%,transparent);border-radius:24px;box-shadow:var(--shadow-card);padding:16px}.card.tight{padding:12px}.muted{color:var(--muted-foreground)}.small{font-size:12px}.tiny{font-size:10px}.section-title{font-weight:900;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted-foreground);margin:20px 0 10px}.btn{border:0;border-radius:16px;padding:13px 16px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn.primary{background:var(--primary);color:var(--primary-foreground);box-shadow:0 4px 0 color-mix(in srgb,var(--primary) 75%,black)}.btn.secondary{background:var(--surface);color:var(--foreground);box-shadow:var(--shadow-card)}.btn.ghost{background:var(--muted);color:var(--foreground)}.btn.danger{background:color-mix(in srgb,var(--incorrect) 12%,transparent);color:var(--incorrect)}.btn.full{width:100%}.btn:active{transform:translateY(2px);box-shadow:none}.chip{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 9px;background:var(--muted);color:var(--muted-foreground);font-size:11px;font-weight:800}.chip.primary{background:color-mix(in srgb,var(--primary) 12%,transparent);color:var(--primary)}.chip.warning{background:color-mix(in srgb,var(--warning) 12%,transparent);color:var(--warning)}.chip.success{background:color-mix(in srgb,var(--success) 12%,transparent);color:var(--success)}.chip.accent{background:color-mix(in srgb,var(--accent) 35%,transparent);color:var(--foreground)}.chips{display:flex;flex-wrap:wrap;gap:7px}.progress{height:7px;border-radius:999px;background:var(--muted);overflow:hidden}.progress>span{display:block;height:100%;border-radius:inherit;background:var(--primary)}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.stage-card{min-height:148px;display:flex;flex-direction:column;gap:8px;text-align:left;border:2px solid transparent}.stage-card.future{opacity:.58}.stage-dot{width:42px;height:42px;border-radius:15px;display:grid;place-items:center;font-size:20px;font-weight:900}.stage-name{font-weight:900}.stage-card p{margin:0;font-size:11px;color:var(--muted-foreground);line-height:1.4}.bottom-nav{position:fixed;z-index:40;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,460px);display:grid;grid-template-columns:repeat(5,1fr);padding:8px 8px max(8px,env(safe-area-inset-bottom));background:color-mix(in srgb,var(--surface) 94%,transparent);border-top:1px solid var(--border);backdrop-filter:blur(14px)}.bottom-nav button{border:0;background:none;color:var(--muted-foreground);font-size:10px;font-weight:800;padding:6px 2px;display:flex;flex-direction:column;align-items:center;gap:2px}.bottom-nav button.active{color:var(--primary)}.nav-symbol{font-size:18px}.hero{background:var(--primary);color:var(--primary-foreground);border-radius:28px;padding:20px;box-shadow:0 6px 0 color-mix(in srgb,var(--primary) 72%,black);border:0;width:100%;text-align:left}.hero h2{font-size:26px;margin:4px 0 2px}.row{display:flex;align-items:center;gap:10px}.row.between{justify-content:space-between}.rail{display:flex;gap:12px;overflow:auto;margin:0 -16px;padding:2px 16px 10px;scrollbar-width:none}.rail .stage-card{min-width:170px}.level-band{margin-bottom:20px}.level-band h3{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-foreground)}.level-node{border:2px solid transparent;text-align:left}.level-node.completed{border-color:color-mix(in srgb,var(--success) 40%,transparent)}.level-badge{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;font-weight:900}.difficulty{border:2px solid transparent;text-align:left;width:100%}.difficulty.selected{border-color:var(--primary)}.difficulty .name{font-weight:900}.modal-backdrop{position:fixed;inset:0;z-index:80;background:rgb(14 18 29 / .42);display:flex;align-items:flex-end;justify-content:center;padding:12px}.modal{width:min(100%,460px);max-height:88dvh;overflow:auto;background:var(--surface);border-radius:26px;padding:18px;box-shadow:0 24px 70px rgb(0 0 0 / .24)}.modal.centered{align-self:center}.modal h2{margin:0 0 5px;font-size:19px}.modal-actions{display:flex;gap:9px;margin-top:16px}.modal-actions>*{flex:1}.switch-row{display:flex;align-items:center;gap:12px;justify-content:space-between}.switch{width:48px;height:28px;border:0;border-radius:99px;background:var(--muted);position:relative}.switch::after{content:"";position:absolute;left:4px;top:4px;width:20px;height:20px;border-radius:50%;background:var(--surface);transition:.2s}.switch.on{background:var(--primary)}.switch.on::after{left:24px}.theme-swatch{height:54px;border-radius:16px;display:flex;overflow:hidden}.theme-swatch span{flex:1}.welcome-logo{width:min(270px,72%);height:auto}.feature{display:flex;flex-direction:column;align-items:center;text-align:center;gap:5px}.feature .circle{width:42px;height:42px;border-radius:15px;background:color-mix(in srgb,var(--primary) 12%,transparent);display:grid;place-items:center;color:var(--primary);font-size:20px}.onboard-dots{display:flex;gap:5px;margin-bottom:28px}.onboard-dots span{height:6px;flex:1;background:var(--muted);border-radius:99px}.onboard-dots span.on{background:var(--primary)}
