:root{color-scheme:light dark;--background:#faf7f2;--surface:#fff;--border:#e8e2d9;--text:#2b2f36;--primary:#2b7873;--secondary:#8fb8a8;--highlight:#8a92d6;--info:#536e87;--success:#45745a;--review:#8a92d6;--on-primary:#fff;--on-info:#fff;--on-success:#fff;--on-light:#2b2f36;--text-muted:#5a606a;--primary-hover:color-mix(in srgb,var(--primary) 85%,#000);--highlight-hover:color-mix(in srgb,var(--highlight) 85%,#fff);--review-text:#63699a;--highlight-text:var(--review-text);--surface-alt:color-mix(in srgb,var(--secondary) 10%,var(--surface));--primary-tint:color-mix(in srgb,var(--primary) 10%,var(--surface));--success-tint:color-mix(in srgb,var(--success) 10%,var(--surface));--review-tint:color-mix(in srgb,var(--review) 14%,var(--surface));--info-tint:color-mix(in srgb,var(--info) 10%,var(--surface));--highlight-tint:color-mix(in srgb,var(--highlight) 14%,var(--surface));--shadow:color-mix(in srgb,var(--text) 18%,transparent);--scene:#1c1f24;--scene-text:#f1efea;--scene-muted:#b8bcc2;--font-body:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;--font-display:"Young Serif",Georgia,"Times New Roman",serif;--dark-background:#1c1f24;--dark-surface:#252930;--dark-border:#3a3f48;--dark-text:#e8e6e1;--dark-primary:#5fb3ac;--dark-secondary:#7fa396;--dark-highlight:#a9b0ea;--dark-info:#8faecb;--dark-success:#7db894;--dark-review:#a9b0ea;--dark-on:#1c1f24;--dark-text-muted:#b0b4bb;--card-edge:transparent}@media screen and (prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--background:var(--dark-background);--surface:var(--dark-surface);--border:var(--dark-border);--text:var(--dark-text);--primary:var(--dark-primary);--secondary:var(--dark-secondary);--highlight:var(--dark-highlight);--info:var(--dark-info);--success:var(--dark-success);--review:var(--dark-review);--on-primary:var(--dark-on);--on-info:var(--dark-on);--on-success:var(--dark-on);--on-light:var(--dark-on);--text-muted:var(--dark-text-muted);--primary-hover:color-mix(in srgb,var(--primary) 85%,#fff);--highlight-hover:color-mix(in srgb,var(--highlight) 85%,#fff);--review-text:var(--review);--surface-alt:color-mix(in srgb,var(--secondary) 10%,var(--surface));--shadow:color-mix(in srgb,var(--scene) 70%,transparent);--card-edge:var(--border)}}@media screen{:root[data-theme=dark]{color-scheme:dark;--background:var(--dark-background);--surface:var(--dark-surface);--border:var(--dark-border);--text:var(--dark-text);--primary:var(--dark-primary);--secondary:var(--dark-secondary);--highlight:var(--dark-highlight);--info:var(--dark-info);--success:var(--dark-success);--review:var(--dark-review);--on-primary:var(--dark-on);--on-info:var(--dark-on);--on-success:var(--dark-on);--on-light:var(--dark-on);--text-muted:var(--dark-text-muted);--primary-hover:color-mix(in srgb,var(--primary) 85%,#fff);--highlight-hover:color-mix(in srgb,var(--highlight) 85%,#fff);--review-text:var(--review);--surface-alt:color-mix(in srgb,var(--secondary) 10%,var(--surface));--shadow:color-mix(in srgb,var(--scene) 70%,transparent);--card-edge:var(--border)}}:root[data-theme=light]{color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--text);font-family:var(--font-body);line-height:1.6;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}a{color:var(--primary);text-underline-offset:.25em}a:focus-visible,button:focus-visible{outline:3px solid var(--primary);outline-offset:3px}.wrap{padding:48px 24px}.app-header,.wrap{max-width:640px;margin:0 auto}.app-header{padding:20px 24px 0;display:flex;justify-content:space-between;align-items:center}.app-brand{font-family:var(--font-display);font-size:1.45rem;color:var(--primary);text-decoration:none}.app-header+.wrap{padding-top:24px}.theme-seg{display:inline-flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:var(--surface)}.theme-seg