::selection {
  background: var(--bg-0);
  color: var(--bg-1);
}

body {
  font-family: var(--ff);
  background: var(--bg-1);
}

/* section */
.section-0 .container {
  padding: 5rem 1rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
}
.section-0 .container h1 {
  font-weight: 700;
  font-size: clamp(5rem, 18vw, 8rem);
  text-align: center;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.section-0 .container form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  max-width: 700px;
  margin: 2rem 0 1rem 0;

  border-radius: 50px;
}
.section-0 .container form input[type="text"] {
  flex: 1;
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--bg-2);
  border-radius: 50px;
  background: var(--bg-2);
  font-size: 16px;
  outline: none;
  color: var(--text-1);
}
.section-0 .container form input[type="text"]:focus {
  outline: 1px solid var(--bg-0);
}
.section-0 .container form .btn-0 {
  background: var(--bg-0);
  color: var(--text-0);
  padding: 0.8rem 1.8rem;
  border: 1px solid var(--bg-0);
  border-radius: 50px;
  font-weight: 500;
  font-size: 16px;
  cursor: pointer;
}

/* section-1 */
.section-1 .container {
  padding: 1rem;
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}
.section-1 .container a {
  border: 1px solid var(--bg-0);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 14px;
  color: var(--bg-0);
  text-decoration: none;
  font-weight: 500;
  transition: 200ms;
}
.section-1 .container a:hover {
  background: var(--bg-0);
  color: var(--text-0);
}

@media (max-width: 400px) {
    .section-0 .container form input[type="text"] {
        width: 100%;
    }
  .section-0 .container form {
    flex-direction: column;
    align-items: center;
  }
}