.duo-subject-container{flex-direction:column;max-width:720px;margin:0 auto;padding:32px 24px;display:flex}.duo-subject-grid{grid-template-columns:repeat(3,1fr);gap:12px;width:100%;display:grid}.duo-subject-card{background:var(--c-surface,#fff);border:1px solid var(--c-border,#e4e4e7);cursor:pointer;color:var(--c-text,#18181b);aspect-ratio:1;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:24px 16px;transition:all .15s;display:flex;position:relative}.duo-subject-card:hover{border-color:var(--c-border-hover,#d4d4d8);box-shadow:var(--c-shadow-md,0 4px 12px #0000000f)}.duo-subject-card:active{transform:scale(.98)}.duo-subject-card-selected{background:var(--c-text,#18181b);border-color:var(--c-text,#18181b);color:var(--c-bg,#fafafa)}.duo-subject-card-empty{background:var(--c-surface-2,#f4f4f5);border:1px dashed var(--c-border,#e4e4e7);color:var(--c-text-3,#a1a1aa)}.duo-subject-card-empty:hover{border-color:var(--c-border-hover,#d4d4d8)}.duo-subject-icon{display:none}.duo-subject-info{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:4px;display:flex}.duo-subject-title{margin:0;font-size:15px;font-weight:600;line-height:1.3}.duo-subject-count{color:var(--c-text-3,#a1a1aa);margin:0;font-size:13px;font-weight:400}.duo-subject-check{background:var(--c-bg,#fff);border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;font-size:12px;display:flex;position:absolute;top:8px;right:8px}.duo-action-container{text-align:center;width:100%;padding:32px 0}.duo-start-button{background:var(--c-text,#18181b);color:var(--c-bg,#fff);border-radius:10px;align-items:center;gap:12px;padding:14px 48px;font-size:16px;font-weight:600;transition:opacity .15s;display:inline-flex}.duo-start-button:hover{opacity:.85}.duo-start-button:active{opacity:.7}.duo-selected-info{color:var(--c-text-3,#a1a1aa);margin-top:12px;font-size:14px}@media (width<=1024px){.duo-subject-grid{grid-template-columns:repeat(2,1fr);gap:10px}}@media (width<=640px){.duo-subject-grid{grid-template-columns:1fr}}.duo-quiz-container{max-width:720px;margin:0 auto;padding:20px}.duo-quiz-card{background:var(--c-surface,#fff);border:1px solid var(--c-border,#e4e4e7);border-radius:12px;padding:24px}.quiz-stage-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.quiz-back-button{color:var(--c-text-2,#52525b);border:1px solid var(--c-border,#e4e4e7);background:0 0;border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:500;transition:all .15s;display:inline-flex}.quiz-back-button:hover{background:var(--c-surface-2,#f4f4f5);color:var(--c-text,#18181b)}.duo-quiz-question{color:var(--c-text,#18181b);margin-bottom:24px;font-size:1.375rem;font-weight:600;line-height:1.5}.duo-quiz-answer{color:var(--c-text,#18181b);background:var(--c-green-light,#ecfdf5);border:1px solid #0596691a;border-radius:10px;margin-bottom:24px;padding:20px;font-size:15px;font-weight:400;line-height:1.7}.duo-quiz-actions{justify-content:flex-end;gap:8px;display:flex}.duo-quiz-button{border-radius:8px;padding:10px 24px;font-size:14px;font-weight:600;transition:all .15s}.duo-quiz-button-primary{background:var(--c-text,#18181b);color:var(--c-bg,#fff)}.duo-quiz-button-primary:hover{opacity:.85}.duo-quiz-button-primary:active{opacity:.7}.duo-quiz-button-secondary{background:var(--c-surface-2,#f4f4f5);color:var(--c-text,#18181b);border:1px solid var(--c-border,#e4e4e7)}.duo-quiz-button-secondary:hover{background:var(--c-border,#e4e4e7)}.duo-settings-container{max-width:600px;margin:0 auto;padding:32px 20px}.duo-settings-card{background:var(--c-surface,#fff);border:1px solid var(--c-border,#e4e4e7);border-radius:12px;margin-bottom:12px;padding:20px}.duo-settings-title{color:var(--c-text,#18181b);margin-bottom:12px;font-size:15px;font-weight:600}.duo-settings-option{border-bottom:1px solid var(--c-border,#e4e4e7);justify-content:space-between;align-items:center;padding:12px 0;display:flex}.duo-settings-option:last-child{border-bottom:none}.duo-settings-label{color:var(--c-text,#18181b);font-size:14px;font-weight:500}.duo-toggle{background:var(--c-border,#e4e4e7);cursor:pointer;border-radius:12px;width:44px;height:24px;transition:background .2s;position:relative}.duo-toggle.active{background:var(--c-text,#18181b)}.duo-toggle:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #0000001a}.duo-toggle.active:after{transform:translate(20px)}.token-display-header{align-items:center;gap:6px;display:flex}.token-badge{background:var(--c-surface-2,#f4f4f5);border:1px solid var(--c-border,#e4e4e7);border-radius:6px;align-items:center;gap:5px;padding:4px 10px;transition:all .15s;display:flex}.token-badge:hover{border-color:var(--c-border-hover,#d4d4d8)}.token-badge-premium{background:var(--c-green-light,#ecfdf5);border-color:#05966926}.token-icon{color:var(--c-text-2,#52525b);flex-shrink:0}.token-count{color:var(--c-text,#18181b);text-align:center;min-width:16px;font-size:13px;font-weight:600}.token-display-inline{background:var(--c-surface-2,#f4f4f5);border:1px solid var(--c-border,#e4e4e7);border-radius:6px;align-items:center;gap:4px;padding:2px 8px;display:inline-flex}.token-icon-inline{color:var(--c-text-2)}.token-text-inline{color:var(--c-text);font-size:13px;font-weight:600}.token-card{background:var(--c-surface,#fff)}.token-summary{text-align:center;margin:10px 0}.token-total{flex-direction:column;align-items:center;gap:2px;display:flex}.token-total strong{color:var(--c-text,#18181b);font-size:28px;font-weight:700;line-height:1}.token-label{color:var(--c-text-3,#a1a1aa);text-transform:uppercase;letter-spacing:.03em;font-size:11px;font-weight:500}.token-breakdown{border-top:1px