.game-screen{width:min(100%,460px);min-height:100dvh;margin:0 auto;padding:12px 14px 18px;display:flex;flex-direction:column;gap:10px}.hud{display:grid;grid-template-columns:1fr auto auto;gap:9px;align-items:center}.hud-title{font-size:12px;font-weight:800}.timer{font-size:20px;font-weight:950;padding:7px 10px;border-radius:13px;background:var(--surface);box-shadow:var(--shadow-card)}.timer.warning{color:var(--warning)}.timer.critical{color:var(--incorrect);animation:pulse .8s infinite}.score-pill{font-weight:900;font-size:13px}.prompt{font-size:16px;font-weight:900;line-height:1.32}.game-meta{display:flex;align-items:center;justify-content:space-between;min-height:28px}.board-wrap{flex:1;display:flex;align-items:center;justify-content:center;min-height:330px}.puzzle-grid{width:100%;display:grid;gap:8px;padding:4px;transition:.25s}.tile{aspect-ratio:1;border:1px solid var(--border);border-radius:17px;background:var(--matrix-tile);box-shadow:var(--shadow-tile);color:var(--foreground);font-weight:950;font-size:clamp(15px,5vw,24px);display:flex;align-items:center;justify-content:center;position:relative;transition:transform .15s,background .15s,color .15s,opacity .15s}.tile:active:not(:disabled){transform:translateY(2px);box-shadow:none}.tile.locked{background:color-mix(in srgb,var(--success) 17%,var(--surface));color:var(--success);box-shadow:none;opacity:.65}.tile.incorrect{background:color-mix(in srgb,var(--incorrect) 18%,var(--surface));color:var(--incorrect);animation:shake .3s}.tile.hint{outline:4px solid color-mix(in srgb,var(--accent) 65%,transparent);transform:scale(1.04)}.tile.peek{background:color-mix(in srgb,var(--primary) 12%,var(--surface));outline:2px solid var(--primary)}.tile.disabled{opacity:.35}.order-badge{position:absolute;right:5px;top:5px;width:20px;height:20px;border-radius:999px;background:var(--primary);color:var(--primary-foreground);display:grid;place-items:center;font-size:10px}.colour-disc{width:62%;height:62%;border-radius:50%;box-shadow:inset 0 0 0 2px rgb(0 0 0 / .08)}.assist-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.assist{border:0;background:var(--surface);color:var(--foreground);box-shadow:var(--shadow-card);border-radius:15px;padding:9px 5px;font-weight:800;font-size:11px}.assist small{display:block;color:var(--muted-foreground);font-size:9px;margin-top:2px}.shift-note{font-size:11px;font-weight:900;color:var(--warning);animation:pulse .6s infinite}.tap-list{max-height:120px;overflow:auto;background:var(--surface-raised);border-radius:15px;padding:8px}.tap-row{display:grid;grid-template-columns:30px 1fr auto;gap:8px;font-size:11px;padding:4px}.good{color:var(--success)}.bad{color:var(--incorrect)}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.metric{text-align:center}.metric strong{font-size:18px}.breakdown{display:grid;grid-template-columns:1fr auto;gap:7px;font-size:12px}.breakdown .total{font-weight:900;border-top:1px solid var(--border);padding-top:8px}.result-hero{text-align:center}.result-score{font-size:44px;font-weight:950;margin:8px 0}.result-icon{width:64px;height:64px;border-radius:22px;margin:0 auto;display:grid;place-items:center;font-size:28px;background:color-mix(in srgb,var(--success) 14%,transparent);color:var(--success)}.result-icon.fail{background:color-mix(in srgb,var(--incorrect) 12%,transparent);color:var(--incorrect)}.leader-row{display:flex;align-items:center;gap:10px}.rank{width:32px;height:32px;border-radius:12px;display:grid;place-items:center;background:var(--muted);font-weight:900}.leader-row.you{background:color-mix(in srgb,var(--primary) 10%,var(--surface));outline:2px solid color-mix(in srgb,var(--primary) 30%,transparent)}.collection-item{display:flex;align-items:center;gap:7px;border-radius:12px;padding:9px;background:var(--muted);font-weight:800;font-size:12px}.collection-item.found{background:color-mix(in srgb,var(--success) 12%,transparent);color:var(--success)}.info-box{border-radius:16px;padding:12px;background:var(--surface-raised);font-size:12px;color:var(--muted-foreground);line-height:1.45}.prebrief{display:flex;flex-direction:column;justify-content:center;min-height:calc(100dvh - 40px);gap:16px}.prebrief h1{font-size:27px;margin:0}.timing-summary{font-size:12px;line-height:1.5;background:var(--surface-raised);padding:12px;border-radius:16px}.timing-summary strong{color:var(--foreground)}.static-note{font-size:10px;color:var(--muted-foreground);text-align:center;margin-top:8px}.hidden{display:none!important}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}50%{transform:translateX(4px)}75%{transform:translateX(-3px)}}@keyframes pulse{50%{opacity:.5}}.reduce-motion *, .reduce-motion *::before, .reduce-motion *::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
@media(prefers-reduced-motion:reduce){* ,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}


