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255);--ink-faint: oklch(63% .012 255);--border: oklch(32% .012 255);--border-strong: oklch(42% .014 255);--accent: oklch(75% .12 244);--accent-ink: oklch(14% .01 255);--focus-ring: oklch(78% .13 244);--scrim: oklch(8% .01 255 / 60%);--hard-edge: oklch(72% .15 25);--soft-edge: oklch(72% .015 255)}}:root{--subj-science: 148;--subj-mathematics: 244;--subj-english: 300;--subj-history: 55;--subj-psd: 8;--subj-lifeskills: 190;--subj-computing: 274;--subj-l2l: 100}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:var(--text-body);line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;line-height:1.2;margin:0}p{margin:0}button,input{font-family:inherit;color:inherit}a{color:inherit}::selection{background:color-mix(in oklch,var(--accent) 30%,transparent)}:focus-visible{outline:2.5px solid 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var(--ease-out-quart)}.skip-link:focus-visible{transform:translateY(0);outline-offset:3px}#app{min-height:100dvh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:var(--z-sticky);display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-lg);background:color-mix(in oklch,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.brand{display:flex;flex-direction:column;gap:.1rem;min-width:0}.brand-title{font-size:var(--text-subhead);letter-spacing:-.01em;white-space:nowrap}.brand-meta{font-size:var(--text-caption);color:var(--ink-faint);white-space:nowrap}.search-wrap{position:relative;flex:1;max-width:34rem}.search-input{width:100%;padding:var(--space-2xs) var(--space-sm) var(--space-2xs) var(--space-lg);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);font-size:var(--text-body);transition:border-color var(--duration-fast) var(--ease-out-quart),box-shadow var(--duration-fast) var(--ease-out-quart)}.search-input:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklch,var(--accent) 20%,transparent)}.search-icon{position:absolute;left:var(--space-2xs);top:50%;transform:translateY(-50%);color:var(--ink-faint);pointer-events:none}.topbar-actions{display:flex;align-items:center;gap:var(--space-2xs)}.icon-button{position:relative;display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);cursor:pointer;transition:border-color var(--duration-fast) var(--ease-out-quart),background var(--duration-fast) var(--ease-out-quart)}.icon-button:hover{border-color:var(--border-strong);background:var(--surface-raised)}.filter-toggle{display:none}.layout{flex:1;display:grid;grid-template-columns:17rem minmax(0,1fr);min-height:0}.rail{border-right:1px solid var(--border);padding:var(--space-md) var(--space-md) var(--space-xl);overflow-y:auto;position:sticky;top:3.75rem;height:calc(100dvh - 3.75rem);display:flex;flex-direction:column;gap:var(--space-lg)}.rail-section{display:flex;flex-direction:column;gap:var(--space-xs)}.rail-heading{font-size:var(--text-caption);font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}.rail-heading{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-2xs)}.rail-heading-count{font-size:var(--text-caption);font-weight:500;letter-spacing:0;text-transform:none;color:var(--ink-faint);font-variant-numeric:tabular-nums}.subject-list{display:flex;flex-direction:column;gap:1px}.subject-row{position:relative;display:flex;align-items:stretch;border-radius:var(--radius-sm)}.subject-toggle{flex:1;min-width:0;display:flex;align-items:center;gap:var(--space-2xs);padding:.3rem 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.subject-check{background:oklch(58% .13 var(--hue, 244));border-color:oklch(58% .13 var(--hue, 244));color:var(--accent-ink)}.subject-toggle[aria-pressed=true] .subject-check svg{transform:scale(1);opacity:1}.subject-toggle:active .subject-check{transform:scale(.9)}.subject-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.subject-toggle[aria-pressed=true]{color:var(--ink);font-weight:600}.subject-toggle[aria-pressed=false] .subject-dot{opacity:.4}.subject-only{position:absolute;right:var(--space-3xs);top:50%;transform:translateY(-50%) translate(2px);border:1px solid var(--border);background:var(--surface-raised);border-radius:999px;padding:1px 8px;font-size:var(--text-caption);font-weight:600;letter-spacing:.02em;color:var(--ink-muted);cursor:pointer;opacity:0;pointer-events:none;transition:opacity var(--duration-fast) var(--ease-out-quart),transform var(--duration-fast) var(--ease-out-quart),color var(--duration-fast) var(--ease-out-quart),border-color var(--duration-fast) var(--ease-out-quart)}.subject-row:hover .subject-only,.subject-row:focus-within .subject-only{opacity:1;pointer-events:auto;transform:translateY(-50%) translate(0)}.subject-only:hover{color:var(--accent);border-color:var(--accent)}.subject-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;background:oklch(60% .13 var(--hue));transition:opacity var(--duration-fast) var(--ease-out-quart)}:root[data-theme=dark] .subject-dot{background:oklch(74% .14 var(--hue))}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .subject-dot{background:oklch(74% .14 var(--hue))}}.subject-count{margin-left:auto;font-size:var(--text-caption);color:var(--ink-faint);font-variant-numeric:tabular-nums}.subject-toggle[aria-pressed=false] .subject-count{opacity:.55}.subject-row:hover .subject-count,.subject-row:focus-within .subject-count{opacity:0}.rail-link-button{align-self:flex-start;border:none;background:none;padding:0;font-size:var(--text-caption);color:var(--accent);cursor:pointer;text-decoration:underline;text-underline-offset:2px}.age-range-values{display:flex;justify-content:space-between;font-size:var(--text-secondary);font-variant-numeric:tabular-nums;color:var(--ink);margin-bottom:var(--space-3xs)}.age-slider{position:relative;height:2rem}.age-slider-track{position:absolute;top:50%;left:0;right:0;height:3px;background:var(--border);border-radius:2px;transform:translateY(-50%)}.age-slider-fill{position:absolute;top:50%;height:3px;background:var(--accent);border-radius:2px;transform:translateY(-50%)}.age-slider input[type=range]{position:absolute;top:0;left:0;width:100%;height:2rem;margin:0;background:transparent;appearance:none;pointer-events:none}.age-slider input[type=range]::-webkit-slider-runnable-track{background:transparent;height:2rem}.age-slider input[type=range]::-webkit-slider-thumb{appearance:none;pointer-events:auto;width:16px;height:16px;margin-top:8px;border-radius:50%;background:var(--surface-raised);border:2px solid var(--accent);cursor:grab;box-shadow:0 1px 2px #00000026}.age-slider input[type=range]::-moz-range-thumb{pointer-events:auto;width:14px;height:14px;border-radius:50%;background:var(--surface-raised);border:2px solid var(--accent);cursor:grab;box-shadow:0 1px 2px #00000026}.age-slider input[type=range]::-moz-range-track{background:transparent}.type-list{display:flex;flex-wrap:wrap;gap:var(--space-3xs)}.chip-toggle{border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:3px var(--space-xs);font-size:var(--text-caption);color:var(--ink-muted);cursor:pointer;transition:all var(--duration-fast) var(--ease-out-quart)}.chip-toggle[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:color-mix(in oklch,var(--accent) 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h2{font-size:var(--text-subhead);color:var(--ink)}.text-button{border:none;background:none;padding:0;color:var(--accent);cursor:pointer;font-size:var(--text-secondary);text-decoration:underline;text-underline-offset:2px}.scrim{position:fixed;inset:0;background:var(--scrim);z-index:var(--z-scrim);opacity:0;pointer-events:none;transition:opacity