style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400&display=swap');

:root {
  --primary-color: #212529;
  --secondary-color: #343a40;
  --header-text-color: #fff;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--primary-color);
  font-family: 'Poppins', sans-serif;
  margin: 0;
  overflow-x: hidden;
}

header {
  width: 100vw;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  background-color: var(--secondary-color);
  padding: 15px 30px;
  box-sizing: border-box;
}

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

.nav h3 {
  margin: 0;
}

.nav h3 a{
  text-decoration: none;
  margin: 0 10px;
  font-size: 2rem;
  color: #c77dff;
}

#short-brand {
  display: none;
}

#form{
  width: 25%;
  min-width: 250px;
}

.search {
  width: 100%;
  background-color: transparent;
  border: 2px solid var(--primary-color);
  border-radius: 50px;
  font-family: inherit;
  font-size: 1rem;
  padding: 8px 20px; 
  color: #fff;
}

.search::placeholder {
  color: var(--header-text-color);
}

.search:focus {
  outline: none;
  background-color: var(--primary-color);
}

main {
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
}

.movie {
  width: 300px;
  margin: 1rem;
  background-color: var(--secondary-color);
  box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
  border-radius: 3px;
}

.movie img {
  width: 100%;
}

.movie-info {
  color: #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem 1rem;
  letter-spacing: 0.5px;
}

.movie-info h3 {
  margin-top: 0;
}

.movie-info span {
  background-color: var(--primary-color);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-weight: bold;
}

.movie-info span.green {
  color: lightgreen;
}

.movie-info span.orange {
  color: orange;
}

.movie-info span.red {
  color: red;
}

.overview {
  background-color: #fff;
  padding: 2rem;
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  max-height: 100%;
  transform: translateY(101%);
  transition: 0.3s ease-in;
}

.movie:hover .overview {
  transform: translateY(0);
}

@media screen and (max-width: 550px){
  header{
    padding: 15px 20px;
  }

  #short-brand{
    display: inline-block;
    margin-left: 5%;
  }

  #full-brand{
    display: none;
  }

  #form {
    min-width: 180px;
  }
}

@media screen and (max-width: 300px) {
  .nav h3 a{
    font-size: 1.5rem;
  }

  #form{
    min-width: 120px;
  }
}