input {
    color: #171717;
}

.search-bar {
    display: flex;
}

    .search-bar input,
    .search-btntk,
    .search-btntk:before,
    .search-btntk:after {
        transition: all 0.25s ease-out;
    }


    .inputtest[type=text]:focus {
        width: 300px;
    }
    .search-bar input,
    .search-btntk {
        width: 3em;
    }

        .search-bar input:invalid:not(:focus),
        .search-btntktk {
            cursor: pointer;
        }

        .search-bar,
        .search-bar input:focus,
        .search-bar input:valid {
            width: 100%;
        }

            .search-bar input:focus,
            .search-bar input:not(:focus) + .search-btntk:focus {
                outline: transparent;
            }

.search-bar {
    justify-content: flex-end;
    margin-top: -5px;
}

    .search-bar input {
        background: transparent;
        border-radius: 1.5em;
        box-shadow: 0 0 0 0.4em #171717 inset;
        padding: 0.8em;
        transform: translate(0.5em,0.5em) scale(0.5);
        transform-origin: 100% 0;
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
    }

        .search-bar input::-webkit-search-decoration {
            -webkit-appearance: none;
        }

        .search-bar input:focus,
        .search-bar input:valid {
            background: #fff;
            border-radius: 0.375em 0 0 0.375em;
            box-shadow: 0 0 0 0.1em #d9d9d9 inset;
            transform: scale(1);
        }

.search-btntk {
    background: #171717;
    border-radius: 0 0.75em 0.75em 0 / 0 1.5em 1.5em 0;
    padding: 0.75em;
    position: relative;
    transform: translate(0.25em,0.25em) rotate(45deg) scale(0.25,0.125);
    transform-origin: 0 50%;
}

    .search-btntk:before,
    .search-btntk:after {
        content: "";
        display: block;
        opacity: 0;
        position: absolute;
    }

    .search-btntk:before {
        border-radius: 50%;
        box-shadow: 0 0 0 0.2em #f1f1f1 inset;
        top: 0.75em;
        left: 0.75em;
        width: 1.2em;
        height: 1.2em;
    }

    .search-btntk:after {
        background: #f1f1f1;
        border-radius: 0 0.25em 0.25em 0;
        top: 51%;
        left: 51%;
        width: 0.75em;
        height: 0.25em;
        transform: translate(0.2em,0) rotate(45deg);
        transform-origin: 0 50%;
    }

    .search-btntk span {
        display: inline-block;
        overflow: hidden;
        width: 1px;
        height: 1px;
    }

/* Active state */
.search-bar input:focus + .search-btntk,
.search-bar input:valid + .search-btntk {
    background: #808080;
    border-radius: 0 0.375em 0.375em 0;
    transform: scale(1);
}

    .search-bar input:focus + .search-btntk:before,
    .search-bar input:focus + .search-btntk:after,
    .search-bar input:valid + .search-btntk:before,
    .search-bar input:valid + .search-btntk:after {
        opacity: 1;
    }

    .search-bar input:focus + .search-btntk:hover,
    .search-bar input:valid + .search-btntk:hover,
    .search-bar input:valid:not(:focus) + .search-btntk:focus {
        background: #2f4375;
    }

    .search-bar input:focus + .search-btntk:active,
    .search-bar input:valid + .search-btntk:active {
        transform: translateY(1px);
    }
@media (max-width: 480px) {
    .search-bar {
        max-width: 26em;
    }
input[type=text]:focus {
  width: 150px;
}
    }
        .search-bar,
        .search-bar input:focus,
        .search-bar input:valid {
            width: 100%;
        }
}