@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--color-bg:#fff;--color-surface:#f8fafc;--color-surface-hover:#f1f5f9;--color-border:#e2e8f0;--color-text:#0f172a;--color-text-muted:#64748b;--color-text-subtle:#94a3b8;--color-primary:#2563eb;--color-primary-light:#eff6ff;--color-primary-dark:#1d4ed8;--color-l0:#059669;--color-l0-light:#ecfdf5;--color-l0-border:#a7f3d0;--color-l1:#7c3aed;--color-l1-light:#f5f3ff;--color-l1-border:#ddd6fe;--color-l2:#d97706;--color-l2-light:#fffbeb;--color-l2-border:#fde68a;--color-l3:#0f766e;--color-l3-light:#f0fdfa;--color-l3-border:#99f6e4;--color-l4:#1d4ed8;--color-l4-light:#eff6ff;--color-l4-border:#bfdbfe;--color-l5:#7c3aed;--color-l5-light:#f5f3ff;--color-l5-border:#ddd6fe;--color-l6:#db2777;--color-l6-light:#fdf2f8;--color-l6-border:#fbcfe8;--color-l7:#4f46e5;--color-l7-light:#eef2ff;--color-l7-border:#c7d2fe;--color-l8:#0891b2;--color-l8-light:#ecfeff;--color-l8-border:#a5f3fc;--color-l9:#65a30d;--color-l9-light:#f7fee7;--color-l9-border:#d9f99d;--color-l10:#475569;--color-l10-light:#f1f5f9;--color-l10-border:#cbd5e1;--color-success:#10b981;--color-warning:#f59e0b;--color-danger:#ef4444;--color-hands-on-bg:#fff7ed;--color-hands-on-border:#fed7aa;--color-hands-on-accent:#ea580c;--color-tip-bg:#f0fdf4;--color-tip-border:#bbf7d0;--color-callout-bg:#eff6ff;--color-callout-border:#bfdbfe;--color-card:#fff;--color-nav-bg:#fffffff2;--color-warn-bg:#fffbeb;--color-warn-border:#fde68a;--color-danger-bg:#fef2f2;--color-danger-border:#fecaca;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000014, 0 2px 4px #0000000a;--shadow-lg:0 10px 30px #0000001a, 0 4px 8px #0000000d;--font-body:"Inter", system-ui, -apple-system, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--nav-height:64px;--sidebar-width:260px;--content-max:1000px}:root[data-theme=dark]{--color-bg:#0f172a;--color-surface:#1e293b;--color-surface-hover:#283548;--color-border:#334155;--color-text:#f1f5f9;--color-text-muted:#94a3b8;--color-text-subtle:#64748b;--color-primary:#60a5fa;--color-primary-light:#172033;--color-primary-dark:#93c5fd;--color-l0-light:#0c2a22;--color-l1-light:#1e1635;--color-l2-light:#2a2008;--color-l3-light:#0a2622;--color-l4-light:#14233f;--color-l5-light:#1e1635;--color-l6-light:#2a1320;--color-l7-light:#1a1840;--color-l8-light:#082a30;--color-l9-light:#1e2a08;--color-l10-light:#1e293b;--color-hands-on-bg:#2a1e0c;--color-hands-on-border:#7c4a1e;--color-hands-on-accent:#fb923c;--color-tip-bg:#0c2a1a;--color-tip-border:#1e5a3a;--color-callout-bg:#14233f;--color-callout-border:#2a4a7f;--color-card:#243042;--color-nav-bg:#0f172aeb;--color-warn-bg:#2a2008;--color-warn-border:#7c5a1e;--color-danger-bg:#2a1414;--color-danger-border:#7c2a2a;--shadow-sm:0 1px 3px #0006, 0 1px 2px #0000004d;--shadow-md:0 4px 12px #00000073, 0 2px 4px #0000004d;--shadow-lg:0 10px 30px #00000080, 0 4px 8px #00000059;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-body);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;line-height:1.7}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}h1{letter-spacing:-.03em;font-size:2.25rem}h2{letter-spacing:-.02em;font-size:1.6rem}h3{font-size:1.2rem}h4{font-size:1rem}p{margin-bottom:1rem}p:last-child{margin-bottom:0}ul,ol{margin-bottom:1rem;padding-left:1.5rem}li{margin-bottom:.35rem}code{font-family:var(--font-mono);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.15em .4em;font-size:.88em}pre{font-family:var(--font-mono);color:#e2e8f0;border-radius:var(--radius-md);background:#1e293b;margin:1.5rem 0;padding:1.25rem 1.5rem;font-size:.88rem;line-height:1.6;overflow-x:auto}pre code{color:inherit;background:0 0;border:none;padding:0;font-size:1em}strong{font-weight:600}blockquote{border-left:3px solid