solid var(--c-border,#e4e4e7);flex-direction:column;gap:10px;margin-top:12px;padding-top:12px;display:flex}.token-row{align-items:center;gap:8px;display:flex}.token-row-icon{background:var(--c-surface-2,#f4f4f5);width:28px;height:28px;color:var(--c-text-2,#52525b);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.token-row-content{flex-direction:column;flex:1;gap:3px;display:flex}.token-row-label{color:var(--c-text-3,#a1a1aa);text-transform:uppercase;letter-spacing:.03em;font-size:11px;font-weight:500}.token-progress-bar{background:var(--c-surface-2,#f4f4f5);border-radius:2px;height:4px;overflow:hidden}.token-progress-fill{border-radius:2px;height:100%;transition:width .3s}.token-progress-daily{background:var(--c-text,#18181b)}.token-progress-bonus{background:var(--c-green,#059669)}.token-row-value{color:var(--c-text,#18181b);font-size:12px;font-weight:600}.token-empty-message{background:var(--c-surface-2,#f4f4f5);color:var(--c-text-3,#a1a1aa);text-align:center;border-radius:8px;margin-top:10px;padding:10px;font-size:12px;line-height:1.5}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#00000080;justify-content:center;align-items:center;padding:20px;animation:.15s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:var(--c-surface,#fff);width:100%;max-width:420px;box-shadow:var(--c-shadow-lg,0 8px 24px #00000014);border-radius:16px;padding:28px;animation:.2s slideUp;position:relative}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.modal-close{cursor:pointer;width:32px;height:32px;color:var(--c-text-3,#a1a1aa);background:0 0;border-radius:8px;justify-content:center;align-items:center;transition:background .15s;display:flex;position:absolute;top:12px;right:12px}.modal-close:hover{background:var(--c-surface-2,#f4f4f5);color:var(--c-text,#18181b)}.token-modal-header{text-align:center;margin-bottom:20px}.token-modal-icon{margin-bottom:12px;font-size:48px}.token-modal-title{color:var(--c-text,#18181b);margin-bottom:6px;font-size:20px;font-weight:700}.token-modal-subtitle{color:var(--c-text-2,#52525b);font-size:14px;line-height:1.5}.token-modal-status{background:var(--c-surface-2,#f4f4f5);border-radius:10px;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px;padding:14px;display:grid}.token-status-item{align-items:center;gap:8px;display:flex}.token-status-icon{color:var(--c-text-2,#52525b);flex-shrink:0}.token-status-content{flex-direction:column;gap:1px;display:flex}.token-status-label{color:var(--c-text-3,#a1a1aa);text-transform:uppercase;letter-spacing:.03em;font-size:10px;font-weight:500}.token-status-value{color:var(--c-text,#18181b);font-size:16px;font-weight:700}.token-modal-options{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.token-option-button{background:var(--c-surface,#fff);border:1px solid var(--c-border,#e4e4e7);cursor:pointer;text-align:left;border-radius:10px;align-items:center;gap:12px;padding:14px;transition:all .15s;display:flex}.token-option-button:hover{border-color:var(--c-border-hover,#d4d4d8);box-shadow:var(--c-shadow-sm,0 1px 2px #0000000a)}.token-option-primary{background:var(--c-text,#18181b);border-color:var(--c-text,#18181b);color:var(--c-bg,#fff)}.token-option-primary:hover{opacity:.9}.token-option-primary .token-option-content strong,.token-option-primary .token-option-content span{color:inherit}.token-option-icon{background:var(--c-surface-2,#f4f4f5);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;display:flex}.token-option-primary .token-option-icon{background:#ffffff26}.token-option-content{flex-direction:column;flex:1;gap:2px;display:flex}.token-option-content strong{color:var(--c-text,#18181b);font-size:14px;font-weight:600}.token-option-content span{color:var(--c-text-2,#52525b);font-size:12px;line-height:1.4}.token-modal-cancel{width:100%;color:var(--c-text-3,#a1a1aa);background:0 0;border-radius:8px;padding:10px;font-size:14px;font-weight:500;transition:all .15s}.token-modal-cancel:hover{background:var(--c-surface-2,#f4f4f5);color:var(--c-text,#18181b)}.quiz-header-tokens{z-index:10;position:absolute;top:16px;right:16px}@media (width<=640px){.modal-content{border-radius:14px;padding:20px}.token-modal-title{font-size:18px}.token-modal-icon{font-size:40px}.token-modal-status{grid-template-columns:1fr}.token-option-button{padding:12px}.token-option-icon{width:36px;height:36px;font-size:18px}.quiz-header-tokens{top:10px;right:10px}}*,:before,:after,::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border:0 solid #e5e7eb}:before,:after{--tw-content:""}html,:host{-webkit-text-size-adjust:100%;tab-size:4;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent;font-family:Pretendard,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;line-height:1.5}body{line-height:inherit;margin:0}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-feature-settings:normal;font-variation-settings:normal;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-feature-settings:inherit;font-variation-settings:inherit;font-family:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:#0000;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{margin:0;padding:0;list-style:none}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder{opacity:1;color:#9ca3af}textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.pointer-events-none{pointer-events:none}.