@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600&family=JetBrains+Mono:wght@400;500;700&display=swap";html,body,#root{width:100%;height:100%;margin:0;padding:0}html{background:var(--canvas,#fcfbf9);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}:root{--canvas:#f0eee9;--card:#fff;--surface-1:#e9e6e0;--surface-2:#dcd8d0;--line:#dfdbd3;--line-strong:#c3bdb2;--ink-900:#1a1815;--ink-700:#46423b;--ink-500:#676259;--ink-400:#8a847a;--ink-300:#c3bdb2;--shell-bottom:0px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--r-full:999px;--edge:var(--ink-900);--edge-w:2px;--e-0:0 0 0 var(--edge-w) var(--edge);--e-1:2px 2px 0 var(--edge);--e-2:3px 3px 0 var(--edge);--e-3:5px 5px 0 var(--edge);--e-4:7px 7px 0 var(--edge);--press:2px 2px 0 var(--edge);--press-travel:2px;--dur-fast:.11s;--dur-base:.19s;--dur-slow:.34s;--dur-slower:.62s;--ease:cubic-bezier(.22, 1, .36, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--ease-in-out:cubic-bezier(.4, 0, .2, 1);--gold-solid:#c8901a;--gold-ink:#7a5200;--gold-deep:#9a6d0f;--gold-surface:#faf6ec;--gold-raised:#f2e7ce;--gold-border:#dfcca1;--green-solid:#2f7d53;--green-ink:#1f6640;--green-deep:#1b5b39;--green-surface:#f1f7f3;--green-raised:#dbebe1;--green-border:#b0d2bf;--red-solid:#b4453c;--red-ink:#983127;--red-deep:#8b2c23;--red-surface:#fbf2f1;--red-raised:#f2dcd9;--red-border:#dfaea8;--blue-solid:#2f5e96;--blue-ink:#24507f;--blue-deep:#1f4570;--blue-surface:#f1f5fa;--blue-raised:#dce6f1;--blue-border:#abc3dc;--violet-solid:#645291;--violet-ink:#52427a;--violet-deep:#463769;--violet-surface:#f5f2f9;--violet-raised:#e5dfef;--violet-border:#c2b8db;--amber-solid:#b7791f;--amber-ink:#875811;--amber-deep:#8e5c13;--amber-surface:#fbf7ee;--amber-raised:#f3e8d1;--amber-border:#dfc79b;--indigo-solid:#23486f;--indigo-ink:#1d3d60;--indigo-deep:#132b45;--indigo-surface:#f1f4f8;--indigo-raised:#dee6ef;--indigo-border:#a9bcd2;--teal-solid:#2e7d74;--teal-ink:#20635b;--teal-deep:#1b564f;--teal-surface:#f0f6f5;--teal-raised:#d8eae7;--teal-border:#a6cec8;--slate-solid:#64707f;--slate-ink:#48525f;--slate-deep:#353d48;--slate-surface:#f3f5f8;--slate-raised:#e3e7ed;--slate-border:#c1c9d3;--bg-page:var(--canvas);--bg-card:var(--card);--bg-card-hover:#fdfcfa;--bg-input:var(--card);--primary:var(--indigo-solid);--primary-ink:var(--indigo-ink);--primary-gradient:linear-gradient(178deg, #2c5686 0%, #23486f 55%, #1d3d60 100%);--primary-dark:var(--indigo-deep);--primary-glow:#23486f38;--brand:var(--gold-solid);--brand-ink:var(--gold-ink);--brand-gradient:linear-gradient(178deg, #e0ae43 0%, #c8901a 60%, #9a6d0f 100%);--brand-glow:#c8901a42;--text-primary:var(--ink-900);--text-secondary:var(--ink-700);--text-muted:var(--ink-500);--text-label:var(--ink-500);--white-90:#1a1917e6;--border:var(--line);--border-strong:var(--line-strong);--shadow-sm:var(--e-1);--shadow-md:var(--e-2);--shadow-lg:var(--e-4);--primary-shadow:0 2px 4px -1px #132b4533, 0 10px 22px -8px var(--primary-glow);--status-success:var(--green-ink);--status-success-bg:var(--green-surface);--status-error:var(--red-ink);--status-error-bg:var(--red-surface);--status-warning:var(--amber-ink);--accent-cyan:var(--blue-ink);--accent-blue:var(--blue-ink);--glass-border:var(--line);--cyan:var(--blue-ink);--emerald:var(--green-ink);--rose:var(--red-ink);--violet-subtle:var(--violet-surface);--nav-height:72px;--font-ui:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--font-prose:"Source Serif 4", Georgia, "Times New Roman", serif;--font-mono:"JetBrains Mono", ui-monospace, 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srgb, var(--primary) 10%, var(--card));--a-raised:color-mix(in srgb, var(--primary) 18%, var(--card));--a-border:color-mix(in srgb, var(--primary) 35%, var(--card))}[data-accent=teal]{--a-solid:var(--teal-solid);--a-ink:var(--teal-ink);--a-surface:var(--teal-surface);--a-raised:var(--teal-raised);--a-border:var(--teal-border);--a-deep:var(--teal-deep)}[data-accent=slate]{--a-solid:var(--slate-solid);--a-ink:var(--slate-ink);--a-surface:var(--slate-surface);--a-raised:var(--slate-raised);--a-border:var(--slate-border);--a-deep:var(--slate-deep)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-page);color:var(--text-primary);font-family:var(--font-ui);font-weight:var(--fw-body);min-height:100vh;line-height:1.7;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-ui);font-weight:var(--fw-strong);letter-spacing:-.018em;color:var(--text-primary);text-wrap:balance;line-height:1.18}.card,.glass-panel{background:var(--bg-card);border:var(--edge-w) solid var(--edge);border-radius:var(--r-lg);box-shadow:var(--e-1);transition:border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);padding:28px;position:relative}.glass-panel{overflow:hidden}.card--raised{box-shadow:var(--e-3)}.card--flush{padding:0;overflow:hidden}.card--interactive{cursor:pointer}.card--interactive:hover{box-shadow:var(--e-2);border-color:var(--line-strong)}.card--interactive:active{background:var(--surface-1)}.card--railed:before{content:"";border-radius:var(--r-lg) var(--r-lg) 0 0;background:linear-gradient(90deg, var(--a-solid,var(--primary)), var(--a-deep,var(--primary-dark)));height:3px;position:absolute;inset:0 0 auto}.well{background:var(--surface-1);border:1.5px solid var(--edge);border-radius:var(--r-md);padding:18px 20px}.btn{font-family:var(--font-ui);font-weight:var(--fw-strong);border-radius:var(--r-sm);cursor:pointer;transition:transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), filter var(--dur-fast) var(--ease);border:var(--edge-w) solid var(--edge);letter-spacing:-.005em;white-space:nowrap;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:8px;padding:12px 22px;font-size:.95rem;line-height:1.2;text-decoration:none;display:inline-flex;position:relative}.btn-sm{border-radius:var(--r-xs);gap:6px;padding:8px 14px;font-size:.85rem}.btn-lg{border-radius:var(--r-md);gap:10px;padding:16px 32px;font-size:1.05rem}.btn-block{width:100%}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--e-1)}.btn-primary:hover{box-shadow:var(--e-2);background:#2b567f}.btn-primary:active{background:var(--primary-dark);box-shadow:none;transform:translate(var(--press-travel), var(--press-travel))}.btn-primary:disabled{background:var(--surface-2);color:var(--ink-400);box-shadow:none;cursor:not-allowed;transform:none}.btn-accent{background:var(--a-ink,var(--primary));color:#fff;box-shadow:var(--e-1)}.btn-accent:hover{filter:brightness(1.12);box-shadow:var(--e-2)}.btn-accent:active{filter:brightness(.94);box-shadow:none;transform:translate(var(--press-travel), var(--press-travel))}.btn-accent:disabled{background:var(--surface-2);color:var(--ink-400);box-shadow:none;filter:none;transform:none}.btn-secondary{background:var(--bg-card);color:var(--ink-900);border-color:var(--edge);box-shadow:var(--e-1)}.btn-secondary:hover{background:var(--surface-1);box-shadow:var(--e-2)}.btn-secondary:active{background:var(--surface-2);box-shadow:none;transform:translate(var(--press-travel), var(--press-travel))}.btn-secondary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}.btn-ghost{color:var(--ink-700);font-weight:var(--fw-medium);box-shadow:none;background:0 0;border-color:#0000}.btn-ghost:hover{background:var(--surface-1);color:var(--ink-900);border-color:var(--edge)}.btn-ghost:active{background:var(--surface-2)}.btn-ghost:disabled{opacity:.45;cursor:not-allowed}.icon-btn{border-radius:var(--r-sm);width:36px;height:36px;color:var(--ink-500);cursor:pointer;transition:background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);background:0 0;border:1px solid #0000;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.icon-btn:hover{background:var(--surface-1);color:var(--ink-900)}.form-input{background:var(--bg-input);border:var(--edge-w) solid var(--edge);color:var(--ink-900);border-radius:var(--r-sm);font-family:var(--font-ui);width:100%;transition:border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);box-shadow:var(--e-0);outline:none;margin-top:6px;padding:12px 