var(--duration-base) var(--ease-out-quart)}.scrim.is-open{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:0;bottom:0;width:min(30rem,100vw);background:var(--surface);border-left:1px solid var(--border);z-index:var(--z-drawer);display:flex;flex-direction:column;transform:translate(100%);transition:transform var(--duration-slow) var(--ease-out-quart);box-shadow:-12px 0 32px #00000014}.drawer.is-open{transform:translate(0)}.drawer-header{display:flex;align-items:flex-start;gap:var(--space-sm);padding:var(--space-md) var(--space-md) var(--space-sm);border-bottom:1px solid var(--border)}.drawer-header-main{min-width:0;display:flex;flex-direction:column;gap:var(--space-3xs)}.drawer-eyebrow{display:flex;align-items:center;gap:var(--space-3xs);font-size:var(--text-caption);color:var(--ink-muted)}.drawer-title{font-size:var(--text-heading);letter-spacing:-.01em}.drawer-body{flex:1;overflow-y:auto;padding:var(--space-md);display:flex;flex-direction:column;gap:var(--space-lg)}@keyframes drawer-section-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.drawer.is-open .drawer-body>div{animation:drawer-section-in .38s var(--ease-out-quart) both}.drawer.is-open .drawer-body>div:nth-child(1){animation-delay:40ms}.drawer.is-open .drawer-body>div:nth-child(2){animation-delay:90ms}.drawer.is-open .drawer-body>div:nth-child(3){animation-delay:.14s}.drawer.is-open .drawer-body>div:nth-child(4){animation-delay:.19s}.drawer.is-open .drawer-body>div:nth-child(5){animation-delay:.24s}.drawer.is-open .drawer-body>div:nth-child(n+6){animation-delay:.29s}.drawer-section-heading{font-size:var(--text-caption);font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);margin-bottom:var(--space-2xs)}.drawer-description{font-size:var(--text-subhead);font-family:var(--font-display);line-height:1.45;color:var(--ink)}.evidence-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--space-2xs)}.evidence-list li{display:flex;gap:var(--space-2xs);font-size:var(--text-secondary);line-height:1.5}.evidence-list li:before{content:"";flex-shrink:0;width:6px;height:6px;margin-top:.5em;border-radius:50%;border:1.5px solid var(--border-strong)}.assessment-prompt{font-size:var(--text-secondary);font-style:italic;color:var(--ink-muted);padding:var(--space-xs) var(--space-sm);border-left:2px solid var(--border-strong);line-height:1.55}.edge-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--space-2xs)}.edge-item{display:flex;flex-direction:column;gap:2px;padding:var(--space-2xs) var(--space-2xs);border-radius:var(--radius-sm)}.edge-item-link{display:flex;align-items:center;gap:var(--space-2xs);border:none;background:none;padding:0;cursor:pointer;text-align:left;font-size:var(--text-secondary);color:var(--ink);font-weight:600}.edge-item-link:hover{text-decoration:underline}.edge-strength{font-size:.6rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;padding:1px 5px;border-radius:999px;flex-shrink:0}.edge-strength.hard{color:var(--hard-edge);border:1px solid color-mix(in oklch,var(--hard-edge) 45%,transparent)}.edge-strength.soft{color:var(--soft-edge);border:1px solid color-mix(in oklch,var(--soft-edge) 45%,transparent)}.edge-reason{font-size:var(--text-caption);color:var(--ink-faint);padding-left:1.35rem}.prereq-graph{position:relative;margin-top:var(--space-2xs);padding:var(--space-sm) 0;border:1px solid var(--border);border-radius:var(--radius-md);background:color-mix(in oklch,var(--surface-raised) 55%,transparent);overflow:hidden}.prereq-graph:before{content:"";position:absolute;inset:0;background-image:radial-gradient(color-mix(in oklch,var(--border) 65%,transparent) 1px,transparent 1px);background-size:15px 15px;opacity:.6;pointer-events:none}.pg-links{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}.pg-link{fill:none;stroke:var(--border-strong);stroke-width:1.5}.pg-link--soft{stroke-dasharray:3 