.hidden{display:none!important}.brain-page{padding:28px 0 90px}.brain-nav{display:flex;gap:7px;overflow-x:auto;padding:0 0 16px;scrollbar-width:thin}.brain-nav a{white-space:nowrap;padding:10px 14px;border:1px solid #4b5775;color:#cbd5e7;font-size:13px;font-weight:700;transition:background-color .16s,color .16s}.brain-nav a:hover,.brain-nav a[aria-current="page"]{background:var(--lime);color:var(--night);border-color:var(--lime)}.brain-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 0 30px}.brain-kicker{color:var(--lime);font-size:13px;font-weight:800;margin:0 0 8px}.brain-heading h1{font-family:'Space Grotesk',Arial,sans-serif;font-size:clamp(46px,6vw,78px);letter-spacing:-.075em;line-height:1.02;margin:0 0 9px}.brain-heading p:last-child{color:var(--muted);font-size:15px;line-height:1.5;max-width:620px;margin:0}.brain-mark{width:115px;height:115px;flex:none;border:2px solid currentColor;border-radius:28px;display:grid;place-items:center;color:var(--lime);font-size:76px;transform:rotate(-10deg)}body[data-game="memory"] .brain-mark{color:#f9c985}body[data-game="focus"] .brain-mark{color:#a4dce4}body[data-game="aim"] .brain-mark{color:#f59eac}body[data-game="reflex"] .brain-mark{color:#c8e86d}body[data-game="create"] .brain-mark{color:#b9a2f3}
.brain-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(270px,1fr);gap:24px;align-items:start}.brain-main,.brain-aside{min-width:0}.brain-setup,.brain-arena,.brain-panel{border:1px solid var(--line);background:var(--panel)}.brain-setup{padding:34px;max-width:550px}.brain-setup h2,.brain-panel h2{font-family:'Space Grotesk',Arial,sans-serif;letter-spacing:-.04em}.brain-setup h2{font-size:27px;margin:0 0 8px}.brain-setup p,.brain-panel p{font-size:13px;color:var(--muted);line-height:1.55}.brain-setup label{display:block;margin:24px 0 8px;font-size:12px;font-weight:800}.brain-setup input{width:100%;height:49px;border:1px solid #65708a;background:#10182d;color:var(--cream);padding:0 13px;outline:none}.brain-setup input:focus{border-color:var(--lime)}.brain-buttons{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.brain-primary,.brain-secondary{min-height:45px;padding:10px 18px;font:800 13px 'DM Sans',Arial,sans-serif;border-radius:3px;cursor:pointer}.brain-primary{background:var(--lime);border:1px solid var(--lime);color:var(--night)}.brain-primary:hover{background:#e0ff96}.brain-secondary{background:transparent;border:1px solid var(--lime);color:var(--lime)}.brain-secondary:hover{background:#c5f25b1b}.brain-primary:focus-visible,.brain-secondary:focus-visible,.brain-nav a:focus-visible,.memory-card:focus-visible,.focus-answers button:focus-visible,.aim-target:focus-visible,.reflex-pad:focus-visible,.draw-tools button:focus-visible{outline:3px solid #fff;outline-offset:3px}.brain-error{color:#ff9eac!important;min-height:18px;margin:10px 0 0}
.brain-arena{padding:18px}.arena-head{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:3px 4px 16px}.arena-head>div{display:grid;gap:1px}.arena-head small{font-size:11px;color:var(--muted)}.arena-head strong{font:700 31px 'Space Grotesk',Arial,sans-serif;color:var(--lime);line-height:1}.arena-time{text-align:right}.brain-stage{position:relative;border-radius:4px;min-height:430px;overflow:hidden}.stage-instruction{text-align:center;margin:0 auto 17px;max-width:440px;line-height:1.45;font-size:14px;font-weight:700}.game-feedback{min-height:24px;margin:15px 2px 3px;color:var(--cream);font-size:13px;font-weight:700}.arena-actions{display:flex;align-items:center;gap:15px;padding-top:10px}.arena-actions p{color:var(--muted);font-size:12px;margin:0}.brain-panel{padding:23px;margin-bottom:13px}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px}.panel-title h2{font-size:21px;margin:0}.panel-title strong,.panel-title span{color:var(--lime);font-size:12px}.brain-panel>p{margin:13px 0}.brain-panel .brain-secondary{width:100%}.room-feedback{word-break:break-word}.brain-leaderboard{list-style:none;margin:17px 0 12px;padding:0}.brain-leaderboard li{display:grid;grid-template-columns:24px minmax(0,1fr) auto;gap:9px;align-items:center;border-top:1px solid var(--line);padding:11px 1px;font-size:13px}.brain-leaderboard li.me{color:var(--lime)}.brain-leaderboard li span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brain-leaderboard li strong{font:700 18px 'Space Grotesk',Arial,sans-serif}.brain-help{background:transparent}.brain-help h2{font-size:20px;margin:0 0 10px}