/* Audio controls */
.volume-control{display:grid;gap:10px;margin-bottom:8px;cursor:default}.volume-copy{display:grid;gap:3px}.volume-line{display:grid;grid-template-columns:1fr 42px;align-items:center;gap:10px}.volume-line input[type="range"],.game-volume{width:100%;accent-color:var(--primary);cursor:pointer}.volume-value{text-align:right;color:var(--muted-foreground)}.game-audio-control{display:grid;grid-template-columns:34px minmax(90px,1fr) 36px;align-items:center;gap:8px;background:var(--surface-raised);border:1px solid color-mix(in srgb,var(--border) 75%,transparent);border-radius:15px;padding:7px 9px}.game-mute{width:32px;height:32px;border:0;border-radius:11px;background:var(--surface);color:var(--foreground);box-shadow:var(--shadow-card);display:grid;place-items:center;font-size:15px}.game-mute:active{transform:translateY(1px)}.game-volume{height:24px}.game-audio-control .volume-value{text-align:right;min-width:34px}


/* Persistent mute/unmute access */
.mute-icon-btn{font-size:17px;flex:0 0 auto}.screen-utility-row{display:flex;justify-content:flex-end;align-items:center;min-height:40px;margin-bottom:10px}.screen.center .screen-utility-row{position:absolute;top:18px;right:max(16px,calc((100vw - 460px)/2 + 16px));margin:0;z-index:45}.onboard-topline{display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;margin-bottom:28px}.onboard-topline .onboard-dots{margin-bottom:0}.onboard-topline .mute-icon-btn{align-self:center}

/* Mobile viewport optimisation */
html,body{width:100%;height:100%;min-height:100%;overflow:hidden;overscroll-behavior:none}
body{position:relative}
#app{width:100%;height:100dvh;min-height:0;overflow:hidden}
.app-shell,.screen,.game-screen{height:100dvh;min-height:0;max-height:100dvh;overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch}
.app-shell{padding:calc(14px + env(safe-area-inset-top)) 16px calc(76px + env(safe-area-inset-bottom))}
.screen{padding:calc(14px + env(safe-area-inset-top)) 16px calc(18px + env(safe-area-inset-bottom))}
.game-screen{padding:calc(8px + env(safe-area-inset-top)) 12px calc(10px + env(safe-area-inset-bottom))}
.bottom-nav{padding-bottom:max(8px,env(safe-area-inset-bottom))}
.screen.center{position:relative;min-height:0}
.screen.center .screen-utility-row{top:calc(14px + env(safe-area-inset-top));right:16px}
.board-wrap{min-height:0;min-width:0}
.puzzle-grid{max-width:min(100%,calc(100dvh - 330px));margin-inline:auto}
.modal{max-height:calc(100dvh - 24px)}

@media(max-height:700px){
  .screen.center{justify-content:flex-start;padding-top:calc(58px + env(safe-area-inset-top))}
  .game-screen{gap:6px}
  .hud{gap:6px}
  .hud-title{font-size:11px}
  .timer{font-size:17px;padding:5px 8px;border-radius:11px}
  .game-audio-control{grid-template-columns:28px minmax(72px,1fr) 32px;gap:6px;padding:3px 6px;border-radius:12px}
  .game-mute{width:27px;height:27px;border-radius:9px;font-size:13px}
  .game-volume{height:18px}
  .prompt{font-size:14px;line-height:1.22;padding:9px!important}
  .game-meta{min-height:18px}
  .puzzle-grid{gap:5px;padding:2px;max-width:min(100%,calc(100dvh - 315px))}
  .tile{border-radius:13px;font-size:clamp(12px,4.5vw,21px)}
  .assist-bar{gap:6px}
  .assist{padding:7px 4px;border-radius:12px;font-size:10px}
  .assist small{font-size:8px}
  .prebrief{min-height:100%;justify-content:flex-start;gap:10px;padding-block:4px}
  .prebrief h1{font-size:22px}
  .timing-summary{padding:9px;border-radius:13px}
  .chips{gap:5px}
  .chip{padding:4px 7px;font-size:10px}
}

