:root{--paper: #f8f6ef;--raised: #fffcf3;--sunken: #f3efe5;--grid-line: rgba(31, 28, 23, .014);--ink: #151515;--ink-strong: #111111;--ink-mid: #5f594f;--ink-soft: #8a8275;--ink-faint: #bdb5aa;--line: rgba(35, 31, 25, .1);--line-strong: rgba(35, 31, 25, .14);--line-heavy: rgba(35, 31, 25, .22);--terra: #8f4b2e;--terra-bright: #c06b43;--terra-light: #d79b77;--terra-wash: rgba(143, 75, 46, .07);--sage: #7f9b92;--sage-wash: rgba(127, 155, 146, .12);--amber: #a07d32;--amber-wash: rgba(160, 125, 50, .1);--crimson: #a33a2c;--crimson-wash: rgba(163, 58, 44, .08);--sans: "Inter", "Helvetica Neue", Arial, ui-sans-serif, system-ui, sans-serif;--serif: Georgia, "Times New Roman", Times, serif;--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--tutor-w: 520px;--radius: 1.05rem;--radius-sm: .6rem;--shadow: 0 1.2rem 2.4rem rgba(35, 31, 25, .08);--shadow-sm: 0 .4rem 1rem rgba(35, 31, 25, .05)}*{box-sizing:border-box}html,body{margin:0;padding:0;background-color:var(--paper);background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:8px 8px;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body{transition:padding-right .22s ease}body.tutor-open{padding-right:var(--tutor-w)}button{font-family:var(--sans);font-size:.9rem;cursor:pointer;border:none}.hidden{display:none!important}::selection{background:#8f4b2e29}.topbar{position:sticky;top:0;z-index:45;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 1.4rem;min-height:3.9rem;background:#f8f6efeb;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:.6rem;cursor:pointer}.brand-mark{width:.72rem;height:.72rem;border-radius:3px;background:var(--terra)}.brand-name{font-weight:720;font-size:1.06rem;letter-spacing:-.01em;color:var(--ink-strong)}.topbar-right{display:flex;align-items:center;gap:.6rem}.xp-track{position:relative;width:11rem;height:1.6rem;background:#f8f6efc7;border:1px solid var(--line-strong);border-radius:999px;overflow:hidden}.xp-fill{position:absolute;inset:0;width:0%;background:linear-gradient(90deg,var(--terra-light),var(--terra));opacity:.9;transition:width .5s cubic-bezier(.2,.8,.2,1)}.xp-label{position:absolute;inset:0;display:grid;place-items:center;font-size:.74rem;font-weight:560;letter-spacing:.02em;color:var(--ink);mix-blend-mode:multiply}button.ghost{background:#f8f6efc7;color:var(--ink);border:1px solid var(--line-strong);padding:.34rem .8rem;border-radius:999px;font-weight:560;font-size:.84rem;transition:all .15s ease}button.ghost:hover{border-color:#8f4b2e80;color:var(--terra)}button.ghost.icon{padding:0;width:2rem;height:2rem;border-radius:999px;display:inline-grid;place-items:center;font-size:1.1rem;line-height:1}button.primary{background:var(--terra);color:#fffdf8;font-weight:600;padding:.55rem 1.3rem;border-radius:999px;font-size:.9rem;letter-spacing:.01em;box-shadow:var(--shadow-sm);transition:background .15s ease,transform .15s ease}button.primary:hover{background:var(--terra-bright)}button.primary:active{transform:translateY(1px)}button.primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}main{max-width:1120px;margin:0 auto;padding:3rem 1.4rem 0}body:has(#view-level:not(.hidden)) main{padding-bottom:8rem}body:has(#view-level:not(.hidden)) main{max-width:1320px}body.tutor-open main{margin-left:max(1.4rem,calc((100vw - var(--tutor-w) - 1120px) / 2))}.map-hero{margin-bottom:3.4rem;max-width:46rem}.map-hero h1{font-size:2.8rem;line-height:1.08;letter-spacing:-.03em;margin:0 0 1rem;font-weight:760;color:var(--ink-strong)}.lede{color:var(--ink-mid);max-width:42rem;margin:0 0 1.6rem;font-family:var(--serif);font-size:1.14rem;line-height:1.6}.hero-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.hero-note{color:var(--ink-soft);font-size:.86rem}.act{margin-bottom:3rem}.act-head{margin-bottom:1rem;padding-bottom:.7rem;border-bottom:1px solid var(--line)}.act-head h3{margin:0 0 .2rem;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--terra)}.act-head p{margin:0;color:var(--ink-mid);font-size:.94rem}.levels{display:grid;gap:.7rem}.level-card{display:grid;grid-template-columns:2.4rem 1fr auto;align-items:center;gap:1.1rem;padding:1rem 