:root{font-family:Arial,Helvetica,sans-serif;color:#f2f1e9;background:#111b1b;--lime:#c0ee89;--muted:#a5b4b0;--border:#344340}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #e6c284;outline-offset:4px}header{max-width:1200px;margin:auto;padding:26px 30px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.brand{font-size:18px;letter-spacing:2px;font-weight:900;color:inherit;text-decoration:none;display:flex;align-items:center;gap:12px}.brand-icon{background:var(--lime);color:#14201d;padding:3px 9px;font-size:27px;border-radius:7px}.tag{font-size:9px;color:var(--muted);letter-spacing:1px;border-left:1px solid var(--border);padding-left:16px}main{max-width:1140px;margin:auto;padding:0 30px}.intro{display:grid;grid-template-columns:1fr 1fr;align-items:center;padding:42px 0 32px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--lime);margin:0 0 15px}h1{font-size:clamp(36px,5vw,60px);letter-spacing:-2px;line-height:1.05;margin:0 0 18px}h1 span{color:var(--lime)}.intro-text,.muted{color:var(--muted);font-size:14px;line-height:1.7}.landscape{position:relative}.landscape svg{width:100%;display:block}.landscape span{position:absolute;right:0;bottom:10px;letter-spacing:3px;font-size:10px;color:var(--muted)}.workspace{display:grid;grid-template-columns:260px 1fr;border:1px solid var(--border);border-radius:17px;overflow:hidden;background:#1b2826;min-height:500px}aside{padding:29px 25px;background:#172220;border-right:1px solid var(--border)}h2{font-size:22px;margin:0 0 10px;letter-spacing:-.5px}aside h2{display:flex;justify-content:space-between}aside h2 span{color:#658075;font-size:15px}aside .muted{font-size:12px}ol{padding:10px 0;list-style:none;margin:20px 0}ol li{display:flex;gap:12px;align-items:center;margin-bottom:24px;color:#91a29b;font-size:13px;line-height:1.4}ol li .step{display:grid;place-items:center;border:1px solid #52635a;border-radius:50%;width:27px;height:27px;flex:none;font-size:11px}ol li.active{color:var(--lime);font-weight:700}ol li.active .step,ol li.done .step{background:var(--lime);border-color:var(--lime);color:#15231c}.aside-bottom{display:flex;gap:10px;align-items:center;font-size:11px;color:var(--muted);line-height:1.6}.dot{width:7px;height:7px;background:var(--lime);border-radius:50%;flex:none}.lesson{padding:30px 36px}.lesson-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;color:var(--muted);font-size:11px;letter-spacing:1px}.badge{padding:6px 9px;border:1px solid #4a5b4a;border-radius:5px;color:var(--lime);font-size:10px}.lesson h2{font-size:27px}.description{color:#c1ccc5;line-height:1.6;font-size:15px;max-width:580px}.tracks{background:#14201e;border:1px solid #30443b;border-radius:10px;padding:20px;margin:22px 0}.track-label{display:flex;justify-content:space-between;color:#b9c8bf;font-size:12px;margin-bottom:9px}.track{height:40px;display:flex;border:1px solid #627065;border-radius:5px;overflow:hidden;margin-bottom:20px;background:#26362f}.track:last-child{margin-bottom:0}.cell{flex:1;min-width:0;border-right:1px solid #708173;display:grid;place-items:center;font-size:10px;color:#183022}.cell:last-child{border:0}.cell.filled{background:var(--lime)}.track.orange .filled{background:#e5b37a}.answers{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.choice,.secondary,.practice-buttons button{border:1px solid #526658;background:transparent;color:#edf2e9;padding:12px 18px;border-radius:7px}.choice:hover,.secondary:hover,.practice-buttons button:hover{background:#304332;border-color:var(--lime)}.primary{border:0;border-radius:7px;background:var(--lime);color:#1b2b1c;padding:13px 21px;font-weight:700}.primary:hover{background:#d4ffa6}.