:root{--bg-base:#1a1240;--bg-deep:#120d30;--bg-surface:#2e2560;--bg-raised:#3c3489;--accent:#534ab7;--accent-link:#a79dff;--text-primary:#eeedfe;--text-secondary:#cecbf6;--text-muted:#c0bcf4;--success-bg:#0f6e56;--success-text:#e1f5ee;--star:#ef9f27;--border:#3c3489;--color-text-danger:#f4a89a;--op-add-color:#ffd166;--op-add-text:#3a2600;--op-add-soft:#ffd16629;--op-add-ring:#ffd16680;--op-subtract-color:#5ee0ff;--op-subtract-text:#03222b;--op-subtract-soft:#5ee0ff29;--op-subtract-ring:#5ee0ff80;--op-multiply-color:#7cffb2;--op-multiply-text:#03291a;--op-multiply-soft:#7cffb229;--op-multiply-ring:#7cffb280;--op-divide-color:#ff8fe0;--op-divide-text:#3a0630;--op-divide-soft:#ff8fe029;--op-divide-ring:#ff8fe080;--op-sqrt-color:#e7d9ff;--op-sqrt-text:#241a3a;--op-sqrt-soft:#e7d9ff29;--op-sqrt-ring:#e7d9ff80}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{background:var(--bg-base);color:var(--text-secondary);-webkit-font-smoothing:antialiased;min-height:100dvh;font-family:system-ui,-apple-system,sans-serif;overflow-x:hidden}#root{width:clamp(340px,94vw,480px);min-height:100dvh;margin:0 auto}.landscape-overlay{background:var(--bg-deep);z-index:9999;text-align:center;color:var(--text-primary);place-items:center;padding:2rem;display:none;position:fixed;inset:0}@media (orientation:landscape) and (height<=500px){.landscape-overlay{display:grid}}.font-size-large{font-size:112.5%}.font-size-xl{font-size:125%}.dyslexia-font body{font-family:OpenDyslexic,Comic Sans MS,sans-serif}:root.colour-high-contrast{--bg-base:#000;--bg-surface:#0a0a0a;--text-primary:#fff;--text-secondary:#f0f0f0;--text-muted:#ccc;--accent:#4d9fff;--success-bg:#00a86b}:root.deuteranopia{--accent:#07c;--success-bg:#05a;--star:#c80}:root.tritanopia{--accent:#c40;--success-bg:#840;--color-text-danger:#fc0}.reduced-motion *{transition:none!important;animation:none!important}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.toast{background:var(--bg-surface);border:1px solid var(--accent);color:var(--text-secondary);z-index:9000;white-space:nowrap;text-align:center;border-radius:20px;max-width:calc(100% - 32px);padding:10px 16px;font-size:.8125rem;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.topbar{background:var(--bg-deep);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;display:flex}.topbar-left{flex:1;align-items:center;gap:6px;display:flex}.topbar-right{flex:1;justify-content:flex-end;align-items:center;gap:6px;display:flex}.btn-back{background:var(--bg-surface);cursor:pointer;width:30px;height:30px;color:var(--text-secondary);border:none;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;font-size:.9375rem;display:flex}.world-badge{background:var(--bg-surface);color:var(--text-secondary);white-space:nowrap;border-radius:20px;padding:3px 8px;font-size:.75rem}.star-row{justify-content:center;gap:3px;display:flex}.star-icon{color:var(--bg-raised);font-size:.875rem}.star-icon.filled{color:var(--star)}.scene{background:var(--bg-base);align-items:flex-end;gap:10px;padding:14px 14px 0;display:flex}.wizard{flex-shrink:0;align-self:flex-end;width:120px;height:auto}.speech-bubble{background:var(--bg-surface);border:1px solid var(--accent);color:var(--text-secondary);border-radius:10px;flex:1;min-height:44px;padding:9px 12px;font-size:.8125rem;line-height:1.5;position:relative}.speech-bubble:before{content:"";border-top:6px solid #0000;border-bottom:6px solid #0000;border-right:8px solid var(--bg-surface);position:absolute;top:14px;left:-8px}.speech-bubble-sub{color:var(--text-muted);margin-top:2px;font-size:.6875rem}.scales-area{background:var(--bg-base);padding:16px 14px 8px}.scale-container{width:100%;height:170px;position:relative;overflow:visible}.scale-beam{background:var(--accent);transform-origin:50%;z-index:1;border-radius:2px;width:56%;height:4px;transition:transform .55s cubic-bezier(.34,1.56,.64,1);position:absolute;top:34px;left:22%}.scale-pivot{border-bottom:16px solid var(--bg-raised);border-left:9px solid #0000;border-right:9px solid #0000;width:0;height:0;position:absolute;top:38px;left:50%;transform:translate(-50%)}.scale-stand{background:var(--bg-raised);width:6px;height:32px;position:absolute;top:54px;left:calc(50% - 3px)}.scale-plinth{background:var(--bg-surface);border:1px solid var(--border);border-radius:4px;width:50px;height:10px;position:absolute;top:86px;left:calc(50% - 25px)}.scale-chain{background:var(--bg-raised);width:2px;height:18px;position:absolute;top:38px}.scale-chain-left{left:calc(22% - 1px)}.scale-chain-right{left:calc(78% - 1px)}.scale-pan{background:var(--bg-surface);border:2px solid var(--accent);border-radius:6px 6px 22px 