1.2rem;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}.level-card:hover:not(.locked){border-color:#8f4b2e66;box-shadow:var(--shadow-sm);transform:translateY(-1px)}.level-card.locked{opacity:.5;cursor:not-allowed;background:transparent}.level-card.done{border-color:#7f9b9273}.level-num{font-size:.78rem;font-weight:700;width:2.2rem;height:2.2rem;border-radius:999px;display:grid;place-items:center;background:#f8f6efe6;border:1px solid var(--line-strong);color:var(--ink-soft)}.level-card.done .level-num{background:var(--sage-wash);color:var(--sage);border-color:transparent}.level-card.started:not(.done) .level-num{border-color:var(--terra-light);color:var(--terra)}.level-info h4{margin:0 0 .12rem;font-size:1.02rem;font-weight:640;color:var(--ink-strong);letter-spacing:-.01em}.level-info p{margin:0;color:var(--ink-mid);font-size:.9rem}.level-meta{display:flex;align-items:center;gap:.6rem;font-size:.78rem;color:var(--ink-soft)}.pill{display:inline-flex;align-items:center;min-height:1.6rem;padding:.2rem .66rem;border-radius:999px;background:#f8f6efc7;border:1px solid var(--line-strong);font-size:.78rem;font-weight:560;color:var(--ink)}.pill.done{background:var(--sage-wash);color:var(--sage);border-color:transparent}.level-head{display:grid;grid-template-columns:1fr auto;align-items:start;gap:1.2rem;padding-bottom:1.3rem;margin-bottom:2rem;border-bottom:1px solid var(--line)}.back{align-self:center}.level-titles h2{margin:0 0 .3rem;font-size:2rem;font-weight:740;letter-spacing:-.025em;color:var(--ink-strong)}.level-titles p{margin:0;color:var(--terra);font-size:1.02rem;font-family:var(--serif);font-style:italic}.step-dots{display:flex;gap:.4rem;align-self:center}.dot{width:.5rem;height:.5rem;border-radius:999px;background:var(--line-heavy);transition:all .2s ease}.dot.active{background:var(--terra);transform:scale(1.3)}.dot.done{background:var(--sage)}.block{margin-bottom:1.8rem}.hook{padding:1.5rem 1.7rem;background:var(--terra-wash);border:1px solid rgba(143,75,46,.18);border-radius:var(--radius)}.step{border:1px solid var(--line);border-radius:var(--radius);background:var(--raised);overflow:hidden;margin-bottom:1.3rem}.step.is-done{border-color:#7f9b9266}.step-head{display:flex;align-items:center;gap:.75rem;padding:.95rem 1.3rem;border-bottom:1px solid var(--line);background:var(--sunken)}.kind{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:.2rem .6rem;border-radius:999px;background:var(--terra-wash);color:var(--terra);border:1px solid rgba(143,75,46,.22)}.kind.implement{background:#5e4d7a1a;color:#5e4d7a;border-color:#5e4d7a38}.kind.explain{background:var(--amber-wash);color:var(--amber);border-color:#a07d3238}.kind.inspect,.kind.compare{background:var(--sage-wash);color:#567a70;border-color:#7f9b924d}.step-head h3{margin:0;font-size:1.02rem;font-weight:640;flex:1;color:var(--ink-strong);letter-spacing:-.01em}.step-check{color:var(--sage);font-size:1.1rem}.step-body{padding:1.5rem 1.7rem}.prose{font-family:var(--serif);font-size:1.04rem;line-height:1.68;color:#211f1b}.prose p{margin:0 0 .9rem}.prose p:last-child{margin-bottom:0}.prose strong{color:var(--ink-strong);font-weight:700}.prose em{color:var(--ink-mid)}.prose ul,.prose ol{margin:0 0 .9rem;padding-left:1.4rem}.prose li{margin-bottom:.35rem}.prose h4{margin:1.5rem 0 .6rem;font-family:var(--sans);font-size:.88rem;font-weight:700;letter-spacing:.02em;color:var(--ink-strong)}.prose code{font-family:var(--mono);font-size:.82em;background:#8f4b2e12;padding:.1rem .34rem;border-radius:4px;color:#6f3a22;border:1px solid rgba(143,75,46,.12)}.prose pre{background:#2c2823;border:1px solid rgba(0,0,0,.2);border-radius:var(--radius-sm);padding:1rem 1.1rem;overflow-x:auto;margin:0 0 1rem}.prose pre code{background:none;border:none;padding:0;color:#e8e2d6;font-size:.8rem;line-height:1.6}.prose blockquote{margin:0 0 1rem;padding:.3rem 0 .3rem 1.1rem;border-left:3px solid var(--terra-light);color:var(--ink-mid);font-style:italic}.prose table{border-collapse:collapse;width:100%;margin:0 0 1rem;font-family:var(--sans);font-size:.9rem}.prose th,.prose td{text-align:left;padding:.5rem .8rem;border-bottom:1px solid var(--line)}.prose th{color:var(--ink-mid);font-weight:600;font-size:.74rem;text-transform:uppercase;letter-spacing:.08em}.choices{display:grid;gap:.6rem;margin:1.2rem 0}.choice{display:flex;align-items:flex-start;gap:.8rem;padding:.9rem 1.1rem;background:#f8f6ef99;border:1px solid var(--line-strong);border-radius:var(--radius-sm);cursor:pointer;transition:all .14s ease;text-align:left;color:var(--ink);font-size:.98rem;line-height:1.5;width:100%;flex-wrap:wrap;font-family:var(--serif)}.choice>span:nth-child(2){flex:1;min-width:0}.choice:hover:not(:disabled){border-color:var(--terra-light);background:var(--raised)}.choice.selected{border-color:var(--terra);background:var(--terra-wash)}.choice.correct{border-color:var(--sage);background:var(--sage-wash)}.choice.wrong{border-color:var(--crimson);background:var(--crimson-wash)}.choice:disabled{cursor:default}.choice-key{font-family:var(--sans);font-size:.72rem;font-weight:700;width:1.4rem;height:1.4rem;border-radius:999px;flex-shrink:0;display:grid;place-items:center;margin-top:.1rem;background:var(--paper);border:1px solid var(--line-strong);color:var(--ink-soft)}.choice-note{flex-basis:100%;margin-top:.7rem;padding-top:.7rem;border-top:1px solid var(--line-strong);font-size:.9rem;color:var(--ink-mid);line-height:1.55}.choice-note.prose{font-size:.9rem}.choice-note.prose p{margin:0 0 .4rem}.choice-note.prose p:last-child{margin-bottom:0}.confidence{display:flex;align-items:center;gap:.5rem;margin:1rem 0;flex-wrap:wrap}.confidence span{font-size:.86rem;color:var(--ink-soft)}.conf-btn{background:#f8f6efc7;border:1px solid var(--line-strong);color:var(--ink-mid);padding:.26rem .8rem;border-radius:999px;font-size:.8rem;font-weight:560}.conf-btn.on{border-color:var(--terra);color:var(--terra);background:var(--terra-wash)}.editor-wrap{border:1px solid var(--line-strong);border-radius:var(--radius-sm);overflow:hidden;background:#2c2823}.editor-bar{display:flex;align-items:center;justify-content:space-between;padding:.5rem .8rem;background:#24211d;border-bottom:1px solid rgba(255,255,255,.07);font-size:.76rem;color:#a9a093}.editor-bar .tabs{display:flex;gap:.25rem}.editor-bar .tab{background:transparent;border:1px solid transparent;color:#8a8275;padding:.18rem .6rem;border-radius:999px;font-family:var(--mono);font-size:.74rem}.editor-bar .tab.on{color:#f3efe5;background:#ffffff12}.actions{display:flex;align-items:center;gap:.7rem;margin-top:1.1rem;flex-wrap:wrap}.save-state{font-size:.78rem;color:var(--ink-soft)}pre.readonly-code{margin:0;max-height:28rem;overflow:auto;background:#2c2823;padding:1rem 1.1rem;color:#cfc8ba;font-family:var(--mono);font-size:.78rem;line-height:1.6}.result{margin-top:1.1rem;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line-strong)}.result-head{display:flex;align-items:center;gap:.6rem;padding:.8rem 1.1rem;font-weight:600;font-size:.94rem}.result.pass .result-head{background:var(--sage-wash);color:#4a6a60}.result.fail .result-head{background:var(--crimson-wash);color:var(--crimson)}.result-time{margin-left:auto;font-family:var(--mono);font-size:.72rem;opacity:.7;font-weight:400}.result-body{padding:1rem 1.1rem;background:var(--sunken)}.fail-line{font-family:var(--mono);font-size:.8rem;color:#7d2b20;background:#a33a2c12;padding:.7rem .9rem;border-radius:var(--radius-sm);border-left:3px solid var(--crimson);white-space:pre-wrap;word-break:break-word;line-height:1.5}.fail-list{margin:.7rem 0 0;padding-left:1.2rem;font-family:var(--mono);font-size:.76rem;color:var(--ink-mid)}details.raw{margin-top:.8rem}details.raw summary{cursor:pointer;font-size:.82rem;color:var(--ink-soft)}details.raw pre{margin:.6rem 0 0;max-height:20rem;overflow:auto;font-family:var(--mono);font-size:.74rem;background:#2c2823;color:#cfc8ba;padding:.8rem;border-radius:var(--radius-sm)}.hints{margin-top:1rem}.hint{display:flex;gap:.7rem;padding:.8rem 1rem;margin-bottom:.5rem;background:var(--amber-wash);border-left:3px solid