/*! 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{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-font-weight:initial;--tw-outline-style:solid}::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-font-weight:initial;--tw-outline-style:solid}}}@layer theme{:root,:host{--spacing:.25rem;--container-sm:24rem;--container-xl:36rem;--container-3xl:48rem;--container-6xl:72rem;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--font-weight-semibold:600;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--ease-out:cubic-bezier(.23, 1, .32, 1);--ease-in-out:cubic-bezier(.77, 0, .175, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--sans);--default-mono-font-family:var(--mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::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]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-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{.visible{visibility:visible}.fixed{position:fixed}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.mx-auto{margin-inline:auto}.my-10{margin-block:calc(var(--spacing) * 10)}.mt-1{margin-top:var(--spacing)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mt-3{margin-top:calc(var(--spacing) * 3)}.mt-4{margin-top:calc(var(--spacing) * 4)}.mt-5{margin-top:calc(var(--spacing) * 5)}.mt-6{margin-top:calc(var(--spacing) * 6)}.mt-7{margin-top:calc(var(--spacing) * 7)}.mt-8{margin-top:calc(var(--spacing) * 8)}.mt-10{margin-top:calc(var(--spacing) * 10)}.mt-16{margin-top:calc(var(--spacing) * 16)}.mt-auto{margin-top:auto}.mb-4{margin-bottom:calc(var(--spacing) * 4)}.mb-6{margin-bottom:calc(var(--spacing) * 6)}.ml-1{margin-left:var(--spacing)}.flex{display:flex}.hidden{display:none}.inline{display:inline}.table{display:table}.min-h-dvh{min-height:100dvh}.w-full{width:100%}.max-w-3xl{max-width:var(--container-3xl)}.max-w-6xl{max-width:var(--container-6xl)}.max-w-prose{max-width:65ch}.max-w-sm{max-width:var(--container-sm)}.max-w-xl{max-width:var(--container-xl)}.min-w-0{min-width:0}.flex-1{flex:1}.flex-none{flex:none}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-baseline{align-items:baseline}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--spacing)}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-4{gap:calc(var(--spacing) * 4)}.gap-6{gap:calc(var(--spacing) * 6)}.px-4{padding-inline:calc(var(--spacing) * 4)}.text-center{text-align:center}.align-\[-2px\]{vertical-align:-2px}.font-display{font-family:var(--display)}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.text-bad{color:var(--bad)}.text-good{color:var(--good)}.text-muted{color:var(--muted)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.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 (min-width:40rem){.sm\:inline{display:inline}.sm\:inline-flex{display:inline-flex}.sm\:px-6{padding-inline:calc(var(--spacing) * 6)}}@media (min-width:80rem){.xl\:flex{display:flex}}}html,body{overflow-x:clip}html{-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;background:var(--bg)}body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;font-feature-settings:"kern", "liga";margin:0}a,button,[role=button],input,label,select{touch-action:manipulation}button,[role=button]{-webkit-user-select:none;user-select:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (pointer:coarse){input,select,textarea{font-size:max(16px,1em)}}.tabular{font-variant-numeric:tabular-nums}.press{transition:transform .16s var(--ease-out), background-color .16s var(--ease-out), border-color .16s var(--ease-out), color .16s var(--ease-out), box-shadow .16s var(--ease-out)}.press:active:not(:disabled){transform:scale(.97)}.btn{border-radius:var(--btn-radius,var(--radius));white-space:nowrap;cursor:pointer;justify-content:center;align-items:center;gap:.5rem;min-height:44px;padding:0 1.15rem;font-size:.95rem;font-weight:600;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-quiet{border:1px solid var(--line);color:var(--ink);background:var(--surface)}@media (hover:hover) and (pointer:fine){.btn-primary:hover:not(:disabled){filter:brightness(1.08)}.btn-quiet:hover:not(:disabled){border-color:var(--ink)}}.field{border:1px solid var(--line);border-radius:var(--field-radius,calc(var(--radius) * .6));background:var(--surface);width:100%;min-height:44px;color:var(--ink);padding:.55rem .75rem;font-size:.95rem}.field:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.eyebrow{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-size:.72rem}.lesson-html{color:var(--ink);font-size:1.0625rem;line-height:1.7}.lesson-html>*+*{margin-top:1.1em}.lesson-html p{max-width:68ch}.lesson-html .lead{font-family:var(--lead-font,var(--display));max-width:60ch;color:var(--ink);font-size:1.3rem;line-height:1.5}.lesson-html h3{font-family:var(--display);text-wrap:balance;margin-top:1.8em;font-size:1.2rem;font-weight:600}.lesson-html strong{font-weight:650}.lesson-html .hi{background:var(--accent-soft);border-radius:3px;padding:0 .2em}.lesson-html table.t{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:.92rem;line-height:1.45;display:block;overflow-x:auto}.lesson-html table.t th{text-align:left;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:1.5px solid var(--ink);white-space:nowrap;padding:.6rem .75rem;font-size:.75rem;font-weight:600}.lesson-html table.t td{border-bottom:1px solid var(--line);vertical-align:top;padding:.6rem .75rem}.lesson-html table.t .num,.lesson-html table.t td.num{text-align:right;white-space:nowrap}.lesson-html table.t tr.hl td{background:var(--accent-soft)}.lesson-html table.t tr.tot