22px;justify-content:center;align-items:center;width:24%;min-height:60px;padding:4px;transition:transform .55s cubic-bezier(.34,1.56,.64,1),box-shadow .5s;display:flex;position:absolute;top:56px}.scale-pan-left{left:10%}.scale-pan-right{left:66%}.scale-equals{height:60px;color:var(--text-primary);pointer-events:none;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;font-size:1.1875rem;font-weight:700;display:flex;position:absolute;top:56px;left:0;right:0}.scale-pan[data-op=add]{--cast-color:var(--op-add-color);--cast-text:var(--op-add-text);--cast-ring:var(--op-add-ring)}.scale-pan[data-op=subtract]{--cast-color:var(--op-subtract-color);--cast-text:var(--op-subtract-text);--cast-ring:var(--op-subtract-ring)}.scale-pan[data-op=multiply]{--cast-color:var(--op-multiply-color);--cast-text:var(--op-multiply-text);--cast-ring:var(--op-multiply-ring)}.scale-pan[data-op=divide]{--cast-color:var(--op-divide-color);--cast-text:var(--op-divide-text);--cast-ring:var(--op-divide-ring)}.scale-pan[data-op=sqrt]{--cast-color:var(--op-sqrt-color);--cast-text:var(--op-sqrt-text);--cast-ring:var(--op-sqrt-ring)}.scale-pan.cast-active{box-shadow:0 0 0 4px var(--cast-ring), 0 0 20px 6px var(--cast-ring)}.scale-beam.phase-left-up{transform:rotate(5deg)}.scale-beam.phase-left-down{transform:rotate(-5deg)}.scale-pan.pan-up{transform:translateY(-9px)}.scale-pan.pan-down{transform:translateY(9px)}.scale-cast-pill{opacity:0;white-space:nowrap;pointer-events:none;background:var(--cast-color,var(--accent));color:var(--cast-text,var(--text-primary));z-index:2;border-radius:20px;padding:3px 9px;font-size:.6875rem;font-weight:700;transition:opacity .5s,transform .5s;position:absolute;top:calc(100% + 4px);left:50%;transform:translate(-50%)translateY(-6px)}.scale-cast-pill.visible{opacity:1;transform:translate(-50%)translateY(0)}@media (prefers-reduced-motion:reduce){.scale-beam{transition:none}.scale-beam.phase-left-up,.scale-beam.phase-left-down{transform:none}.scale-pan{transition:box-shadow .2s}.scale-pan.pan-up,.scale-pan.pan-down{transform:none}.scale-cast-pill{transition:opacity .2s}}.expr-chip{background:var(--bg-raised);color:var(--text-primary);text-align:center;word-break:break-all;border-radius:5px;width:100%;padding:4px 8px;font-size:.875rem;font-weight:500}.expr-chip.world-7{word-break:normal;white-space:nowrap;max-width:100%;font-size:.8125rem;overflow-x:auto}.expr-chip.balanced{color:var(--success-text);background:#085041}.frac{vertical-align:middle;flex-direction:column;align-items:center;gap:1px;line-height:1;display:inline-flex}.frac-num{text-align:center;border-bottom:1px solid;padding:0 3px 1px;line-height:1.3}.frac-den{text-align:center;padding:1px 3px 0;line-height:1.3}.frac .frac{font-size:.8em}.sqrt-expr{vertical-align:middle;align-items:baseline;display:inline-flex}.sqrt-radicand{border-top:1.5px solid;padding:1px 3px 0}.ops-section{background:var(--bg-deep);flex-direction:column;gap:10px;padding:10px 14px;display:flex}.ops-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.ops-grid.has-sqrt{grid-template-columns:repeat(5,1fr)}.op-tile{background:var(--bg-surface);border:1px solid var(--border);cursor:pointer;border-radius:9px;flex-direction:column;align-items:center;gap:2px;min-height:52px;padding:7px 3px;display:flex}.op-tile:disabled{opacity:.45;cursor:not-allowed}.op-tile[data-op=add]{--op-color:var(--op-add-color);--op-soft:var(--op-add-soft)}.op-tile[data-op=subtract]{--op-color:var(--op-subtract-color);--op-soft:var(--op-subtract-soft)}.op-tile[data-op=multiply]{--op-color:var(--op-multiply-color);--op-soft:var(--op-multiply-soft)}.op-tile[data-op=divide]{--op-color:var(--op-divide-color);--op-soft:var(--op-divide-soft)}.op-tile[data-op=sqrt]{--op-color:var(--op-sqrt-color);--op-soft:var(--op-sqrt-soft)}.op-tile.active{background:var(--op-soft);border-color:var(--op-color)}.op-tile-icon{color:var(--text-muted);font-size:1.0625rem}.op-tile.active .op-tile-icon{color:var(--op-color)}.op-tile-label{color:var(--text-muted);font-size:.6875rem}.op-tile.active .op-tile-label{color:var(--text-secondary)}.value-row{align-items:center;gap:8px;display:flex}.value-stepper{background:var(--bg-surface);border:1px solid var(--border);cursor:pointer;width:36px;height:36px;color:var(--text-secondary);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;font-size:1.125rem;display:flex}.value-input{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-primary);text-align:center;border-radius:7px;flex:1;min-width:0;padding:6px;font-size:1.125rem;font-weight:500}.value-input:focus{outline:2px solid