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var(--tw-backdrop-sepia,)}.transition-\[color\,box-shadow\]{transition-property:color,box-shadow;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-all{transition-property:all;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}.outline-none{--tw-outline-style:none;outline-style:none}:where(.divide-x-reverse>:not(:last-child)){--tw-divide-x-reverse:1}.ring-inset{--tw-ring-inset:inset}.zoom-in{--tw-enter-scale:0}.zoom-out{--tw-exit-scale:0}.selection\:bg-primary ::selection{background-color:var(--primary)}.selection\:bg-primary::selection{background-color:var(--primary)}.selection\:text-primary-foreground ::selection{color:var(--primary-foreground)}.selection\:text-primary-foreground::selection{color:var(--primary-foreground)}.file\:inline-flex::file-selector-button{display:inline-flex}.file\:h-7::file-selector-button{height:calc(var(--spacing) * 7)}.file\:border-0::file-selector-button{border-style:var(--tw-border-style);border-width:0}.file\:bg-transparent::file-selector-button{background-color:#0000}.file\:text-sm::file-selector-button{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.file\:font-medium::file-selector-button{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.file\:text-foreground::file-selector-button{color:var(--foreground)}.placeholder\:text-muted-foreground::placeholder{color:var(--muted-foreground)}@media (hover:hover){.hover\:bg-accent:hover{background-color:var(--accent)}.hover\:bg-destructive\/90:hover{background-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.hover\:bg-destructive\/90:hover{background-color:color-mix(in oklab, var(--destructive) 90%, transparent)}}.hover\:bg-primary\/90:hover{background-color:var(--primary)}@supports (color:color-mix(in lab, red, red)){.hover\:bg-primary\/90:hover{background-color:color-mix(in oklab, var(--primary) 90%, transparent)}}.hover\:bg-secondary\/80:hover{background-color:var(--secondary)}@supports (color:color-mix(in lab, red, red)){.hover\:bg-secondary\/80:hover{background-color:color-mix(in oklab, var(--secondary) 80%, transparent)}}.hover\:text-accent-foreground:hover{color:var(--accent-foreground)}.hover\:underline:hover{text-decoration-line:underline}}.focus-visible\:border-ring:focus-visible{border-color:var(--ring)}.focus-visible\:ring-\[3px\]:focus-visible{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(3px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.focus-visible\:ring-destructive\/20:focus-visible{--tw-ring-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.focus-visible\:ring-destructive\/20:focus-visible{--tw-ring-color:color-mix(in oklab, var(--destructive) 20%, transparent)}}.focus-visible\:ring-ring\/50:focus-visible{--tw-ring-color:var(--ring)}@supports (color:color-mix(in lab, red, red)){.focus-visible\:ring-ring\/50:focus-visible{--tw-ring-color:color-mix(in oklab, var(--ring) 50%, transparent)}}.disabled\:pointer-events-none:disabled{pointer-events:none}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:opacity-50:disabled{opacity:.5}.has-data-\[slot\=card-action\]\:grid-cols-\[1fr_auto\]:has([data-slot=card-action]){grid-template-columns:1fr auto}.has-\[\>svg\]\:px-1\.5:has(>svg){padding-inline:calc(var(--spacing) * 1.5)}.has-\[\>svg\]\:px-2\.5:has(>svg){padding-inline:calc(var(--spacing) * 2.5)}.has-\[\>svg\]\:px-3:has(>svg){padding-inline:calc(var(--spacing) * 3)}.has-\[\>svg\]\:px-4:has(>svg){padding-inline:calc(var(--spacing) * 4)}.aria-invalid\:border-destructive[aria-invalid=true]{border-color:var(--destructive)}.aria-invalid\:ring-destructive\/20[aria-invalid=true]{--tw-ring-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.aria-invalid\:ring-destructive\/20[aria-invalid=true]{--tw-ring-color:color-mix(in oklab, var(--destructive) 20%, transparent)}}@media (min-width:48rem){.md\:text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}}@media (prefers-color-scheme:dark){.dark\:border-input{border-color:var(--input)}.dark\:bg-destructive\/60{background-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.dark\:bg-destructive\/60{background-color:color-mix(in