@media(max-width:350px){
  .app-shell,.screen{padding-left:12px;padding-right:12px}
  .game-screen{padding-left:9px;padding-right:9px}
  .grid2{gap:9px}
  .grid3{gap:6px}
  .card{border-radius:20px;padding:14px}
  .card.tight{padding:10px}
  .puzzle-grid{gap:4px}
  .tile{border-radius:11px}
}

/* Bottom navigation participates in the viewport layout instead of overlaying content. */
#app{display:flex;flex-direction:column;align-items:stretch}
.app-shell,.screen,.game-screen{flex:1 1 auto;height:auto;max-height:none}
.app-shell{padding-bottom:16px}
.bottom-nav{position:relative;bottom:auto;left:auto;transform:none;flex:0 0 auto;margin:0 auto}

/* Urykka Lab */
.lab-home-card{width:100%;margin-top:12px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;text-align:left;border-color:color-mix(in srgb,var(--primary) 24%,var(--border));background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 7%,var(--surface)),var(--surface))}.lab-home-card>span:nth-child(2){display:grid;gap:4px;min-width:0}.lab-mark{background:color-mix(in srgb,var(--primary) 13%,transparent);color:var(--primary)}.lab-home-arrow{font-size:20px;font-weight:900;color:var(--primary)}
.lab-demo-notice{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;margin-bottom:12px;padding:12px;border-radius:17px;background:color-mix(in srgb,var(--accent) 18%,var(--surface));border:1px solid color-mix(in srgb,var(--accent) 45%,var(--border));font-size:11px;line-height:1.45}.lab-demo-notice b{display:block;margin-bottom:2px}.lab-demo-notice p{margin:0;color:var(--muted-foreground)}.lab-notice-icon{font-size:18px;color:var(--warning)}
.lab-toast{margin:0 0 12px;padding:10px 12px;border-radius:14px;background:color-mix(in srgb,var(--success) 12%,var(--surface));color:var(--success);font-size:12px;font-weight:800}.lab-hero{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;padding:18px;border-radius:24px;background:linear-gradient(145deg,color-mix(in srgb,var(--primary) 95%,#000),color-mix(in srgb,var(--primary) 72%,var(--secondary)));color:var(--primary-foreground);box-shadow:0 6px 0 color-mix(in srgb,var(--primary) 72%,black)}.lab-hero-icon{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:rgb(255 255 255 / .14);font-size:27px}.lab-kicker{font-weight:900;letter-spacing:.08em;opacity:.78}.lab-hero h2{margin:3px 0 5px;font-size:23px}.lab-hero p{margin:0;font-size:11px;line-height:1.45;opacity:.88}.lab-actions{margin-top:14px}.lab-actions .btn{min-height:50px}.lab-list{display:grid;gap:10px}.lab-puzzle-card{display:grid;gap:9px}.lab-title-wrap{display:grid;gap:3px;min-width:0}.lab-title-wrap b,.lab-title-wrap span{overflow-wrap:anywhere}.lab-puzzle-card p{margin:0;line-height:1.4}.lab-card-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.lab-card-actions .btn{padding:9px 5px;font-size:10px;min-width:0}.lab-empty{text-align:center;display:grid;gap:9px;justify-items:center}.lab-empty-icon{font-size:30px;color:var(--primary)}.lab-empty p{margin:0}.lab-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.lab-steps>div{display:grid;gap:4px;padding:11px;border-radius:16px;background:var(--surface-raised);border:1px solid var(--border)}.lab-steps b{width:27px;height:27px;border-radius:10px;display:grid;place-items:center;background:color-mix(in srgb,var(--primary) 12%,transparent);color:var(--primary)}.lab-steps span{font-size:11px;font-weight:900}.lab-steps small{font-size:9px;color:var(--muted-foreground);line-height:1.35}
.lab-builder{display:grid;gap:14px}.form-field{display:grid;gap:6px;min-width:0}.form-field label{font-size:11px;font-weight:900}.form-field small{font-size:9px;color:var(--muted-foreground);line-height:1.35}.form-field input,.form-field select,.form-field textarea{width:100%;min-width:0;border:1px solid var(--border);border-radius:13px;background:var(--surface-raised);color:var(--foreground);padding:11px 12px;font-size:16px;outline:none}.form-field textarea{resize:vertical;line-height:1.4}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 12%,transparent)}.form-grid{gap:10px}.lab-check{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;border-radius:17px;box-shadow:none;background:var(--surface-raised)}.lab-check span{display:grid;gap:3px}.lab-check small{font-size:9px;color:var(--muted-foreground);line-height:1.35}.lab-check input{width:22px;height:22px;accent-color:var(--primary);flex:0 0 auto}.lab-preview-grid{display:grid;gap:5px;padding:8px;border-radius:16px;background:var(--surface-raised);border:1px solid var(--border)}.lab-preview-tile{aspect-ratio:1;min-width:0;display:grid;place-items:center;padding:2px;border-radius:10px;background:var(--surface);border:1px solid var(--border);font-size:clamp(8px,2.8vw,12px);font-weight:800;overflow:hidden;text-overflow:ellipsis}.lab-preview-tile.target{border-color:color-mix(in srgb,var(--primary) 45%,var(--border));background:color-mix(in srgb,var(--primary) 7%,var(--surface))}.lab-builder-actions{display:grid;gap:8px}.lab-error{padding:10px 12px;border-radius:13px;background:color-mix(in srgb,var(--incorrect) 10%,var(--surface));color:var(--incorrect);font-size:11px;font-weight:800}.lab-verified-box{margin-top:12px;padding:12px;border-radius:16px;background:color-mix(in srgb,var(--success) 12%,var(--surface));color:var(--success);font-size:12px;font-weight:900;text-align:center}

