:root{--primary-color: #2563eb;--primary-color-rgb: 37, 99, 235;--primary-light: #3b82f6;--secondary-color: #10b981;--text-color: #1f2937;--text-color-rgb: 31, 41, 55;--bg-color: #ffffff;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--border-radius: 8px;--transition: all 0.3s ease;--sidebar-width: 270px}.wrapper{max-width:100%;margin:0;padding:0}body{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;color:var(--text-color);line-height:1.6;background-color:var(--bg-color);padding:20px;margin:0}a{color:var(--primary-color);transition:var(--transition);text-decoration:none !important}a:hover{color:var(--primary-light);text-decoration:none}header{width:var(--sidebar-width);position:fixed;left:20px;top:20px;bottom:20px;padding-right:20px;box-sizing:border-box}header h1{margin-bottom:1.5rem;font-weight:700;font-size:1.75rem}header img{border-radius:50%;max-width:150px;margin:0 auto 1.5rem;display:block;border:3px solid var(--gray-200);transition:var(--transition)}header img:hover{transform:scale(1.03);border-color:var(--primary-light)}.downloads{background:none;width:100%;margin:0;padding:0}.downloads li{width:100%;display:block;border:none;margin:0 0 0.5rem 0}.downloads li a{display:flex;align-items:center;padding:0.75rem 1rem;border-radius:var(--border-radius);background-color:var(--gray-100);transition:var(--transition);border:1px solid var(--gray-200);width:100%;box-sizing:border-box;text-align:left;font-weight:500}.downloads li a:hover{background-color:var(--primary-color);color:white;transform:translateX(5px)}.downloads li a strong{margin-left:0.5rem}.downloads li a i,.downloads li a svg{margin-right:0.5rem;font-size:1.2rem}.downloads li:last-child{margin-bottom:0}section{margin-left:calc(var(--sidebar-width) + 20px);padding:0 20px 20px 20px;width:calc(100% - (var(--sidebar-width) + 20px));box-sizing:border-box}section h1{font-size:2rem;margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--gray-200)}section p{margin-bottom:1.5rem}.welcome-banner{background:linear-gradient(135deg, rgba(37,99,235,0.1), rgba(16,185,129,0.1));border-radius:var(--border-radius);padding:2rem;margin-bottom:2rem;border:1px solid var(--gray-200);position:relative;overflow:hidden}.welcome-banner::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(to right, var(--primary-color), var(--secondary-color))}.welcome-banner h2{margin-top:0;color:var(--primary-color);font-size:1.5rem}.welcome-banner p{margin-bottom:0}.module-navigation{position:sticky;top:20px;background-color:var(--bg-color);border-radius:var(--border-radius);border:1px solid var(--gray-200);margin-bottom:2rem;overflow:hidden}.module-navigation .module-nav-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background-color:var(--primary-color)}.module-navigation .module-nav-header h3{margin:0;color:white;font-size:1.1rem}.module-navigation .module-nav-header .nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:5px}.module-navigation .module-nav-header .nav-toggle .bar{display:block;width:22px;height:2px;background-color:white;margin:5px 0;transition:var(--transition)}.module-navigation .module-nav-header .nav-toggle.active .bar:nth-child(1){transform:rotate(-45deg) translate(-5px, 6px)}.module-navigation .module-nav-header .nav-toggle.active .bar:nth-child(2){opacity:0}.module-navigation .module-nav-header .nav-toggle.active .bar:nth-child(3){transform:rotate(45deg) translate(-5px, -6px)}.module-navigation .module-nav-content{padding:1rem 0;max-height:calc(100vh - 100px);overflow-y:auto;scroll-behavior:smooth}.module-navigation .module-nav-content ul{list-style:none;margin:0;padding:0}.module-navigation .module-nav-content li{margin:0}.module-navigation .module-nav-content .nav-link{display:flex;align-items:center;padding:0.5rem 1.5rem;color:var(--text-color);transition:var(--transition)}.module-navigation .module-nav-content .nav-link:hover{background-color:var(--gray-100);color:var(--primary-color);transform:translateX(3px)}.module-navigation .module-nav-content .nav-link.active{background-color:rgba(var(--primary-color-rgb), 0.2);color:var(--primary-color);font-weight:500;border-left:4px solid var(--primary-color);padding-left:calc(1.5rem - 4px)}.module-navigation .module-nav-content .unit-dot{display:flex;align-items:center;justify-content:center;min-width:2rem;height:2rem;background-color:var(--gray-200);color:var(--text-color);font-size:0.75rem;font-weight:bold;border-radius:50%;margin-right:0.75rem;transition:var(--transition)}.module-navigation .module-nav-content .nav-link:hover .unit-dot,.module-navigation .module-nav-content .nav-link.active .unit-dot{background-color:var(--primary-color);color:white}.module-navigation .module-nav-content li:nth-child(4) .nav-link:hover,.module-navigation .module-nav-content li a[href*="unit-4"]:hover,.module-navigation .module-nav-content li:nth-child(4) .nav-link.active,.module-navigation .module-nav-content li a[href*="unit-4"].active{background-color:rgba(var(--primary-color-rgb), 0.3);font-weight:500}.module-navigation .module-nav-content li:nth-child(4) .nav-link:hover .unit-dot,.module-navigation .module-nav-content li a[href*="unit-4"]:hover .unit-dot,.module-navigation .module-nav-content li:nth-child(4) .nav-link.active .unit-dot,.module-navigation .module-nav-content li a[href*="unit-4"].active .unit-dot{background-color:var(--primary-color);color:white;transform:scale(1.1)}.module-container{display:flex;gap:2rem}.module-sidebar{width:250px;flex-shrink:0}.module-content{flex-grow:1}@media (max-width: 768px){.module-container{flex-direction:column}.module-sidebar{width:100%}.module-navigation .module-nav-header .nav-toggle{display:block}.module-navigation .module-nav-content{max-height:0;overflow:hidden;transition:max-height 0.3s ease}.module-navigation .module-nav-content.show{max-height:1000px}}.module-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:1.5rem;margin:2rem 0}.module-card{border-radius:var(--border-radius);border:1px solid var(--gray-200);padding:1.5rem;transition:var(--transition);position:relative;overflow:hidden}.module-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px -5px rgba(0,0,0,0.1);border-color:var(--primary-light)}.module-card h2{font-size:1.25rem;margin-top:0;margin-bottom:1rem;color:var(--primary-color)}.module-card p{font-size:0.9rem;margin-bottom:0}.module-card::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:4px;background:linear-gradient(to right, var(--primary-color), var(--secondary-color));transform:scaleX(0);transform-origin:left;transition:var(--transition)}.module-card:hover::after{transform:scaleX(1)}.module-card.has-content{background-color:rgba(37,99,235,0.05)}.unit-card{margin-bottom:1.5rem;padding:0;background-color:var(--bg-color);border-radius:var(--border-radius);border:1px solid var(--gray-200);transition:var(--transition);overflow:hidden;scroll-margin-top:20px}.unit-card:target{border:2px solid var(--primary-color);box-shadow:0 10px 25px -5px rgba(var(--primary-color-rgb), 0.2)}.unit-card:target .unit-header{background:linear-gradient(to right, rgba(var(--primary-color-rgb), 0.3), rgba(var(--primary-color-rgb), 0.1))}.unit-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px -5px rgba(0,0,0,0.1)}.unit-card .unit-header{display:flex;align-items:center;padding:1rem 1.5rem;background:linear-gradient(to right, rgba(var(--primary-color-rgb), 0.05), transparent);border-bottom:1px solid var(--gray-200)}.unit-card .unit-header.active{background:linear-gradient(to right, rgba(var(--primary-color-rgb), 0.2), rgba(var(--primary-color-rgb), 0.05))}.unit-card .unit-header .unit-number{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background-color:var(--primary-color);color:white;font-weight:bold;border-radius:50%;margin-right:1rem;flex-shrink:0}.unit-card .unit-header h3{margin:0;color:var(--primary-color);font-size:1.2rem}.unit-card .unit-description{padding:1.5rem;border-bottom:1px solid var(--gray-200)}.unit-card .unit-description p{margin:0}.unit-card .unit-artifacts{padding:0.75rem 1.5rem 1.5rem}.unit-card .unit-artifacts h4{margin-top:0;margin-bottom:1rem;font-size:1rem;color:var(--text-color)}.unit-card .unit-artifacts ul{margin:0;padding:0;list-style:none}.unit-card .unit-artifacts li{margin-bottom:0.75rem}.unit-card .unit-artifacts li:last-child{margin-bottom:0}.unit-card .unit-artifacts .artifact-link{display:block;padding:0.75rem;border-radius:var(--border-radius);background-color:var(--gray-100);transition:var(--transition)}.unit-card .unit-artifacts .artifact-link:hover{background-color:var(--primary-color);color:white}.unit-card .unit-artifacts .artifact-link:hover .artifact-description{color:rgba(255,255,255,0.8)}.unit-card .unit-artifacts .artifact-title{display:block;font-weight:bold;margin-bottom:0.25rem}.unit-card .unit-artifacts .artifact-description{display:block;font-size:0.875rem;color:rgba(0,0,0,0.6);transition:var(--transition)}.unit-content{padding:0 1.5rem 1.5rem;display:block}.unit-content h4{color:var(--primary-color);margin:1.5rem 0 1rem;font-size:1.1rem}.unit-content h5{color:var(--text-color);font-size:1rem;margin:1.25rem 0 0.75rem}.unit-content p{margin-bottom:1rem}.unit-content ul,.unit-content ol{margin-bottom:1.5rem;padding-left:1.5rem}.unit-content pre{background-color:var(--gray-100);border-radius:var(--border-radius);padding:1rem;overflow-x:auto;margin-bottom:1.5rem}.unit-content code{font-family:monospace;font-size:0.9em}.unit-content img{max-width:100%;height:auto;border-radius:var(--border-radius);margin:1rem 0}.unit-content blockquote{border-left:4px solid var(--primary-color);padding-left:1rem;margin-left:0;color:rgba(var(--text-color-rgb), 0.8);font-style:italic}.references-section{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--gray-200)}.references-section .references-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;cursor:pointer}.references-section .references-header h4{margin:0;font-size:1rem}.references-section .references-header .icon{transition:var(--transition)}.references-section .references-content{display:block}.references-section .references-content ol{margin-bottom:0;font-size:0.9rem}.back-to-home{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--gray-200)}.back-to-home .back-link{display:inline-flex;align-items:center;padding:0.75rem 1.5rem;background-color:var(--gray-100);color:var(--text-color);border-radius:var(--border-radius);transition:var(--transition);font-weight:500}.back-to-home .back-link:hover{background-color:var(--primary-color);color:white;transform:translateX(-3px)}@media (max-width: 960px){.wrapper{padding:1rem}header,section{width:100%}header{border-right:none;border-bottom:1px solid var(--gray-200);padding-bottom:2rem;margin-bottom:2rem;text-align:center}.downloads li{display:inline-block;width:auto;margin-right:0.5rem}}footer{margin-left:calc(var(--sidebar-width) + 20px);padding:0 20px 20px 20px;width:calc(100% - (var(--sidebar-width) + 20px));box-sizing:border-box}