var(--color-primary);background:var(--color-primary-light);border-radius:0 var(--radius-md) var(--radius-md) 0;color:var(--color-text-muted);margin:1.5rem 0;padding:.75rem 1.25rem}.nav{z-index:100;background:var(--color-nav-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);height:var(--nav-height);position:sticky;top:0}.nav-inner{align-items:center;gap:.5rem;max-width:1280px;height:100%;margin:0 auto;padding:0 1.5rem;display:flex}.nav-logo{color:var(--color-text);white-space:nowrap;align-items:center;gap:.5rem;margin-right:1.5rem;font-size:1.05rem;font-weight:800;text-decoration:none;display:flex}.nav-logo-icon{background:linear-gradient(135deg, var(--color-primary), var(--color-l1));border-radius:var(--radius-sm);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:1rem;display:flex}.nav-links{flex:1;align-items:center;gap:.25rem;display:flex}.nav-item{cursor:pointer;position:relative}.nav-btn{border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;white-space:nowrap;font-size:.88rem;font-weight:500;font-family:var(--font-body);background:0 0;border:none;align-items:center;gap:.3rem;padding:.45rem .75rem;transition:all .15s;display:flex}.nav-btn:hover,.nav-btn.active{background:var(--color-surface);color:var(--color-text)}.nav-btn svg{width:14px;height:14px;transition:transform .2s}.nav-item:hover .nav-btn svg{transform:rotate(180deg)}.nav-dropdown{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-md);min-width:260px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;z-index:200;padding:.5rem;transition:all .15s;position:absolute;top:calc(100% + 8px);left:0;transform:translateY(-6px)}.nav-item:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.nav-dropdown-item{border-radius:var(--radius-sm);color:var(--color-text);align-items:center;gap:.75rem;padding:.6rem .75rem;font-size:.875rem;transition:background .1s;display:flex}.nav-dropdown-item:hover{background:var(--color-surface);text-decoration:none}.nav-dd-icon{border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:.85rem;display:flex}.nav-dd-title{border-radius:var(--radius-sm);color:var(--color-text-muted);white-space:nowrap;align-items:center;gap:.4rem;padding:.45rem .75rem;font-size:.875rem;font-weight:500;line-height:1.3;transition:all .15s;display:flex}.nav-item:hover .nav-dd-title{background:var(--color-surface);color:var(--color-text)}.nav-dd-sub{color:var(--color-text-muted);font-size:.78rem}.nav-dd-label{text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-subtle);padding:.4rem .75rem .2rem;font-size:.72rem;font-weight:600}.nav-dd-divider{background:var(--color-border);height:1px;margin:.4rem 0}.nav-dropdown-wide{min-width:300px}.nav-mega{grid-template-columns:repeat(3,minmax(220px,1fr));gap:0;min-width:720px;max-height:80vh;padding:.5rem 0;overflow-y:auto;display:grid!important}.nav-mega-col{border-right:1px solid var(--color-border);padding:0 .25rem}.nav-mega-col:nth-child(3n){border-right:none}.nav-mega-col .nav-dd-divider{display:none}.nav-right{align-items:center;gap:.5rem;margin-left:auto;display:flex}.nav-progress-badge{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);align-items:center;gap:.4rem;padding:.35rem .75rem;font-size:.8rem;font-weight:500;display:flex}.nav-dot{background:var(--color-success);border-radius:50%;width:8px;height:8px}.btn-nav-start{background:var(--color-primary);color:#fff;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;font-family:var(--font-body);border:none;padding:.4rem .9rem;transition:background .15s}.btn-nav-start:hover{background:var(--color-primary-dark)}.lesson-layout{grid-template-columns:var(--sidebar-width) 1fr;width:100%;min-height:calc(100vh - var(--nav-height));display:grid}.lesson-sidebar{width:var(--sidebar-width);border-right:1px