.navbar{position:sticky;top:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:#fff;border-bottom:1px solid #e5e7eb;flex-wrap:nowrap}.navbar-brand{display:flex;align-items:center;text-decoration:none;flex-shrink:0}.navbar-menu{display:flex;align-items:center;gap:1.5rem;margin-left:2rem}.navbar-link{color:#1a1a1a;font-size:.875rem;font-weight:500;text-decoration:none;background:none;border:none;cursor:pointer;font-family:inherit;padding:0;transition:color .2s ease}.navbar-link:hover{color:#722020;text-decoration:none}.navbar-right{margin-left:auto;display:flex;align-items:center}.navbar-toggle{display:none;background:none;border:none;cursor:pointer;padding:0;margin-left:1rem}.navbar-toggle svg{width:24px;height:24px;fill:#4a5568}.logo-crisis{position:relative;display:inline-block}.logo-crisis-text{font-size:1.1rem;font-weight:600;color:#1a1a1a;position:relative;z-index:1}.logo-crisis-line{position:absolute;top:40%;left:0;width:100%;height:28px;transform:translateY(-50%);z-index:2;pointer-events:none}.navbar-brand:hover .logo-crisis-text{color:#722020}.dropdown{position:relative}.dropdown-toggle{display:inline-flex;align-items:center;gap:4px}.dropdown-arrow{display:inline-block;width:0;height:0;margin-left:4px;border-left:4px solid rgba(0,0,0,0);border-right:4px solid rgba(0,0,0,0);border-top:4px solid currentColor}.dropdown-menu{display:none;position:absolute;top:calc(100% + .25rem);left:0;min-width:200px;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(229,231,235,.5);border-radius:.5rem;box-shadow:0 4px 20px rgba(0,0,0,.3);padding:.5rem 0;z-index:1001;margin-top:0}.dropdown-menu::before{content:"";position:absolute;top:-.25rem;left:0;right:0;height:.25rem}.dropdown-menu.is-open{display:block}.dropdown-item{display:block;padding:.5rem 1rem;color:#1a1a1a;text-decoration:none;font-size:.875rem;transition:background .2s ease}.dropdown-item:hover{background:rgba(114,32,32,.1);color:#722020}.risk-indicator{font-size:.875rem;font-weight:500;color:#4a5568;text-decoration:none;opacity:0;transition:opacity .3s ease}.risk-indicator.loaded{opacity:1}.risk-indicator:hover{color:#722020}.risk-up{color:#ef4444}.risk-down{color:#22c55e}.risk-short{display:none}.risk-long{display:inline}@media (max-width: 1000px){.risk-long{display:none}.risk-short{display:inline}}@media (max-width: 480px){.navbar{padding:.5rem}.logo-crisis-text{font-size:.85rem}.logo-crisis-line{height:20px}}@media (max-width: 864px){.navbar-toggle{display:block}.navbar-menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;padding:1rem;gap:0;border-bottom:1px solid #e5e7eb}.navbar-menu.is-open{display:flex}.navbar-link{padding:.75rem .5rem;width:100%;text-align:left}.navbar-link:hover{background:rgba(114,32,32,.1)}.dropdown-menu{position:static;box-shadow:none;background:rgba(114,32,32,.05);border:none;border-radius:.25rem;margin-top:.5rem;margin-bottom:.5rem;backdrop-filter:none}.navbar-right{margin-left:auto;margin-right:auto}}:root{--color-primary: #722020;--color-primary-light: #c4512a;--color-primary-dark: #3d0f0f;--color-secondary: #3d9999;--color-accent: #e8b923;--color-muted: #6c757d;--color-bg: #f5f5f7;--color-bg-alt: #ffffff;--color-text: #1a1a1a;--color-text-light: #4a5568;--space-xs: 0.25rem;--space-sm: 0.5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-size-sm: 0.875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--container-max: 1200px;--navbar-height: 56px;--border-radius-sm: 0.25rem;--border-radius: 0.375rem;--border-radius-lg: 0.5rem;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);--shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1)}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:var(--space-md);font-weight:600;line-height:1.3;color:var(--color-text)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}h5{font-size:var(--font-size-base);font-weight:600}h6{font-size:var(--font-size-sm);font-weight:600}p{margin-top:0;margin-bottom:var(--space-md)}a{color:var(--color-secondary);text-decoration:none;transition:color .15s ease}a:hover{color:var(--color-primary);text-decoration:underline}img{max-width:100%;height:auto}ul,ol{margin:0 0 var(--space-md) 0;padding-left:var(--space-lg)}hr{border:0;border-top:1px solid var(--border-color);margin:var(--space-xl) 0}small{font-size:var(--font-size-sm)}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--space-md)}@media (min-width: 768px){.container{padding:0 var(--space-lg)}}.container-fluid{width:100%;padding:0}.stats-display{display:flex;justify-content:center;align-items:center;gap:var(--space-md);padding:var(--space-md) 0;flex-wrap:wrap;background:var(--color-bg-alt);border-bottom:1px