4;opacity:.85}.pg-grid{position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--space-xs);padding:0 var(--space-2xs)}.pg-col{display:flex;flex-direction:column;gap:var(--space-2xs);min-width:0}.pg-col--prereq{align-items:flex-start}.pg-col--unlock{align-items:flex-end}.pg-col--center{align-items:center}.pg-node{position:relative;z-index:1;display:inline-flex;align-items:center;gap:var(--space-3xs);max-width:100%;padding:.28rem .5rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);cursor:pointer;font-size:var(--text-caption);color:var(--ink);text-align:left;transition:border-color var(--duration-fast) var(--ease-out-quart),background var(--duration-fast) var(--ease-out-quart),transform var(--duration-fast) var(--ease-out-quart),box-shadow var(--duration-fast) var(--ease-out-quart)}button.pg-node:hover{border-color:oklch(62% .12 var(--hue, 244));box-shadow:0 0 0 3px color-mix(in oklch,oklch(62% .12 var(--hue, 244)) 16%,transparent);transform:translateY(-1px)}.pg-node-dot{flex-shrink:0;width:7px;height:7px;border-radius:50%;background:oklch(60% .13 var(--hue, 244))}:root[data-theme=dark] .pg-node-dot{background:oklch(74% .14 var(--hue, 244))}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .pg-node-dot{background:oklch(74% .14 var(--hue, 244))}}.pg-node-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pg-node--center{cursor:default;padding:.4rem .7rem;border-color:oklch(62% .12 var(--hue, 244));background:color-mix(in oklch,oklch(62% .12 var(--hue, 244)) 12%,var(--surface));font-weight:600;font-size:var(--text-secondary);box-shadow:0 1px 6px color-mix(in oklch,oklch(62% .12 var(--hue, 244)) 22%,transparent)}.pg-node--center .pg-node-dot{width:8px;height:8px}.pg-node--more{cursor:default;border-style:dashed;background:transparent;color:var(--ink-faint)}.pg-node--prereq[data-strength=hard],.pg-node--unlock[data-strength=hard]{border-color:var(--border-strong)}.pg-origin{font-size:var(--text-caption);color:var(--ink-faint);font-style:italic;padding:.28rem .5rem;border:1px dashed var(--border);border-radius:var(--radius-sm)}.standards-list{display:flex;flex-wrap:wrap;gap:var(--space-2xs)}.standard-chip{border:1px solid var(--border);border-radius:var(--radius-sm);padding:var(--space-3xs) var(--space-2xs);font-size:var(--text-caption);color:var(--ink-muted);cursor:default;position:relative}.standard-chip[data-loading=true]{color:var(--ink-faint)}.standard-chip .standard-title{display:block;color:var(--ink);font-weight:600}.drawer-empty{font-size:var(--text-secondary);color:var(--ink-faint)}.drawer-close{flex-shrink:0}.hero{position:relative;height:clamp(320px,52vh,560px);overflow:hidden;background:#070b12;border-bottom:1px solid var(--border)}.hero.is-expanded{position:fixed;inset:3.6rem 0 0;height:auto;z-index:6;border-bottom:none}.hero.is-expanded~.layout,.hero.is-expanded~.site-footer{display:none}html.hero-locked{overflow:hidden}.constellation-canvas{position:absolute;inset:0;opacity:0;transition:opacity .5s var(--ease-out-quart)}.hero.is-ready .constellation-canvas{opacity:1}.constellation-canvas canvas{display:block}.hero:after{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;background:radial-gradient(125% 95% at 50% 28%,transparent 52%,oklch(3% .01 255 / 60%) 100%)}.constellation-overlay{position:absolute;inset:0;pointer-events:none;color:#dadee5;z-index:1}.constellation-overlay button{pointer-events:auto}.hero-copy{position:absolute;left:var(--space-lg);bottom:var(--space-lg);max-width:27rem;display:flex;flex-direction:column;gap:var(--space-xs)}.hero-tag{font-family:var(--font-display);font-size:var(--text-subhead);line-height:1.3;color:#edf2f9;text-shadow:0 1px 12px oklch(0% 0 0 / 75%);text-wrap:balance}.hero-brand{display:flex;align-items:center;gap:var(--space-2xs);font-size:var(--text-secondary);color:#bcc5d1;text-shadow:0 1px 