td{border-top:1.5px solid var(--ink);border-bottom:0;font-weight:700}.lesson-html .terms{border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--surface);border-radius:calc(var(--radius) * .5);padding:.9rem 1.1rem;font-size:.95rem;line-height:1.6}.lesson-html .terms .tag,.lesson-html .card .tag{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:.35rem;font-size:.68rem}.lesson-html .terms .term+.term{margin-top:.6rem}.lesson-html .callout{border-radius:calc(var(--radius) * .5);background:var(--accent-soft);color:var(--ink);padding:1rem 1.2rem}.lesson-html .fact{border-radius:calc(var(--radius) * .5);background:var(--fact-bg,var(--ink));color:var(--fact-ink,var(--bg));padding:1.1rem 1.3rem}.lesson-html .grid2{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.9rem;display:grid}.lesson-html .card{border:1px solid var(--line);border-radius:calc(var(--radius) * .6);background:var(--surface);padding:1rem 1.1rem}.lesson-html .card.accent{border-color:var(--accent);box-shadow:inset 0 3px 0 var(--accent)}.lesson-html .card p{margin-top:.35rem;font-size:.95rem}.lesson-html ol.steps{counter-reset:s;padding:0;list-style:none}.lesson-html ol.steps>li{counter-increment:s;margin-top:.75rem;padding-left:2.6rem;position:relative}.lesson-html ol.steps>li:before{content:counter(s);border:1.5px solid var(--accent);width:1.75rem;height:1.75rem;color:var(--accent);border-radius:50%;place-items:center;font-size:.8rem;font-weight:700;display:grid;position:absolute;top:.1rem;left:0}.lesson-html ul,.lesson-html ol:not(.steps){padding-left:1.3rem}.lesson-html li+li{margin-top:.35rem}.lesson-html .formula{font-family:var(--mono);border:1px dashed var(--line);border-radius:calc(var(--radius) * .5);background:var(--surface);padding:1rem 1.2rem;font-size:.92rem;overflow-x:auto}.lesson-html .formula .fx{color:var(--accent);font-weight:700}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:1ms!important;animation-duration:1ms!important}}.fig{border-top:2px solid var(--fig-ink);color:var(--ink)}.fig-cap{border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin-bottom:18px;padding:12px 0 14px;display:flex}.fig-n{font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--fig-accent);font-size:.7rem;font-weight:600}.fig-t{font-family:var(--display);text-wrap:balance;flex:1;min-width:200px;font-size:1.05rem;font-weight:600}.fig-u{color:var(--muted);font-size:.75rem}.fig-replay,.fig-ib{border:1px solid var(--line);width:32px;height:32px;color:var(--muted);background:var(--surface);border-radius:999px;place-items:center;display:inline-grid}.fig-ib:disabled{opacity:.35}.fig-scroll{overflow-x:auto}.fig-svg{width:100%;min-width:520px;height:auto;display:block}.fig-key{color:var(--muted);flex-wrap:wrap;gap:8px 18px;margin-top:12px;font-size:.8rem;display:flex}.fig-key span{align-items:center;gap:7px;display:inline-flex}.fig-key i{width:12px;height:12px;display:inline-block}.fig-key i.hol{border:1.5px solid var(--fig-ink);background:var(--fig-paper)}.fig-note{border-top:1px solid var(--line);color:var(--muted);margin:14px 0 0;padding-top:10px;font-size:.82rem;line-height:1.55}.fig-walk{border:1px solid var(--line);background:var(--surface);min-height:36px;color:var(--ink);border-radius:999px;align-items:center;gap:.45rem;margin-top:14px;padding:0 .9rem;font-size:.85rem;font-weight:600;display:inline-flex}.fig-walkbar{border-radius:calc(var(--radius) * .6);background:var(--accent-soft);align-items:center;gap:12px;margin-top:14px;padding:10px 12px;font-size:.92rem;display:flex}.fig-walkstep{font-family:var(--mono);color:var(--muted);font-size:.75rem}.fig-walkcap{flex:1;min-width:0}.fig-flow{grid-template-columns:repeat(var(--n), minmax(0, 1fr));margin:0;padding:0;list-style:none;display:grid}.fig-flow li{background:var(--surface);border:1px solid var(--line);transition:background-color .2s var(--ease-out), color .2s var(--ease-out);flex-direction:column;gap:6px;margin-right:14px;padding:14px 16px 16px;display:flex;position:relative}.fig-flow li:last-child{margin-right:0}.fig-flow li:not(:last-child):after{content:"";border-top:1.5px solid var(--fig-ink);border-right:1.5px solid var(--fig-ink);width:10px;height:10px;position:absolute;top:50%;right:-12px;transform:translateY(-50%)rotate(45deg)}.fig-flow li.hi{background:var(--fig-accent);border-color:var(--fig-accent);color:var(--accent-ink)}.fig-flow li.hi .fig-fd{color:inherit;opacity:.85}.fig-flow li.hi .fig-fn{color:inherit;border-color:currentColor}.fig-fn{border:1.5px solid var(--fig-accent);width:24px;height:24px;color:var(--fig-accent);border-radius:50%;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:inline-flex}.fig-flow b{font-size:.9rem;line-height:1.3}.fig-fd{color:var(--muted);font-size:.8rem;line-height:1.45}.fig-matrix{grid-template-columns:46px minmax(0,1fr);gap:6px;display:grid}.fig-my{color:var(--muted);text-align:center;flex-direction:column;justify-content:space-between;align-items:center;gap:8px;font-size:11px;display:flex}.fig-my em{writing-mode:vertical-rl;letter-spacing:.12em;text-transform:uppercase;flex:1;justify-content:center;align-items:center;font-size:11px;font-style:normal;font-weight:600;display:flex;transform:rotate(180deg)}.fig-mg{border-top:1.5px solid var(--fig-ink);border-left:1.5px solid var(--fig-ink);grid-template-columns:1fr 1fr;display:grid}.fig-mc{border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);flex-direction:column;gap:6px;min-height:96px;padding:16px;display:flex}.fig-mc b{font-size:.92rem}.fig-mc