var(--accent)}.value-error{color:var(--color-text-danger);text-align:center;font-size:.6875rem}.term-grid[data-op=add],.value-row[data-op=add]{--op-color:var(--op-add-color);--op-soft:var(--op-add-soft)}.term-grid[data-op=subtract],.value-row[data-op=subtract]{--op-color:var(--op-subtract-color);--op-soft:var(--op-subtract-soft)}.term-grid[data-op=multiply],.value-row[data-op=multiply]{--op-color:var(--op-multiply-color);--op-soft:var(--op-multiply-soft)}.term-grid[data-op=divide],.value-row[data-op=divide]{--op-color:var(--op-divide-color);--op-soft:var(--op-divide-soft)}.term-grid{flex-wrap:wrap;justify-content:center;gap:10px;padding:8px 16px;display:flex}.term-btn{border:2px solid var(--border);background:var(--bg-surface);min-width:60px;height:48px;color:var(--text-primary);letter-spacing:.02em;cursor:pointer;border-radius:10px;justify-content:center;align-items:center;padding:0 16px;font-size:1.0625rem;font-weight:700;transition:background .15s,border-color .15s,color .15s;display:flex}.term-btn.active{background:var(--op-soft,var(--op-subtract-soft));border-color:var(--op-color,var(--op-subtract-color));color:var(--op-color,var(--op-subtract-color))}.term-btn:disabled{opacity:.45;cursor:not-allowed}.value-row .term-btn{flex-shrink:0;min-width:40px;height:36px;padding:0 10px;font-size:1rem}.apply-btn{background:var(--accent);width:100%;color:var(--text-primary);cursor:pointer;border:none;border-radius:9px;min-height:44px;padding:9px;font-size:.9375rem;font-weight:500}.apply-btn:disabled{opacity:.4;cursor:not-allowed}.btmbar{background:var(--bg-deep);border-top:1px solid var(--border);justify-content:space-between;align-items:center;padding:9px 14px;display:flex}.moves-label{color:var(--text-muted);font-size:.75rem}.par-pill{color:#fac775;background:#412402;border-radius:20px;padding:3px 10px;font-size:.6875rem}.btmbar-actions{align-items:center;gap:6px;display:flex}.icon-btn{background:var(--bg-surface);border:1px solid var(--border);width:36px;min-height:44px;color:var(--text-muted);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;font-size:1rem;transition:color .15s,border-color .15s;display:flex}.icon-btn:hover:not(:disabled){color:var(--text-primary);border-color:var(--accent)}.icon-btn:disabled{opacity:.3;cursor:default}.hint-btn{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-muted);cursor:pointer;border-radius:7px;align-items:center;gap:4px;min-height:44px;padding:6px 10px;font-size:.75rem;display:flex}.hint-backdrop{z-index:500;background:#120d30d9;align-items:flex-end;padding:0 0 80px;display:flex;position:fixed;inset:0}.hint-panel{background:var(--bg-surface);border:1px solid var(--accent);border-radius:14px 14px 0 0;flex-direction:column;gap:12px;width:100%;padding:20px 18px;display:flex}.hint-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.75rem}.hint-text{color:var(--text-secondary);font-size:.9375rem;line-height:1.5}.hint-op-pill{vertical-align:middle;border-radius:20px;padding:1px 7px;font-size:.8125rem;font-weight:700;line-height:1.5;display:inline-block}.hint-step{color:var(--success-text);background:var(--success-bg);border-radius:7px;padding:8px 12px;font-size:.8125rem;line-height:1.5}.hint-close-btn{background:var(--accent);color:var(--text-primary);cursor:pointer;border:none;border-radius:9px;min-height:44px;padding:10px;font-size:.875rem}.win-screen{background:var(--bg-base);flex-direction:column;gap:18px;min-height:100dvh;padding:24px 18px;display:flex}.win-spell-name{color:var(--text-primary);text-align:center;font-size:1.25rem;font-weight:500}.spell-reveal{flex-direction:column;align-items:center;gap:4px;display:flex}.spell-reveal-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px}.spell-reveal-medallion{border:3px solid var(--star);background:var(--reveal-accent,var(--accent));border-radius:50%;justify-content:center;align-items:center;width:74px;height:74px;margin:10px 0 4px;animation:.7s cubic-bezier(.34,1.56,.64,1) both spell-reveal-pop;display:flex;position:relative;box-shadow:0 4px #0000004d}.spell-reveal-medallion:after{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(105deg,#0000 40%,#fff3 50%,#0000 60%) 0 0/200% 100%;animation:2.5s ease-in-out infinite spell-card-shimmer;position:absolute;inset:0}.spell-reveal-halo{background:radial-gradient(circle, var(--reveal-accent,var(--accent)) 0%, transparent 70%);opacity:.5;z-index:-1;border-radius:50%;animation:1.8s ease-in-out infinite trail-pulse;position:absolute;inset:-14px}.spell-reveal-sparkle{color:var(--star);font-size:12px;animation:1.6s ease-in-out infinite spell-reveal-sparkle-twinkle;position:absolute}.spell-reveal-sparkle-1{animation-delay:0s;top:-6px;left:2px}.spell-reveal-sparkle-2{animation-delay:.4s;top:10px;right:-10px}.spell-reveal-sparkle-3{animation-delay:.8s;bottom:-4px;left:-8px}@keyframes