:root{--color-primary: #7ac64d;--color-secondary: #ffe600;--color-light-100: #fff;--color-light-200: #ccc;--color-dark-100: #111;--color-dark-200: #222;--color-dark-300: #333;--color-dark-400: #444;--color-dark-500: #7a7a75;--color-dark-600: #a9a6a6}*{margin:0;padding:0;box-sizing:border-box;text-decoration:none;list-style-type:none;scroll-behavior:smooth}.container{font-family:Arial,Helvetica,sans-serif;--margin-inline: 20px;margin:0 auto;max-width:1200px;width:calc(100% - 2 * var(--margin-inline))}.helper{min-height:100vh;background-color:var(--color-light-100)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.btn{display:block;text-decoration:none;z-index:1;margin-inline:auto;font-family:Arial,Helvetica,sans-serif;font-size:1rem;padding:20px 40px;border-radius:0;color:var(--color-light-100);background-color:#000}.btn:disabled{background-color:var(--color-dark-600);cursor:not-allowed}.btn:not([disabled]){transition:background-color .2s ease-out;cursor:pointer}.btn:not([disabled]):hover{background-color:var(--color-primary);color:var(--color-dark-100)}