@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Zen+Kaku+Gothic+New:wght@300;400;500;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap');

:root {
    --font-family-sub: "Montserrat", "Zen Kaku Gothic New", "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", "Meiryo", "Segoe UI", "verdana", sans-serif;

    --color-primary-50: #f7fbff;
    --color-primary-100: #dceeee;
    --color-primary-300: #88dbe0;
    --color-primary-500: #005779;

    --color-bg: #f9f9f9;

    --color-btn-primary: #b6a231;
    --color-btn-sub: var(--color-white);

    --size-column: var(--size-06);
}

.c-btn {
    font-size: var(--font-size-l);
}

.c-contents {
    width: clamp(375px, 90%, 1200px);
}


.c-card-box {
    border-radius: var(--size-01);
    overflow: hidden;
}

header {
    position: fixed;
    width: 100%;
    z-index: 999;
}



.p-header.u-header-sp {
    display: none;
}

.p-header.u-header-pc {
    display: flex;
    justify-content: space-between;
    padding: var(--size-01) var(--size-02);
    margin-top: var(--size-02);
    background-color: var(--color-white);
    border-radius: var(--size-01);
    align-items: center;
}

.p-header.u-header-pc .p-header-logo img {
    width: 350px;
}


.p-header.u-header-pc .p-header-list {
    display: flex;
    gap: var(--size-04);
    align-items: center;
    font-size: var(--font-size-s);
    font-weight: var(--font-weight-heavy);
}

.p-header.u-header-pc .p-header-list a {
    transition: all .3s;
}

.p-header.u-header-pc .p-header-list a:hover {
    color: var(--color-btn-primary);
}

.p-header.u-header-pc .c-btn.u-btn-rounded {
    padding-top: var(--size-005);
    padding-bottom: var(--size-005);
    padding-right: var(--size-05);
    font-size: var(--font-size-s);
}

h2.p-ttl {
    line-height: 1;
    position: relative;
    font-size: clamp(var(--size-05), 5vw, var(--size-08));
    padding-bottom: var(--size-08);
    font-family: var(--font-family-sub);
    font-weight: var(--font-weight-bold);
    position: relative;
}


h2.p-ttl .p-ttl-sub {
    font-size: var(--font-size-l);
    display: block;
    margin-top: var(--size-02);
    color: var(--color-text-base);
    font-weight: var(--font-weight-heavy);
    letter-spacing: normal;
}

h2.p-ttl .p-ttl-border {
    width: 100%;
    border-bottom: solid 1px var(--color-gray-300);
}

#sec-form {
    padding-top: var(--size-20);
    background-color: var(--color-gray-50);
}

#sec-form .c-tab {
    background-color: var(--color-white);
}

#sec-mv {
    padding: 0;
    position: relative;
}

#sec-mv .p-mv {
    display: flex;
    justify-content: space-around;
    background-image: url(../img/mv.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    height: 700px;
}

#sec-mv .p-mv-cnt {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: var(--size-04) var(--size-20) var(--size-04) var(--size-10);
    display: flex;
    flex-direction: column;
    align-items: right;
    justify-content: right;
    width: fit-content;
}

#sec-mv .p-mv-cnt .p-mv-logo {
    display: block;
    z-index: 1;
    width: 200px;
}

#sec-mv .p-mv-cnt .p-mv-balloon {
    position: absolute;
    top: -90px;
    right: 0;
    width: 300px;
}


#sec-mv .p-mv-cnt::before {
    content: "";
    width: 121.5%;
    height: 100%;
    background-color: var(--color-primary-500);
    position: absolute;
    top: 0;
    right: 0;
    clip-path: polygon(21.5% 0%, 100% 0%, 100% 100%, 0% 100%);

}

#sec-mv .p-mv-cnt h1 {
    font-size: clamp(2.4rem, 5vw, 5.2rem);
    background: linear-gradient(0deg,
            #cac468 0%,
            #eee593 15%,
            #fffdcf 35%,
            #beb666 50%,
            #ebe7b9 65%,
            #e9de7b 80%,
            #f0ecc6 100%
        );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 1;
    display: inline-block;
    position: relative;
}