solid var(--color-border);background:var(--color-surface);top:var(--nav-height);height:calc(100vh - var(--nav-height));flex-shrink:0;padding:1.25rem 0;position:sticky;overflow-y:auto}.sidebar-level-label{text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-subtle);padding:0 1rem .5rem;font-size:.72rem;font-weight:700}.sidebar-lesson{color:var(--color-text-muted);cursor:pointer;border-left:3px solid #0000;align-items:center;gap:.65rem;padding:.55rem 1rem;font-size:.85rem;font-weight:400;transition:all .1s;display:flex}.sidebar-lesson:hover{background:var(--color-card);color:var(--color-text);text-decoration:none}.sidebar-lesson.active{background:var(--color-card);color:var(--color-primary);border-left-color:var(--color-primary);font-weight:600}.sidebar-lesson.done{color:var(--color-success)}.s-num{border:1.5px solid;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:.68rem;font-weight:700;display:flex}.sidebar-lesson.done .s-num{background:var(--color-success);border-color:var(--color-success);color:#fff}.sidebar-divider{background:var(--color-border);height:1px;margin:.75rem 0}.sidebar-capstone{color:var(--color-warning);align-items:center;gap:.65rem;padding:.55rem 1rem;font-size:.85rem;font-weight:600;display:flex}.lesson-main{flex:1;min-width:0;padding:2.5rem 3rem}.lesson-content-inner{width:100%;max-width:none;display:block}.lesson-header{border-bottom:1px solid var(--color-border);margin-bottom:2.5rem;padding-bottom:1.5rem}.lesson-meta{flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.lesson-level-tag{text-transform:uppercase;letter-spacing:.07em;border-radius:var(--radius-full);padding:.25rem .6rem;font-size:.72rem;font-weight:700}.lesson-level-tag.l0{background:var(--color-l0-light);color:var(--color-l0)}.lesson-level-tag.l1{background:var(--color-l1-light);color:var(--color-l1)}.lesson-level-tag.l3{background:var(--color-l3-light);color:var(--color-l3)}.lesson-level-tag.l4{background:var(--color-l4-light);color:var(--color-l4)}.lesson-level-tag.l2{background:var(--color-l2-light);color:var(--color-l2)}.lesson-number{color:var(--color-text-muted);font-size:.82rem;font-weight:500}.lesson-duration{color:var(--color-text-muted);align-items:center;gap:.3rem;font-size:.82rem;display:flex}.lesson-title{margin-bottom:.5rem;font-size:2rem}.lesson-subtitle{color:var(--color-text-muted);font-size:1.05rem}.profession-tags{flex-wrap:wrap;gap:.4rem;margin-top:1rem;display:flex}.profession-tag{border-radius:var(--radius-full);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-muted);padding:.2rem .55rem;font-size:.75rem;font-weight:500}.lesson-section{margin-bottom:2.5rem}.lesson-section>h2{border-bottom:1px solid var(--color-border);margin-bottom:1rem;padding-bottom:.5rem;font-size:1.4rem}.lesson-section h3{margin:1.5rem 0 .75rem;font-size:1.1rem}.lesson-section h4{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin:1.25rem 0 .5rem;font-size:.95rem}.section-card{margin-bottom:2.5rem}.section-card>h2{border-bottom:1px solid var(--color-border);margin-bottom:1rem;padding-bottom:.5rem;font-size:1.4rem}.section-card h3{margin:1.5rem 0 .75rem;font-size:1.1rem}.section-card h4{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin:1.25rem 0 .5rem;font-size:.95rem}.section-card p{margin:0 0 1rem;line-height:1.7}.section-card ul,.section-card ol{margin:.75rem 0 1rem;padding-left:1.5rem}.section-card li{margin-bottom:.4rem;line-height:1.6}.steps-list{flex-direction:column;gap:1rem;margin:1.25rem 0;display:flex}.step{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid var(--color-primary);border-radius:var(--radius-md);padding:1rem 1.25rem}.step>strong{margin-bottom:.4rem;font-size:.95rem;display:block}.step