oklab, var(--destructive) 60%, transparent)}}.dark\:bg-input\/30{background-color:var(--input)}@supports (color:color-mix(in lab, red, red)){.dark\:bg-input\/30{background-color:color-mix(in oklab, var(--input) 30%, transparent)}}@media (hover:hover){.dark\:hover\:bg-accent\/50:hover{background-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.dark\:hover\:bg-accent\/50:hover{background-color:color-mix(in oklab, var(--accent) 50%, transparent)}}.dark\:hover\:bg-input\/50:hover{background-color:var(--input)}@supports (color:color-mix(in lab, red, red)){.dark\:hover\:bg-input\/50:hover{background-color:color-mix(in oklab, var(--input) 50%, transparent)}}}.dark\:focus-visible\:ring-destructive\/40:focus-visible{--tw-ring-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.dark\:focus-visible\:ring-destructive\/40:focus-visible{--tw-ring-color:color-mix(in oklab, var(--destructive) 40%, transparent)}}.dark\:aria-invalid\:ring-destructive\/40[aria-invalid=true]{--tw-ring-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){.dark\:aria-invalid\:ring-destructive\/40[aria-invalid=true]{--tw-ring-color:color-mix(in oklab, var(--destructive) 40%, transparent)}}}.\[\&_svg\]\:pointer-events-none svg{pointer-events:none}.\[\&_svg\]\:shrink-0 svg{flex-shrink:0}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-3 svg:not([class*=size-]){width:calc(var(--spacing) * 3);height:calc(var(--spacing) * 3)}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-4 svg:not([class*=size-]){width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}.\[\.border-b\]\:pb-6.border-b{padding-bottom:calc(var(--spacing) * 6)}.\[\.border-t\]\:pt-6.border-t{padding-top:calc(var(--spacing) * 6)}}@property --tw-animation-delay{syntax:"*";inherits:false;initial-value:0s}@property --tw-animation-direction{syntax:"*";inherits:false;initial-value:normal}@property --tw-animation-duration{syntax:"*";inherits:false}@property --tw-animation-fill-mode{syntax:"*";inherits:false;initial-value:none}@property --tw-animation-iteration-count{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-translate-y{syntax:"*";inherits:false;initial-value:0}@property --scroll-fade-t{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-b{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-s{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-e{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-mask{syntax:"*";inherits:false}@property --shimmer-angle{syntax:"<angle>";inherits:true;initial-value:20deg}@property --shimmer-image{syntax:"*";inherits:false}@property --shimmer-text-fill{syntax:"*";inherits:false}@media (prefers-reduced-motion:reduce){.shimmer{-webkit-text-fill-color:currentColor;background-image:none;animation:none}}:root{--background:#f7faf5;--foreground:#153f38;--card:#fff;--card-foreground:#153f38;--popover:#fff;--popover-foreground:#153f38;--primary:#0e7465;--primary-foreground:#fff;--secondary:#e7f2ee;--secondary-foreground:#173d36;--muted:#edf2ef;--muted-foreground:#667873;--accent:#f2b84b;--accent-foreground:#3a2a0c;--destructive:#c43c35;--border:#cbd9d4;--input:#cbd9d4;--ring:#0e7465;--radius:.9rem}@media (max-width:800px){.stage-menu-screen .stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:560px){.stage-menu-screen .stage-grid{grid-template-columns:1fr}}.stage-door-screen,.stage-practice-screen{background:linear-gradient(#eff8ff 0%,#fffaf0 100%);min-height:100vh;padding:28px clamp(16px,4vw,48px) 64px}.stage-door-card,.practice-result-card{border:3px solid #173a68;border-radius:28px;width:min(760px,100%);margin:32px auto;overflow:hidden;box-shadow:0 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auto;align-items:center;gap:14px;width:100%;padding:18px;display:grid}.stage-door-option:hover{border-color:#2474c6;transform:translateY(-1px)}.stage-door-option>span:first-child{color:#173a68;background:#e8f3ff;border-radius:15px;place-items:center;width:48px;height:48px;font-weight:900;display:grid}.stage-door-option strong,.stage-door-option