#sec-mv .p-mv-cnt h1 .p-mv-sub {
    font-size: var(--font-size-h1);
    display: block;
    margin-bottom: var(--size--03);
}

#sec-mv .p-mv-cnt h1 .p-mv-copy {
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-heavy);
    background: linear-gradient(0deg,
            #8a8943 0%,
            #c9c27f 15%,
            #f5f3d2 35%,
            #ede9c6 50%,
            #d6d18b 65%,
            #e8e3a3 80%,
            #d6d18b 100%
        );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 1;
    display: block;
}

#sec-mv .p-mv-cnt h1 .p-mv-copy span {
    display: inline-block;
    margin-left: var(--size-01);
    font-size: var(--font-size-xl);
}

.p-about {
    display: flex;
    gap: var(--size-10);
}


.p-about .p-about-img {
    flex: 1;
}

.p-about .p-about-img img {
    border-radius: var(--size-01);
    display: block;
}




.p-about .p-about-cnt {
    flex: 1.5;
}

.p-about h2 {
    font-size: var(--font-size-h1);
    margin-bottom: var(--size-04);
}

.p-about .c-text p {
    line-height: 2;
}

#sec-program .p-program {
    display: flex;
    gap: var(--size-10);
}



#sec-program .p-program .p-program-box.p-index {
    flex: 1.5;
}

#sec-program .p-program {
    position: relative;
}

#sec-program .p-sticky {
    position: sticky;
    height: 100%;
    top: var(--size-15);
    left: 0;
    flex: 1;
}

#sec-program .p-index {
    display: flex;
    flex-direction: column;
    gap: var(--size-06);
    position: relative;
}

#sec-program .p-index .p-index-box {
    padding-left: var(--size-04);
}

#sec-program .p-index.u-eff-line.u-eff-view::before {
    content: "";
    position: absolute;
    top: var(--size-02);
    left: 0.6rem;
    width: 1px;
    height: calc(100% - 2.4rem);
    transform-origin: top;
    transform: scaleY(0);
    animation: growLine 1.8s ease-out forwards;
    animation-delay: 0.8s;
    background-color: var(--color-primary-500);
}


@keyframes growLine {
    to {
        transform: scaleY(1);
    }
}

#sec-program .p-index .p-index-ttl {
    font-size: var(--font-size-h4);
    color: var(--color-primary-500);
    margin-bottom: var(--size-02);
    line-height: 1;
}

#sec-program .p-index .p-index-ttl .p-index-num::before {
    content: "";
    left: var(--size--04);
    top: 50%;
    transform: translateY(-50%);
    position: absolute;
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 50%;
    background-color: var(--color-primary-500);
}

#sec-program .p-index .p-index-ttl .p-index-num {
    font-family: var(--font-family-sub);
    font-size: clamp(3.2rem, 5vw, 3.6rem);
    font-weight: var(--font-weight-bold);
    margin-right: var(--size-01);
    position: relative;
}


#sec-point .p-point .p-point-ttl {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-family-sub);
}

#sec-point .p-point .p-point-ttl span {
    font-size: clamp(3.2rem, 5vw, 6rem);
    font-weight: var(--font-weight-bold);
    display: inline-block;
    margin-left: var(--size-01);
}

#sec-point .p-point .p-point-box .c-card-ttl h3 {
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-heavy);
}

#sec-cta {
    position: relative;
    background: linear-gradient(150deg, var(--color-primary-500), var(--color-primary-300));
}

/* #sec-cta::after {
    content: "";
    width: 100%;
    height: calc(100% + var(--size-10));
    background: linear-gradient(150deg, var(--color-primary-500), var(--color-primary-300));
    position: absolute;
    top: var(--size--10);
    left: 0;
    z-index: -2;
} */

#sec-close {
    position: relative;
    background: linear-gradient(150deg, var(--color-primary-500), var(--color-primary-300));
}


#sec-cta p,
#sec-close p {
    text-align: center;
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-l);
}

