/* blocks */

.styled {
    border-radius: 10px;
    backdrop-filter: blur(5px);
    background: #ffffff9e;
}

.mb {
    box-shadow: 1px 1px 15px 0 #dae2eb;
    padding: 15px 25px;
    margin-bottom: 25px;
    border-radius: 15px;
}



.inverted {
    background: rgb(0,135,190);
    background: radial-gradient(circle, rgb(0 86 121) 0%, rgb(0 43 84) 18%, rgba(10,34,70,1) 100%);
    box-shadow: 1px 1px 15px 0 #143c69cc;
    padding: 25px;
    margin-bottom: 15px;
    border-radius: 15px;
    color: #fff;
}



/* bubbly button */

.bubbly-button {
    display: inline-block;
    padding: 11px 20px;
    background-color: #ff0081;
    color: #fff;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    position: relative;
    transition: transform ease-in 0.1s, box-shadow ease-in 0.25s;
    box-shadow: 0 2px 25px rgba(255, 0, 130, 0.5);
}
.bubbly-button:focus {
    outline: 0;
}
.bubbly-button:before, .bubbly-button:after {
    position: absolute;
    content: "";
    display: block;
    width: 140%;
    height: 100%;
    left: -20%;
    z-index: -1000;
    transition: all ease-in-out 0.5s;
    background-repeat: no-repeat;
}
.bubbly-button:before {
    display: none;
    top: -75%;
    background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 20%, #ff0081 20%, transparent 30%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
    background-size: 10% 10%, 20% 20%, 15% 15%, 20% 20%, 18% 18%, 10% 10%, 15% 15%, 10% 10%, 18% 18%;
}
.bubbly-button:after {
    display: none;
    bottom: -75%;
    background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
    background-size: 15% 15%, 20% 20%, 18% 18%, 20% 20%, 15% 15%, 10% 10%, 20% 20%;
}
.bubbly-button:active {
    transform: scale(0.9);
    background-color: #e60074;
    box-shadow: 0 2px 25px rgba(255, 0, 130, 0.2);
}
.bubbly-button.animate:before {
    display: block;
    animation: topBubbles ease-in-out 0.75s forwards;
}
.bubbly-button.animate:after {
    display: block;
    animation: bottomBubbles ease-in-out 0.75s forwards;
}

@keyframes topBubbles {
    0% {
        background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;
    }
    50% {
        background-position: 0% 80%, 0% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 90% 30%;
    }
    100% {
        background-position: 0% 70%, 0% 10%, 10% 30%, 20% -10%, 30% 20%, 22% 40%, 50% 40%, 65% 10%, 90% 20%;
        background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
    }
}
@keyframes bottomBubbles {
    0% {
        background-position: 10% -10%, 30% 10%, 55% -10%, 70% -10%, 85% -10%, 70% -10%, 70% 0%;
    }
    50% {
        background-position: 0% 80%, 20% 80%, 45% 60%, 60% 100%, 75% 70%, 95% 60%, 105% 0%;
    }
    100% {
        background-position: 0% 90%, 20% 90%, 45% 70%, 60% 110%, 75% 80%, 95% 70%, 110% 10%;
        background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
    }
}

/* bubbly button end */

/* buttons */

.btn {
    display: flex;
    align-items: center;
    text-align: center;
    padding: 5px 20px;
    color: #fff;
    cursor: pointer;
    opacity: .8;
    transition: all ease-in 0.1s;
    position: relative;
    border-radius: 5px;
}

.btn-primary {
    background: #00C9FF;
    background: linear-gradient(to right, #0bdc21, #00c5ff);
    height: 46px;
}

.btn-sec {
    background: #00C9FF;
    background: linear-gradient(to right, #ffd006, #ff58d4);
    height: 46px;
}

.btn:hover {
    opacity: 1;
}

.btn:active {
    transform: scale(0.95);
}

@media screen and (max-width: 800px) {
    .bubbly-button {
        padding: 11px 14px;
    }
    .btn-primary {
        height: 40px;
        font-size: 13px;
        padding: 4px 15px;
    }
    .mb {
        padding: 10px;
        margin-bottom: 15px;
    }
}

@media screen and (max-width: 400px) {
    .btn-primary {
        padding: 3px 15px;
    }
}

/* buttons end */

/* scroll */

.scroll::-webkit-scrollbar-thumb {
    background: #00C9FF;
    background: linear-gradient(45deg, #0bdc21, #00c5ff);
    border: 3px solid transparent;
    border-radius: 8px;
    background-clip: padding-box;
}

.scroll::-webkit-scrollbar {
    width: 12px;
}

/* scroll end */

/* table of contents */

.contents-list li {
    list-style-type: decimal;
}


.contents-list li a {
    color: var(--accent-color);
    font-weight: 400;

}

.contents-list li a:hover {
    text-decoration: underline;
}