span{color:var(--muted);font-size:.82rem;line-height:1.5}.fig-mc.hi,.fig-cc.hi{background:var(--accent-soft);box-shadow:inset 0 3px 0 var(--fig-accent)}.fig-mx{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);grid-column:2;justify-content:space-between;font-size:11px;font-weight:600;display:flex}.fig-mx span{letter-spacing:0;text-transform:none;font-weight:400}.fig-kpis{border-left:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(min(100%,9rem),1fr));display:grid}.fig-kpis>div{border-right:1px solid var(--line);flex-direction:column;gap:6px;padding:6px 18px 4px;display:flex}.fig-kpis b{font-family:var(--display);font-size:1.9rem;font-weight:600;line-height:1.05}.fig-kpis .hi b{color:var(--fig-accent)}.fig-kpis span{color:var(--muted);font-size:.8rem;line-height:1.45}.fig-compare{border:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(200px,1fr));display:grid}.fig-cc{background:var(--surface);border-right:1px solid var(--line);padding:16px 18px}.fig-cc:last-child{border-right:0}.fig-cc h4{letter-spacing:.14em;text-transform:uppercase;margin:0 0 10px;font-size:.75rem;font-weight:600}.fig-cc ul{color:var(--muted);margin:0;padding-left:18px;font-size:.86rem;line-height:1.5}.fig-cc li+li{margin-top:6px}@media (max-width:760px){.fig-flow{grid-template-columns:1fr}.fig-flow li{margin:0 0 12px}.fig-flow li:not(:last-child):after{top:auto;bottom:-10px;right:50%;transform:translate(50%)rotate(135deg)}.fig-kpis{grid-template-columns:1fr 1fr}.fig-kpis>div{border-bottom:1px solid var(--line);padding:12px 14px}.fig-compare{grid-template-columns:1fr}.fig-cc{border-right:0;border-bottom:1px solid var(--line)}}@media (max-width:520px){.fig-mc{min-height:0;padding:12px}.fig-t{min-width:0}.fig-scroll:after{content:"Swipe sideways to see the full chart →";font-family:var(--mono);color:var(--muted);padding-top:6px;font-size:11px;display:block;position:sticky;left:0}}@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-font-weight{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}.link{color:var(--accent);text-underline-offset:3px;text-decoration:underline;text-decoration-thickness:1px}.text-muted{color:var(--muted)}.text-good{color:var(--good)}.text-bad{color:var(--bad)}.font-display{font-family:var(--display)}.page-head{padding-block:2.5rem 1.75rem}.page-title{font-family:var(--display);letter-spacing:var(--display-tracking,-.01em);font-size:clamp(1.9rem,4vw,2.75rem);line-height:1.08;font-weight:var(--display-weight,600);text-wrap:balance}.section{padding-block:2.5rem}.section-title{font-family:var(--display);font-size:1.45rem;font-weight:var(--display-weight,600);text-wrap:balance;margin-bottom:1.1rem}.back-link{color:var(--muted);align-items:center;gap:.35rem;margin-top:1.5rem;font-size:.9rem;display:inline-flex}.badge{border:1px solid var(--line);color:var(--muted);white-space:nowrap;border-radius:999px;align-items:center;gap:.3rem;padding:.2rem .6rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-good{background:var(--good-soft);color:var(--good);border-color:#0000}.notice{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:1.25rem 1.4rem}.form-error{color:var(--bad);font-size:.875rem}.btn-danger{background:var(--bad);color:#fff}.spinner{justify-content:center;gap:6px;padding:4rem 0;display:flex}.spinner span{background:var(--muted);width:7px;height:7px;animation:dot .9s var(--ease-in-out) infinite;border-radius:50%}.spinner span:nth-child(2){animation-delay:.12s}.spinner span:nth-child(3){animation-delay:.24s}@keyframes dot{0%,to{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-4px)}}.lock-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-block:2.5rem;padding:2rem}.lock-icon{background:var(--accent-soft);width:40px;height:40px;color:var(--accent);border-radius:999px;place-items:center;margin-bottom:1rem;display:inline-grid}.catalog-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:1.25rem;padding-bottom:4rem;display:grid}.course-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);flex-direction:column;gap:.6rem;height:100%;padding:1.5rem;display:flex}@media (hover:hover) and (pointer:fine){.course-card:hover{border-color:var(--ink)}}.course-card-title{font-family:var(--display);font-size:1.5rem;line-height:1.15;font-weight:var(--display-weight,600)}.course-stats{border-top:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;margin-top:.5rem;padding-top:.9rem;display:grid}.course-stats dt{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem}.course-stats dd{font-size:1.05rem;font-weight:650}.course-card-foot{justify-content:space-between;align-items:center;margin-top:auto;padding-top:.75rem;display:flex}.course-hero{gap:2rem;padding-block:2.5rem 1rem;display:grid}@media (min-width:900px){.course-hero{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);align-items:end}}.course-lede{color:var(--muted);max-width:60ch;margin-top:1rem;font-size:1.15rem;line-height:1.6}.hero-facts{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.hero-fact{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:.9rem}.hero-fact dt{color:var(--muted);align-items:center;gap:.35rem;font-size:.72rem;display:flex}.hero-fact dd{margin-top:.2rem;font-size:1.3rem;font-weight:650}.audience-grid,.capstone-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:1rem;display:grid}.audience,.capstone{border:1px solid var(--line);border-radius:calc(var(--radius) * .75);background:var(--surface);padding:1.1rem 1.2rem}.traps{flex-wrap:wrap;gap:.35rem;margin-top:.75rem;display:flex}.traps li{background:var(--raised);color:var(--muted);border-radius:999px;padding:.15rem .5rem;font-size:.72rem}.syllabus{gap:1rem;display:grid}.syllabus-ch{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}.syllabus-head{align-items:flex-start;gap:1rem;padding:1.2rem 1.3rem;display:flex}.syllabus-code,.path-code{font-family:var(--mono);color:var(--accent);min-width:2.2rem;font-weight:700}.syllabus-title,.path-title{font-family:var(--display);font-size:1.15rem;font-weight:var(--display-weight,600);line-height:1.25}.syllabus-lessons li{border-top:1px solid var(--line);gap:.9rem;padding:.6rem 1.3rem;font-size:.95rem;display:flex}.syllabus-lessons li.is-case{background:var(--raised)}.dash-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;padding-block:2.5rem 1.5rem;display:flex}.dash-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1rem;display:grid}.dash-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:1.35rem}.dash-card.is-locked{opacity:.75}.dash-continue{background:var(--continue-bg,var(--surface));color:var(--continue-ink,var(--ink));border-color:var(--continue-line,var(--line))}.dash-next{font-family:var(--display);font-size:1.35rem;line-height:1.2;font-weight:var(--display-weight,600);margin-top:.5rem}.dash-big{font-family:var(--display);margin-top:.5rem;font-size:2.6rem;font-weight:700;line-height:1}.dash-streak{color:var(--accent);align-items:center;gap:.4rem;margin-top:1rem;font-size:.9rem;font-weight:600;display:flex}.pring{flex:none;place-items:center;display:inline-grid;position:relative}.pring svg{position:absolute;inset:0}.pring-label{font-size:.8rem;font-weight:700}.path{gap:1rem;display:grid}.path-ch{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}.path-ch.is-locked .path-lessons{opacity:.6}.path-head{align-items:center;gap:1rem;padding:1.1rem 1.25rem;display:flex}.path-lessons{border-top:1px solid var(--line)}.path-lesson{align-items:center;gap:.8rem;min-height:48px;padding:.7rem 1.25rem;font-size:.95rem;display:flex}@media (hover:hover) and (pointer:fine){.path-lesson:hover{background:var(--raised)}}.path-lesson+.path-lesson,.path-lessons li+li .path-lesson{border-top:1px solid var(--line)}.path-extra{background:color-mix(in srgb, var(--raised) 60%, transparent)}.path-dot{border:1.5px solid var(--line);border-radius:50%;flex:none;place-items:center;width:20px;height:20px;display:grid}.path-lesson.is-done .path-dot,.path-dot.is-passed{background:var(--good);border-color:var(--good);color:#fff}.path-dot.is-case{border-style:dashed;border-color:var(--accent)}.path-dot.is-test{border-color:var(--ink);border-radius:5px}.path-paywall{border-top:1px dashed var(--line);background:var(--accent-soft);padding:1rem 1.25rem}.capstone-links{margin-top:.75rem}.capstone-links li{border-top:1px solid var(--line);align-items:center;gap:.75rem;padding:.45rem 0;font-size:.92rem;display:flex}.lesson-shell{max-width:46rem;margin:0 auto;padding:0 1rem 6rem}.lesson-top{z-index:20;padding:calc(.75rem + env(safe-area-inset-top,0px)) 0 .75rem;background:color-mix(in srgb, var(--bg) 90%, transparent);-webkit-backdrop-filter:blur(10px);align-items:center;gap:.75rem;display:flex;position:sticky;top:0}.lesson-steps{flex:1;gap:4px;display:flex}.lesson-steps span{background:var(--line);height:4px;transition:background-color .3s var(--ease-out);border-radius:999px;flex:1}.lesson-steps span.is-done{background:var(--accent)}.lesson-steps span.is-now{background:color-mix(in srgb, var(--accent) 45%, var(--line))}.lesson-steps span.is-quiz{flex:1.5}.lesson-head{padding-block:1.75rem .75rem}.lesson-title{font-family:var(--display);font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.12;font-weight:var(--display-weight,600);letter-spacing:var(--display-tracking,-.01em);text-wrap:balance;margin-top:.4rem}.page-h{font-family:var(--display);font-size:1.35rem;font-weight:var(--display-weight,600);text-wrap:balance;margin:1.5rem 0 1.25rem}.lesson-chunk>*+*{margin-top:1.1em}.lesson-nav{border-top:1px solid var(--line);justify-content:space-between;gap:.75rem;margin-top:2.5rem;padding-top:1.25rem;display:flex}.warm-head{align-items:flex-start;gap:1rem;display:flex}.warm-icon{background:var(--accent-soft);width:40px;height:40px;color:var(--accent);border-radius:12px;flex:none;place-items:center;margin-top:1.5rem;display:grid}.warm-cards{gap:1rem;margin-top:1.5rem;display:grid}@media (min-width:640px){.warm-cards{grid-template-columns:1fr 1fr}}.recap-field{resize:vertical;min-height:7rem;margin-top:1.25rem;line-height:1.55}.takeaways{counter-reset:t;gap:.6rem;margin-top:.75rem;display:grid}.takeaways li{counter-increment:t;border:1px solid var(--line);border-radius:calc(var(--radius) * .6);background:var(--surface);padding:.9rem 1rem .9rem 3rem;line-height:1.55;position:relative}.takeaways li:before{content:counter(t);font-family:var(--mono);color:var(--accent);font-weight:700;position:absolute;top:.9rem;left:1rem}.next-up{border-radius:var(--radius);background:var(--accent-soft);margin-top:2rem;padding:1.25rem}.widget{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--widget-shadow,none);margin-top:2.5rem;padding:1.4rem}.widget-head{margin-bottom:1rem}.widget-hint{color:var(--muted);margin-bottom:.9rem;font-size:.9rem}.widget-actions{flex-wrap:wrap;gap:.6rem;margin-top:1.25rem;display:flex}.widget-result{border-radius:calc(var(--radius) * .6);background:var(--raised);margin-top:1rem;padding:.9rem 1rem;font-size:.95rem;line-height:1.55}.widget-result.is-good{background:var(--good-soft)}.choice-list{gap:.7rem;display:grid}.choice-list>li{border:1px solid var(--line);border-radius:calc(var(--radius) * .6);background:var(--bg);transition:border-color .2s var(--ease-out), background-color .2s var(--ease-out);padding:.85rem .95rem}.row-good{border-color:color-mix(in srgb, var(--good) 55%, transparent)!important;background:var(--good-soft)!important}.row-bad{border-color:color-mix(in srgb, var(--bad) 55%, transparent)!important;background:var(--bad-soft)!important}.choice-text{align-items:flex-start;gap:.55rem;font-size:.95rem;line-height:1.5;display:flex}.choice-fb{color:var(--muted);margin-top:.5rem;font-size:.875rem;line-height:1.5}.mark{color:#fff;border-radius:50%;flex:none;place-items:center;width:20px;height:20px;margin-top:1px;display:grid}.mark-good{background:var(--good)}.mark-bad{background:var(--bad)}.pills{flex-wrap:wrap;gap:.4rem;margin-top:.65rem;display:flex}.pill,.chip{border:1px solid var(--line);background:var(--surface);min-height:38px;color:var(--ink);border-radius:999px;padding:0 .85rem;font-size:.85rem}.pill.is-on,.chip.is-on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.pill.is-answer{box-shadow:0 0 0 2px var(--good)}.choice-list select.field{margin-top:.6rem}.order-list{gap:.5rem;display:grid}.order-item{border:1px solid var(--line);border-radius:calc(var(--radius) * .6);background:var(--bg);cursor:grab;touch-action:pan-y;align-items:center;gap:.6rem;padding:.6rem .7rem;display:flex}.order-item:active{cursor:grabbing}.order-grip{color:var(--faint);flex:none}.order-n{font-family:var(--mono);color:var(--accent);width:1.1rem;font-size:.8rem;font-weight:700}.order-text{flex:1;min-width:0;font-size:.93rem;line-height:1.45}.order-btns{gap:.3rem;display:flex}.num-wrap{flex-wrap:wrap;align-items:center;gap:.4rem;margin-top:.6rem;display:flex}.num-input{text-align:right;width:9rem}.num-aff{color:var(--muted);font-size:.9rem}.numeric-intro{margin-bottom:1rem;font-size:.95rem}.reveal-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:.6rem;display:grid}.reveal-card{text-align:left;border:1px solid var(--line);border-radius:calc(var(--radius) * .6);background:var(--bg);flex-direction:column;gap:.45rem;padding:.9rem 1rem;display:flex}.reveal-card.is-open{border-color:var(--accent);background:var(--accent-soft)}.reveal-t{font-weight:650}.reveal-d{color:var(--ink);-webkit-user-select:text;user-select:text;font-size:.9rem;line-height:1.5;overflow:hidden}.calc{gap:1.25rem;display:grid}@media (min-width:760px){.calc{grid-template-columns:1fr 1fr}}.calc-legend{margin-bottom:.5rem;font-size:.92rem;font-weight:650}.calc-cb{border-bottom:1px solid var(--line);align-items:center;gap:.6rem;padding:.5rem 0;font-size:.9rem;display:flex}.calc-cb input,.calc-slider input{accent-color:var(--accent)}.calc-cb input{width:18px;height:18px}.calc-slider{gap:.35rem;margin-top:1rem;font-size:.9rem;display:grid}.calc-slider span{justify-content:space-between;gap:.5rem;display:flex}.calc-slider output{font-weight:700}.calc-out{border-radius:calc(var(--radius) * .6);background:var(--calc-bg,var(--raised));color:var(--calc-ink,var(--ink));align-self:start;padding:1rem 1.1rem}.calc-line{border-bottom:1px solid color-mix(in srgb, currentColor 14%, transparent);justify-content:space-between;gap:1rem;padding:.5rem 0;font-size:.9rem;display:flex}.calc-line.is-total{border-bottom-width:2px;font-size:1.05rem;font-weight:750}.calc-tasks{grid-column:1/-1}.calc-tasks ol{gap:.35rem;margin-top:.5rem;padding-left:1.2rem;font-size:.92rem;line-height:1.55;list-style:decimal;display:grid}.quiz{margin-top:.5rem}.quiz-progress{gap:4px;margin-bottom:1.5rem;display:flex}.quiz-progress span{background:var(--line);border-radius:999px;flex:1;height:4px}.quiz-progress .is-done{background:var(--accent)}.quiz-progress .is-now{background:color-mix(in srgb, var(--accent) 40%, var(--line))}.quiz-q{font-family:var(--quiz-font,var(--sans));text-wrap:pretty;margin:.5rem 0 1.25rem;font-size:1.2rem;font-weight:600;line-height:1.45}.quiz-options{gap:.6rem;display:grid}.quiz-option{text-align:left;border:1.5px solid var(--line);border-radius:calc(var(--radius) * .7);background:var(--surface);align-items:flex-start;gap:.8rem;width:100%;padding:.9rem 1rem;font-size:.97rem;line-height:1.5;display:flex}@media (hover:hover) and (pointer:fine){.quiz-option:hover:not(:disabled){border-color:var(--ink)}}.quiz-option.is-picked{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.quiz-option.is-right{border-color:var(--good);background:var(--good-soft)}.quiz-option.is-wrong{border-color:var(--bad);background:var(--bad-soft)}.quiz-option.is-dim{opacity:.55}.quiz-dot{border:1.5px solid var(--line);border-radius:50%;flex:none;place-items:center;width:20px;height:20px;margin-top:2px;display:grid}.quiz-option.is-picked .quiz-dot{border:6px solid var(--accent)}.quiz-option.is-right .quiz-dot{background:var(--good);border-color:var(--good);color:#fff}.quiz-option.is-wrong .quiz-dot{background:var(--bad);border-color:var(--bad);color:#fff}.quiz-sure{transition:opacity .2s var(--ease-out);flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1.25rem;display:flex}.quiz-sure.is-waiting{opacity:.55}.quiz-sure-label{color:var(--muted);margin-right:.25rem;font-size:.85rem}.quiz-feedback{border-radius:calc(var(--radius) * .7);margin-top:1.25rem;padding:1rem 1.1rem;line-height:1.55}.quiz-feedback.is-good{background:var(--good-soft)}.quiz-feedback.is-bad{background:var(--bad-soft)}.quiz-note{color:var(--muted);margin-top:.6rem;font-size:.9rem}.quiz-verdict{max-width:60ch;margin-top:1rem;font-size:1.05rem;line-height:1.55}.dial{width:120px;height:120px;position:relative}.dial-text{text-align:center;place-content:center;display:grid;position:absolute;inset:0}.dial-text