/* Landing-only composition: Explore-first, monochrome, motion-led. */
:root{--landing-grid:rgba(17,17,17,.075);--landing-glow:rgba(17,17,17,.055);--landing-node:#111;--landing-node-ink:#fff}
:root[data-theme="dark"]{--landing-grid:rgba(255,255,255,.075);--landing-glow:rgba(255,255,255,.07);--landing-node:#f5f5f2;--landing-node-ink:#111}
body.landing-page{font-family:'Geist',Inter,system-ui,sans-serif;background:var(--bg)}
body.landing-page:before{content:'';position:fixed;inset:0;pointer-events:none;z-index:-1;background:radial-gradient(600px circle at var(--spot-x,50%) var(--spot-y,16%),var(--landing-glow),transparent 68%)}
.landing-page .topbar{animation:bar-in .55s cubic-bezier(.2,.8,.2,1) both}.landing-page .brand{font-family:'Geist',Inter,sans-serif}.landing-page .brand b{font-family:'Geist Mono','IBM Plex Mono',monospace}
.landing-wrap{max-width:1240px;margin:auto;padding:calc(var(--top) + 42px) 30px 110px}
.landing-page .landing-wrap,.landing-page .hero-stage,.landing-page .hero-copy,.landing-page .curriculum-section{min-width:0}
.hero-stage{position:relative;min-height:590px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);align-items:center;gap:54px;isolation:isolate}
.hero-stage:before{content:'';position:absolute;inset:0 -80px;background-image:linear-gradient(var(--landing-grid) 1px,transparent 1px),linear-gradient(90deg,var(--landing-grid) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,black 10%,transparent 92%);opacity:.65;z-index:-2;animation:grid-drift 18s linear infinite}
.hero-copy{padding:55px 0;position:relative;z-index:3}.hero-kicker{display:inline-flex;align-items:center;gap:9px;font:600 11px 'Geist Mono','IBM Plex Mono',monospace;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);animation:rise .6s .06s both}.live-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px color-mix(in srgb,var(--accent) 11%,transparent);animation:breathe 2s ease-in-out infinite}
.hero-stage h1{font-family:'Geist',Inter,sans-serif;font-size:clamp(54px,6.5vw,92px);font-weight:600;line-height:.94;letter-spacing:-.072em;max-width:720px;margin:24px 0 25px;text-wrap:balance;animation:rise .7s .12s both}.hero-stage h1 span{display:block;color:var(--muted)}
.hero-lede{max-width:650px;font-size:19px;line-height:1.65;color:var(--muted);margin:0;animation:rise .7s .19s both}.hero-actions{display:flex;gap:10px;align-items:center;margin-top:32px;animation:rise .7s .26s both}.hero-cta{display:inline-flex;align-items:center;gap:10px;text-decoration:none;border-radius:8px;height:46px;padding:0 18px;background:var(--accent);color:var(--accent-ink);font-weight:650;font-size:14px;transition:transform .2s,box-shadow .2s}.hero-cta:hover{transform:translateY(-2px);box-shadow:0 8px 25px color-mix(in srgb,var(--ink) 18%,transparent)}.hero-cta.secondary{background:var(--paper);color:var(--ink);box-shadow:0 0 0 1px var(--line)}.hero-cta .arrow{display:inline-block;transition:transform .2s}.hero-cta:hover .arrow{transform:translateX(3px)}
.hero-metrics{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:0;margin-top:46px;animation:rise .7s .33s both}.hero-metric{padding:0 25px;border-left:1px solid var(--line)}.hero-metric:first-child{padding-left:0;border-left:0}.hero-metric b{display:block;font:600 27px/1 'Geist Mono','IBM Plex Mono',monospace;letter-spacing:-.06em}.hero-metric span{display:block;margin-top:7px;color:var(--muted);font:500 10px 'Geist Mono','IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.07em}
.topology-wrap{position:relative;height:480px;animation:topology-in .9s .18s cubic-bezier(.2,.8,.2,1) both}.topology-shell{position:absolute;inset:10px 0;background:color-mix(in srgb,var(--paper) 80%,transparent);box-shadow:0 0 0 1px var(--line),0 25px 70px rgba(0,0,0,.08);border-radius:16px;overflow:hidden}.topology-shell:before{content:'';position:absolute;inset:0;background:linear-gradient(var(--landing-grid) 1px,transparent 1px),linear-gradient(90deg,var(--landing-grid) 1px,transparent 1px);background-size:32px 32px;opacity:.75}.topology-shell canvas{position:absolute;inset:0;width:100%;height:100%}.topology-label{position:absolute;top:27px;left:27px;z-index:2;font:600 10px 'Geist Mono','IBM Plex Mono',monospace;letter-spacing:.08em;color:var(--muted)}.topology-status{position:absolute;right:25px;bottom:24px;z-index:2;display:flex;align-items:center;gap:8px;font:500 10px 'Geist Mono','IBM Plex Mono',monospace;color:var(--muted)}.topology-status i{width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.12)}