.memory-stage{background:#f0d9b3;color:#243247;padding:22px}.memory-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;max-width:510px;margin:auto}.memory-card{height:104px;border:2px solid #343a55;background:#34445e;color:#fff;border-radius:10px;box-shadow:0 5px 0 #202d41;display:grid;place-items:center;font-size:46px;font-family:'Space Grotesk';cursor:pointer;transition:transform .16s,background-color .16s}.memory-card:not(:disabled):hover{transform:translateY(-2px)}.memory-card.revealed,.memory-card.matched{background:#fffaf0;color:#27374d}.memory-card.matched{border-color:#4b9b80;color:#35876b;box-shadow:0 3px 0 #3c8b70}.memory-card:disabled{cursor:default}
.memory-progress{text-align:center;color:#34445e;font-size:12px;font-weight:800;margin:0 auto 14px}
.result-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(135px,1fr));gap:9px;margin:14px 0 4px}.result-metrics>div{display:flex;flex-direction:column;gap:5px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#ffffff0b}.result-metrics span{color:var(--muted);font-size:11px;font-weight:700}.result-metrics strong{color:var(--lime);font:700 19px 'Space Grotesk',Arial,sans-serif}
.focus-stage{background:#e9edf4;color:#263652;padding:32px 26px;text-align:center}.focus-progress{font-size:13px;color:#62718e;font-weight:700}.focus-word{font:800 clamp(49px,10vw,105px) 'Space Grotesk',Arial,sans-serif;letter-spacing:-.07em;line-height:1.2;margin:23px auto 31px;min-height:122px;display:grid;place-items:center}.focus-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;max-width:460px;margin:auto}.focus-answers button{background:#fff;border:2px solid #c4ccdb;color:#25354e;padding:15px;font-size:15px;font-weight:800;cursor:pointer}.focus-answers button:hover{border-color:#4b9b80;background:#effaf2}
.aim-stage{background:#182a3b;color:#d6eef0;padding:21px}.aim-field{height:360px;position:relative;overflow:hidden;border:1px dashed #668397;background:radial-gradient(circle at 50% 50%,#284659 0,#1c3246 72%);cursor:crosshair;touch-action:manipulation}.aim-field::before,.aim-field::after{content:"";position:absolute;inset:50% 0 auto;border-top:1px solid #63819630;pointer-events:none}.aim-field::after{inset:0 50% auto;border-top:0;border-left:1px solid #63819630;height:100%}.aim-target{width:64px;height:64px;border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:7px solid #ffd8dc;background:radial-gradient(circle,#d73e66 0 23%,#ff849d 24% 46%,#fff0e9 47% 65%,#f6758f 66%);box-shadow:0 8px 17px #0006;cursor:crosshair;touch-action:manipulation}.aim-target:hover{filter:brightness(1.08)}
.reflex-stage{background:#d4cbe9;color:#322b4e;padding:22px}.reflex-pad{display:grid;place-items:center;width:100%;min-height:308px;border:4px solid #6b5b89;border-radius:13px;background:#695a83;color:#fff;font:800 clamp(28px,5vw,48px) 'Space Grotesk',Arial,sans-serif;letter-spacing:-.04em;cursor:pointer;touch-action:manipulation}.reflex-pad.waiting{background:#d76e77;border-color:#b94e63}.reflex-pad.ready{background:#6ec895;border-color:#269864;color:#173e31}.reflex-pad.early{background:#e3b557;border-color:#b78928;color:#493414}.reflex-progress{text-align:center;font-size:13px;font-weight:800;margin:15px 0 0}
.create-stage{background:#eeeaf6;color:#342e4e;padding:20px}.create-prompt{display:grid;gap:5px;margin-bottom:14px}.create-prompt small{color:#786e91;font-size:12px;font-weight:800}.create-prompt strong{font:700 clamp(21px,3vw,29px) 'Space Grotesk',Arial,sans-serif;letter-spacing:-.04em}.draw-tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:11px}.draw-tools button{min-height:34px;border:1px solid #c5bfd2;background:#fff;color:#453e5d;padding:5px 9px;font-size:11px;font-weight:700;cursor:pointer}.draw-tools .ink{padding:0;width:33px;height:33px;border-radius:50%;background:var(--ink-color);border:3px solid #fff;box-shadow:0 0 0 1px #b7afc9}.draw-tools .ink.active{box-shadow:0 0 0 3px #51486e}.draw-tools label{display:flex;align-items:center;gap:5px;margin:0 4px;font-size:11px;font-weight:700}.draw-tools input{accent-color:#6d5a96;width:75px}#drawCanvas{display:block;width:100%;height:auto;aspect-ratio:8/5;background:#fff;border:2px solid #b9b2c9;touch-action:none;cursor:crosshair}#completeIdea{margin-top:13px}.idea-gallery{list-style:none;padding:0;margin:14px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.idea-gallery li{background:#fff;border:1px solid #cbc3d6;padding:6px;min-width:0}.idea-gallery img{display:block;width:100%;aspect-ratio:8/5;object-fit:contain}.idea-gallery p{font-size:10px;line-height:1.3;min-height:28px;margin:6px 0;color:#5a5268}.idea-gallery a{font-size:11px;font-weight:800;color:#635395;text-decoration:underline}