button{min-height:0;height:26px;min-width:30px;padding:0 6px;white-space:nowrap;line-height:1;font-size:14px;font-weight:500;border:0;border-radius:0;background:transparent;color:var(--text)}.theme-seg button:hover{background:var(--surface-alt)}.theme-seg button[aria-pressed=true]{background:var(--primary);color:var(--on-primary);font-weight:600}.theme-seg button:active:not(:disabled){transform:none}.theme-row{display:flex;align-items:center;gap:10px;margin-bottom:14px}@media print{.theme-row{display:none}}.eyebrow{font-family:var(--font-body);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);font-weight:600}h1,h2,h3{font-family:var(--font-display);font-weight:400}h1{font-size:2.4rem;line-height:1.15;margin:8px 0 4px}p.lead{font-family:var(--font-body);color:var(--text-muted);font-size:1.05rem;margin-top:0}.card{background:var(--surface);border:1px solid var(--card-edge);border-radius:16px;box-shadow:0 2px 10px var(--shadow);padding:28px;margin-top:24px}label{display:block;font-family:var(--font-body);font-size:13px;color:var(--text-muted);margin-bottom:6px}input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:4px;font-size:15px;margin-bottom:16px;font-family:inherit;color:var(--text);background:var(--surface)}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:1px}textarea{resize:vertical}.checkbox-label{display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px}.checkbox-label input{width:auto;margin:0}.site-footer{padding-top:0}button{font-family:var(--font-body);background:var(--primary);color:var(--on-primary);border:2px solid var(--primary);border-radius:4px;padding:10px 20px;font-size:15px;font-weight:600;cursor:pointer}button:hover{background:var(--primary-hover);border-color:var(--primary-hover)}button{border-radius:8px;border-bottom-width:4px;border-bottom-color:var(--primary-hover)}button:active:not(:disabled){transform:translateY(3px);border-bottom-width:1px}button.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}button.secondary:hover{background:var(--surface-alt);border-color:var(--border)}button.correct{background:var(--success);color:var(--on-success);border:none}button.incorrect{background:var(--review);color:var(--on-light);border:none}.pair-options button.correct:before,.q-options button.correct:before,button.correct:before{content:"\2713\00a0";font-weight:700}.pair-options button.incorrect:before,.q-options button.incorrect:before,button.incorrect:before{content:"\21BB\00a0";font-weight:700}button:disabled{cursor:default;opacity:1}.grade-row{display:flex;gap:8px}.grade-row button{flex:1 1;color:var(--on-primary);border:none;transition:filter .12s ease,transform .12s ease}.grade-row button:hover:not(:disabled){opacity:1;filter:brightness(1.08)}.grade-row button:active:not(:disabled){transform:translateY(1px)}.grade-row button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.grade-row button:disabled{opacity:.55}button.grade-again{background:var(--review);color:var(--on-light)}button.grade-hard{background:var(--info);color:var(--on-info)}button.grade-good{background:var(--primary);color:var(--on-primary)}button.grade-easy{background:var(--success);color:var(--on-success)}@media (max-width:400px){.grade-row{flex-wrap:wrap}.grade-row button{flex-grow:1;flex-shrink:1;flex-basis:calc(50% - 4px)}}.feedback-correct,.feedback-incorrect{font-family:var(--font-body);font-size:14px;font-weight:600;margin:4px 0 