:root{--canvas:#000;--primary:#18b4e9;--primary-dim:#0e7ca3;--heading:#e8f4f8;--body:#9bb3bc;--muted:#4a5c63;--line:#1e3a44;--danger:#e23d28}*{box-sizing:border-box;margin:0;padding:0;border-radius:0}html{-webkit-text-size-adjust:100%}body{background:var(--canvas);color:var(--body);font-family:ui-monospace,SFMono-Regular,JetBrains Mono,Menlo,Consolas,monospace;font-size:14px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{background:var(--primary);color:var(--canvas)}.wrap{max-width:760px;margin:0 auto;padding:40px 22px 72px}.h{color:var(--heading);text-transform:uppercase;letter-spacing:.22em}.dim{color:var(--muted)}.frame{border:1px solid var(--line);padding:18px}.cursor:after{content:"█";color:var(--primary);animation:blink 1.1s steps(2) infinite}@keyframes blink{50%{opacity:0}}@media (prefers-reduced-motion:reduce){.cursor:after{animation:none}}button,input{font:inherit;border-radius:0}input{background:#000;border:1px solid var(--line);color:var(--heading);padding:11px 12px;width:100%}input:focus{outline:none;border-color:var(--primary)}button{background:var(--primary);border:1px solid var(--primary);color:var(--canvas);padding:11px 20px;cursor:pointer;text-transform:uppercase;letter-spacing:.16em;font-size:12px}button:hover{background:#000;color:var(--primary)}button:disabled{opacity:.5;cursor:default}