*,:before,:after{--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: rgb(59 130 246 / .5);--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: }::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: rgb(59 130 246 / .5);--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-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:Poppins,system-ui,-apple-system,Segoe UI,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}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;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings: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:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-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{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,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{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}:root{color-scheme:light;accent-color:#46A5FC;caret-color:#46a5fc;--dur-fast: .18s;--dur-base: .22s;--ease-brand: cubic-bezier(.22,1,.36,1)}html{-webkit-text-size-adjust:100%}body{font-family:Poppins,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fafbfc;color:#0b1520;margin:0;font-size:16px;line-height:1.6;overflow-x:hidden}h1,h2,h3{letter-spacing:-.005em}:focus:not(:focus-visible){outline:none}input,select,textarea,button{font:inherit}@media (max-width: 767px){input,select,textarea{font-size:16px}}::-moz-selection{background:#eaf3fe}::selection{background:#eaf3fe}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:40px;padding:.5rem 1.15rem;border-radius:999px;font-weight:600;font-size:.9375rem;line-height:1.2;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background-color var(--dur-fast) var(--ease-brand),border-color var(--dur-fast) var(--ease-brand),color var(--dur-fast) var(--ease-brand)}@media (pointer: coarse),(max-width: 767px){.btn{min-height:44px}}.btn-primary{background:#46a5fc;color:#fff}.btn-primary:hover{box-shadow:inset 0 0 0 999px #0b152014}.btn-primary:active{box-shadow:inset 0 0 0 999px #0b152024}.btn-secondary{background:#fff;color:#0b1520;border-color:#d5dae0}.btn-secondary:hover{background:#f6f8fb;border-color:#b4bdc6}.btn-ghost{background:transparent;color:#0b1520}.btn-ghost:hover{background:#f6f8fb}.btn:disabled,.btn[aria-disabled=true]{opacity:.5;cursor:not-allowed}.\!card{background:#fff!important;border:1px solid #E4E7EB!important;border-radius:14px!important;box-shadow:0 2px 12px #0000000d!important}.card{background:#fff;border:1px solid #E4E7EB;border-radius:14px;box-shadow:0 2px 12px #0000000d}.label-caps{font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#5b606b}.field{width:100%;min-height:44px;border:1px solid #B4BDC6;border-radius:10px;padding:.55rem .8rem;background:#fff;color:#0b1520}.field:focus-visible{border-color:#46a5fc}.field[aria-invalid=true]{border-color:#fe5e5c}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.sr-only-focusable:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.visible{visibility:visible}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.inset-0{top:0;right:0;bottom:0;left:0}.inset-y-0{top:0;bottom:0}.-left-\[5px\]{left:-5px}.left-0{left:0}.left-2{left:.5rem}.right-0{right:0}.top-0{top:0}.top-2{top:.5rem}.top-\[12px\]{top:12px}.top-full{top:100%}.z-30{z-index:30}.z-40{z-index:40}.z-50{z-index:50}.m-0{margin:0}.mx-auto{margin-left:auto;margin-right:auto}.-ml-1{margin-left:-.25rem}.-ml-2{margin-left:-.5rem}.-mt-2{margin-top:-.5rem}.-mt-3{margin-top:-.75rem}.mb-0{margin-bottom:0}.mb-0\.5{margin-bottom:.125rem}.mb-1{margin-bottom:.25rem}.mb-1\.5{margin-bottom:.375rem}.mb-2{margin-bottom:.5rem}.mb-2\.5{margin-bottom:.625rem}.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-auto{margin-left:auto}.mr-1{margin-right:.25rem}.mr-1\.5{margin-right:.375rem}.mt-0{margin-top:0}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-1\.5{margin-top:.375rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-5{margin-top:1.25rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mt-px{margin-top:1px}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.hidden{display:none}.h-11{height:2.75rem}.h-12{height:3rem}.h-14{height:3.5rem}.h-2{height:.5rem}.h-3{height:.75rem}.h-4{height:1rem}.h-5{height:1.25rem}.h-6{height:1.5rem}.h-7{height:1.75rem}.h-8{height:2rem}.h-9{height:2.25rem}.h-\[18px\]{height:18px}.h-\[2\.5px\]{height:2.5px}.h-\[22px\]{height:22px}.h-\[27px\]{height:27px}.h-\[34px\]{height:34px}.h-\[50px\]{height:50px}.h-auto{height:auto}.h-full{height:100%}.h-screen{height:100vh}.max-h-\[30vh\]{max-height:30vh}.max-h-\[calc\(100vh-150px\)\]{max-height:calc(100vh - 150px)}.max-h-full{max-height:100%}.min-h-0{min-height:0px}.min-h-\[220px\]{min-height:220px}.min-h-\[44px\]{min-height:44px}.min-h-\[48px\]{min-height:48px}.min-h-\[56px\]{min-height:56px}.min-h-screen{min-height:100vh}.w-1\/2{width:50%}.w-10{width:2.5rem}.w-11{width:2.75rem}.w-12{width:3rem}.w-2\.5{width:.625rem}.w-3{width:.75rem}.w-4{width:1rem}.w-5{width:1.25rem}.w-6{width:1.5rem}.w-7{width:1.75rem}.w-72{width:18rem}.w-8{width:2rem}.w-\[104px\]{width:104px}.w-\[18px\]{width:18px}.w-\[22px\]{width:22px}.w-\[256px\]{width:256px}.w-\[3px\]{width:3px}.w-\[44px\]{width:44px}.w-\[46px\]{width:46px}.w-\[52px\]{width:52px}.w-\[7\.5rem\]{width:7.5rem}.w-\[86\%\]{width:86%}.w-\[86px\]{width:86px}.w-\[94px\]{width:94px}.w-\[96px\]{width:96px}.w-auto{width:auto}.w-full{width:100%}.min-w-0{min-width:0px}.min-w-\[170px\]{min-width:170px}.min-w-\[44px\]{min-width:44px}.max-w-\[1040px\]{max-width:1040px}.max-w-\[160px\]{max-width:160px}.max-w-\[30em\]{max-width:30em}.max-w-\[320px\]{max-width:320px}.max-w-\[34em\]{max-width:34em}.max-w-\[40em\]{max-width:40em}.max-w-\[44em\]{max-width:44em}.max-w-\[60em\]{max-width:60em}.max-w-full{max-width:100%}.max-w-lg{max-width:32rem}.max-w-md{max-width:28rem}.max-w-none{max-width:none}.max-w-read{max-width:34em}.max-w-sm{max-width:24rem}.flex-1{flex:1 1 0%}.flex-none{flex:none}.flex-shrink-0{flex-shrink:0}.border-collapse{border-collapse:collapse}.rotate-180{--tw-rotate: 180deg;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(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)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.cursor-pointer{cursor:pointer}.resize{resize:both}.list-none{list-style-type:none}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-end{align-items:flex-end}.items-center{align-items:center}.items-baseline{align-items:baseline}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-0\.5{gap:.125rem}.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-6{gap:1.5rem}.gap-\[5px\]{gap:5px}.gap-x-2{-moz-column-gap:.5rem;column-gap:.5rem}.gap-x-4{-moz-column-gap:1rem;column-gap:1rem}.gap-y-1{row-gap:.25rem}.overflow-auto{overflow:auto}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.whitespace-nowrap{white-space:nowrap}.break-all{word-break:break-all}.rounded{border-radius:.25rem}.rounded-\[10px\]{border-radius:10px}.rounded-\[9px\]{border-radius:9px}.rounded-full{border-radius:9999px}.rounded-lg{border-radius:.5rem}.rounded-pill{border-radius:999px}.rounded-xl{border-radius:.75rem}.rounded-r{border-top-right-radius:.25rem;border-bottom-right-radius:.25rem}.border{border-width:1px}.border-0{border-width:0px}.border-2{border-width:2px}.border-\[1\.5px\]{border-width:1.5px}.border-\[2\.5px\]{border-width:2.5px}.border-b{border-bottom-width:1px}.border-r{border-right-width:1px}.border-t{border-top-width:1px}.border-dashed{border-style:dashed}.border-\[\#9AA0AB\]{--tw-border-opacity: 1;border-color:rgb(154 160 171 / var(--tw-border-opacity, 1))}.border-\[\#F2B8B0\]{--tw-border-opacity: 1;border-color:rgb(242 184 176 / var(--tw-border-opacity, 1))}.border-attn{--tw-border-opacity: 1;border-color:rgb(184 121 28 / var(--tw-border-opacity, 1))}.border-blue{--tw-border-opacity: 1;border-color:rgb(70 165 252 / var(--tw-border-opacity, 1))}.border-blue-line{--tw-border-opacity: 1;border-color:rgb(207 227 250 / var(--tw-border-opacity, 1))}.border-ink{--tw-border-opacity: 1;border-color:rgb(11 21 32 / var(--tw-border-opacity, 1))}.border-line{--tw-border-opacity: 1;border-color:rgb(228 231 235 / var(--tw-border-opacity, 1))}.border-line-strong{--tw-border-opacity: 1;border-color:rgb(213 218 224 / var(--tw-border-opacity, 1))}.border-transparent{border-color:transparent}.bg-\[\#9AA0AB\]{--tw-bg-opacity: 1;background-color:rgb(154 160 171 / var(--tw-bg-opacity, 1))}.bg-\[\#E4E7EB\]{--tw-bg-opacity: 1;background-color:rgb(228 231 235 / var(--tw-bg-opacity, 1))}.bg-\[\#FFF8F7\]{--tw-bg-opacity: 1;background-color:rgb(255 248 247 / var(--tw-bg-opacity, 1))}.bg-\[rgba\(11\,21\,32\,0\.94\)\]{background-color:#0b1520f0}.bg-blue{--tw-bg-opacity: 1;background-color:rgb(70 165 252 / var(--tw-bg-opacity, 1))}.bg-blue-soft{--tw-bg-opacity: 1;background-color:rgb(245 249 255 / var(--tw-bg-opacity, 1))}.bg-blue-tint{--tw-bg-opacity: 1;background-color:rgb(234 243 254 / var(--tw-bg-opacity, 1))}.bg-ink\/30{background-color:#0b15204d}.bg-surface-2{--tw-bg-opacity: 1;background-color:rgb(246 248 251 / var(--tw-bg-opacity, 1))}.bg-surface-rail{--tw-bg-opacity: 1;background-color:rgb(235 238 242 / var(--tw-bg-opacity, 1))}.bg-white{--tw-bg-opacity: 1;background-color:rgb(255 255 255 / var(--tw-bg-opacity, 1))}.bg-white\/95{background-color:#fffffff2}.object-contain{-o-object-fit:contain;object-fit:contain}.p-0{padding:0}.p-3{padding:.75rem}.p-4{padding:1rem}.p-5{padding:1.25rem}.p-6{padding:1.5rem}.px-0\.5{padding-left:.125rem;padding-right:.125rem}.px-1{padding-left:.25rem;padding-right:.25rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.py-10{padding-top:2.5rem;padding-bottom:2.5rem}.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-4{padding-top:1rem;padding-bottom:1rem}.py-6{padding-top:1.5rem;padding-bottom:1.5rem}.pb-2{padding-bottom:.5rem}.pb-3{padding-bottom:.75rem}.pb-4{padding-bottom:1rem}.pl-1\.5{padding-left:.375rem}.pl-2{padding-left:.5rem}.pl-2\.5{padding-left:.625rem}.pl-3{padding-left:.75rem}.pl-5{padding-left:1.25rem}.pr-1{padding-right:.25rem}.pr-2{padding-right:.5rem}.pr-2\.5{padding-right:.625rem}.pr-3{padding-right:.75rem}.pr-3\.5{padding-right:.875rem}.pt-3{padding-top:.75rem}.pt-4{padding-top:1rem}.pt-\[14px\]{padding-top:14px}.text-left{text-align:left}.text-center{text-align:center}.text-right{text-align:right}.align-top{vertical-align:top}.text-2xl{font-size:1.5rem;line-height:2rem}.text-\[11px\]{font-size:11px}.text-\[12px\]{font-size:12px}.text-\[13px\]{font-size:13px}.text-\[14px\]{font-size:14px}.text-\[15px\]{font-size:15px}.text-\[16px\]{font-size:16px}.text-\[17px\]{font-size:17px}.text-\[clamp\(1\.1rem\,2\.6vw\,1\.4rem\)\]{font-size:clamp(1.1rem,2.6vw,1.4rem)}.text-\[clamp\(1\.6rem\,4vw\,2\.25rem\)\]{font-size:clamp(1.6rem,4vw,2.25rem)}.text-\[clamp\(2rem\,6vw\,3rem\)\]{font-size:clamp(2rem,6vw,3rem)}.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-bold{font-weight:700}.font-medium{font-weight:500}.font-normal{font-weight:400}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.tabular-nums{--tw-numeric-spacing: tabular-nums;font-variant-numeric:var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction)}.leading-\[1\.1\]{line-height:1.1}.leading-\[1\.25\]{line-height:1.25}.leading-snug{line-height:1.375}.leading-tight{line-height:1.25}.tracking-\[0\.06em\]{letter-spacing:.06em}.tracking-\[0\.08em\]{letter-spacing:.08em}.text-attn{--tw-text-opacity: 1;color:rgb(184 121 28 / var(--tw-text-opacity, 1))}.text-blue{--tw-text-opacity: 1;color:rgb(70 165 252 / var(--tw-text-opacity, 1))}.text-error{--tw-text-opacity: 1;color:rgb(200 50 47 / var(--tw-text-opacity, 1))}.text-error-mark{--tw-text-opacity: 1;color:rgb(254 94 92 / var(--tw-text-opacity, 1))}.text-ink{--tw-text-opacity: 1;color:rgb(11 21 32 / var(--tw-text-opacity, 1))}.text-ink-2{--tw-text-opacity: 1;color:rgb(91 96 107 / var(--tw-text-opacity, 1))}.text-white{--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity, 1))}.underline{text-decoration-line:underline}.no-underline{text-decoration-line:none}.underline-offset-2{text-underline-offset:2px}.shadow-\[0_1px_3px_rgba\(0\,0\,0\,0\.06\)\]{--tw-shadow: 0 1px 3px rgba(0,0,0,.06);--tw-shadow-colored: 0 1px 3px 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-\[inset_3px_0_0_\#46A5FC\]{--tw-shadow: inset 3px 0 0 #46A5FC;--tw-shadow-colored: inset 3px 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-xl{--tw-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px 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:2px solid transparent;outline-offset:2px}.outline{outline-style:solid}.ring{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(3px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.