14px;font-size:.98rem}.form-input::placeholder{color:var(--ink-400)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--primary) 16%, transparent)}.form-input:disabled{background:var(--surface-1);color:var(--ink-400);cursor:not-allowed}.form-input option{background:var(--bg-card)}.segmented{background:var(--surface-1);border:1px solid var(--line);border-radius:var(--r-md);gap:2px;padding:3px;display:flex}.segmented>button{cursor:pointer;border-radius:var(--r-xs);font-family:var(--font-ui);font-weight:var(--fw-medium);color:var(--ink-500);transition:background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);background:0 0;border:none;flex:1;padding:9px 14px;font-size:.88rem}.segmented>button:hover{color:var(--ink-900)}.segmented>button[aria-selected=true]{background:var(--card);color:var(--ink-900);font-weight:var(--fw-strong);box-shadow:var(--e-1)}.app-shell{--nav-height:60px;min-height:100vh;padding-top:var(--nav-height)}.topbar{height:var(--nav-height);z-index:900;background:color-mix(in srgb, var(--canvas) 86%, transparent);-webkit-backdrop-filter:blur(16px)saturate(1.6);border-bottom:var(--edge-w) solid var(--edge);position:fixed;top:0;left:0;right:0}.topbar-inner{align-items:center;gap:26px;max-width:1400px;height:100%;margin:0 auto;padding:0 24px;display:flex}.topbar-brand{cursor:pointer;background:0 0;border:none;flex-shrink:0;align-items:center;gap:10px;padding:0;display:inline-flex}.topbar-wordmark{font-size:.95rem;font-weight:var(--fw-strong);letter-spacing:-.022em;color:var(--ink-900);white-space:nowrap}.topbar-nav{align-items:center;gap:2px;min-width:0;display:flex}.topbar-item{border-radius:var(--r-sm);color:var(--ink-500);font-family:var(--font-ui);font-size:.88rem;font-weight:var(--fw-medium);white-space:nowrap;cursor:pointer;transition:color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);background:0 0;border:none;align-items:center;gap:8px;padding:8px 12px 10px;display:inline-flex;position:relative}.topbar-item:hover{background:var(--surface-1);color:var(--ink-900)}.topbar-item[aria-current=page]{color:var(--ink-900);font-weight:var(--fw-strong)}.topbar-mark{border-radius:var(--r-full);background:var(--gold-solid);pointer-events:none;height:2px;position:absolute;bottom:3px;left:12px;right:12px}.topbar-badge{border-radius:var(--r-full);background:var(--gold-solid);color:#241800;font-variant-numeric:tabular-nums;flex-shrink:0;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 5px;font-size:.66rem;font-weight:700;display:inline-flex}.topbar-right{flex-shrink:0;align-items:center;gap:15px;margin-left:auto;display:flex}.topbar-streak{align-items:baseline;gap:4px;display:inline-flex}.topbar-streak-n{letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--ink-400);font-size:1rem;font-weight:600;line-height:1}.topbar-streak-n.is-live{color:var(--gold-ink)}.topbar-streak-cap{color:var(--ink-500);font-size:.7rem}.topbar-level,.topbar-user{border-left:1px solid var(--line);align-items:center;padding-left:15px;display:inline-flex}.topbar-level{align-items:baseline;gap:5px}.topbar-level-cap{letter-spacing:.12em;color:var(--ink-400);font-size:.56rem;font-weight:700}.topbar-level-n{letter-spacing:-.03em;color:var(--ink-900);font-variant-numeric:tabular-nums;font-size:1rem;font-weight:600;line-height:1}.topbar-user{gap:7px}.topbar-avatar{background:var(--primary);color:#fff;letter-spacing:-.01em;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:.7rem;font-weight:700;display:inline-flex}.topbar-signout{border-radius:var(--r-xs);width:28px;height:28px;color:var(--ink-500);cursor:pointer;transition:background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.topbar-signout:hover{background:var(--surface-1);color:var(--ink-900)}@media (width<=1080px){.topbar-wordmark{display:none}.topbar-inner{gap:18px}}@media (width<=860px){.topbar-streak,.topbar-level{display:none}}@media (width<=720px){.topbar-inner{gap:10px;padding:0 14px}.topbar-item-label{display:none}.topbar-item{padding:9px 11px 11px}.topbar-mark{left:8px;right:8px}.topbar-badge{min-width:15px;height:15px;padding:0 4px;font-size:.6rem;position:absolute;top:2px;right:2px}}.navbar{height:var(--nav-height);background:color-mix(in srgb, var(--canvas) 78%, transparent);-webkit-backdrop-filter:blur(16px)saturate(1.6);border-bottom:1px solid var(--line);z-index:1000;justify-content:space-between;align-items:center;padding:0 28px;display:flex;position:sticky;top:0}.nav-logo{font-family:var(--font-ui);font-size:1.02rem;font-weight:var(--fw-strong);letter-spacing:-.02em;color:var(--ink-900);align-items:center;gap:10px;display:flex}.nav-mark{border-radius:var(--r-xs);background:var(--primary-gradient);color:#fff;width:30px;height:30px;box-shadow:none;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.container{max-width:1280px;margin:0 auto;padding:40px 32px}.container.container--bleed{max-width:none;padding:0}.assessment-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);cursor:pointer;transition:transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);box-shadow:var(--e-1);flex-direction:column;gap:14px;padding:26px;display:flex}.assessment-card:hover{border-color:var(--line-strong);box-shadow:var(--e-2)}.assessment-card:active{background:var(--surface-1)}.progress-track{background:var(--surface-2);border:1.5px solid var(--edge);border-radius:0;height:10px;overflow:hidden}.progress-fill{background:var(--primary-gradient);height:100%;transition:width var(--dur-slower) var(--ease);border-radius:0;position:relative;box-shadow:inset 0 1px #ffffff40}.chip{font-family:var(--font-ui);font-size:.76rem;font-weight:var(--fw-strong);white-space:nowrap;background:var(--a-raised,var(--surface-2));color:var(--a-ink,var(--ink-700));border:1.5px solid var(--edge);border-radius:0;align-items:center;gap:6px;padding:5px 11px;line-height:1.3;display:inline-flex}.chip--plain{background:var(--surface-1);color:var(--ink-700);border-color:var(--line)}.chip--outline{background:var(--card)}.chip--solid{background:var(--a-ink,var(--primary));color:#fff;border-color:#0000;box-shadow:inset 0 1px #ffffff29}.chip--sm{gap:4px;padding:3px 8px;font-size:.7rem}.eyebrow{font-family:var(--font-ui);font-size:.68rem;font-weight:var(--fw-strong);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-500);display:block}.badge{border-radius:var(--r-full);font-size:.72rem;font-weight:var(--fw-strong);letter-spacing:.06em;text-transform:uppercase;border:1px solid #0000;align-items:center;gap:5px;padding:5px 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-1px 0 #fff9;--press:none;--press-travel:1px;--emboss:0 1px 0 #ffffffd9;--card-image:linear-gradient(180deg, #ffffffd9 0%, #fff0 55%)}[data-skin=skeuomorphism] .card,[data-skin=skeuomorphism] .stat,[data-skin=skeuomorphism] .chip,[data-skin=skeuomorphism] .well,[data-skin=skeuomorphism] .activity-card-outer>div{background-image:var(--card-image)}[data-skin=skeuomorphism] .btn{text-shadow:0 1px #0000002e;background-image:linear-gradient(#ffffff47 0%,#0000000f 100%)}[data-skin=skeuomorphism] .btn:active{box-shadow:var(--e-in);background-image:linear-gradient(#0000001a 0%,#ffffff2e 100%)}[data-skin=skeuomorphism] .btn-secondary,[data-skin=skeuomorphism] .btn-ghost,[data-skin=skeuomorphism] .stat-label,[data-skin=skeuomorphism] .eyebrow,[data-skin=skeuomorphism] h1,[data-skin=skeuomorphism] h2,[data-skin=skeuomorphism] h3{text-shadow:var(--emboss)}[data-skin=neumorphism] .lesson-aside,[data-skin=glassmorphism] .lesson-aside{box-shadow:var(--e-1);border-left:none}[data-skin=neumorphism] .lesson-aside .activity-card-outer>div,[data-skin=glassmorphism] .lesson-aside .activity-card-outer>div,[data-skin=skeuomorphism] .lesson-aside .activity-card-outer>div{border-radius:var(--r-lg);background:var(--card)!important;box-shadow:var(--e-2)!important;padding-left:var(--space-5)!important;padding-right:var(--space-5)!important}[data-skin=neumorphism] .lesson-aside .activity-card-body,[data-skin=glassmorphism] .lesson-aside .activity-card-body,[data-skin=skeuomorphism] .lesson-aside .activity-card-body{padding-left:0!important;padding-right:0!important}[data-skin=neumorphism] .lesson-marker,[data-skin=glassmorphism] .lesson-marker,[data-skin=skeuomorphism] .lesson-marker{border-bottom:1px solid var(--line-strong)}[data-skin=neumorphism] .lesson-marker-n,[data-skin=glassmorphism] .lesson-marker-n,[data-skin=skeuomorphism] .lesson-marker-n{color:var(--ink-400);font-size:2.6rem}[data-skin=neumorphism] .lesson-index-cell,[data-skin=glassmorphism] .lesson-index-cell,[data-skin=skeuomorphism] .lesson-index-cell{border-radius:var(--r-xs);box-shadow:var(--e-1);border:none}.lesson-root{background:var(--bg-page)}[data-skin=glassmorphism] .lesson-root,[data-skin=glassmorphism] body{background:0 0}::view-transition-old(root){mix-blend-mode:normal;animation:none}::view-transition-new(root){mix-blend-mode:normal;z-index:1;animation:.62s cubic-bezier(.22,1,.36,1) skin-reveal}@keyframes skin-reveal{0%{clip-path:circle(0%)}to{clip-path:circle(150%)}}@media (prefers-reduced-motion:reduce){::view-transition-old(root){animation:none}::view-transition-new(root){animation:none}}.lesson-coach{min-width:0;color:var(--ink-700);white-space:nowrap;text-overflow:ellipsis;flex:240px;align-items:baseline;gap:9px;padding:0 18px;font-size:.86rem;line-height:1.4;display:flex;overflow:hidden}.lesson-coach-label{letter-spacing:.13em;text-transform:uppercase;color:var(--ink-400);flex-shrink:0;font-size:.62rem;font-weight:700}.lesson-coach-detail{color:var(--ink-500)}@media (width<=900px){.lesson-coach{display:none}}:root{--e-1s:var(--e-1);--e-ins:var(--e-in)}[data-skin=neumorphism]{--e-1s:2px 2px 4px #c8cedb, -2px -2px 4px #f7fbff;--e-ins:inset 2px 2px 4px #c4cbd8, inset -1px -1px 3px #f8fcff}[data-skin=skeuomorphism]{--e-1s:0 1px 2px #3c34263d, inset 0 1px 0 #ffffffd9;--e-ins:inset 0 1px 3px #3c342657}[data-skin=glassmorphism]{--e-1s:0 1px 4px #18274b14;--e-ins:inset 0 1px 2px #18274b24}.progress-track{box-shadow:var(--e-ins)}[data-skin=neumorphism] .progress-track,[data-skin=skeuomorphism] .progress-track,[data-skin=glassmorphism] .progress-track{background:var(--surface-1);border:none}[data-skin=neumorphism] .lesson-index-cell,[data-skin=glassmorphism] .lesson-index-cell,[data-skin=skeuomorphism] .lesson-index-cell{box-shadow:var(--e-1s)}[data-skin=neumorphism] .lesson-index-cell.is-here,[data-skin=glassmorphism] .lesson-index-cell.is-here,[data-skin=skeuomorphism] .lesson-index-cell.is-here{box-shadow:var(--e-ins)}[data-skin=claymorphism]{--canvas:#f4d9ce;--card:#fff6f1;--surface-1:#fbe8e0;--surface-2:#f3d2c6;--line:#ebc3b4;--line-strong:#dba593;--ink-900:#33191b;--ink-700:#5c3a38;--ink-500:#86635e;--ink-400:#a98a84;--ink-300:#d8b9b1;--edge:transparent;--edge-w:0px;--r-xs:16px;--r-sm:22px;--r-md:30px;--r-lg:38px;--r-xl:46px;--r-2xl:56px;--e-0:none;--e-1:0 10px 20px -6px #9e4f3e57, inset 0 6px 11px #fffffff2, inset 0 -7px 12px #c4766047;--e-2:0 16px 30px -8px #9e4f3e61, inset 0 8px 14px #fff, inset 0 -9px 15px #c4766052;--e-3:0 26px 48px -12px #9e4f3e6b, inset 0 10px 17px #fff, inset 0 -11px 18px #c4766057;--e-4:0 38px 70px -16px #9e4f3e75, inset 0 13px 22px #fff, inset 0 -13px 22px #c476605c;--e-in:inset 0 7px 14px #c4766061, inset 0 -5px 10px #ffffffe6;--e-1s:0 4px 9px -2px #9e4f3e4d, inset 0 3px 5px #fffffff2, inset 0 -3px 5px #c4766042;--e-ins:inset 0 3px 6px #c476605c;--press:none;--press-travel:1px;--page-decor:radial-gradient(40rem 30rem at 6% 0%, #ff9e7ad9, transparent 60%), radial-gradient(38rem 30rem at 94% 6%, #c496ffb3, transparent 58%), radial-gradient(46rem 34rem at 60% 100%, #ffc494b3, transparent 62%), linear-gradient(160deg, #f6dace 0%, #f0dcee 55%, #fbe3d2 100%)}[data-skin=claymorphism] .lesson-root{background:0 0}[data-skin=claymorphism] .btn{letter-spacing:-.01em;font-weight:700}[data-skin=material]{--canvas:#f1ecf9;--card:#fdfaff;--surface-1:#e9e1f5;--surface-2:#ded4ee;--line:#dbd2e8;--line-strong:#bfb4d2;--ink-900:#1c1526;--ink-700:#48415a;--ink-500:#6b6280;--ink-400:#8c83a3;--ink-300:#bfb4d2;--edge:transparent;--edge-w:0px;--r-xs:8px;--r-sm:14px;--r-md:18px;--r-lg:22px;--r-xl:28px;--r-2xl:32px;--e-0:none;--e-1:0 1px 2px #1c152647, 0 1px 3px 1px #1c15261a;--e-2:0 1px 2px #1c152647, 0 2px 6px 2px #1c15261f;--e-3:0 4px 8px 3px #1c152621, 0 1px 3px #1c152647;--e-4:0 8px 12px 6px #1c152624, 0 4px 4px #1c152647;--e-in:inset 0 1px 3px #1c152633;--e-1s:0 1px 2px #1c152638;--e-ins:inset 0 1px 2px #1c15262e;--press:none;--press-travel:0px;--primary:#6750a4;--primary-ink:#4f378b;--primary-dark:#4f378b;--primary-gradient:none}[data-skin=material] .btn{border-radius:999px;padding-inline:26px}[data-skin=material] .btn-primary{background:var(--primary)}[data-skin=material] .chip{border:1px solid var(--line-strong);background:0 0;border-radius:8px}[data-skin=swiss]{--canvas:#fff;--card:#fff;--surface-1:#f4f4f4;--surface-2:#e8e8e8;--line:#d6d6d6;--line-strong:#111;--ink-900:#111;--ink-700:#3a3a3a;--ink-500:#6a6a6a;--ink-400:#949494;--ink-300:#d6d6d6;--edge:#111;--edge-w:1px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#e1000f;--primary-ink:#b8000c;--primary-dark:#b8000c;--primary-gradient:none;--brand:#e1000f}[data-skin=swiss] .card,[data-skin=swiss] .stat-strip{border-width:0;border-top:2px solid var(--ink-900)}[data-skin=swiss] .btn-primary{background:var(--primary);border-color:var(--primary)}[data-skin=swiss] .chip{border:1px solid var(--ink-900);background:0 0}[data-skin=swiss] h1,[data-skin=swiss] h2{letter-spacing:-.045em}[data-skin=editorial]{--canvas:#fbf7ef;--card:transparent;--surface-1:#f3ede1;--surface-2:#e7decd;--line:#d8cdb8;--line-strong:#a8977a;--ink-900:#1b1710;--ink-700:#423a2c;--ink-500:#6b6050;--ink-400:#8f8371;--ink-300:#c4b79e;--edge:transparent;--edge-w:0px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#7b2016;--primary-ink:#5e1810;--primary-dark:#5e1810;--primary-gradient:none;--brand:#7b2016}html .skin-menu.card{background:var(--canvas);border:1px solid var(--line-strong);border-radius:var(--r-lg)}[data-skin=editorial] .card,[data-skin=editorial] .stat-strip,[data-skin=editorial] .well{border:none;border-top:1px solid var(--ink-900);background:0 0;padding-top:16px}[data-skin=editorial] .stat+.stat{border-left:1px solid var(--line)}[data-skin=editorial] .lesson-aside{border-left:1px solid var(--ink-900);background:0 0}[data-skin=editorial] .chip{border:1px solid var(--line-strong);background:0 0}[data-skin=editorial] body,[data-skin=editorial] .btn,[data-skin=editorial] h1,[data-skin=editorial] h2,[data-skin=editorial] h3,[data-skin=editorial] .stat-value,[data-skin=editorial] .chip{font-family:var(--font-prose)}[data-skin=editorial] .btn{letter-spacing:0;font-weight:600}[data-skin=editorial] .btn-primary{background:var(--primary)}[data-skin=terminal]{--canvas:#07090a;--card:#0d1211;--surface-1:#121a18;--surface-2:#1b2522;--line:#24322e;--line-strong:#3b524b;--ink-900:#c9f7d8;--ink-700:#7fd9a0;--ink-500:#4e9e74;--ink-400:#3b7a5a;--ink-300:#2a5541;--edge:#2c4a3e;--edge-w:1px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:0 0 0 1px #1d2a26;--e-2:0 0 12px -2px #50dc9638;--e-3:0 0 22px -2px #50dc964d;--e-4:0 0 36px -4px #50dc965c;--e-in:inset 0 0 0 1px #24322e;--e-1s:0 0 0 1px #1d2a26;--e-ins:inset 0 0 0 1px #24322e;--press:none;--press-travel:1px;--primary:#1e5c3e;--primary-ink:#7fd9a0;--primary-dark:#16452e;--primary-gradient:none;--brand:#46d98a;--brand-ink:#46d98a;--page-decor:none}[data-skin=terminal] body,[data-skin=terminal] .btn,[data-skin=terminal] .prose,[data-skin=terminal] .prose-lg,[data-skin=terminal] h1,[data-skin=terminal] h2,[data-skin=terminal] h3,[data-skin=terminal] h4{font-family:var(--font-mono);letter-spacing:0}[data-skin=terminal] .prose,[data-skin=terminal] .prose-lg{font-size:.95rem;line-height:1.75}[data-skin=terminal] h1,[data-skin=terminal] h2,[data-skin=terminal] .stat-value,[data-skin=terminal] .lesson-marker-n{text-shadow:0 