b{font-size:1.6rem;font-family:var(--display)}.dial-text span{color:var(--muted);font-size:.72rem}.review-list{gap:.75rem;margin-top:1.5rem;display:grid}.review-list>li{border:1px solid var(--line);border-left:3px solid var(--good);border-radius:calc(var(--radius) * .6);background:var(--surface);padding:1rem 1.1rem}.review-list>li.is-bad{border-left-color:var(--bad)}.review-head{gap:.75rem;font-weight:600;line-height:1.45;display:flex}.review-n{font-family:var(--mono);color:var(--muted)}.review-line{align-items:baseline;gap:.4rem;margin-top:.45rem;font-size:.9rem;display:flex}.review-why{color:var(--muted);margin-top:.5rem;font-size:.9rem;line-height:1.55}.exam-bar{z-index:15;padding:calc(.8rem + env(safe-area-inset-top,0px)) 0 .8rem;background:var(--bg);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:.75rem 1.25rem;display:flex;position:sticky;top:0}.exam-clock{align-items:center;gap:.35rem;margin-left:auto;font-weight:700;display:inline-flex}.exam-clock.is-low{color:var(--bad)}.exam-grid{flex-wrap:wrap;gap:.35rem;margin:1rem 0 1.5rem;display:flex}.exam-cell{border:1px solid var(--line);background:var(--surface);border-radius:8px;width:34px;height:34px;font-size:.78rem}.exam-cell.is-answered{background:var(--accent-soft);border-color:color-mix(in srgb, var(--accent) 40%, var(--line))}.exam-cell.is-flagged{box-shadow:inset 0 -3px 0 var(--bad)}.exam-cell.is-now{border:2px solid var(--ink)}.exam-actions{flex-wrap:wrap;justify-content:space-between;gap:.6rem;margin-top:2rem;display:flex}.exam-actions .is-flag{border-color:var(--bad);color:var(--bad)}.exam-confirm{border-radius:var(--radius);border:1px solid var(--line);background:var(--raised);gap:.75rem;margin-top:1rem;padding:1rem 1.1rem;display:grid}.by-chapter{gap:.5rem;display:grid}.by-row{grid-template-columns:2.5rem 1fr 3rem;align-items:center;gap:.75rem;font-size:.9rem;display:grid}.by-bar{background:var(--line);border-radius:999px;height:8px;overflow:hidden}.by-bar span{background:var(--accent);height:100%;display:block}.attempts li{border-bottom:1px solid var(--line);grid-template-columns:1fr 4rem 5rem auto;align-items:center;gap:.5rem;padding:.6rem 0;display:grid}.flip{perspective:1200px;text-align:left;width:100%;display:block}.flip-inner{min-height:15rem;transform-style:preserve-3d;position:relative}.flip-face{border-radius:var(--radius);border:1px solid var(--line);background:var(--card-bg,var(--surface));box-shadow:var(--card-shadow,0 1px 2px #0000000d);backface-visibility:hidden;flex-direction:column;gap:.75rem;padding:1.5rem;display:flex;position:absolute;inset:0}.flip-back{background:var(--card-back-bg,var(--accent-soft));transform:rotateY(180deg)}.flip-text{font-family:var(--card-font,var(--display));text-wrap:pretty;flex:1;align-items:center;font-size:1.2rem;line-height:1.45;display:flex}.flip-hint{color:var(--muted);font-size:.78rem}.session{gap:1rem;max-width:34rem;margin:0 auto 4rem;display:grid}.session-meta{color:var(--muted);justify-content:space-between;font-size:.85rem;display:flex}.session .flip-inner{min-height:18rem}.grades{grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;display:grid}.grades.is-waiting{grid-template-columns:1fr}.grade{border-radius:calc(var(--radius) * .7);border:1px solid var(--line);background:var(--surface);flex-direction:column;justify-content:center;align-items:center;gap:.1rem;min-height:56px;font-size:.9rem;display:flex}.grade span{color:var(--muted);font-size:.7rem}.grade-1 b{color:var(--bad)}.grade-4 b{color:var(--good)}.session-done{text-align:center;padding:3rem 1rem}.case{padding-block:1.5rem 5rem}.case-track{gap:4px;margin-bottom:2rem;display:flex}.case-track span{background:var(--line);border-radius:999px;flex:1;height:6px}.case-track .is-now{background:color-mix(in srgb, var(--accent) 50%, var(--line))}.case-track .is-good{background:var(--good)}.case-track .is-part{background:color-mix(in srgb, var(--good) 50%, var(--bad))}.case-track .is-bad{background:var(--bad)}.case-title{font-family:var(--display);font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.12;font-weight:var(--display-weight,600);text-wrap:balance;margin-top:.4rem}.case-step-title{font-family:var(--display);font-size:1.45rem;font-weight:var(--display-weight,600);margin-top:.4rem}.case-q{margin:1.5rem 0 1rem;font-size:1.08rem;font-weight:600;line-height:1.5}.case-fb{color:var(--muted);margin:.4rem 0 .5rem 2.6rem;font-size:.9rem;line-height:1.55}.case-pts{color:var(--muted);white-space:nowrap;margin-left:auto;font-size:.78rem}.adjust{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.adjust-row{border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap;align-items:center;gap:.6rem 1rem;padding:.75rem 1rem;font-size:.93rem;display:flex}.adjust-row .case-fb{margin-left:0}.adjust-row.is-base{background:var(--raised);justify-content:space-between;font-weight:650}.adjust-row.is-total{background:var(--raised);border-bottom:0;justify-content:space-between;font-weight:750}.seg{border:1px solid var(--line);border-radius:999px;display:inline-flex;overflow:hidden}.seg-btn{background:var(--surface);min-height:34px;padding:0 .8rem;font-size:.8rem}.seg-btn.is-on{background:var(--accent);color:var(--accent-ink)}.sheet-scrim{z-index:60;background:#00000059;position:fixed;inset:0}.sheet{z-index:61;background:var(--bg);border-left:1px solid var(--line);width:min(100%,30rem);padding:calc(1rem + env(safe-area-inset-top,0px)) 1.25rem calc(1rem + env(safe-area-inset-bottom,0px));flex-direction:column;display:flex;position:fixed;top:0;bottom:0;right:0}.sheet-head{justify-content:space-between;gap:1rem;display:flex}.sheet-form{border:1px solid var(--line);background:var(--surface);border-radius:999px;align-items:center;gap:.5rem;margin-top:1rem;padding:.35rem .35rem .35rem .85rem;display:flex}.sheet-input{min-width:0;color:var(--ink);background:0 0;border:0;outline:none;flex:1;font-size:.95rem}.sheet-body{overscroll-behavior:contain;flex:1;margin-top:1rem;overflow-y:auto}.passage{border-bottom:1px solid var(--line);padding:.9rem 0}.passage-text{-webkit-user-select:text;user-select:text;font-size:.95rem;line-height:1.6}.passage-link{color:var(--accent);margin-top:.4rem;font-size:.82rem;font-weight:600;display:inline-block}.search{color:var(--muted);align-items:center;gap:.6rem;display:flex}.glossary{margin:1.5rem 0 4rem}.glossary>div{border-bottom:1px solid var(--line);padding:1rem 0}.glossary dt{align-items:baseline;gap:.6rem;font-weight:700;display:flex}.glossary dd{color:var(--muted);max-width:70ch;margin-top:.3rem;line-height:1.6}.auth-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);gap:1rem;max-width:26rem;margin:3rem auto 4rem;padding:2rem;display:grid}.form-row{gap:.35rem;font-size:.9rem;font-weight:600;display:grid}.danger{border:1px solid color-mix(in srgb, var(--bad) 40%, var(--line));border-radius:var(--radius);margin-top:3rem;padding:1.5rem}.legal{padding-block:3rem 5rem}.hdr-link{color:var(--muted);transition:color .15s var(--ease-out);font-size:.92rem;font-weight:500}.hdr-link.active,.hdr-link:hover{color:var(--ink)}.hdr-account{align-items:center;gap:.5rem;font-size:.92rem;font-weight:600;display:inline-flex}.hdr-avatar{background:var(--accent);width:32px;height:32px;color:var(--accent-ink);border-radius:999px;place-items:center;font-size:.85rem;display:grid}.hdr-burger{width:44px;height:44px;color:var(--ink);border-radius:10px;place-items:center;display:inline-grid}.mobile-menu{background:var(--bg);border-bottom:1px solid var(--line);padding:.5rem 1rem 1rem;display:grid;position:absolute;top:100%;left:0;right:0;box-shadow:0 20px 40px -20px #0003}.mobile-menu a{border-bottom:1px solid var(--line);padding:.85rem 0;font-weight:600}@media (min-width:1280px){.hdr-burger{display:none}}@media (max-width:639.98px){.hdr-start{display:none!important}}.hdr-link,.at-pill-link{white-space:nowrap}.mobile-menu .btn{border-bottom:0;justify-content:center;padding:.75rem 1rem}.wm-text{gap:.2rem;min-width:0;line-height:1.1;display:grid}.wm-text .wm-tag{font-family:var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);white-space:normal;text-wrap:balance;max-width:17rem;font-size:.62rem;font-weight:700}.foot-cols{flex-wrap:wrap;gap:1.5rem 3rem;font-size:.9rem;display:flex}.foot-cols>div{align-content:start;gap:.15rem;display:grid}.foot-cols a{color:var(--muted);align-items:center;min-height:36px;display:inline-flex}.foot-t{color:var(--ink);letter-spacing:.06em;text-transform:uppercase;margin-bottom:.25rem;font-size:.8rem;font-weight:700}.foot-notice{max-width:60rem;margin-bottom:.5rem;line-height:1.5}.calc-line>span:last-child{white-space:nowrap}.demo-q-text{margin:.5rem 0 1rem;font-weight:600;line-height:1.5}.demo-cards{gap:1rem;display:grid}.demo-skeleton{border-radius:var(--radius);background:linear-gradient(90deg, var(--raised), var(--surface), var(--raised));background-size:200% 100%;min-height:12rem;animation:1.4s linear infinite shimmer}@keyframes shimmer{to{background-position:-200% 0}}.prog-wrap{max-width:76rem;margin:0 auto;padding-inline:1rem}@media (min-width:640px){.prog-wrap{padding-inline:2rem}}.prog-head{background:var(--surface);border-bottom:1px solid var(--line);padding-block:clamp(2rem,5vw,3.5rem)}.prog-crumb{color:var(--muted);gap:.5rem;font-size:.85rem;display:flex}.prog-crumb a{color:var(--accent)}.prog-h1{font-family:var(--display);letter-spacing:-.02em;text-wrap:balance;margin-top:.75rem;font-size:clamp(2.2rem,5vw,3.6rem);font-weight:600;line-height:1.05}.prog-body{grid-template-columns:minmax(0,1fr);gap:clamp(3rem,7vw,5rem);padding-block:clamp(2.5rem,6vw,4.5rem) clamp(3rem,7vw,6rem);display:grid}.prog-lead{max-width:46rem;margin-bottom:2rem}.prog-h2{font-family:var(--display);letter-spacing:-.015em;text-wrap:balance;margin-top:.6rem;font-size:clamp(1.6rem,3.4vw,2.5rem);font-weight:600;line-height:1.12}.prog-lede{color:var(--muted);max-width:62ch;margin-top:1rem;font-size:1.08rem;line-height:1.65}.prog-h3{font-family:var(--display);font-size:1.2rem;font-weight:600;line-height:1.25}.prog-num{font-family:var(--mono);color:var(--accent);font-size:.8rem}.prog-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:1rem;display:grid}.prog-card{background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--accent);border-radius:var(--radius);align-content:start;gap:.6rem;padding:1.5rem;display:grid}.prog-card p,.prog-rules p,.prog-steps p,.tier>p,.exam-card p{color:var(--muted);line-height:1.6}.prog-rules{border-top:1px solid var(--ink);display:grid}.prog-rules li{border-bottom:1px solid var(--line);grid-template-columns:3.5rem minmax(0,1fr);gap:1rem;padding-block:1.5rem;display:grid}.prog-rules p{max-width:62ch;margin-top:.4rem}.prog-roman{font-family:var(--display);color:var(--accent);font-size:1.7rem;line-height:1}.prog-split{grid-template-columns:minmax(0,1fr);align-items:start;gap:2rem;display:grid}@media (min-width:960px){.prog-split{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}}.prog-facts{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);align-content:start;padding:1.5rem;display:grid}.prog-facts-v{font-family:var(--display);margin-top:.25rem;font-size:1.5rem;font-weight:600}.prog-facts