#sec-cta .c-btn.u-btn-primary,
#sec-close .c-btn.u-btn-primary {
    border: solid 1px var(--color-white);
}

#sec-info .p-date {
    display: flex;
    gap: var(--size-10);
}

#sec-info .p-date .p-date-box {
    display: flex;
    gap: var(--size-02);
    flex: 1;
}

#sec-info .p-date .p-date-box span.p-date-type {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-bold);
    writing-mode: vertical-rl;
    padding: var(--size-02) var(--size-005);
    border-radius: var(--size-005);
    background-color: var(--color-primary-500);
    color: var(--color-white);
    text-orientation: upright;
    display: block;
}

#sec-info .p-date .p-date-box .p-date-item {
    display: flex;
    flex-direction: column;
    font-size: var(--font-size-h4);
    font-family: var(--font-family-sub);
    justify-content: space-around;
}

#sec-form #sec-info .p-date .p-date-box .p-date-item {
    flex-direction: unset;
    width: 100%;
}

#sec-form #sec-info .p-date {
    padding: var(--size-02) var(--size-04) var(--size-04);
    border-bottom: 1px solid var(--color-gray-100);
    margin-bottom: var(--size-04);
}

#sec-form .c-tab .c-tab-list .c-tab-btn {
    font-size: var(--font-size-h5);
}

#sec-form h1 {
    margin-bottom: var(--size-04);
}

#sec-info .p-date .p-date-box .p-date-item .p-date-dtl {
    font-weight: var(--font-weight-bold);
}

#sec-info .p-date .p-date-box .p-date-item .p-date-dtl .p-date-half {
    font-family: var(--font-family);
    font-size: var(--font-size-h5);
    display: inline-block;
    margin-right: var(--size-01);
    padding: 0 var(--size-01);
    border: solid 2px var(--color-primary-500);
    color: var(--color-primary-500);
    border-radius: var(--size-005);
}

#sec-info .p-info {
    display: flex;
    gap: var(--size-10);
    margin-top: var(--size-10);
}

#sec-info .p-speaker {
    flex: 2;
}


#sec-info .p-speaker-dtl {
    display: flex;
    gap: var(--size-02);
    margin-bottom: var(--size-03);
}

#sec-info .p-speaker-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

#sec-info .p-speaker-list {
    font-size: var(--font-size-s);
    margin-top: var(--size-02);
}

#sec-info .p-outline {
    flex: 1;
    gap: var(--size-06);
    display: flex;
    flex-direction: column;
}



#sec-info .p-info-ttl {
    font-size: var(--font-size-h5);
    margin-bottom: var(--size-02);
    border-left: solid 3px var(--color-primary-500);
    padding-left: var(--size-02);
    border-bottom: solid 1px var(--color-gray-100);
    padding-bottom: var(--size-01);
}

#sec-info .p-tutor {
    flex: 1;
}

#sec-info .p-tutor-dtl {
    display: flex;
    gap: var(--size-03);
}

#sec-info .p-tutor-dtl .p-tutor-img img {
    width: 180px;
    border-radius: var(--size-01);
}

#sec-info .p-tutor-dtl .p-tutor-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    display: block;
    margin-bottom: var(--size-01);
}

#sec-info .p-tutor-dtl ul,
#sec-info .p-tutor-dtl p {
    font-size: var(--font-size-s);
}

#sec-info .p-tutor-prof {
    margin-top: var(--size-03);
}

#sec-info .p-env {
    margin-top: var(--size-06);
    background-color: var(--color-gray-50);
    padding: var(--size-04) var(--size-06);
}

#sec-info .p-env-box {
    display: flex;
    justify-content: space-between;
    gap: var(--size-10);
}

#sec-info .p-env-box .p-env-item {
    flex: 1;
}
#sec-info .p-env-box .p-env-item ol,
#sec-info .p-env-box .p-env-item p {
    margin-left: 1.5em;
    font-size:var(--font-size-s);
}

#sec-info .p-env-box .p-env-item h4 {
    margin-bottom: var(--size-01);
}

#sec-info .p-env-box .p-env-item h4:not(:first-of-type) {
    margin-top: var(--size-02);
}