0 12px #46d98a73}[data-skin=terminal] .lesson-block>div{background:var(--surface-1)!important;border-color:var(--line)!important}[data-skin=terminal] .chip{background:var(--surface-2);border:1px solid var(--line-strong);color:var(--ink-700)}[data-skin=terminal] .btn-primary{color:#cffce2}[data-skin=terminal] body:after{content:"";z-index:9998;pointer-events:none;background:repeating-linear-gradient(#00000038 0 1px,#0000 1px 3px);position:fixed;inset:0}[data-skin=aurora]{--canvas:#080a16;--card:#181c349e;--surface-1:#2228488c;--surface-2:#30376099;--line:#96aaff33;--line-strong:#a0b4ff61;--ink-900:#eef1ff;--ink-700:#bfc6ee;--ink-500:#8e96c4;--ink-400:#6e76a2;--ink-300:#4a5178;--edge:#a0b4ff47;--edge-w:1px;--r-xs:8px;--r-sm:12px;--r-md:16px;--r-lg:20px;--r-xl:26px;--r-2xl:32px;--e-0:none;--e-1:0 4px 18px #00000073, inset 0 1px 0 #becdff38;--e-2:0 10px 30px #00000080, inset 0 1px 0 #becdff47;--e-3:0 18px 48px #0000008c, 0 0 34px -12px #7882ff99, inset 0 1px 0 #becdff52;--e-4:0 28px 70px #0009, 0 0 52px -14px #8c78ffa6, inset 0 1px 0 #c8d2ff5c;--e-in:inset 0 2px 8px #00000080;--e-1s:0 2px 8px #0006, inset 0 1px 0 #becdff2e;--e-ins:inset 0 1px 4px #00000073;--press:none;--press-travel:0px;--card-blur:blur(20px) saturate(1.5);--primary:#5b49e0;--primary-ink:#b9aeff;--primary-dark:#4132b4;--primary-gradient:none;--brand:#6fe3ff;--brand-ink:#6fe3ff;--page-decor:radial-gradient(48rem 34rem at 10% 0%, #5846e6a6, transparent 62%), radial-gradient(42rem 32rem at 92% 10%, #e242a580, transparent 60%), radial-gradient(54rem 40rem at 58% 100%, #28c8dc73, transparent 62%), linear-gradient(165deg, #080a16 0%, #10132a 55%, #0a1220 100%)}[data-skin=aurora] .lesson-root{background:0 0}[data-skin=aurora] .card,[data-skin=aurora] .stat-strip,[data-skin=aurora] .well,[data-skin=aurora] .topbar,[data-skin=aurora] .lesson-aside,[data-skin=aurora] .activity-card-outer>div{-webkit-backdrop-filter:var(--card-blur)}[data-skin=aurora] .lesson-block>div{background:var(--surface-1)!important;border-color:var(--line)!important}[data-skin=aurora] .chip{background:var(--surface-2);border:1px solid var(--line-strong);color:var(--ink-700)}[data-skin=aurora] h1,[data-skin=aurora] h2,[data-skin=aurora] .lesson-marker-n{text-shadow:0 0 26px #8c96ff66}[data-skin=material] .lesson-aside .activity-card-outer>div,[data-skin=swiss] .lesson-aside .activity-card-outer>div,[data-skin=editorial] .lesson-aside .activity-card-outer>div,[data-skin=terminal] .lesson-aside .activity-card-outer>div,[data-skin=aurora] .lesson-aside .activity-card-outer>div{padding-left:var(--space-5)!important;padding-right:var(--space-5)!important}[data-skin=material] .lesson-aside .activity-card-body,[data-skin=swiss] .lesson-aside .activity-card-body,[data-skin=editorial] .lesson-aside .activity-card-body,[data-skin=terminal] .lesson-aside .activity-card-body,[data-skin=aurora] .lesson-aside .activity-card-body{padding-left:0!important;padding-right:0!important}[data-skin=material] .lesson-marker,[data-skin=swiss] .lesson-marker,[data-skin=editorial] .lesson-marker,[data-skin=terminal] .lesson-marker,[data-skin=aurora] .lesson-marker{border-bottom:1px solid var(--line-strong)}[data-skin=material] .lesson-marker-n,[data-skin=swiss] .lesson-marker-n,[data-skin=editorial] .lesson-marker-n,[data-skin=aurora] .lesson-marker-n{color:var(--ink-400);font-size:2.6rem}[data-skin=material] .lesson-index-cell,[data-skin=aurora] .lesson-index-cell{box-shadow:var(--e-1s);border:none}[data-skin=material] .lesson-index-cell.is-here,[data-skin=aurora] .lesson-index-cell.is-here{box-shadow:var(--e-ins)}[data-skin=editorial] .lesson-index-cell,[data-skin=swiss] .lesson-index-cell{border:1px solid var(--ink-900);background:0 0}[data-skin=editorial] .lesson-index-cell.is-here,[data-skin=swiss] .lesson-index-cell.is-here{background:var(--ink-900);color:var(--canvas)}[data-skin=material] .lesson-aside,[data-skin=aurora] .lesson-aside,[data-skin=terminal] .lesson-aside{border-left:1px solid var(--line)}[data-skin=swiss] .lesson-aside{border-left:1px solid var(--ink-900)}[data-skin=terminal] .activity-prompt,[data-skin=terminal] .activity-instruction{letter-spacing:0;font-family:var(--font-mono)!important;font-size:1rem!important}[data-skin=bauhaus]{--canvas:#f2efe6;--card:#fff;--surface-1:#eae5d6;--surface-2:#dcd5c0;--line:#1a1a1a;--line-strong:#1a1a1a;--ink-900:#1a1a1a;--ink-700:#3a3a3a;--ink-500:#6a665c;--ink-400:#8f8a7d;--ink-300:#c4beac;--edge:#1a1a1a;--edge-w:2.5px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:2px;--primary:#d62828;--primary-ink:#a81e1e;--primary-dark:#a81e1e;--primary-gradient:none;--brand:#f5b700;--brand-ink:#7a5a00}[data-skin=bauhaus] .btn-primary{background:var(--primary);color:#fff}[data-skin=bauhaus] .btn-accent{color:#1a1a1a;background:#f5b700}[data-skin=bauhaus] .chip{color:#1a1a1a;background:#f5b700;border:2px solid #1a1a1a}[data-skin=bauhaus] .lesson-index-cell.is-here{color:#fff;background:#1d4ed8}[data-skin=bauhaus] .lesson-index-cell.is-done{color:#1a1a1a;background:#f5b700}[data-skin=bauhaus] .lesson-marker-n{color:#d62828}[data-skin=bauhaus] .lesson-aside{background:#fff;border-left:2.5px solid #1a1a1a}[data-skin=bauhaus] .progress-fill{background:#1d4ed8}[data-skin=bauhaus] h1,[data-skin=bauhaus] h2{letter-spacing:-.04em}[data-skin=blueprint]{--canvas:#0b2e58;--card:transparent;--surface-1:#ffffff0d;--surface-2:#ffffff1a;--line:#bee0ff52;--line-strong:#d2ecff99;--ink-900:#eaf4ff;--ink-700:#bcd9f5;--ink-500:#8fb6dc;--ink-400:#6e97c1;--ink-300:#4e7396;--edge:#c8e6ff8c;--edge-w:1px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#ffffff1f;--primary-ink:#eaf4ff;--primary-dark:#fff3;--primary-gradient:none;--brand:#7fd4ff;--brand-ink:#7fd4ff;--page-decor:repeating-linear-gradient(0deg, #a0cdf529 0 1px, transparent 1px 40px), repeating-linear-gradient(90deg, #a0cdf529 0 1px, transparent 1px 40px), repeating-linear-gradient(0deg, #a0cdf512 0 1px, transparent 1px 8px), repeating-linear-gradient(90deg, #a0cdf512 0 1px, transparent 1px 8px), linear-gradient(170deg, #0c3260 0%, #0a2a50 60%, #08223f 100%)}[data-skin=blueprint] .lesson-root{background:0 0}[data-skin=blueprint] .card,[data-skin=blueprint] .stat-strip,[data-skin=blueprint] .well,[data-skin=blueprint] .lesson-aside,[data-skin=blueprint] .activity-card-outer>div{border:1px solid var(--edge)!important;background:0 0!important}[data-skin=blueprint] .lesson-block>div{border-color:var(--edge)!important;background:0 0!important}[data-skin=blueprint] .chip{border:1px solid var(--edge);color:var(--ink-700);background:0 0}[data-skin=blueprint] .btn{border:1px solid var(--edge);color:var(--ink-900);background:0 0}[data-skin=blueprint] .btn-primary{background:#ffffff1f}[data-skin=blueprint] .eyebrow,[data-skin=blueprint] .stat-label,[data-skin=blueprint] .chip{font-family:var(--font-mono);letter-spacing:.08em}[data-skin=blueprint] .lesson-index-cell.is-here{color:#eaf4ff;background:#7fd4ff38}[data-skin=paper]{--canvas:#fbfaf4;--card:#fffef9;--surface-1:#f4f2e8;--surface-2:#e9e5d6;--line:#d8d3c0;--line-strong:#a9a28b;--ink-900:#2b2a26;--ink-700:#4e4c44;--ink-500:#757166;--ink-400:#9a9585;--ink-300:#c7c1ac;--edge:#6e6a5c;--edge-w:1.5px;--r-xs:2px;--r-sm:3px;--r-md:4px;--r-lg:5px;--r-xl:6px;--r-2xl:8px;--e-0:none;--e-1:1px 1px 0 #6e6a5c47;--e-2:2px 2px 0 #6e6a5c4d;--e-3:3px 3px 0 #6e6a5c52;--e-4:5px 5px 0 #6e6a5c57;--e-in:none;--e-1s:1px 1px 0 #6e6a5c3d;--e-ins:none;--press:none;--press-travel:1px;--primary:#3f3b33;--primary-ink:#2b2a26;--primary-dark:#2b2a26;--primary-gradient:none;--brand:#f2c744;--brand-ink:#7a5e00;--page-decor:linear-gradient(90deg, transparent 0 78px, #d67a7a57 78px 79px, transparent 