main {
    width: min(767px, 100% - 40px);
    margin: 100px auto;
    line-height: 1.2;
}

.top h1 {
    font-size: 20px;
}

.top h2 {
    font-size: 42px;
}

form h3 {
    margin: 5px 0;
    font-size: 18px;
}

form h3 sup {
    font-size: 10px;
    margin: 0 0 0 5px;
    color: #F00;
}

form {
    background: var(--secondback);
    padding: 20px;
    border-radius: 20px;
    margin: 10px 0 0;
}

form>div:not(:last-child) {
    margin: 0 0 30px 0;
}

form>div:has(input[type="text"]),
form>div:has(input[type="email"]),
form>div:has(input[type="url"]) {
    align-items: center;
}

form input[type="text"],
form input[type="email"],
form input[type="url"],
form textarea {
    outline: none;
    border: none;
    font-family: var(--font-family);
    padding: 8px 14px;
    width: min(100%, 450px);
    border-radius: 10px;
    background: var(--thirdback);
    font-size: 16px;
    transition: 1s;
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form input[type="url"]:focus,
form textarea:focus {
    background: var(--fourthback);
    transition: .2s;
}

form input[type="radio"],
form input[type="checkbox"] {
    display: none;
}

form label {
    cursor: pointer;
}

form .selectform input+label {
    background: var(--thirdback);
    padding: 5px 15px;
    line-height: 2;
    border-radius: 10px;
    color: var(--subtext);
    position: relative;
    transition: 1s;
}

form .selectform input:checked+label {
    color: var(--maintext);
    background: var(--fourthback);
    padding: 5px 15px 5px 38px;
    transition: .2s;
}

form .selectform input+label:hover {
    color: var(--maintext);
    transition: .2s;
}

form .selectform input+label::before {
    position: absolute;
    content: "";
    top: 15px;
    left: 15px;
    width: 0px;
    height: 7px;
    transform: rotate(135deg);
    border-top: 2px solid var(--maintext);
    border-right: 2px solid var(--maintext);
    transition: 1s;
    opacity: 0;
}

form .selectform input:checked+label::before {
    top: 11px;
    left: 15px;
    width: 15px;
    height: 7px;
    border-top: 2px solid var(--maintext);
    border-right: 2px solid var(--maintext);
    opacity: 1;
    transition: .2s;
}

form .selectcontent>div {
    width: min(450px, 100%);
}

form .selectcontent input+label {
    position: relative;
    line-height: 1.5;
    color: var(--subtext);
    padding: 0 0 0 25px;
    transition: 1s;
}

form .selectcontent input:checked+label {
    color: var(--maintext);
    transition: .2s;
}

form .selectcontent input+label::before {
    position: absolute;
    content: "";
    top: 4px;
    left: 0;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    border: 2px solid var(--subtext)
}

form .selectcontent input:checked+label::before {
    border: 2px solid var(--maintext);
    transition: .2s;
}

form .selectcontent input+label::after {
    position: absolute;
    content: "";
    top: 13.5px;
    left: 9.5px;
    width: 0px;
    height: 0px;
    border-radius: 50%;
    background: var(--subtext);
    transition: 1s;
}

form .selectcontent input:checked+label::after {
    top: 8px;
    left: 4px;
    width: 11px;
    height: 11px;
    background: var(--maintext);
    transition: .2s;
}

form .check input+label {
    background: var(--thirdback);
    border-radius: 99px;
    padding: 6px 18px;
    line-height: 2;
    color: var(--subtext);
    transition: 1s;
    position: relative;
}

form .check input:checked+label {
    color: var(--maintext);
    background: var(--fourthback);
    padding: 6px 18px 6px 40px;
    transition: .2s;
}

form .check input+label::before {
    position: absolute;
    content: "";
    top: 20px;
    left: 18px;
    width: 0px;
    height: 7px;
    transform: rotate(135deg);
    border-top: 2px solid var(--maintext);
    border-right: 2px solid var(--maintext);
    transition: 1s;
    opacity: 0;
}

form .check input:checked+label::before {
    top: 15px;
    left: 18px;
    width: 15px;
    height: 7px;
    transition: .2s;
    opacity: 1;
}

form .selectform label:active,
form .selectform input:checked+label:active,
form .check label:active,
form .check input:checked+label:active {
    background: var(--fifthback);
    transition: .2s;
}

form .content textarea {
    min-width: min(450px, 100%);
    max-width: min(450px, 100%);
    height: 200px;
    min-height: 200px;
    max-height: 300px;
    resize: vertical;
}

form .explain {
    width: 100%;
    margin: 80px 0 0 !important;
}

form .explain p {
    width: min(450px, 100%);
    margin: 0 0 0 auto;
    font-size: 14px;
    color: var(--subtext);
    line-height: 1.4;
}

form .submit {
    margin: 20px 0 0;
}

form input[type="submit"] {
    outline: none;
    border: none;
    font-family: var(--font-family);
    padding: 8px 30px;
    margin: 0 0 0 auto;
    border-radius: 99px;
    background: var(--themecolor);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: 1s;
}

form input[type="submit"]:hover {
    background: var(--themecolorhover);
    filter: drop-shadow(0 0 10px var(--themecolorhover));
    transition: .2s;
}

form input[type="submit"]:active {
    transition: .2s;
    transform: scale(.9);
}

.nosubmit {
    pointer-events: none;
    cursor: not-allowed !important;
    background: var(--thirdback) !important;
    color: var(--subtext) !important;
}

.submitnow {
    pointer-events: none;
    background: var(--thirdback) !important;
    color: var(--accentcolor) !important;
    filter: drop-shadow(0 0 10px var(--accentcolor));
    transition: .2s;
}

/* 選択したら消えたり見えたり */
form>div {
    display: flex;
    justify-content: space-between;
}

.leader,
.coname,
.url {
    display: none;
}

form:has(#selectform2:checked) .leader {
    display: inline;
}

form:has(#selectform2:checked) .coname,
form:has(#selectcontent3:checked) .url,
form:has(#selectcontent4:checked) .url,
form:has(#selectcontent6:checked) .url {
    display: flex;
}

@media screen and (max-width: 767px) {
    form>div {
        display: block;
    }

    form:has(#selectform2:checked) .coname,
    form:has(#selectcontent3:checked) .url,
    form:has(#selectcontent4:checked) .url,
    form:has(#selectcontent6:checked) .url {
        display: block;
    }

    form .check input:checked+label::before {
        top: 13px;
    }

    form .explain p {
        margin: 0 auto 0 0;
    }
}