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:24px}.text-button{border:0;background:transparent;color:#bdcbc1;text-decoration:underline;text-underline-offset:4px;padding:7px 0;font-size:12px}.feedback{padding:13px 16px;border-radius:7px;margin-top:16px;font-size:14px;line-height:1.6;background:#304333;color:#dcf5c7}.feedback.retry{background:#40372a;color:#f4d5a4}.hint{padding:14px;border-left:2px solid #dcb685;color:#e2cfad;font-size:14px;line-height:1.7;margin-top:16px}.fraction{display:inline-flex;flex-direction:column;vertical-align:middle;align-items:center;font-size:24px;line-height:1.3;margin:0 9px}.fraction span:first-child{border-bottom:2px solid currentColor;min-width:25px;text-align:center}.equation{font-size:25px;display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:25px 0}.fraction input{width:67px;text-align:center;border:1px solid #758972;border-radius:5px;padding:5px;background:#101d17;color:#fff;font-size:22px}.fraction input:first-child{margin-bottom:5px}.fraction input:last-child{margin-top:5px}.field-label{font-size:12px;display:block;color:var(--muted);margin-bottom:9px}.practice{display:flex;gap:30px;justify-content:space-between;align-items:center;padding:33px 0}.practice h2{font-size:21px}.practice p:not(.eyebrow){font-size:13px;color:var(--muted)}.practice-buttons{max-width:450px;display:flex;flex-wrap:wrap;gap:8px}.practice-buttons button{font-size:12px;padding:10px 12px}footer{border-top:1px solid var(--border);padding:20px 0 30px;display:flex;justify-content:space-between;gap:20px;align-items:center;color:#8ea197;font-size:10px;letter-spacing:1px}.finish{font-size:45px;color:var(--lime);margin:12px 0}.progress{height:4px;border-radius:5px;background:#35473c;margin-top:20px;overflow:hidden}.progress div{height:100%;background:var(--lime)}@media(max-width:760px){header{padding:20px}.tag{display:none}main{padding:0 18px}.intro{grid-template-columns:1fr;padding:30px 0}.landscape{display:none}.workspace{grid-template-columns:1fr}aside{padding:20px;border-right:0;border-bottom:1px solid var(--border)}aside .muted,.aside-bottom,aside .eyebrow{display:none}ol{display:flex;justify-content:space-between;margin:15px 0 0;padding:0}ol li{margin:0;font-size:0}ol li .step{font-size:12px}.lesson{padding:25px 20px}.lesson h2{font-size:24px}.practice{align-items:start;flex-direction:column;gap:12px}.track{height:37px}.cell{font-size:8px}footer{align-items:start;flex-direction:column}}
/* Session edition */
.ride-hub{display:grid;grid-template-columns:1fr 260px;gap:30px;padding:28px 30px;border:1px solid #5d7851;border-radius:14px;background:linear-gradient(120deg,#2e4430,#1a2a25 70%);position:relative;overflow:hidden}.ride-hub:after{content:'↗';position:absolute;right:220px;top:-48px;font-size:230px;color:#c0ee8909;pointer-events:none}.session-stats{border-left:1px solid #4a6447;padding-left:28px;display:flex;flex-direction:column;justify-content:center}.session-stats strong{font-size:42px;color:var(--lime)}.session-stats>span{font-size:11px;color:var(--muted)}#ride-dots{font-size:26px;letter-spacing:6px;color:var(--lime);margin-top:12px}#ride-status{font-size:12px;line-height:1.6;color:#d0dec9}.rotation-lab{display:grid;grid-template-columns:1fr 230px;gap:35px;padding:30px;margin:20px 0;background:#1a2826;border:1px solid var(--border);border-radius:14px}.rotation-lab label{font-size:13px;display:flex;justify-content:space-between;gap:10px;margin-top:25px}.rotation-lab strong{color:var(--lime)}input[type=range]{width:100%;accent-color:var(--lime);margin:20px 0 10px;cursor:pointer;min-height:24px}.rotation-ticks{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.rotation-display svg{width:170px;display:block;margin:0 auto 8px}.rotation-display>span{font-size:10px;color:var(--muted);display:block;text-align:center}.training-settings{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:26px 0 16px;font-size:12px;color:var(--muted)}.training-settings label{color:#d8e4d3}select{font:inherit;color:#ebf4e8;background:#263a2e;border:1px solid #56724a;padding:10px;border-radius:6px;margin-left:10px}.training-settings>span{font-size:11px}.trickbag{padding:30px 0;border-top:1px solid var(--border)}.trick-cards{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin:25px 0}.trick-card{display:flex;flex-direction:column;align-items:start;gap:10px;text-align:left;padding:15px 