/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-leading:initial;--tw-font-weight:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-serif:ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-red-100:oklch(93.6% .032 17.717);--color-red-800:oklch(44.4% .177 26.899);--color-yellow-100:oklch(97.3% .071 103.193);--color-yellow-800:oklch(47.6% .114 61.907);--color-green-100:oklch(96.2% .044 156.743);--color-green-800:oklch(44.8% .119 151.328);--color-blue-50:oklch(97% .014 254.604);--color-blue-100:oklch(93.2% .032 255.585);--color-blue-800:oklch(42.4% .199 265.638);--color-gray-100:oklch(96.7% .003 264.542);--color-gray-200:oklch(92.8% .006 264.531);--color-gray-500:oklch(55.1% .027 264.364);--color-gray-600:oklch(44.6% .03 256.802);--color-gray-700:oklch(37.3% .034 259.733);--color-gray-900:oklch(21% .034 264.665);--spacing:.25rem;--container-3xl:48rem;--container-4xl:56rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-xl:1.25rem;--text-xl--line-height:calc(1.75 / 1.25);--text-3xl:1.875rem;--text-3xl--line-height:calc(2.25 / 1.875);--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5 / 2.25);--font-weight-semibold:600;--font-weight-bold:700;--leading-snug:1.375;--leading-relaxed:1.625;--radius-lg:.5rem;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.\@container{container-type:inline-size}.collapse{visibility:collapse}.visible{visibility:visible}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.isolate{isolation:isolate}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.mx-auto{margin-inline:auto}.mb-4{margin-bottom:calc(var(--spacing) * 4)}.mb-6{margin-bottom:calc(var(--spacing) * 6)}.mb-8{margin-bottom:calc(var(--spacing) * 8)}.ml-3{margin-left:calc(var(--spacing) * 3)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-block{display:inline-block}.table{display:table}.w-full{width:100%}.max-w-3xl{max-width:var(--container-3xl)}.max-w-4xl{max-width:var(--container-4xl)}.max-w-none{max-width:none}.flex-shrink{flex-shrink:1}.border-collapse{border-collapse:collapse}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap-2{gap:calc(var(--spacing) * 2)}.gap-4{gap:calc(var(--spacing) * 4)}.rounded{border-radius:.25rem}.rounded-full{border-radius:2147483647px}.rounded-lg{border-radius:var(--radius-lg)}.border{border-style:var(--tw-border-style);border-width:1px}.border-b{border-bottom-style:var(--tw-border-style);border-bottom-width:1px}.border-gray-200{border-color:var(--color-gray-200)}.bg-blue-50{background-color:var(--color-blue-50)}.bg-blue-100{background-color:var(--color-blue-100)}.bg-gray-100{background-color:var(--color-gray-100)}.bg-green-100{background-color:var(--color-green-100)}.bg-red-100{background-color:var(--color-red-100)}.bg-yellow-100{background-color:var(--color-yellow-100)}.p-4{padding:calc(var(--spacing) * 4)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-4{padding-inline:calc(var(--spacing) * 4)}.py-1{padding-block:var(--spacing)}.py-8{padding-block:calc(var(--spacing) * 8)}.pb-8{padding-bottom:calc(var(--spacing) * 8)}.text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.leading-relaxed{--tw-leading:var(--leading-relaxed);line-height:var(--leading-relaxed)}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.text-wrap{text-wrap:wrap}.tab-0{tab-size:0}.tab-1{tab-size:1}.tab-2{tab-size:2}.tab-3{tab-size:3}.tab-4{tab-size:4}.tab-5{tab-size:5}.tab-6{tab-size:6}.tab-7{tab-size:7}.tab-8{tab-size:8}.text-blue-800{color:var(--color-blue-800)}.text-gray-500{color:var(--color-gray-500)}.text-gray-600{color:var(--color-gray-600)}.text-gray-700{color:var(--color-gray-700)}.text-gray-900{color:var(--color-gray-900)}.text-green-800{color:var(--color-green-800)}.text-red-800{color:var(--color-red-800)}.text-yellow-800{color:var(--color-yellow-800)}.italic{font-style:italic}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.invert{--tw-invert:invert(100%);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}@media (width>=48rem){.md\:text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}}}:root{--ink:#15231f;--paper:#f4f0e8;--cream:#fffdf7;--orange:#be4023;--orange-on-dark:#ff795c;--mint:#bde6d5;--blue:#b8d8f5;--line:#15231f29;--muted:#65716d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Paperlogy,sans-serif}button,a{font:inherit}button{color:inherit}.topbar{z-index:50;backdrop-filter:blur(18px);border-bottom:1px solid var(--line);background:#f4f0e8e6;align-items:center;gap:24px;height:72px;padding:0 30px;display:flex;position:fixed;top:0;left:0;right:0}.brand{text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:12px;display:flex}.brand-mark{background:var(--orange);color:#fff;border-radius:50%;place-items:center;width:42px;height:42px;font-size:13px;font-weight:800;display:grid}.brand b,.brand small{display:block}.brand b{font-size:14px}.brand small{color:var(--muted);margin-top:2px;font-size:10px}.top-progress{background:#15231f1a;flex:1;height:3px;overflow:hidden}.top-progress span{background:var(--orange);height:100%;transition:all .4s;display:block}.menu-button{border:1px solid var(--line);background:var(--cream);cursor:pointer;border-radius:50%;place-items:center;width:42px;height:42px;display:grid}.menu-button svg{width:19px}.chapter-nav{z-index:45;border:1px solid var(--line);visibility:hidden;pointer-events:none;background:#fffdf7fa;width:240px;max-height:calc(100dvh - 110px);padding:20px;transition:transform .3s,visibility 0s linear .3s;position:fixed;top:88px;right:26px;overflow-y:auto;transform:translate(calc(100% + 40px));box-shadow:0 24px 60px #15231f1f}.chapter-nav.open{visibility:visible;pointer-events:auto;transition-delay:0s;transform:none}.chapter-nav>p{color:var(--muted);letter-spacing:.12em;margin:0 0 12px;font-size:11px}.chapter-nav button{border:0;border-top:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;gap:12px;width:100%;padding:11px 2px;font-size:13px;display:flex}.chapter-nav button span{color:var(--muted)}.chapter-nav button.active{color:var(--orange);font-weight:700}.lecture-section{min-height:100svh;padding:130px max(7vw,40px) 100px;position:relative;overflow:hidden}.section-title{max-width:850px;margin-bottom:64px}.eyebrow{color:var(--orange);letter-spacing:.15em;margin:0 0 18px;font-size:12px;font-weight:800}.section-title h2{letter-spacing:-.055em;margin:0;font-size:clamp(42px,6vw,82px);line-height:.98}.section-points{color:var(--muted);gap:9px;max-width:760px;margin:26px 0 0;padding:0;font-size:clamp(16px,1.55vw,22px);line-height:1.5;list-style:none;display:grid}.section-points li{padding-left:22px;position:relative}.section-points li:before{content:"→";color:var(--orange);font-weight:800;position:absolute;left:0}.hero{background:var(--ink);color:#fff;align-items:center;padding-top:120px;display:grid}.hero-grid-bg{background-image:linear-gradient(#ffffff0e 1px,#0000 1px),linear-gradient(90deg,#ffffff0e 1px,#0000 1px);background-size:70px 70px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#000,#0000 78%);mask-image:linear-gradient(90deg,#000,#0000 78%)}.hero-orbit{border:1px solid #bde6d552;border-radius:50%;position:absolute;right:-5vw}.orbit-one{width:52vw;height:52vw;top:4vh}.orbit-two{width:35vw;height:35vw;top:18vh;right:3vw}.hero-content{z-index:2;max-width:890px;position:relative}.eyebrow.light{color:var(--mint)}.hero h1{letter-spacing:-.075em;margin:0;font-size:clamp(58px,9.5vw,140px);line-height:.87}.hero h1 em{color:var(--orange-on-dark);font-style:normal}.hero-copy{color:#cad2cf;gap:9px;max-width:750px;margin:36px 0;padding:0;font-size:clamp(17px,1.6vw,23px);line-height:1.45;list-style:none;display:grid}.hero-copy li{padding-left:24px;position:relative}.hero-copy