solid var(--border-color)}.resources-nav{background:var(--color-bg-alt);border-bottom:1px solid var(--border-color);padding:var(--space-sm) 0}.resources-nav .container{display:flex;gap:var(--space-md)}.resources-nav a{color:var(--color-text-light);text-decoration:none;font-size:var(--font-size-sm);font-weight:500;padding:var(--space-xs) var(--space-sm);border-radius:var(--border-radius-sm);transition:all .15s ease}.resources-nav a:hover{color:var(--color-primary);background:#fff}.resources-nav a.active{color:#fff;background:var(--color-primary)}.resources-nav+section{padding-top:var(--space-lg)}.hero-section{background:linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-primary-light) 100%);color:#fff;position:relative}.hero-section .hero-inner{max-width:var(--container-max);margin:0 auto;display:flex;flex-direction:column;align-items:center;padding:var(--space-2xl) var(--space-lg)}@media (max-width: 767px){.hero-section .hero-inner{padding:var(--space-lg) var(--space-md)}}@media (min-width: 768px){.hero-section .hero-inner{flex-direction:row;align-items:center;gap:var(--space-3xl)}}.hero-section .hero-content{order:1;text-align:center}@media (min-width: 768px){.hero-section .hero-content{flex:1;text-align:left;order:2}}.hero-section .hero-book{display:none}@media (min-width: 768px){.hero-section .hero-book{display:block;order:1;flex-shrink:0}}.hero-section .hero-book img{display:block;width:auto;height:280px;box-shadow:0 8px 30px rgba(0,0,0,.4);border-radius:4px}.hero-section h1{color:#fff;font-size:var(--font-size-2xl);font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,.3);margin-bottom:var(--space-md);letter-spacing:-.02em}@media (min-width: 768px){.hero-section h1{font-size:var(--font-size-3xl)}}@media (min-width: 1024px){.hero-section h1{font-size:var(--font-size-4xl)}}.hero-section .lead{color:rgba(255,255,255,.9);font-size:var(--font-size-base);font-weight:400;max-width:550px;line-height:1.6;text-shadow:0 1px 2px rgba(0,0,0,.2);margin-bottom:0}@media (min-width: 768px){.hero-section .lead{font-size:var(--font-size-lg)}}.hero-section .hero-meta{margin-top:var(--space-md);font-size:var(--font-size-sm);color:rgba(255,255,255,.7)}.hero-section .hero-meta a{color:rgba(255,255,255,.9);text-decoration:underline;text-underline-offset:2px}.hero-section .hero-meta a:hover{color:#fff}main{min-height:calc(100vh - var(--navbar-height) - 200px)}section{padding:var(--space-2xl) 0}.content-card{background:var(--color-bg-alt);border-radius:var(--border-radius-lg);padding:var(--space-xl);box-shadow:var(--shadow)}.content-section{max-width:800px;margin:0 auto;padding:var(--space-2xl) var(--space-lg)}.content-section .lead{font-size:var(--font-size-xl);line-height:1.7;color:var(--color-text);margin-bottom:var(--space-xl)}.content-section p{font-size:var(--font-size-lg);line-height:1.8;margin-bottom:var(--space-lg);color:var(--color-text-light)}blockquote{border-left:3px solid var(--color-primary);padding-left:var(--space-md);margin:0 0 var(--space-xl) 0;font-style:italic;color:var(--color-text-light);line-height:1.7}blockquote:last-child{margin-bottom:0}pre{background:#1e293b;color:#e2e8f0;padding:var(--space-md);border-radius:var(--border-radius);overflow-x:auto;font-size:var(--font-size-sm);line-height:1.5;margin:0 0 var(--space-md) 0;max-width:100%}code{font-family:"SF Mono","Fira Code","Consolas",monospace;font-size:.4em}p code,li code{background:#f1f5f9;padding:.125em .375em;border-radius:.25rem;color:var(--color-primary-dark)}.code-page{padding-top:var(--space-lg)}.code-page .breadcrumb{margin-bottom:var(--space-md)}.code-header{margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:2px solid var(--color-primary)}.code-header h1{margin-bottom:var(--space-xs);color:var(--color-primary)}.license-notice{background:var(--color-bg-alt);border-radius:var(--border-radius);padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-xl);font-size:var(--font-size-sm)}.license-notice summary{cursor:pointer;color:var(--color-text-light);font-weight:500}.license-notice summary:hover{color:var(--color-primary)}.license-notice p{margin:var(--space-sm) 0 0;color:var(--color-muted);line-height:1.6}.chapter-list,.slides-list,.seminars-list,.errata-list{display:flex;flex-direction:column;gap:var(--space-xs);margin:var(--space-xl) 0}.slide-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease}.slide-item:hover{border-color:var(--color-primary);background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.slide-item .slide-chapter{font-weight:600;color:var(--color-text-light);min-width:2.5rem}.slide-item .slide-title{font-weight:500;flex:1}.slide-item .slide-version{color:var(--color-text-light)}.slide-item .slide-download{font-size:1.2rem;color:var(--color-text-light);transition:all .15s ease}.slide-item:hover .slide-download{color:var(--color-primary);transform:translateY(2px)}.seminar-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease}.seminar-item:hover{border-color:var(--color-primary);background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.seminar-item .seminar-number{font-weight:600;color:var(--color-text-light);min-width:2rem}.seminar-item .seminar-title{font-weight:500;flex:1}.seminar-item .seminar-version{color:var(--color-text-light)}.seminar-item .seminar-link{padding:var(--space-xs) var(--space-sm);background:var(--color-secondary);color:#fff;border-radius:var(--border-radius-sm);text-decoration:none;font-size:var(--font-size-sm);font-weight:500}.seminar-item .seminar-link:hover{background:var(--color-primary)}.chapter-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease;justify-content:space-between}.chapter-item:hover{border-color:var(--color-primary);background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.chapter-item .chapter-title{font-weight:500}.chapter-item .chapter-arrow{color:var(--color-text-light);transition:all .15s ease}.chapter-item:hover .chapter-arrow{color:var(--color-primary);transform:translateX(4px)}.errata-item a{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease}.errata-item a:hover{border-color:var(--color-primary);background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.errata-date{color:var(--color-text-light);min-width:6rem}.download-links{display:flex;gap:var(--space-md);margin-bottom:var(--space-xl)}.download-link{display:flex;flex-direction:column;padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease}.download-link:hover{border-color:var(--color-primary);background:var(--color-bg-alt);text-decoration:none}.download-link:hover span:first-child{color:var(--color-primary)}.download-link span:first-child{font-weight:500}.download-link .download-desc{font-size:var(--font-size-sm);color:var(--color-text-light)}.errata-page-nav{display:flex;justify-content:space-between;gap:var(--space-md);padding-top:var(--space-lg);margin-top:var(--space-xl);border-top:1px solid var(--border-color)}.errata-page-nav-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);text-decoration:none;color:var(--color-text);transition:all .15s ease;gap:var(--space-sm)}.errata-page-nav-item:hover{border-color:var(--color-primary);background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.errata-page-nav-item.errata-page-nav-next{margin-left:auto}.errata-page-nav-arrow{color:var(--color-text-light)}.errata-page-nav-title{font-weight:500}.code-content .row{margin-bottom:var(--space-lg);align-items:start}.code-content .col-6{min-width:0;overflow:hidden}.code-content h5{font-size:var(--font-size-base);font-weight:600;margin-bottom:var(--space-sm)}.code-content h5:first-of-type{color:var(--color-text-light);font-weight:500}.code-content hr{border:none;border-top:2px solid var(--border-color);margin:var(--space-2xl) 0}.code-content pre{white-space:pre;word-wrap:normal;overflow-x:auto;max-width:100%;font-size:.8rem;background:#f8f8f8;padding:var(--space-md);border-radius:var(--border-radius-sm)}.code-content code{font-size:.8rem;background:rgba(0,0,0,0)}table{width:100%;border-collapse:collapse;margin-bottom:var(--space-lg)}th,td{padding:var(--space-sm) var(--space-md);text-align:left;border-bottom:1px solid var(--border-color)}th{font-weight:600;background:var(--color-bg)}footer{background:var(--color-primary-dark);padding:var(--space-lg) 0;margin-top:var(--space-2xl)}.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--space-md)}.footer-copyright{color:rgba(255,255,255,.8);font-size:var(--font-size-sm)}.footer-social{display:flex;gap:var(--space-md)}.footer-social a{color:rgba(255,255,255,.7);transition:color .2s ease}.footer-social a:hover{color:var(--color-accent)}.footer-social a svg{width:20px;height:20px;fill:currentColor}.text-center{text-align:center}.text-muted{color:var(--color-muted)}.lead{font-size:var(--font-size-lg);color:var(--color-text-light)}.mb-3{margin-bottom:var(--space-lg)}.mb-4{margin-bottom:var(--space-xl)}.mt-4{margin-top:var(--space-xl)}.row{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}@media (min-width: 768px){.row{grid-template-columns:1fr 1fr}}.breadcrumb{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--font-size-sm);color:var(--color-muted);margin-bottom:var(--space-md)}.breadcrumb