@media(max-width:900px){.brain-layout{grid-template-columns:1fr}.brain-aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.brain-panel{margin:0}.brain-help{grid-column:1/-1}.brain-heading{padding-bottom:23px}}
@media(max-width:600px){.brain-page{padding:18px 0 65px}.brain-heading{align-items:flex-start}.brain-mark{width:64px;height:64px;font-size:43px;border-radius:17px}.brain-heading h1{font-size:47px}.brain-heading p:last-child{font-size:13px}.brain-setup{padding:22px}.brain-aside{display:block}.brain-panel{margin-bottom:12px}.brain-arena{padding:9px}.brain-stage{min-height:350px}.memory-stage{padding:15px}.memory-grid{gap:7px}.memory-card{height:76px;font-size:32px}.focus-stage{padding:20px 12px}.focus-word{min-height:100px;margin:8px auto 22px}.aim-stage{padding:13px}.aim-field{height:320px}.reflex-stage{padding:13px}.reflex-pad{min-height:280px}.create-stage{padding:12px}.idea-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:370px){.brain-mark{display:none}.memory-card{height:67px}.brain-nav a{padding:9px 11px}.brain-setup{padding:18px}}
@media(prefers-reduced-motion:reduce){.brain-nav a,.memory-card{transition:none}}
.memory-card:disabled{opacity:1;-webkit-text-fill-color:currentColor}.brain-primary:disabled{opacity:.55;cursor:default}.brain-primary:disabled:hover{background:var(--lime)}
@media(max-width:600px){.brain-nav{flex-wrap:wrap;overflow:visible}.brain-nav a{flex:1 1 auto;text-align:center}}
.idea-gallery p{font-size:12px}.idea-gallery a{font-size:12px}
body[data-game="plan"] .brain-mark{color:#f3bd78}
.plan-stage{background:#f1e9d9;color:#283744;padding:24px;display:flex;flex-direction:column}
.plan-progress{font-size:12px;font-weight:800;color:#7b6754;margin:10px 0}
.plan-question{font:700 clamp(24px,4vw,37px) 'Space Grotesk',Arial,sans-serif;letter-spacing:-.05em;line-height:1.15;max-width:600px;margin:10px 0 24px}
.plan-answers{display:grid;gap:9px}.plan-answers button{min-height:56px;text-align:left;padding:13px 17px;background:#fffaf0;border:1px solid #c9bbab;color:#283744;font:700 14px 'DM Sans',Arial,sans-serif;cursor:pointer;transition:background-color .15s,transform .15s}.plan-answers button:hover:not(:disabled){transform:translateX(3px);border-color:#625949}.plan-answers button.correct{background:#cfebcf;border-color:#418460}.plan-answers button.incorrect{background:#f5c9c3;border-color:#ba5b55}.plan-answers button:disabled{cursor:default}.plan-lesson{min-height:42px;margin:20px 0 0;font-size:13px;font-weight:700;line-height:1.45;color:#546047}
.plan-answers button:focus-visible,#ideaText:focus-visible{outline:3px solid #294f40;outline-offset:2px}
.idea-label{display:block;margin:13px 0 6px;font-size:12px;font-weight:800}.create-stage textarea{width:100%;resize:vertical;min-height:75px;padding:11px 13px;border:1px solid #b9b2c9;background:#fff;color:#342e4e;font:14px 'DM Sans',Arial,sans-serif}.idea-gallery .idea-note{font-size:12px;line-height:1.4;color:#342e4e;white-space:pre-wrap;overflow-wrap:anywhere;min-height:0}
@media(max-width:600px){.plan-stage{padding:18px}.plan-question{font-size:27px}.plan-answers button{min-height:60px}}
@media(prefers-reduced-motion:reduce){.plan-answers button{transition:none}}
.idea-gallery a+a{display:inline-block;margin-left:10px}
body[data-game="aim"].in-game .aim-field,body[data-game="aim"].in-game .aim-target{cursor:none}
.aim-target{width:48px;height:48px;border:0;background:transparent;box-shadow:none;display:grid;place-items:center;padding:0}
.aim-target::before,.aim-target::after{content:"";grid-area:1/1;border-radius:50%;pointer-events:none}
.aim-target::before{width:24px;height:24px;background:radial-gradient(circle at 32% 28%,#fff2f0 0 12%,#ff8a9f 25%,#e63d68 66%,#982446 100%);box-shadow:0 2px 8px #0008,0 0 13px #fb658688}
.aim-target::after{width:36px;height:36px;border:1px solid #ffdfe5a8}
.aim-target:active::before{transform:scale(.84)}
.aim-reticle{position:absolute;left:50%;top:50%;width:30px;height:30px;z-index:3;border:2px solid #d5fff1;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #12303b,0 0 12px #b5fff384;pointer-events:none}
.aim-reticle::after{content:"";position:absolute;left:50%;top:50%;width:4px;height:4px;border-radius:50%;background:#eafff3;transform:translate(-50%,-50%)}
@media(prefers-reduced-motion:reduce){.aim-target:active::before{transform:none}}