li:before{content:"→";color:var(--orange);position:absolute;left:0}.hero-actions{gap:12px;display:flex}.primary-button,.ghost-button{cursor:pointer;border:0;align-items:center;gap:10px;height:54px;padding:0 22px;text-decoration:none;display:inline-flex}.primary-button{background:var(--orange);color:#fff}.ghost-button{color:#fff;border:1px solid #ffffff47}.primary-button svg,.ghost-button svg{width:17px}.hero-meta{color:#aeb9b5;border-top:1px solid #ffffff26;flex-wrap:wrap;gap:28px;margin-top:55px;padding-top:24px;font-size:13px;display:flex}.hero-meta b{color:#fff;margin-right:8px}.hero-question{z-index:3;background:var(--mint);width:290px;color:var(--ink);box-shadow:12px 12px 0 var(--orange);padding:24px;position:absolute;bottom:8vh;right:7vw;transform:rotate(2deg)}.hero-question p{letter-spacing:.1em;font-size:11px}.hero-question strong{font-size:21px;line-height:1.35;display:block}.hero-question ul{color:#456057;gap:5px;margin-top:14px;padding:0;font-size:12px;line-height:1.5;list-style:none;display:grid}.hero-question li:before{content:"→ ";color:var(--orange);font-weight:800}.overview-section{background:var(--cream)}.overview-section .section-title{max-width:none}.overview-section .section-title h2{white-space:nowrap;font-size:clamp(42px,5.4vw,76px)}.orientation-flow{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(4,1fr);display:grid}.orientation-flow article{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:270px;padding:26px}.orientation-flow article:first-child{background:var(--mint)}.orientation-flow article:nth-child(4){background:#ffd6c9}.orientation-flow span,.orientation-flow small{font-weight:800;display:block}.orientation-flow span{color:var(--orange);font-size:12px}.orientation-flow small{color:var(--muted);letter-spacing:.08em;margin-top:42px;font-size:11px}.orientation-flow h3{margin:9px 0 30px;font-size:25px;line-height:1.15}.orientation-flow p{color:var(--muted);margin:0;font-size:13px;line-height:1.5}.overview-goals{background:var(--ink);color:#fff;grid-template-columns:.65fr 1.35fr;gap:30px;margin-top:30px;padding:34px;display:grid}.overview-goals>div span{color:var(--mint);letter-spacing:.1em;font-size:11px;font-weight:800}.overview-goals h3{margin:14px 0 0;font-size:clamp(26px,3vw,44px);line-height:1.1}.overview-goals ul{grid-template-columns:repeat(2,1fr);gap:12px;margin:0;padding:0;list-style:none;display:grid}.overview-goals li{color:#d4ddda;align-items:center;gap:9px;font-size:13px;display:flex}.overview-goals svg{width:17px;color:var(--orange);flex:none}.why-section,.rules-section,.case-section{background:var(--cream)}.day-trace{border:1px solid var(--line);grid-template-columns:repeat(4,1fr);display:grid}.trace-card{border-right:1px solid var(--line);min-height:190px;padding:28px;position:relative}.trace-card:last-child{border:0}.trace-card span,.trace-card b,.trace-card small{display:block}.trace-card span{color:var(--orange);font-size:12px;font-weight:800}.trace-card b{margin:45px 0 7px;font-size:26px}.trace-card small{color:var(--muted)}.trace-card i{color:#15231f0d;font-size:64px;font-style:normal;font-weight:900;position:absolute;top:15px;right:15px}.decision-principle{letter-spacing:-.04em;border-left:7px solid var(--orange);grid-template-columns:220px 1fr;gap:34px;margin:90px 0 0;padding-left:30px;font-size:clamp(18px,1.9vw,28px);line-height:1.25;display:grid}.decision-principle>span{color:var(--orange);letter-spacing:.1em;font-size:12px;font-weight:800}.decision-principle ul{gap:14px;margin:0;padding:0;list-style:none;display:grid}.decision-principle li{padding-left:34px;position:relative}.decision-principle li:before{content:"→";color:var(--orange);position:absolute;left:0}.lens-layout{border:1px solid var(--line);grid-template-columns:.8fr 