* {
    margin: 0;
    padding: 0;
}
body {
    font-family: Helvetica;
    background: #eee;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    padding-top: 1px;
}
.logo img {
    width: 70px;
    margin-left: 30px;
    margin-top: 30px;
}
.login_area {
    width: 90%;
    max-width: 1400px;
    height: 70vh;
    margin: 4em auto;
    background: #fafafa;
    box-shadow: rgba(0,0,0,0.14902) 0px 1px 1px 0px,rgba(0,0,0,0.09804) 0px 1px 2px 0px;
    display: flex;
    border-radius: 20px;
}
.cover_explain_area {
    width: 300px;
}
.login_form_area {
    position: relative;
}
.login_form_area.login_area_each {
    width: 100%;
}
/* Left Cover Area */
.cover_explain_area {
    background-color: #EAECF9;
    border-radius: 20px 0 0 20px;
    overflow: hidden;
}
.cover_image {
    height: 70%;
}
.cover_image img {
    height: 100%;
    width: 300px;
    object-position: center;
    object-fit: cover;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    pointer-events: none;
    -webkit-user-drag: none;
}
.insas_explain_area {
    width: 100%;
    height: 30%;
    position: relative;
}
.insas_explain {
    width: 100%;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: black;
}
.insas_explain h2 {
    font-size: 25px;
    margin-top: 20px;
}
.insas_explain h3 {
    font-size: 16px;
    font-weight: normal;
    font-family: "Noto Sans", sans-serif;
}
.insas_explain p {
    font-size: 15px;
    margin-top: 20px;
    margin-bottom: 40px;
}
/* END */

/* Right Login Form Area */
.login_form_area form {
    padding: 40px;
}
.login_form_area_title {
    font-size: 22px;
    color: black;
    margin-top: -10px;
}
.login_form_area_subtitle {
    font-size: 16px;
    color: black;
    text-align: center;
    margin-top: 5px;
    font-family: "Noto Sans", sans-serif;
}
.login_form_container {
    display: flex;
    justify-content: center;
    position: relative;
}
/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(74, 84, 220, 0.9);
    color: white;
    padding: 10px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-family: "Noto Sans", sans-serif;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    z-index: 100;
    user-select: none;
    cursor: pointer;
}
.scroll-indicator.hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
}
.scroll-indicator .material-symbols-outlined {
    font-size: 16px;
    animation: bounce 1.5s infinite;
}

.login_form_each {
    width: 50%;
    max-width: 700px;
    height: calc(70vh - 200px);
    overflow: scroll;
    padding-top: 30px;
    overflow-y: scroll;
}
.login_form_each_left {
    padding-right: 20px;
}
.login_form_each_right {
    padding-left: 20px;
    position: relative;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-3px);
    }
    60% {
        transform: translateY(-2px);
    }
}
.group { 
    position: relative; 
    margin-bottom: 20px; 
}
.login_form_area .group input {
    font-size: 18px;
    padding: 10px 10px 10px 5px;
    display: block;
    background: #fafafa;
    color: #636363;
    width: 100%;
    border: none;
    border-radius: 0;
    border-bottom: 1px solid #757575;
    box-sizing: border-box;
}
.login_form_area .group input:focus {
    outline: none;
}
.login_form_area .group label {
    color: #353535; 
    font-size: 18px;
    font-weight: normal;
    position: absolute;
    left: 5px;
    top: 10px;
    transition: all 0.2s ease;
}
.login_form_area .group input:focus ~ label, .login_form_area .group input.used ~ label {
    top: -20px;
    transform: scale(.75); left: -2px;
    color: #4a89dc;
}
.login_form_area .bar {
    position: relative;
    display: block;
    width: 100%;
}
.login_form_area .bar:before, .login_form_area .bar:after {
    content: '';
    height: 2px; 
    width: 0;
    bottom: 1px; 
    position: absolute;
    background: #4a54dc; 
    transition: all 0.2s ease;
}
.login_form_area .bar:before {
    left: 50%;
}
.login_form_area .bar:after {
    right: 50%;
}
.login_form_area input:focus ~ .bar:before, .login_form_area input:focus ~ .bar:after {
    width: 50%;
}
.login_form_area .highlight {
    position: absolute;
    height: 60%; 
    width: 100px; 
    top: 25%; 
    left: 0;
    pointer-events: none;
    opacity: 0.5;
}
.login_form_area input:focus ~ .highlight {
    animation: inputHighlighter 0.3s ease;
}
@keyframes inputHighlighter {
    from { background: #4a89dc; }
    to  { width: 0; background: transparent; }
}
.login_form_area .button {
    position: relative;
    display: flex;
    padding: 12px 24px;
    margin-top: 70px;
    margin-bottom: 20px;
    width: 100%;
    vertical-align: middle;
    color: #fff;
    font-size: 16px;
    line-height: 20px;
    -webkit-font-smoothing: antialiased;
    text-align: center;
    letter-spacing: 1px;
    background: transparent;
    border: 0;
    border-bottom: 2px solid #4a54dc;
    cursor: pointer;
    transition: all 0.5s ease-in-out;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.login_form_area .button p {
    font-family: "Noto Sans", sans-serif;
}
.loading_button {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 0.25rem solid rgba(255, 255, 255, 0.2);
    border-top-color: rgb(255, 255, 255);
    animation: spin 1s infinite linear;
}
.login_form_area .button:focus {
    outline: 0;
}
.login_form_area .buttonBlue {
    background: #4a54dc;
    text-shadow: 1px 1px 0 rgba(39, 110, 204, .5);
}
.login_form_area .buttonBlue:hover {
    background: #747ce9;
}
/* END */

