:root{--bg-primary: #0a192f;--bg-secondary: #112240;--bg-tertiary: #1d3461;--text-primary: #ccd6f6;--text-secondary: #8892b0;--accent: #64ffda;--accent-hover: #4cd8b8;--border: #233554;--font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;--font-sans: "Calibre", "Inter", "San Francisco", "SF Pro Text", -apple-system, system-ui, sans-serif;--transition: all .25s cubic-bezier(.645, .045, .355, 1);--border-radius: 4px;--nav-height: 100px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{min-height:100vh}main{max-width:1000px;margin:0 auto;padding:0 24px}section{padding:80px 0}h1,h2,h3{color:var(--text-primary);font-weight:600}h2.section-heading{display:flex;align-items:center;font-size:clamp(24px,5vw,32px);white-space:nowrap;margin-bottom:40px;color:var(--text-primary)}h2.section-heading:after{content:"";display:block;height:1px;width:300px;background-color:var(--border);margin-left:20px}h2.section-heading .section-number{font-family:var(--font-mono);font-size:20px;color:var(--accent);margin-right:10px}a{color:var(--accent);text-decoration:none;transition:var(--transition)}a:hover{color:var(--accent-hover)}.btn{display:inline-block;padding:12px 28px;border:1px solid var(--accent);border-radius:var(--border-radius);color:var(--accent);background:transparent;font-family:var(--font-mono);font-size:14px;cursor:pointer;transition:var(--transition)}.btn:hover{background-color:#64ffda14}.btn:disabled{opacity:.6;cursor:not-allowed}.card{background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:24px;transition:var(--transition)}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.tag{display:inline-block;background-color:#64ffda1a;color:var(--accent);border-radius:3px;padding:2px 10px;font-family:var(--font-mono);font-size:12px;margin:3px}input,textarea{width:100%;background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--border-radius);color:var(--text-primary);font-family:var(--font-sans);font-size:14px;padding:12px 16px;transition:var(--transition);outline:none}input:focus,textarea:focus{border-color:var(--accent)}input::placeholder,textarea::placeholder{color:var(--text-secondary)}label{display:block;color:var(--text-secondary);font-family:var(--font-mono);font-size:13px;margin-bottom:6px}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media (max-width: 768px){main{padding:0 16px}section{padding:60px 0}}