var(--amber);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.92rem;color:#6b5420;font-family:var(--serif);line-height:1.55}.hint-n{font-family:var(--sans);font-size:.72rem;opacity:.7;flex-shrink:0;padding-top:.15rem;font-weight:600}.reveal{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--raised);overflow:hidden;box-shadow:var(--shadow-sm)}.reveal-head{padding:.85rem 1.4rem;background:var(--sunken);border-bottom:1px solid var(--line);font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--terra)}.reveal-body{padding:1.5rem 1.7rem}.transfer{padding:1.4rem 1.7rem;background:var(--sage-wash);border:1px solid rgba(127,155,146,.3);border-radius:var(--radius)}.after{margin-top:1.2rem;padding:1.2rem 1.4rem;background:var(--sage-wash);border:1px solid rgba(127,155,146,.28);border-radius:var(--radius-sm)}.nav-foot{display:flex;justify-content:space-between;margin-top:2.6rem;gap:1rem}aside#tutor{position:fixed;top:0;right:0;bottom:0;width:var(--tutor-w);display:flex;flex-direction:column;background:var(--raised);border-left:1px solid var(--line-strong);z-index:50;min-width:0;box-shadow:-1.2rem 0 2.4rem #231f190d}.tutor-grip{position:absolute;left:-3px;top:0;bottom:0;width:7px;cursor:col-resize;z-index:2}.tutor-grip:hover{background:linear-gradient(90deg,transparent,rgba(143,75,46,.25))}.tutor-head{display:flex;align-items:center;justify-content:space-between;padding:0 1.1rem;min-height:3.9rem;border-bottom:1px solid var(--line);flex-shrink:0;background:var(--raised)}.tutor-head strong{font-weight:700;color:var(--ink-strong)}.tutor-sub{color:var(--ink-soft);font-size:.78rem;margin-left:.5rem}.tutor-log{flex:1 1 auto;min-height:0;overflow-y:auto;padding:1.2rem 1.1rem}.tutor-intro{color:var(--ink-mid);font-size:.92rem;font-family:var(--serif)}.tutor-intro p{margin:0 0 .6rem}.chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1rem}.chip{background:#f8f6efc7;border:1px solid var(--line-strong);color:var(--ink);padding:.28rem .74rem;border-radius:999px;font-size:.82rem;font-weight:560;text-align:left;transition:all .14s ease;font-family:var(--sans)}.chip:hover{border-color:#8f4b2e80;color:var(--terra)}.msg{margin-bottom:1.3rem;font-size:.94rem;line-height:1.6;max-width:100%}.msg-who{display:flex;align-items:center;gap:.45rem;font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:.4rem;font-family:var(--sans)}.msg-who .who-dot{width:.4rem;height:.4rem;border-radius:999px;flex-shrink:0}.msg.you .msg-who{color:var(--terra)}.msg.you .msg-who .who-dot{background:var(--terra)}.msg.tutor .msg-who{color:#567a70}.msg.tutor .msg-who .who-dot{background:var(--sage)}.msg-text{overflow-wrap:anywhere}.msg.you .msg-text{background:var(--terra-wash);border:1px solid rgba(143,75,46,.2);border-radius:4px .7rem .7rem;padding:.7rem .9rem;color:#6b3a22;white-space:pre-wrap;font-family:var(--serif)}.msg.tutor .msg-text{background:#f8f6efb3;border:1px solid var(--line-strong);border-radius:4px .7rem .7rem;padding:.8rem 1rem;color:var(--ink)}.msg.tutor .prose{font-size:.94rem}.msg.tutor .prose p{margin:0 0 .7rem}.msg.tutor .prose p:last-child{margin-bottom:0}.msg.tutor .prose pre{font-size:.76rem;margin:0 0 .7rem;padding:.7rem .8rem}.msg.tutor .prose ul,.msg.tutor .prose ol{margin:0 0 .7rem;padding-left:1.2rem}.msg.tutor .prose li{margin-bottom:.25rem}.msg.err .msg-text{background:var(--crimson-wash);border:1px solid rgba(163,58,44,.3);color:#7d2b20;border-radius:var(--radius-sm);padding:.7rem .9rem;font-size:.88rem}.msg.err .msg-who{color:var(--crimson)}.msg.err .msg-who .who-dot{background:var(--crimson)}.tool-trace{font-family:var(--mono);font-size:.72rem;color:var(--ink-soft);padding:.15rem 0}.cursor-blink{display:inline-block;width:.45rem;height:.9rem;vertical-align:text-bottom;background:var(--terra);animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.tutor-input{display:flex;gap:.6rem;padding:.85rem .9rem;border-top:1px solid var(--line);flex-shrink:0;align-items:flex-end;background:var(--raised)}.tutor-input textarea{flex:1;resize:none;background:#f8f6efcc;border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:.55rem .8rem;color:var(--ink);font-family:var(--sans);font-size:.9rem;line-height:1.5;outline:none}.tutor-input