a{color:var(--color-text-light)}.breadcrumb a:hover{color:var(--color-primary);text-decoration:underline}.breadcrumb-separator{color:var(--color-muted)}.btn-amazon{background:#f90;color:#111;font-weight:600;font-size:var(--font-size-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--border-radius);text-decoration:none;display:inline-block;transition:background .2s ease,transform .2s ease;margin-top:var(--space-lg);box-shadow:0 2px 4px rgba(0,0,0,.2)}.btn-amazon:hover{background:#e68a00;color:#111;text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,.25)}.resources-section{background:var(--color-bg-alt);padding:var(--space-xl) 0 var(--space-2xl);margin:0}.resources-section h2{margin-bottom:var(--space-lg)}@media (max-width: 767px){.resources-section{padding:var(--space-md) 0 var(--space-lg)}.resources-section h2{margin-bottom:var(--space-sm);font-size:var(--font-size-xl)}}.resources-grid{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}@media (max-width: 575px){.resources-grid{gap:var(--space-sm)}}@media (min-width: 576px){.resources-grid{grid-template-columns:repeat(3, 1fr)}}@media (min-width: 992px){.resources-grid{grid-template-columns:repeat(5, 1fr)}}.resource-card{background:var(--color-bg);border-radius:var(--border-radius-lg);padding:var(--space-lg);text-align:center;text-decoration:none;color:var(--color-text);transition:transform .2s ease,box-shadow .2s ease;border:1px solid var(--border-color);display:flex;flex-direction:column}@media (max-width: 575px){.resource-card{display:block;padding:var(--space-sm) var(--space-md);text-align:left}.resource-card .resource-icon{display:none}.resource-card h3{display:inline;margin-bottom:0}.resource-card h3::after{content:": "}.resource-card p{display:inline}}.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);text-decoration:none;color:var(--color-text)}.resource-card:hover .resource-icon{color:var(--color-primary)}.resource-card h3{font-size:var(--font-size-base);font-weight:600;margin-bottom:var(--space-xs);color:var(--color-text)}.resource-card p{font-size:var(--font-size-sm);color:var(--color-text-light);margin-bottom:0;line-height:1.4;flex-grow:1}.resource-icon{width:36px;height:36px;margin:0 auto var(--space-sm);color:var(--color-primary-light);transition:color .2s ease}.resource-icon svg{width:100%;height:100%;stroke-width:2.5}.topics-section{padding:var(--space-xl) 0}.topics-section h2{text-align:center;margin-bottom:var(--space-lg)}@media (max-width: 767px){.topics-section{padding:var(--space-md) 0}.topics-section h2{margin-bottom:var(--space-sm);font-size:var(--font-size-xl)}}.topics-list{columns:1;column-gap:var(--space-3xl);max-width:900px;margin:0 auto}@media (min-width: 768px){.topics-list{columns:2}}.topics-list li{margin-bottom:var(--space-xs);break-inside:avoid;padding-left:var(--space-sm)}.testimonials-section{padding:var(--space-2xl) 0}.testimonials-grid{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}@media (max-width: 767px){.testimonials-grid{gap:var(--space-sm)}}@media (min-width: 768px){.testimonials-grid{grid-template-columns:repeat(2, 1fr)}}@media (min-width: 1200px){.testimonials-grid{grid-template-columns:repeat(4, 1fr)}}.testimonial-card{background:var(--color-bg-alt);border-radius:var(--border-radius-lg);padding:var(--space-lg);display:flex;flex-direction:column;position:relative;transition:box-shadow .2s ease}.testimonial-card blockquote{font-style:italic;color:var(--color-text);line-height:1.6;margin:0 0 var(--space-md);font-size:var(--font-size-base)}.testimonial-card.has-full{cursor:pointer}.testimonial-card.has-full .testimonial-excerpt::after{content:" ▼";font-size:.7em;color:var(--color-primary)}.testimonial-card.has-full:hover{box-shadow:var(--shadow-lg)}.testimonial-card.has-full:hover .testimonial-excerpt{display:none}.testimonial-card.has-full:hover .testimonial-full{display:block}.testimonial-full{display:none}.testimonial-author{margin-top:auto;padding-top:var(--space-sm);border-top:1px solid var(--border-color)}.testimonial-author strong{display:block;font-size:var(--font-size-sm);color:var(--color-text)}.testimonial-author span{font-size:var(--font-size-sm);color:var(--color-text-light)}@media (hover: none){.testimonial-card.has-full .testimonial-excerpt::after{content:" (tap to expand)";font-style:normal;font-size:var(--font-size-sm);color:var(--color-text-light)}.testimonial-card.has-full:focus .testimonial-excerpt,.testimonial-card.has-full:active .testimonial-excerpt{display:none}.testimonial-card.has-full:focus .testimonial-full,.testimonial-card.has-full:active .testimonial-full{display:block}}