spell-reveal-pop{0%{transform:scale(0)}to{transform:scale(1)}}@keyframes spell-reveal-sparkle-twinkle{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}.spell-reveal-name{color:var(--text-primary);font-size:15px;font-weight:700}.spell-reveal-caption{color:var(--text-muted);font-size:11px}@media (prefers-reduced-motion:reduce){.spell-reveal-medallion,.spell-reveal-medallion:after,.spell-reveal-halo,.spell-reveal-sparkle{animation:none}}.win-stars{justify-content:center;gap:8px;display:flex}.win-star{color:var(--bg-raised);font-size:2rem}.win-star.filled{color:var(--star)}.step-log{background:var(--bg-surface);border:1px solid var(--accent);border-radius:10px;padding:14px}.step-log-header{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;justify-content:space-between;margin-bottom:8px;font-size:.6875rem;display:flex}.step-log-divider{border-top:2px solid var(--accent);margin-top:2px;margin-bottom:12px;padding-top:0}.step-initial{color:var(--text-secondary);padding-bottom:10px;padding-left:8px;font-size:.875rem}.step-entry[data-op=add]{--step-op-color:var(--op-add-color)}.step-entry[data-op=subtract]{--step-op-color:var(--op-subtract-color)}.step-entry[data-op=multiply]{--step-op-color:var(--op-multiply-color)}.step-entry[data-op=divide]{--step-op-color:var(--op-divide-color)}.step-entry[data-op=sqrt]{--step-op-color:var(--op-sqrt-color)}.step-entry{border-left:2px solid #0000;padding-left:8px;font-size:.8125rem;line-height:2.1}.step-entry[data-op]{border-left-color:var(--step-op-color)}.step-op{color:var(--step-op-color,var(--success-text))}.step-result{color:var(--text-secondary)}.step-final{color:#9fe1cb;font-weight:500}.win-actions{gap:10px;margin-top:auto;display:flex}.btn-replay{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;border-radius:9px;flex:1;min-height:44px;padding:10px;font-size:.875rem}.btn-next{background:var(--accent);color:var(--text-primary);cursor:pointer;border:none;border-radius:9px;flex:2;min-height:44px;padding:10px;font-size:.875rem;font-weight:500}.win-guest-prompt{text-align:center;color:var(--text-muted);font-size:.75rem}.wc-screen{background:var(--bg-base);text-align:center;flex-direction:column;align-items:center;gap:20px;min-height:100dvh;padding:40px 18px 24px;display:flex}.wc-world-name{color:var(--text-primary);font-size:1.25rem;font-weight:500}.wc-stars{flex-wrap:wrap;justify-content:center;gap:4px;display:flex}.wc-continue-btn{background:var(--accent);color:var(--text-primary);cursor:pointer;border:none;border-radius:9px;align-self:stretch;min-height:44px;margin-top:auto;padding:12px 32px;font-size:.9375rem;font-weight:500}.gc-confirm{flex-direction:column;align-self:stretch;align-items:center;gap:12px;display:flex}.gc-confirm-btns{align-self:stretch;gap:10px;display:flex}.gc-cancel-btn{background:var(--bg-surface);color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;border-radius:9px;flex:1;min-height:44px;padding:12px;font-size:.9375rem}.gc-reset-btn{background:var(--bg-surface);color:var(--color-text-danger);border:1px solid var(--color-text-danger);cursor:pointer;border-radius:9px;flex:1;min-height:44px;padding:12px;font-size:.9375rem;font-weight:500}.paywall-backdrop{z-index:8000;background:#0a081ecc;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}@media (height>=600px){.paywall-backdrop{align-items:center}}.paywall-panel{background:var(--bg-surface);border:1px solid var(--border);border-radius:18px 18px 0 0;flex-direction:column;gap:14px;width:100%;max-width:420px;max-height:90dvh;padding:28px 20px 36px;display:flex;position:relative;overflow-y:auto}@media (height>=600px){.paywall-panel{border-radius:18px;max-height:85dvh}}.paywall-close{background:var(--bg-raised);width:32px;height:32px;color:var(--text-muted);cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1rem;display:flex;position:absolute;top:14px;right:14px}.paywall-title{color:var(--text-primary);text-align:center;margin:0;padding-right:36px;font-size:1.25rem;font-weight:500}.paywall-pitch{color:var(--text-secondary);text-align:center;margin:0;font-size:.9375rem;line-height:1.4}.paywall-features{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.paywall-features li{color:var(--text-secondary);align-items:center;gap:6px;font-size:.875rem;display:flex}.paywall-features .ti-check{color:var(--success-text)}.paywall-buy-btn{width:100%;min-height:48px;font-size:1rem}.paywall-guest-notice{color:var(--text-muted);text-align:center;margin:0;font-size:.8125rem;line-height:1.5}.paywall-already-bought{color:var(--text-muted);text-align:center;margin:0;font-size:.75rem}.paywall-polling{flex-direction:column;align-items:center;gap:8px;padding:8px 