/* Six primary destinations including Urykka Lab */
.bottom-nav{grid-template-columns:repeat(6,1fr)}.bottom-nav button{font-size:9px;white-space:nowrap;min-width:0}

@media(max-width:350px){.lab-card-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.lab-steps{grid-template-columns:1fr}.lab-hero{grid-template-columns:1fr;gap:8px}.lab-hero-icon{width:44px;height:44px}.lab-hero h2{font-size:20px}.lab-actions{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.lab-preview-grid{gap:4px;padding:6px}.bottom-nav button{font-size:8px}.nav-symbol{font-size:16px}}

/* Urykka Lab — word creator and Identify/Discover/Spell engine */
.lab-fixed-option{min-height:44px;display:flex;align-items:center;padding:10px 12px;border:1px solid var(--border);border-radius:13px;background:var(--surface-raised);font-size:12px;font-weight:800;color:var(--muted-foreground)}
.lab-pool-note{display:grid;gap:4px;padding:11px 12px;border-radius:14px;background:color-mix(in srgb,var(--primary) 7%,var(--surface-raised));border:1px solid color-mix(in srgb,var(--primary) 24%,var(--border));font-size:10px;line-height:1.4}.lab-pool-note b{font-size:11px;color:var(--primary)}.lab-pool-note span{color:var(--muted-foreground)}
.lab-qa-list{display:grid;gap:9px}.lab-qa-row{display:grid;gap:9px;border-radius:17px;box-shadow:none;background:var(--surface-raised)}.lab-qa-row .form-field span{font-size:10px;font-weight:900}.lab-qa-row textarea{min-height:64px}
.tile.selected{background:color-mix(in srgb,var(--primary) 17%,var(--surface));color:var(--primary);outline:3px solid color-mix(in srgb,var(--primary) 38%,transparent);box-shadow:none;transform:translateY(1px)}
.lab-word-target{font-size:clamp(22px,7vw,31px);font-weight:950;letter-spacing:.08em;margin:3px 0;overflow-wrap:anywhere}.lab-word-clue{font-size:14px;font-weight:900;line-height:1.35;overflow-wrap:anywhere}
.lab-word-composer{display:grid;gap:7px;padding:10px 11px;border-radius:15px;background:var(--surface-raised);border:1px solid var(--border)}.lab-word-composer.is-good{border-color:color-mix(in srgb,var(--success) 45%,var(--border))}.lab-word-composer.is-bad{border-color:color-mix(in srgb,var(--incorrect) 45%,var(--border))}.lab-word-built{min-height:36px;display:flex;align-items:center;padding:6px 9px;border-radius:11px;background:var(--surface);border:1px solid var(--border);font-size:18px;font-weight:950;letter-spacing:.06em;overflow-wrap:anywhere;word-break:break-word}.lab-word-built .muted{font-size:11px;font-weight:700;letter-spacing:0}.lab-word-actions{display:grid;grid-template-columns:auto auto minmax(0,1fr);gap:6px}.lab-word-actions .btn{padding:8px 10px;border-radius:11px;min-height:36px}.lab-discovered{display:grid;gap:6px;padding:8px 0 2px}.lab-discovered .chips{gap:5px}.lab-discovered .chip{font-size:9px;padding:4px 6px}
@media(max-height:700px){.lab-word-game .board-wrap{flex:0 1 auto}.lab-word-game .puzzle-grid{max-width:min(100%,calc(100dvh - 405px))}.lab-word-game .lab-word-composer{padding:7px 8px;gap:5px}.lab-word-game .lab-word-built{min-height:30px;font-size:15px}.lab-word-game .lab-word-actions .btn{min-height:31px;padding:6px 8px;font-size:10px}.lab-word-game .lab-discovered{padding-top:3px}.lab-word-game .prompt{font-size:13px}}
@media(max-width:350px){.lab-word-actions{grid-template-columns:1fr 1fr}.lab-word-actions .btn.primary{grid-column:1/-1}.lab-word-target{font-size:21px}.lab-word-clue{font-size:12px}}