0}.feedback-correct{color:var(--success)}.feedback-correct:before{content:"\2713\00a0"}.feedback-incorrect{color:var(--review-text)}.feedback-incorrect:before{content:"\21BB\00a0"}.error{color:var(--review-text);font-size:13px;margin-top:-8px;margin-bottom:12px}.error,.progress-row{font-family:var(--font-body)}.progress-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}.progress-row:last-child{border-bottom:none}.badge{background:var(--success-tint);color:var(--success);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px}.top-nav{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-body);font-size:14px;margin-bottom:8px}.top-nav a{color:var(--text);text-decoration:none;margin-left:16px}.top-nav a:hover{color:var(--primary-hover)}.stat{font-size:2rem;font-weight:700}.stat,.stat-label{font-family:var(--font-body)}.stat-label{font-size:13px;color:var(--text-muted)}.stat-row{display:flex;gap:16px}.stat-box{flex:1 1;text-align:center}.streak-flame{font-size:1.4rem}h2{font-size:1.5rem;line-height:1.2}.progress-bar{height:10px;margin-top:20px;background:var(--surface-alt);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:999px}.level-ladder{list-style:none;margin:20px 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);grid-gap:6px;gap:6px}.level-step{border:2px solid var(--border);border-radius:4px;padding:8px 4px;text-align:center;background:var(--surface)}.level-code{display:block;font-family:var(--font-display);font-size:1.1rem}.level-meta{display:block;font-size:12px;color:var(--text-muted);min-height:1.2em}.level-done{background:var(--primary);border-color:var(--primary)}.level-done,.level-done .level-meta{color:var(--on-primary)}.level-in_progress{background:var(--primary-tint);border-color:var(--primary)}.level-current{box-shadow:0 0 0 3px var(--highlight)}.level-empty .level-code{color:var(--text-muted)}.milestone-list{list-style:none;margin:12px 0 0;padding:0}.milestone{position:relative;display:flex;gap:14px;padding-bottom:20px}.milestone:not(:last-child):before{content:"";position:absolute;left:8px;top:22px;bottom:0;width:2px;background:var(--border)}.milestone-marker{flex:0 0 18px;height:18px;margin-top:3px;border-radius:50%;border:2px solid var(--border);background:var(--surface)}.milestone:last-child{padding-bottom:0}.milestone-done .milestone-marker{background:var(--primary);border-color:var(--primary)}.milestone-in_progress .milestone-marker{background:var(--highlight);border-color:var(--highlight)}.milestone-body{flex:1 1;min-width:0}.milestone-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.milestone-title{font-family:var(--font-body);font-size:1rem;font-weight:600;margin:0}.milestone-desc{margin:4px 0 0;color:var(--text-muted);font-size:.95rem}.status-pill{flex:0 0 auto;font-size:12px;font-weight:600;padding:2px 10px;border-radius:999px;background:var(--surface-alt);color:var(--text-muted)}.status-done{background:var(--primary);color:var(--on-primary)}.status-in_progress{background:var(--highlight);color:var(--on-light)}.work-item{margin-top:10px;padding:10px 12px;border-left:3px solid var(--primary);background:var(--background);border-radius:0 4px 4px 0}.work-head{display:flex;justify-content:space-between;gap:12px}.work-score,.work-title{font-weight:600}.work-score{font-size:14px;color:var(--primary)}.work-note{margin:4px 0;white-space:pre-wrap;font-size:.95rem}.editor-row{display:flex;align-items:flex-start;gap:10px;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--border)}.editor-row:last-child{border-bottom:none}.editor-actions{display:flex;gap:6px;flex-wrap:wrap}.status-select{width:auto;margin:0;padding:6px 8px;font-size:14px}button.icon-btn{background:transparent;color:var(--primary);border:1px solid var(--border);padding:5px 10px;font-size:13px}button.icon-btn:hover:not(:disabled){background:var(--surface-alt);border-color:var(--border)}button.icon-btn:disabled{color:var(--border);cursor:default}.field-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}@media (max-width:480px){.level-ladder{grid-template-columns:repeat(3,1fr)}.field-row{grid-template-columns:1fr;gap:0}}.notice{color:var(--success);font-size:14px;font-weight:600;margin:-6px 0 12px}.roadmap-path{display:block;width:100%;height:auto;overflow:visible}.roadmap-path-tall{display:none;max-width:360px;margin:0 auto}@media (max-width:560px){.roadmap-path-wide{display:none}.roadmap-path-tall{display:block}}.road-base{fill:none;stroke:var(--surface-alt);stroke-width:22;stroke-linecap:round;stroke-linejoin:round}.road-dash{fill:none;stroke:var(--surface);stroke-width:2;stroke-dasharray:6 10;stroke-linecap:round}.road-done{fill:none;stroke:var(--primary);stroke-width:22;stroke-linecap:round;stroke-linejoin:round}.road-start{fill:var(--primary)}.road-label{font-family:var(--font-body);font-size:16px;font-weight:600;fill:var(--text-muted)}.stop-circle{stroke-width:3}.stop-code{font-family:var(--font-display);font-size:19px}.stop-done .stop-circle{fill:var(--primary);stroke:var(--primary)}.stop-done .stop-code{fill:var(--on-primary)}.stop-done .road-label{fill:var(--primary)}.stop-current .stop-circle{fill:var(--surface);stroke:var(--primary)}.stop-current .road-label,.stop-current .stop-code{fill:var(--text)}.stop-halo{fill:none;stroke:var(--highlight);stroke-width:5}.stop-upcoming .stop-circle{fill:var(--surface);stroke:var(--border)}.stop-upcoming .stop-code{fill:var(--text-muted)}.goal-flag line{stroke:var(--text);stroke-width:2.5}.goal-flag path,.you-are-here circle{fill:var(--highlight)}.you-are-here circle{stroke:var(--surface);stroke-width:3}.you-are-here .you-dot{fill:var(--text);stroke:none}.road-caption{margin:8px 0 0;text-align:center;color:var(--text-muted);font-size:15px}.you-key{display:inline-block;width:12px;height:12px;border-radius:50%;background:var(--highlight);box-shadow:inset 0 0 0 3px var(--text);vertical-align:-1px;margin-right:4px}.level-card-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px}.level-card-title{margin:4px 0 0;font-size:1.4rem}.level-card-count .stat{font-size:1.4rem}.level-card-head+.progress-bar{margin-top:10px}.section-label{font-family:var(--font-body);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin:22px 0 8px;padding:0}.can-do-group+.can-do-group{margin-top:12px}.can-do-skill{font-weight:600;color:var(--primary);font-size:14px;margin-bottom:4px}.can-do-list{list-style:none;margin:0;padding:0}.can-do-item{display:flex;gap:10px;align-items:flex-start;padding:4px 0;font-size:15px;line-height:1.45}.can-do-check{flex:0 0 20px;height:20px;margin-top:1px;border:2px solid var(--border);border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--on-primary)}.can-do-achieved .can-do-check{background:var(--primary);border-color:var(--primary)}.can-do-achieved{color:var(--text)}.can-do-item:not(.can-do-achieved){color:var(--text-muted)}.can-do-editor{border:none;margin:0 0 4px;padding:0}.can-do-toggle{align-items:flex-start;padding:5px 0;line-height:1.45;color:var(--text);font-size:14px;margin:0}.can-do-toggle input{margin-top:3px}.can-do-skill-inline{font-weight:600;color:var(--primary);margin-right:4px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}@media (max-width:640px){input,select,textarea{font-size:16px}button{min-height:44px}.top-nav{flex-wrap:wrap;gap:4px 12px}.top-nav>span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.top-nav a{display:inline-block;padding:10px 0;margin-left:12px}}.password-field{position:relative;margin-bottom:16px}.password-field input{padding-right:64px;margin-bottom:0}button.password-toggle{position:absolute;right:6px;top:4px;bottom:4px;width:auto;min-height:0;margin:0;padding:0 10px;background:transparent;color:var(--primary);border:none;font-size:14px}button.password-toggle:hover{background:var(--surface-alt);border:none}button.password-toggle:active:not(:disabled){transform:none;border:none}.goal-row{margin:12px 