textarea:focus{border-color:var(--terra-light)}.tutor-input textarea::placeholder{color:var(--ink-faint)}.modal{position:fixed;inset:0;z-index:90;background:#231f1959;backdrop-filter:blur(4px);display:grid;place-items:center;padding:1.5rem}.modal-card{background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--radius);max-width:44rem;width:100%;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow)}.modal-head{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.3rem;border-bottom:1px solid var(--line)}.modal-head strong{font-weight:700;color:var(--ink-strong)}.modal-body{padding:1.3rem;overflow-y:auto}.ach{display:flex;gap:.85rem;padding:.85rem 0;border-bottom:1px solid var(--line)}.ach:last-child{border:none}.ach-mark{width:2.2rem;height:2.2rem;border-radius:999px;flex-shrink:0;display:grid;place-items:center;font-size:1rem;background:#f8f6efcc;border:1px solid var(--line-strong)}.ach.earned .ach-mark{background:var(--amber-wash);border-color:var(--amber);color:var(--amber)}.ach.locked{opacity:.45}.ach-text strong{display:block;font-size:.94rem;color:var(--ink-strong)}.ach-text span{font-size:.88rem;color:var(--ink-mid);font-family:var(--serif)}.toast-stack{position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%);z-index:100;display:flex;flex-direction:column;gap:.6rem;align-items:center}.toast{background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:.8rem 1.3rem;font-size:.92rem;box-shadow:var(--shadow);color:var(--ink);animation:rise .3s cubic-bezier(.2,.8,.2,1);display:flex;align-items:center;gap:.7rem}.toast.win{border-color:var(--amber)}@keyframes rise{0%{opacity:0;transform:translateY(.8rem)}}.concept-grid{display:grid;gap:.5rem}.concept-row{display:grid;grid-template-columns:1fr auto auto;gap:.8rem;align-items:center;padding:.6rem .85rem;background:#f8f6efb3;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:.9rem}.bar{width:5.5rem;height:.35rem;background:var(--line);border-radius:999px;overflow:hidden}.bar i{display:block;height:100%;background:var(--terra-light)}.tag{font-size:.66rem;padding:.12rem .5rem;border-radius:999px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}.tag.solid{background:var(--sage-wash);color:#4a6a60}.tag.shaky{background:var(--amber-wash);color:var(--amber)}.tag.weak{background:var(--crimson-wash);color:var(--crimson)}.tag.untouched{background:#f8f6efe6;color:var(--ink-faint)}@media(max-width:1400px){body.tutor-open main{margin-left:1.4rem;margin-right:0}}@media(max-width:900px){body.tutor-open{padding-right:0}aside#tutor{width:100%}.map-hero h1{font-size:2.1rem}}.term{border:1px solid rgba(35,31,25,.22);border-radius:var(--radius-sm);overflow:hidden;background:#24211d;box-shadow:var(--shadow-sm)}.term-inline{margin-top:1rem}.term-bar{display:flex;align-items:center;gap:.6rem;padding:.5rem .8rem;background:#1c1a16;border-bottom:1px solid rgba(255,255,255,.07)}.term-dots{display:flex;gap:.3rem}.term-dots i{width:.6rem;height:.6rem;border-radius:999px;background:#ffffff24}.term-dots i:first-child{background:#e0705c80}.term-dots i:nth-child(2){background:#d4a65780}.term-dots i:last-child{background:#8fbf8a80}.term-title{flex:1;font-family:var(--mono);font-size:.74rem;color:#8a8275;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.term-status{font-family:var(--mono);font-size:.7rem;font-weight:500;padding:.1rem .5rem;border-radius:999px;color:#8a8275}.term-status.running{color:#e4c07a;background:#e4c07a1f}.term-status.ok{color:#a8d4a2;background:#a8d4a224}.term-status.bad{color:#f08a76;background:#f08a7624}.term-body{margin:0;padding:.9rem 1rem;max-height:22rem;min-height:4rem;overflow:auto;font-family:var(--mono);font-size:.78rem;line-height:1.55;color:#d8d2c6;white-space:pre-wrap;word-break:break-word;background:#24211d}.term-body>div{min-height:1.2em}.term-cmd{color:#e8e2d6;font-weight:500;margin-bottom:.3rem}.term-prompt{color:var(--terra-light);font-weight:600;margin-right:.3rem}.term-hint{color:#6f685c;font-style:italic}textarea.plain-answer{width:100%;min-height:10rem;resize:vertical;background:#f8f6efb3;border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:.8rem 