1.2fr;min-height:430px;display:grid}.lens-controls{flex-direction:column;display:flex}.lens-controls button{text-align:left;border:0;border-bottom:1px solid var(--line);cursor:pointer;background:0 0;flex:1;grid-template-rows:1fr 1fr;grid-template-columns:42px 1fr;align-items:center;padding:24px;display:grid}.lens-controls button:last-child{border:0}.lens-controls button svg{grid-row:1/3}.lens-controls button small{color:var(--muted)}.lens-controls button.active{background:var(--ink);color:#fff}.lens-controls button.active small{color:#aeb9b5}.lens-result{flex-direction:column;justify-content:center;padding:60px;transition:all .3s;display:flex}.lens-result.tech{background:var(--blue)}.lens-result.people{background:var(--mint)}.lens-result.org{background:#ffd6c9}.lens-result>svg{stroke-width:1px;width:64px;height:64px}.lens-result p{letter-spacing:.18em;margin:28px 0 8px;font-size:11px}.lens-result h3{letter-spacing:-.05em;margin:0;font-size:clamp(36px,5vw,70px)}.lens-result span{margin:20px 0 48px;font-size:20px}.lens-result b{border-top:1px solid;padding-top:18px}.chapter1-section{background:#e8edf2}.chapter-map{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,1fr);display:grid}.chapter-map article{background:var(--cream);border-right:1px solid var(--line);border-bottom:1px solid var(--line);flex-direction:column;min-height:390px;padding:30px;display:flex}.chapter-map article:first-child{background:var(--mint);grid-column:1/3;min-height:360px}.chapter-map header{color:var(--orange);letter-spacing:.1em;justify-content:space-between;font-size:12px;font-weight:800;display:flex}.chapter-map header em{color:var(--muted);font-style:normal}.chapter-map h3{letter-spacing:-.045em;margin:38px 0 8px;font-size:clamp(30px,3.2vw,48px);line-height:1}.chapter-map article>p{color:var(--muted);margin:0 0 22px;font-weight:700}.chapter-map ul,.video-feature ul{margin:0;padding:0;list-style:none}.chapter-map li,.video-feature li{padding:7px 0 7px 20px;line-height:1.5;position:relative}.chapter-map li:before,.video-feature li:before{content:"→";color:var(--orange);font-weight:800;position:absolute;left:0}.chapter-map footer{border-top:1px solid var(--line);background:0 0;min-height:0;margin-top:auto;padding:18px 0 0;display:block}.chapter-map footer b,.chapter-map footer span{display:block}.chapter-map footer b{color:var(--orange);letter-spacing:.1em;font-size:11px}.chapter-map footer span{margin-top:7px;font-size:13px}.chapter1-summary{background:var(--ink);color:#fff;grid-template-columns:150px 1fr;gap:25px;margin-top:24px;padding:25px;display:grid}.chapter1-summary b{color:var(--mint)}.chapter1-summary p{margin:0;font-size:18px;line-height:1.55}.chapter1-summary ul{gap:8px;margin:0;padding:0;font-size:17px;list-style:none;display:grid}.chapter1-summary li:before{content:"→ ";color:var(--orange);font-weight:800}.roadmap-section,.quiz-section{background:var(--ink);color:#fff}.roadmap-section .section-points,.quiz-section .section-points{color:#abb6b2}.hero .hero-copy li:before,.hero .hero-question li:before,.roadmap-section .eyebrow,.quiz-section .eyebrow,.roadmap-section .section-points li:before,.quiz-section .section-points li:before,.roadmap-section .week-reading b,.roadmap-section .week-columns li:before{color:var(--orange-on-dark)}.week-selector{border-top:1px solid #ffffff2e;border-left:1px solid #ffffff2e;grid-template-columns:repeat(5,1fr);display:grid}.week-selector button{color:#fff;text-align:left;cursor:pointer;background:0 0;border:1px solid #ffffff2e;border-top:0;border-left:0;min-height:92px;padding:15px}.week-selector button span,.week-selector button small{display:block}.week-selector button span{color:var(--mint);font-size:12px;font-weight:800}.week-selector button small{color:#aeb9b5;margin-top:9px;line-height:1.35}.week-selector button.active{background:var(--orange)}.week-selector