small{display:block}.stage-door-option strong{color:#173a68;font-size:1.08rem}.stage-door-option small{color:#516579;margin-top:4px}.stage-door-option.skip{background:#fff9e8;border-color:#efb840}.stage-door-note{color:#516579;text-align:center;margin:18px 0 0;font-size:.9rem}.practice-header{grid-template-columns:auto 1fr auto;align-items:center;gap:18px;width:min(900px,100%);margin:0 auto 18px;display:grid}.practice-header small{color:#657990;letter-spacing:.08em;font-weight:900}.practice-header h1{color:#173a68;margin:2px 0 0;font-size:clamp(1.35rem,4vw,2rem)}.practice-level{color:#17613a;background:#dff7e8;border-radius:999px;padding:8px 14px;font-weight:900}.practice-level.dasar{color:#7b5100;background:#fff0c9}.practice-level.standar{color:#63359b;background:#f0e6ff}.practice-progress-copy,.stage-practice-screen>[data-slot=progress]{width:min(900px,100%);margin-inline:auto}.practice-progress-copy{color:#516579;justify-content:space-between;margin-bottom:8px;display:flex}.practice-problem-card,.practice-work-card{border-radius:24px;width:min(900px,100%);margin:18px auto 0}.practice-problem-card{border:3px solid #173a68}.practice-problem-card>div,.practice-work-card>div{padding:clamp(20px,4vw,34px)}.practice-problem-card small{color:#e14d4d;letter-spacing:.08em;font-weight:900}.practice-problem-card p{margin:12px 0;font-size:clamp(1.08rem,2.8vw,1.35rem);line-height:1.75}.practice-problem-card h2{color:#173a68;margin:0;font-size:clamp(1.25rem,3.2vw,1.65rem)}.practice-step-title{align-items:center;gap:14px;display:flex}.practice-step-title>span{color:#fff;background:#173a68;border-radius:14px;place-items:center;width:46px;height:46px;font-weight:900;display:grid}.practice-step-title small{color:#e14d4d;font-weight:900}.practice-step-title h2{margin:2px 0 0;font-size:clamp(1.15rem,3vw,1.5rem)}.practice-instruction{color:#516579}.practice-number-choices,.practice-unit-choices{flex-wrap:wrap;gap:12px;margin:22px 0;display:flex}.practice-number-choices button,.practice-unit-choices button{background:#fff;border:2px solid #b9cbe0;border-radius:16px;min-width:74px;min-height:52px;padding:10px 18px;font-size:1.15rem;font-weight:900}.practice-number-choices button.selected,.practice-unit-choices button.selected{color:#173a68;background:#e8f3ff;border-color:#2474c6}.practice-number-choices svg{width:18px;margin-right:6px;display:inline}.practice-feedback{border-radius:14px;align-items:center;gap:10px;padding:14px 16px;font-weight:800;display:flex}.practice-feedback.right{color:#17613a;background:#e0f7e8}.practice-feedback.wrong{color:#a32f2f;background:#fff0ee}.practice-feedback svg{flex:none;width:21px}.practice-actions{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.practice-actions.single{justify-content:center}.practice-equation-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin:28px 0 12px;font-size:1.5rem;display:flex}.practice-equation-row strong{text-align:center;min-width:52px}.practice-equation-row select,.practice-equation-row input{text-align:center;border:2px solid #173a68;border-radius:12px;width:82px;height:54px;font-size:1.35rem;font-weight:900}.practice-hanamaru{text-align:center;font-size:5rem;animation:.35s ease-out pop}.practice-complete-model{text-align:center;max-width:560px;margin:0 auto}.practice-reference-model{text-align:center;background:#f7fcfa;border:2px solid #c9ddd8;border-radius:18px;max-width:680px;margin:0 auto 22px;padding:16px}.practice-reference-model>small{color:#177565;letter-spacing:.1em;margin-bottom:10px;font-weight:900;display:block}.practice-reference-model .practice-model{margin-bottom:0}.number-reference-model svg{width:min(100%,680px);max-height:270px}.practice-total{border:3px solid #173a68;border-radius:16px 16px 8px 8px;width:82%;margin:14px auto 0;padding:14px}.practice-parts{grid-template-columns:1fr 1fr;gap:4px;width:82%;margin:4px auto;display:grid}.practice-parts>div{border:3px solid #2474c6;border-radius:8px 8px 16px 16px;padding:14px}.practice-total span,.practice-parts span{color:#516579;font-size:.85rem;display:block}.practice-total