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

:root {
  --red: hsl(0, 100%, 74%);
  --green: hsl(154, 59%, 51%);
  --purple: hsl(248, 32%, 49%);
  --dark: hsl(249, 10%, 26%);
  --gray: hsl(246, 25%, 77%);
}

body {
  font-family: 'Poppins', sans-serif;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  background: var(--red) url("images/bg-intro-desktop.png") no-repeat center;
  background-size: cover;
}

.wrapper {
  max-width: 1110px;
  display: flex;
  gap: 4rem;
  align-items: center;
  color: white;
}

.intro-text {
  flex: 1;
}

.intro-text h1 {
  font-size: 3rem;
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.intro-text p {
  font-weight: 400;
  line-height: 1.6;
}

.signup-section {
  flex: 1;
}

.trial-box {
  background: var(--purple);
  padding: 1rem;
  text-align: center;
  border-radius: 0.625rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 0 rgba(0,0,0,0.15);
}

.trial-box strong {
  font-weight: 700;
}

form {
  background: white;
  padding: 2.5rem;
  border-radius: 0.625rem;
  box-shadow: 0 8px 0 rgba(0,0,0,0.15);
}

.form-control {
  position: relative;
  margin-bottom: 1.25rem;
}

input {
  width: 100%;
  padding: 0.9rem 1.25rem;
  border-radius: 5px;
  border: 1px solid var(--gray);
  font-weight: 600;
  color: var(--dark);
}

input:focus {
  outline: 2px solid var(--purple);
  border-color: transparent;
}

button {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: 5px;
  background: var(--green);
  color: white;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 4px 0 hsl(154, 59%, 45%);
  transition: 0.2s ease;
}

button:hover {
  opacity: 0.9;
}

.terms {
  font-size: 0.75rem;
  text-align: center;
  margin-top: 1rem;
  color: var(--gray);
}

.terms span {
  color: var(--red);
  font-weight: 600;
}

.error input {
  border: 2px solid var(--red);
}

.error-icon {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-100%);
  display: none;
}

small {
  color: var(--red);
  font-size: 0.75rem;
  text-align: right;
  display: none;
  margin-top: 0.4rem;
}

.error .error-icon,
.error small {
  display: block;
}

@media (max-width: 768px) {

  body {
    background: var(--red) url("images/bg-intro-mobile.png") no-repeat center;
    background-size: cover;
  }

  .wrapper {
    flex-direction: column;
    text-align: center;
  }

  .intro-text h1 {
    font-size: 2rem;
  }
}