dl{margin-top:1rem;display:grid}.prog-facts dl div{border-top:1px solid var(--line);justify-content:space-between;gap:1rem;padding-block:.55rem;display:flex}.prog-facts dt{color:var(--muted)}.prog-facts dd{font-weight:600}.prog-link{min-height:36px;color:var(--accent);white-space:nowrap;align-items:center;gap:.3rem;font-weight:600;display:inline-flex}.prog-fig{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);min-width:0;margin:0;padding:1.25rem}.prog-fig figcaption{color:var(--muted);margin-bottom:1.25rem;font-size:.9rem}.prog-fig figcaption b{color:var(--ink);margin-right:.4rem}.prog-scroll{overflow-x:auto}.arch{min-width:46rem;display:grid}.arch-row{border-bottom:1px solid var(--line);grid-template-columns:15rem repeat(6,minmax(0,1fr));align-items:center;column-gap:.75rem;padding-block:.5rem;display:grid}.arch-stages{align-items:end}.arch-stage{color:var(--muted);font-size:.75rem;line-height:1.3}.arch-stage b{font-family:var(--mono);color:var(--accent);display:block}.arch-name{grid-area:1/1;grid-template-columns:2rem minmax(0,1fr);column-gap:.25rem;font-size:.85rem;display:grid}.arch-name b{font-family:var(--mono);color:var(--accent)}.arch-name em{color:var(--muted);grid-column:2;font-size:.75rem;font-style:normal}.arch-bar{background:var(--muted);opacity:.45;transform-origin:0;border-radius:3px;grid-row:1;height:12px}.arch-bar.is-core{background:var(--accent);opacity:1}.arch-bar.is-span{border:1.5px solid var(--ink);opacity:1;background:0 0}.prog-key{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.4rem .6rem;margin-top:1rem;font-size:.8rem;display:flex}.prog-key span{background:color-mix(in srgb, var(--muted) 45%, transparent);border-radius:2px;width:14px;height:10px;margin-left:.4rem}.prog-key span:first-child{margin-left:0}.prog-key .is-core,.prog-key .is-p{background:var(--accent)}.prog-key .is-f{background:var(--muted)}.prog-key .is-span{border:1.5px solid var(--ink);background:0 0}.bp{display:grid}.bp-row{border-bottom:1px solid var(--line);gap:.5rem 1rem;padding-block:.65rem;display:grid}@media (min-width:720px){.bp-row{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:center}}.bp-name{gap:.6rem;font-size:.88rem;display:flex}.bp-name b{font-family:var(--mono);color:var(--accent)}.bp-bars{gap:.3rem;display:grid}.bp-line{align-items:center;gap:.5rem;display:flex}.bp-bar{transform-origin:0;border-radius:2px;min-width:2px;height:9px}.bp-bar.is-f{background:var(--muted)}.bp-bar.is-p{background:var(--accent)}.bp-v{color:var(--muted);font-size:.78rem}.prog-note{color:var(--muted);max-width:70ch;margin-top:1rem;font-size:.88rem;line-height:1.6}.prog-steps{grid-template-columns:repeat(auto-fit,minmax(min(100%,14rem),1fr));gap:1rem;display:grid}.prog-steps li{border-top:2px solid var(--ink);background:var(--surface);align-content:start;gap:.4rem;padding:1.25rem;display:grid}.prog-steps h4{font-weight:700}.prog-table{border-collapse:collapse;width:100%;min-width:52rem;font-size:.88rem}.prog-table th{text-align:left;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--ink);padding:.6rem .75rem;font-size:.75rem}.prog-table td{border-bottom:1px solid var(--line);vertical-align:top;padding:.85rem .75rem}.prog-table td p{color:var(--muted);max-width:48ch;margin-top:.3rem;line-height:1.55}.prog-table .num{text-align:right}.prog-code{font-family:var(--mono);color:var(--accent);font-weight:600}.tiers{grid-template-columns:repeat(auto-fit,minmax(min(100%,15.5rem),1fr));gap:1rem;display:grid}.tier{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:.75rem;padding:1.5rem;display:flex}.tier.is-flagship{border:2px solid var(--accent)}.tier-tag{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);justify-content:space-between;align-items:center;font-size:.75rem;display:flex}.tier-tag span{background:var(--accent);color:var(--accent-ink);letter-spacing:.04em;border-radius:999px;padding:.15rem .55rem}.tier-t{border-block:1px solid var(--line);justify-content:space-between;gap:1rem;padding-block:.6rem;font-size:.88rem;font-weight:600;display:flex}.tier-facts{border-block:1px solid var(--line);grid-template-columns:repeat(3,auto);gap:.5rem 1rem;padding-block:.6rem;font-size:.85rem;display:grid}.tier-facts dt{color:var(--muted);font-size:.75rem}.tier-facts dd{font-weight:600}.tier-list{gap:.5rem;font-size:.92rem;line-height:1.5;display:grid}.tier-list li{padding-left:1.2rem;position:relative}.tier-list li:before{content:"";border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);width:.55rem;height:.3rem;position:absolute;top:.45em;left:0;transform:rotate(-45deg)}.tier-price{margin-top:auto;font-weight:700}.exams{grid-template-columns:repeat(auto-fit,minmax(min(100%,22rem),1fr));gap:1rem;display:grid}.exam-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);align-content:start;gap:.6rem;padding:1.5rem;display:grid}.exam-spec{margin-top:.5rem;display:grid}.exam-spec div{border-top:1px solid var(--line);grid-template-columns:7.5rem minmax(0,1fr);gap:1rem;padding-block:.65rem;font-size:.92rem;line-height:1.5;display:grid}.exam-spec dt{color:var(--muted)}.prog-callout{border-left:3px solid var(--accent);background:var(--accent-soft);margin-top:1.5rem;padding:1rem 1.25rem;line-height:1.6}.prog-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);gap:1rem;padding:1.5rem;display:grid}.prog-prose{gap:2rem;max-width:46rem;display:grid}.prog-prose p,.prog-prose li{margin-top:.6rem;line-height:1.7}.prog-prose ul{padding-left:1.25rem;list-style:outside}
