@import url('https://fonts.googleapis.com/css?family=Poppins:200i,400&display=swap');

:root {
  --color-white         : #f3f3f3;
  --color-darkblue      : #1b1b32;
  --color-darkblue-alpha: rgba(27, 27, 50, 0.7);
  --color-green         : #37af65;
}

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

body {
  font-family: 'Poppins', sans-serif;
  font-size  : 1rem;
  font-weight: 400;
  line-height: 1.4;
  color      : var(--color-white);
  margin     : 0;
}

body::before {
  content            : '';
  position           : fixed;
  top                : 0;
  left               : 0;
  height             : 100%;
  width              : 100%;
  z-index            : -1;
  background         : var(--color-darkblue);
  background-image   : url("../img/cofre.jpeg");
  background-size    : cover;
  background-repeat  : no-repeat;
  background-position: center;
}

h1 {
  font-weight: 400;
  line-height: 1.2;
}

p {
  font-size: 1.125rem;
}

h1,
p {
  margin-top   : 0;
  margin-bottom: 0.5rem;
}

label {
  display      : flex;
  align-items  : center;
  font-size    : 1.125rem;
  margin-bottom: 0.5rem;
}

input,
button,
select,
textarea {
  margin     : 0;
  font-family: inherit;
  font-size  : inherit;
  line-height: inherit;
}

button {
  border: none;
}

.container {
  width : 100%;
  margin: 3.125rem auto 0 auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

.header {
  padding      : 0 0.625rem;
  margin-bottom: 1.875rem;
}

.description {
  font-style : italic;
  font-weight: 200;
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.4);
}

.clue {
  margin-left: 0.25rem;
  font-size  : 0.9rem;
  color      : #e4e4e4;
}

.text-center {
  text-align: center;
}

/* form */

form {
  background   : var(--color-darkblue-alpha);
  padding      : 2.5rem 0.625rem;
  border-radius: 0.25rem;
}

@media (min-width: 480px) {
  form {
    padding: 2.5rem;
  }
}

.form-group {
  margin : 0 auto 1.25rem auto;
  padding: 0.25rem;
}

.form-control {
  display         : block;
  width           : 100%;
  height          : 2.375rem;
  padding         : 0.375rem 0.75rem;
  color           : #495057;
  background-color: #fff;
  background-clip : padding-box;
  border          : 1px solid #ced4da;
  border-radius   : 0.25rem;
  transition      : border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  border-color: #80bdff;
  outline     : 0;
  box-shadow  : 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.input-radio,
.input-checkbox {
  display     : inline-block;
  margin-right: 0.625rem;
  min-height  : 1.25rem;
  min-width   : 1.25rem;
}

.input-textarea {
  min-height: 120px;
  width     : 100%;
  padding   : 0.625rem;
  resize    : vertical;
}

.submit-button {
  display      : block;
  width        : 100%;
  padding      : 0.75rem;
  background   : var(--color-green);
  color        : inherit;
  border-radius: 2px;
  cursor       : pointer;
}