.letters{display:flex;justify-content:center;margin:25px 0}.letter{color:#555;display:block;font-size:30px;height:50px;line-height:50px;text-align:center;text-decoration:none;transition:all .3s ease;width:50px}.letter-focus,.letter:hover{color:var(--main-color)}.letter-heading{align-items:center;display:flex;justify-content:space-between;margin:0 0 20px}.letter-name{color:var(--main-color);font-family:var(--font-poppins-bold);font-size:40px}.letter-border{border-top:3px solid #ccc;width:95%}.authors-container{display:flex;flex-wrap:wrap;margin:0 0 20px}.author-tile{margin:0 25px 25px 0}.author-tile a{align-items:center;display:flex;flex-direction:column;text-decoration:none;transition:all .3s ease}.author-image{aspect-ratio:1/1;border-radius:10px;filter:grayscale(100%);height:275px;width:275px}.author-name{color:var(--main-color);font-family:var(--font-poppins-bold);font-size:18px;line-height:40px;max-width:275px;text-decoration:none}.author-tile a:focus .author-name,.author-tile a:hover .author-name{color:var(--main-color-dark)}.author-tile a:focus .author-image,.author-tile a:hover .author-image{filter:grayscale(0)}.scroll-to-top{background:var(--main-color);border:none;border-radius:50%;bottom:30px;box-shadow:0 4px 15px rgba(0,0,0,.3);color:#fff;cursor:pointer;font-size:30px;height:50px;opacity:0;position:fixed;right:30px;transform:translateY(20px);transition:all .3s ease;visibility:hidden;width:50px;z-index:1000}.scroll-to-top:before{content:"↑";display:block;line-height:1}.scroll-to-top.visible{opacity:1;transform:translateY(0);visibility:visible}.scroll-to-top:hover{background:var(--main-color-dark);box-shadow:0 6px 20px rgba(0,0,0,.4);transform:translateY(-3px)}.scroll-to-top:focus-visible{outline:3px solid #fff;outline-offset:2px}.all-link{background-color:var(--main-color);color:#fff;display:block;font-size:20px;line-height:40px;margin:10px auto 30px;text-align:center;text-decoration:none;width:250px}.all-link:focus,.all-link:hover{background-color:var(--main-color-dark)}@media (max-width:600px){.letters{flex-wrap:wrap;justify-content:flex-start}.letter{height:60px;line-height:60px;width:60px}.letter-border{width:85%}.authors-container{justify-content:center}.scroll-to-top{bottom:20px;right:20px}}