79px), repeating-linear-gradient(180deg, transparent 0 27px, #96aabe38 27px 28px), linear-gradient(180deg, #fcfbf5 0%, #f8f6ec 100%)}[data-skin=paper] .lesson-root{background:0 0}[data-skin=paper] .chip{background:var(--surface-1);border:1.5px solid var(--line-strong)}[data-skin=paper] .btn-primary{color:#fffef9}[data-skin=paper] .lesson-index-cell.is-here{background:var(--ink-900);color:#fffef9}[data-skin=paper] .lesson-block>div{background:#f2c74421!important}[data-skin=aero]{--canvas:#c9e4f5;--card:#f2faff;--surface-1:#dceefa;--surface-2:#c2def0;--line:#9fc6df;--line-strong:#6fa3c4;--ink-900:#0b2333;--ink-700:#234a63;--ink-500:#4a7590;--ink-400:#6f97af;--ink-300:#a6c6da;--edge:#7fb2d0;--edge-w:1px;--r-xs:8px;--r-sm:12px;--r-md:16px;--r-lg:20px;--r-xl:26px;--r-2xl:32px;--e-0:none;--e-1:0 2px 5px #14466433, inset 0 1px 0 #fffffff2;--e-2:0 5px 14px #1446643d, inset 0 1px 0 #fff;--e-3:0 10px 26px #14466447, inset 0 1px 0 #fff;--e-4:0 18px 44px #14466452, inset 0 1px 0 #fff;--e-in:inset 0 2px 6px #1446644d;--e-1s:0 1px 3px #14466433, inset 0 1px 0 #ffffffe6;--e-ins:inset 0 1px 4px #14466442;--press:none;--press-travel:1px;--primary:#1c7fc4;--primary-ink:#135e93;--primary-dark:#135e93;--primary-gradient:none;--brand:#23a7e0;--brand-ink:#0e6e99;--card-image:linear-gradient(180deg, #ffffffeb 0%, #ffffff8c 49%, #bee0f459 50%, #ffffff47 100%);--page-decor:radial-gradient(50rem 30rem at 50% -6%, #ffffffe6, transparent 62%), linear-gradient(180deg, #d6ecf8 0%, #b5d8ee 55%, #9fcbe7 100%)}[data-skin=aero] .lesson-root{background:0 0}[data-skin=aero] .card,[data-skin=aero] .stat-strip,[data-skin=aero] .chip,[data-skin=aero] .well,[data-skin=aero] .btn,[data-skin=aero] .activity-card-outer>div{background-image:var(--card-image)}[data-skin=aero] .btn-primary{color:#fff;text-shadow:0 1px 1px #00284680}[data-skin=aero] .lesson-index-cell.is-here{background:var(--primary);color:#fff}[data-skin=contrast]{--canvas:#fff;--card:#fff;--surface-1:#fff;--surface-2:#ededed;--line:#000;--line-strong:#000;--ink-900:#000;--ink-700:#000;--ink-500:#000;--ink-400:#000;--ink-300:#000;--edge:#000;--edge-w:3px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#00c;--primary-ink:#00c;--primary-dark:#009;--primary-gradient:none;--brand:#00c;--brand-ink:#00c}[data-skin=contrast] .chip{color:#000;background:#fff;border:2px solid #000}[data-skin=contrast] .lesson-block>div{background:#fff!important;border-color:#000!important}[data-skin=contrast] .btn-primary{background:var(--primary);color:#fff}[data-skin=contrast] .lesson-index-cell.is-here{color:#fff;background:#000}[data-skin=contrast] .lesson-index-cell.is-done{color:#000;background:#ededed}[data-skin=contrast] :focus-visible{outline-offset:2px!important;outline:4px solid #00c!important}[data-skin=contrast] .prose,[data-skin=contrast] .prose-lg{color:#000}[data-skin=bauhaus] .lesson-aside .activity-card-outer>div,[data-skin=paper] .lesson-aside .activity-card-outer>div,[data-skin=aero] .lesson-aside .activity-card-outer>div,[data-skin=contrast] .lesson-aside .activity-card-outer>div{border-radius:var(--r-lg);background:var(--card)!important;box-shadow:var(--e-2)!important;padding-left:var(--space-5)!important;padding-right:var(--space-5)!important}[data-skin=bauhaus] .lesson-aside .activity-card-body,[data-skin=blueprint] .lesson-aside .activity-card-body,[data-skin=paper] .lesson-aside .activity-card-body,[data-skin=aero] .lesson-aside .activity-card-body,[data-skin=contrast] .lesson-aside .activity-card-body{padding-left:0!important;padding-right:0!important}[data-skin=blueprint] .lesson-aside .activity-card-outer>div{padding-left:var(--space-5)!important;padding-right:var(--space-5)!important}[data-skin=paper] .lesson-marker,[data-skin=aero] .lesson-marker,[data-skin=blueprint] .lesson-marker{border-bottom:1px solid var(--line-strong)}[data-skin=paper] .lesson-marker-n,[data-skin=aero] .lesson-marker-n,[data-skin=blueprint] .lesson-marker-n{color:var(--ink-400);font-size:2.6rem}[data-skin=paper] .lesson-aside,[data-skin=aero] .lesson-aside{border-left:1.5px solid var(--line-strong);background:0 0}[data-skin=contrast] .lesson-aside{background:#fff;border-left:3px solid #000}[data-skin=bento]{--canvas:#eceef1;--card:#fff;--surface-1:#f5f6f8;--surface-2:#e6e9ed;--line:#e4e7ec;--line-strong:#c8cdd6;--ink-900:#12151a;--ink-700:#384250;--ink-500:#667085;--ink-400:#98a2b3;--ink-300:#c6ccd6;--edge:transparent;--edge-w:0px;--r-xs:10px;--r-sm:14px;--r-md:18px;--r-lg:22px;--r-xl:26px;--r-2xl:32px;--e-0:none;--e-1:0 1px 2px #1018280d, 0 1px 3px #1018280d;--e-2:0 2px 4px -2px #1018280f, 0 4px 10px -2px #10182814;--e-3:0 4px 8px -4px #1018280f, 0 12px 22px -4px #1018281a;--e-4:0 8px 16px -6px #10182814, 0 24px 48px -8px #10182824;--e-in:inset 0 1px 3px #10182812;--e-1s:0 1px 2px #1018280d;--e-ins:inset 0 1px 2px #1018280f;--press:none;--press-travel:0px;--primary:#3457d5;--primary-ink:#2743a8;--primary-dark:#2743a8;--primary-gradient:none;--brand:#c2663b;--brand-ink:#97482440}[data-skin=bento] .lesson-split{gap:12px}[data-skin=bento] .lesson-left,[data-skin=bento] .lesson-aside{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--e-1);border-left:none}[data-skin=bento] .lesson-split{padding-bottom:12px}[data-skin=bento] .lesson-dock{background:0 0;border-top:none}[data-skin=bento] .chip{background:var(--surface-1);color:var(--ink-700);border:none;border-radius:999px}[data-skin=bento] .lesson-index-cell{border-radius:var(--r-xs)}[data-skin=bento] .lesson-index-cell.is-here{background:var(--primary);color:#fff}[data-skin=bento] .lesson-marker{border-bottom:none}[data-skin=bento] .lesson-marker-n{color:var(--ink-300);font-size:2.6rem}[data-skin=minimal]{--canvas:#fff;--card:#fff;--surface-1:#fafafa;--surface-2:#f4f4f5;--line:#ededed;--line-strong:#dcdcdc;--ink-900:#171717;--ink-700:#404040;--ink-500:#737373;--ink-400:#a3a3a3;--ink-300:#d4d4d4;--edge:#ededed;--edge-w:1px;--r-xs:2px;--r-sm:3px;--r-md:4px;--r-lg:6px;--r-xl:8px;--r-2xl:10px;--e-0:none;--e-1:none;--e-2:0 1px 2px #0000000a;--e-3:0 1px 3px #0000000d;--e-4:0 2px 8px #0000000f;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#171717;--primary-ink:#000;--primary-dark:#000;--primary-gradient:none;--brand:#8a6116;--brand-ink:#6b4a10}[data-skin=minimal] .lesson-aside{border-left:1px solid var(--line);background:0 0}[data-skin=minimal] .chip{border:1px solid var(--line);color:var(--ink-500);background:0 0}[data-skin=minimal] .lesson-index-cell{color:var(--ink-400);background:0 0}[data-skin=minimal] .lesson-index-cell.is-here{background:var(--ink-900);color:#fff}[data-skin=minimal] .lesson-index-cell.is-done{background:var(--surface-2);color:var(--ink-700)}[data-skin=minimal] .lesson-marker{border-bottom:1px solid var(--line)}[data-skin=minimal] .lesson-marker-n{color:var(--ink-300);font-size:2.2rem}[data-skin=minimal] .card{border:1px solid var(--line);box-shadow:none}.act-panel{background:var(--card);border:var(--edge-w) solid var(--edge);border-radius:var(--r-lg);box-shadow:var(--e-1);padding:var(--space-5) var(--space-5) var(--space-4);min-width:0}.act-panel-eyebrow{font-size:var(--fs-100);font-weight:var(--fw-strong);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-500);margin-bottom:var(--space-3);display:block}.act-panel-gesture{font-family:var(--font-prose);font-size:var(--fs-500);color:var(--ink-900);text-wrap:pretty;line-height:1.4}.act-panel-when{font-size:var(--fs-200);color:var(--ink-500);margin-top:var(--space-2);line-height:1.6}.act-panel-list{margin-top:var(--space-5);border-top:1px solid var(--line)}.act-row{border-bottom:1px solid var(--line);font-size:var(--fs-200);align-items:baseline;gap:10px;min-width:0;padding:8px 0;display:flex}.act-row-n{font-family:var(--font-mono);color:var(--ink-400);font-variant-numeric:tabular-nums;flex-shrink:0;font-size:.7rem;font-weight:600}.act-row-label{min-width:0;color:var(--ink-400);text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.act-row.is-met .act-row-label{color:var(--ink-900)}.act-row.is-here .act-row-label{font-weight:var(--fw-strong)}.act-row-state{font-size:.7rem;font-weight:var(--fw-medium);color:var(--ink-500);flex-shrink:0;align-items:center;display:inline-flex}.act-row.is-here .act-row-state{color:var(--primary-ink);font-weight:var(--fw-strong)}.act-panel-foot{margin-top:var(--space-3);font-size:var(--fs-100);letter-spacing:.06em;text-transform:uppercase;font-weight:var(--fw-strong);color:var(--ink-400);font-variant-numeric:tabular-nums}[data-skin=deco]{--canvas:#0d211c;--card:#123029;--surface-1:#16382f;--surface-2:#1d453a;--line:#c9a2274d;--line-strong:#c9a2279e;--ink-900:#f4eedd;--ink-700:#d8cfb4;--ink-500:#a99f80;--ink-400:#8a8167;--ink-300:#5f5a47;--edge:#c9a2278c;--edge-w:1px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:none;--e-2:none;--e-3:none;--e-4:none;--e-in:none;--e-1s:none;--e-ins:none;--press:none;--press-travel:0px;--primary:#c9a227;--primary-ink:#f0dfa0;--primary-dark:#a9871b;--primary-gradient:none;--brand:#c9a227;--brand-ink:#e4ce84}[data-skin=deco] .lesson-block>div{background:var(--surface-1)!important;border-color:var(--line)!important}[data-skin=deco] .btn-primary{background:var(--primary);color:#10241f;font-weight:700}[data-skin=deco] .chip{border:1px solid var(--line-strong);color:var(--ink-700);letter-spacing:.12em;text-transform:uppercase;background:0 0;font-size:.68rem}[data-skin=deco] .eyebrow,[data-skin=deco] .stat-label,[data-skin=deco] .act-panel-eyebrow{letter-spacing:.2em}[data-skin=deco] h1,[data-skin=deco] h2{font-family:var(--font-prose);letter-spacing:.01em}[data-skin=deco] .lesson-marker-n{color:var(--primary)}[data-skin=deco] .lesson-index-cell.is-here{background:var(--primary);color:#10241f}[data-skin=deco] .lesson-index-cell.is-done{color:var(--ink-900);background:#c9a22738}[data-skin=deco] .lesson-aside{background:var(--card);border-left:1px solid var(--line-strong)}[data-skin=carbon]{--canvas:#f4f4f4;--card:#fff;--surface-1:#f4f4f4;--surface-2:#e0e0e0;--line:#e0e0e0;--line-strong:#8d8d8d;--ink-900:#161616;--ink-700:#393939;--ink-500:#6f6f6f;--ink-400:#8d8d8d;--ink-300:#c6c6c6;--edge:#e0e0e0;--edge-w:1px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:0 1px 2px #0000000f;--e-2:0 2px 6px #0000001a;--e-3:0 4px 12px #00000024;--e-4:0 8px 24px #0000002e;--e-in:inset 0 1px 2px #0000001a;--e-1s:none;--e-ins:inset 0 1px 2px #0000001a;--press:none;--press-travel:0px;--primary:#0f62fe;--primary-ink:#0043ce;--primary-dark:#0043ce;--primary-gradient:none;--brand:#0f62fe;--brand-ink:#0043ce}[data-skin=carbon] .btn{border-radius:0;padding:13px 20px;font-weight:400}[data-skin=carbon] .btn-primary{background:var(--primary);border-color:var(--primary)}[data-skin=carbon] .chip{background:var(--surface-2);color:var(--ink-700);border:none;border-radius:0}[data-skin=carbon] .lesson-index-cell.is-here{background:var(--primary);color:#fff}[data-skin=carbon] .lesson-aside{background:var(--surface-1);border-left:1px solid var(--line-strong)}[data-skin=carbon] h1,[data-skin=carbon] h2{letter-spacing:0;font-weight:400}[data-skin=sage]{--canvas:#e8e6da;--card:#f4f2e9;--surface-1:#e1dfd1;--surface-2:#d4d2c1;--line:#cbc8b6;--line-strong:#a8a48e;--ink-900:#262b24;--ink-700:#454b41;--ink-500:#6c7165;--ink-400:#8c9083;--ink-300:#b6b8a9;--edge:#c0bda9;--edge-w:1px;--r-xs:6px;--r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:22px;--r-2xl:28px;--e-0:none;--e-1:0 1px 3px #3c3e3012;--e-2:0 3px 10px #3c3e3017;--e-3:0 8px 22px #3c3e301c;--e-4:0 16px 40px #3c3e3024;--e-in:inset 0 1px 3px #3c3e301a;--e-1s:0 1px 2px #3c3e3012;--e-ins:inset 0 1px 2px #3c3e301a;--press:none;--press-travel:0px;--primary:#6e7f5e;--primary-ink:#55654a;--primary-dark:#55654a;--primary-gradient:none;--brand:#a8664b;--brand-ink:#7e4832}[data-skin=sage] .chip{background:var(--surface-1);border:1px solid var(--line);color:var(--ink-700)}[data-skin=sage] .lesson-index-cell.is-here{background:var(--primary);color:#f4f2e9}[data-skin=sage] .lesson-aside{background:var(--surface-1);border-left:1px solid var(--line)}[data-skin=sage] .lesson-marker-n{color:var(--ink-400);font-size:2.6rem}[data-skin=sage] .lesson-marker{border-bottom:1px solid var(--line)}[data-skin=riso]{--canvas:#f4f0e4;--card:#fbf8ef;--surface-1:#f0eada;--surface-2:#e4dcc7;--line:#c9bfa6;--line-strong:#0e4fa8;--ink-900:#16233a;--ink-700:#35435c;--ink-500:#6a7386;--ink-400:#8c93a2;--ink-300:#b9bdc7;--edge:#0e4fa8;--edge-w:1.5px;--r-xs:0px;--r-sm:0px;--r-md:0px;--r-lg:0px;--r-xl:0px;--r-2xl:0px;--e-0:none;--e-1:2px 2px 0 #ff4a6e9e;--e-2:3px 3px 0 #ff4a6ea8;--e-3:5px 5px 0 #ff4a6eb3;--e-4:7px 7px 0 #ff4a6eb8;--e-in:none;--e-1s:2px 2px 0 #ff4a6e8c;--e-ins:none;--press:none;--press-travel:2px;--primary:#0e4fa8;--primary-ink:#0a3d82;--primary-dark:#0a3d82;--primary-gradient:none;--brand:#ff4a6e;--brand-ink:#c42b4c;--page-decor:repeating-linear-gradient(45deg, #786e5a09 0 2px, transparent 2px 4px), linear-gradient(180deg, #f6f2e7 0%, #f1ecde 100%)}[data-skin=riso] .lesson-root{background:0 0}[data-skin=riso] .btn-primary{background:var(--primary);color:#fbf8ef}[data-skin=riso] .btn-accent{background:var(--brand);color:#fbf8ef}[data-skin=riso] .chip{border:1.5px solid var(--primary);color:var(--primary-ink);background:#ff4a6e29}[data-skin=riso] .lesson-index-cell.is-here{background:var(--primary);color:#fbf8ef}[data-skin=riso] .lesson-index-cell.is-done{color:var(--ink-900);background:#ff4a6e6b}[data-skin=riso] .lesson-marker-n{color:var(--brand)}[data-skin=riso] .lesson-aside{border-left:1.5px solid var(--primary);background:0 0}[data-skin=riso] .lesson-block>div{border-color:var(--primary)!important;background:#ff4a6e1a!important}[data-skin=midnight]{--canvas:#0f1218;--card:#171b24;--surface-1:#1d222d;--surface-2:#262c39;--line:#2a313e;--line-strong:#3d4655;--ink-900:#e6eaf2;--ink-700:#b4bccb;--ink-500:#838c9e;--ink-400:#656e80;--ink-300:#454d5c;--edge:#2e3644;--edge-w:1px;--r-xs:4px;--r-sm:6px;--r-md:10px;--r-lg:12px;--r-xl:16px;--r-2xl:20px;--e-0:none;--e-1:0 1px 2px #00000080;--e-2:0 3px 10px #0000008c;--e-3:0 8px 24px #0009;--e-4:0 18px 44px #000000a6;--e-in:inset 0 1px 3px #0000008c;--e-1s:0 1px 2px #00000073;--e-ins:inset 0 1px 2px #00000080;--press:none;--press-travel:0px;--primary:#4c6fe0;--primary-ink:#a9bcff;--primary-dark:#3a57bc;--primary-gradient:none;--brand:#e0b44c;--brand-ink:#e7c579}[data-skin=midnight] .lesson-block>div{background:var(--surface-1)!important;border-color:var(--line)!important}[data-skin=midnight] .chip{background:var(--surface-2);border:1px solid var(--line-strong);color:var(--ink-700)}[data-skin=midnight] .btn-primary{color:#f2f5ff}[data-skin=midnight] .lesson-index-cell.is-here{background:var(--primary);color:#f2f5ff}[data-skin=midnight] .lesson-aside{background:var(--surface-1);border-left:1px solid var(--line)}[data-skin=deco] .lesson-aside .activity-card-outer>div,[data-skin=carbon] .lesson-aside .activity-card-outer>div,[data-skin=sage] .lesson-aside .activity-card-outer>div,[data-skin=riso] .lesson-aside .activity-card-outer>div,[data-skin=midnight] .lesson-aside .activity-card-outer>div{border-radius:var(--r-lg);background:var(--card)!important;box-shadow:var(--e-2)!important;padding-left:var(--space-5)!important;padding-right:var(--space-5)!important}[data-skin=deco] .lesson-aside .activity-card-body,[data-skin=carbon] .lesson-aside .activity-card-body,[data-skin=sage] .lesson-aside .activity-card-body,[data-skin=riso] .lesson-aside .activity-card-body,[data-skin=midnight] .lesson-aside .activity-card-body{padding-left:0!important;padding-right:0!important}[data-skin=carbon] .lesson-marker,[data-skin=midnight] .lesson-marker,[data-skin=riso] .lesson-marker{border-bottom:1px solid var(--line-strong)}[data-skin=carbon] .lesson-marker-n,[data-skin=midnight] .lesson-marker-n{color:var(--ink-400);font-size:2.6rem}.lp-page{max-width:880px;margin:0 