0;display:flex}.paywall-polling p{color:var(--text-secondary);text-align:center;margin:0;font-size:.875rem}.paywall-polling-sub{font-size:.75rem;color:var(--text-muted)!important}.paywall-timeout{flex-direction:column;gap:12px;display:flex}.paywall-timeout p{color:var(--text-secondary);text-align:center;margin:0;font-size:.875rem;line-height:1.5}.world-map{background:var(--bg-base);flex-direction:column;min-height:100dvh;display:flex;position:relative;overflow:hidden}.world-map-glow{pointer-events:none;background:radial-gradient(circle, color-mix(in srgb, var(--bg-accent) 55%, transparent) 0%, transparent 70%);border-radius:50%;width:200px;height:200px;position:absolute}.world-map-glow-tl{top:20px;left:-50px}.world-map-glow-br{bottom:-30px;right:-50px}.world-map-icon-watermark{opacity:.4;mix-blend-mode:luminosity;pointer-events:none;position:absolute;bottom:-10px;right:-40px;transform:rotate(-8deg)}.world-map-icon-watermark svg path:first-child{display:none}@media (width>=700px){.world-map{width:min(100vw - 32px,640px);position:relative;left:50%;transform:translate(-50%)}}.world-map-topbar{background:var(--bg-deep);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px;display:flex}.world-map-title{color:var(--text-primary);font-size:1.125rem;font-weight:500}.worlds-grid{grid-template-columns:1fr 1fr;gap:10px;padding:16px 14px;display:grid}.world-card{background:var(--bg-surface);border:2.5px solid var(--accent);cursor:pointer;border-radius:14px;flex-direction:column;gap:5px;min-width:0;min-height:90px;padding:11px;display:flex;position:relative}.world-card.completed{background:var(--success-bg);border-color:#1d9e75}.world-card.locked{background:var(--bg-base);border:1px dashed var(--bg-raised);opacity:.7;cursor:default}.world-card.completed,.world-card:not(.locked){box-shadow:0 4px #0000004d}.world-card-medallion{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex;box-shadow:0 2px #00000040}.world-card-ribbon{border-top:22px solid var(--star);border-left:16px solid #0000;border-right:16px solid #0000;width:0;height:0;position:absolute;top:0;right:8px}.world-card-ribbon-star{color:#3a2600;font-size:11px;line-height:1;position:absolute;top:2px;left:-5.5px}.world-card-title{color:var(--text-primary);font-size:.875rem;font-weight:500}.world-card.completed .world-card-title{color:var(--success-text)}.world-card.locked .world-card-title{color:var(--bg-raised)}.world-card-sub{color:var(--text-muted);font-size:.6875rem}.world-card.completed .world-card-sub{color:var(--success-text);opacity:.85}.world-card.locked .world-card-sub{color:var(--bg-raised)}.world-card-stars{flex-wrap:wrap;gap:2px;margin-top:2px;display:flex}.world-card-star{color:var(--bg-raised);font-size:13px}.world-card-star.filled{color:var(--star);filter:drop-shadow(0 0 3px #ef9f27b3)}.world-card-op-row{align-items:center;gap:4px;margin-top:2px;display:flex}.op-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.css-padlock{color:var(--bg-raised);flex-direction:column;align-items:center;display:inline-flex}.css-padlock-arc{border:2px solid;border-bottom:none;border-radius:5px 5px 0 0;width:10px;height:6px;display:block}.css-padlock-body{background:currentColor;border-radius:2px;width:14px;height:10px;display:block}.world-card-unlock-label{color:var(--bg-raised);font-size:.6875rem}.auth-screen{background:var(--bg-base);justify-content:center;align-items:center;min-height:100dvh;padding:24px 16px;display:flex}.auth-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:16px;width:100%;max-width:380px;padding:28px 20px;display:flex}.auth-title{color:var(--text-primary);text-align:center;margin:0;font-size:1.25rem;font-weight:500}.auth-tabs{border-bottom:1px solid var(--border);gap:0;display:flex}.auth-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;margin-bottom:-1px;padding:8px 4px;font-size:.875rem}.auth-tab.active{color:var(--accent-link);border-bottom-color:var(--accent-link)}.auth-field{flex-direction:column;gap:5px;display:flex}.auth-field label{color:var(--text-secondary);font-size:.8125rem}.auth-field input{background:var(--bg-raised);border:1px solid var(--border);color:var(--text-primary);box-sizing:border-box;border-radius:8px;width:100%;padding:10px 12px;font-size:.9375rem}.auth-field input[aria-invalid=true]{border-color:var(--color-text-danger,#e05c5c)}.auth-error{color:var(--color-text-danger,#e05c5c);margin:0;font-size:.75rem}.auth-hint{color:var(--text-secondary);margin:0;font-size:.75rem}.auth-school-badge{color:var(--success-text);background:var(--success-bg);border-radius:8px;margin:0;padding:5px 