p{color:var(--color-text-muted);margin:.3rem 0 0;font-size:.9rem;line-height:1.6}.step code{font-size:.82rem}.info-box{background:var(--color-callout-bg);border:1px solid var(--color-callout-border);border-radius:var(--radius-md);margin:1.25rem 0;padding:1rem 1.25rem;font-size:.9rem;line-height:1.6}.info-box strong{margin-bottom:.3rem;display:block}.hands-on-box{background:var(--color-hands-on-bg);border:1.5px solid var(--color-hands-on-border);border-radius:var(--radius-lg);margin:2rem 0;padding:1.5rem}.hands-on-box>h3{text-transform:uppercase;letter-spacing:.07em;color:var(--color-hands-on-accent);margin:0 0 1rem;font-size:1rem;font-weight:700}.hands-on-box p{margin:0 0 .75rem;font-size:.9rem}.hands-on-box .steps-list{margin-top:.5rem}.hands-on-box .step{border-left-color:var(--color-hands-on-accent)}.callout{border-radius:var(--radius-md);gap:.75rem;margin:1.5rem 0;padding:1.1rem 1.25rem;display:flex}.callout-icon{flex-shrink:0;margin-top:.1rem;font-size:1.1rem}.callout-body{flex:1}.callout-body p{margin:0;font-size:.9rem}.callout-body strong{margin-bottom:.3rem;font-size:.95rem;display:block}.callout.info{background:var(--color-callout-bg);border:1px solid var(--color-callout-border)}.callout.tip{background:var(--color-tip-bg);border:1px solid var(--color-tip-border)}.callout.warning{background:var(--color-warn-bg);border:1px solid var(--color-warn-border)}.callout.danger{background:var(--color-danger-bg);border:1px solid var(--color-danger-border)}.hands-on{background:var(--color-hands-on-bg);border:1.5px solid var(--color-hands-on-border);border-radius:var(--radius-lg);margin:2rem 0;padding:1.5rem}.hands-on-header{text-transform:uppercase;letter-spacing:.07em;color:var(--color-hands-on-accent);align-items:center;gap:.6rem;margin-bottom:.75rem;font-size:.85rem;font-weight:700;display:flex}.hands-on h3{margin:0 0 .5rem;font-size:1.1rem}.hands-on p{font-size:.9rem}.hands-on-steps{counter-reset:step;margin:1rem 0 0;padding:0;list-style:none}.hands-on-steps li{counter-increment:step;border-bottom:1px dashed var(--color-hands-on-border);gap:.75rem;padding:.6rem 0;font-size:.9rem;display:flex}.hands-on-steps li:last-child{border-bottom:none}.hands-on-steps li:before{content:counter(step);background:var(--color-hands-on-accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:.75rem;font-weight:700;display:flex}.prompt-box{border-radius:var(--radius-md);background:#1e293b;margin:1.25rem 0;overflow:hidden}.prompt-box-header{background:#0f172a;border-bottom:1px solid #334155;justify-content:space-between;align-items:center;padding:.6rem 1rem;display:flex}.prompt-box-label{color:#94a3b8;text-transform:uppercase;letter-spacing:.05em;font-size:.75rem;font-weight:600}.copy-btn{border-radius:var(--radius-sm);color:#94a3b8;cursor:pointer;font-size:.75rem;font-weight:500;font-family:var(--font-body);background:0 0;border:1px solid #334155;padding:.25rem .6rem;transition:all .15s}.copy-btn:hover{color:#fff;background:#334155}.copy-btn.copied{color:var(--color-success);border-color:var(--color-success)}.prompt-box-content{font-family:var(--font-mono);color:#e2e8f0;white-space:pre-wrap;padding:1rem 1.25rem;font-size:.85rem;line-height:1.7}.comparison-table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.88rem}.comparison-table th{text-align:left;background:var(--color-surface);border:1px solid var(--color-border);padding:.7rem 1rem;font-size:.82rem;font-weight:600}.comparison-table td{border:1px solid var(--color-border);vertical-align:top;padding:.65rem 1rem}.comparison-table tr:nth-child(2n) td{background:var(--color-surface)}.check{color:var(--color-success);font-weight:700}.cross{color:var(--color-danger)}.partial{color:var(--color-warning)}.profession-spotlight{border:1px solid