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{--tw-backdrop-blur: blur(8px);-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-\[width\]{transition-property:width;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.duration-200{transition-duration:.2s}@font-face{font-family:Poppins;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/poppins-400-latin.woff2) format("woff2")}@font-face{font-family:Poppins;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/poppins-500-latin.woff2) format("woff2")}@font-face{font-family:Poppins;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/poppins-600-latin.woff2) format("woff2")}@font-face{font-family:Poppins;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/poppins-700-latin.woff2) format("woff2")}:focus-visible{outline:2px solid #0B1520;outline-offset:2px;box-shadow:0 0 0 2px #46a5fc}.card:focus-visible{box-shadow:0 0 0 2px #46a5fc,0 2px 12px #0000000d}.btn-primary:focus-visible{box-shadow:0 0 0 2px #fff,0 0 0 4px #46a5fc;outline-offset:4px}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.motion-slide{transition:none!important;transform:none!important}.spin{animation-duration:2.4s}}.spin{animation:dfu-spin 1s linear infinite}@keyframes dfu-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.spin{animation:none}}@media print{.no-print,.dfu-lesson,.dfu-deck,.dfu-protected{display:none!important}.print-note{display:block!important}}.print-note{display:none}.last\:border-0:last-child{border-width:0px}.hover\:border-blue:hover{--tw-border-opacity: 1;border-color:rgb(70 165 252 / var(--tw-border-opacity, 1))}.hover\:bg-surface-2:hover{--tw-bg-opacity: 1;background-color:rgb(246 248 251 / var(--tw-bg-opacity, 1))}.hover\:bg-white:hover{--tw-bg-opacity: 1;background-color:rgb(255 255 255 / var(--tw-bg-opacity, 1))}.hover\:text-ink:hover{--tw-text-opacity: 1;color:rgb(11 21 32 / var(--tw-text-opacity, 1))}.hover\:underline:hover{text-decoration-line:underline}@media (prefers-reduced-motion: reduce){.motion-reduce\:transition-none{transition-property:none}}@media (min-width: 640px){.sm\:block{display:block}.sm\:inline{display:inline}.sm\:hidden{display:none}.sm\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.sm\:p-5{padding:1.25rem}.sm\:p-6{padding:1.5rem}.sm\:p-8{padding:2rem}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:px-8{padding-left:2rem;padding-right:2rem}.sm\:py-8{padding-top:2rem;padding-bottom:2rem}}@media (min-width: 768px){.md\:block{display:block}.md\:hidden{display:none}.md\:min-h-\[40px\]{min-height:40px}}@media (min-width: 1024px){.lg\:flex{display:flex}.lg\:hidden{display:none}.lg\:h-9{height:2.25rem}.lg\:min-h-\[36px\]{min-height:36px}.lg\:min-h-\[40px\]{min-height:40px}.lg\:w-9{width:2.25rem}.lg\:grid-cols-\[minmax\(0\,1fr\)_340px\]{grid-template-columns:minmax(0,1fr) 340px}.lg\:gap-10{gap:2.5rem}.lg\:px-10{padding-left:2.5rem;padding-right:2.5rem}.lg\:px-6{padding-left:1.5rem;padding-right:1.5rem}.lg\:py-8{padding-top:2rem;padding-bottom:2rem}}.dfu-lesson{--blue:#46A5FC;--blue2:#46A5FC;--blue-soft:#EDF6FF;--blue-soft2:#D0E9FF;--blue-tint:#F5F9FF;--ink:#1D1D1F;--ink2:#5B606B;--muted:#5B606B;--line:#E8EAEE;--line2:#E4E4E4;--surface:#F9F9FB;--good:#46A5FC;--bad:#C8322F;--amber:#F5A623;--maxw:760px;--wide:1040px;--r:18px;--shadow:0 1px 2px rgba(20,50,90,.05),0 10px 30px rgba(20,50,90,.07);--shadow-sm:0 1px 2px rgba(20,50,90,.04),0 4px 14px rgba(20,50,90,.05)}.dfu-lesson *{box-sizing:border-box}.dfu-lesson{scroll-behavior:smooth;margin:0;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:#fff;line-height:1.62;font-size:17px;font-weight:400;-webkit-font-smoothing:antialiased}.dfu-lesson .wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}.dfu-lesson .wide{max-width:var(--wide);margin:0 auto;padding:0 26px}.dfu-lesson h1,.dfu-lesson h2,.dfu-lesson h3,.dfu-lesson h4{margin:0;font-weight:700;line-height:1.12;letter-spacing:0}.dfu-lesson h2{font-size:clamp(26px,4vw,38px);font-weight:700;letter-spacing:0;line-height:1.08}.dfu-lesson h3{font-size:clamp(19px,2.6vw,24px);font-weight:700;margin:1.7em 0 .5em;letter-spacing:0}.dfu-lesson h4{font-size:16.5px;font-weight:700;margin:1.5em 0 .3em;color:#2a2a2c;letter-spacing:.005em}.dfu-lesson p{margin:0 0 1.05em}.dfu-lesson a{color:var(--blue2)}.dfu-lesson em{font-style:italic}.dfu-lesson strong{font-weight:600}.dfu-lesson .hl{color:var(--blue)}.dfu-lesson .lead{font-size:20px;line-height:1.45;color:var(--ink);font-weight:400}.dfu-lesson .muted{color:var(--ink2)}.dfu-lesson .small{font-size:14px;line-height:1.55}.dfu-lesson .shead{display:flex;align-items:center;gap:12px;margin-bottom:12px}.dfu-lesson .shead .bar{width:6px;height:30px;border-radius:3px;background:var(--blue);flex:none}.dfu-lesson .shead .num{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--blue)}.dfu-lesson .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}.dfu-lesson .barhead{display:flex;align-items:center;gap:11px;margin:1.8em 0 .5em}.dfu-lesson .barhead .bar{width:5px;height:20px;border-radius:3px;background:var(--blue);flex:none}.dfu-lesson .barhead .t{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#3a3a3c}.dfu-lesson .logo{display:inline-flex;align-items:center;gap:11px}.dfu-lesson .logo .mk{width:42px;height:34px;flex:none}.dfu-lesson .logo .w{font-weight:700;font-size:26px;letter-spacing:.01em}.dfu-lesson .logo .w .d{color:#3a3a3c}.dfu-lesson .logo .w .f{color:var(--blue)}.dfu-lesson .part{background:var(--ink);color:#fff;padding:30px 0;margin:0}.dfu-lesson .part .wrap{display:flex;align-items:baseline;gap:16px}.dfu-lesson .part .pn{font-size:13px;font-weight:700;letter-spacing:.2em;color:var(--blue)}.dfu-lesson .part .pt{font-size:clamp(20px,3vw,28px);font-weight:700;letter-spacing:0}.dfu-lesson .cover{position:relative;overflow:hidden;min-height:min(760px,88vh);display:flex;align-items:center;padding:54px 0 64px;background:#f5f9ff;border-bottom:1px solid var(--line)}.dfu-lesson .cover .wide{position:relative;z-index:1;display:grid;grid-template-columns:minmax(300px,480px) minmax(420px,1fr);gap:44px;align-items:center}.dfu-lesson .coverlogo{height:46px;width:auto;display:block;margin:0 0 42px}.dfu-lesson footer .footlogo{height:30px;width:auto;display:inline-block;margin-bottom:14px}.dfu-lesson .cover .eyebrow{margin-bottom:16px;background:#ffffffd1;border:1px solid rgba(70,165,252,.28);border-radius:999px;padding:7px 12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.dfu-lesson .cover h1{font-size:clamp(36px,6.1vw,68px);font-weight:500;letter-spacing:0;line-height:1.02;color:var(--ink);max-width:680px;margin:0}.dfu-lesson .cover h1 strong{font-weight:700;color:var(--blue)}.dfu-lesson .cover .sub{font-size:clamp(17px,2.2vw,21px);color:var(--ink2);margin:18px 0 0;max-width:570px;line-height:1.45}.dfu-lesson .cover .pills{margin-top:26px;display:flex;gap:10px;flex-wrap:wrap}.dfu-lesson .cover .herostrip{display:none}.dfu-lesson .pill{display:inline-flex;align-items:center;font-size:13px;font-weight:600;border-radius:999px;padding:8px 16px;border:1.5px solid var(--line2);color:var(--ink2);background:#fff}.dfu-lesson .pill.b{color:var(--blue2);border-color:#bcdcfd;background:var(--blue-soft)}.dfu-lesson button.pill{cursor:pointer}@media (max-width:920px){.dfu-lesson .cover{padding:42px 0 46px}.dfu-lesson .cover .wide{grid-template-columns:1fr;gap:28px}.dfu-lesson .coverlogo{margin-bottom:28px}}@media (max-width:560px){.dfu-lesson .cover h1{font-size:clamp(34px,11vw,46px)}.dfu-lesson .cover .sub{font-size:16px}}.dfu-lesson .guide-nav{position:sticky;top:0;z-index:10;background:#ffffffeb;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.dfu-lesson .guide-nav .wide{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:54px}.dfu-lesson .guide-nav .brand{font-size:12px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);white-space:nowrap}.dfu-lesson .guide-nav .links{display:flex;gap:3px;overflow-x:auto;padding:8px 0;scrollbar-width:none}.dfu-lesson .guide-nav .links::-webkit-scrollbar{display:none}.dfu-lesson .guide-nav a{flex:none;color:var(--ink2);font-size:12.5px;font-weight:700;text-decoration:none;border-radius:999px;padding:7px 12px}.dfu-lesson .guide-nav a:hover{background:var(--blue-soft);color:var(--blue2)}.dfu-lesson section[id]{scroll-margin-top:70px}@media (max-width:640px){.dfu-lesson .guide-nav .wide{justify-content:flex-start;min-height:48px}.dfu-lesson .guide-nav .brand{display:none}.dfu-lesson .guide-nav .links{width:100%}}.dfu-lesson section{padding:60px 0}.dfu-lesson section.alt{background:var(--blue-tint)}.dfu-lesson section.soft{background:var(--surface)}.dfu-lesson hr.rule{border:0;border-top:1px solid var(--line);margin:0}.dfu-lesson figure{margin:26px 0}.dfu-lesson figcaption{font-size:13.5px;color:var(--ink2);margin-top:12px;line-height:1.5;text-align:center}.dfu-lesson figcaption .tag{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue2);background:var(--blue-soft);border-radius:6px;padding:3px 8px;margin-right:8px;vertical-align:1px}.dfu-lesson figcaption .tag.amber{color:#a8700f;background:#fff3dc}.dfu-lesson .shot{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--line);box-shadow:var(--shadow)}.dfu-lesson .shot.plain{border-color:#eef1f4}.dfu-lesson .chartimg{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--line);background:#fff;padding:6px}.dfu-lesson .cap-narrow{max-width:620px;margin-left:auto;margin-right:auto}.dfu-lesson .pagefig{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:start;margin:30px 0}@media (max-width:820px){.dfu-lesson .pagefig{grid-template-columns:1fr}}.dfu-lesson .pagefig .pgcap{font-size:13px;color:var(--blue2);font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.dfu-lesson .grid{display:grid;gap:16px}.dfu-lesson .g2{grid-template-columns:1fr 1fr}.dfu-lesson .g3{grid-template-columns:repeat(3,1fr)}@media (max-width:780px){.dfu-lesson .g2,.dfu-lesson .g3{grid-template-columns:1fr}}.dfu-lesson .duo{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0}@media (max-width:780px){.dfu-lesson .duo{grid-template-columns:1fr}}.dfu-lesson .duo .side{border-radius:8px;padding:24px;border:1px solid transparent}.dfu-lesson .duo .frameside{background:var(--blue-soft);border-color:#cfe6ff}.dfu-lesson .duo .engineside{background:#eef2f7;border-color:#dfe6ee}.dfu-lesson .duo .side .k{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.dfu-lesson .duo .frameside .k{color:var(--blue2)}.dfu-lesson .duo .engineside .k{color:#5a6b7d}.dfu-lesson .duo .side h4{font-size:21px;font-weight:700;margin:.4em 0;color:var(--ink)}.dfu-lesson .duo .side p{margin:0;font-size:15.5px;line-height:1.55;color:#3a3a3d}.dfu-lesson .pq{font-size:clamp(21px,3.1vw,28px);line-height:1.28;font-weight:700;letter-spacing:0;margin:18px 0;color:var(--ink)}.dfu-lesson .callout{border-radius:8px;padding:17px 20px;margin:20px 0;font-size:15.5px;line-height:1.55}.dfu-lesson .callout .lab{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px}.dfu-lesson .callout.input{background:#fff6e6;border:1px solid #F6E1B0}.dfu-lesson .callout.input .lab{color:#b9810f}.dfu-lesson .callout.note{background:var(--surface);border:1px solid var(--line)}.dfu-lesson .callout.note .lab{color:var(--muted)}.dfu-lesson .callout.tip{background:var(--blue-soft);border:1px solid #cfe6ff}.dfu-lesson .callout.tip .lab{color:var(--blue2)}.dfu-lesson .callout.bottom{background:#0f1b2d;color:#dfe9f7}.dfu-lesson .callout.bottom .lab{color:#46a5fc}.dfu-lesson .callout.bottom strong{color:#fff}.dfu-lesson .quick{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:26px 28px}.dfu-lesson .quick ol{margin:14px 0 0;padding:0;counter-reset:q;list-style:none}.dfu-lesson .quick li{position:relative;padding:12px 0 12px 46px;border-bottom:1px solid var(--line);line-height:1.5;font-size:15.5px}.dfu-lesson .quick li:last-child{border-bottom:0}.dfu-lesson .quick li:before{counter-increment:q;content:counter(q);position:absolute;left:0;top:11px;width:30px;height:30px;border-radius:50%;background:var(--blue-soft);color:var(--blue2);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}.dfu-lesson .flowline{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:20px}.dfu-lesson .flowline .step{position:relative;min-height:138px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:15px 13px;box-shadow:var(--shadow-sm)}.dfu-lesson .flowline .step:after{content:"";position:absolute;right:-7px;top:50%;width:8px;height:8px;border-top:2px solid var(--blue);border-right:2px solid var(--blue);transform:translateY(-50%) rotate(45deg);background:#fff}.dfu-lesson .flowline .step:last-child:after{display:none}.dfu-lesson .flowline .k{font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .flowline .v{font-size:14px;font-weight:700;line-height:1.25;margin-top:6px;color:var(--ink)}.dfu-lesson .flowline .s{font-size:11.5px;line-height:1.4;color:var(--muted);margin-top:8px}@media (max-width:900px){.dfu-lesson .flowline{grid-template-columns:repeat(2,1fr)}.dfu-lesson .flowline .step:after{display:none}.dfu-lesson .flowline .step:last-child{grid-column:1/-1}}@media (max-width:560px){.dfu-lesson .flowline{grid-template-columns:1fr}.dfu-lesson .flowline .step{min-height:auto}.dfu-lesson .flowline .step:after{display:none}}.dfu-lesson .baseline-loop{border:1px solid var(--line);border-radius:14px;background:#fff;padding:22px;box-shadow:var(--shadow)}.dfu-lesson .baseline-loop .bl-head{display:flex;justify-content:space-between;gap:20px;align-items:baseline;margin-bottom:17px}.dfu-lesson .baseline-loop .bl-head strong{font-size:18px;color:var(--ink)}.dfu-lesson .baseline-loop .bl-head span{font-size:12px;color:var(--muted);text-align:right}.dfu-lesson .baseline-grid{display:grid;grid-template-columns:minmax(0,.9fr) 34px minmax(0,1.1fr) 34px minmax(0,.9fr);align-items:stretch;gap:8px}.dfu-lesson .baseline-node{border:1px solid var(--line);border-radius:11px;background:#f7f8fa;padding:17px;min-height:170px}.dfu-lesson .baseline-node.truth{background:#0e1a29;border-color:#1f4269;color:#fff}.dfu-lesson .baseline-node .bl-k{font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .baseline-node.truth .bl-k{color:#46a5fc}.dfu-lesson .baseline-node h4{font-size:16px;line-height:1.25;margin:7px 0 11px;color:inherit}.dfu-lesson .baseline-node p{font-size:12px;line-height:1.48;color:var(--ink2);margin:10px 0 0}.dfu-lesson .baseline-node.truth p{color:#ffffff9e}.dfu-lesson .bl-chips{display:flex;flex-wrap:wrap;gap:6px}.dfu-lesson .bl-chips span{display:inline-flex;border-radius:999px;background:#fff;border:1px solid var(--line);padding:5px 8px;font-size:10.5px;color:var(--ink2);font-weight:600}.dfu-lesson .truth .bl-chips span{background:#ffffff14;border-color:#ffffff24;color:#fff}.dfu-lesson .baseline-arrow{display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:25px;font-weight:700}.dfu-lesson .baseline-loop .bl-bottom{margin-top:14px;border-radius:9px;background:var(--blue-soft);border:1px solid #cfe6ff;padding:11px 14px;text-align:center;font-size:12.5px;color:var(--ink2)}@media (max-width:700px){.dfu-lesson .baseline-loop .bl-head{display:block}.dfu-lesson .baseline-loop .bl-head span{display:block;text-align:left;margin-top:4px}.dfu-lesson .baseline-grid{grid-template-columns:1fr}.dfu-lesson .baseline-arrow{transform:rotate(90deg);height:22px}.dfu-lesson .baseline-node{min-height:auto}}.dfu-lesson .corepath{margin-top:20px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:16px 18px;max-width:560px;box-shadow:var(--shadow)}.dfu-lesson .corepath .cp-k{font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .corepath .cp-lead{font-size:13.5px;line-height:1.5;color:var(--ink2);margin:7px 0 12px}.dfu-lesson .corepath .cp-lead strong{color:var(--ink)}.dfu-lesson .cp-steps{display:flex;flex-wrap:wrap;gap:6px}.dfu-lesson .cp-step{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:999px;background:#fbfcfe;padding:6px 12px;font:inherit;font-size:12.5px;color:var(--ink2);cursor:pointer;text-align:left}.dfu-lesson .cp-step:hover{border-color:var(--blue);color:var(--ink);background:#fff}.dfu-lesson .cp-step .cp-n{font-weight:700;font-size:10.5px;color:var(--blue2);letter-spacing:.04em}.dfu-lesson .cp-step .cp-min{color:var(--muted);font-size:11.5px}.dfu-lesson .cp-step.done{background:#f5f9ff;border-color:#cfe6ff}.dfu-lesson .cp-step.done .cp-n{color:var(--good)}.dfu-lesson .corepath .cp-rest{font-size:12px;line-height:1.5;color:var(--muted);margin:12px 0 0}@media (max-width:640px){.dfu-lesson .corepath{padding:14px}.dfu-lesson .cp-step{font-size:12px;padding:7px 11px}}.dfu-lesson .score-model{max-width:680px;margin-left:auto;margin-right:auto;border:1px solid var(--line);border-radius:14px;background:#fff;padding:22px;box-shadow:var(--shadow)}.dfu-lesson .score-model .sm-k{font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .score-overall{margin-top:10px;border-radius:12px;background:#0e1a29;color:#fff;padding:18px 20px;display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:center}.dfu-lesson .score-overall .grade{font-size:60px;line-height:.9;font-weight:700;color:var(--blue)}.dfu-lesson .score-overall strong{display:block;font-size:17px}.dfu-lesson .score-overall span{display:block;color:#ffffff94;font-size:12px;margin-top:2px}.dfu-lesson .score-scale{height:5px;border-radius:99px;background:linear-gradient(90deg,#d9e0e7,#9dc9f5 62%,#46a5fc);position:relative;margin-top:10px}.dfu-lesson .score-scale:after{content:"";position:absolute;left:88%;top:50%;width:11px;height:11px;border-radius:50%;background:#fff;border:3px solid var(--blue);transform:translate(-50%,-50%)}.dfu-lesson .score-domains{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.dfu-lesson .score-domain{border:1px solid var(--line);border-radius:11px;padding:15px 16px;background:#f7f8fa;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.dfu-lesson .score-domain.frame{background:var(--blue-soft);border-color:#cfe6ff}.dfu-lesson .score-domain .name{font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink2)}.dfu-lesson .score-domain .what{font-size:11.5px;color:var(--muted);margin-top:3px}.dfu-lesson .score-domain .letter{font-size:31px;line-height:1;font-weight:750;color:var(--ink)}.dfu-lesson .score-domain.frame .letter{color:var(--blue2)}.dfu-lesson .score-formula{margin-top:11px;text-align:center;font-size:12px;color:var(--muted)}.dfu-lesson .score-formula strong{color:var(--ink)}@media (max-width:500px){.dfu-lesson .score-model{padding:15px}.dfu-lesson .score-domains{grid-template-columns:1fr}.dfu-lesson .score-overall .grade{font-size:48px}}.dfu-lesson .domain-map{border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px;box-shadow:var(--shadow)}.dfu-lesson .domain-map .dm-head{display:flex;justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:14px}.dfu-lesson .domain-map .dm-head strong{font-size:17px;color:var(--ink)}.dfu-lesson .domain-map .dm-head span{font-size:11.5px;color:var(--muted);text-align:right}.dfu-lesson .domain-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dfu-lesson .domain-card{border-radius:12px;border:1px solid var(--line);background:#f3f5f8;padding:18px;display:flex;flex-direction:column}.dfu-lesson .domain-card.frame{background:var(--blue-soft);border-color:#cfe6ff}.dfu-lesson .domain-card .dc-k{font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#617083}.dfu-lesson .domain-card.frame .dc-k{color:var(--blue2)}.dfu-lesson .domain-card h4{font-size:19px;margin:6px 0 7px;color:var(--ink)}.dfu-lesson .domain-card .dc-answer{font-size:13px;line-height:1.48;color:var(--ink2);margin:0 0 12px}.dfu-lesson .domain-metrics{display:flex;flex-wrap:wrap;gap:6px}.dfu-lesson .domain-metrics span{border-radius:999px;background:#fff;border:1px solid rgba(0,0,0,.06);padding:6px 9px;font-size:10.5px;font-weight:600;color:var(--ink2)}.dfu-lesson .domain-value{margin-top:14px;padding-top:12px;border-top:1px solid rgba(0,0,0,.08)}.dfu-lesson .domain-value b{display:block;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .domain-value span{display:block;font-size:12px;color:var(--ink2);line-height:1.45;margin-top:4px}.dfu-lesson .domain-audience{margin-top:9px;font-size:10.5px;line-height:1.45;color:var(--muted)}.dfu-lesson .domain-audience strong{color:var(--ink2)}.dfu-lesson .domain-join{margin:12px auto 0;max-width:490px;border-radius:999px;background:#0e1a29;color:#fff;padding:12px 18px;display:flex;justify-content:center;gap:9px;align-items:center;font-size:12px;text-align:center}.dfu-lesson .domain-join strong{color:var(--blue);font-size:14px}@media (max-width:660px){.dfu-lesson .domain-map .dm-head{display:block}.dfu-lesson .domain-map .dm-head span{display:block;text-align:left;margin-top:4px}.dfu-lesson .domain-cards{grid-template-columns:1fr}.dfu-lesson .domain-join{border-radius:12px;display:block}.dfu-lesson .domain-join strong{display:block;margin-bottom:3px}}.dfu-lesson .mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}.dfu-lesson .mode-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:var(--shadow-sm)}.dfu-lesson .mode-card .k{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:10px}.dfu-lesson .mode-card h3{font-size:21px;margin:0 0 8px;letter-spacing:0}.dfu-lesson .mode-card p{font-size:14.5px;color:var(--ink2);line-height:1.55;margin:0 0 14px}.dfu-lesson .mode-card a{display:inline-flex;margin:4px 5px 0 0;border:1px solid #cfe6ff;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;text-decoration:none;background:var(--blue-soft)}@media (max-width:860px){.dfu-lesson .mode-grid{grid-template-columns:1fr}}.dfu-lesson .visual-banner{margin:30px 0;border-radius:8px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}.dfu-lesson .visual-banner img{display:block;width:100%;height:auto}.dfu-lesson .visual-banner figcaption{padding:0 18px 18px}.dfu-lesson .report-board{margin:30px 0;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.dfu-lesson .report-board .board-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;padding:18px;background:#fff}.dfu-lesson .report-board .board-stack{display:grid;gap:16px;align-content:start}.dfu-lesson .report-board img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow-sm)}.dfu-lesson .report-board figcaption{padding:0 18px 18px;margin-top:0}.dfu-lesson .signal-board .board-grid{grid-template-columns:.92fr 1.08fr}.dfu-lesson .signal-panel{display:grid;gap:16px;align-content:start}.dfu-lesson .signal-panel .actual-label{border:1px solid #cfe6ff;border-radius:8px;background:var(--blue-soft);padding:18px 20px}.dfu-lesson .signal-panel .actual-label .k{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:8px}.dfu-lesson .signal-panel .actual-label p{font-size:14.5px;line-height:1.55;margin:0;color:var(--ink2)}.dfu-lesson .noise-signal .ns-grid{display:grid;grid-template-columns:minmax(0,.9fr) auto minmax(260px,1.1fr);align-items:start;background:#0b0b0c;border-radius:18px;padding:26px 28px;box-shadow:var(--shadow)}.dfu-lesson .ns-arrow{align-self:center}.dfu-lesson .ns-k{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#5b606b;margin-bottom:14px}.dfu-lesson .ns-k.blue{color:var(--blue)}.dfu-lesson .ns-chips{display:flex;flex-wrap:wrap;gap:8px}.dfu-lesson .ns-chips span{font-size:12.5px;font-weight:600;color:#fff9;border:1px solid rgba(255,255,255,.17);border-radius:999px;padding:5px 12px;white-space:nowrap}.dfu-lesson .ns-chips span:nth-child(2n){opacity:.8}.dfu-lesson .ns-chips span:nth-child(3n){opacity:.6}.dfu-lesson .ns-note{font-size:12.5px;color:#ffffff73;margin:14px 0 0;line-height:1.5}.dfu-lesson .ns-arrow{color:var(--blue);font-size:26px;font-weight:700;padding:0 24px}.dfu-lesson .ns-measures{display:grid;gap:9px}.dfu-lesson .ns-measure{border:1px solid rgba(255,255,255,.13);border-radius:12px;background:#141416;overflow:hidden}.dfu-lesson .ns-measure.dexa{display:grid;grid-template-columns:minmax(118px,1.2fr) minmax(120px,.8fr);align-items:stretch}.dfu-lesson .ns-strip{min-height:112px;background:#000;overflow:hidden}.dfu-lesson .ns-strip img{display:block;width:100%;height:100%;min-height:112px;-o-object-fit:contain;object-fit:contain}.dfu-lesson .ns-measure-copy{padding:14px 15px;display:flex;flex-direction:column;justify-content:center}.dfu-lesson .ns-measure-copy span{font-size:10.