button.active span,.week-selector button.active small{color:#fff}.week-detail{background:#20322d;border:1px solid #ffffff2e;border-top:0}.week-detail header{padding:38px}.week-detail header>div{align-items:center;gap:10px;display:flex}.week-detail header span,.week-detail header em{letter-spacing:.1em;font-size:11px;font-style:normal;font-weight:800}.week-detail header span{color:var(--mint)}.week-detail header em{background:#ffffff16;padding:5px 8px}.week-detail h3{letter-spacing:-.04em;margin:20px 0 13px;font-size:clamp(32px,4.2vw,60px);line-height:1.05}.week-detail header p{color:var(--mint);margin:0;font-size:19px}.week-reading{color:#d7dfdc;align-items:baseline;gap:12px;margin-top:18px;font-size:13px;display:flex}.week-reading b{color:var(--orange);letter-spacing:.1em;flex:none;font-size:10px}.week-columns{border-top:1px solid #ffffff2e;grid-template-columns:1.4fr 1fr 1fr;display:grid}.week-columns>div{border-right:1px solid #ffffff2e;min-height:170px;padding:28px}.week-columns>div:last-child{border:0}.week-columns b{color:#aeb9b5;letter-spacing:.1em;margin-bottom:18px;font-size:11px;display:block}.week-columns ul{margin:0;padding:0;list-style:none}.week-columns li{padding:5px 0 5px 18px;position:relative}.week-columns li:before{content:"→";color:var(--orange);position:absolute;left:0}.week-columns strong{font-size:19px;line-height:1.45}.learning-goals{grid-template-columns:180px 1fr;gap:30px;margin-top:70px;display:grid}.learning-goals>p{color:var(--mint);font-weight:700}.learning-goals>div{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.learning-goals span{align-items:center;gap:8px;font-size:13px;display:flex}.learning-goals svg{width:17px;color:var(--orange)}.grade-grid{grid-template-columns:repeat(4,1fr);gap:12px;display:grid}.grade-grid article{background:var(--paper);border-top:7px solid hsl(calc(12 + var(--i)*25) 82% 61%);padding:28px}.grade-grid strong,.grade-grid b,.grade-grid small{display:block}.grade-grid strong{letter-spacing:-.06em;font-size:70px}.grade-grid sup{font-size:20px}.grade-grid b{font-size:19px}.grade-grid small{color:var(--muted);margin-top:8px}.class-contract{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:1.1fr repeat(2,1fr);margin-top:70px;display:grid}.class-contract>*{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px}.class-contract h3{background:var(--mint);grid-row:1/3;margin:0;font-size:38px}.class-contract div{gap:16px;display:flex}.class-contract div span{color:var(--orange);font-size:12px}.class-contract div p{margin:0}.class-contract div b{margin-bottom:5px;display:block}.why-section .section-title{max-width:none}.why-section .section-title h2{white-space:nowrap;font-size:clamp(40px,5.15vw,74px)}.professor-section{background:var(--mint);grid-template-columns:minmax(300px,.8fr) 1.2fr;align-items:center;gap:clamp(40px,7vw,110px);display:grid}.professor-photo{position:relative}.professor-photo img{object-fit:cover;filter:grayscale();border-radius:2px;width:100%;max-height:690px;display:block}.professor-photo span{background:var(--orange);color:#fff;letter-spacing:.12em;padding:12px 16px;font-size:11px;font-weight:800;position:absolute;bottom:26px;left:-18px;transform:rotate(-2deg)}.professor-copy h2{letter-spacing:-.065em;margin:0;font-size:clamp(52px,7.5vw,105px);line-height:.9}.professor-lead{gap:8px;max-width:680px;margin:30px 0 38px;padding:0;font-size:18px;line-height:1.45;list-style:none;display:grid}.professor-lead li:before{content:"→ ";color:var(--orange);font-weight:800}.professor-facts{border-top:1px solid #15231f38;border-left:1px solid #15231f38;grid-template-columns:repeat(3,1fr);display:grid}.professor-facts article{border-bottom:1px solid #15231f38;border-right:1px solid #15231f38;padding:22px}.professor-facts article>b{color:#445b53;font-size:12px}.professor-facts