var(--color-border);border-radius:var(--radius-md);margin:1.5rem 0;overflow:hidden}.spotlight-tabs{border-bottom:1px solid var(--color-border);background:var(--color-surface);display:flex;overflow-x:auto}.spotlight-tab{color:var(--color-text-muted);cursor:pointer;white-space:nowrap;font-size:.82rem;font-weight:500;font-family:var(--font-body);background:0 0;border:none;border-bottom:2px solid #0000;padding:.6rem 1rem;transition:all .1s}.spotlight-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary);background:var(--color-card)}.spotlight-panel{padding:1.25rem;display:none}.spotlight-panel.active{display:block}.concept-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin:1.5rem 0;display:grid}.concept-card{border:1px solid var(--color-border);border-radius:var(--radius-md);text-align:center;padding:1.1rem}.concept-card .c-icon{margin-bottom:.5rem;font-size:2rem}.concept-card .c-title{margin-bottom:.3rem;font-size:.9rem;font-weight:700}.concept-card .c-desc{color:var(--color-text-muted);font-size:.8rem}.ai-tool-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:1.5rem 0;display:grid}.ai-tool-card{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-card);padding:1.25rem;transition:box-shadow .2s}.ai-tool-card:hover{box-shadow:var(--shadow-md)}.tool-logo{margin-bottom:.5rem;font-size:2rem}.tool-name{margin-bottom:.25rem;font-size:1rem;font-weight:700}.tool-maker{color:var(--color-text-muted);margin-bottom:.6rem;font-size:.78rem}.tool-tags{flex-wrap:wrap;gap:.3rem;margin-bottom:.75rem;display:flex}.tool-tag{border-radius:var(--radius-full);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-muted);padding:.15rem .5rem;font-size:.72rem}.tool-tag.free{background:var(--color-l0-light);color:var(--color-l0);border-color:var(--color-l0-border)}.tool-tag.paid{color:#b45309;background:#fef3c7;border-color:#fde68a}.tool-desc{color:var(--color-text-muted);font-size:.83rem}.quick-ref{background:var(--color-card);border:1.5px solid var(--color-primary);border-radius:var(--radius-lg);margin:2rem 0;padding:1.5rem}.quick-ref-header{text-transform:uppercase;letter-spacing:.07em;color:var(--color-primary);align-items:center;gap:.5rem;margin-bottom:1rem;font-size:.78rem;font-weight:700;display:flex}.quick-ref-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;display:grid}.quick-ref-item h4{text-transform:none;letter-spacing:0;margin-bottom:.35rem;font-size:.82rem;font-weight:700}.quick-ref-item ul{color:var(--color-text-muted);padding-left:1.2rem;font-size:.83rem}.timeline{padding-left:2rem;position:relative}.timeline:before{content:"";background:var(--color-border);width:2px;position:absolute;top:0;bottom:0;left:.5rem}.timeline-item{margin-bottom:1.5rem;position:relative}.timeline-dot{background:var(--color-primary);width:12px;height:12px;box-shadow:0 0 0 2px var(--color-primary);border:2px solid #fff;border-radius:50%;position:absolute;top:.25rem;left:-1.65rem}.timeline-year{color:var(--color-primary);text-transform:uppercase;letter-spacing:.05em;font-size:.78rem;font-weight:700}.timeline-text{margin-top:.2rem;font-size:.9rem}.lesson-nav{border-top:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:1rem;margin-top:2rem;padding:1.5rem 0;display:flex}.lesson-nav-link{border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);align-items:center;gap:.5rem;padding:.65rem 1.1rem;font-size:.875rem;font-weight:500;transition:all .15s;display:flex}.lesson-nav-link:hover{background:var(--color-surface);text-decoration:none}.lesson-nav-link.next{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.lesson-nav-link.next:hover{background:var(--color-primary-dark)}.mark-complete-btn{background:var(--color-success);color:#fff;border-radius:var(--radius-md);cursor:pointer;font-size:.875rem;font-weight:600;font-family:var(--font-body);border:none;align-items:center;gap:.4rem;padding:.5rem 