/* Refined browser scrolling: the document owns vertical scroll so the scrollbar
   stays at the normal browser viewport edge. */
html{min-height:100%;overflow-x:hidden;overflow-y:auto}
body{min-height:100dvh;overflow-x:hidden;overflow-y:visible}
#app{display:block;width:100%;height:auto;min-height:100dvh;overflow:visible}
.app-shell,.screen,.game-screen{height:auto;max-height:none;overflow:visible;overscroll-behavior-y:auto}
.app-shell{min-height:calc(100dvh - 68px - env(safe-area-inset-bottom));padding-bottom:16px}
.screen,.game-screen{min-height:100dvh}
.bottom-nav{position:sticky;z-index:40;bottom:0;left:auto;transform:none;margin:0 auto}

/* Urykka Lab — simplified landing/help */
.lab-help-link{width:100%;margin-top:16px;padding:10px 8px;border:0;background:transparent;color:var(--primary);font:inherit;font-size:12px;font-weight:900;text-align:center;text-decoration:underline;text-underline-offset:3px}
.lab-help-link:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 30%,transparent);outline-offset:2px;border-radius:10px}
.lab-help-modal{max-height:min(88dvh,760px)}
.lab-help-content{display:grid;gap:12px;margin-top:14px}
.lab-help-content section{display:grid;gap:3px}
.lab-help-content section b{font-size:12px}
.lab-help-content section p{margin:0;color:var(--muted-foreground);font-size:11px;line-height:1.5}
.lab-help-examples{display:grid;gap:8px;padding-top:4px}
.lab-example{display:grid;gap:3px;padding:11px 12px;border-radius:14px;background:var(--surface-raised);border:1px solid var(--border);font-size:11px;line-height:1.4}
.lab-example strong{color:var(--foreground)}
.lab-example span{color:var(--muted-foreground)}

/* Mobile typography and form-layout refinement */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{line-height:1.45}
.small,.tiny{line-height:1.4}
.card p,.info-box,.timing-summary{line-height:1.5}
.page-head h1{line-height:1.15}
.section-title{line-height:1.25}

/* Keep the Lab shortcut readable as three distinct text lines. */
.lab-home-card{padding:14px 15px;min-height:92px}
.lab-home-copy{display:grid!important;grid-template-columns:minmax(0,1fr);gap:2px;min-width:0;align-content:center}
.lab-home-copy>b{display:block;line-height:1.2}
.lab-home-tagline{display:block;font-size:11px;font-weight:700;line-height:1.35;color:var(--muted-foreground);overflow-wrap:break-word}
.lab-home-demo{display:block;font-size:9px;line-height:1.35;color:var(--muted-foreground);opacity:.86}
.lab-home-arrow{align-self:center}

/* Lab creator: explicit one-column field flow prevents label/control collisions. */
.lab-builder{gap:16px}
.form-field{grid-template-columns:minmax(0,1fr);align-items:start;gap:6px}
.form-field>label,.form-field>span{display:block;min-width:0;line-height:1.3}
.form-field small{display:block;margin:0;line-height:1.45}
.form-field input,.form-field select,.form-field textarea{display:block;margin:0;max-width:100%;line-height:1.3}
.form-field textarea{min-height:82px}
.lab-fixed-option{line-height:1.4}
.lab-pool-note{line-height:1.5}
.lab-pool-note b,.lab-pool-note span{display:block}
.lab-check{align-items:flex-start;line-height:1.35}
.lab-check span{min-width:0;gap:4px}
.lab-check b{line-height:1.25}
.lab-check small{line-height:1.45}
.lab-check input{margin-top:2px}
.lab-demo-notice{line-height:1.5}
.lab-demo-notice b{line-height:1.25;margin-bottom:4px}
.lab-demo-notice p{line-height:1.5}
.timing-grid{display:grid;gap:12px}

/* Mobile: stack form pairs earlier than the old 350px breakpoint. */
@media(max-width:520px){
  .app-shell,.screen{padding-left:14px;padding-right:14px}
  .card.lab-builder{padding:15px}
  .grid2.form-grid{grid-template-columns:minmax(0,1fr)!important;gap:12px}
  .form-grid{grid-template-columns:minmax(0,1fr)!important;gap:12px}
  .form-field{width:100%}
  .form-field label{font-size:12px}
  .form-field small{font-size:10px}
  .form-field input,.form-field select,.form-field textarea{font-size:16px;min-height:44px;padding:11px 12px}
  .form-field textarea{min-height:88px}
  .lab-home-card{grid-template-columns:42px minmax(0,1fr) 24px;gap:11px}
  .lab-home-card .stage-dot{width:42px;height:42px;border-radius:14px}
  .lab-home-copy>b{font-size:15px}
  .lab-home-tagline{font-size:11px}
  .lab-home-demo{font-size:9px}
  .lab-demo-notice{padding:11px 12px;gap:9px}
  .lab-demo-notice p{font-size:10px}
  .lab-hero{padding:16px;gap:12px}
  .lab-hero h2{font-size:21px;line-height:1.18}
  .lab-hero p{font-size:11px;line-height:1.5}
  .lab-actions{grid-template-columns:1fr;gap:9px}
  .lab-actions .btn{min-height:46px}
  .lab-pool-note{font-size:10px}
  .lab-check{padding:12px}
  .bottom-nav button{line-height:1.2;padding-top:6px;padding-bottom:6px}
}