ul{margin:17px 0 0;padding:0;list-style:none}.professor-facts li{padding:5px 0 5px 15px;font-size:13px;line-height:1.4;position:relative}.professor-facts li:before{content:"•";color:var(--orange);position:absolute;left:0}.professor-contact{flex-wrap:wrap;align-items:center;gap:20px;margin-top:28px;font-size:13px;display:flex}.professor-contact b{margin-right:6px}.professor-contact a{color:var(--ink);align-items:center;gap:7px;margin-left:auto;font-weight:800;display:inline-flex}.professor-contact svg{width:16px}.hype-section{background:#e8edf2}.hype-lab{border:1px solid var(--line);background:var(--cream);grid-template-columns:1.55fr .75fr;display:grid}.hype-chart{padding:35px}.hype-chart svg{width:100%;overflow:visible}.hype-chart .area{fill:url(#area)}.hype-chart .curve{fill:none;stroke:var(--orange);stroke-width:7px;stroke-linecap:round}.hype-chart circle{fill:var(--ink);stroke:#fff;stroke-width:5px}.hype-chart text{fill:var(--muted);font-size:14px}.hype-chart input{width:100%;accent-color:var(--orange)}.hype-advice{background:var(--ink);color:#fff;flex-direction:column;justify-content:center;padding:40px;display:flex}.hype-advice svg{color:var(--mint);width:40px;height:40px}.hype-advice p{color:var(--mint);letter-spacing:.1em;margin-top:32px;font-size:11px}.hype-advice h3{font-size:28px;line-height:1.3}.hype-advice ul{color:#aeb9b5;gap:8px;margin:0;padding:0;line-height:1.6;list-style:none;display:grid}.hype-advice li:before{content:"→ ";color:var(--orange);font-weight:800}.case-grid{grid-template-columns:1.2fr .9fr .9fr;gap:13px;display:grid}.case-grid article{background:var(--ink);height:520px;position:relative;overflow:hidden}.case-grid img{object-fit:cover;filter:saturate(.8);width:100%;height:100%;transition:all .5s}.case-grid article:hover img{filter:saturate();transform:scale(1.04)}.case-overlay{color:#fff;background:linear-gradient(#0000 35%,#0a1411e6);flex-direction:column;justify-content:flex-end;padding:25px;display:flex;position:absolute;inset:0}.case-overlay>span{border:1px solid #ffffff80;padding:7px 9px;position:absolute;top:20px;right:20px}.case-overlay p{color:var(--mint);font-size:11px}.case-overlay h3{margin:5px 0;font-size:44px;line-height:1}.case-overlay b{max-width:360px;font-size:17px;line-height:1.45}.image-note{text-align:right;color:var(--muted);font-size:11px}.video-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.video-feature{background:var(--cream);border:1px solid var(--line)}.embed-wrap{aspect-ratio:16/9;background:var(--ink)}.embed-wrap iframe{border:0;width:100%;height:100%}.video-feature>div:last-child{padding:25px}.video-feature span{color:var(--orange);align-items:center;gap:7px;font-size:11px;font-weight:700;display:flex}.video-feature span svg{width:16px}.video-feature h3{margin:16px 0 8px;font-size:25px}.video-feature p{color:var(--muted);line-height:1.55}.text-link{color:var(--ink);align-items:center;gap:9px;margin-top:28px;font-weight:700;display:inline-flex}.text-link svg{width:18px}.quiz-layout{grid-template-columns:1.5fr .65fr;gap:20px;display:grid}.quiz-list{gap:14px;display:grid}.quiz-card{background:#20322d;padding:30px;position:relative}.quiz-card>span{color:#6b8279;font-size:42px;font-weight:800;position:absolute;top:18px;right:24px}.quiz-card h3{max-width:80%;margin:0 0 24px;font-size:23px}.quiz-card>div{gap:8px;display:grid}.quiz-card button{color:#fff;text-align:left;cursor:pointer;background:0 0;border:1px solid #ffffff29;align-items:center;gap:12px;width:100%;padding:15px;display:flex}.quiz-card button:hover{border-color:var(--mint)}.quiz-card button i{color:var(--mint);font-style:normal}.quiz-card button svg{width:17px;margin-left:auto}.quiz-card button.correct{background:var(--mint);color:var(--ink)}.quiz-card