1rem;transition:all .15s;display:flex}.mark-complete-btn:hover{opacity:.9}.mark-complete-btn.done{background:var(--color-l0-light);color:var(--color-success);border:1px solid var(--color-l0-border)}.hero{text-align:center;border-bottom:1px solid var(--color-border);background:linear-gradient(160deg,#f8faff 0%,#eff6ff 40%,#f5f3ff 100%);padding:5rem 1.5rem 4rem}:root[data-theme=dark] .hero{background:linear-gradient(160deg,#0f172a 0%,#14233f 45%,#1a1840 100%)}.hero-badge{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-primary);box-shadow:var(--shadow-sm);align-items:center;gap:.4rem;margin-bottom:1.5rem;padding:.35rem 1rem;font-size:.82rem;font-weight:600;display:inline-flex}.hero h1{max-width:720px;margin:0 auto 1.25rem;font-size:3rem}.hero h1 .highlight{background:linear-gradient(135deg, var(--color-primary), var(--color-l1));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.hero-subtitle{color:var(--color-text-muted);max-width:560px;margin:0 auto 2rem;font-size:1.15rem}.hero-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}.hero-stats{flex-wrap:wrap;justify-content:center;gap:2.5rem;margin-top:3rem;display:flex}.hero-stat-number{font-size:1.75rem;font-weight:800}.hero-stat-label{color:var(--color-text-muted);font-size:.82rem;font-weight:500}.btn-primary{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;font-size:.95rem;font-weight:600;font-family:var(--font-body);border:none;align-items:center;gap:.5rem;padding:.75rem 1.75rem;transition:all .15s;display:inline-flex}.btn-primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-1px)}.btn-secondary{background:var(--color-card);color:var(--color-text);border-radius:var(--radius-md);border:1px solid var(--color-border);cursor:pointer;font-size:.95rem;font-weight:600;font-family:var(--font-body);align-items:center;gap:.5rem;padding:.75rem 1.75rem;transition:all .15s;display:inline-flex}.btn-secondary:hover{background:var(--color-surface);text-decoration:none;transform:translateY(-1px)}.level-badge{text-transform:uppercase;letter-spacing:.07em;border-radius:var(--radius-full);align-items:center;gap:.35rem;margin-bottom:.75rem;padding:.3rem .75rem;font-size:.75rem;font-weight:700;display:inline-flex}.level-badge.l0{background:var(--color-l0-light);color:var(--color-l0);border:1px solid var(--color-l0-border)}.level-badge.l1{background:var(--color-l1-light);color:var(--color-l1);border:1px solid var(--color-l1-border)}.level-badge.l2{background:var(--color-l2-light);color:var(--color-l2);border:1px solid #fde68a}.level-badge.l3{background:var(--color-l3-light);color:var(--color-l3);border:1px solid var(--color-l3-border)}.level-badge.l4{background:var(--color-l4-light);color:var(--color-l4);border:1px solid var(--color-l4-border)}.level-badge.l5{background:var(--color-l5-light);color:var(--color-l5);border:1px solid var(--color-l5-border)}.level-badge.l6{background:var(--color-l6-light);color:var(--color-l6);border:1px solid var(--color-l6-border)}.level-badge.l7{background:var(--color-l7-light);color:var(--color-l7);border:1px solid var(--color-l7-border)}.level-badge.l8{background:var(--color-l8-light);color:var(--color-l8);border:1px solid var(--color-l8-border)}.level-badge.l9{background:var(--color-l9-light);color:var(--color-l9);border:1px solid var(--color-l9-border)}.level-badge.l10{background:var(--color-l10-light);color:var(--color-l10);border:1px solid var(--color-l10-border)}.login-page{background:linear-gradient(160deg,#f8faff,#eff6ff 