12px;border:1px solid #3b4c40;border-radius:9px;background:#1a2823;color:#a5b4a5}.trick-card:disabled{cursor:default}.trick-card.unlocked{border-color:#91b565;color:#e4f3d8;background:linear-gradient(150deg,#344c2d,#1b2a25)}.trick-card.unlocked:hover{transform:translateY(-3px);border-color:var(--lime)}.trick-number{font-size:9px;letter-spacing:1px}.trick-card>span:last-child{font-size:10px;line-height:1.5}.mini-bike{width:100%;opacity:.3}.unlocked .mini-bike{opacity:1}.mini-bike svg{width:100%;height:65px}.bike-frame,.rider{stroke:currentColor;fill:none;stroke-width:4;stroke-linejoin:round;stroke-linecap:round}.rider-head{fill:currentColor;stroke-width:2}.trick-preview:empty{display:none}.trick-preview{display:flex;align-items:center;gap:30px;border:1px solid var(--border);border-radius:12px;background:#15241f;padding:20px}.trick-preview h3{font-size:27px;margin:10px 0}.trick-preview p:not(.eyebrow){font-size:13px;color:var(--muted)}.trick-stage{height:180px;width:340px;max-width:100%;position:relative;overflow:hidden;border-bottom:2px solid #719352;flex:none}.flying-bike{width:120px;color:var(--lime);position:absolute;left:100px;top:40px;animation:jump var(--trick-duration,1.8s) ease-in-out both}.flying-bike svg{display:block;width:100%;animation:none}.spin .flying-bike svg{animation:style-spin 1.8s ease-in-out both}.flip .flying-bike svg{animation:style-flip 1.8s ease-in-out both}.double .flying-bike svg{animation:style-double 1.8s ease-in-out both}.whip .bike-frame{transform-origin:100px 65px;animation:style-whip 1.8s ease-in-out both}.ramp{position:absolute;bottom:-3px;width:100px;height:45px;background:#4d653e;clip-path:polygon(0 100%,100% 0,100% 100%)}.ramp.left{left:0}.ramp.right{right:0;transform:scaleX(-1)}@keyframes jump{0%{transform:translate(-180px,85px)}40%,55%{transform:translate(0,-20px)}100%{transform:translate(230px,85px)}}@keyframes style-spin{0%,25%{transform:rotateY(0)}75%,100%{transform:rotateY(360deg)}}@keyframes style-flip{0%,25%{transform:rotate(0)}75%,100%{transform:rotate(-360deg)}}@keyframes style-double{0%,20%{transform:rotateY(0)}80%,100%{transform:rotateY(720deg)}}@keyframes style-whip{0%,20%{transform:rotateY(0)}80%,100%{transform:rotateY(360deg)}}.rotation-task{display:flex;align-items:center;gap:25px;margin:20px 0;background:#14231e;border-radius:10px;padding:20px}.rotation-task p{color:var(--muted);font-size:13px;line-height:1.8}.rotation-disc{height:110px;width:110px;flex:none;border-radius:50%;background:conic-gradient(var(--lime) var(--turn),#354b3e 0);display:grid;place-items:center}.rotation-disc>span{width:80px;height:80px;background:#182b22;border-radius:50%;display:grid;align-content:center;text-align:center;font-size:23px}.rotation-disc small{display:block;font-size:12px;color:var(--muted)}.unit{font-size:14px;color:var(--muted)}.visual-support:not(:empty){background:#14201e;border:1px solid #3e5743;border-radius:10px;padding:18px;margin-top:20px}.visual-support p{font-size:13px;line-height:1.7;color:#cbdbc3}.area-grid{display:grid;max-width:330px;height:165px;gap:2px;background:#15251d}.area-grid span{background:#344b3c}.area-grid .selected{background:#917d56}.area-grid .overlap{background:var(--lime)}.division-strip{display:flex;height:45px;border:1px solid #6a8855}.division-strip span{flex:1;border-right:1px solid #34482b}.equation{font-size:23px}.equation .fraction{font-size:23px;margin:0 6px}.trick-card{transition:transform .15s}.practice-buttons [aria-pressed=true]{background:#405b34;border-color:var(--lime)}@media(max-width:900px){.trick-cards{grid-template-columns:repeat(3,1fr)}.ride-hub{grid-template-columns:1fr 220px}.trick-stage{width:260px}.trick-preview{gap:15px}}@media(max-width:600px){.ride-hub,.rotation-lab{grid-template-columns:1fr;padding:22px;gap:20px}.session-stats{border-left:0;border-top:1px solid #4a6447;padding:15px 0 0}.session-stats strong{font-size:30px}.rotation-display svg{width:125px}.training-settings{align-items:start;flex-direction:column}.training-settings>span{display:none}.trick-cards{grid-template-columns:repeat(2,1fr)}.trick-preview{flex-direction:column;align-items:start}.trick-stage{width:100%}.rotation-lab label{flex-wrap:wrap}.rotation-task{gap:15px;padding:15px}.rotation-disc{width:90px;height:90px}.rotation-disc>span{width:65px;height:65px}.equation .fraction{margin:0 3px}.equation{gap:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.flying-bike{transform:none}}