.p-footer {
    display: flex;
    justify-content: space-between;
    background-color: var(--color-gray-100);
}

.p-footer .p-footer-box {
    display: flex;
    justify-content: space-between;
    gap: var(--size-10);
}

.p-footer .p-footer-logo,
.p-footer .p-footer-contact {
    flex: 1;
}

.p-footer .p-footer-logo img {
    width: 300px;
}

.p-footer .p-footer-contact h2 {
    font-size: var(--font-size-m);
    margin-bottom: var(--size-02);
    padding-bottom: var(--size-01);
    padding-left: var(--size-02);
    border-left: solid 3px var(--color-primary-500);
    border-bottom: solid 1px var(--color-gray-300);
}

.p-footer .p-footer-list {
    font-size: var(--font-size-s);
}

.p-footer .p-footer-list a,
.p-footer-btm ul a {
    text-decoration: underline;
    transition: all .3s;
}


.p-footer .p-footer-list a:hover,
.p-footer-btm ul a:hover {
    opacity: .7;
    text-decoration: none;
}

.p-footer .p-footer-cnt {
    display: flex;
    gap: var(--size-04);
}


.p-footer .p-footer-cnt span {
    display: block;
    font-size: var(--font-size-s);
    font-weight: var(--font-weight-heavy);
}

.p-footer-btm {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--size-01) 0;
    font-size: 1.2rem;
}

.p-footer-btm .c-contents {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.p-footer-btm ul {
    display: flex;
    gap: var(--size-04);
}


@media screen and (max-width: 1280px) {
    #sec-mv .p-mv {
        background-image: url(../img/mv_1280.webp);
        height: 620px;
    }

    #sec-mv .p-mv-cnt::before {
        width: 124%;
        clip-path: polygon(24% 0%, 100% 0%, 100% 100%, 0% 100%);
    }

    #sec-mv .p-mv-cnt {
        padding: var(--size-04) var(--size-10) var(--size-04) var(--size-05);

    }
}


@media screen and (max-width: 1024px) {


    .p-header.u-header-pc .p-header-logo img {
        width: 300px;
    }

    #sec-mv .p-mv-cnt img {
        width: 250px;
    }

    .p-about,
    #sec-program .p-program,
    #sec-info .p-info,
    #sec-info .p-date,
    .p-footer .p-footer-box,
    #sec-info .p-env-box  {
        gap: var(--size-05);
    }

    #sec-info .p-date .p-date-box .p-date-item {
        font-size: var(--font-size-h5);
    }

    #sec-info .p-date .p-date-box span.p-date-type {
        font-size: var(--font-size-h4);
    }

    .p-footer .p-footer-cnt {
        gap: var(--size-02);
    }
}

@media screen and (max-width: 928px) {
    #sec-mv {
        padding-top: var(--size-08);
    }

    .p-header.u-header-pc {
        display: none;
    }

    .p-header.u-header-sp {
        display: flex;
        align-items: center;
        padding: var(--size-02);
        background-color: var(--color-white);
        height: var(--size-08);
    }



    .p-header.u-header-sp .p-header-menu {
        cursor: pointer;
        position: fixed;
        top: 0;
        right: 1.2rem;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 60px;
        width: 60px;
        z-index: 180;
    }

    .p-header.u-header-sp .p-header-menu span,
    .p-header.u-header-sp .p-header-menu span::before,
    .p-header.u-header-sp .p-header-menu span::after {
        content: "";
        position: absolute;
        display: block;
        height: 3px;
        width: 25px;
        border-radius: 3px;
        background-color: var(--color-primary-500);
    }

    .p-header.u-header-sp .p-header-menu span::before {
        bottom: 8px;
    }

    .p-header.u-header-sp .p-header-menu span::after {
        top: 8px;
    }


    #sp-menu-check {
        display: none;
    }


    #sp-menu-check:checked+.p-header-menu span {
        background: rgba(255, 255, 255, 0);
    }

    #sp-menu-check:checked+.p-header-menu span::before {
        bottom: 0;
        transform: rotate(45deg);
    }

