:root{--bg: #0f1419;--surface: #1a212b;--surface-2: #232c38;--text: #e6edf3;--muted: #a3b1c2;--frontier: #3b82f6;--frontier-strong: #2563eb;--gap: #f59e0b;--mastered: #22c55e;--border: #2d3744;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--frontier-strong);color:#fff;padding:.6rem 1rem;border-radius:0 0 8px}.skip-link:focus{left:0}main:focus{outline:none}:focus-visible{outline:2px solid var(--frontier);outline-offset:2px;border-radius:4px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}main{max-width:1040px;margin:0 auto;padding:2rem 1.25rem 4rem}header h1{margin:0;font-size:2rem;letter-spacing:-.02em}.tagline{color:var(--muted);margin:.25rem 0 1.5rem}.status-banner{background:#3a1d1d;border:1px solid #5c2b2b;color:#f3b5b5;padding:.75rem 1rem;border-radius:8px}.legend{display:flex;align-items:center;gap:.5rem;margin-bottom:1.25rem;flex-wrap:wrap}.threshold{margin-left:auto;color:var(--muted);font-size:.85rem}.chip{font-size:.72rem;font-weight:600;padding:.18rem .55rem;border-radius:999px;text-transform:uppercase;letter-spacing:.03em}.chip.frontier{background:#3b82f62e;color:var(--frontier)}.chip.gap{background:#f59e0b2e;color:var(--gap)}.chip.mastered{background:#22c55e2e;color:var(--mastered)}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.card{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--border);border-radius:10px;padding:1rem}.card.frontier{border-left-color:var(--frontier)}.card.gap{border-left-color:var(--gap)}.card.mastered{border-left-color:var(--mastered)}.card-head{display:flex;justify-content:space-between;align-items:center;gap:.5rem}.code{font-size:.72rem;color:var(--muted)}.card h3{margin:.6rem 0 .2rem;font-size:1.05rem}.grade{margin:0;color:var(--muted);font-size:.8rem}.blurb{color:var(--muted);font-size:.85rem;min-height:2.4em}.slider{display:flex;flex-direction:column;gap:.35rem;font-size:.8rem;color:var(--muted)}.slider input{width:100%;accent-color:var(--frontier)}.summary{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border);color:var(--muted)}.summary strong{color:var(--text)}.muted{color:var(--muted)}.tabs{border-bottom:1px solid var(--border);margin:1rem 0 1.5rem}.tablist{display:flex;gap:.25rem;flex-wrap:wrap}.tab{background:none;border:none;color:var(--muted);padding:.6rem 1rem;font-size:.95rem;cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-bottom-color:var(--frontier)}.tab:hover{color:var(--text)}button.primary{background:var(--frontier-strong);color:#fff;border:none;padding:.6rem 1.2rem;border-radius:8px;font-size:.95rem;cursor:pointer;margin-top:.5rem}button.primary:disabled{opacity:.5;cursor:not-allowed}.qnum{color:var(--muted);font-size:.75rem;margin:0;text-transform:uppercase}.choices{display:flex;flex-direction:column;gap:.5rem;margin-top:.75rem}.choice{display:flex;align-items:center;gap:.6rem;padding:.55rem .8rem;border:1px solid var(--border);border-radius:8px;cursor:pointer}.choice.selected{border-color:var(--frontier);background:#3b82f61a}.path{list-style:none;padding:0;display:flex;flex-direction:column;gap:1rem}.content-list{margin:.75rem 0 0;padding-left:1rem}.content-list li{display:flex;gap:.6rem;align-items:baseline}.content-list a{color:var(--frontier)}.content-type{font-size:.7rem;color:var(--muted);text-transform:uppercase}.profile{display:flex;flex-direction:column;gap:1rem;max-width:480px}.profile-field{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;color:var(--muted)}.profile-field select,.profile-field input{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:.5rem;font-size:.95rem}.free-input{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:.6rem;font-size:.95rem;font-family:inherit;resize:vertical;margin:.5rem 0}.saved{color:var(--mastered);font-size:.9rem}.progress-summary{display:flex;align-items:center;gap:1.5rem;margin:1rem 0 1.5rem}.ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;flex-shrink:0}.ring span{width:70px;height:70px;border-radius:50%;background:var(--bg);display:grid;place-items:center;font-weight:700;font-size:1.1rem}.progress-stats p{margin:.25rem 0}.trail-title{margin-bottom:.5rem}.trail{display:flex;align-items:center;flex-wrap:wrap;gap:.25rem}.trail-node{width:64px;height:64px;border-radius:12px;border:2px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.15rem;font-size:.75rem}.trail-node.mastered{border-color:var(--mastered);background:#22c55e26}.trail-node.frontier{border-color:var(--frontier);background:#3b82f626}.trail-node.gap{border-color:var(--gap);background:#f59e0b1f}.trail-grade{color:var(--muted)}.trail-pct{font-weight:700}.trail-link{width:16px;height:2px;background:var(--border)}.chat{display:flex;flex-direction:column;gap:.75rem;min-height:120px;margin:1rem 0}.bubble{max-width:80%;padding:.6rem .9rem;border-radius:12px;border:1px solid var(--border)}.bubble.user{align-self:flex-end;background:#3b82f626;border-color:var(--frontier)}.bubble.assistant{align-self:flex-start;background:var(--surface)}.bubble-role{font-size:.7rem;text-transform:uppercase;color:var(--muted)}.bubble p{margin:.25rem 0 0;white-space:pre-wrap}.chat-input{display:flex;gap:.5rem;align-items:flex-end}.chat-input .free-input{flex:1;margin:0}.kpis{display:flex;flex-wrap:wrap;gap:.75rem;margin:1rem 0}.kpi{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:.8rem 1.1rem;display:flex;flex-direction:column;min-width:110px}.kpi strong{font-size:1.4rem}.kpi span{color:var(--muted);font-size:.8rem}.heatmap-wrap{overflow-x:auto;margin-top:1rem}.heatmap{border-collapse:collapse;font-size:.85rem}.heatmap caption{caption-side:top;text-align:left;color:var(--muted);font-size:.8rem;padding-bottom:.5rem}.heatmap th,.heatmap td{border:1px solid var(--border);padding:.5rem .7rem;text-align:center}.heatmap th{color:var(--muted);font-weight:600}.heatmap .learner-name{text-align:left;color:var(--text);font-weight:600}.heatmap .cell{color:#fff;font-variant-numeric:tabular-nums}.context-bar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:end;margin:.5rem 0 1rem;padding:.75rem;background:var(--surface);border:1px solid var(--border);border-radius:8px}.ctx-field{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--muted)}.ctx-field select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:.35rem .5rem;min-width:9rem}.data-table{width:100%;border-collapse:collapse;margin-top:.5rem;font-size:.92rem}.data-table th,.data-table td{border-bottom:1px solid var(--border);padding:.45rem .6rem;text-align:left}.data-table th{color:var(--muted);font-weight:600}.data-table td.mono,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em;color:var(--muted);word-break:break-all}@media(max-width:640px){.context-bar{flex-direction:column;align-items:stretch}.ctx-field select{width:100%}.data-table{font-size:.82rem}.tablist{overflow-x:auto}}.home{max-width:920px;margin:0 auto;padding:1.5rem 1.25rem 4rem}.home .hero{padding:2.5rem 0 1.5rem}.home .eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;font-weight:700;color:var(--frontier);margin:0 0 .5rem}.home .hero h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.15;margin:0 0 1rem;max-width:18ch}.home .hero-sub{font-size:1.1rem;color:var(--muted);max-width:60ch;margin:0 0 1.5rem}.home .hero-cta{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}.primary.big{font-size:1.05rem;padding:.7rem 1.4rem}.home section{margin-top:2.5rem}.home h2{font-size:1.5rem;margin:0 0 1.25rem}.home .steps{list-style:none;padding:0;margin:0;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.home .step{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.1rem}.home .step-num{display:inline-flex;width:1.9rem;height:1.9rem;align-items:center;justify-content:center;border-radius:50%;background:var(--frontier-strong);color:#fff;font-weight:700;margin-bottom:.5rem}.home .step h3{margin:0 0 .35rem}.home .step p{color:var(--muted);margin:0}.home .why-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.home .why-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.25rem}.home .why-card h3{margin:0 0 .5rem;font-size:1.1rem}.home .why-card p{color:var(--muted);margin:0}.home .closing{text-align:center;background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:2rem 1.25rem}.home .closing p{color:var(--muted);max-width:55ch;margin:0 auto 1.25rem}.linklike{background:none;border:none;color:var(--frontier);cursor:pointer;padding:0;font:inherit;text-decoration:underline}.landing{min-height:100vh;display:flex;flex-direction:column;background:radial-gradient(900px 480px at 50% -8%,rgba(59,130,246,.16),transparent 70%),radial-gradient(700px 400px at 88% 4%,rgba(34,197,94,.1),transparent 65%),var(--bg)}.site-nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem clamp(1rem,4vw,2.5rem);background:#0f1419b8;-webkit-backdrop-filter:saturate(140%) blur(10px);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border)}.brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--text)}.brand-mark{display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:9px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--frontier) 0%,var(--mastered) 120%);box-shadow:0 2px 10px #3b82f659}.brand-name{font-weight:700;letter-spacing:-.01em;font-size:1.05rem}.nav-cta{margin-top:0}.home .hero{padding:clamp(2.5rem,7vw,4.5rem) 0 1.5rem}.trust-strip{list-style:none;margin:2.25rem 0 0;padding:0;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.trust-strip li{display:flex;flex-direction:column;gap:.25rem;padding:1rem 1.1rem;background:var(--surface);border:1px solid var(--border);border-radius:12px}.trust-strip strong{font-size:1.05rem;letter-spacing:-.01em}.trust-strip span{color:var(--muted);font-size:.88rem;line-height:1.4}.home .why-card,.home .step,.trust-strip li{transition:transform .16s ease,border-color .16s ease}.home .why-card:hover,.home .step:hover{transform:translateY(-2px);border-color:var(--frontier)}.home .closing{background:radial-gradient(600px 300px at 50% 0%,rgba(59,130,246,.18),transparent 70%),var(--surface-2)}.site-footer{margin-top:auto;border-top:1px solid var(--border);padding:1.75rem clamp(1rem,4vw,2.5rem)}.footer-inner{max-width:920px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:.4rem 1rem}.footer-inner .brand-name{font-size:.98rem}.app-shell{max-width:1280px;margin:0 auto;padding:0 1.25rem 3rem}.app-topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 0;background:var(--bg);border-bottom:1px solid var(--border)}.brand-btn{background:none;border:none;padding:0;cursor:pointer}.nav-toggle{display:none;align-items:center;background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:8px;font-size:1.1rem;line-height:1;padding:.3rem .6rem;margin-right:.6rem;cursor:pointer}.topbar-right{display:flex;align-items:center;gap:.75rem}.workspace-switcher{display:inline-flex;align-items:center;gap:.45rem;color:var(--muted)}.workspace-label{text-transform:uppercase;letter-spacing:.05em;font-size:.68rem;font-weight:700}.workspace-switcher select,.sidebar-context select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:.35rem .55rem;font:inherit;font-size:.85rem}.workspace-pill{font-size:.82rem;color:var(--text);background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:.3rem .85rem}.account{position:relative}.account-btn{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:999px;padding:.42rem .95rem;font:inherit;font-size:.88rem;cursor:pointer}.account-btn:hover{border-color:var(--frontier)}.menu-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:transparent;border:none;cursor:default}.account-menu{position:absolute;right:0;top:calc(100% + .45rem);z-index:41;min-width:210px;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:.35rem;box-shadow:0 14px 36px #00000073}.menu-item{background:none;border:none;color:var(--text);text-align:left;padding:.55rem .7rem;border-radius:8px;font:inherit;font-size:.92rem;cursor:pointer}.menu-item:hover{background:var(--surface-2)}.menu-item.active{color:var(--frontier)}.app-body{display:grid;grid-template-columns:236px 1fr;gap:1.75rem;padding-top:1.5rem;align-items:start}.sidebar{position:sticky;top:4rem;display:flex;flex-direction:column;gap:1.25rem}.sidebar-context{display:flex;flex-direction:column;gap:.6rem;padding-bottom:1.1rem;border-bottom:1px solid var(--border)}.sidebar-context .ctx-field{display:flex;flex-direction:column;gap:.25rem;font-size:.78rem;color:var(--muted)}.sidebar-context select{width:100%}.side-nav{display:flex;flex-direction:column;gap:1.15rem}.nav-group{display:flex;flex-direction:column;gap:.1rem}.nav-group-label{margin:0 0 .35rem;padding:0 .65rem;text-transform:uppercase;letter-spacing:.07em;font-size:.68rem;font-weight:700;color:var(--muted)}.side-tab{background:none;border:none;border-left:2px solid transparent;color:var(--text);text-align:left;padding:.5rem .65rem;border-radius:8px;font:inherit;font-size:.92rem;cursor:pointer}.side-tab:hover{background:var(--surface)}.side-tab.active{background:var(--surface-2);color:var(--frontier);border-left-color:var(--frontier);font-weight:600}.app-main{max-width:none;margin:0;min-width:0;padding:1.5rem 0 0}@media(max-width:760px){.nav-toggle{display:inline-flex}.app-body{grid-template-columns:1fr}.sidebar{position:static;display:none}.sidebar.open{display:flex}}