1rem;color:var(--ink);font-family:var(--serif);font-size:1rem;line-height:1.6;outline:none}textarea.plain-answer:focus{border-color:var(--terra-light)}textarea.plain-answer::placeholder{color:var(--ink-faint);font-style:italic}button.ghost.danger{border-color:#a33a2c59;color:var(--crimson)}button.ghost.danger:hover{border-color:var(--crimson);background:var(--crimson-wash)}button.ghost.danger:disabled{opacity:.5;cursor:not-allowed}.level-layout{display:grid;grid-template-columns:5.5rem minmax(0,1fr) 14rem;gap:1.6rem;align-items:start}.level-rail{position:sticky;top:5rem}.rail-back{width:100%;justify-content:center}.level-toc{position:sticky;top:5rem;max-height:calc(100vh - 7rem);overflow-y:auto;padding-left:1rem;border-left:1px solid var(--line)}.toc-head{font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.7rem}.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:.1rem}.toc-list a{display:flex;gap:.45rem;align-items:flex-start;padding:.32rem .4rem;border-radius:var(--radius-sm);font-size:.82rem;line-height:1.35;color:var(--ink-mid);text-decoration:none;transition:all .14s ease}.toc-list a:hover{background:#8f4b2e0f;color:var(--ink)}.toc-list a.active{color:var(--terra);font-weight:600;background:var(--terra-wash)}.toc-list a.done{color:var(--ink-soft)}.toc-mark{flex-shrink:0;width:.8rem;opacity:.65}.toc-list a.done .toc-mark{color:var(--sage);opacity:1}@media(max-width:1240px){.level-layout{grid-template-columns:4.5rem minmax(0,1fr)}.level-toc{display:none}}@media(max-width:820px){.level-layout{grid-template-columns:1fr}.level-rail{position:static;margin-bottom:1rem}.rail-back{width:auto}}.sel-bubble{position:absolute;z-index:60;transform:translate(-50%);display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .85rem;border-radius:999px;background:var(--ink-strong);color:#f8f6ef;font-family:var(--sans);font-size:.8rem;font-weight:560;box-shadow:0 .5rem 1.4rem #231f1947;animation:rise .14s ease;white-space:nowrap}.sel-bubble:hover{background:var(--terra)}.sel-bubble-icon{opacity:.7}.tutor-quote{padding:.7rem .9rem 0;flex-shrink:0}.quote-card{display:flex;gap:.5rem;align-items:flex-start;padding:.55rem .7rem;background:var(--terra-wash);border:1px solid rgba(143,75,46,.22);border-left:3px solid var(--terra);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.quote-text{flex:1;min-width:0;font-family:var(--serif);font-size:.84rem;line-height:1.45;color:#6b3a22;max-height:5.5rem;overflow-y:auto;white-space:pre-wrap;word-break:break-word}.quote-drop{flex-shrink:0;width:1.5rem;height:1.5rem;font-size:.95rem}.msg-quote{margin-bottom:.4rem;padding:.45rem .65rem;background:#8f4b2e0f;border-left:2px solid rgba(143,75,46,.4);border-radius:0 4px 4px 0;font-family:var(--serif);font-size:.82rem;line-height:1.4;color:var(--ink-mid);max-height:7rem;overflow-y:auto;white-space:pre-wrap;word-break:break-word}.editor-tools{display:flex;gap:.25rem;margin-left:auto;margin-right:.6rem}.editor-tools .tab{color:#a9a093}.editor-tools .tab:hover{color:#f3efe5;background:#ffffff12}figure.diagram{margin:1.4rem 0;padding:1.2rem 1rem;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius)}figure.diagram svg{display:block;margin:0 auto}figure.diagram figcaption{margin-top:.9rem;padding-top:.8rem;border-top:1px solid var(--line);font-family:var(--sans);font-size:.82rem;color:var(--ink-soft);text-align:center}.tutor-sub.clickable{cursor:pointer;border-bottom:1px dashed var(--line-strong)}.tutor-sub.clickable:hover{color:var(--terra);border-bottom-color:var(--terra)}.model-list{display:grid;gap:.4rem;max-height:50vh;overflow-y:auto}.model-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;width:100%;text-align:left;padding:.6rem .85rem;background:#f8f6efb3;border:1px solid var(--line);border-radius:var(--radius-sm);font-family:var(--sans);font-size:.9rem;color:var(--ink);transition:all .14s