50%,#f5f3ff);justify-content:center;align-items:center;min-height:100vh;padding:1.5rem;display:flex}.login-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);width:100%;max-width:400px;box-shadow:var(--shadow-lg);padding:2.5rem}.login-logo{justify-content:center;align-items:center;gap:.5rem;margin-bottom:.5rem;font-size:1.75rem;font-weight:800;display:flex}.login-logo-icon{background:linear-gradient(135deg, var(--color-primary), var(--color-l1));border-radius:var(--radius-md);color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.25rem;display:flex}.login-subtitle{text-align:center;color:var(--color-text-muted);margin-bottom:2rem;font-size:.9rem}.form-group{margin-bottom:1.25rem}.form-label{margin-bottom:.4rem;font-size:.875rem;font-weight:600;display:block}.form-input{border:1.5px solid var(--color-border);border-radius:var(--radius-md);width:100%;font-size:.95rem;font-family:var(--font-body);padding:.7rem .9rem;transition:border-color .15s}.form-input:focus{border-color:var(--color-primary);outline:none}.form-error{color:var(--color-danger);margin-top:.4rem;font-size:.82rem}.login-submit{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;width:100%;font-size:1rem;font-weight:600;font-family:var(--font-body);border:none;margin-top:.5rem;padding:.8rem;transition:all .15s}.login-submit:hover{background:var(--color-primary-dark)}.login-submit:disabled{opacity:.6;cursor:not-allowed}.pl-filters{flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1.5rem;display:flex}.pl-search{border:1.5px solid var(--color-border);border-radius:var(--radius-md);min-width:200px;font-size:.9rem;font-family:var(--font-body);flex:1;padding:.6rem 1rem;transition:border-color .15s}.pl-search:focus{border-color:var(--color-primary);outline:none}.filter-btn{border-radius:var(--radius-full);border:1.5px solid var(--color-border);background:var(--color-card);cursor:pointer;color:var(--color-text-muted);font-size:.8rem;font-weight:500;font-family:var(--font-body);padding:.4rem .85rem;transition:all .15s}.filter-btn:hover,.filter-btn.active{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}.prompt-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem;display:grid}.prompt-card{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-card);padding:1.25rem;transition:box-shadow .2s}.prompt-card:hover{box-shadow:var(--shadow-md)}.prompt-card-text{color:var(--color-text-muted);font-size:.83rem;font-family:var(--font-mono);background:var(--color-surface);border-radius:var(--radius-sm);max-height:80px;margin:.6rem 0;padding:.75rem;line-height:1.6;overflow:hidden}.glossary-search{border:1.5px solid var(--color-border);border-radius:var(--radius-md);width:100%;font-size:.95rem;font-family:var(--font-body);margin-bottom:2rem;padding:.75rem 1rem}.glossary-search:focus{border-color:var(--color-primary);outline:none}.glossary-letter{color:var(--color-primary);border-bottom:2px solid var(--color-primary-light);margin-bottom:.75rem;padding-bottom:.35rem;font-size:1.5rem;font-weight:800}.glossary-term{margin-bottom:.25rem;font-size:.95rem;font-weight:700}.glossary-def{color:var(--color-text-muted);font-size:.875rem}footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding:2rem 1.5rem}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;max-width:1100px;margin:0 auto;display:flex}.footer-logo{font-size:.95rem;font-weight:700}.footer-links{flex-wrap:wrap;gap:1.5rem;display:flex}.footer-links a{color:var(--color-text-muted);font-size:.85rem}.footer-note{color:var(--color-text-subtle);text-align:center;width:100%;margin-top:.75rem;font-size:.78rem}.capstone-layout{min-height:calc(100vh - var(--nav-height));flex-direction:column;display:flex}.capstone-main{flex:1;padding:2.5rem 1.5rem}.capstone-content-inner{max-width:860px;margin:0 