:root{--color-bg:#000;--color-text:#fff;--color-primary:#0f0;--color-secondary:#333;--font-family:"Courier New",Courier,monospace}body{background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-family);margin:0;padding:0;-webkit-font-smoothing:antialiased}h1,h2,h3{font-weight:400;letter-spacing:2px}button,h1,h2,h3{text-transform:uppercase}button{background:transparent;border:1px solid var(--color-primary);color:var(--color-primary);cursor:pointer;font-family:inherit;font-size:1rem;padding:10px 20px;transition:all .2s}button:hover{background:var(--color-primary);color:var(--color-bg)}button:disabled{border-color:var(--color-secondary);color:var(--color-secondary);cursor:not-allowed}input{background:transparent;border:1px solid var(--color-secondary);color:var(--color-text);font-family:inherit;padding:8px}