ease}.model-row:hover{border-color:var(--terra-light);background:var(--raised)}.model-row.on{border-color:var(--terra);background:var(--terra-wash)}.model-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.model-meta{display:flex;align-items:center;gap:.5rem;flex-shrink:0;font-size:.76rem;color:var(--ink-soft)}.pill.warn{background:var(--amber-wash);color:var(--amber);border-color:transparent}.rail-back{display:inline-flex;align-items:center;gap:.4rem}.rail-back svg{flex-shrink:0;opacity:.75}.rail-back:hover svg{opacity:1}a.specimen-link{color:inherit;text-decoration:none;border-bottom:1px solid rgba(143,75,46,.35)}a.specimen-link:hover{color:var(--terra);border-bottom-color:var(--terra)}a.specimen-link svg{margin-left:.15em;opacity:.5;vertical-align:-.05em}a.specimen-link:hover svg{opacity:1}a.ghost{display:inline-flex;align-items:center;gap:.3rem;background:#f8f6efc7;color:var(--ink);border:1px solid var(--line-strong);padding:.34rem .8rem;border-radius:999px;font-weight:560;font-size:.84rem;text-decoration:none;transition:all .15s ease}a.ghost:hover{border-color:#8f4b2e80;color:var(--terra)}.landing{margin-bottom:4rem}.hero{position:relative;isolation:isolate;margin:1rem 0 3rem}.hero>*{max-width:52rem}.hero:before{content:"";position:absolute;z-index:-1;left:50%;width:100vw;transform:translate(-50%);top:-3.5rem;bottom:-1rem;background-image:url(../hero-background.svg);background-position:center top;background-size:cover;background-repeat:no-repeat;opacity:.4;-webkit-mask-image:linear-gradient(to bottom,transparent,#000 18%,#000 68%,transparent);mask-image:linear-gradient(to bottom,transparent,#000 18%,#000 68%,transparent);pointer-events:none}.hero h1{font-size:clamp(1.75rem,4.1vw,3rem);line-height:1.08;letter-spacing:-.035em;margin:0 0 1.1rem;font-weight:780;color:var(--ink-strong);text-wrap:balance}.hero h1 .hero-line{display:block;white-space:nowrap}.hero-accent{color:var(--terra)}.hero-tagline{font-family:var(--serif);font-size:1.22rem;line-height:1.5;color:var(--ink);margin:0 0 1.2rem;font-style:italic}.tagline-line{display:block}.tagline-stress{font-weight:700;font-style:normal;color:var(--terra)}.hero-lede{color:var(--ink-mid);font-size:1.02rem;line-height:1.65;margin:0 0 1.8rem;max-width:42rem}.hero-lede p{margin:0 0 .7rem}.hero-lede .lede-close{margin:0;font-weight:600;color:var(--ink-strong)}.hero-actions{display:flex;align-items:center;gap:1.1rem;flex-wrap:wrap}button.primary.large{padding:.75rem 1.7rem;font-size:1rem}.landing-diagram{margin:0 0 3.2rem}.landing-diagram figure.diagram{margin:0;background:var(--raised)}.pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.1rem;margin-bottom:3.2rem}.pillar{padding:1.4rem 1.5rem;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius)}.pillar-icon{width:2.4rem;height:2.4rem;border-radius:10px;display:grid;place-items:center;margin-bottom:.9rem;background:var(--terra-wash);color:var(--terra);border:1px solid rgba(143,75,46,.18)}.pillar h3{margin:0 0 .5rem;font-size:1.02rem;font-weight:680;color:var(--ink-strong);letter-spacing:-.01em}.pillar p{margin:0;font-family:var(--serif);font-size:.96rem;line-height:1.6;color:var(--ink-mid)}.outcomes{margin-bottom:3.2rem}.outcomes h2{font-size:1.5rem;font-weight:720;letter-spacing:-.02em;margin:0 0 1.1rem;color:var(--ink-strong)}.outcomes ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem}.outcomes li{display:flex;gap:.65rem;align-items:flex-start;font-family:var(--serif);font-size:1rem;line-height:1.5;color:var(--ink)}.outcomes .tick{color:var(--sage);flex-shrink:0;font-weight:700}.philosophy{display:grid;grid-template-columns:minmax(0,20rem) minmax(0,1fr);gap:2rem;align-items:start;padding:1.8rem 2rem;margin-bottom:3.2rem;background:var(--terra-wash);border:1px solid rgba(143,75,46,.18);border-radius:var(--radius)}.philosophy blockquote{margin:0;padding:0;border:none}.philosophy blockquote p{font-family:var(--serif);font-size:1.32rem;line-height:1.35;font-style:italic;color:var(--ink-strong);margin:0 0 .6rem}.philosophy cite{font-style:normal;font-size:.84rem;color:var(--terra);font-weight:600}.philosophy>p{margin:0;font-family:var(--serif);font-size:1rem;line-height:1.65;color:var(--ink-mid)}.specimen-note{padding:1.5rem 1.7rem;margin-bottom:3rem;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius)}.specimen-note h3{margin:0 0 .5rem;font-size:1.02rem;font-weight:680;color:var(--ink-strong)}.specimen-note p{margin:0 0 .9rem;font-family:var(--serif);font-size:.98rem;line-height:1.6;color:var(--ink-mid);max-width:46rem}.trusted{margin:5.5rem 0 3.5rem}.trusted-label{font-size:1.05rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-mid);margin:0 0 1.4rem;text-align:center}.trusted-marquee{overflow:hidden;position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.3rem 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}.trusted-track{display:flex;gap:3.6rem;width:max-content;animation:drift 32s linear infinite}.trusted-item{font-size:1.65rem;font-weight:650;letter-spacing:-.015em;color:var(--ink-soft);white-space:nowrap;transition:color .2s ease}.trusted-item:hover{color:var(--ink-mid)}@keyframes drift{0%{transform:translate(0)}to{transform:translate(-50%)}}@media(prefers-reduced-motion:reduce){.trusted-track{animation:none;flex-wrap:wrap;justify-content:center}}.curriculum-head{padding-top:1rem;margin-bottom:1.6rem;border-top:1px solid var(--line)}.curriculum-head h2{margin:0 0 .3rem;font-size:1.6rem;font-weight:740;letter-spacing:-.025em;color:var(--ink-strong)}.curriculum-head p{margin:0;color:var(--ink-mid);font-size:.98rem}@media(max-width:900px){.hero h1{font-size:2.2rem}.pillars,.outcomes ul{grid-template-columns:1fr}.philosophy{grid-template-columns:1fr;gap:1.2rem}}.specimen-row{display:flex;flex-wrap:wrap;gap:.45rem;margin:0 0 .9rem}.specimen-chip{display:inline-flex;align-items:stretch;border:1px solid var(--line-strong);border-radius:999px;overflow:hidden;background:#f8f6efc7}.specimen-chip:hover{border-color:#8f4b2e73}.chip-main{background:none;border:none;cursor:pointer;padding:.3rem .5rem .3rem .8rem;font-family:var(--mono);font-size:.74rem;color:var(--ink)}.chip-main:hover{color:var(--terra)}.chip-link{display:inline-grid;place-items:center;padding:0 .6rem 0 .35rem;color:var(--ink-soft);border-left:1px solid var(--line);text-decoration:none}.chip-link:hover{color:var(--terra);background:var(--terra-wash)}.stance{margin:0 0 1.2rem}.stance-q{font-weight:600;font-size:.98rem;margin:0 0 .7rem;color:var(--ink-strong)}.writing{margin:0 0 .6rem}.writing-prompt{font-family:var(--serif);font-size:1rem;font-style:italic;color:var(--terra);margin:0 0 .6rem}.landing-diagram figure.diagram{padding:1.8rem 1.6rem}.landing-diagram figure.diagram svg{max-width:100%}.brand{display:flex;align-items:baseline;gap:.5rem}.brand-mark{cursor:pointer;align-self:center}.brand-name{cursor:pointer}.brand-by{font-size:.74rem;color:var(--ink-soft);font-weight:500}.brand-by a{color:var(--ink-mid);text-decoration:none;border-bottom:1px solid var(--line-strong)}.brand-by a:hover{color:var(--terra);border-bottom-color:var(--terra)}.prereq{padding:1.5rem 1.7rem;margin-bottom:3.2rem;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius)}.prereq h3{margin:0 0 .6rem;font-size:1.02rem;font-weight:680;color:var(--ink-strong)}.prereq>p{margin:0 0 1rem;font-family:var(--serif);font-size:.98rem;line-height:1.6;color:var(--ink-mid);max-width:46rem}.prereq-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.prereq-list li{display:flex;gap:.55rem;align-items:baseline;font-size:.92rem;color:var(--ink)}.prereq-mark{flex-shrink:0;font-weight:700}.prereq-list .need .prereq-mark{color:var(--sage)}.prereq-list .taught{color:var(--ink-soft)}.prereq-list .taught .prereq-mark{color:var(--ink-faint)}.trusted-item.mark-serif{font-family:var(--serif);font-weight:600;letter-spacing:.01em}.trusted-item.mark-sans{font-family:var(--sans);font-weight:650}.landing-footer{padding:1.4rem 0 2rem;margin-bottom:0;border-top:1px solid var(--line)}#view-map{display:flex;flex-direction:column;min-height:calc(100vh - 8rem)}.landing-foot{margin-top:auto}.landing-footer p{margin:0;font-size:.84rem;color:var(--ink-soft);line-height:1.6}.landing-footer a{color:var(--ink-mid);text-decoration:none;border-bottom:1px solid var(--line-strong)}.landing-footer a:hover{color:var(--terra);border-bottom-color:var(--terra)}@media(max-width:900px){.prereq-list{grid-template-columns:1fr}.brand-by{display:none}}