.landing-replay{margin-top:20px;padding:12px 15px;background:linear-gradient(110deg,#263e29,#14231f);border:1px solid #4a673e;border-radius:10px;display:flex;align-items:center;gap:15px}.landing-replay .trick-stage{height:125px;width:240px;flex:none}.landing-replay .flying-bike{left:60px;top:10px;width:95px}.landing-replay>span{font-size:11px;color:var(--lime);letter-spacing:1px;line-height:1.8}@media(max-width:600px){.landing-replay{flex-direction:column}.landing-replay .trick-stage{width:100%}}
/* Trail selection and finish flow */
[hidden]{display:none!important}#trail-picker{padding-top:12px}.trail-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:25px 0 20px}.trail-card{color:#d8e4de;border:1px solid #405148;border-radius:12px;background:#1a2925;padding:20px 14px;display:flex;flex-direction:column;align-items:start;gap:12px;text-align:left;min-height:180px}.trail-card:hover{background:#253a30}.trail-card.selected{border:2px solid var(--trail-color);padding:19px 13px;background:linear-gradient(160deg,#304432,#1b2925)}.trail-symbol{color:var(--trail-color);font-size:30px;line-height:1}.black-symbol{color:#080c0b;text-shadow:1px 0 #b1b8b3,-1px 0 #b1b8b3,0 1px #b1b8b3,0 -1px #b1b8b3}.trail-card strong{font-size:17px}.trail-card>span:not(.trail-symbol){font-size:12px;color:#b6c8bc}.trail-card small{margin-top:auto;font-size:10px;color:var(--trail-color);line-height:1.5}#trail-workspace{margin-top:25px}.bonus-heading{padding:28px 0 0}#trail-bonus{margin-top:25px;border-top:1px solid var(--border)}.lesson .progress{margin-top:25px}@media(max-width:760px){.trail-cards{grid-template-columns:repeat(3,1fr)}.trail-card{min-height:170px}}@media(max-width:450px){.trail-cards{grid-template-columns:repeat(2,1fr)}.trail-card:last-child{grid-column:1/-1;min-height:130px}.trail-card{padding:16px 12px}.trail-card.selected{padding:15px 11px}}
/* One task, its picture, and optional help. */
.task-goal{font-size:16px;line-height:1.65;color:#e3eedc;margin:18px 0}.learning-help{margin:16px 0;padding:13px 16px;border:1px solid #3d5140;border-radius:7px;color:#c1d2bc;font-size:14px;line-height:1.7}.learning-help summary{cursor:pointer;color:var(--lime)}.learning-help p{margin:12px 0 0}.answer-meaning strong{font-size:13px;color:var(--lime)}.answer-meaning p{font-size:14px;line-height:1.7;margin:8px 0 0;color:#d5e2ce}.answer-instruction,.model-note{font-size:12px;line-height:1.7;color:#b8cbb2}.answer-meaning{padding:17px 0}.distance-model{padding:18px;background:#12231d;border:1px solid #37523c;border-radius:10px;margin-top:20px}.distance-model h3{font-size:16px;line-height:1.6;margin:0 0 15px}.distance-model p{font-size:13px;line-height:1.7;color:#c2d1bc}.distance-labels{display:flex;justify-content:space-between;gap:15px;font-size:12px;line-height:1.6;color:#c6d4bd;margin:12px 0}.journey-bar{display:flex;height:45px;border-radius:5px;overflow:hidden;border:1px solid #6a8155}.journey-bar>span{min-width:0;display:flex;justify-content:center;align-items:center;font-size:11px;white-space:nowrap;color:#182417;overflow:hidden}.journey-bar .cycled{background:#e5b37a;border-right:2px solid #183023}.journey-bar .remaining{background:var(--lime)}button:disabled{opacity:.45;cursor:default}.trick-card:disabled{opacity:1}@media(max-width:600px){.task-goal{font-size:15px}.distance-labels{font-size:11px}.distance-model{padding:14px}}

/* Each trick moves the body parts that actually perform it. */
.released-arms{opacity:0}.hand{fill:currentColor}.table,.hands{--trick-duration:2.8s}
