* {
  margin: 0;
  padding: 0;
  outline: 0;
  box-sizing: border-box;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

:root {
  font-size: 62.5%;
  font-family: "Inter", sans-serif;
  --color-scrollbar-track: #1a1924;
  --color-scrollbar-thumb: #141e35;
}

body::-webkit-scrollbar {
  width: 0.7rem;
}

body::-webkit-scrollbar-thumb {
  background-color: var(--color-scrollbar-thumb);
  border-radius: 999px;
}

body::-webkit-scrollbar-track {
  background-color: var(--color-scrollbar-track);
}

body {
  background-color: #0f172a;
}

main {
  max-width: 640px;
  margin: 0 auto 5rem;
  padding: 2rem;
}

header {
  margin-top: 6.4rem;
  padding-bottom: 2.4rem;
  border-bottom: 1px solid #334155;
}

header h1 {
  margin-top: 2.4rem;
  font-size: 3rem;
  color: #f1f5f9;
}

#quiz {
  counter-reset: quiz-item;
}

.quiz-item {
  margin-top: 2.4rem;
  border-radius: 0.6rem;
  border: 1px solid #475569;

  overflow: hidden;
}

.quiz-item h3 {
  font-size: 1.6rem;
  padding: 1.5rem 2rem;
  color: #e2e8f0;

  display: flex;
  align-items: center;
  gap: 1.2rem;

  background-color: #1e293b;
}

.quiz-item h3::before {
  counter-increment: quiz-item;
  content: counter(quiz-item);

  background-color: #475569;
  width: 2.8rem;
  height: 2.8rem;
  font-size: 1.2rem;

  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;

  border-radius: 50%;
}

.quiz-item dl {
  padding: 1.5rem 2.4rem;

  display: grid;
  gap: 0.8rem;
}

.quiz-item dl dt {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.3rem;
  line-height: 2.4rem;
  letter-spacing: 0;
  color: #e2e8f0;
}

input {
  all: unset;
  border: 1px solid #94a3b8;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

input:checked {
  border: 1px solid #7cb81c;
}

input:checked::before {
  content: "";
  width: 1rem;
  height: 1rem;
  background-color: #a3e635;
  border-radius: 50%;
}

#hits {
  font-size: 1.3rem;
  color: #0f172a;
  width: 100%;
  padding: 1.2rem;

  text-align: center;
  background-color: #a3e635;

  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 999;
}