0}.goal-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:4px}.goal-bar{height:10px;background:var(--surface-alt);border-radius:5px;overflow:hidden}.goal-bar>span{display:block;height:100%;background:var(--primary);border-radius:5px}.goal-bar.done>span{background:var(--success)}.week-chart{gap:6px;height:110px;border-bottom:1px solid var(--border)}.week-chart,.week-chart .col{display:flex;align-items:flex-end}.week-chart .col{flex:1 1;height:100%}.week-chart .bar{width:100%;background:var(--border);border-radius:3px 3px 0 0}.week-chart .bar.current{background:var(--highlight)}.week-chart-labels{display:flex;gap:6px;font-size:12px;color:var(--text-muted)}.week-chart-labels span{flex:1 1;text-align:center;padding-top:4px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));grid-gap:20px 16px;gap:20px 16px}.tile-heading{margin:28px 0 10px}.tile-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:12px;gap:12px}.tile{display:flex;flex-direction:column;gap:4px;padding:16px 18px;background:var(--surface);border:solid var(--border);border-width:2px 2px 5px;border-radius:16px;color:var(--text);text-decoration:none;transition:transform 80ms ease}.tile:active{transform:translateY(3px);border-bottom-width:2px;margin-bottom:3px}.tile strong{font-size:16px}.tile span{font-size:13px;color:var(--text-muted)}.tile:hover{border-color:var(--primary)}@media (max-width:480px){.tile-grid{grid-template-columns:1fr}}.hours-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:10px}.hours-road{--stage-color:var(--primary);list-style:none;margin:8px 0 20px;padding:0;position:relative}.hours-road:before{content:"";position:absolute;left:50%;top:8px;bottom:8px;width:2px;margin-left:-1px;background:var(--border)}.hours-stage{position:relative;display:grid;grid-template-columns:1fr 24px 1fr;grid-template-areas:"badge dot text";align-items:center;grid-column-gap:8px;column-gap:8px;padding:14px 0;--stage-color:var(--primary)}.hours-stage.right{grid-template-areas:"text dot badge"}.hours-stage.stage-1{--stage-color:var(--primary)}.hours-stage.stage-2{--stage-color:var(--highlight)}.hours-stage.stage-3{--stage-color:var(--info)}.hours-stage.stage-4{--stage-color:var(--secondary)}.hours-stage.stage-5{--stage-color:var(--text)}.hours-stage.stage-6{--stage-color:var(--success)}.hours-stage.stage-7{--stage-color:var(--primary-hover)}.hours-badge{grid-area:badge;justify-self:end;width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:1.7rem;color:var(--text);background:var(--pastel,var(--border));opacity:.8}.hours-stage.right .hours-badge{justify-self:start}.hours-stage.reached .hours-badge{opacity:1;box-shadow:0 4px 10px var(--shadow)}.hours-dot{grid-area:dot;justify-self:center;width:14px;height:14px;border-radius:50%;background:var(--background);border:3px solid var(--border);position:relative}.hours-stage.reached .hours-dot{background:var(--stage-color);border-color:var(--stage-color)}.hours-stage.here .hours-dot{box-shadow:0 0 0 5px var(--highlight-tint)}.hours-text{grid-area:text;min-width:0}.hours-stage.right .hours-text{text-align:right}.hours-num{font-weight:700;font-size:1.05rem;color:var(--text-muted)}.hours-title{font-weight:600}.hours-blurb{font-size:13px;color:var(--text-muted);margin-top:2px;overflow-wrap:anywhere}.hours-stage.reached .hours-num{color:var(--text)}.hours-stage:not(.reached) .hours-title{color:var(--text-muted);font-weight:500}.hours-text .badge{margin-top:8px;display:inline-block}@media (max-width:380px){.hours-badge{width:44px;height:44px;font-size:1.4rem;border-radius:10px}}.guide-details>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:12px;padding:12px 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