:root {
  --dark-blue: #04254d;
  --light-blue: #0087ff;
  --dark-green: #0ca678;
  --light-green: #12b886;
  --text-black: #27272a;
  --text-white: #fff;
}

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

html {
  font-size: 62.5%;
}

body {
  font-family: "Inter", sans-serif;
  font-size: 1.8rem;
  color: var(--text-white);
  background-image: linear-gradient(
    145deg,
    rgba(45, 163, 255, 1) 10%,
    rgba(182, 220, 255, 1) 50%,
    rgba(255, 255, 255, 1) 100%
  );
}

.content-container {
  max-width: 90rem;
  margin: 2.4rem auto;
  padding: 0 3.2rem;

  display: flex;
  flex-direction: column;
  gap: 2.4rem;
}

textarea,
button,
.input-control {
  font-family: inherit;
  font-size: inherit;
}

/* HEADER */
header {
  color: var(--text-black);

  display: flex;
  justify-content: space-around;
  align-items: center;
}

.header-text {
  flex: 0.8;
  margin-top: 9rem;
}

#title {
  font-size: 7.4rem;
  font-family: "Syne", sans-serif;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}

#description {
  font-size: 2rem;
  font-style: italic;
  line-height: 1.6;
}

.header-illustration {
  width: 40%;
}

/* FORM */
#survey-form {
  background-color: rgba(4, 37, 77, 0.9);
  padding: 4.8rem;
  border-radius: 1.2rem;
  box-shadow: 0 1.2rem 2.4rem rgba(0, 0, 0, 0.2);

  display: flex;
  flex-direction: column;
  gap: 3.2rem;
}

label,
.input-group p {
  font-size: 2rem;
  margin-bottom: 0.8rem;
}

label {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* FILL INPUT */
.input-control {
  display: block;
  width: 100%;
  height: 4.8rem;
  padding: 1.2rem;
  border-radius: 0.4rem;
}

/* RADIO & CHECKBOX */
.input-radio,
.input-checkbox {
  width: 2rem;
  height: 2rem;
}

/* TEXTAREA */
.input-textarea {
  display: block;
  width: 100%;
  height: 15rem;
  padding: 1.2rem;
  resize: vertical;
}

/* SUBMIT */
button {
  padding: 1.6rem 3.2rem;
  text-transform: uppercase;
  color: var(--text-white);
  background-color: var(--light-green);
  border: none;
  border-radius: 0.8rem;
  cursor: pointer;
  transition: all 0.4s;
}

button:hover {
  background-color: var(--dark-green);
}

/* FOOTER */
footer {
  display: flex;
  justify-content: center;
  gap: 8rem;
}

.footer-link:link .footer-icon,
.footer-link:visited .footer-icon {
  width: 4.8rem;
  height: 4.8rem;
  color: var(--dark-blue);
  transition: all 0.4s;
}

.footer-link:hover .footer-icon,
.footer-link:active .footer-icon {
  color: var(--light-blue);
}

/* MEDIA QUERY */
@media (max-width: 64em) {
  html {
    font-size: 56.25%;
  }
}

@media (max-width: 48em) {
  html {
    font-size: 50%;
  }
}

@media (max-width: 40em) {
  html {
    font-size: 43.75%;
  }

  .content-container {
    padding: 0 1.6rem;
    margin-top: 4.8rem;
  }

  header {
    text-align: center;
    flex-direction: column;
  }

  .header-text {
    margin-top: 0;
  }

  #description {
    width: 70%;
    margin: 0 auto;
  }
}