strong,.practice-parts strong{color:#173a68;font-size:1.55rem;display:block}.practice-complete-model p{color:#173a68;font-size:1.25rem;font-weight:900}.practice-result-card{text-align:center}.practice-result-card img{width:min(280px,70%);margin:0 auto 14px}.practice-result-card small{color:#e14d4d;letter-spacing:.08em;font-weight:900}.practice-result-card h1{color:#173a68}.practice-score{justify-content:center;align-items:baseline;gap:12px;margin:22px 0;display:flex}.practice-score strong{color:#e14d4d;font-size:4rem}.practice-result-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:24px;display:flex}.practice-model{color:#164c42;width:min(620px,100%);margin:22px auto}.practice-model button{color:#164c42;text-align:center;background:#fff;border:2px solid #176e60;width:100%;min-height:76px;padding:10px}.practice-model button:disabled{opacity:1;cursor:default}.practice-model button span,.practice-field span{color:#62736e;font-size:.78rem;font-weight:800;display:block}.practice-model button strong{margin-top:4px;font-size:1.7rem;display:block}.practice-model button.active{z-index:2;outline-offset:2px;outline:5px solid #70b8ff;position:relative}.practice-model.wrong button{border-color:#d34a42}.v52-part-whole .whole,.v52-part-whole .parts>div{background:0 0;border:0;min-height:0;padding:0;display:block}.v52-part-whole .whole button{background:#fff0b8;border-radius:12px 12px 0 0;min-height:82px}.v52-part-whole .parts button{background:#dceee8;border-top:0;min-height:82px}.v52-part-whole .parts>div:first-child button{border-radius:0 0 0 12px}.v52-part-whole .parts>div:last-child button{background:#e9f4cf;border-left:0;border-radius:0 0 12px}.v52-equal-groups .equal-total{background:0 0;border:0;min-height:0;margin-bottom:10px;padding:0;display:block}.v52-equal-groups .equal-total button{background:#fff0b8;border:3px solid #176e60;border-radius:12px;min-height:76px}.v52-equal-groups .equal-caption>div button{background:#edf6f2;border-radius:10px;min-height:68px}.v52-equal-groups .equal-bar small{color:#62736e;text-align:center;font-size:.65rem;display:block}.model-whole button{background:#fff0b8;border-radius:12px 12px 0 0}.model-parts{grid-template-columns:1fr 1fr;display:grid}.model-parts button{background:#dceee8;border-top:0}.model-parts button:first-child{border-radius:0 0 0 12px}.model-parts button:last-child{background:#e9f4cf;border-left:0;border-radius:0 0 12px}.change-model{background:#f7faf8;border:2px solid #b9d7cf;border-radius:18px;padding:14px}.change-flow{grid-template-columns:1fr 86px 1fr;align-items:center;display:grid}.change-flow button{background:#dceee8;border-radius:15px;min-height:96px}.change-flow .change-end{background:#fff0b8}.change-arrow{color:#176e60;justify-items:center;display:grid}.change-arrow b{color:#fff;background:#176e60;border-radius:50%;place-items:center;width:34px;height:34px;font-size:1.35rem;display:grid}.change-arrow span{margin-top:-8px;font-size:3.2rem;line-height:1}.change-amount{grid-template-columns:86px 1fr 86px;align-items:center;margin-top:12px;display:grid}.change-amount>span{color:#62736e;text-align:center;grid-column:1;font-size:.75rem;font-weight:900}.change-amount button{background:#e9f4cf;border-radius:14px;grid-column:2;min-height:72px}.compare-model{background:#f7faf8;border:2px solid #b9d7cf;border-radius:18px;gap:10px;padding:14px;display:grid}.compare-row{grid-template-columns:3fr 2fr;display:grid}.compare-row>button{background:#dceee8;border-radius:12px 0 0 12px}.compare-row.long>button{grid-column:1}.difference-segment{grid-column:2}.difference-segment button{background:#fff0b8;border-style:dashed;border-left-width:0;border-left-color:currentColor;border-radius:0 12px 12px 0}.compare-row.short>button{background:#e9f4cf;border-radius:12px;grid-column:1}.groups-model{background:#f7faf8;border:2px solid #b9d7cf;border-radius:18px;padding:14px}.groups-total button{background:#fff0b8;border-radius:14px}.groups-brace{border-bottom:3px solid #176e60;border-left:3px solid 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