@media(max-width:380px){
  .app-shell,.screen{padding-left:12px;padding-right:12px}
  .card.lab-builder{padding:13px}
  .lab-home-card{grid-template-columns:40px minmax(0,1fr) 20px;padding:12px;gap:9px}
  .lab-home-card .stage-dot{width:40px;height:40px}
  .lab-home-arrow{font-size:18px}
  .lab-demo-notice{grid-template-columns:20px minmax(0,1fr)}
}

/* 2026-09 update: logo reveal, consistent icons and word-building stages. */
.ui-icon{width:1.25em;height:1.25em;display:inline-block;flex:0 0 auto;vertical-align:middle;pointer-events:none}
.icon-wrap{display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;pointer-events:none}
.icon-btn .ui-icon,.game-mute .ui-icon{width:21px;height:21px}
.nav-symbol .ui-icon{width:23px;height:23px}
.stage-dot>.ui-icon{width:27px;height:27px}
.btn>.ui-icon{width:18px;height:18px}
.assist .ui-icon{width:19px;height:19px}
.btn .icon-wrap{margin-inline:2px}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--primary);outline-offset:3px}
.splash-screen{position:fixed;inset:0;z-index:2000;background:#333;color:#fff;display:grid;place-items:center;padding:24px;padding-bottom:max(24px,env(safe-area-inset-bottom));isolation:isolate}
.splash-content{width:min(100%,900px);display:flex;flex-direction:column;align-items:center;text-align:center}
.splash-logo{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden}
.splash-logo video,.splash-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.splash-tagline{font-size:clamp(12px,2.2vw,17px);letter-spacing:.08em;color:#eee;margin:-10px 0 28px;line-height:1.8}
.splash-tagline span{color:#ffc857;padding-inline:8px}
.splash-progress{width:104px;height:3px;border-radius:3px;background:#555;overflow:hidden}
.splash-progress::after{content:"";display:block;width:40%;height:100%;background:#33cbce;animation:splash-progress 1.4s ease-in-out infinite}
.splash-skip{margin-top:26px;min-width:112px;min-height:44px;border:1px solid #858585;background:transparent;color:#fff;border-radius:14px;font:inherit;font-size:13px;cursor:pointer}
.splash-skip:hover{background:#414141}
.splash-skip:focus-visible{outline-color:#ffc857}
.splash-static .splash-progress::after{animation:none;width:100%}
@keyframes splash-progress{from{transform:translateX(-100%)}to{transform:translateX(350%)}}
.welcome-logo{background:#fff;padding:6px;border-radius:18px;width:min(340px,95%)}
.variant-picker{padding:0;margin:18px 0 0;border:0;display:grid;gap:9px}
.variant-picker legend{font-size:13px;font-weight:850;padding:0;margin-bottom:9px}
.variant-option{width:100%;display:flex;align-items:center;gap:12px;padding:13px;text-align:left;border:1px solid var(--border);border-radius:15px;background:var(--surface-raised);color:var(--foreground);font:inherit}
.variant-option>.ui-icon{width:25px;height:25px;color:var(--primary)}
.variant-option span{display:grid;gap:5px}
.variant-option b{font-size:13px}
.variant-option small{font-size:11px;line-height:1.45;color:var(--muted-foreground)}
.variant-option.selected{border:2px solid var(--primary);padding:12px;background:color-mix(in srgb,var(--primary) 7%,var(--surface))}
.variant-option:disabled{opacity:.5}
.word-game{width:min(100%,880px);gap:10px;padding-inline:20px}
.word-game .prebrief{max-width:560px;width:100%;margin-inline:auto}
.word-game .hud{grid-template-columns:1fr auto auto}
.word-game .game-audio-control{max-width:340px;width:100%;align-self:flex-end}
.word-game>.prompt{font-size:16px;line-height:1.5}
.word-game>.assist-bar{margin-top:0;flex:0 0 auto}
.word-rules{font-size:13px;line-height:1.6;background:var(--surface-raised);padding:16px;border:1px solid var(--border);border-radius:18px}
.word-rules p{margin:9px 0}
.word-rules p:last-child{margin-bottom:0}
.word-layout{display:grid;grid-template-columns:minmax(0,1fr) 255px;gap:20px;align-items:start}
.word-board-column{display:grid;gap:12px;min-width:0}
.word-game .board-wrap{flex:none;min-height:0}
.word-game .puzzle-grid{max-width:100%;gap:7px;margin:0;padding:2px}
