:root{--bg: #000000;--fg: #c0c0c0;--fg-bright: #e0e0e0;--fg-dim: #808080;--border: #404040;--cga-cyan: #55ffff;--cga-magenta: #ff55ff;--cga-yellow: #ffff55;--cga-red: #ff5555;--cga-green: #55ff55}*,*:before,*:after{box-sizing:border-box}html{background:var(--bg);color:var(--fg)}body{margin:0;min-height:100vh;font-family:IBM Plex Mono,JetBrains Mono,ui-monospace,monospace;font-size:15px;line-height:1.45;background:var(--bg);color:var(--fg)}a{color:var(--cga-cyan);text-decoration:underline;text-underline-offset:2px}a:hover{color:var(--fg-bright)}a:visited{color:var(--cga-magenta)}::selection{background:var(--fg-dim);color:var(--bg)}.terminal-app{min-height:100vh;padding:1rem 1.25rem 2rem;max-width:58rem;margin:0 auto}.terminal-output{white-space:pre-wrap;word-break:break-word}.terminal-line{margin:0 0 .15rem}.terminal-line--error{color:var(--cga-red)}.terminal-line--system{color:var(--fg-dim)}.terminal-prompt-row{display:flex;align-items:flex-start;gap:.35rem;margin-top:.35rem}.terminal-prompt{color:var(--fg-bright);flex-shrink:0;-webkit-user-select:none;user-select:none}.terminal-input-wrap{position:relative;flex:1;min-width:0}#terminal-input{width:100%;min-width:0;background:transparent;border:none;outline:none;color:var(--fg-bright);font:inherit;padding:0;caret-color:var(--fg-bright);caret-shape:block}.terminal-block-caret{position:absolute;top:0;left:0;width:1ch;height:1.25em;background:var(--fg-bright);pointer-events:none;opacity:.9;animation:terminal-caret-blink 1.05s step-end infinite}@keyframes terminal-caret-blink{50%{opacity:0}}.welcome-block{margin-bottom:1rem;color:var(--fg)}.welcome-block .accent{color:var(--cga-yellow)}.prose-page{min-height:100vh;padding:1.25rem 1.25rem 3rem;max-width:52rem;margin:0 auto}.prose-page header{margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.prose-page h1{font-size:1.35rem;font-weight:600;color:var(--fg-bright);margin:0 0 .5rem}.prose-page .back{font-size:.9rem;color:var(--fg-dim)}.prose-page .back a{color:var(--cga-cyan)}.prose-body h2{font-size:1.15rem;margin-top:2rem;color:var(--fg-bright);font-weight:600}.prose-body h3{font-size:1.05rem;margin-top:1.5rem;color:var(--fg-bright);font-weight:600}.prose-body p,.prose-body li{margin:.65rem 0}.prose-body ul,.prose-body ol{padding-left:1.35rem}.prose-body img{max-width:100%;height:auto;border:1px solid var(--border)}.prose-body blockquote{margin:1rem 0;padding-left:1rem;border-left:3px solid var(--border);color:var(--fg-dim)}.prose-body hr{border:none;border-top:1px solid var(--border);margin:2rem 0}.prose-body code:not(pre code){color:var(--fg-bright);background:#1a1a1a;padding:.12rem .35rem;border:1px solid var(--border);font-size:.9em}.prose-body pre{background:#0d0d0d;border:1px solid var(--border);padding:.85rem 1rem;overflow-x:auto;font-size:.88rem;line-height:1.4}.prose-body pre code{color:var(--fg);background:none;border:none;padding:0}.katex{color:var(--fg);font-size:1em}.prose-body .footnote-ref,.prose-body .footnote-backref{color:var(--cga-cyan)}.prose-body .footnotes{margin-top:3rem;padding-top:1rem;border-top:1px solid var(--border);font-size:.9rem;color:var(--fg-dim)}video.demo{display:block;max-width:100%;margin:1rem 0;border:1px solid var(--border);background:#0a0a0a}iframe.demo-iframe{display:block;width:100%;max-width:100%;aspect-ratio:16 / 9;margin:1rem 0;border:1px solid var(--border);background:#0a0a0a}.project-actions{margin-top:1.25rem;display:flex;flex-wrap:wrap;gap:.75rem}.btn{display:inline-block;padding:.35rem .75rem;border:1px solid var(--border);color:var(--fg-bright);background:#111;text-decoration:none;font-size:.9rem}.btn:hover{border-color:var(--cga-cyan);color:var(--cga-cyan)}