    #sp-menu-check:checked+.p-header-menu span::after {
        top: 0;
        transform: rotate(-45deg);
    }

    .p-header.u-header-sp .p-header-cnt {
        position: fixed;
        width: 100%;
        height: 100vh;
        top: 0;
        left: 100%;
        z-index: 150;
        background-color: #fff;
        transition: all .5s;
        overflow-x: scroll;
    }

    .p-header.u-header-sp .p-header-cnt ul {
        padding: 1.2rem 1.2rem 1.2rem;
        background-color: #fff;
        overflow-y: hidden;
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .p-header.u-header-sp .p-header-cnt ul li {
        list-style: none;
        position: relative;
    }

    .p-header.u-header-sp .p-header-cnt ul li::before {
        width: 3px;
        height: 100%;
        position: absolute;
        content: "";
        top: 0;
        left: 0;
    }

    .p-header.u-header-sp .p-header-cnt ul li:not(:first-of-type)::after {
        content: "";
        left: 0;
        width: 100%;
        height: 1px;
        background-color: #e8e8e8;
        top: -1rem;
        position: absolute;
    }

    .p-header.u-header-sp .p-header-cnt ul li.p-header-list a {
        font-weight: 500;
        display: block;
        width: 100%;
        font-size: 1.4rem;
        box-sizing: border-box;
        text-decoration: none;
        padding: 0.8rem 2rem;
    }

    #sp-menu-check:checked~.p-header-cnt {
        left: 0;
    }


    .p-header.u-header-sp .p-header-cnt img {
        width: 300px;
    }


    .p-header.u-header-sp .p-header-logo img {
        width: 300px;
    }


    #sec-mv .p-mv {
        background-image: url(../img/mv_928.webp);
        aspect-ratio: 3 / 4;
        width: 100%;
        height: auto;
    }

    #sec-mv .p-mv-cnt {
        padding: var(--size-04) var(--size-02) var(--size-04) var(--size-05);
    }

    #sec-info .p-date {
        flex-direction: column;
        gap: var(--size-03);
    }

    #sec-info .p-tutor-dtl {
        flex-direction: column;
    }

    .p-footer .p-footer-cnt {
        flex-direction: column;
        gap: 0;
    }

    .p-footer .p-footer-logo img {
        width: 230px;
    }
}

@media screen and (max-width: 520px) {
    .p-header.u-header-sp .p-header-logo img,
    .p-header.u-header-sp .p-header-cnt img {
        width: 250px;
    }
    .c-btn {
        margin-right: auto;
        margin-left: auto;
    }

    #sec-form #sec-info .p-date .p-date-box .p-date-item {
        flex-direction: column;
        gap: var(--size-01);
        align-items: center;
    }


    #sec-mv .p-mv-cnt h1 .p-mv-sub {
        font-size: 2rem;
    }

    #sec-mv .p-mv-cnt {
        padding: var(--size-03);
        bottom: var(--size--10);
    }

    #sec-mv .p-mv-cnt::before {
        width: 100%;
        clip-path: none;
    }

    #sec-mv {
        margin-bottom: var(--size-13);
    }

    #sec-mv .p-mv-cnt h1 .p-mv-sub {
        margin-bottom: var(--size--01);
    }

    #sec-mv .p-mv-cnt .p-mv-balloon {
        width: 200px;
    }

    .p-about {
        flex-direction: column;
    }

    .p-about br {
        display: none;
    }

    #sec-program .p-program {
        flex-direction: column;
    }

    #sec-info .p-info {
        flex-direction: column-reverse;
    }

    #sec-program .p-sticky {
        position: relative;
        top: auto;
    }

    #sec-point .p-point-box {
        border: solid 1px var(--color-gray-100);
    }

    #sec-info .p-tutor-dtl {
        align-items: center;
    }

    #sec-info .p-env-box {
        flex-direction: column;
        gap: var(--size-02);
    }

    .p-footer .p-footer-box {
        flex-direction: column;
    }

    .p-footer .p-footer-logo {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .p-footer-btm .c-contents {
        flex-direction: column;
    }
}