10px;font-size:.75rem}.auth-submit{justify-content:center;align-items:center;width:100%;min-height:44px;display:flex}.auth-spinner{border:2px solid #fff6;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite auth-spin;display:inline-block}@keyframes auth-spin{to{transform:rotate(360deg)}}.auth-link{color:var(--accent-link);cursor:pointer;text-align:center;background:0 0;border:none;padding:0;font-size:.8125rem}.auth-forgot{align-self:flex-end;font-size:.75rem}.auth-guest{margin-top:4px}.auth-confirm-text{color:var(--text-secondary);text-align:center;margin:0;font-size:.875rem;line-height:1.5}.auth-sso{flex-direction:column;gap:8px;display:flex}.auth-sso-btn{background:var(--bg-raised);border:1px solid var(--border);color:var(--text-primary);cursor:pointer;text-align:left;border-radius:8px;align-items:center;gap:10px;width:100%;min-height:44px;padding:10px 14px;font-size:.875rem;display:flex}.auth-sso-btn:hover:not(:disabled){border-color:var(--accent);background:#453d99}.auth-sso-btn:disabled{opacity:.6;cursor:default}.auth-sso-icon{flex-shrink:0;width:20px;height:20px}.auth-divider{color:var(--text-muted);align-items:center;gap:10px;font-size:.75rem;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--border);flex:1;height:1px}.btn{cursor:pointer;border:none;border-radius:9px;min-height:44px;padding:11px 20px;font-size:.9375rem;font-weight:500}.btn:disabled{opacity:.6;cursor:default}.btn-primary{background:var(--accent);color:var(--text-primary)}.world-map-topbar-sign-in{border:1px solid var(--accent-link);color:var(--accent-link);cursor:pointer;background:0 0;border-radius:7px;padding:5px 12px;font-size:.8125rem}.puzzle-trail{background:var(--bg-base);flex-direction:column;min-height:100dvh;display:flex}.trail-wizard-row{background:linear-gradient(to bottom, #152250, var(--bg-base));align-items:center;gap:10px;padding:14px;display:flex}.trail-wizard-img{object-fit:cover;border-radius:50%;flex-shrink:0;width:80px;height:80px}.trail-wizard-bubble{background:var(--bg-surface);border:1px solid var(--world-accent,var(--accent));color:var(--text-secondary);border-radius:12px 12px 12px 3px;flex:1;padding:9px 12px;font-size:.75rem}.trail-container{width:100%;height:640px;position:relative;overflow:hidden}.trail-svg,.trail-motif{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.trail-motif-icon{opacity:.16;position:absolute}.trail-motif-icon svg path:first-child{display:none}.trail-icon-watermark{opacity:.45;mix-blend-mode:luminosity;pointer-events:none;position:absolute;bottom:5px;right:-65px}.trail-icon-watermark svg path:first-child{display:none}.trail-glow{pointer-events:none;border-radius:50%;width:160px;height:160px;position:absolute}.trail-glow-tl{background:radial-gradient(circle, var(--world-accent-soft,#534ab74d) 0%, transparent 70%);top:40px;left:-30px}.trail-glow-br{background:radial-gradient(circle, var(--world-accent-soft,#534ab74d) 0%, transparent 70%);bottom:40px;right:-30px}.trail-node{cursor:default;flex-direction:column;align-items:center;gap:4px;display:flex;position:absolute;transform:translate(-50%,-50%)}.trail-node-completed{background:var(--success-bg);cursor:pointer;border:3px solid #2bd69b;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:0;width:52px;height:52px;display:flex;box-shadow:0 3px #00000040}.trail-node-current{background:var(--world-accent,var(--accent));border:3px solid color-mix(in srgb, var(--world-accent,var(--accent)) 70%, white);cursor:pointer;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:0;width:64px;height:64px;display:flex;position:relative;box-shadow:0 3px #00000040}.trail-node-locked{background:var(--bg-base);border:2px dashed var(--bg-raised);opacity:.65;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.trail-node-halo{background:radial-gradient(circle, var(--world-accent-soft,#534ab78c) 0%, transparent 70%);pointer-events:none;z-index:-1;border-radius:50%;animation:1.8s ease-in-out infinite trail-pulse;position:absolute;inset:-12px}@keyframes trail-pulse{0%,to{opacity:.55;transform:scale(1)}50%{opacity:.9;transform:scale(1.08)}}@media (prefers-reduced-motion:reduce){.trail-node-halo{animation:none}}.trail-node-number{color:var(--node-text,var(--text-primary));font-size:1rem;font-weight:500;line-height:1}.trail-node-completed .trail-node-number{color:var(--success-text)}.trail-node-stars{letter-spacing:1px;margin-top:6px;font-size:.875rem;line-height:1}.trail-node-play-pill{background:var(--star);color:#3a2600;white-space:nowrap;border-radius:20px;padding:2px 8px;font-size:.6562rem;font-weight:700;position:absolute;top:calc(100% + 6px);left:50%;transform:translate(-50%);box-shadow:0 2px #00000040}.icon-btn{background:var(--bg-surface);cursor:pointer;width:44px;height:44px;color:var(--text-muted);border:none;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;font-size:1.0625rem;display:flex}.overlay-screen{background:var(--bg-base);z-index:700;flex-direction:column;display:flex;position:fixed;inset:0}.overlay-topbar{background:var(--bg-deep);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:14px;display:flex}.overlay-title{color:var(--text-primary);font-size:1.125rem;font-weight:500}.overlay-close-btn{background:var(--bg-surface);cursor:pointer;width:44px;height:44px;color:var(--text-muted);border:none;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;font-size:1.125rem;display:flex}.overlay-guest-banner{background:var(--bg-surface);color:var(--text-muted);text-align:center;flex-shrink:0;padding:10px 14px;font-size:.75rem}.overlay-scroll{flex:1;padding:16px 14px 32px;overflow-y:auto}.spell-book-world-group{margin-bottom:20px}.spell-book-world-header{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px;font-size:.75rem}.spell-book-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.spell-card{background:var(--bg-surface);border:2px solid var(--border);border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-height:104px;padding:11px;display:flex;position:relative;overflow:hidden}.spell-card-earned{border-width:2.5px;box-shadow:0 4px #0000004d}.spell-card-medallion{border:2px solid var(--star);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex;box-shadow:0 2px #00000040}.spell-card-icon{flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.spell-card-icon-dim svg{filter:grayscale();opacity:.4}.spell-card-name{color:var(--text-primary);text-align:center;font-size:.8125rem;font-weight:500}.spell-card-world{color:var(--text-muted);text-align:center;font-size:.6875rem}.spell-card-ribbon-rare{background:var(--star);color:#3a2600;border-radius:0 0 8px;padding:2px 8px 2px 6px;font-size:8px;font-weight:700;position:absolute;top:-1px;left:-1px}.spell-card-earned:after{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(105deg,#0000 40%,#ffffff24 50%,#0000 60%) 0 0/200% 100%;animation:3s ease-in-out infinite spell-card-shimmer;position:absolute;inset:0}.spell-card-rare:after{background:linear-gradient(105deg,#0000 40%,#9fe1cb26 50%,#0000 60%);animation-duration:2s}@keyframes spell-card-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (prefers-reduced-motion:reduce){.spell-card-earned:after{animation:none}}.spell-card-solved{background:var(--bg-base);border-color:var(--bg-raised)}.spell-card-solved .spell-card-name{color:var(--text-muted)}.spell-card-locked-hint{color:var(--text-muted);font-size:.6875rem}.spell-card-unsolved{background:var(--bg-base);border-color:var(--bg-raised);align-items:center}.spell-card-unknown{color:var(--bg-raised);font-size:1.125rem;font-weight:500}.spellcast-banner{background:var(--bg-raised);border:1px solid var(--accent);color:var(--text-primary);cursor:pointer;border-radius:14px;align-items:center;gap:10px;margin:0 14px 16px;padding:12px 14px;font-size:1rem;display:flex}.spellcast-banner-text{text-align:left;flex-direction:column;flex:1;align-items:flex-start;display:flex}.spellcast-banner-title{font-size:.9375rem;font-weight:500}.spellcast-banner-sub{color:var(--text-muted);font-size:.75rem}.spellcast-banner-arrow{color:var(--text-muted)}.spellcast-tier-card{background:var(--bg-surface);border:2px solid var(--border);border-radius:14px;flex-direction:column;gap:10px;margin-bottom:14px;padding:14px;display:flex}.spellcast-tier-card.locked{opacity:.6}.spellcast-tier-header{color:var(--text-primary);justify-content:space-between;align-items:center;display:flex}.spellcast-tier-name{font-size:.9375rem;font-weight:500}.spellcast-tier-hint{color:var(--text-muted);font-size:.8125rem}.spellcast-tier-best{color:var(--text-secondary);font-size:.8125rem}.spellcast-segmented{flex-wrap:wrap;gap:6px;display:flex}.spellcast-segment{background:var(--bg-raised);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;border-radius:8px;padding:8px 10px;font-size:.75rem}.spellcast-segment.selected{background:var(--accent);border-color:var(--accent);color:var(--text-primary)}.spellcast-summary-breakdown{background:var(--bg-surface);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:6px;width:100%;max-width:280px;padding:12px 16px;display:flex}.spellcast-summary-row{color:var(--text-secondary);justify-content:space-between;font-size:.875rem;display:flex}.spellcast-summary-new{color:var(--star);font-weight:600}.spellcast-summary-done-btn{background:var(--bg-surface);color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;border-radius:9px;padding:12px 