.signal-strip{display:flex;align-items:center;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);overflow:hidden}.signal-label{flex:none;font:600 9px 'Geist Mono','IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.signal-track{display:flex;gap:9px;animation:ticker 28s linear infinite;width:max-content}.signal-pill{flex:none;padding:6px 10px;border-radius:999px;background:var(--paper);box-shadow:0 0 0 1px var(--line);font:500 10px 'Geist Mono','IBM Plex Mono',monospace;color:var(--muted)}
.path-section{padding:74px 0 38px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}.section-heading .eyebrow{display:block;margin-bottom:10px}.section-heading h2{font-size:clamp(32px,4vw,52px);line-height:1;letter-spacing:-.055em;margin:0;font-weight:600}.section-heading p{max-width:470px;color:var(--muted);font-size:14px;margin:0}
.learning-path{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:13px;overflow:hidden;background:var(--paper)}.path-step{position:relative;text-decoration:none;padding:23px;min-height:190px;border-right:1px solid var(--line);overflow:hidden;transition:background .2s,color .2s}.path-step:last-child{border-right:0}.path-step:hover{background:var(--ink);color:var(--bg)}.path-step .step-no{font:600 10px 'Geist Mono','IBM Plex Mono',monospace;color:var(--muted)}.path-step h3{font-size:19px;letter-spacing:-.03em;margin:42px 0 7px}.path-step p{font-size:12px;color:var(--muted);margin:0}.path-step:hover p,.path-step:hover .step-no{color:color-mix(in srgb,var(--bg) 65%,transparent)}.path-line{position:absolute;top:23px;right:22px;width:55px;height:20px}.path-line:before,.path-line:after{content:'';position:absolute}.path-line:before{left:0;right:0;top:10px;height:1px;background:var(--line)}.path-line:after{right:0;top:6px;width:8px;height:8px;border-top:1px solid var(--muted);border-right:1px solid var(--muted);transform:rotate(45deg)}
.curriculum-section{padding:66px 0}.curriculum-tools{position:sticky;top:var(--top);z-index:20;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(14px);margin:0 -14px 30px;padding:14px;border-bottom:1px solid var(--line)}.tool-row{display:flex;gap:11px;align-items:center}.search-shell{position:relative;flex:1}.search-shell:before{content:'⌕';position:absolute;left:15px;top:50%;transform:translateY(-53%);font-size:22px;color:var(--muted)}.search{width:100%;max-width:none;height:48px;padding:0 42px;background:var(--paper);border:0;box-shadow:0 0 0 1px var(--line);transition:box-shadow .2s}.search:focus{outline:0;box-shadow:0 0 0 2px var(--ink)}.visible-count{white-space:nowrap;font:600 10px 'Geist Mono','IBM Plex Mono',monospace;color:var(--muted)}
.category-rail{display:flex;gap:7px;margin-top:11px;overflow:auto;padding:1px 1px 5px;scrollbar-width:none}.category-rail::-webkit-scrollbar{display:none}.filter-chip{flex:none;border:0;background:var(--paper);color:var(--muted);box-shadow:0 0 0 1px var(--line);border-radius:999px;padding:8px 12px;font:550 11px 'Geist',Inter,sans-serif;cursor:pointer;transition:background .18s,color .18s,transform .18s}.filter-chip:hover{transform:translateY(-1px);color:var(--ink)}.filter-chip.active{background:var(--ink);color:var(--bg);box-shadow:none}
