:root {
  --primary: #3f3d56;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  color: #3f3d56;
  font-family: 'M PLUS 1p', sans-serif;
  font-family: 'Zen Kaku Gothic New', sans-serif;
}

img {
  max-width: 100%;
}

.bs-primary {
  background-color: var(--primary);
}

.fs-lg {
  font-size: clamp(3.5rem, 2.409rem + 5.45vw, 6.5rem);
  text-align: center;
  line-height: 1.35;
  margin-bottom: 3rem;
}

.catchcopy {
  font-size: clamp(1rem, 0.818rem + 0.91vw, 1.5rem);
  text-align: center;
  margin: clamp(0.5rem, -0.409rem + 4.55vw, 3rem) 0;
}

.logo img {
  padding-left: clamp(3rem, 2.273rem + 3.64vw, 5rem);
  max-height: 65px;
}

nav ul li:hover {
  color: #ff9300;
}

header > img {
  max-width: 520px;
}

.bg-gray {
  background-color: #f7f7f7;
}

.sideimg {
  max-width: 450px;
}

.text-wrap {
  max-width: 450px;
}

.content {
  background-color: white;
  width: calc(100% / 3);
  margin: 2rem;
  padding: 1.5rem;
  border-radius: 3px;
  box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.35);
}

.submitBtn input {
  background-color: #ff9300;
  color: white;
  border: none;
  border-radius: 50px;
  padding: 1rem 2.5rem;
}

.submitBtn input:hover {
  background-color: #ef9837;
}

@media screen and (max-width: 987px) {
  .content {
    margin: 0.5rem;
    padding: 1rem;
  }
}

@media screen and (max-width: 767px) {
  .nav {
    display: none;
  }
  .logo {
    margin: 0 auto;
  }
  .logo img {
    padding: 0.3rem;
  }
  .sideimg {
    max-width: 100%;
  }

  .title-wrap,
  .text-wrap {
    margin: 0 auto;
  }

  .content {
    width: 100%;
    margin: 1rem 0;
    padding: 1rem;
  }
}

@media screen and (max-width: 540px) {
  .submitBtn input {
    padding: 1rem 5rem;
  }
}