button.wrong{background:#7d342a}.feedback{color:#c0cbc7;align-items:flex-start;gap:10px;font-size:13px;line-height:1.5;display:flex}.feedback svg{flex:none;width:17px}.score-card{background:var(--orange);height:430px;padding:36px;position:sticky;top:95px}.score-card p{letter-spacing:.12em;font-size:11px}.score-card strong{margin:65px 0 14px;font-size:110px;line-height:1;display:block}.score-card strong small{font-size:28px}.score-card h3{font-size:24px}.score-card span{margin-top:30px;line-height:1.6;display:block}.score-card button{background:var(--ink);color:#fff;border:0;justify-content:space-between;padding:13px;display:flex;position:absolute;bottom:30px;left:36px;right:36px}.score-card button svg{width:17px}footer{background:var(--cream);justify-content:space-between;align-items:center;min-height:260px;padding:70px max(7vw,40px);display:flex}footer>div{align-items:center;gap:14px;display:flex}footer b,footer small{display:block}footer small,footer>p{color:var(--muted)}.section-pager{z-index:40;background:var(--cream);border:1px solid var(--line);align-items:center;display:flex;position:fixed;bottom:22px;right:24px;box-shadow:0 10px 35px #15231f1f}.section-pager button{cursor:pointer;background:0 0;border:0;place-items:center;width:43px;height:43px;display:grid}.section-pager button:disabled{opacity:.25}.section-pager svg{width:17px}.section-pager span{color:var(--muted);padding:0 4px;font-size:11px}@media (width<=900px){.lecture-section{padding:110px 24px 80px}.hero-question{display:none}.hero h1{font-size:clamp(54px,15vw,94px)}.hero-meta{flex-direction:column;gap:12px}.day-trace,.grade-grid,.orientation-flow{grid-template-columns:1fr 1fr}.overview-goals{grid-template-columns:1fr}.trace-card:nth-child(2){border-right:0}.trace-card{border-bottom:1px solid var(--line)}.lens-layout,.hype-lab,.quiz-layout,.chapter-map{grid-template-columns:1fr}.chapter-map article:first-child{grid-column:auto}.week-selector{grid-template-columns:repeat(3,1fr)}.week-columns{grid-template-columns:1fr}.week-columns>div{border-bottom:1px solid #ffffff2e;border-right:0;min-height:auto}.learning-goals{grid-template-columns:1fr}.learning-goals>div,.class-contract{grid-template-columns:1fr 1fr}.class-contract h3{grid-area:auto/1/auto/3}.professor-section{grid-template-columns:1fr}.professor-photo img{max-height:560px}.professor-facts{grid-template-columns:1fr}.decision-principle{grid-template-columns:160px 1fr}.case-grid{grid-template-columns:1fr}.case-grid article{height:420px}.video-grid{grid-template-columns:1fr}.score-card{position:relative;top:0}.brand span:nth-child(2){display:none}}@media (width<=560px){.topbar{padding:0 14px}.lecture-section{padding-left:18px;padding-right:18px}.section-title{margin-bottom:42px}.why-section .section-title h2{white-space:normal;text-wrap:balance;font-size:clamp(38px,12vw,58px)}.overview-section .section-title h2{white-space:normal;text-wrap:balance;font-size:clamp(38px,11vw,54px)}.day-trace,.grade-grid,.orientation-flow,.overview-goals ul{grid-template-columns:1fr}.orientation-flow article{min-height:230px}.decision-principle{grid-template-columns:1fr;gap:20px;font-size:22px}.trace-card{border-right:0}.lens-result{padding:36px 24px}.chapter-map article{min-height:auto}.chapter1-summary{grid-template-columns:1fr}.week-selector{grid-template-columns:1fr 1fr}.week-selector button{min-height:82px}.learning-goals>div,.class-contract{grid-template-columns:1fr}.class-contract h3{grid-column:auto}.professor-facts{grid-template-columns:1fr}.professor-contact{flex-direction:column;align-items:flex-start}.professor-contact a{margin-left:0}.hero-actions{flex-direction:column;align-items:stretch}.case-grid article{height:360px}footer{flex-direction:column;align-items:flex-start;gap:40px}.section-pager{bottom:12px;right:12px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}