.table .flying-bike .bike-frame{transform-origin:100px 65px;animation:tabletop-bike var(--trick-duration) ease-in-out both}
.table .flying-bike .pedalling-legs{transform-origin:95px 45px;animation:tabletop-legs var(--trick-duration) ease-in-out both}
.hands .flying-bike .gripping-arms{animation:release-grip var(--trick-duration) linear both}
.hands .flying-bike .released-arms{stroke:#f1bd88;animation:extend-arms var(--trick-duration) linear both}
@keyframes tabletop-bike{0%,22%,82%,100%{transform:translate(0,0) rotate(0) skewX(0) scaleY(1)}40%,63%{transform:translate(0,-8px) rotate(-18deg) skewX(-25deg) scaleY(.25)}}
@keyframes tabletop-legs{0%,22%,82%,100%{transform:scaleY(1)}40%,63%{transform:scaleY(.65)}}
@keyframes release-grip{0%,26%,78%,100%{opacity:1}34%,70%{opacity:0}}
@keyframes extend-arms{0%,26%,78%,100%{opacity:0}34%,70%{opacity:1}}
.trick-preview{flex-wrap:wrap}.trick-preview>.secondary{flex:none}
@media(prefers-reduced-motion:reduce){.table .flying-bike .bike-frame{transform-origin:100px 65px;transform:translate(0,-8px) rotate(-18deg) skewX(-25deg) scaleY(.25)}.hands .flying-bike .gripping-arms{opacity:0}.hands .flying-bike .released-arms{opacity:1}}
.app-version{flex-shrink:0;margin-left:16px;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.5px}

/* Keep navigation deterministic and feedback beside the animation. */
#lesson,#answer-result{scroll-margin-top:16px}
#answer-result:focus{outline:none}
#answer-result .landing-replay{margin-top:12px}
.footer-actions{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center}#reset-progress{color:#c5aaa1}.reset-status{color:var(--lime);font-size:13px;line-height:1.6;margin:0 0 24px}.reset-status:empty{display:none}

/* More lines within each bikepark grade, plus a persistent bonus entrance. */
.route-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0 24px}.route-card{padding:17px;text-align:left;display:flex;flex-direction:column;gap:9px;border:1px solid #44594b;border-radius:10px;background:#1a2925;color:#e1ebda}.route-card.selected{border-color:var(--lime);background:#2b402d}.route-card>span{font-size:10px;letter-spacing:1px;color:var(--lime)}.route-card strong{font-size:18px}.route-card small{font-size:12px;line-height:1.6;color:#b4c9b2}.lab-entry{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #4d6554;border-radius:12px;padding:20px 24px;margin:18px 0 24px;background:#1b2c25}.lab-entry p{margin:0}.lab-entry .eyebrow{margin-bottom:8px}.lab-entry button{flex:none}.trick-cards{grid-template-columns:repeat(4,1fr)}#trail-bonus{scroll-margin-top:16px}
.heel-legs{opacity:0}.heel-foot{fill:#f1bd88;stroke:#f1bd88}.heel{--trick-duration:3.2s}.doubleflip{--trick-duration:3.4s}
.heel .flying-bike .pedalling-legs{animation:release-grip var(--trick-duration) linear both}
.heel .flying-bike .heel-legs{stroke:#f1bd88;animation:heel-click var(--trick-duration) ease-in-out both;transform-origin:82px 44px}
.doubleflip .flying-bike svg{animation:double-backflip var(--trick-duration) ease-in-out both}
@keyframes heel-click{0%,26%,78%,100%{opacity:0;transform:scaleY(.3)}37%,65%{opacity:1;transform:scaleY(1)}}
@keyframes double-backflip{0%,20%{transform:rotate(0)}80%,100%{transform:rotate(-720deg)}}
@media(max-width:760px){.route-cards{grid-template-columns:1fr}.route-card{padding:15px}.lab-entry{flex-direction:column;align-items:start;padding:20px}.trick-cards{grid-template-columns:repeat(2,1fr)}}
@media(prefers-reduced-motion:reduce){.heel .flying-bike .pedalling-legs{opacity:0}.heel .flying-bike .heel-legs{opacity:1;transform:none}}
/* Tricklab flashcards */