.word-game .tile{min-width:0;min-height:0;font-size:clamp(18px,3vw,26px);border-radius:14px}
.tile.long-value{font-size:clamp(12px,3vw,17px);letter-spacing:-.03em}
.word-game .tile.selected{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary);box-shadow:0 3px 0 color-mix(in srgb,var(--primary) 70%,#000)}
.word-game .tile.hint{outline:3px solid var(--accent);outline-offset:-3px;background:color-mix(in srgb,var(--accent) 24%,var(--surface))}
.word-composer{padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-card);min-width:0}
.word-built{font-size:clamp(21px,3vw,28px);font-weight:900;letter-spacing:.09em;min-height:40px;display:flex;align-items:center;overflow-wrap:anywhere;margin:5px 0}
.word-built .muted{font-weight:500;letter-spacing:0;font-size:14px}
.word-feedback{font-size:12px;line-height:1.45;min-height:34px;color:var(--muted-foreground)}
.word-feedback.good{color:var(--success)}.word-feedback.bad{color:var(--incorrect)}
.word-actions{display:grid;grid-template-columns:auto auto minmax(0,1fr);gap:6px;margin-top:8px}
.word-actions .btn{font-size:12px;padding:11px 9px;min-height:44px}
.word-discoveries{padding:14px;border:1px solid var(--border);background:var(--surface);border-radius:20px;min-width:0}
.word-discoveries h2{font-size:15px;margin:0;font-weight:850}
.word-discoveries p{line-height:1.5}
.word-list{list-style:none;margin:14px 0;padding:0;display:grid;gap:6px;max-height:360px;overflow-y:auto;overscroll-behavior:contain}
.word-list li{display:grid;grid-template-columns:18px minmax(0,1fr) auto;align-items:center;gap:7px;border:1px solid var(--border);border-radius:11px;padding:9px;font-size:12px}
.word-list b{overflow-wrap:anywhere;letter-spacing:.015em}
.word-list .tabular{font-size:11px;color:var(--muted-foreground)}
.word-list .word-found{background:color-mix(in srgb,var(--success) 8%,var(--surface));border-color:color-mix(in srgb,var(--success) 28%,var(--border));color:var(--success)}
.word-list .word-found .tabular{color:var(--success)}
.word-list .word-empty{display:block;font-size:13px;line-height:1.6;padding:20px 12px;color:var(--muted-foreground);border-style:dashed}
.word-tick{display:inline-flex;color:var(--muted-foreground)}.word-found .word-tick{color:var(--success)}
.background-pause{z-index:1200}
@media(min-width:700px){.word-game{padding-top:18px}.word-game .assist-bar{max-width:540px;width:100%;align-self:center}.word-game .hud-title{font-size:16px}.word-game .prompt{font-size:17px}}
@media(max-width:699px){
 .word-game{padding:calc(10px + env(safe-area-inset-top)) 12px calc(16px + env(safe-area-inset-bottom));gap:10px}
 .word-layout{grid-template-columns:1fr;gap:12px}
 .word-game .game-audio-control{max-width:none}
 .word-game .puzzle-grid{max-width:400px;gap:6px;margin-inline:auto}
 .word-game .tile{font-size:clamp(18px,5vw,25px);border-radius:12px}
 .word-discoveries{padding:13px}
 .word-list{grid-template-columns:repeat(2,minmax(0,1fr));max-height:230px;gap:6px}
 .word-list li{font-size:11px;padding:8px 6px;gap:4px;grid-template-columns:15px minmax(0,1fr) auto}
 .word-list .tabular{font-size:10px}
 .word-list .word-empty{grid-column:1/-1}
 .word-rules{font-size:12px;padding:13px}
 .word-built{font-size:24px}
 .word-game>.assist-bar{margin-top:3px}
 .word-game .prebrief{min-height:auto}
 .splash-content{width:calc(100% + 32px)}
 .splash-tagline{font-size:11px;letter-spacing:.02em;margin:2px 0 26px}
 .splash-tagline span{padding-inline:5px}
}
@media(max-width:360px){.word-game{padding-inline:9px}.word-game .puzzle-grid{gap:5px}.word-composer{padding:10px}.word-actions .btn{font-size:11px;padding:10px 6px}.word-list{grid-template-columns:1fr}.word-game .tile{border-radius:9px}}
@media(prefers-reduced-motion:reduce){.splash-progress::after{animation:none;width:100%}}
/* Keep the regular board usable on short landscape viewports; it can scroll. */
.game-screen:not(.word-game) .puzzle-grid{max-width:min(100%,max(270px,calc(100dvh - 330px)))}