@import url('https://fonts.googleapis.com/css2?family=Muli&display=swap');
:root {
    --blue:#09ACFE;
    --red: #CD086F;
    --white: #e0e0e0;
    --yellow:#FFD257;
    --background-1:#121212;
    --background-2:#000000;
}
html{
    font-size: 10px;
}
* {
    box-sizing: border-box;
}
body{
    background: var(--background-2);
    font-family: 'Muli  ', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;
}
.container {
    text-align: center;
}
.progress-container {
    color: var(--white);
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-bottom: 3rem;
    max-width: 100%;
    width: 34.5rem;
}
.progress-container::before {
    content: "";
    background: var(--white);
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY();
    height: 0.4rem;
    width: 100%;
    z-index: -1;
    transition: 0.4s ease;
}
.progress {
    background: var(--blue);
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY();
    height: 0.4rem;
    width: 0%;
    z-index: -1;
    transition: 0.4s ease;
    box-shadow: inset 0 0 0.7rem 0 var(--blue),
    0 0 0.7rem 0 var(--blue);
}
.circle {
    background-color: #fff;
    color: #999;
    border-radius: 50%;
    height: 3rem;
    width: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 0.3rem solid var(--white);
    transition: .4s ease;
}
.circle.active {
    border-color: var(--blue);
    box-shadow: 0 0 .8rem var(--blue);
}
.btn:active{
    transform: scale(0.98);
}
.btn:focus{
    outline: none;
}
/* ----------------- general button---------------- */
.btn{
    position: relative;
    color:var(--white);
    cursor: pointer;
    font-family: inherit;
    font-size: 1.4rem;
    width: 8rem;
    border-radius: 0.5rem;
    padding: 1rem;
    background: transparent;
    border: 2px solid var(--blue);
    margin-left: 2rem;
    text-shadow: 0 0 0.7rem var(--white);
    box-shadow: inset 0 0 0.7rem 0 var(--blue),
    0 0 0.7rem 0 var(--blue);
}
.btn:hover{
    background: var(--blue);
    text-shadow: none;
    color:var(--background-2);
}
/* -------------------- before button------------------ */
.btn::before{
    background-color: var(--blue);
    pointer-events: none;
    content: "";
    position: absolute;
    background: var(--blue);
    top: 130%;
    left: 0;
    width: 100%;
    height: 100%;
    transform: perspective(1em) rotateX(40deg) scale(1, 0.25);
    filter: blur(3em);
    opacity: 0.7;
}
.btn:disabled:hover::before,
.btn:disabled:focus::before, 
.btn:hover::before,
.btn:focus::before {
    opacity: 1;
}
.btn:disabled::before{
    background-color: var(--white);
    pointer-events: none;
    content: "";
    position: absolute;
    background: var(--white);
    top: 130%;
    left: 0;
    width: 100%;
    height: 100%;
    transform: perspective(1em) rotateX(40deg) scale(1.25, 0.25);
    filter: blur(3em);
    opacity: 0.7;
}
/* --------------------After button----------------------- */
.btn::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    box-shadow: 0 0 2em 0.01em var(--blue); 
    opacity: 0;
    background-color:var(--blue) ;
    transition: opacity 100ms linear;
    z-index: -1;
}

.btn:focus::after,
.btn:hover::after{
    opacity: 1;
}

.btn:disabled::after{
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    box-shadow: 0 0 2em 0.01em var(--white); 
    opacity: 0;
    background-color:var(--white) ;
    transition: opacity 100ms linear;
    z-index: -1;
}

.btn:disabled:hover::after {
    opacity: 1;
}


/* ------------------disabled button------------------- */

.btn:disabled {
    color: var(--white);
    cursor: not-allowed;
    border: 2px solid var(--white);
    text-shadow: 0 0 0.7rem var(--white);
    box-shadow: inset 0 0 0.7rem 0 var(--white),
    0 0 0.7rem 0 var(--white);
}
.btn:disabled:hover{
    background: var(--white);
    text-shadow: none;
    color:var(--background-2);
}