.catalog{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.design-card{position:relative;min-height:255px;padding:20px 20px 17px;border:0;box-shadow:0 0 0 1px var(--line),0 2px 2px rgba(0,0,0,.025);overflow:hidden;opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1),box-shadow .2s}.design-card.revealed{opacity:1;transform:translateY(0)}.design-card:hover{transform:translateY(-5px);box-shadow:0 0 0 1px var(--ink),0 18px 45px rgba(0,0,0,.08)}.card-top{display:flex;justify-content:space-between;align-items:center}.card-arrow{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--soft);transition:transform .25s,background .25s,color .25s}.design-card:hover .card-arrow{transform:rotate(-35deg);background:var(--ink);color:var(--bg)}.card-graph{height:65px;margin:18px 0 8px;position:relative}.card-graph i{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--muted);opacity:.65}.card-graph i:nth-child(1){left:4%;top:34%}.card-graph i:nth-child(2){left:32%;top:10%}.card-graph i:nth-child(3){left:58%;top:50%}.card-graph i:nth-child(4){right:5%;top:20%}.card-graph:before,.card-graph:after{content:'';position:absolute;height:1px;background:var(--line);transform-origin:left}.card-graph:before{left:6%;top:36%;width:55%;transform:rotate(-9deg)}.card-graph:after{left:34%;top:18%;width:62%;transform:rotate(8deg)}.design-card h2{font-size:21px;margin:14px 0 8px}.card-meta{display:flex;justify-content:space-between;align-items:end;gap:10px;margin-top:18px}.design-card .category{margin:0}.card-depth{font:500 9px 'Geist Mono','IBM Plex Mono',monospace;color:var(--muted)}
.empty{border-radius:12px;background:var(--paper)}
.landing-footer{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-top:65px;padding-top:25px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}@keyframes topology-in{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}@keyframes bar-in{from{transform:translateY(-100%)}to{transform:none}}@keyframes breathe{0%,100%{transform:scale(.85);opacity:.7}50%{transform:scale(1.15);opacity:1}}@keyframes grid-drift{to{background-position:48px 48px}}@keyframes ticker{to{transform:translateX(-50%)}}
@media(max-width:1000px){.hero-stage{grid-template-columns:1fr;min-height:auto;padding-bottom:60px}.hero-copy{padding-bottom:0}.topology-wrap{height:390px}.learning-path{grid-template-columns:1fr 1fr}.path-step:nth-child(2){border-right:0}.path-step:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:820px){.landing-page .topbar{padding:0 12px;gap:8px}.landing-page .brand{min-width:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}.landing-page .brand b{flex:none}.landing-page .crumb{display:none}.landing-page .theme-toggle{display:block;flex:none;width:42px;padding:0;font-size:0}.landing-page .theme-toggle:after{content:'';display:inline-block;width:14px;height:14px;border:1px solid currentColor;border-radius:50%;background:linear-gradient(90deg,currentColor 50%,transparent 50%)}.landing-wrap{width:100%;max-width:100%;padding:calc(var(--top) + 28px) 20px 80px;overflow:hidden}.hero-stage h1{font-size:clamp(46px,14.2vw,64px);letter-spacing:-.065em}.hero-stage{width:100%;gap:15px}.hero-copy{width:100%;padding-top:35px}.hero-kicker{font-size:9px;white-space:normal}.hero-lede{max-width:100%;font-size:16px;overflow-wrap:anywhere}.topology-wrap{width:100%;height:330px}.hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));width:100%}.hero-metric{min-width:0;padding:0 9px}.hero-metric b{font-size:20px}.hero-metric span{white-space:normal}.section-heading{display:block}.section-heading p{margin-top:16px}.catalog{grid-template-columns:1fr}.design-card{min-height:230px}.curriculum-tools{top:var(--top);margin-inline:-20px;padding-inline:20px}.landing-footer{display:block}.landing-footer p:last-child{margin-top:12px}}
@media(max-width:520px){.topology-wrap{height:285px}.hero-actions{width:100%;align-items:stretch;flex-direction:column}.hero-cta{width:100%;max-width:100%;justify-content:center}.learning-path{grid-template-columns:1fr}.path-step{border-right:0;border-bottom:1px solid var(--line)}.path-step:last-child{border-bottom:0}.hero-metrics{gap:0}.hero-metric span{font-size:7.5px;line-height:1.3}.tool-row{align-items:stretch;flex-direction:column}.visible-count{padding-left:2px}}
@media(prefers-reduced-motion:reduce){.landing-page *{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}.design-card{opacity:1;transform:none}.signal-track{animation:none}.hero-cta,.filter-chip,.design-card,.card-arrow{transition:none!important}}