style.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat&family=Poppins:ital,wght@0,200;0,300;0,400;0,500;1,500&family=Ubuntu:ital,wght@0,400;0,500;0,700;1,500;1,700&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
}

body{
    height: 100%;
    width: 100%;
}

.header{
    min-height: 60vh;
    background: url("./bg-image.jpg");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    color: white;
    position: relative;
}

.container{
    max-width: 1200px;
    width: 90%;
    margin: auto;
}

nav{
    min-height: 8vh;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

a{
    color: white;
}

.container h1{
    font-size: 2.5rem;
}

.nav-items{
    width: 40%;
    display: flex;
    justify-content: space-between;
}

.headline{
    position: absolute;
    transform: translate(-50%,-50%);
    top: 50%;
    left: 50%;
    text-align: center;
}

.headline h2{
    font-size: 2.5rem;
}

.btn{
    display: inline-block;
    outline: none;
    border: none;
    cursor: pointer;
}

.btn-headline{
    color: black;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    margin-top: 15px;
}

.todo{
    margin-top: 5rem;
    text-align: center;
    font-size: 2rem;
}

.form-todo{
    min-height: 5vh;
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
}
.form-todo input{
    min-height: 100%;
}
.form-todo input[type="text"]{
    width: 78%;
    padding: 0.8rem;
    font-size: 1rem;
}
.form-todo input[type="submit"]{
    width: 20%;
    background: rgb(44, 55, 63);
    color: white;
    font-weight: bold;
}

.tasks{
    display: flex;
    justify-content: space-between;
    background-color: rgb(53, 50, 50);
    color: white;
    margin: 20px;
    text-align: center;
    padding: 3px;
    border-radius: 10px;
}
.tasks p{
    font-size: 1.3rem;
    padding: 12px;
}
.submit{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 10px;
}
.submit button{
    font-size: 1rem;
    background-color: beige;
    font-weight: 600;
    border-radius: 7px;
    padding: 7px;
    cursor: pointer;
}

.signup{
    margin: 5rem auto;
    text-align: center;
    background: rgb(240, 240, 240);
    border-radius: 10px;
    padding: 1rem;
}

.signup-form{
    max-width: 800px;
    width: 95%;
    margin: auto;
    text-align: left;
}

.signup-form label{
    display: block;
}
.signup-form input{
    display: block;
    width: 100%;
    /* text-align: center; */
    padding: 0.5rem;
}

.form-group{
    margin-top: 1.5rem;
}

.signup-form textarea{
    width: 100%;
    padding: 0.5rem;
    font-size: 1rem;
}

.btn-signup{
    background: rgb(44, 55, 63);
    color: white;
    padding: 0.8rem 1.2rem;
    display: block;
    margin: auto;
    margin-top: 1rem;
    font-size: 1rem;
}



/* CSS for Preloader */

/**************/
#preloader{
    background-color: #212121;
    width: 100%;
    height: 100vh;
    position: fixed;
    z-index: 10;

    display: flex;
    align-items: center;
    justify-content: center;
}


.loader {
    position: relative;
    width: 120px;
    height: 90px;
    margin: 0 auto;
  }
  
  .loader:before {
    content: "";
    position: absolute;
    bottom: 30px;
    left: 50px;
    height: 30px;
    width: 30px;
    border-radius: 50%;
    background: #2a9d8f;
    animation: loading-bounce 0.5s ease-in-out infinite alternate;
  }
  
  .loader:after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    height: 7px;
    width: 45px;
    border-radius: 4px;
    box-shadow: 0 5px 0 #f2f2f2, -35px 50px 0 #f2f2f2, -70px 95px 0 #f2f2f2;
    animation: loading-step 1s ease-in-out infinite;
  }
  
  @keyframes loading-bounce {
    0% {
      transform: scale(1, 0.7);
    }
  
    40% {
      transform: scale(0.8, 1.2);
    }
  
    60% {
      transform: scale(1, 1);
    }
  
    100% {
      bottom: 140px;
    }
  }
  
  @keyframes loading-step {
    0% {
      box-shadow: 0 10px 0 rgba(0, 0, 0, 0),
              0 10px 0 #f2f2f2,
              -35px 50px 0 #f2f2f2,
              -70px 90px 0 #f2f2f2;
    }
  
    100% {
      box-shadow: 0 10px 0 #f2f2f2,
              -35px 50px 0 #f2f2f2,
              -70px 90px 0 #f2f2f2,
              -70px 90px 0 rgba(0, 0, 0, 0);
    }
  }