style.css

@import url('https://fonts.googleapis.com/css2?family=Piazzolla&display=swap');

:root {
  --primary-color: #ea3131;
  --border-radiuse: 15px;
}

html {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Piazzolla, 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  color: rgba(214, 210, 206, 0.938);
  background-color: var(--primary-color);
  background-image: url("data:image/svg+xml,%3Csvg width='42' height='44' viewBox='0 0 42 44' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='Page-1' fill='none' fill-rule='evenodd'%3E%3Cg id='brick-wall' fill='%23494949' fill-opacity='0.4'%3E%3Cpath d='M0 0h42v44H0V0zm1 1h40v20H1V1zM0 23h20v20H0V23zm22 0h20v20H22V23z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  }

h1 {
  margin: 20px auto;
  background: rgba(0, 0, 0, 0.5);
  width: 280px;
  text-align: center;
  border-radius: var(--border-radiuse);
  padding: 10px;
  color: rgba(241, 208, 19, 0.938);
  cursor: pointer;
  text-transform: uppercase;
  user-select: none;
}

h1:hover {
  background: rgba(0, 0, 0, 0.8);
}

/* Bookmarks */
.container {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}

.item {
  background: rgba(0, 0, 0, 0.5);
  margin: 10px;
  padding: 20px;
  border-radius: var(--border-radiuse);
}

.item:hover {
  background: rgba(0, 0, 0, 0.7);
}

a {
  text-decoration: none;
  color: #fff;
  text-transform: uppercase;
  font-size: 1.3rem;
}

a:link, a:visited {
  text-decoration: none;
  color: #fff;
}

a:hover, a:active {
  text-decoration: underline;
}

.fa-times {
  float: right;
  cursor: pointer;
  z-index: 2;
}

.name {
  margin-top: 20px;
  margin-right: 20px;
}

.name img {
  height: 20px;
  width: 20px;
  vertical-align: sub;
  margin-right: 5px;
}

/* Modal */
.modal-container {
  background: rgba(0, 0, 0, 0.7);
  display: none;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

.show-modal {
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal {
  background: white;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
  max-width: 95%;
  width: 500px;
  animation: modalopen 1.5s;
}

@keyframes modalopen {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.close-icon {
  float: right;
  color: white;
  font-size: 24px;
  position: relative;
  top: 13px;
  right: 13px;
  cursor: pointer;
}

.modal-header {
  background: var(--primary-color);
  color: white;
  padding: 15px;
}

h3 {
  margin: 0;
}

.modal-content {
  padding: 20px;
  background: whitesmoke;
}

/* Form */
.form-group {
  height: 55px;
}

.form-input {
  width: 97%;
  padding: 5px;
  border: 2px solid var(--primary-color);
  border-radius: var(--border-radiuse);
  display: block;
  outline: none;
}
.form-label {
  color: var(--primary-color);
  display: block;
}
button {
  cursor: pointer;
  color: white;
  background: var(--primary-color);
  border-radius: var(--border-radiuse);
  border: none;
  padding: 5px;
  height: 30px;
  width: 100px;
  margin-top: 10px;
}
button:hover {
  filter: brightness(110%);
}
button:focus {
  outline: none;
}

/* Media Query: Large Smartphone */
@media only screen and (max-width: 600px) {
  .container {
    flex-direction: column;
  }
}