6px oklch(0% 0 0 / 75%)}.hero-brand-text strong{color:#eaeff5;font-weight:700;letter-spacing:.01em}.brand-wolf{width:36px;height:36px;object-fit:contain;mix-blend-mode:screen;filter:drop-shadow(0 2px 6px oklch(0% 0 0 / 60%))}.brand-wolf[hidden]{display:none}.hero-expand{position:absolute;top:var(--space-sm);right:var(--space-sm);background:#0a0e12b3;border-color:#ffffff24;color:#e0e5eb;backdrop-filter:blur(6px)}.hero-expand:hover{background:#1c2024d1;border-color:#ffffff3d}.constellation-hint{position:absolute;left:var(--space-lg);bottom:var(--space-lg);max-width:24rem;display:none;flex-direction:column;gap:2px;font-size:var(--text-caption);color:#9ca5b1;text-shadow:0 1px 3px oklch(0% 0 0 / 60%)}.constellation-hint strong{font-size:var(--text-secondary);color:#e7ecf2;font-weight:600;font-variant-numeric:tabular-nums}.constellation-legend{position:absolute;right:var(--space-md);top:3.5rem;display:none;flex-direction:column;gap:5px;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-md);background:#07090d9e;backdrop-filter:blur(8px);border:1px solid oklch(100% 0 0 / 8%)}.hero.is-expanded .hero-copy{display:none}.hero.is-expanded .constellation-hint,.hero.is-expanded .constellation-legend{display:flex}.cl-item{display:flex;align-items:center;gap:var(--space-2xs);font-size:var(--text-caption);color:#cdd1d8;white-space:nowrap}.cl-swatch{width:9px;height:9px;border-radius:50%;flex-shrink:0}.constellation-status{position:absolute;inset:0;z-index:1;display:none;align-items:center;justify-content:center;font-size:var(--text-secondary);color:#afb8c4;letter-spacing:.01em}.hero.is-loading .constellation-status,.hero.is-error .constellation-status{display:flex}.hero.is-error .constellation-status{cursor:pointer;pointer-events:auto}.footer-logo-chip[hidden]{display:none}.site-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border);color:var(--ink-muted);font-size:var(--text-secondary)}.footer-brand{display:flex;align-items:center;gap:var(--space-2xs)}.footer-brand strong{color:var(--ink);font-weight:700}.footer-logo-chip{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:#0a0e16;border:1px solid var(--border);overflow:hidden}.footer-wolf{width:24px;height:24px;object-fit:contain}.footer-wolf[hidden]{display:none}.footer-meta{color:var(--ink-faint)}.pg3-label{display:flex;flex-direction:column;gap:1px;padding:5px 9px;border-radius:var(--radius-sm);background:#0a0e12eb;border:1px solid oklch(100% 0 0 / 12%);color:#eaeff5;font-family:var(--font-body);font-size:.8rem;font-weight:600}.pg3-label span{font-weight:400;font-size:var(--text-caption);color:#969fab}@media(max-width:860px){.topbar{padding:var(--space-2xs) var(--space-sm);gap:var(--space-2xs)}.brand-meta{display:none}.filter-toggle{display:inline-flex}.layout{grid-template-columns:1fr}.rail{position:fixed;top:0;left:0;bottom:0;height:100dvh;width:min(20rem,85vw);z-index:var(--z-drawer);background:var(--surface);transform:translate(-100%);transition:transform var(--duration-base) var(--ease-out-quart);box-shadow:12px 0 32px #00000014}.rail.is-open{transform:translate(0)}.subject-only{position:static;opacity:1;pointer-events:auto;transform:none;align-self:center;margin-left:var(--space-2xs);flex-shrink:0}.content{padding:var(--space-sm) var(--space-sm) var(--space-2xl)}.topic-row-domain{display:none}.drawer{width:100vw}.hero{height:clamp(260px,42vh,420px)}.hero.is-expanded{inset:3rem 0 0}.hero-copy{left:var(--space-sm);bottom:var(--space-sm);max-width:min(78vw,22rem)}.hero-tag{font-size:var(--text-body)}.constellation-legend{top:3rem;right:var(--space-2xs);padding:var(--space-2xs) var(--space-xs);gap:3px}.constellation-hint{left:var(--space-sm);bottom:var(--space-sm);max-width:62vw}.site-footer{padding:var(--space-md) var(--space-sm)}}@media(min-width:640px){.topic-row-domain{display:block}}