32px;font-size:.9375rem}.spellcast-progress-pill{color:var(--text-muted);font-size:.75rem}.spellcast-start-btn{background:var(--accent);color:var(--text-primary);cursor:pointer;border:none;border-radius:10px;padding:12px;font-size:.9375rem;font-weight:500}.bg-picker-fab{background:var(--accent);width:48px;height:48px;color:var(--text-primary);cursor:pointer;z-index:200;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.1875rem;display:flex;position:fixed;bottom:16px;right:16px;box-shadow:0 3px 10px #00000059}.bg-picker-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.bg-swatch{border:2px solid var(--border);cursor:pointer;border-radius:11px;flex-direction:column;justify-content:flex-end;min-height:110px;padding:10px;display:flex;position:relative;overflow:hidden}.bg-swatch.active{border-color:var(--accent)}.bg-swatch.locked{cursor:default;opacity:.55}.bg-swatch-name{color:var(--text-primary);z-index:1;font-size:.75rem;font-weight:500;position:relative}.bg-swatch-unlock{color:var(--text-muted);z-index:1;font-size:.6562rem;position:relative}.bg-swatch-lock{color:var(--text-muted);z-index:1;position:absolute;top:10px;right:10px}.world-map.bg-default,.puzzle-trail.bg-default,body.bg-default{background:var(--bg-base)}.world-map.bg-forest,.puzzle-trail.bg-forest,body.bg-forest{background:linear-gradient(160deg,#0d2b1c 0%,#1a1240 70%)}.world-map.bg-ice,.puzzle-trail.bg-ice,body.bg-ice{background:linear-gradient(160deg,#0c2233 0%,#1a1240 70%)}.world-map.bg-volcano,.puzzle-trail.bg-volcano,body.bg-volcano{background:linear-gradient(160deg,#2b0f0d 0%,#1a1240 70%)}.world-map.bg-sky,.puzzle-trail.bg-sky,body.bg-sky{background:linear-gradient(160deg,#0d1a33 0%,#1a1240 70%)}.world-map.bg-crystal,.puzzle-trail.bg-crystal,body.bg-crystal{background:linear-gradient(160deg,#1c0d33 0%,#1a1240 70%)}.world-map.bg-shadow,.puzzle-trail.bg-shadow,body.bg-shadow{background:linear-gradient(160deg,#0d0d18 0%,#1a1240 70%)}.world-map.bg-marsh,.puzzle-trail.bg-marsh,body.bg-marsh{background:linear-gradient(160deg,#0a2420 0%,#1a1240 70%)}.bg-swatch.swatch-default{background:linear-gradient(160deg,#1a1240 0%,#120d30 100%)}.bg-swatch.swatch-forest{background:linear-gradient(160deg,#1a5c38 0%,#0d2b1c 100%)}.bg-swatch.swatch-ice{background:linear-gradient(160deg,#3fb8e0 0%,#0c2233 100%)}.bg-swatch.swatch-volcano{background:linear-gradient(160deg,#ff7a3d 0%,#2b0f0d 100%)}.bg-swatch.swatch-sky{background:linear-gradient(160deg,#6f8fff 0%,#0d1a33 100%)}.bg-swatch.swatch-crystal{background:linear-gradient(160deg,#c27bff 0%,#1c0d33 100%)}.bg-swatch.swatch-shadow{background:linear-gradient(160deg,#4a4a63 0%,#0d0d18 100%)}.bg-swatch:after{content:"";background:radial-gradient(circle at 70% 20%,#ffffff2e,#0000 60%);animation:4s ease-in-out infinite bg-shimmer;position:absolute;inset:0}@keyframes bg-shimmer{0%,to{opacity:.6}50%{opacity:1}}@media (prefers-reduced-motion:reduce){.bg-swatch:after{animation:none}}.reduced-motion .bg-swatch:after{animation:none}.settings-section{margin-bottom:24px}.settings-section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px;font-size:.75rem}.settings-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:12px 0;display:flex}.settings-row:last-child{border-bottom:none}.settings-row-label{color:var(--text-secondary);font-size:.8125rem}.settings-row-sublabel{color:var(--text-muted);margin-top:2px;font-size:.6875rem}.settings-segmented{background:var(--bg-surface);border:1px solid var(--border);border-radius:9px;display:flex;overflow:hidden}.settings-segmented button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;min-height:44px;padding:7px 10px;font-size:.75rem}.settings-segmented button.active{background:var(--accent);color:var(--text-primary)}.settings-select{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-secondary);border-radius:9px;min-height:44px;padding:8px 10px;font-size:.75rem}.settings-toggle{background:var(--bg-raised);cursor:pointer;border:none;border-radius:20px;flex-shrink:0;width:40px;height:22px;position:relative}.settings-toggle.on{background:var(--accent)}.settings-toggle:after{content:"";background:var(--text-primary);border-radius:50%;width:18px;height:18px;transition:transform .15s;position:absolute;top:2px;left:2px}.settings-toggle.on:after{transform:translate(18px)}.reduced-motion .settings-toggle:after{transition:none}.settings-toggle:disabled{opacity:.5;cursor:default}.settings-account-row{color:var(--text-secondary);padding:10px 0;font-size:.8125rem}.settings-btn{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;text-align:left;border-radius:9px;width:100%;min-height:44px;padding:10px;font-size:.8125rem}.settings-btn-danger{color:var(--color-text-danger)}