\!visible{visibility:visible!important}.visible{visibility:visible}.static{position:static}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.inset-0{inset:0}.left-0\.5{left:.125rem}.left-4{left:1rem}.right-3{right:.75rem}.right-4{right:1rem}.top-0\.5{top:.125rem}.top-1\/2{top:50%}.top-2{top:.5rem}.top-3{top:.75rem}.top-4{top:1rem}.z-0{z-index:0}.z-10{z-index:10}.z-50{z-index:50}.z-\[-2\]{z-index:-2}.m-\[2px\]{margin:2px}.mx-4{margin-left:1rem;margin-right:1rem}.mx-auto{margin-left:auto;margin-right:auto}.my-8{margin-top:2rem;margin-bottom:2rem}.mb-1{margin-bottom:.25rem}.mb-1\.5{margin-bottom:.375rem}.mb-10{margin-bottom:2.5rem}.mb-12{margin-bottom:3rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.mb-5{margin-bottom:1.25rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.ml-1{margin-left:.25rem}.ml-auto{margin-left:auto}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mt-auto{margin-top:auto}.line-clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.grid{display:grid}.hidden{display:none}.h-1{height:.25rem}.h-10{height:2.5rem}.h-12{height:3rem}.h-14{height:3.5rem}.h-16{height:4rem}.h-2{height:.5rem}.h-2\.5{height:.625rem}.h-20{height:5rem}.h-3{height:.75rem}.h-4{height:1rem}.h-5{height:1.25rem}.h-6{height:1.5rem}.h-8{height:2rem}.h-9{height:2.25rem}.h-\[111px\]{height:111px}.h-\[138\.5px\]{height:138.5px}.h-\[700px\]{height:700px}.h-full{height:100%}.max-h-0{max-height:0}.max-h-\[2000px\]{max-height:2000px}.min-h-\[120px\]{min-height:120px}.min-h-\[160px\]{min-height:160px}.min-h-\[360px\]{min-height:360px}.min-h-\[700px\]{min-height:700px}.min-h-\[70px\]{min-height:70px}.min-h-screen{min-height:100vh}.w-10{width:2.5rem}.w-11{width:2.75rem}.w-12{width:3rem}.w-14{width:3.5rem}.w-16{width:4rem}.w-20{width:5rem}.w-3{width:.75rem}.w-32{width:8rem}.w-4{width:1rem}.w-40{width:10rem}.w-5{width:1.25rem}.w-6{width:1.5rem}.w-8{width:2rem}.w-9{width:2.25rem}.w-fit{width:fit-content}.w-full{width:100%}.min-w-0{min-width:0}.max-w-2xl{max-width:42rem}.max-w-6xl{max-width:72rem}.max-w-\[150px\]{max-width:150px}.max-w-\[380px\]{max-width:380px}.max-w-\[400px\]{max-width:400px}.max-w-\[440px\]{max-width:440px}.max-w-\[500px\]{max-width:500px}.max-w-xl{max-width:36rem}.flex-1{flex:1}.flex-shrink-0{flex-shrink:0}.origin-top{transform-origin:top}.-translate-y-1\/2{--tw-translate-y:-50%;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.-rotate-90{--tw-rotate:-90deg;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.transform{transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@keyframes bounce-in{0%{opacity:0;transform:scale(.8)}60%{transform:scale(1.02)}to{opacity:1;transform:scale(1)}}@keyframes fade-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}.animate-spin{animation:1s linear infinite spin}.cursor-not-allowed{cursor:not-allowed}.cursor-pointer{cursor:pointer}.resize-none{resize:none}.appearance-none{appearance:none}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-cols-5{grid-template-columns:repeat(5,minmax(0,1fr))}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-center{align-items:center}.items-baseline{align-items:baseline}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-1\.5{gap:.375rem}.gap-2{gap:.5rem}.gap-2\.5{gap:.625rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-5{gap:1.25rem}.gap-6{gap:1.5rem}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.whitespace-pre-wrap{white-space:pre-wrap}.rounded{border-radius:.25rem}.rounded-2xl{border-radius:1rem}.rounded-\[22px\]{border-radius:22px}.rounded-\[32px\]{border-radius:32px}.rounded-full{border-radius:9999px}.rounded-lg{border-radius:.5rem}.rounded-md{border-radius:.375rem}.rounded-xl{border-radius:.75rem}.border{border-width:1px}.border-2{border-width:2px}.border-4{border-width:4px}.border-b-2{border-bottom-width:2px}.border-t{border-top-width:1px}.border-t-2{border-top-width:2px}.border-\[\#D3F5BB\]{--tw-border-opacity:1;border-color:rgb(211 245 187/var(--tw-border-opacity,1))}.border-blue-100{--tw-border-opacity:1;border-color:rgb(219 234 254/var(--tw-border-opacity,1))}.border-duo-blue{border-color:var(--c-blue,#2563eb)}.border-duo-gray{border-color:var(--c-border,#e4e4e7)}.border-duo-red{border-color:var(--c-red,#dc2626)}.border-gray-100{--tw-border-opacity:1;border-color:rgb(243 244 246/var(--tw-border-opacity,1))}.border-gray-200{--tw-border-opacity:1;border-color:rgb(229 231 235/var(--tw-border-opacity,1))}.border-green-200{--tw-border-opacity:1;border-color:rgb(187 247 208/var(--tw-border-opacity,1))}.border-orange-200{--tw-border-opacity:1;border-color:rgb(254 215 170/var(--tw-border-opacity,1))}.border-purple-200{--tw-border-opacity:1;border-color:rgb(233 213 255/var(--tw-border-opacity,1))}.border-red-100{--tw-border-opacity:1;border-color:rgb(254 226 226/var(--tw-border-opacity,1))}.border-red-200{--tw-border-opacity:1;border-color:rgb(254 202 202/var(--tw-border-opacity,1))}.border-white{--tw-border-opacity:1;border-color:rgb(255 255 255/var(--tw-border-opacity,1))}.border-yellow-200{--tw-border-opacity:1;border-color:rgb(254 240 138/var(--tw-border-opacity,1))}.border-t-gray-400{--tw-border-opacity:1;border-top-color:rgb(156 163 175/var(--tw-border-opacity,1))}.border-t-transparent{border-top-color:#0000}.bg-\[\#CE82FF\]{--tw-bg-opacity:1;background-color:rgb(206 130 255/var(--tw-bg-opacity,1))}.bg-\[\#F6FFEF\]{--tw-bg-opacity:1;background-color:rgb(246 255 239/var(--tw-bg-opacity,1))}.bg-\[\#FF9600\]{--tw-bg-opacity:1;background-color:rgb(255 150 0/var(--tw-bg-opacity,1))}.bg-blue-50{--tw-bg-opacity:1;background-color:rgb(239 246 255/var(--tw-bg-opacity,1))}.bg-brilliant-bg{background-color:var(--c-bg,#fafafa)}.bg-duo-blue{background-color:var(--c-blue,#2563eb)}.bg-duo-green{background-color:var(--c-green,#059669)}.bg-gray-100{--tw-bg-opacity:1;background-color:rgb(243 