@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");

:root {
  --primary-color: #99a5ff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Montserrat", sans-serif;
  background-color: #131619;
  background-image: url("assets/background-blur.svg");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 3rem 1rem;
  line-height: 1.5;
}

span {
  display: inline-block;
  width: 2.2ch;
  text-align: center;
}

h1 {
  font-weight: 700;
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

h1 .count {
  color: var(--primary-color);
}

ul {
  list-style: none;
  max-width: 680px;
  width: 100%;
  background-color: rgb(26 29 33/0.4);
  border: rgb(255 255 255/0.1) solid 1px;
  border-radius: 12px;
  overflow: hidden;
  padding: 0;
  margin-bottom: 3rem;
  transition: box-shadow 0.3s ease;
}

li {
  list-style: none;
  margin: 0;
  padding: 0;
}

li:last-child {
  border-bottom: none;
}

li a {
  display: block;
  width: 100%;
  padding: 1.25rem 1.5rem;
  color: var(--primary-color);
  font-weight: 500;
  font-size: 1.125rem;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

li a:hover,
li a:focus {
  /* color: #c6ccff; overwritten by js*/
  background-color: rgba(153, 165, 255, 0.2);
}

li a:focus-visible {
  outline: 3px solid #99a5ff;
}

footer {
  margin-top: auto;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: lightgray;
  user-select: none;
  text-align: center;
  max-width: 680px;
}

footer a {
  color: #99a5ff;
  text-decoration: none;
}

#scroll-top-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  bottom: 3rem;
  right: 3rem;
  opacity: 0;
  pointer-events: none;
  background-color: #333;
  color: white;
  border: none;
  border-radius: 50%;
  padding: 0;
  width: 3rem;
  height: 3rem;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: opacity 0.3s ease;
  z-index: 1000;
}

#scroll-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

#scroll-top-btn:hover {
  background-color: #555;
}

@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
  }

  li a {
    font-size: 1rem;
    padding: 1rem 1.25rem;
  }
}