auto;padding:40px 24px 120px}.lp-head{margin-bottom:var(--space-5);flex-wrap:wrap;align-items:flex-start;gap:24px;display:flex}.lp-title{font-size:var(--fs-800);font-weight:var(--fw-display);letter-spacing:-.035em;color:var(--ink-900);text-wrap:balance;margin:6px 0 8px;line-height:1.08}.lp-sub{font-size:var(--fs-300);color:var(--ink-500);line-height:1.6}.track-toggle{background:var(--surface-1);border:1px solid var(--line);border-radius:var(--r-md);flex-shrink:0;gap:3px;padding:3px;display:inline-flex}.track-toggle__opt{appearance:none;cursor:pointer;font:inherit;font-size:var(--fs-200);letter-spacing:-.01em;color:var(--ink-500);border-radius:var(--r-sm);white-space:nowrap;transition:color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);background:0 0;border:0;padding:7px 15px;font-weight:600}.track-toggle__opt:hover{color:var(--ink-900)}.track-toggle__opt.is-on{background:var(--bg-card);color:var(--ink-900);box-shadow:var(--e-1)}.lp-next{margin:var(--space-5) 0 var(--space-7);padding:var(--space-5) var(--space-5) var(--space-4);background:var(--card);border:var(--edge-w) solid var(--edge);border-left:5px solid var(--a-solid,var(--primary));border-radius:var(--r-lg);box-shadow:var(--e-2)}.lp-next-head{flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:10px;display:flex}.lp-next-eyebrow{font-size:var(--fs-100);letter-spacing:.13em;text-transform:uppercase;color:var(--a-ink,var(--primary-ink));font-weight:700}.lp-next-course{font-size:var(--fs-200);color:var(--ink-500);align-items:center;gap:6px;display:inline-flex}.lp-next-title{font-size:var(--fs-700);font-weight:var(--fw-display);letter-spacing:-.03em;color:var(--ink-900);text-wrap:balance;align-items:baseline;gap:14px;margin-bottom:10px;line-height:1.15;display:flex}.lp-next-n{font-family:var(--font-mono);color:var(--a-solid,var(--primary));font-variant-numeric:tabular-nums;letter-spacing:-.04em;flex-shrink:0;font-size:1.5rem;font-weight:700}.lp-next-desc{font-family:var(--font-prose);font-size:var(--fs-400);color:var(--ink-700);max-width:62ch;margin-bottom:var(--space-5);line-height:1.65}.lp-next-foot{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.lp-next-meta{font-size:var(--fs-200);color:var(--ink-500)}.lp-course{margin-bottom:var(--space-6)}.lp-course-head{border-bottom:var(--edge-w) solid var(--edge);align-items:baseline;gap:12px;margin-bottom:4px;padding-bottom:10px;display:flex}.lp-course-dot{border:2px solid;border-radius:50%;flex-shrink:0;width:13px;height:13px;margin-left:-1px;transform:translateY(1px)}.lp-course-name{font-size:var(--fs-500);font-weight:var(--fw-strong);letter-spacing:-.02em;color:var(--ink-900)}.lp-course-tag{font-size:var(--fs-100);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-400);font-weight:700}.lp-course-count{font-family:var(--font-mono);color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-left:auto;font-size:1rem;font-weight:700}.lp-course-count span{color:var(--ink-400);font-weight:500}.lp-course-locked{font-size:var(--fs-200);color:var(--ink-500);padding:10px 0 4px 24px;line-height:1.6}.lp-course-locked strong{color:var(--ink-900);font-weight:600}.lp-rows{border-left:2px solid var(--line);margin-left:5px}.lp-marker{z-index:1;border:2px solid;border-radius:50%;justify-content:center;align-items:center;width:15px;height:15px;display:flex;position:absolute;top:18px;left:-9px}.lp-row-head{text-align:left;border-radius:var(--r-sm);width:100%;font:inherit;cursor:pointer;transition:background-color var(--dur-fast) var(--ease);background:0 0;border:none;align-items:flex-start;gap:14px;padding:14px 14px 14px 22px;display:flex}.lp-row-head:hover:not(:disabled){background:var(--surface-1)}.lp-row.is-locked .lp-row-head{cursor:not-allowed;opacity:.5}.lp-row.is-open .lp-row-head{background:var(--surface-1)}.lp-row-n{font-family:var(--font-mono);color:var(--ink-400);font-variant-numeric:tabular-nums;flex-shrink:0;padding-top:2px;font-size:.8rem;font-weight:700}.lp-row-body{flex:1;min-width:0}.lp-row-title{font-size:var(--fs-400);font-weight:var(--fw-strong);letter-spacing:-.015em;color:var(--ink-900);line-height:1.35;display:block}.lp-row.is-done .lp-row-title{color:var(--ink-500)}.lp-row-desc{-webkit-line-clamp:2;font-family:var(--font-prose);font-size:var(--fs-200);color:var(--ink-500);-webkit-box-orient:vertical;margin-top:3px;line-height:1.55;display:-webkit-box;overflow:hidden}.lp-row-meta{font-size:var(--fs-100);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-400);flex-wrap:wrap;align-items:center;gap:7px;margin-top:7px;font-weight:600;display:flex}.lp-row-tail{color:var(--ink-400);flex-shrink:0;align-items:center;padding-top:2px;display:flex}.lp-row-detail{padding:0 14px 18px 58px}.lp-outline{margin-bottom:var(--space-4);flex-direction:column;gap:5px;list-style:none;display:flex}.lp-outline li{font-size:var(--fs-200);color:var(--ink-700);padding-left:16px;line-height:1.5;position:relative}.lp-outline li:before{content:"";background:var(--ink-300);width:5px;height:5px;position:absolute;top:8px;left:0}.lp-row-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}@media (width<=720px){.lp-page{padding:28px 16px 100px}.lp-next-title{font-size:var(--fs-600)}.lp-row-head{gap:10px;padding:12px 8px 12px 18px}.lp-row-detail{padding-left:18px}.lp-row-desc{-webkit-line-clamp:3}}.lp-rows{--row:var(--a-solid,var(--primary))}.lp-as-ledger{border-left:none;margin-left:0}.lp-as-ledger .lp-marker{display:none}.lp-as-ledger .lp-row{border-bottom:1px solid var(--line)}.lp-as-ledger .lp-row:last-child{border-bottom:none}.lp-as-ledger .lp-row-head{align-items:baseline;gap:18px;padding:16px 12px}.lp-as-ledger .lp-row-n{color:var(--row);letter-spacing:-.05em;min-width:2.2ch;padding-top:0;font-size:1.5rem;font-weight:700}.lp-as-ledger .lp-row.is-done .lp-row-n{color:var(--ink-300)}.lp-as-ledger .lp-row-title{font-size:var(--fs-500)}.lp-as-ledger .lp-row-meta{text-transform:none;letter-spacing:0;font-size:var(--fs-200);color:var(--ink-500);font-weight:400}.lp-as-timeline{border-left:3px solid var(--line);margin-left:15px}.lp-as-timeline .lp-row-head{gap:12px;padding:12px 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.lp-row-n{color:var(--row);letter-spacing:-.05em;padding-top:0;font-size:1.7rem;font-weight:700}.lp-as-cards .lp-row-title{font-size:var(--fs-400)}.lp-as-cards .lp-row-desc{-webkit-line-clamp:3}.lp-as-cards .lp-row-tail{position:absolute;top:14px;right:14px}.lp-as-cards .lp-row-meta{margin-top:auto;padding-top:10px}.lp-as-cards .lp-row-detail{padding:0 16px 16px}.lp-as-tickets{border-left:none;flex-direction:column;gap:12px;margin-left:0;padding-top:14px;display:flex}.lp-as-tickets .lp-marker{display:none}.lp-as-tickets .lp-row{background:var(--card);border:var(--edge-w) solid var(--edge);border-radius:var(--r-md);box-shadow:var(--e-1);overflow:hidden}.lp-as-tickets .lp-row-head{align-items:stretch;gap:0;padding:0}.lp-as-tickets .lp-row-n{background:color-mix(in srgb, var(--row) 12%, transparent);border-right:2px dashed var(--edge);min-width:86px;color:var(--row);letter-spacing:-.05em;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:18px 10px;font-size:1.6rem;font-weight:700;display:flex}.lp-as-tickets .lp-row.is-done .lp-row-n{background:var(--surface-1);color:var(--ink-400)}.lp-as-tickets .lp-row-body{padding:16px 18px}.lp-as-tickets .lp-row-title{font-size:var(--fs-500)}.lp-as-tickets .lp-row-tail{padding:16px 18px 0 0}.lp-as-tickets .lp-row-detail{padding:0 18px 18px 104px}.lp-as-contents{border-left:none;margin-left:0;padding-top:8px}.lp-as-contents .lp-marker,.lp-as-contents .lp-row-desc{display:none}.lp-as-contents .lp-row-head{align-items:baseline;gap:20px;padding:11px 8px}.lp-as-contents .lp-row-n{font-family:var(--font-prose);color:var(--ink-300);letter-spacing:-.03em;min-width:2.4ch;padding-top:0;font-size:2rem;font-weight:400}.lp-as-contents .lp-row.is-done .lp-row-n{color:var(--row)}.lp-as-contents .lp-row-body{align-items:baseline;gap:10px;display:flex}.lp-as-contents .lp-row-title{font-family:var(--font-prose);font-size:var(--fs-500);letter-spacing:0;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0;max-width:62%;font-weight:400;overflow:hidden}.lp-as-contents .lp-row-meta{border-bottom:2px dotted var(--ink-300);flex:1;gap:0;min-width:20px;height:1px;margin-top:0;padding:0;overflow:hidden;transform:translateY(-4px)}.lp-as-contents .lp-row-meta>*{display:none}.lp-as-contents .lp-row-body:after{content:attr(data-mins);font-family:var(--font-mono);color:var(--ink-500);font-variant-numeric:tabular-nums;flex-shrink:0;font-size:.8rem}.lp-as-contents .lp-row-detail{padding-left:46px}@media (width<=720px){.lp-layouts{display:none}.lp-as-tickets .lp-row-n{min-width:62px;font-size:1.3rem}.lp-as-tickets .lp-row-detail{padding-left:78px}.lp-as-contents .lp-row-title{max-width:46%}}.lp-row-stub{display:none}.lp-as-tickets .lp-row-stub{font-family:var(--font-ui);letter-spacing:.06em;text-transform:uppercase;opacity:.75;font-size:.66rem;font-weight:600;display:block}.lp-as-tickets .lp-row-meta>span:first-child,.lp-as-tickets .lp-row-meta>span:nth-child(2){display:none}.lp-mode-contents{max-width:700px}.lp-mode-contents .lp-head{text-align:center;padding-bottom:var(--space-5);border-bottom:1px solid var(--line-strong);margin-bottom:var(--space-5);flex-direction:column;align-items:center;gap:0}.lp-mode-contents .lp-head>div{flex:none}.lp-mode-contents .eyebrow{letter-spacing:.28em}.lp-mode-contents .lp-title{font-family:var(--font-prose);letter-spacing:-.01em;margin:14px 0 12px;font-size:2.6rem;font-weight:400;line-height:1.12}.lp-mode-contents .lp-sub{font-family:var(--font-prose);font-size:var(--fs-300)}.lp-mode-contents .stat-strip{margin-bottom:var(--space-6);background:0 0;border:none;flex-wrap:wrap;justify-content:center;gap:0;display:flex}.lp-mode-contents .stat{border:none;padding:0 18px}.lp-mode-contents .stat+.stat{border-left:1px solid var(--line)}.lp-mode-contents .stat-label{font-family:var(--font-prose);letter-spacing:.1em;font-size:.72rem;font-weight:400}.lp-mode-contents .stat-value{font-family:var(--font-prose);font-size:1.2rem;font-weight:400}.lp-mode-contents .stat-note{display:none}.lp-mode-contents .lp-next{border:none;border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:none;text-align:center;padding:var(--space-5) 0;margin:0 0 var(--space-6);background:0 0;border-radius:0}.lp-mode-contents .lp-next-head{justify-content:center}.lp-mode-contents .lp-next-title{font-family:var(--font-prose);letter-spacing:-.01em;justify-content:center;font-weight:400}.lp-mode-contents .lp-next-n{font-family:var(--font-prose);color:var(--ink-300)}.lp-mode-contents .lp-next-desc{text-align:center;max-width:52ch;margin-inline:auto}.lp-mode-contents .lp-next-foot{justify-content:center}.lp-mode-contents 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.lp-title{font-size:2.4rem}.lp-mode-cards .lp-next{padding:var(--space-6);border-left-width:var(--edge-w);border-top:5px solid var(--a-solid,var(--primary));box-shadow:var(--e-3)}.lp-mode-cards .lp-next-title{font-size:var(--fs-800)}.lp-mode-cards .lp-next-desc{font-size:var(--fs-500);max-width:70ch}.lp-mode-cards .lp-course-head{border-bottom-width:1px}.lp-mode-tickets{max-width:900px}.lp-mode-tickets .lp-title{font-size:2.1rem}.lp-mode-tickets .stat-strip{border-radius:0}.lp-mode-tickets .stat-note{display:none}.lp-mode-tickets .lp-next{border-left-width:var(--edge-w);align-items:stretch;padding:0;display:flex;overflow:hidden}.lp-mode-tickets .lp-next-n{min-width:116px;padding:var(--space-5) 0;background:color-mix(in srgb, var(--a-solid,var(--primary)) 14%, transparent);border-right:2px dashed var(--edge);justify-content:center;align-items:center;font-size:2.6rem;display:flex}.lp-mode-tickets .lp-next-head,.lp-mode-tickets .lp-next-desc,.lp-mode-tickets .lp-next-foot{padding-inline:var(--space-5)}.lp-mode-tickets .lp-next-head{padding-top:var(--space-5)}.lp-mode-tickets .lp-next-foot{padding-bottom:var(--space-5)}.lp-mode-tickets .lp-next-title{padding-inline:var(--space-5);display:block}@media (width<=720px){.lp-mode-contents,.lp-mode-ledger,.lp-mode-timeline,.lp-mode-cards,.lp-mode-tickets{max-width:none}.lp-mode-contents .lp-title{font-size:1.9rem}.lp-mode-cards .lp-next-title,.lp-mode-ledger .lp-next-title{font-size:var(--fs-600)}.lp-mode-tickets .lp-next{display:block}.lp-mode-tickets .lp-next-n{border-right:none;border-bottom:2px dashed var(--edge);min-width:0;padding:10px 0;font-size:1.6rem}.lp-mode-timeline .lp-next{padding-left:var(--space-5);margin-left:0}.lp-mode-timeline .lp-next:before{display:none}}.lp-head>div:first-child{flex:380px}.lp-mode-contents 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var(--edge);width:100%;padding-top:12px}.guide-prompt{border-radius:var(--r-lg);background:var(--canvas);border:var(--edge-w) solid var(--gold-border);flex-direction:column;align-items:flex-start;gap:6px;width:min(520px,100vw - 48px);padding:14px 18px;animation:.42s cubic-bezier(.16,1,.3,1) both guide-prompt-in;display:flex;position:absolute;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 18px 36px -18px #00000061,0 2px 8px -2px #0000001a}@keyframes guide-prompt-in{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}.guide-prompt-text{font-size:var(--fs-200);color:var(--ink-700);margin:0;line-height:1.4}@media (width<=1180px){.guide-prompt{align-self:stretch;width:auto;animation:none;position:static;transform:none}}.guide-ok{pointer-events:auto}@media 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guide-draw{to{stroke-dashoffset:0}}.guide-arrow-path.is-leaving{animation:.26s cubic-bezier(.4,0,1,1) both guide-undraw}@keyframes guide-undraw{0%{stroke-dashoffset:0}to{stroke-dashoffset:900px}}.guide-head.is-leaving{animation:.2s cubic-bezier(.4,0,1,1) both guide-head-out}@keyframes guide-head-out{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.5)}}.guide-head{border-radius:var(--r-full);background:var(--gold-solid);width:34px;height:34px;color:var(--canvas);box-shadow:0 0 0 4px color-mix(in srgb, var(--canvas) 82%, transparent), 0 6px 16px -6px #0006;justify-content:center;align-items:center;margin:-17px 0 0 -17px;animation:.32s cubic-bezier(.16,1,.3,1) .7s both guide-head-in;display:inline-flex;position:absolute;top:40%}.guide-head--centre{top:42.5%;left:50%}.guide-head--left{top:42.5%;left:21%}.guide-head--right{top:42.5%;left:79%}@keyframes guide-head-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}@media 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.lesson-chunk:last-of-type{opacity:1}@supports (animation-timeline:view()){.lesson-read--stack .lesson-chunk{opacity:1;transition:none;animation:linear both introBand;animation-timeline:view();animation-range:cover}.lesson-read--stack .lesson-chunk:last-of-type{opacity:1}}@keyframes introBand{0%{opacity:.15}21%{opacity:.15}37%{opacity:1}61%{opacity:1}77%{opacity:.15}to{opacity:.15}}@media (prefers-reduced-motion:reduce){.lesson-read--stack .lesson-chunk{transition:none}}html[data-reduce-motion=on] .lesson-read--stack .lesson-chunk{transition:none}.intro-dock{flex:none}.intro-dock .lesson-tail{margin-top:18px;padding-bottom:0}.tw-c{opacity:0;animation:1ms linear forwards twChar;animation-delay:calc(var(--tw-start,0s) + var(--i,0) * var(--tw-step,12ms));position:relative}@keyframes twChar{to{opacity:1}}.tw-c:after{content:"";opacity:0;width:.07em;height:1.02em;animation:1ms linear forwards twCaretOn,1ms linear forwards twCaretOff;animation-delay:calc(var(--tw-start,0s) + var(--i,0) * var(--tw-step,12ms)), calc(var(--tw-start,0s) + (var(--i,0) + 1) * var(--tw-step,12ms));pointer-events:none;background:currentColor;position:absolute;top:.1em;left:100%}@keyframes twCaretOn{to{opacity:.9}}@keyframes twCaretOff{to{opacity:0}}.prose-lg.is-typing+.sr-only{margin:0}