auto}.stats-row{flex-wrap:wrap;justify-content:center;gap:2.5rem;margin-top:1.75rem;display:flex}.stat{flex-direction:column;align-items:center;gap:.2rem;display:flex}.stat-value{color:var(--color-text);font-size:1.35rem;font-weight:700}.stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:.78rem}.l0-section,.l1-section,.l2-section,.l3-section,.l4-section,.l5-section,.l6-section,.l7-section,.l8-section,.l9-section,.l10-section{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin-bottom:1.75rem;padding:2rem}.l0-section{border-left:4px solid var(--color-l0)}.l1-section{border-left:4px solid var(--color-l1)}.l2-section{border-left:4px solid var(--color-l2)}.l3-section{border-left:4px solid var(--color-l3)}.l4-section{border-left:4px solid var(--color-l4)}.l5-section{border-left:4px solid var(--color-l5)}.l6-section{border-left:4px solid var(--color-l6)}.l7-section{border-left:4px solid var(--color-l7)}.l8-section{border-left:4px solid var(--color-l8)}.l9-section{border-left:4px solid var(--color-l9)}.l10-section{border-left:4px solid var(--color-l10)}.race-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-top:1rem;display:grid}.race-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1rem 1.25rem}.race-letter{background:var(--color-l0-light);width:2rem;height:2rem;color:var(--color-l0);border-radius:50%;justify-content:center;align-items:center;margin-bottom:.5rem;font-size:.9rem;font-weight:700;display:inline-flex}.capstone-hero{border-radius:var(--radius-xl);text-align:center;margin-bottom:2.5rem;padding:3rem 2rem}.capstone-hero.l0{background:linear-gradient(135deg, var(--color-l0-light), #ecfdf5)}.capstone-hero.l1{background:linear-gradient(135deg, var(--color-l1-light), #ede9fe)}.capstone-hero.l2{background:linear-gradient(135deg, var(--color-l2-light), #fef3c7)}.capstone-hero.l3{background:linear-gradient(135deg, var(--color-l3-light), #ccfbf1)}.capstone-hero.l4{background:linear-gradient(135deg, var(--color-l4-light), #dbeafe)}.capstone-hero.l5{background:linear-gradient(135deg, var(--color-l5-light), #ede9fe)}.capstone-hero.l6{background:linear-gradient(135deg, var(--color-l6-light), #fce7f3)}.capstone-hero.l7{background:linear-gradient(135deg, var(--color-l7-light), #e0e7ff)}.capstone-hero.l8{background:linear-gradient(135deg, var(--color-l8-light), #cffafe)}.capstone-hero.l9{background:linear-gradient(135deg, var(--color-l9-light), #ecfccb)}.capstone-hero.l10{background:linear-gradient(135deg, var(--color-l10-light), #e2e8f0)}.lesson-level-tag.l5{background:var(--color-l5-light);color:var(--color-l5)}.lesson-level-tag.l6{background:var(--color-l6-light);color:var(--color-l6)}.lesson-level-tag.l7{background:var(--color-l7-light);color:var(--color-l7)}.lesson-level-tag.l8{background:var(--color-l8-light);color:var(--color-l8)}.lesson-level-tag.l9{background:var(--color-l9-light);color:var(--color-l9)}.lesson-level-tag.l10{background:var(--color-l10-light);color:var(--color-l10)}.capstone-badge{text-transform:uppercase;letter-spacing:.07em;border-radius:var(--radius-full);background:var(--color-card);color:var(--color-warning);border:1px solid #fde68a;align-items:center;gap:.4rem;margin-bottom:1rem;padding:.3rem .8rem;font-size:.78rem;font-weight:700;display:inline-flex}@media (max-width:900px){.lesson-layout{grid-template-columns:1fr}.lesson-sidebar{display:none}.lesson-main{grid-column:1;padding:1.5rem 1rem}}@media (max-width:640px){.hero h1{font-size:2rem}.hero-stats{gap:1.5rem}.nav-links{display:none}.lesson-nav{flex-wrap:wrap}.prompt-grid{grid-template-columns:1fr}}@media print{body *{visibility:hidden!important}.cert-print,.cert-print *{visibility:visible!important}.cert-print{width:100%;position:absolute;top:0;left:0;box-shadow:none!important;border:2px solid #b8860b!important}.cert-toolbar{display:none!important}}