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

:root {
  --ff-primary: 'Staatliches', cursive;
  --ff-secondary: 'Poppins', sans-serif;

  --color-primary: #535971; 
  --color-secondary: #ff5374;
  --gray-01: #F8F8F8;
  --gray-02: #E6E6E6;
  --color-label: #4E4958;

  font-size: 6.25%;
}

body {
  font-size: 16rem;
  background-color: var(--gray-02);
}

#page {
  width: 750px;
  margin: auto;
}

header::before {
  content: '';
  display: inline-block;
  width: 100%;
  height: 436rem;
  background-color: var(--color-primary);
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

header {
  margin: 140rem 0 48rem;
  width: 400rem;
  color: var(--gray-01);
}

header h1 {
  font-family: var(--ff-primary);
  font-size: 48rem;
  font-weight: 400;
  margin-bottom: 18rem;
}

header p {
  font-family: var(--ff-secondary);
  font-size: 20rem;
  line-height: 30rem;
  font-weight: 400;
}

form {
  background-color: white;
  padding: 64rem;
  border-radius: 20rem 20rem 0 0;
}

fieldset {
  border: none;
}

fieldset legend {
  color: var(--color-primary);
  font-family: var(--ff-primary);
  font-size: 24rem;
  line-height: 34rem;
  font-weight: 400;
  border-bottom: 1px solid var(--gray-02);
  width: 100%;
  padding-bottom: 8rem;
  margin-bottom: 32rem;
}

fieldset fieldset legend {
  border: none;
  margin-bottom: 12px;
  font-size: 20rem;
  line-height: 34rem;
}

.col-2 {
  display: flex;
  gap: 24rem;
}

/* .col-2 .col-2 { */
/*   gap: 10rem; */
/* } */

.input-wrapper {
  display: flex;
  flex-direction: column;
  margin-bottom: 16rem;
  flex-grow: 1;
}

.input-wrapper label {
  font-family: var(--ff-secondary);
  font-size: 14rem;
  line-height: 24rem;
  margin-bottom: 8rem;
  color: var(--color-label);
}

.input-wrapper input {
  background-color: var(--gray-01);
  height: 56rem;
  border: 2px solid var(--gray-02);
  border-radius: 8px;
  font-family: var(--ff-secondary);
  font-size: 16rem;
  padding: 8rem;
  width: 100%;
}

.input-wrapper span {
  color: var(--color-label);
  opacity: 0.5;
  font-size: 12rem;
  margin-left: 5rem;
}

/* input:required:focus { */
/*   color: brown; */
/*   outline: 2px solid brown; */
/* } */

input:focus-visible:not(:placeholder-shown):invalid,
input:required:focus-visible:not(:placeholder-shown):invalid {
  outline: none;
  color: red;
  border: 2px solid red;
}

input:not(:placeholder-shown):invalid:not([type="date"]):not([type="time"]) {
  outline: none;
  color: red;
  border: 2px solid red;
}

input[type="date"]:focus, 
input[type="time"]:focus {
  outline: none;
  color: black !important;
  border: 2px solid black !important;
  user-select: none;
} 

input:not(:placeholder-shown):valid {
  outline: none;
  color: green;
  border-color: green;
}

/* input:required:not(:placeholder-shown):invalid  { */
/*   outline: 2px solid red; */
/*   color: red; */
/* } */

/* input:required:invalid { */
/*   color: red; */
/*   outline: 2px solid red; */
/* } */

input::placeholder {
  color: transparent;
}

.uppercase {
  text-transform: uppercase;
}

footer {
  height: 160rem;
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 5px;
  border-radius: 0 0 20rem 20rem;
}

button {
  background-color: var(--color-secondary);
  border: none;
  width: 600rem;
  height: 56rem;
  border-radius: 20rem;
  color: var(--gray-01);
  font-family: var(--ff-primary);
  font-size: 20rem;
}

button:hover {
  filter: brightness(0.9);
  cursor: pointer;
  outline: 2px solid var(--gray-01);
}