244 246/var(--tw-bg-opacity,1))}.bg-gray-200{--tw-bg-opacity:1;background-color:rgb(229 231 235/var(--tw-bg-opacity,1))}.bg-gray-50{--tw-bg-opacity:1;background-color:rgb(249 250 251/var(--tw-bg-opacity,1))}.bg-gray-900\/40{background-color:#11182766}.bg-gray-900\/50{background-color:#11182780}.bg-green-50{--tw-bg-opacity:1;background-color:rgb(240 253 244/var(--tw-bg-opacity,1))}.bg-orange-50{--tw-bg-opacity:1;background-color:rgb(255 247 237/var(--tw-bg-opacity,1))}.bg-purple-50{--tw-bg-opacity:1;background-color:rgb(250 245 255/var(--tw-bg-opacity,1))}.bg-purple-500{--tw-bg-opacity:1;background-color:rgb(168 85 247/var(--tw-bg-opacity,1))}.bg-red-50{--tw-bg-opacity:1;background-color:rgb(254 242 242/var(--tw-bg-opacity,1))}.bg-white{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.bg-yellow-50{--tw-bg-opacity:1;background-color:rgb(254 252 232/var(--tw-bg-opacity,1))}.p-2\.5{padding:.625rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-5{padding:1.25rem}.p-6{padding:1.5rem}.p-8{padding:2rem}.px-1\.5{padding-left:.375rem;padding-right:.375rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-2\.5{padding-left:.625rem;padding-right:.625rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-5{padding-left:1.25rem;padding-right:1.25rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.py-0\.5{padding-top:.125rem;padding-bottom:.125rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-1\.5{padding-top:.375rem;padding-bottom:.375rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-3\.5{padding-top:.875rem;padding-bottom:.875rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-5{padding-top:1.25rem;padding-bottom:1.25rem}.pb-16{padding-bottom:4rem}.pb-20{padding-bottom:5rem}.pb-6{padding-bottom:1.5rem}.pl-11{padding-left:2.75rem}.pl-12{padding-left:3rem}.pr-2{padding-right:.5rem}.pr-4{padding-right:1rem}.pt-2{padding-top:.5rem}.pt-4{padding-top:1rem}.pt-6{padding-top:1.5rem}.text-left{text-align:left}.text-center{text-align:center}.text-2xl{font-size:1.5rem;line-height:2rem}.text-3xl{font-size:1.875rem;line-height:2.25rem}.text-6xl{font-size:3.75rem;line-height:1}.text-\[10px\]{font-size:10px}.text-\[11px\]{font-size:11px}.text-base{font-size:1rem;line-height:1.5rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:.75rem;line-height:1rem}.font-black{font-weight:900}.font-bold{font-weight:700}.font-medium{font-weight:500}.font-normal{font-weight:400}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.leading-none{line-height:1}.leading-relaxed{line-height:1.625}.leading-snug{line-height:1.375}.leading-tight{line-height:1.25}.tracking-tight{letter-spacing:-.025em}.tracking-wide{letter-spacing:.025em}.tracking-wider{letter-spacing:.05em}.tracking-widest{letter-spacing:.1em}.text-blue-400{--tw-text-opacity:1;color:rgb(96 165 250/var(--tw-text-opacity,1))}.text-duo-blue{color:var(--c-blue,#2563eb)}.text-duo-dark{color:var(--c-text,#18181b)}.text-duo-green{color:var(--c-green,#059669)}.text-duo-green-shadow{color:var(--duo-green-shadow,#065f46)}.text-duo-purple{--tw-text-opacity:1;color:rgb(124 58 237/var(--tw-text-opacity,1))}.text-duo-red{color:var(--c-red,#dc2626)}.text-duo-red-shadow{--tw-text-opacity:1;color:rgb(185 28 28/var(--tw-text-opacity,1))}.text-duo-yellow-shadow{--tw-text-opacity:1;color:rgb(180 83 9/var(--tw-text-opacity,1))}.text-gray-400{--tw-text-opacity:1;color:rgb(156 163 175/var(--tw-text-opacity,1))}.text-gray-500{--tw-text-opacity:1;color:rgb(107 114 128/var(--tw-text-opacity,1))}.text-gray-600{--tw-text-opacity:1;color:rgb(75 85 99/var(--tw-text-opacity,1))}.text-gray-700{--tw-text-opacity:1;color:rgb(55 65 81/var(--tw-text-opacity,1))}.text-orange-600{--tw-text-opacity:1;color:rgb(234 88 12/var(--tw-text-opacity,1))}.text-purple-600{--tw-text-opacity:1;color:rgb(147 51 234/var(--tw-text-opacity,1))}.text-white{--tw-text-opacity:1;color:rgb(255 255 255/var(--tw-text-opacity,1))}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-0{opacity:0}.opacity-100{opacity:1}.opacity-50{opacity:.5}.opacity-80{opacity:.8}.opacity-90{opacity:.9}.shadow{--tw-shadow:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--tw-shadow-colored:0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-2xl{--tw-shadow:0 25px 50px -12px #00000040;--tw-shadow-colored:0 25px 50px -12px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-\[0_4px_0_0_\#1584B9\]{--tw-shadow:0 4px 0 0 #1584b9;--tw-shadow-colored:0 4px 0 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-\[0_4px_0_0_\#46A302\]{--tw-shadow:0 4px 0 0 #46a302;--tw-shadow-colored:0 4px 0 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-lg{--tw-shadow:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--tw-shadow-colored:0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-panel{--tw-shadow:0 1px 3px #0000000a, 0 1px 2px #00000005;--tw-shadow-colored:0 1px 3px var(--tw-shadow-color), 0 1px 2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-sm{--tw-shadow:0 1px 2px 0 #0000000d;--tw-shadow-colored:0 1px 2px 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.outline-none{outline-offset:2px;outline:2px solid #0000}.blur{--tw-blur:blur(8px);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.drop-shadow{--tw-drop-shadow:drop-shadow(0 1px 2px #0000001a) drop-shadow(0 1px 1px #0000000f);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.grayscale{--tw-grayscale:grayscale(100%);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.backdrop-blur-sm{--tw-backdrop-blur:blur(4px);-webkit-backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,-webkit-backdrop-filter,backdrop-filter;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-all{transition-property:all;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-opacity{transition-property:opacity;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-transform{transition-property:transform;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.duration-1000{transition-duration:1s}.duration-200{transition-duration:.2s}.duration-300{transition-duration:.3s}.duration-500{transition-duration:.5s}.duration-700{transition-duration:.7s}.ease-linear{transition-timing-function:linear}.ease-out{transition-timing-function:cubic-bezier(0,0,.2,1)}:root{--sidebar-w:240px;--topbar-h:52px;font-family:Pretendard,-apple-system,BlinkMacSystemFont,system-ui,Segoe UI,sans-serif}:root,[data-theme=light]{--c-bg:#fafafa;--c-surface:#fff;--c-surface-2:#f4f4f5;--c-border:#e4e4e7;--c-border-hover:#d4d4d8;--c-text:#18181b;--c-text-2:#52525b;--c-text-3:#a1a1aa;--c-accent:#18181b;--c-accent-hover:#27272a;--c-accent-subtle:#f4f4f5;--c-blue:#2563eb;--c-blue-light:#eff6ff;--c-green:#059669;--c-green-light:#ecfdf5;--c-red:#dc2626;--c-red-light:#fef2f2;--c-shadow-sm:0 1px 2px #0000000a;--c-shadow-md:0 4px 12px #0000000f;--c-shadow-lg:0 8px 24px #00000014;--duo-green:#059669;--duo-green-hover:#047857;--duo-green-shadow:#065f46;--duo-yellow:#d97706;--duo-yellow-hover:#b45309;--duo-gray:#e4e4e7;--duo-gray-dark:#a1a1aa;--bg-base:#fafafa;--bg-surface:#fff;--sidebar-bg:#fff;--sidebar-border:#e4e4e7;--text-primary:#18181b;--text-secondary:#52525b;--text-muted:#a1a1aa;--panel-bg:#fff;--panel-border:#e4e4e7;--shadow-soft:0 1px 2px #0000000a;--shadow-card:0 4px 12px #0000000f;--shadow-elevated:0 8px 24px #00000014}[data-theme=warm]{--c-bg:#fffbf5;--c-surface:#fff;--c-surface-2:#fff7ed;--c-border:#fed7aa;--c-border-hover:#fdba74;--c-text:#431407;--c-text-2:#78350f;--c-text-3:#c2410c;--c-accent:#9a3412;--c-accent-hover:#7c2d12;--c-accent-subtle:#fff7ed;--c-shadow-sm:0 1px 2px #9a34120a;--c-shadow-md:0 4px 12px #9a34120f;--c-shadow-lg:0 8px 24px #9a341214;--duo-green:#ea580c;--duo-green-hover:#c2410c;--duo-green-shadow:#9a3412;--duo-yellow:#d97706;--duo-yellow-hover:#b45309;--duo-gray:#fed7aa;--duo-gray-dark:#fdba74;--bg-base:#fffbf5;--bg-surface:#fff;--sidebar-bg:#fffbf5;--sidebar-border:#fed7aa;--text-primary:#431407;--text-secondary:#78350f;--text-muted:#c2410c;--panel-bg:#fff;--panel-border:#fed7aa;--shadow-soft:0 1px 2px #9a34120a;--shadow-card:0 4px 12px #9a34120f;--shadow-elevated:0 8px 24px #9a341214}[data-theme=dark]{--c-bg:#09090b;--c-surface:#18181b;--c-surface-2:#27272a;--c-border:#3f3f46;--c-border-hover:#52525b;--c-text:#fafafa;--c-text-2:#a1a1aa;--c-text-3:#71717a;--c-accent:#fafafa;--c-accent-hover:#e4e4e7;--c-accent-subtle:#27272a;--c-blue:#60a5fa;--c-blue-light:#60a5fa1a;--c-green:#34d399;--c-green-light:#34d3991a;--c-red:#f87171;--c-red-light:#f871711a;--c-shadow-sm:0 1px 2px #0003;--c-shadow-md:0 4px 12px #0000004d;--c-shadow-lg:0 8px 24px #0006;--duo-green:#34d399;--duo-green-hover:#059669;--duo-green-shadow:#065f46;--duo-yellow:#fbbf24;--duo-yellow-hover:#d97706;--duo-gray:#3f3f46;--duo-gray-dark:#27272a;--bg-base:#09090b;--bg-surface:#18181b;--sidebar-bg:#18181b;--sidebar-border:#3f3f46;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-muted:#71717a;--panel-bg:#18181b;--panel-border:#3f3f46;--shadow-soft:0 1px 2px #0003;--shadow-card:0 4px 12px #0000004d;--shadow-elevated:0 8px 24px #0006}[data-theme=dark] .duo-quiz-card,[data-theme=dark] .settings-card,[data-theme=dark] .rail-insight-card{background:var(--c-surface)}[data-theme=dark] .duo-quiz-answer{background:linear-gradient(#34d39914 0%,#34d39908 100%);border-color:#34d39933}[data-theme=warm] .duo-quiz-answer{background:linear-gradient(#fff7ed 0%,#fffbf5 100%);border-color:#ea580c26}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;min-height:100vh}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--c-bg);color:var(--c-text);letter-spacing:-.01em;font-family:inherit;line-height:1.6}button{font:inherit;cursor:pointer;background:0 0;border:0}a{color:inherit;text-decoration:none}.app{flex-direction:column;min-height:100vh;display:flex}.shell-layout{background:var(--c-bg);min-height:100vh;display:flex}.shell-sidebar{width:var(--sidebar-w);background:var(--c-surface);border-right:1px solid var(--c-border);z-index:40;flex-direction:column;height:100vh;display:flex;position:fixed;top:0;left:0;overflow:hidden auto}.sidebar-logo{align-items:center;gap:10px;padding:20px 16px 16px;display:flex}.sidebar-logo-icon{background:var(--c-text);width:32px;height:32px;color:var(--c-bg);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-logo-text{flex-direction:column;display:flex}.sidebar-brand{color:var(--c-text);letter-spacing:-.02em;font-size:17px;font-weight:700;line-height:1}.sidebar-tagline{color:var(--c-text-3);margin-top:2px;font-size:11px;font-weight:500}.sidebar-nav{flex-direction:column;gap:2px;padding:8px;display:flex}.sidebar-link-wrapper{outline:none;text-decoration:none}.sidebar-link{color:var(--c-text-2);cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:8px 10px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.sidebar-link:hover{background:var(--c-surface-2);color:var(--c-text)}.sidebar-link-active{font-weight:600;background:var(--c-surface-2)!important;color:var(--c-text)!important}.sidebar-link-icon{border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;transition:all .15s;display:flex}.sidebar-link-label{flex:1}.sidebar-active-dot{border-radius:50%;flex-shrink:0;width:5px;height:5px}.sidebar-bottom{flex-direction:column;gap:6px;margin-top:auto;padding:8px;display:flex}.sidebar-card{border:1px solid var(--c-border);background:var(--c-surface);border-radius:10px;padding:12px}.sidebar-card-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.sidebar-card-title{color:var(--c-text-3);text-transform:uppercase;letter-spacing:.05em;font-size:11px;font-weight:600}.sidebar-count-badge{background:var(--c-surface-2);color:var(--c-text-3);border-radius:99px;padding:1px 7px;font-size:11px;font-weight:600}.sidebar-count-badge.active{background:var(--c-green-light,#ecfdf5);color:var(--c-green,#059669)}.sidebar-subjects-list{flex-direction:column;gap:4px;display:flex}.sidebar-subject-item{color:var(--c-text);align-items:center;gap:8px;font-size:13px;font-weight:500;display:flex}.sidebar-subject-dot{border-radius:50%;flex-shrink:0;width:6px;height:6px}.sidebar-empty-text{color:var(--c-text-3);font-size:12px;font-weight:400;line-height:1.5}.sidebar-admin-card{border-color:var(--c-blue-light,#eff6ff);background:var(--c-blue-light,#eff6ff)}.sidebar-admin-label{color:var(--c-blue,#2563eb);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:11px;font-weight:600;display:block}.sidebar-admin-email{color:var(--c-text);word-break:break-all;margin-bottom:8px;font-size:12px;font-weight:500;display:block}.sidebar-signout-btn{background:var(--c-surface);border:1px solid var(--c-border);width:100%;color:var(--c-text-2);border-radius:6px;padding:6px;font-size:12px;font-weight:500;transition:background .15s}.sidebar-signout-btn:hover{background:var(--c-surface-2)}.sidebar-admin-login{text-align:center;color:var(--c-text-3);padding:6px;font-size:12px;font-weight:500;transition:color .15s;display:block}.sidebar-admin-login:hover{color:var(--c-text)}.mobile-topbar{height:var(--topbar-h);background:var(--c-surface);border-bottom:1px solid var(--c-border);z-index:40;justify-content:space-between;align-items:center;padding:0 12px;display:none;position:fixed;top:0;left:0;right:0}.mobile-topbar-left{align-items:center;gap:8px;display:flex}.mobile-logo-icon{background:var(--c-text);width:28px;height:28px;color:var(--c-bg);border-radius:7px;justify-content:center;align-items:center;display:flex}.mobile-brand{color:var(--c-text);letter-spacing:-.02em;font-size:16px;font-weight:700}.mobile-nav{gap:1px;display:flex}.mobile-nav-link-wrapper{outline:none;text-decoration:none}.mobile-nav-link{border-radius:8px;flex-direction:column;align-items:center;gap:1px;min-width:44px;padding:4px 10px;font-size:9px;font-weight:500;transition:background .15s;display:flex}.mobile-nav-active{background:var(--c-surface-2)}.shell-main-content{margin-left:var(--sidebar-w);flex-direction:column;flex:1;min-height:100vh;display:flex}.shell-content-inner{flex:1;width:100%;max-width:720px;margin:0 auto;padding:32px 24px}.shell-page-header{max-width:640px;margin-bottom:32px}.shell-eyebrow-tag{color:var(--c-text-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-size:11px;font-weight:600;display:inline-block}.shell-page-title{color:var(--c-text);letter-spacing:-.03em;margin-bottom:4px;font-size:clamp(1.5rem,3vw,2rem);font-weight:700;line-height:1.2}.shell-page-desc{color:var(--c-text-2);font-size:15px;font-weight:400;line-height:1.6}.shell-footer{border-top:1px solid var(--c-border);margin-left:var(--sidebar-w);padding:24px}.shell-footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;max-width:720px;margin:0 auto;display:flex}.shell-footer-links{flex-wrap:wrap;gap:20px;display:flex}.shell-footer-links a{color:var(--c-text-3);font-size:13px;font-weight:400;transition:color .15s}.shell-footer-links a:hover{color:var(--c-text)}.shell-footer-copy{color:var(--c-text-3);font-size:12px}.stats-bar{flex-wrap:wrap;gap:6px;margin-bottom:20px;display:flex}.stats-chip{background:var(--c-surface);color:var(--c-text-2);border:1px solid var(--c-border);border-radius:6px;align-items:center;gap:5px;padding:4px 10px;font-size:12px;font-weight:500;display:flex}.stats-chip-streak,.stats-chip-level{color:var(--c-text)}.stats-chip-free{color:var(--c-green,#059669)}.daily-goal-bar{align-items:center;gap:12px;margin-bottom:32px;display:flex}.daily-goal-track{background:var(--c-border);border-radius:99px;flex:1;height:4px;overflow:hidden}.daily-goal-fill{border-radius:99px;height:100%;transition:width .7s}.daily-goal-label{color:var(--c-text-3);white-space:nowrap;font-size:12px;font-weight:500}.subject-greeting{margin-bottom:24px}.subject-greeting-title{color:var(--c-text);letter-spacing:-.02em;margin-bottom:4px;font-size:clamp(1.25rem,3vw,1.5rem);font-weight:700}.subject-greeting-desc{color:var(--c-text-3);font-size:14px;font-weight:400}.subject-grid-center{grid-template-columns:repeat(3,1fr);gap:12px;max-width:100%;margin:0 auto 16px;display:grid}.subject-square{aspect-ratio:1;background:var(--c-surface);border:1px solid var(--c-border);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:12px;outline:none;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:16px 12px;transition:all .15s;animation:.3s both fade-up;display:flex;position:relative}.subject-square:hover{border-color:var(--c-border-hover);box-shadow:var(--c-shadow-md)}.subject-square:active{transform:scale(.98)}.subject-square-selected{background:var(--c-text);border-color:var(--c-text);color:var(--c-bg)}.subject-square-selected:hover{border-color:var(--c-accent-hover);box-shadow:var(--c-shadow-lg)}.subject-square-check{background:var(--c-bg);border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;display:flex;position:absolute;top:8px;right:8px}.subject-square-icon{opacity:.9;font-size:28px;line-height:1}.subject-square-selected .subject-square-icon{opacity:1}.subject-square-label{color:var(--c-text);letter-spacing:-.01em;text-align:center;font-size:14px;font-weight:600;line-height:1.2}.subject-square-selected .subject-square-label{color:var(--c-bg)}.subject-square-count{background:var(--c-surface-2);color:var(--c-text-3);border-radius:4px;padding:2px 8px;font-size:11px;font-weight:500}.subject-square-selected .subject-square-count{color:#fffc;background:#ffffff26}.subject-cta-wrapper{z-index:30;margin-top:8px;margin-bottom:8px;transition:opacity .2s,transform .2s;position:sticky;bottom:16px}.subject-cta-bar{background:var(--c-surface);max-width:100%;box-shadow:var(--c-shadow-lg);border:1px solid var(--c-border);border-radius:12px;align-items:center;gap:12px;margin:0 auto;padding:12px 16px;display:flex}.subject-cta-info{flex:1;min-width:0}.subject-cta-count{color:var(--c-text);font-size:13px;font-weight:600;line-height:1.2}.subject-cta-names{color:var(--c-text-3);white-space:nowrap;text-overflow:ellipsis;margin-top:1px;font-size:12px;font-weight:400;overflow:hidden}.subject-cta-button{background:var(--c-text);color:var(--c-bg);white-space:nowrap;border-radius:8px;flex-shrink:0;align-items:center;gap:4px;padding:10px 20px;font-size:14px;font-weight:600;transition:opacity .15s;display:flex}.subject-cta-button:hover{opacity:.85}.subject-cta-button:active{opacity:.7}.seo-section{flex-direction:column;gap:16px;margin-top:48px;margin-bottom:48px;display:flex}.seo-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;padding:24px}.seo-badge{color:var(--c-text-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;font-size:11px;font-weight:600;display:inline-block}.seo-badge-purple{color:var(--c-text-2)}.seo-heading{color:var(--c-text);letter-spacing:-.02em;margin-bottom:6px;font-size:18px;font-weight:700}.seo-text{color:var(--c-text-2);margin-bottom:16px;font-size:14px;font-weight:400;line-height:1.7}.seo-text strong{color:var(--c-text);font-weight:600}.seo-subject-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;display:grid}.seo-subject-card{border:1px solid var(--c-border);background:var(--c-surface);border-radius:10px;padding:14px;transition:border-color .15s}.seo-subject-card:hover{border-color:var(--c-border-hover)}.seo-subject-name{color:var(--c-text);margin-bottom:4px;font-size:13px;font-weight:600}.seo-subject-desc{color:var(--c-text-3);margin-bottom:6px;font-size:11px;font-weight:400;line-height:1.5}.seo-subject-count{color:var(--c-text-2);font-size:11px;font-weight:600}.seo-faq-grid{flex-direction:column;gap:8px;display:flex}.seo-faq-item{background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:10px;padding:14px}.seo-faq-question{color:var(--c-text);margin-bottom:4px;font-size:14px;font-weight:600}.seo-faq-answer{color:var(--c-text-2);font-size:13px;font-weight:400;line-height:1.6}.animate-fade-up{animation:.3s both fade-up}.animate-bounce-in{animation:.3s both bounce-in}@keyframes fade-in-up{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in-up{animation:.25s both fade-in-up}.celebration-container{pointer-events:none;z-index:9999;position:fixed;inset:0;overflow:hidden}.confetti-particle{animation:1.8s cubic-bezier(.25,.46,.45,.94) forwards confetti-fall;position:absolute}@keyframes confetti-fall{0%{opacity:1;transform:translateY(0)rotate(0)scale(1)}50%{opacity:1}to{opacity:0;transform:translateY(100vh)rotate(720deg)scale(.3)}}.levelup-flash{background:radial-gradient(circle,#6366f114 0%,#0000 70%);animation:.6s ease-out flash-pulse;position:absolute;inset:0}@keyframes flash-pulse{0%{opacity:0;transform:scale(.5)}50%{opacity:1;transform:scale(1.2)}to{opacity:0;transform:scale(1.5)}}.duo-button{background:var(--c-text);width:100%;color:var(--c-bg);text-align:center;border-radius:10px;padding:14px 20px;font-size:15px;font-weight:600;transition:opacity .15s}.duo-button:hover:not(:disabled){opacity:.85}.duo-button:active:not(:disabled){opacity:.7}.duo-button:disabled{background:var(--c-border);color:var(--c-text-3);cursor:not-allowed}@media (width<=768px){.shell-sidebar{display:none}.mobile-topbar{display:flex}.shell-main-content{padding-top:var(--topbar-h);margin-left:0}.shell-content-inner{padding:16px}.shell-footer{margin-left:0}.subject-grid-center{grid-template-columns:repeat(2,1fr);gap:10px}.subject-grid-center>:nth-child(5){grid-column:1/-1;justify-self:center;max-width:calc(50% - 5px)}.subject-square{border-radius:10px;padding:12px 10px}.subject-square-icon{font-size:24px}.subject-square-label{font-size:13px}.subject-square-check{width:20px;height:20px;top:6px;right:6px}.subject-square-check svg{width:12px;height:12px}.subject-greeting-title{font-size:1.2rem}.stats-bar{gap:4px}.stats-chip{padding:3px 8px;font-size:11px}.subject-cta-bar{gap:10px;padding:10px 12px}.subject-cta-button{padding:8px 16px;font-size:13px}.seo-subject-grid{grid-template-columns:1fr 1fr}}@media (width<=480px){.subject-grid-center{grid-template-columns:repeat(2,1fr);gap:8px}.subject-square-icon{font-size:22px}.subject-square-label{font-size:12px}.subject-square-count{padding:2px 6px;font-size:10px}.seo-subject-grid{grid-template-columns:1fr}}.subject-card-inner{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;padding:20px;transition:all .15s}.subject-card-inner:hover{border-color:var(--c-border-hover);box-shadow:var(--c-shadow-md)}.subject-card-inner:active{transform:scale(.98)}.settings-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;padding:24px}.quiz-stage-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;max-width:720px;margin:0 auto;padding:24px}.quiz-stage-loading{place-items:center;min-height:340px;display:grid}.duo-toggle{background:var(--c-border);border-radius:999px;flex-shrink:0;width:44px;height:24px;transition:all .2s;position:relative}.duo-toggle-on{background:var(--c-text)}.duo-toggle-thumb{background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s cubic-bezier(.4,0,.2,1);position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #0000001f}.duo-toggle-on .duo-toggle-thumb{transform:translate(20px)}.auth-screen{background:var(--c-bg);place-items:center;min-height:100vh;padding:24px;display:grid}.auth-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;width:min(100%,420px);padding:32px}.auth-card-compact{text-align:center;width:min(100%,420px)}.auth-icon{background:var(--c-text);width:48px;height:48px;color:var(--c-bg);border-radius:10px;justify-content:center;align-items:center;display:inline-flex}.auth-title{letter-spacing:-.03em;color:var(--c-text);margin-top:16px;font-size:clamp(1.5rem,3vw,2rem);font-weight:700;line-height:1.2}.auth-description{color:var(--c-text-2);margin-top:10px;font-size:14px;line-height:1.6}.auth-form,.auth-actions,.auth-meta{flex-direction:column;gap:12px;display:flex}.auth-form,.auth-meta{margin-top:20px}.auth-field{flex-direction:column;gap:6px;display:flex}.auth-label,.auth-meta-label{color:var(--c-text);font-size:13px;font-weight:600}.auth-input-wrap,.auth-meta-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:8px;align-items:center;gap:8px;padding:10px 12px;display:flex}.auth-meta-item{flex-direction:column;align-items:flex-start}.auth-input{width:100%;color:var(--c-text);background:0 0;border:0;outline:none;font-size:14px}.auth-input::placeholder{color:var(--c-text-3)}.auth-meta-value,.rail-account-email{color:var(--c-text);word-break:break-all;font-weight:600}.auth-message{border-radius:8px;margin-top:14px;padding:12px;font-size:14px;font-weight:500;line-height:1.6}.auth-message-success{background:var(--c-green-light);color:var(--c-green)}.auth-message-error{background:var(--c-red-light);color:var(--c-red)}.auth-help{color:var(--c-text-2);margin-top:14px;font-size:13px;line-height:1.6}.admin-card{max-width:720px;margin:0 auto}.admin-card-header{align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}.status-badge{border-radius:6px;padding:4px 10px;font-size:13px;font-weight:600}.status-badge.connected{background:var(--c-green-light);color:var(--c-green)}.status-badge.missing_config,.status-badge.error,.status-badge.offline{background:var(--c-red-light);color:var(--c-red)}.settings-dashboard{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.bot-challenge-panel{background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:10px;margin-top:14px;padding:14px}.bot-challenge-frame{min-height:70px}.bot-challenge-help,.quiz-status-note{color:var(--c-text-2);margin-top:10px;font-size:13px;line-height:1.6}@media (width<=640px){.settings-dashboard{grid-template-columns:1fr}.auth-card{padding:24px}.admin-card-header{flex-direction:column}}.brilliant-bg{background:var(--c-bg)}.ad-slot-shell{position:relative}.ad-slot-label{color:var(--c-text-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:10px;font-weight:500}.ad-slot-frame{border-radius:8px;overflow:hidden}.placeholder\:text-\[\#A8DF8E\]::placeholder{--tw-text-opacity:1;color:rgb(168 223 142/var(--tw-text-opacity,1))}.placeholder\:text-gray-400::placeholder{--tw-text-opacity:1;color:rgb(156 163 175/var(--tw-text-opacity,1))}.hover\:-translate-y-0\.5:hover{--tw-translate-y:-.125rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:-translate-y-1:hover{--tw-translate-y:-.25rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:border-gray-300:hover{--tw-border-opacity:1;border-color:rgb(209 213 219/var(--tw-border-opacity,1))}.hover\:bg-\[\#1899D6\]:hover{--tw-bg-opacity:1;background-color:rgb(24 153 214/var(--tw-bg-opacity,1))}.hover\:bg-duo-green-hover:hover{background-color:var(--duo-green-hover,#047857)}.hover\:bg-gray-50:hover{--tw-bg-opacity:1;background-color:rgb(249 250 251/var(--tw-bg-opacity,1))}.hover\:bg-red-50:hover{--tw-bg-opacity:1;background-color:rgb(254 242 242/var(--tw-bg-opacity,1))}.hover\:text-duo-dark:hover{color:var(--c-text,#18181b)}.focus\:border-duo-blue:focus{border-color:var(--c-blue,#2563eb)}.focus\:border-duo-green:focus{border-color:var(--c-green,#059669)}.focus\:bg-white:focus{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.active\:translate-y-1:active{--tw-translate-y:.25rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.active\:shadow-none:active{--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:opacity-40:disabled{opacity:.4}.disabled\:opacity-50:disabled{opacity:.5}@media (width>=640px){.sm\:inline{display:inline}.sm\:flex{display:flex}.sm\:hidden{display:none}.sm\:w-1\/3{width:33.3333%}.sm\:w-2\/3{width:66.6667%}.sm\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.sm\:grid-cols-6{grid-template-columns:repeat(6,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:p-6{padding:1.5rem}.sm\:p-8{padding:2rem}.sm\:text-2xl{font-size:1.5rem;line-height:2rem}}@media (width>=768px){.md\:w-auto{width:auto}.md\:flex-none{flex:none}.md\:flex-row{flex-direction:row}.md\:p-12{padding:3rem}}@media (width>=1024px){.lg\:w-\[45\%\]{width:45%}.lg\:flex-row{flex-direction:row}}