:root {
  --default-color: #fff;
  --main-color: #fadadd;
  --color-gray: #f5f5f5;
  --text-color: #333a4d;
  --strong-color: #ff6f91;
  --accent-color: #ff9927;
  --base-color: #f7ecec;
  --color-accent-yellow: #fffb1e;
  --button-pink: #ff8b8b;
}

body {
  font-family: sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 20px;
  color: var(--text-color);
  background-color: var(--base-color);
}

label {
  display: block;
  margin-top: 1em;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.5em;
  margin-top: 0.3em;
  box-sizing: border-box;
  font-size: 0.9rem;
  border-radius: 6px;
  border: 1px solid #999;
}

.checkbox-group label {
  display: inline-block;
  margin-right: 1em;
}

.btn-wrap {
  text-align: center;
  margin-top: 50px;
}

.required,
.optional {
  font-size: 0.8em;
}

.required {
  color: red;
}

.optional {
  color: #367dc4;
}

.flex {
  display: flex;
}

.label-wrap {
  align-items: center;
  gap: 0.5em;

  label {
    margin-top: 0;
    font-weight: normal;
  }
}

.tac {
  text-align: center;
}

.mt50 {
  margin-top: 50px;
}

.center {
  text-align: center;
}

.bold {
  font-weight: bold;
}

input {
  &[type="checkbox"],
  &[type="radio"] {
    width: 1em;
    aspect-ratio: 1/1;
  }
}

button {
  background-color: var(--button-pink);
  filter: drop-shadow(0px 3px 0px #d68390);
  color: #fff;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  transition: 0.1s;
  padding: 1rem 2rem;
  letter-spacing: 0.25em;
  font-size: 1.2rem;
  font-weight: bold;

  &:hover {
    filter: none;
    transform: translateY(3px);
  }

  & + p {
    margin-top: 1em;
  }
}

.no-spacing {
  letter-spacing: normal;
}

h1 {
  color: var(--accent-color);
  text-align: center;
  margin-bottom: 30px;

  @media (max-width: 430px) {
    font-size: 6vw;
  }
}

p + p {
  margin-top: 1em;
}

label {
  font-weight: bold;
}

form {
  margin-top: 50px;
}

@media (max-width: 430px) {
  html {
    font-size: 15px;
  }
}