.flash-decks{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0}.flash-deck{display:flex;flex-direction:column;align-items:start;text-align:left;gap:10px;background:#1a2925;border:1px solid #435646;border-radius:10px;padding:18px;color:#e4eedc}.flash-deck.selected{border-color:var(--lime);background:linear-gradient(145deg,#30462d,#1d3027)}.flash-deck>span:first-child{color:var(--lime);font-size:9px;letter-spacing:1px;line-height:1.5}.flash-deck strong{font-size:18px;line-height:1.25}.flash-deck small{color:#b8cbb1;font-size:12px;line-height:1.5}.skill-dots,.flash-set-dots{display:flex;gap:7px}.skill-dots i{height:5px;width:28px;background:#4b5d49;border-radius:3px}.skill-dots i.filled,.flash-set-dots i.filled{background:var(--lime)}.flash-setup{border:1px solid #4c664b;border-radius:12px;padding:24px;background:#1b2e24}.flash-setup h3{margin:0}.flash-lengths{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.flash-lengths [aria-pressed=true]{border-color:var(--lime);background:#385331}.rotation-extra{margin:25px 0;color:var(--muted);font-size:13px}.rotation-extra summary{cursor:pointer;text-decoration:underline;text-underline-offset:4px}.lab-navigation{padding:0 0 25px}.flash-session{max-width:730px;margin:24px auto;scroll-margin-top:16px}.flash-session-top{display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#bccdb6;line-height:1.6}.flash-set-dots{margin:14px 0 20px}.flash-set-dots i{height:6px;flex:1;background:#354d3b;border-radius:4px}.flash-card{position:relative;background:linear-gradient(145deg,#23382c,#182820);border:1px solid #526d49;border-radius:17px;padding:30px}.flash-card h2{font-size:26px;line-height:1.3;letter-spacing:-.6px}.flash-expression{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:14px;font-size:32px;min-height:145px;margin:15px 0}.flash-expression .fraction{font-size:34px;margin:0 6px}.flash-and{font-size:18px;color:var(--muted)}.flash-card input{width:75px;padding:8px;text-align:center;background:#101e16;border:1px solid #7b946f;border-radius:6px;color:#f0f6e8;font:inherit;font-size:25px}.flash-card input[readonly]{background:#2a3c2b;color:#d7e5cb;border-style:dashed}.flash-fraction input{margin:3px 0}.flash-card .flash-fraction input:first-child{border-bottom:2px solid #c0ee89}.flash-card form>.primary{display:block;width:100%;margin-top:18px}.flash-support{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:15px}.flash-picture{border-top:1px solid #486042;margin-top:18px;padding-top:15px}.flash-picture p{font-size:14px;line-height:1.7;color:#c7d8bd}.flash-retry{color:#edc797;line-height:1.6;font-size:14px}.flash-retry:empty{display:none}#flash-answer{scroll-margin-top:16px}#flash-answer:focus{outline:none}.flash-result{margin-top:18px;padding:17px;border:1px solid #6b8a53;border-radius:9px;background:#2c442b}.flash-result strong{color:var(--lime);font-size:19px}.flash-result p{color:#e1edd6;font-size:14px;line-height:1.7;margin:10px 0 0}.flash-level-up{border-top:1px solid #648653;padding-top:12px;font-weight:700}.flash-checkpoint h3{margin:20px 0 10px;font-size:23px}.flash-checkpoint p{font-size:14px;color:#c2d3b7;line-height:1.7}.flash-summary>p{line-height:1.7;color:#c7d8bd}.flash-summary-count{font-size:65px;color:var(--lime);margin:20px 0}.flash-summary-count span{font-size:14px;margin-left:15px;color:var(--muted)}.flash-den-label{display:flex;justify-content:center;align-items:center;gap:15px;font-size:14px;color:#d4e3c9}.flash-common-inputs{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:20px 0}.flash-common-inputs label{display:flex;flex-direction:column;align-items:center;gap:10px;color:#c3d4b8;font-size:13px}#flash-stop{margin-top:17px}.flash-card .landing-replay{margin-top:15px}.flash-card .actions{gap:14px}
@media(max-width:850px){.flash-decks{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.flash-card{padding:22px 17px}.flash-card h2{font-size:23px}.flash-expression{font-size:27px;gap:6px;min-height:120px}.flash-expression .fraction{font-size:28px;margin:0 3px}.flash-card input{width:62px;font-size:23px}.flash-session-top{font-size:11px}.flash-deck{padding:15px;gap:9px}.flash-deck strong{font-size:16px}.flash-setup{padding:20px}.flash-lengths button{flex:1;min-width:130px;font-size:12px}.flash-support{gap:5px}.flash-support .text-button{font-size:11px}.flash-result{padding:14px}.flash-session{margin-top:20px}}