/* Check Area */
.checkarea span {
    display: block;
    font-size: 18px;
}
.checkarea label:hover {
    color: #4a89dc;
}
.checkarea label{
    display: block;
    color: #2e2e2e !important;
    pointer-events: all;
    position: static !important;
    user-select: none;
    margin-top: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}
.checkarea input {
    width: 17px !important;
    height: 17px;
    display: unset !important;
    margin: 5px 5px;
    cursor: pointer;
}
.check_title {
    font-size: 18px;
    color: red;
    line-height: 35px;
}
.check ul {
    width: 90%;
    margin: 0 auto;
}
.check li {
    line-height: 30px;
}
.checkbox01 {
    display: flex;
    margin-top: 20px;
    position: relative;
    align-items: center;
}
.check01 {
    position: static;
    font-size: 15px;
    color: #000;
}
.checkbox input {
    width: 20px;
    height: 20px;
    margin: 10px 15px;
}
.checkbox input:focus ~ label, input.used ~ label {
    transform: unset;
}
#check01 {
    width: 20px;
    height: 20px;
}
#check02 {
    margin-top: 15px;
    width: 18px !important;
    height: 18px;
}
.checkbox a {
    color: #ff0000;
}
.checkbox {
    margin-bottom: 20px;
}
/* END */

/* Login Area */
.login_button {
    width: 100%;
    background-color: #EFF3F9;
    text-align: center;
    font-size: 14px;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}
.login_button a {
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    height: 50px;
    color: black;
    transition: .2s;
}
.login_button_span {
    color: rgb(0, 34, 255);
}
.login_button a:hover {
    background-color: #e6eef9;
}
/* END */

/* Request Information Area */
.request_information_area {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    text-align: right;
}
.request_information_area a {
    text-decoration: none;
    color: black;
    transition: .2s;
}
.request_information_area a:hover {
    color: rgb(255, 111, 0);
}
.request_information_text {
    font-size: 15px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 5px;
    padding-right: 20px;
}
.request_information_text_link {
    color: #0037ff;
}
.underline_row {
    border-top: 2px solid #000;
    margin: 0 0 0 auto;
    width: 330px;
    margin-top: 5px;
    position: relative;
}
.underline_row::after {
    content: "";
    position: absolute;
    border-top: 2px solid #000;
    width: 15px;
    height: 10px;
    rotate: 45deg;
    top: -9px;
    right: 2px;
}
/* END */


@media screen and (max-height: 1315px) {
    .logo {
        display: none;
    }
    .login_area {
        height: 90vh;
        margin: 5vh auto;
    }
    .login_form_each {
        height: calc(90vh - 200px);
    }
}
@media screen and (max-width: 760px) {
    .cover_explain_area {
        display: none;
    }
    .login_area_each {
        width: 100%;
    }
    .login_form_container {
        display: block;
    }
    .login_area {
        height: auto;
    }
    .login_form_each {
        height: auto;
        width: 100%;
    }
    .login_form_each_left {
        padding-right: 0;
    }
    .login_form_each_right {
        padding-left: 0;
    }
    .login_form_area .button {
        margin-top: 30px;
        margin-bottom: 50px;
    }
}