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--blue)}.dfu-lesson .ns-measure-copy strong{font-size:13px;line-height:1.38;color:#fff;margin-top:5px}.dfu-lesson .ns-measure.vo2{display:block}.dfu-lesson .ns-proof{display:flex;align-items:center;gap:8px;margin-top:12px;color:#ffffff94;font-size:11.5px;line-height:1.45}.dfu-lesson .ns-proof:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px #46a5fc1f;flex:none}@media (max-width:640px){.dfu-lesson .noise-signal .ns-grid{grid-template-columns:1fr;gap:18px}.dfu-lesson .ns-arrow{transform:rotate(90deg);padding:0;justify-self:center}}@media (max-width:430px){.dfu-lesson .ns-measure.dexa{grid-template-columns:1fr}.dfu-lesson .ns-strip,.dfu-lesson .ns-strip img{min-height:150px}}.dfu-lesson .hunger-visual{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:#111;box-shadow:var(--shadow)}.dfu-lesson .hunger-visual img{display:block;width:100%;height:auto}.dfu-lesson .hunger-keys{display:grid;grid-template-columns:repeat(3,1fr);background:#111;border-top:1px solid rgba(255,255,255,.12)}.dfu-lesson .hunger-key{padding:13px 16px;text-align:center;color:#fff;border-right:1px solid rgba(255,255,255,.12)}.dfu-lesson .hunger-key:last-child{border-right:0}.dfu-lesson .hunger-key span{display:block;color:var(--blue);font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:3px}.dfu-lesson .hunger-key strong{font-size:13px;font-weight:600}.dfu-lesson .hunger-visual figcaption{padding:0 18px 18px;color:#ffffffb3}@media (max-width:560px){.dfu-lesson .hunger-key{padding:11px 7px}.dfu-lesson .hunger-key strong{font-size:11.5px}}.dfu-lesson .pheno-visual{border:1px solid var(--line);border-radius:14px;background:#fff;padding:22px;box-shadow:var(--shadow)}.dfu-lesson .pheno-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:15px}.dfu-lesson .pheno-top strong{font-size:16px;color:var(--ink)}.dfu-lesson .pheno-top span{font-size:12px;color:var(--muted);text-align:right}.dfu-lesson .pheno-map{display:grid;grid-template-columns:36px 1fr;gap:10px;align-items:stretch}.dfu-lesson .pheno-y{writing-mode:vertical-rl;transform:rotate(180deg);display:flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--ink2)}.dfu-lesson .pheno-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.dfu-lesson .ph-cell{-moz-appearance:none;appearance:none;-webkit-appearance:none;min-height:148px;border:1px solid var(--line2);border-radius:10px;background:#f6f7f9;padding:18px;text-align:left;font-family:inherit;cursor:pointer;color:var(--ink);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease}.dfu-lesson .ph-cell:hover{transform:translateY(-2px);border-color:#a9d3fb;box-shadow:var(--shadow-sm)}.dfu-lesson .ph-cell:focus-visible{outline:3px solid rgba(70,165,252,.3);outline-offset:2px}.dfu-lesson .ph-cell.current{background:#0d1b2a;border-color:#46a5fc;box-shadow:0 12px 30px #1637582e;color:#fff}.dfu-lesson .ph-cell .ph-k{display:block;font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:8px}.dfu-lesson .ph-cell.current .ph-k{color:#46a5fc}.dfu-lesson .ph-cell strong{display:block;font-size:16px;line-height:1.3}.dfu-lesson .ph-cell small{display:block;font-size:11.5px;line-height:1.45;color:var(--muted);margin-top:8px}.dfu-lesson .ph-cell.current small{color:#ffffff9e}.dfu-lesson .pheno-x{margin:10px 0 0 46px;text-align:center;font-size:10.5px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--ink2)}.dfu-lesson .pheno-axis-ends{margin:3px 0 16px 46px;display:flex;justify-content:space-between;font-size:10.5px;color:var(--muted)}.dfu-lesson .pheno-detail{margin-left:46px;border-radius:10px;background:var(--blue-soft);padding:16px 18px;border:1px solid #cfe6ff;display:grid;grid-template-columns:minmax(135px,.7fr) minmax(0,1.3fr);gap:8px 20px;align-items:start}.dfu-lesson .pheno-detail .pd-k{grid-column:1/-1;font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .pheno-detail .pd-title{font-size:15px;line-height:1.35}.dfu-lesson .pheno-detail .pd-focus{font-size:13px;line-height:1.5;margin:0;color:var(--ink2)}.dfu-lesson .pheno-detail .pd-line{grid-column:1/-1;margin:2px 0 0;padding-top:10px;border-top:1px solid #cfe6ff;font-size:13px;font-style:italic;color:var(--ink2)}@media (max-width:600px){.dfu-lesson .pheno-visual{padding:15px}.dfu-lesson .pheno-top{display:block}.dfu-lesson .pheno-top span{display:block;text-align:left;margin-top:4px}.dfu-lesson .pheno-map{grid-template-columns:24px 1fr}.dfu-lesson .pheno-grid{gap:6px}.dfu-lesson .ph-cell{min-height:132px;padding:13px}.dfu-lesson .ph-cell strong{font-size:13.5px}.dfu-lesson .ph-cell small{font-size:10.5px}.dfu-lesson .pheno-x,.dfu-lesson .pheno-axis-ends,.dfu-lesson .pheno-detail{margin-left:34px}.dfu-lesson .pheno-detail{grid-template-columns:1fr}}.dfu-lesson .journey-visual{border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px;box-shadow:var(--shadow);overflow:hidden}.dfu-lesson .journey-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}.dfu-lesson .journey-head strong{font-size:17px;color:var(--ink)}.dfu-lesson .journey-head span{font-size:11.5px;color:var(--muted)}.dfu-lesson .journey-tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:15px}.dfu-lesson .journey-tab{-moz-appearance:none;appearance:none;-webkit-appearance:none;border:1px solid var(--line2);border-radius:999px;background:#fff;color:var(--ink2);font-family:inherit;font-size:11.5px;font-weight:600;padding:7px 11px;cursor:pointer}.dfu-lesson .journey-tab:hover{border-color:#9dccf8}.dfu-lesson .journey-tab:focus-visible{outline:3px solid rgba(70,165,252,.3);outline-offset:2px}.dfu-lesson .journey-tab.current{background:var(--ink);color:#fff;border-color:var(--ink)}.dfu-lesson .journey-visual svg{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:10px;background:#fff}.dfu-lesson .journey-mobile-axis{display:none}.dfu-lesson .journey-layer{opacity:0;transition:opacity .22s ease;pointer-events:none}.dfu-lesson .journey-layer.active{opacity:1}.dfu-lesson .journey-legacy{display:none!important}.dfu-lesson .journey-detail{margin-top:13px;border-radius:10px;background:#f6f7f9;padding:14px 16px;display:grid;grid-template-columns:minmax(150px,.7fr) minmax(0,1.3fr);gap:14px;align-items:center}.dfu-lesson .journey-detail strong{font-size:14px}.dfu-lesson .journey-detail span{font-size:12.5px;color:var(--ink2);line-height:1.5}@media (max-width:600px){.dfu-lesson .journey-visual{padding:14px}.dfu-lesson .journey-head{display:block}.dfu-lesson .journey-head span{display:block;margin-top:3px}.dfu-lesson .journey-tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.dfu-lesson .journey-tab{white-space:nowrap}.dfu-lesson .journey-map-labels{visibility:hidden}.dfu-lesson .journey-mobile-axis{display:flex;justify-content:space-between;margin-top:8px;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}.dfu-lesson .journey-detail{grid-template-columns:1fr;gap:5px}}.dfu-lesson .anatomy360{border:1px solid var(--line);border-radius:14px;background:#0d1014;padding:24px;box-shadow:var(--shadow);overflow:hidden}.dfu-lesson .anatomy360 .a-k{font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}.dfu-lesson .anatomy360 .a-title{font-size:21px;line-height:1.2;color:#fff;font-weight:700;margin:5px 0 18px}.dfu-lesson .anatomy-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(190px,1.1fr) minmax(0,.9fr);gap:12px;align-items:center}.dfu-lesson .anatomy-stack{display:grid;gap:10px}.dfu-lesson .anatomy-card{min-height:78px;border:1px solid rgba(255,255,255,.13);border-radius:10px;background:#ffffff0d;padding:12px 13px;position:relative}.dfu-lesson .anatomy-card .n{position:absolute;right:10px;top:9px;font-size:20px;font-weight:700;color:#46a5fc47}.dfu-lesson .anatomy-card strong{display:block;font-size:12.5px;color:#fff;padding-right:20px}.dfu-lesson .anatomy-card span{display:block;font-size:10.5px;line-height:1.4;color:#ffffff80;margin-top:4px}.dfu-lesson .anatomy-body{border:1px solid rgba(70,165,252,.25);border-radius:13px;background:#000;padding:10px;box-shadow:0 0 40px #46a5fc14}.dfu-lesson .anatomy-body img{display:block;width:100%;height:auto;max-height:285px;-o-object-fit:contain;object-fit:contain}.dfu-lesson .anatomy360 figcaption{color:#ffffffa6;padding:0 12px;margin-top:17px}@media (max-width:700px){.dfu-lesson .anatomy-grid{grid-template-columns:1fr}.dfu-lesson .anatomy-body{grid-column:1;grid-row:1}.dfu-lesson .anatomy-stack{grid-template-columns:1fr 1fr}.dfu-lesson .anatomy-stack:first-child{grid-row:2}.dfu-lesson .anatomy-stack:last-child{grid-row:3}.dfu-lesson .anatomy-card{min-height:72px}.dfu-lesson .anatomy360 .a-title{font-size:18px}}@media (max-width:460px){.dfu-lesson .anatomy-stack{grid-template-columns:1fr}}.dfu-lesson .heat-decoder{margin:18px 0 24px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px 22px;box-shadow:var(--shadow-sm)}.dfu-lesson .heat-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:14px}.dfu-lesson .heat-head .k{font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .heat-head strong{font-size:15px;color:var(--ink);text-align:right}.dfu-lesson .heat-scale{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center}.dfu-lesson .heat-scale span{font-size:10.5px;font-weight:700;color:var(--ink2)}.dfu-lesson .heat-bar{height:15px;border-radius:999px;background:linear-gradient(90deg,#e4493f,#f4b33d,#a8d84e,#45d2c3 72%,#3b7bee);box-shadow:inset 0 0 0 1px #0000001a;position:relative}.dfu-lesson .heat-bar:after{content:"50th";position:absolute;left:50%;top:20px;transform:translate(-50%);font-size:9.5px;color:var(--muted)}.dfu-lesson .heat-meaning{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:27px}.dfu-lesson .heat-rule{border-radius:9px;background:#f6f7f9;padding:12px 13px}.dfu-lesson .heat-rule strong{display:block;font-size:12.5px}.dfu-lesson .heat-rule span{display:block;font-size:11px;color:var(--muted);margin-top:4px}.dfu-lesson .heat-rule .dir{color:var(--blue2);font-weight:700}.dfu-lesson .heat-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}.dfu-lesson .heat-step{border-top:1px solid var(--line);padding-top:10px;font-size:11px;color:var(--ink2);line-height:1.4}.dfu-lesson .heat-step b{display:inline-flex;width:19px;height:19px;border-radius:50%;align-items:center;justify-content:center;background:var(--blue-soft);color:var(--blue2);font-size:10px;margin-right:5px}@media (max-width:560px){.dfu-lesson .heat-head{display:block}.dfu-lesson .heat-head strong{display:block;text-align:left;margin-top:5px}.dfu-lesson .heat-meaning,.dfu-lesson .heat-steps{grid-template-columns:1fr}.dfu-lesson .heat-scale{gap:7px}}@media (prefers-reduced-motion:reduce){.dfu-lesson .ph-cell,.dfu-lesson .journey-layer{transition:none}}.dfu-lesson .pow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.dfu-lesson .pow{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}.dfu-lesson .pow .k{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue2);margin-bottom:6px}.dfu-lesson .pow p{font-size:13px;color:var(--ink2);margin:0;line-height:1.45}@media (max-width:640px){.dfu-lesson .pow-grid{grid-template-columns:repeat(2,1fr)}}.dfu-lesson .dchart{margin:26px 0}.dfu-lesson .dchart .ch-head{font-weight:600;font-size:16.5px;color:var(--ink)}.dfu-lesson .dchart .ch-sub{font-size:12.5px;color:var(--muted);margin:2px 0 14px}.dfu-lesson .dchart .mini-t{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}.dfu-lesson .dchart svg{width:100%;height:auto;display:block}.dfu-lesson .dchart .grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px 30px}@media (max-width:640px){.dfu-lesson .dchart .grid2{grid-template-columns:1fr}}.dfu-lesson .sexsplit{display:flex;align-items:center;justify-content:center;gap:28px;height:100%;min-height:170px}.dfu-lesson .sexsplit .n{font-size:46px;font-weight:700;line-height:1;color:var(--ink)}.dfu-lesson .sexsplit .l{display:block;font-size:11.5px;color:var(--muted);font-weight:600;margin-top:6px;text-transform:uppercase;letter-spacing:.1em}.dfu-lesson .sexsplit .div{width:1px;height:60px;background:var(--line2)}.dfu-lesson .theme{display:flex;gap:12px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line)}.dfu-lesson .theme:last-child{border-bottom:0}.dfu-lesson .theme .rk{flex:none;width:22px;height:22px;border-radius:50%;background:var(--blue-soft);color:var(--blue2);font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center}.dfu-lesson .theme .tt{font-weight:600;font-size:14.5px}.dfu-lesson .theme .tw{color:var(--muted);font-size:12.5px;margin-left:auto;text-align:right}.dfu-lesson .ncard{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px;display:flex;align-items:baseline;gap:14px}.dfu-lesson .ncard .nk{font-size:12px;font-weight:600;color:var(--ink2);flex:1}.dfu-lesson .ncard .nv{font-size:11px;color:var(--muted)}.dfu-lesson .ncard .nv b{font-size:17px;font-weight:700;color:var(--ink);margin-right:4px}.dfu-lesson .ncard .nv.hi b{color:var(--blue2)}@media (max-width:820px){.dfu-lesson .report-board .board-grid,.dfu-lesson .signal-board .board-grid{grid-template-columns:1fr}}.dfu-lesson .field-note{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:20px 0}.dfu-lesson .field-note .card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 20px;box-shadow:var(--shadow-sm)}.dfu-lesson .field-note .k{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:7px}.dfu-lesson .field-note p{font-size:14.5px;line-height:1.55;color:var(--ink2);margin:0}@media (max-width:720px){.dfu-lesson .field-note{grid-template-columns:1fr}}.dfu-lesson .fit-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0}.dfu-lesson .fit-matrix .fit{border:1px solid var(--line);border-radius:8px;background:#fff;padding:15px;box-shadow:var(--shadow-sm)}.dfu-lesson .fit-matrix .rank{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;font-size:13px;font-weight:700;margin-bottom:10px}.dfu-lesson .fit-matrix h4{font-size:15px;line-height:1.25;margin:0 0 7px;color:var(--ink)}.dfu-lesson .fit-matrix p{font-size:13px;line-height:1.45;color:var(--ink2);margin:0}.dfu-lesson .fit-matrix .top{border-color:#b7dcff;background:var(--blue-tint)}@media (max-width:900px){.dfu-lesson .fit-matrix{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.dfu-lesson .fit-matrix{grid-template-columns:1fr}}.dfu-lesson .commission{border:1.5px dashed #bcd6f5;border-radius:8px;padding:20px;margin:24px 0;background:var(--blue-tint)}.dfu-lesson .commission .badge{font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue2);border:1px solid #bcd6f5;border-radius:6px;padding:3px 9px;background:#fff;display:inline-block;margin-bottom:8px}.dfu-lesson .commission .desc{font-size:14px;color:var(--ink2);margin:0}.dfu-lesson .vs{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch;margin:10px 0}@media (max-width:680px){.dfu-lesson .vs{grid-template-columns:1fr}}.dfu-lesson .vs .panel{border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:var(--shadow-sm);background:#fff;display:flex;flex-direction:column}.dfu-lesson .vs .cap{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:10px 14px;border-bottom:1px solid var(--line)}.dfu-lesson .vs .cap.dim{color:var(--muted);background:var(--surface)}.dfu-lesson .vs .cap.brand{color:var(--blue2);background:var(--blue-soft)}.dfu-lesson .vs .printout{padding:14px 16px 16px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:10.5px;line-height:1.8;color:#6f6f6f;background:#fcfcfc;flex:1}.dfu-lesson .vs .printout .ttl{font-family:Poppins,sans-serif;font-size:12px;font-weight:700;color:#4a4a4a;margin-bottom:8px;letter-spacing:0;text-transform:none}.dfu-lesson .vs .printout .rl{display:flex;justify-content:space-between;border-bottom:1px dotted #e6e6e6}.dfu-lesson .vs .printout .fine{margin-top:12px;font-size:8.5px;line-height:1.55;color:#a6a6a6}.dfu-lesson .vs .shotwrap img{width:100%;height:auto;display:block}.dfu-lesson .vs .ftr{font-size:9px;color:#b0b0b0;padding:7px 14px;border-top:1px solid var(--line);font-family:ui-monospace,monospace;text-align:right}.dfu-lesson table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}.dfu-lesson th,.dfu-lesson td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.45}.dfu-lesson thead th{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:700;border-bottom:1.5px solid var(--line2)}.dfu-lesson tbody tr:last-child td{border-bottom:0}.dfu-lesson .t-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;padding:2px 18px;margin:20px 0;box-shadow:var(--shadow-sm)}.dfu-lesson .toc{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}@media (max-width:780px){.dfu-lesson .toc{grid-template-columns:1fr}}.dfu-lesson .toc .pcat{grid-column:1/-1;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:18px 0 2px}.dfu-lesson .toc a{display:flex;gap:12px;padding:11px 4px;border-bottom:1px solid var(--line);color:var(--ink);align-items:baseline;font-weight:500}.dfu-lesson .toc a:hover{color:var(--blue)}.dfu-lesson .toc .tn{font-variant-numeric:tabular-nums;color:var(--blue);font-weight:700;min-width:22px}.dfu-lesson ul.clean{list-style:none;padding:0;margin:1em 0}.dfu-lesson ul.clean li{position:relative;padding:8px 0 8px 26px;border-bottom:1px solid var(--line);line-height:1.5}.dfu-lesson ul.clean li:last-child{border-bottom:0}.dfu-lesson ul.clean li:before{content:"";position:absolute;left:3px;top:16px;width:7px;height:7px;border-radius:50%;background:var(--blue)}.dfu-lesson .faq h4{margin:1.4em 0 .2em;color:var(--ink);font-size:16px}.dfu-lesson .faq p{color:var(--ink2)}.dfu-lesson .frame-steps{display:grid;gap:10px;margin:20px 0}.dfu-lesson .frame-steps .fs{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px;box-shadow:var(--shadow-sm)}.dfu-lesson .frame-steps .L{flex:none;width:40px;height:40px;border-radius:8px;background:var(--blue);color:#fff;font-weight:700;font-size:21px;display:flex;align-items:center;justify-content:center}.dfu-lesson .frame-steps .stage{display:block;font-size:9px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:2px}.dfu-lesson .frame-steps .ft{font-weight:700;color:var(--ink);font-size:16px}.dfu-lesson .frame-steps .fd{font-size:14.5px;color:var(--ink2);line-height:1.5}.dfu-lesson .case{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px 22px;box-shadow:var(--shadow-sm);margin:14px 0}.dfu-lesson .case .ct{font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue2);margin-bottom:8px}.dfu-lesson .case .move{font-size:15px;margin:0 0 10px}.dfu-lesson .case .grades{display:inline-flex;gap:8px;flex-wrap:wrap;margin:0 0 10px}.dfu-lesson .case .gr{font-size:12.5px;font-weight:700;border-radius:8px;padding:4px 10px;background:var(--surface);border:1px solid var(--line)}.dfu-lesson .case .script{font-size:14.5px;font-style:italic;color:var(--ink2);border-left:3px solid var(--blue);padding-left:14px;margin:0}.dfu-lesson .snap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:14px 0 16px}.dfu-lesson .snap .col{flex:1;min-width:172px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px;text-align:center;box-shadow:var(--shadow-sm)}.dfu-lesson .snap .when{font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.dfu-lesson .snap .big{font-size:46px;font-weight:700;color:var(--blue);line-height:1}.dfu-lesson .snap .ov{font-size:11.5px;font-weight:600;color:var(--ink2);margin-top:2px}.dfu-lesson .snap .ruler{position:relative;height:9px;border-radius:5px;margin:12px 6px 4px;background:linear-gradient(90deg,#9aa3ad,#f5a623 38%,#46a5fc 68%,#46a5fc)}.dfu-lesson .snap .ruler .mk{position:absolute;top:-4px;width:3px;height:17px;border-radius:2px;background:#1d1d1f;transform:translate(-50%)}.dfu-lesson .snap .subs{display:flex;gap:10px;justify-content:center;margin-top:12px;border-top:1px solid var(--line);padding-top:10px}.dfu-lesson .snap .sub{flex:1}.dfu-lesson .snap .sl{font-size:21px;font-weight:700;color:var(--ink);line-height:1}.dfu-lesson .snap .sk{font-size:10px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;margin-top:3px}.dfu-lesson .snap .arrow{font-size:26px;color:var(--blue);font-weight:700;flex:none}@media (max-width:600px){.dfu-lesson .snap .arrow{display:none}}.dfu-lesson .takeaway{font-size:16px;line-height:1.5;margin:2px 0 4px;color:var(--ink2)}.dfu-lesson .takeaway .hl{color:var(--blue)}.dfu-lesson .cmp{border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:14px 0;box-shadow:var(--shadow-sm)}.dfu-lesson .cmp .row{display:grid;grid-template-columns:1.5fr 1fr 1fr;align-items:center;padding:9px 16px;border-top:1px solid var(--line);font-size:14.5px}.dfu-lesson .cmp .row:first-child{border-top:0}.dfu-lesson .cmp .head{background:var(--surface);font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .cmp .head span:first-child{color:#3a3a3c}.dfu-lesson .cmp .m,.dfu-lesson .cmp .v{color:var(--ink2)}.dfu-lesson .cmp .now{font-weight:700;color:var(--ink)}.dfu-lesson .cmp .row.score{background:var(--blue-tint)}.dfu-lesson .cmp .row.score .m{font-weight:700;color:var(--ink)}.dfu-lesson .cmp .row.score .now{font-size:15.5px}.dfu-lesson .cmp .up{color:var(--good)}.dfu-lesson .cmp .down{color:var(--bad)}.dfu-lesson footer{padding:44px 26px 76px;color:var(--muted);font-size:13px;text-align:center;background:var(--surface);border-top:1px solid var(--line)}.dfu-lesson footer .logo{margin-bottom:14px}@media print{.dfu-lesson{font-size:11pt}.dfu-lesson .cover{min-height:auto;padding:30px 0}.dfu-lesson .guide-nav{display:none}.dfu-lesson .coverlogo{margin-bottom:18px}.dfu-lesson section{padding:22px 0;-moz-column-break-inside:avoid;break-inside:avoid}.dfu-lesson figure,.dfu-lesson .commission,.dfu-lesson .callout,.dfu-lesson .t-wrap,.dfu-lesson .duo,.dfu-lesson .shot,.dfu-lesson .quick,.dfu-lesson .pagefig,.dfu-lesson .mode-card,.dfu-lesson .field-note .card,.dfu-lesson .report-board{-moz-column-break-inside:avoid;break-inside:avoid}.dfu-lesson .shot,.dfu-lesson .quick{box-shadow:none}.dfu-lesson .part{-moz-column-break-inside:avoid;break-inside:avoid}.dfu-lesson a{color:var(--ink)}}.dfu-lesson.course{display:grid;grid-template-columns:284px minmax(0,1fr)}.dfu-lesson #side{position:sticky;top:0;height:100vh;overflow:hidden;background:var(--surface);border-right:1px solid var(--line);padding:22px 18px 14px;display:flex;flex-direction:column;z-index:40}.dfu-lesson .side-logo{height:22px;width:auto;display:block;margin-bottom:12px}.dfu-lesson .side-title{display:flex;flex-direction:column;gap:3px;line-height:1.15;text-transform:uppercase}.dfu-lesson .side-title .st1{color:var(--blue);font-weight:700;font-size:15px;letter-spacing:.04em}.dfu-lesson .side-title .st2{color:var(--ink2);font-weight:600;font-size:11px;letter-spacing:.22em}.dfu-lesson .progress{height:5px;border-radius:3px;background:var(--line);margin-top:18px;overflow:hidden}.dfu-lesson .progress-fill{height:100%;width:0;border-radius:3px;background:linear-gradient(90deg,var(--blue2),var(--blue));transition:width .3s}.dfu-lesson .progress-label{font-size:11.5px;color:var(--muted);margin-top:7px;font-weight:500;letter-spacing:.01em;line-height:1.35}.dfu-lesson .side-home{cursor:pointer}.dfu-lesson .side-nav{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;display:flex;flex-direction:column;gap:5px;margin-top:14px}.dfu-lesson .side-supp{margin-top:10px;padding-top:12px;border-top:1px solid var(--line)}.dfu-lesson .side-supp-k{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:0 12px 5px}.dfu-lesson .sgroup{border-radius:12px}.dfu-lesson .sg-h{display:flex;align-items:center;width:100%;border:0;background:none;font-family:inherit;text-align:left;font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--ink2);padding:12px;border-radius:10px;cursor:pointer;line-height:1.3}.dfu-lesson .sg-h:hover{background:var(--blue-soft)}.dfu-lesson .sg-h .gl{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dfu-lesson .sg-h .chev{margin-left:auto;flex:none;transition:transform .2s;color:var(--muted)}.dfu-lesson .sgroup.open .sg-h .chev{transform:rotate(180deg)}.dfu-lesson .sgroup.open .sg-h{color:var(--blue2)}.dfu-lesson .sgroup.current-group .sg-h{box-shadow:inset 3px 0 0 var(--blue)}.dfu-lesson .sg-meta{font-size:10.5px;font-weight:700;color:var(--muted);letter-spacing:0;text-transform:none;margin-left:8px;flex:none}.dfu-lesson .sg-meta.alldone{color:var(--good)}.dfu-lesson .sg-items{display:none;padding:2px 0 10px}.dfu-lesson .sgroup.open .sg-items{display:flex;flex-direction:column;gap:2px}@media (prefers-reduced-motion:reduce){.dfu-lesson .sg-h .chev{transition:none}}.dfu-lesson #toTop{position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;border:0;background:var(--blue);color:#fff;cursor:pointer;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s;z-index:50}.dfu-lesson #toTop.showbtn{opacity:1;pointer-events:auto}.dfu-lesson #toTop:hover{background:var(--blue2)}.dfu-lesson .zoomable{cursor:zoom-in}.dfu-lesson .lb{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0a0ce0;z-index:100;padding:30px;align-items:center;justify-content:center;cursor:zoom-out}.dfu-lesson .lb.open{display:flex}.dfu-lesson .lb img{max-width:100%;max-height:100%;border-radius:8px;background:#fff}.dfu-lesson .lb-x{position:absolute;top:14px;right:20px;border:0;background:none;color:#fff;font-size:32px;cursor:pointer;line-height:1;font-family:inherit}.dfu-lesson .hotwrap{position:relative}.dfu-lesson .hot{position:absolute;width:22px;height:22px;border-radius:50%;background:var(--blue);color:#fff;font-size:11.5px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 3px #ffffffd9;transform:translate(-50%,-50%);pointer-events:none}.dfu-lesson .hotkeys{margin:8px 0 12px;display:flex;flex-direction:column;gap:6px}.dfu-lesson .hotkeys .hk{display:flex;gap:9px;font-size:13px;color:var(--ink2);line-height:1.45}.dfu-lesson .hotkeys .hk .n{flex:none;width:18px;height:18px;border-radius:50%;background:var(--blue);color:#fff;font-size:10.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}.dfu-lesson .practice{border:1px solid #cfe6ff;background:var(--blue-soft);border-radius:12px;padding:14px 16px;margin:14px 0}.dfu-lesson .pr-q{font-weight:600;font-size:14.5px;margin-bottom:10px}.dfu-lesson .pr-opts{display:flex;flex-wrap:wrap;gap:8px}.dfu-lesson .pr-opts button{font-family:inherit;font-size:13px;font-weight:500;color:var(--ink2);background:#fff;border:1.5px solid var(--line2);border-radius:999px;padding:8px 14px;cursor:pointer;text-align:left}.dfu-lesson .pr-opts button:hover:not(:disabled){border-color:var(--blue)}.dfu-lesson .pr-opts button.best{border-color:var(--good);color:var(--good);font-weight:600}.dfu-lesson .pr-opts button.pick:not(.best){border-color:var(--amber)}.dfu-lesson .pr-fb{font-size:13px;color:var(--ink2);margin-top:10px;font-style:italic}.dfu-lesson .reveal{display:none}.dfu-lesson .answered .reveal{display:block}.dfu-lesson details.caselib{border:1px solid var(--line);border-radius:12px;padding:0 18px;margin:24px 0;background:#fff}.dfu-lesson details.caselib summary{cursor:pointer;font-weight:600;padding:14px 0;font-size:15px}.dfu-lesson details.caselib[open] summary{border-bottom:1px solid var(--line);margin-bottom:6px}.dfu-lesson .selfcheck{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:0 0 18px;background:#fff}.dfu-lesson .selfcheck .sc-k{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2);margin-bottom:6px}.dfu-lesson .selfcheck .sc-q{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:10px}.dfu-lesson .sc-opts{display:flex;gap:8px;flex-wrap:wrap}.dfu-lesson .sc-opts button{font-family:inherit;font-size:12px;font-weight:600;color:var(--muted);background:none;border:1.5px solid var(--line2);border-radius:999px;padding:6px 13px;cursor:pointer}.dfu-lesson .sc-opts button.on{border-color:var(--blue);color:var(--blue2);background:var(--blue-soft)}.dfu-lesson details.scn{border:1px solid var(--line);border-radius:12px;padding:0 16px;margin:10px 0;background:#fff}.dfu-lesson details.scn summary{cursor:pointer;font-weight:500;font-size:14.5px;padding:13px 0;color:var(--ink)}.dfu-lesson details.scn[open] summary{font-weight:600}.dfu-lesson details.scn .move{padding:10px 0 14px;color:var(--ink2);font-size:14px;border-top:1px solid var(--line)}@media print{.dfu-lesson .lb,.dfu-lesson #toTop,.dfu-lesson .practice,.dfu-lesson .selfcheck{display:none!important}.dfu-lesson .reveal{display:block!important}}.dfu-lesson .side-item{display:flex;align-items:center;gap:11px;width:100%;text-align:left;border:0;background:none;font-family:inherit;font-size:14px;font-weight:500;color:var(--ink2);padding:10px 12px;border-radius:10px;cursor:pointer;line-height:1.3}.dfu-lesson .side-item .ic{flex:none;width:19px;height:19px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:700;border:1.5px solid var(--line2);color:var(--muted);background:#fff}.dfu-lesson .side-item .tt{min-width:0}.dfu-lesson .side-item .mins{margin-left:auto;font-size:11px;color:var(--muted);font-weight:600;flex:none}.dfu-lesson .side-item .trk{display:block;font-size:8.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-top:2px;color:var(--muted)}.dfu-lesson .side-item .trk-core{color:var(--blue2)}.dfu-lesson .side-item .trk-owner{color:#b97f14}.dfu-lesson .side-item:hover{background:var(--blue-soft)}.dfu-lesson .side-item.current{background:var(--blue-soft);color:var(--blue2);font-weight:600;box-shadow:inset 3px 0 0 var(--blue)}.dfu-lesson .side-item.current .ic{border-color:var(--blue);color:var(--blue2)}.dfu-lesson .side-item.done .ic{background:var(--good);border-color:var(--good);color:#fff}.dfu-lesson .linklike{border:0;background:none;font-family:inherit;color:var(--muted);font-size:12.5px;font-weight:600;cursor:pointer;text-decoration:underline;padding:4px}.dfu-lesson .side-foot{padding-top:12px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:7px;align-items:flex-start}.dfu-lesson .foot-link{font-size:12.5px;font-weight:500;color:var(--ink2);text-decoration:none;background:none;border:0;padding:0;cursor:pointer;font-family:inherit;text-align:left}.dfu-lesson .foot-link:hover{color:var(--blue2)}.dfu-lesson .foot-btn{display:inline-flex;font-size:12.5px;font-weight:600;color:var(--blue2);background:var(--blue-soft);border:1px solid #bcdcfd;border-radius:999px;padding:8px 15px;text-decoration:none;margin-bottom:3px}.dfu-lesson .foot-btn:hover{background:#dcedff}.dfu-lesson .foot-links{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:center}.dfu-lesson .foot-links .foot-link{white-space:nowrap}.dfu-lesson .foot-copy{font-size:10.5px;color:var(--muted);line-height:1.4;margin-top:0}.dfu-lesson{scroll-behavior:auto}.dfu-lesson .module:not(.active),.dfu-lesson .view:not(.active){display:none!important}.dfu-lesson .main{min-width:0;overflow-x:hidden}@keyframes pageFwd{0%{opacity:0;transform:translate(46px)}to{opacity:1;transform:none}}@keyframes pageBack{0%{opacity:0;transform:translate(-46px)}to{opacity:1;transform:none}}.dfu-lesson .enter-fwd{animation:pageFwd .3s ease}.dfu-lesson .enter-back{animation:pageBack .3s ease}@media (prefers-reduced-motion:reduce){.dfu-lesson .enter-fwd,.dfu-lesson .enter-back{animation:none}}.dfu-lesson .module .shot,.dfu-lesson .module .case,.dfu-lesson .module .callout,.dfu-lesson .module .report-board,.dfu-lesson .module .quick,.dfu-lesson .module .pq{border-radius:12px}.dfu-lesson .module .case,.dfu-lesson .module .mode-card,.dfu-lesson .module .fit,.dfu-lesson .module .field-note .card{box-shadow:none;border:1px solid var(--line)}.dfu-lesson .module h2,.dfu-lesson #done h2{font-weight:700}.dfu-lesson .module h3,.dfu-lesson .module h4{font-weight:600}.dfu-lesson .module{padding-top:0!important}.dfu-lesson .mhead{background:var(--ink);color:#fff;padding:16px 0;margin-bottom:52px}.dfu-lesson .mhead .wrap{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}.dfu-lesson .mhead .pn{font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--blue)}.dfu-lesson .mhead .pt{font-size:13.5px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.09em}.dfu-lesson .mhead .mmeta{margin-left:auto;font-size:12.5px;color:#ffffffa6;font-weight:600}.dfu-lesson .mfoot{border-top:1px solid var(--line);margin-top:34px;padding:22px 0 48px}.dfu-lesson .mfoot .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.dfu-lesson .sentinel{height:1px}.dfu-lesson .completeBtn{border:0;font-family:inherit;font-weight:700;font-size:15px;color:#fff;background:var(--blue);padding:13px 26px;border-radius:999px;cursor:pointer;box-shadow:var(--shadow-sm)}.dfu-lesson .completeBtn:hover:not(:disabled){background:var(--blue2)}.dfu-lesson .completeBtn:disabled{background:var(--line);color:var(--muted);cursor:default;box-shadow:none}@keyframes btnPop{0%{transform:scale(.92);opacity:.5}60%{transform:scale(1.04)}to{transform:none;opacity:1}}@keyframes btnRise{0%{transform:translateY(10px);opacity:0}to{transform:none;opacity:1}}@keyframes btnGlow{0%{box-shadow:0 0 #46a5fc80}to{box-shadow:0 0 0 16px #46a5fc00}}.dfu-lesson .completeBtn.armed-a{animation:btnPop .38s ease}.dfu-lesson .completeBtn.armed-b{animation:btnRise .38s ease}.dfu-lesson .completeBtn.armed-c{animation:btnGlow .7s ease}@media (prefers-reduced-motion:reduce){.dfu-lesson .completeBtn.armed-a,.dfu-lesson .completeBtn.armed-b,.dfu-lesson .completeBtn.armed-c{animation:none}}.dfu-lesson .cta{cursor:pointer;border:0;font-family:inherit;font-size:15px}.dfu-lesson .cover .cover-eyebrow{background:none;border:0;padding:0;-webkit-backdrop-filter:none;backdrop-filter:none;margin-bottom:18px}.dfu-lesson .brand-rule{height:1px;background:var(--ink);opacity:.16;margin:0}.dfu-lesson .cover h1.stacked{display:flex;flex-direction:column;gap:8px;padding:26px 0;margin:0;line-height:1;text-transform:uppercase}.dfu-lesson .cover h1.stacked .l1{color:var(--blue);font-weight:700;font-size:clamp(28px,3.2vw,44px);letter-spacing:.01em;white-space:nowrap}.dfu-lesson .cover h1.stacked .l2{color:var(--ink2);font-weight:600;font-size:clamp(14px,1.5vw,19px);letter-spacing:.3em}@media (max-width:560px){.dfu-lesson .cover h1.stacked .l1{white-space:normal}}.dfu-lesson .cover .sub{margin-top:22px}.dfu-lesson .cta-primary{display:inline-flex;align-items:center;border:0;font-family:inherit;font-weight:700;font-size:16px;color:#fff;background:var(--blue);padding:15px 34px;border-radius:999px;cursor:pointer;box-shadow:var(--shadow-sm);margin-top:28px}.dfu-lesson .cta-primary:hover{background:var(--blue2)}.dfu-lesson #startMeta{margin-top:14px}.dfu-lesson .hero-stage{position:relative}.dfu-lesson .hero-glow{position:absolute;top:-6%;right:-8%;bottom:-4%;left:-8%;background:radial-gradient(58% 55% at 46% 40%,#46a5fc33,#46a5fc00 72%);pointer-events:none}.dfu-lesson .hero-strip-wrap{width:100%;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);background:#0b0b0c}.dfu-lesson .hero-strip-wrap img{display:block;width:100%;height:auto}@media (max-width:1180px){.dfu-lesson .cover .wide{grid-template-columns:1fr;gap:34px}.dfu-lesson .hero-stage{max-width:520px}}.dfu-lesson .volnote{color:var(--amber);font-weight:600}.dfu-lesson .module h2:focus{outline:none}.dfu-lesson .side-item:focus-visible,.dfu-lesson .completeBtn:focus-visible,.dfu-lesson .linklike:focus-visible,.dfu-lesson .pill:focus-visible,.dfu-lesson .rp-card:focus-visible,.dfu-lesson .rp-opt:focus-visible,.dfu-lesson .rp-back:focus-visible,.dfu-lesson .cta-primary:focus-visible,.dfu-lesson .fc-deck:focus-visible,.dfu-lesson .fc-b:focus-visible,.dfu-lesson .fc-more:focus-visible,.dfu-lesson .fc-card:focus-visible,.dfu-lesson .rp-why summary:focus-visible,.dfu-lesson .rp-full summary:focus-visible,.dfu-lesson .scn summary:focus-visible,.dfu-lesson .foot-btn:focus-visible,.dfu-lesson .foot-link:focus-visible{outline:3px solid var(--blue);outline-offset:2px}.dfu-lesson .fc-card:focus-visible{outline-offset:4px;border-radius:16px}.dfu-lesson .rp-opt:focus-visible{outline-offset:-1px}.dfu-lesson .recap{margin:14px 0}.dfu-lesson .done-cta{margin-top:2em;border-top:1px solid var(--line);padding-top:1.6em}.dfu-lesson .done-cta .donerow{display:flex;gap:9px;flex-wrap:wrap;margin:1.1em 0 0}.dfu-lesson .done-cta .donefiles{margin-top:1.4em;padding-top:1.1em;border-top:1px solid var(--line);font-size:13px}.dfu-lesson .done-cta .donefiles a{color:var(--ink2)}.dfu-lesson .recap-src{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue2);margin-bottom:4px}.dfu-lesson .mobilebar,.dfu-lesson .scrim{display:none}@media (max-width:960px){.dfu-lesson.course{display:block}.dfu-lesson #side{position:fixed;left:0;top:0;bottom:0;height:auto;width:min(320px,86vw);transform:translate(-105%);transition:transform .25s;box-shadow:var(--shadow)}.dfu-lesson #side.open{transform:none}.dfu-lesson .mobilebar{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:30;background:#ffffffeb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:10px 16px}.dfu-lesson .mobilebar button{border:0;background:none;font-size:20px;cursor:pointer;padding:2px 8px;font-family:inherit}.dfu-lesson #mobileTitle{font-size:13.5px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dfu-lesson .scrim.show{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:35}}@media (pointer:coarse){.dfu-lesson .foot-link,.dfu-lesson .linklike{min-height:44px;display:inline-flex;align-items:center}.dfu-lesson .side-foot{gap:2px}.dfu-lesson .fc-b,.dfu-lesson .pill,.dfu-lesson .fc-deck,.dfu-lesson .fc-more,.dfu-lesson .cp-step{min-height:44px}.dfu-lesson .rp-opt{padding-top:15px;padding-bottom:15px}.dfu-lesson .side-item{min-height:48px}.dfu-lesson .mobilebar button{min-width:44px;min-height:44px}.dfu-lesson .sc-opts button{min-height:40px}}@media (prefers-reduced-motion:reduce){.dfu-lesson #side{transition:none}.dfu-lesson .side-item.flash{animation:none}.dfu-lesson .progress-fill{transition:none}.dfu-lesson{scroll-behavior:auto}}@media print{.dfu-lesson #side,.dfu-lesson .mobilebar,.dfu-lesson .scrim,.dfu-lesson .mfoot,.dfu-lesson .cta-primary,.dfu-lesson #startMeta,.dfu-lesson #corePath{display:none!important}.dfu-lesson .module:not(.active),.dfu-lesson .module{display:block!important}.dfu-lesson #appendix{display:block!important}.dfu-lesson #home{display:flex!important}.dfu-lesson #done{display:none!important}.dfu-lesson.course{display:block}.dfu-lesson .mhead{-moz-column-break-before:page;break-before:page}.dfu-lesson #practice,.dfu-lesson #flashcards{display:none!important}}.dfu-lesson .rp-intro{margin:.2em 0 1.6em}.dfu-lesson .rp-disc{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin-top:26px;line-height:1.5}.dfu-lesson .rp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:14px;margin:1.4em 0}.dfu-lesson .rp-card{text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:16px 17px 14px;cursor:pointer;font:inherit;color:inherit;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex;flex-direction:column;gap:9px}.dfu-lesson .rp-card:hover{border-color:#bcdcfd;box-shadow:var(--shadow-sm);transform:translateY(-1px)}.dfu-lesson .rp-card .rc-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.dfu-lesson .rp-card .rc-nm{font-size:17px;font-weight:600;letter-spacing:-.01em}.dfu-lesson .rp-card .rc-age{font-size:12.5px;color:var(--muted);font-weight:500;white-space:nowrap}.dfu-lesson .rp-card .rc-chip{align-self:flex-start;font-size:9.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:3px 8px;border-radius:5px;background:var(--surface);color:var(--muted);border:1px solid var(--line)}.dfu-lesson .rp-card .rc-chip.multi{background:var(--blue-soft);color:var(--blue2);border-color:#cfe6ff}.dfu-lesson .rp-card .rc-req{font-size:9.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .rp-card.req .rc-req{color:var(--blue2)}.dfu-lesson .rp-card.req{border-color:#cfe6ff}.dfu-lesson .rp-card .rc-hook{font-size:14px;line-height:1.45;color:var(--ink2);flex:1}.dfu-lesson .rp-card .rc-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:9px;margin-top:2px}.dfu-lesson .rp-card .rc-sc{display:flex;gap:5px}.dfu-lesson .rp-card .rc-sc span{font-size:10.5px;font-weight:700;padding:2px 7px;border-radius:999px;background:var(--surface);color:var(--ink2);border:1px solid var(--line)}.dfu-lesson .rp-card .rc-st{font-size:11.5px;color:var(--muted);font-weight:600}.dfu-lesson .rp-card .rc-st.done{color:var(--good)}.dfu-lesson .rp-card .rc-st.retry{color:#a8730c;font-weight:600}.dfu-lesson .rp-card.tried{border-color:#ecd6a4;background:#fffdf7}.dfu-lesson .rp-card.done{border-color:#cfe6ff;background:#fbfbfc}.dfu-lesson .rp-run{margin-top:.6em}.dfu-lesson .rp-back{background:none;border:0;font:inherit;font-size:13px;font-weight:600;color:var(--blue2);cursor:pointer;padding:0;margin-bottom:14px}.dfu-lesson .rp-mem{background:var(--blue-tint);border:1px solid #dceeff;border-radius:14px;padding:18px 20px;margin-bottom:14px}.dfu-lesson .rp-mem .rm-top{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:8px}.dfu-lesson .rp-mem .rm-nm{font-size:21px;font-weight:600;letter-spacing:-.02em}.dfu-lesson .rp-mem .rm-meta{font-size:13px;color:var(--ink2)}.dfu-lesson .rp-mem .rm-q{font-size:15.5px;line-height:1.55;font-style:italic;color:var(--ink2);border-left:2.5px solid var(--blue);padding-left:13px;margin-top:10px}.dfu-lesson .rp-mem .rm-k{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .rp-report{border:1.5px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:22px;background:#fff}.dfu-lesson .rp-rh{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 16px;background:var(--surface);border-bottom:1px solid var(--line)}.dfu-lesson .rp-rh .rh-k{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .rp-rh .rh-q{font-size:11.5px;font-weight:700;color:var(--blue2)}.dfu-lesson .rp-scores{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:1px;background:var(--line)}.dfu-lesson .rp-sc{background:#fff;padding:15px 16px;text-align:center}.dfu-lesson .rp-sc .sk{font-size:9.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}.dfu-lesson .rp-sc .sg{font-size:31px;font-weight:600;line-height:1;letter-spacing:-.03em}.dfu-lesson .rp-sc .sv{font-size:12px;color:var(--ink2);margin-top:4px;font-variant-numeric:tabular-nums}.dfu-lesson .rp-sc.hero{background:var(--blue-soft)}.dfu-lesson .rp-sc.hero .sg,.dfu-lesson .rp-sc.hero .sk{color:var(--blue2)}.dfu-lesson .rp-sc .dl{font-size:11px;font-weight:700;margin-top:3px}.dfu-lesson .rp-mx{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:0;background:#fff;border-top:1px solid var(--line)}.dfu-lesson .rp-m{background:#fff;padding:10px 13px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.dfu-lesson .rp-m .mk{font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}.dfu-lesson .rp-m .mv{font-size:16px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em}.dfu-lesson .rp-m .mv small{font-size:11px;font-weight:500;color:var(--muted);margin-left:2px}.dfu-lesson .rp-m .mp{font-size:10.5px;color:var(--muted);margin-top:2px}.dfu-lesson .rp-m.flag{background:#fff9f4}.dfu-lesson .rp-m.flag .mk{color:#c4761a}.dfu-lesson .up{color:var(--good)}.dfu-lesson .down{color:var(--bad)}.dfu-lesson .flat{color:var(--muted)}.dfu-lesson .rp-keyhead{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 16px;background:var(--blue-tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.dfu-lesson .rp-keyhead .kk{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2)}.dfu-lesson .rp-mx.key{grid-template-columns:repeat(3,1fr)}.dfu-lesson .rp-mx.key .rp-m{padding:14px 16px}@media (max-width:560px){.dfu-lesson .rp-mx.key{grid-template-columns:1fr}}.dfu-lesson .rp-mx.key .mv{font-size:21px}.dfu-lesson .rp-full{border-top:0}.dfu-lesson .rp-full summary{list-style:none;cursor:pointer;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--muted);padding:10px 16px;display:flex;align-items:center;gap:7px}.dfu-lesson .rp-full summary::-webkit-details-marker{display:none}.dfu-lesson .rp-full summary:before{content:"▸";font-size:9px;display:inline-block;transition:transform .15s}.dfu-lesson .rp-full[open] summary:before{transform:rotate(90deg)}.dfu-lesson .rp-full summary:hover{color:var(--blue2)}.dfu-lesson .rp-full .rp-mx{border-top:0}.dfu-lesson .frail{display:flex;gap:6px;margin:22px 0 4px}.dfu-lesson .fp{flex:1;border-top:2.5px solid var(--line);padding-top:8px;min-width:0}.dfu-lesson .fp b{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);line-height:1}.dfu-lesson .fp i{display:block;font-size:11px;font-style:normal;color:var(--muted);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dfu-lesson .fp.done{border-top-color:var(--blue-soft2)}.dfu-lesson .fp.done b{color:var(--ink2)}.dfu-lesson .fp.now{border-top-color:var(--blue)}.dfu-lesson .fp.now b{color:var(--blue2)}.dfu-lesson .fp.now i{color:var(--ink2);font-weight:600}@media (max-width:640px){.dfu-lesson .fp i{display:none}}.dfu-lesson .rp-step{border-top:1px solid var(--line);padding-top:22px;margin-top:24px}.dfu-lesson .rp-step:first-of-type{border-top:0;padding-top:0;margin-top:0}.dfu-lesson .rp-sk{display:flex;align-items:center;gap:9px;margin-bottom:9px}.dfu-lesson .rp-sk .n{width:21px;height:21px;border-radius:50%;background:var(--blue);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;flex:none}.dfu-lesson .rp-sk .l{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.dfu-lesson .rp-sq{font-size:16px;line-height:1.6;margin-bottom:14px}.dfu-lesson .rp-opts{display:flex;flex-direction:column;gap:9px}.dfu-lesson .rp-opt{text-align:left;font:inherit;font-size:15px;line-height:1.55;color:var(--ink2);background:#fff;border:1.5px solid var(--line);border-radius:11px;padding:13px 16px;cursor:pointer;transition:border-color .13s,background .13s;position:relative}.dfu-lesson .rp-opt:hover:not(:disabled){border-color:#bcdcfd;background:var(--blue-tint)}.dfu-lesson .rp-opt:disabled{cursor:default}.dfu-lesson .rp-opt .ol{display:block;font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:5px;opacity:0;height:0;transition:opacity .2s}.dfu-lesson .answered .rp-opt .ol{opacity:1;height:auto;margin-bottom:5px}.dfu-lesson .rp-opt.v-strong{border-color:#bcdcfd;background:#f5f9ff}.dfu-lesson .rp-opt.v-strong .ol{color:var(--good)}.dfu-lesson .rp-opt.v-ok{border-color:#f0d9a8;background:#fffcf5}.dfu-lesson .rp-opt.v-ok .ol{color:#b9810f}.dfu-lesson .rp-opt.v-avoid .ol{color:var(--bad)}.dfu-lesson .rp-opt.dim{opacity:.5}.dfu-lesson .rp-opt.chosen{box-shadow:0 0 0 3px #46a5fc29}.dfu-lesson .rp-fb{margin-top:12px;border-radius:11px;padding:14px 16px;font-size:15px;line-height:1.6;background:var(--surface);border:1px solid var(--line)}.dfu-lesson .rp-fb .fk{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:5px}.dfu-lesson .rp-fb.strong{background:#f5f9ff;border-color:#cfe6ff}.dfu-lesson .rp-fb.strong .fk{color:var(--good)}.dfu-lesson .rp-fb.ok{background:#fffcf5;border-color:#f0e2c2}.dfu-lesson .rp-fb.ok .fk{color:#b9810f}.dfu-lesson .rp-fb.avoid{background:#fff8f7;border-color:#f3cec8}.dfu-lesson .rp-fb.avoid .fk{color:var(--bad)}.dfu-lesson .rp-why{margin-top:11px;border-top:1px dashed var(--line2);padding-top:9px}.dfu-lesson .rp-why summary{font-size:12px;font-weight:700;color:var(--muted);cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:6px}.dfu-lesson .rp-why summary::-webkit-details-marker{display:none}.dfu-lesson .rp-why summary:before{content:"▸";font-size:9px;transition:transform .15s;display:inline-block}.dfu-lesson .rp-why[open] summary:before{transform:rotate(90deg)}.dfu-lesson .rp-why summary:hover{color:var(--blue2)}.dfu-lesson .rp-why .wb{font-size:14px;line-height:1.6;color:var(--ink2);padding:9px 0 2px;max-width:60ch}.dfu-lesson .rp-why .wn{font-weight:700;color:var(--ink)}.dfu-lesson .rp-next{margin-top:16px}.dfu-lesson .rp-recap{margin-top:26px;border-top:2px solid var(--blue);padding-top:20px}.dfu-lesson .rp-score-line{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px}.dfu-lesson .rp-score-line .big{font-size:34px;font-weight:600;letter-spacing:-.03em;line-height:1}.dfu-lesson .rp-score-line .big.miss{color:#a8730c}.dfu-lesson .rp-recap.miss{border-color:#ecd6a4}.dfu-lesson .rp-score-line .lbl{font-size:14px;color:var(--ink2);line-height:1.45}.dfu-lesson .rp-say{background:#0f1b2d;color:#dfe9f7;border-radius:12px;padding:19px 22px;margin:16px 0;font-size:15.5px;line-height:1.7}.dfu-lesson .rp-say .lab{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#46a5fc;margin-bottom:9px}.dfu-lesson .rp-say p{margin:0 0 .7em}.dfu-lesson .rp-say p:last-child{margin-bottom:0}.dfu-lesson .rp-avoid{background:#fff8f7;border:1px solid #f3cec8;border-radius:11px;padding:15px 18px;margin:16px 0}.dfu-lesson .rp-avoid .lab{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--bad);margin-bottom:8px}.dfu-lesson .rp-avoid ul{margin:0;padding-left:19px;font-size:14.5px;line-height:1.65;color:var(--ink2)}.dfu-lesson .rp-navrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.dfu-lesson .fc-decks{display:flex;flex-wrap:wrap;gap:9px;margin:1.3em 0 1.6em}.dfu-lesson .fc-deck{font:inherit;font-size:13.5px;font-weight:600;padding:9px 15px;border-radius:999px;border:1.5px solid var(--line2);background:#fff;color:var(--ink2);cursor:pointer;transition:.13s;display:inline-flex;align-items:center;gap:7px}.dfu-lesson .fc-deck:hover{border-color:#bcdcfd}.dfu-lesson .fc-deck.on{background:var(--blue-soft);border-color:#8ec6fb;color:var(--blue2)}.dfu-lesson .fc-deck .dn{font-size:11px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}.dfu-lesson .fc-deck.on .dn{color:var(--blue2)}.dfu-lesson .fc-deck.adv{border-style:dashed;color:var(--muted)}.dfu-lesson .fc-deck.adv.on{border-style:solid;background:#fff6e6;border-color:#f0d9a8;color:#b9810f}.dfu-lesson .fc-more{font:inherit;font-size:13px;font-weight:600;padding:9px 4px;border:0;background:none;color:var(--muted);cursor:pointer;text-decoration:underline;text-underline-offset:3px}.dfu-lesson .fc-more:hover{color:var(--blue2)}.dfu-lesson .fc-src{font-size:11.5px;color:var(--muted);margin-top:14px;padding-top:10px;border-top:1px solid var(--line)}.dfu-lesson .fc-stage{perspective:1400px;margin:1.2em 0}.dfu-lesson .fc-card{position:relative;width:100%;min-height:250px;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,.1,.2,1);cursor:pointer}.dfu-lesson .fc-card.flip{transform:rotateY(180deg)}.dfu-lesson .fc-face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:16px;padding:34px;display:flex;flex-direction:column;justify-content:center;border:1.5px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}.dfu-lesson .fc-face.back{transform:rotateY(180deg);background:var(--blue-tint);border-color:#dceeff}.dfu-lesson .fc-k{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.dfu-lesson .fc-face.back .fc-k{color:var(--blue2)}.dfu-lesson .fc-q{font-size:21px;font-weight:500;line-height:1.45;letter-spacing:-.015em}.dfu-lesson .fc-a{font-size:16.5px;line-height:1.62;color:var(--ink2)}.dfu-lesson .fc-a strong{color:var(--ink);font-weight:600}.dfu-lesson .fc-hint{font-size:11.5px;color:var(--muted);margin-top:16px}.dfu-lesson .fc-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:14px}.dfu-lesson .fc-btns{display:flex;gap:9px;flex-wrap:wrap}.dfu-lesson .fc-b{font:inherit;font-size:13.5px;font-weight:600;padding:9px 17px;border-radius:9px;border:1.5px solid var(--line2);background:#fff;color:var(--ink2);cursor:pointer;transition:.13s}.dfu-lesson .fc-b:hover{border-color:#bcdcfd;color:var(--blue2)}.dfu-lesson .fc-b.good{border-color:#bcdcfd;color:var(--good)}.dfu-lesson .fc-b.good:hover{background:#f5f9ff}.dfu-lesson .fc-b.again{border-color:#f0d9a8;color:#b9810f}.dfu-lesson .fc-b.again:hover{background:#fffcf5}.dfu-lesson .fc-count{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}.dfu-lesson .fc-done{text-align:center;padding:44px 20px;border:1.5px dashed var(--line2);border-radius:16px}.dfu-lesson .fc-done .d1{font-size:20px;font-weight:600;margin-bottom:7px}.dfu-lesson .fc-done .d2{font-size:14.5px;color:var(--ink2);margin-bottom:18px}@media (max-width:640px){.dfu-lesson .rp-scores{grid-template-columns:1fr}.dfu-lesson .rp-sc{text-align:left}.dfu-lesson .fc-face{padding:26px 22px}.dfu-lesson .fc-q{font-size:18.5px}.dfu-lesson .fc-a{font-size:15.5px}}@media (prefers-reduced-motion:reduce){.dfu-lesson .fc-card,.dfu-lesson .rp-card{transition:none}}.dfu-lesson{background:transparent;color:#0b1520;font-size:17px;line-height:1.62;position:relative;--ink: #0B1520;--ink2: #5B606B;--muted: #5B606B;--amber: #B8791C;--blue2: #46A5FC}.dfu-lesson .wrap{max-width:34em;padding:0;margin:0 auto}.dfu-lesson .wide{max-width:100%;padding:0;margin:0 auto}.dfu-lesson .module,.dfu-lesson section{background:transparent;padding:0;border:0}.dfu-lesson h2{font-size:clamp(1.6rem,3.6vw,2.1rem);line-height:1.15;margin-bottom:.35em}.dfu-lesson h3{scroll-margin-top:80px}.dfu-lesson img{max-width:100%;height:auto}.dfu-lesson table{font-size:15px}.dfu-lesson .t-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}.dfu-lesson .t-wrap.is-scrollable{background:linear-gradient(to right,#fff 30%,#fff0) left center / 28px 100% no-repeat local,linear-gradient(to left,#fff 30%,#fff0) right center / 28px 100% no-repeat local,radial-gradient(farthest-side at 0 50%,#0b152029,#0b152000) left center / 12px 100% no-repeat scroll,radial-gradient(farthest-side at 100% 50%,#0b152029,#0b152000) right center / 12px 100% no-repeat scroll;background-color:#fff}.dfu-lesson .t-wrap.is-scrollable:focus-visible{outline-offset:2px}.dfu-lesson .t-wrap.is-scrollable :is(th,td):first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:1px 0 #e4e7eb}.dfu-lesson .t-scroll-cue{display:flex;align-items:center;gap:6px;margin:18px 0 -12px;font-size:14px;font-weight:500;color:#5b606b}.dfu-lesson .t-scroll-cue[hidden]{display:none}.dfu-lesson .t-scroll-cue svg{flex:none}@media (min-width: 821px){.dfu-lesson .pagefig{grid-template-columns:minmax(300px,50%) minmax(0,1fr)}}.dfu-lesson img.dfu-zoomable{cursor:zoom-in}.dfu-lesson img.dfu-zoomable:focus-visible{outline-offset:3px}.dfu-lesson .zoom-hint{display:flex;align-items:center;gap:6px;margin-top:6px;font-size:13px;font-weight:500;color:#5b606b}@media (max-width: 640px){.dfu-lesson .case{padding:16px 14px}.dfu-lesson .case figure{margin-left:-6px;margin-right:-6px}}.dfu-lesson pre,.dfu-lesson code{white-space:pre-wrap;word-break:break-word}.dfu-lesson *{overflow-wrap:break-word}.dfu-lesson svg{max-width:100%;height:auto}.dfu-lesson .dfu-sec[data-needs-update]{border-left:3px solid #F0D9A8;padding-left:14px;margin-left:-17px}@media (max-width: 640px){.dfu-lesson .dfu-sec[data-needs-update]{margin-left:0;padding-left:12px}}.dfu-lesson .nu-note{display:flex;gap:.5rem;align-items:flex-start;margin:1.2em 0 .8em;padding:.55rem .75rem;border-radius:10px;background:#fff6e6;border:1px solid #F0D9A8;font-size:14px;line-height:1.45;color:#0b1520}.dfu-lesson .nu-note .nu-ring{flex:none;width:12px;height:12px;margin-top:4px;border-radius:999px;border:2.5px solid #B8791C;background:transparent}.dfu-lesson .nu-note b{font-weight:600}.dfu-lesson .img-withheld{display:flex;flex-direction:column;gap:4px;justify-content:center;min-height:120px;padding:18px;border:1.5px dashed #B4BDC6;border-radius:12px;background:#f6f8fb;color:#5b606b;font-size:14px;line-height:1.45;text-align:center}.dfu-lesson .img-withheld .iw-k{font-weight:600;color:#0b1520}.dfu-lesson .pagefig{gap:16px}.dfu-lesson :is(figcaption .tag,.duo .side .k,.callout .lab,.flowline .k,.baseline-node .bl-k,.corepath .cp-k,.cp-step .cp-n,.score-model .sm-k,.score-domain .name,.domain-card .dc-k,.domain-value b,.mode-card .k,.signal-panel .actual-label .k,.hunger-key span,.pheno-y,.pheno-x,.ph-cell .ph-k,.pheno-detail .pd-k,.journey-mobile-axis,.anatomy360 .a-k,.heat-head .k,.heat-step b,.pow .k,.sexsplit .l,.field-note .k,.commission .badge,.vs .cap,thead th,.frame-steps .stage,.snap .when,.snap .sk,.cmp .head,.side-supp-k,.sg-h,.selfcheck .sc-k,.recap-src,.rp-card .rc-chip,.rp-card .rc-req,.rp-mem .rm-k,.rp-rh .rh-k,.rp-rh .rh-q,.rp-sc .sk,.rp-m .mk,.rp-keyhead .kk,.rp-sk .l,.rp-opt .ol,.rp-fb .fk,.rp-say .lab,.rp-avoid .lab,.fc-k){font-size:12px}.dfu-lesson :is(figcaption .tag,.flowline .k,.corepath .cp-k,.cp-step .cp-n,.score-model .sm-k,.domain-card .dc-k,.mode-card .k,.signal-panel .actual-label .k,.hunger-key span,.ph-cell .ph-k,.pheno-detail .pd-k,.anatomy360 .a-k,.heat-head .k,.heat-step b,.pow .k,.field-note .k,.commission .badge,.frame-steps .stage,.selfcheck .sc-k,.recap-src,.rp-mem .rm-k,.rp-rh .rh-q,.rp-keyhead .kk,.rp-say .lab){color:#5b606b}.dfu-lesson :is(.callout.tip .lab,.callout.bottom .lab,.callout.input .lab,.rp-card.req .rc-req,.rp-card .rc-chip.multi){color:#5b606b}.dfu-lesson .ns-k{font-size:12px;color:#9d9d9e}.dfu-lesson .ns-k.blue{color:#46a5fc}.dfu-lesson .ns-measure-copy span{font-size:12px}.dfu-lesson .vs .printout{color:#5b606b}.dfu-lesson .duo .engineside .k{color:#5b606b!important}.dfu-lesson figcaption .tag.amber{color:#5b606b}.dfu-lesson .callout.input .lab,.dfu-lesson .volnote,.dfu-lesson .side-item .trk-owner,.dfu-lesson .vs .printout .fine,.dfu-lesson .vs .ftr{color:#5b606b}.dfu-lesson .rp-m.flag .mk{color:#0b1520}.dfu-lesson .rp-m.flag .mk:before{content:"○ ";color:#b8791c;font-weight:700}.dfu-lesson .rp-score-line .big.miss{color:#0b1520}.dfu-lesson .rp-card .rc-st.retry{color:#5b606b}.dfu-lesson .rp-card .rc-st.retry:before{content:"○ ";color:#b8791c}.dfu-lesson .fc-deck.adv.on,.dfu-lesson .fc-b.again{color:#0b1520}.dfu-lesson .rp-opt .ol,.dfu-lesson .rp-fb .fk{color:#5b606b!important}.dfu-lesson .rp-opt.v-strong .ol:before,.dfu-lesson .rp-fb.strong .fk:before{content:"✓ ";color:#46a5fc}.dfu-lesson .rp-opt.v-ok .ol:before,.dfu-lesson .rp-fb.ok .fk:before{content:"– "}.dfu-lesson .rp-opt.v-avoid .ol:before,.dfu-lesson .rp-fb.avoid .fk:before{content:"✕ ";color:#c8322f}.dfu-lesson .rp-opt.v-ok{border-color:#d5dae0;background:#fbfbfc}.dfu-lesson .rp-fb.ok{background:#fbfbfc;border-color:#d5dae0}.dfu-lesson .rp-opt.v-avoid{border-color:#f2b8b0;background:#fff8f7}.dfu-lesson .rp-avoid .lab{color:#0b1520}.dfu-lesson .rp-avoid .lab:before{content:"✕ ";color:#c8322f}.dfu-lesson .rp-opt{text-align:left;width:100%;min-height:44px;font:inherit}.dfu-lesson .rp-opt.chosen{outline:2px solid #0B1520;outline-offset:1px}.dfu-lesson .pr-opts button{min-height:44px;font:inherit}.dfu-lesson .pr-opts button.best:after{content:" ✓ best answer";font-weight:600}.dfu-lesson .pr-opts button.pick:not(.best):after{content:" · your pick";color:#5b606b}.dfu-lesson .pr-opts button.pick:not(.best){border-color:#b8791c;border-style:dashed}.dfu-lesson .pr-fb:empty{display:none}.dfu-lesson .frail{gap:4px}.dfu-lesson .fp{border-top:3px dashed #D5DAE0;padding-top:8px}.dfu-lesson .fp.done{border-top:3px solid #46A5FC}.dfu-lesson .fp.now{border-top:5px solid #46A5FC;padding-top:6px}.dfu-lesson .fp b{display:inline-flex;align-items:center;gap:4px;color:#5b606b}.dfu-lesson .fp.done b{color:#0b1520}.dfu-lesson .fp.done b:after{content:"✓";color:#46a5fc;font-size:12px}.dfu-lesson .fp.now b{color:#0b1520}.dfu-lesson .fp i{font-size:12px;color:#5b606b;white-space:normal;overflow:visible;text-overflow:clip;line-height:1.25}.dfu-lesson .fp.now i{color:#0b1520;font-weight:600}@media (max-width: 640px){.dfu-lesson .fp i{display:block;font-size:12px}}.dfu-lesson .rp-back{display:inline-flex;align-items:center;min-height:44px}.dfu-lesson .rp-why summary,.dfu-lesson .rp-full summary{min-height:44px;display:flex;align-items:center;cursor:pointer}.dfu-lesson :focus-visible{outline:2px solid #0B1520!important;outline-offset:2px!important;box-shadow:0 0 0 2px #46a5fc!important}@media (prefers-reduced-motion: reduce){.dfu-lesson *,.dfu-lesson *:before,.dfu-lesson *:after{scroll-behavior:auto}.dfu-lesson .ph-cell:hover{transform:none}}.dfu-watermark{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none;background-repeat:repeat;z-index:1}.dfu-lesson>.dfu-body{position:relative;z-index:0}.dfu-deck{position:relative;overflow:hidden;border-radius:12px;border:1px solid #E4E7EB;background:#fff!important}.dfu-deck .slide{display:block!important;position:absolute;top:0;right:0;bottom:0;left:0}.dfu-deck .img-withheld{display:flex;flex-direction:column;gap:8px;justify-content:center;align-items:center;min-height:320px;padding:28px;border:2px dashed #B4BDC6;border-radius:16px;background:#f6f8fb;color:#5b606b;font-size:20px;line-height:1.4;text-align:center}.dfu-deck .img-withheld .iw-k{font-weight:600;color:#0b1520}