@charset "UTF-8";

:root {
    --theme-bg: url("../img/bg.jpg");
    --theme-deep-rgb: 5, 24, 55;
    --theme-main-rgb: 10, 55, 99;
    --green-deep: #051837;
    --green: #0a3763;
    --green-light: #2c6fa9;
    --gold: #d8ae3d;
    --gold-bright: #f7da66;
    --ivory: #fffdf4;
    --ink: #1b2d49;
    --muted: #687386;
}

/* bodyのクラスをtheme-emeraldにすると旧エメラルド版へ切り替え可能 */
body.theme-emerald {
    --theme-bg: url("../img/_bg.jpg");
    --theme-deep-rgb: 3, 47, 39;
    --theme-main-rgb: 7, 92, 72;
    --green-deep: #032f27;
    --green: #075c48;
    --green-light: #14866b;
    --ink: #17372f;
    --muted: #66756f;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 24px;
}

body {
    min-width: 320px;
    margin: 0;
    color: var(--ink);
    background: var(--green-deep);
    font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
    font-size: 16px;
    line-height: 1.9;
    letter-spacing: .045em;
}

body::before {
    position: fixed;
    z-index: -2;
    inset: 0;
    background: var(--theme-bg) center top / cover no-repeat;
    content: "";
}

body::after {
    position: fixed;
    z-index: -1;
    inset: 0;
    background:
        radial-gradient(circle at 50% 12%, rgba(255, 235, 146, .08), transparent 32%),
        linear-gradient(180deg, rgba(var(--theme-deep-rgb), .08), rgba(var(--theme-deep-rgb), .5));
    pointer-events: none;
    content: "";
}

a {
    color: var(--green-light);
    text-underline-offset: .2em;
    transition: color .25s ease, opacity .25s ease, transform .25s ease, background .25s ease;
}

a:hover {
    color: #b58516;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 0;
    left: 12px;
    padding: 8px 14px;
    color: #fff;
    background: var(--green-deep);
    transform: translateY(-120%);
}

.skip-link:focus {
    transform: translateY(0);
}

.hero {
    position: relative;
    display: grid;
    min-height: min(100svh, 920px);
    place-items: center;
    overflow: hidden;
    padding: 54px 24px 86px;
}

.hero::before,
.hero::after {
    position: absolute;
    inset: -10%;
    background-repeat: no-repeat;
    mix-blend-mode: screen;
    pointer-events: none;
    will-change: transform, opacity;
    content: "";
}

.hero::before {
    background-image:
        radial-gradient(circle at 6% 16%, rgba(255, 246, 188, .9) 0 1px, transparent 3px),
        radial-gradient(circle at 14% 68%, rgba(255, 218, 92, .65) 0 2px, transparent 4px),
        radial-gradient(circle at 22% 34%, rgba(255, 255, 255, .8) 0 1px, transparent 3px),
        radial-gradient(circle at 31% 82%, rgba(255, 231, 139, .7) 0 1.5px, transparent 4px),
        radial-gradient(circle at 39% 12%, rgba(255, 218, 92, .7) 0 1px, transparent 3px),
        radial-gradient(circle at 47% 56%, rgba(255, 255, 255, .75) 0 1.5px, transparent 4px),
        radial-gradient(circle at 58% 27%, rgba(255, 235, 157, .85) 0 1px, transparent 3px),
        radial-gradient(circle at 66% 76%, rgba(255, 218, 92, .6) 0 2px, transparent 5px),
        radial-gradient(circle at 74% 43%, rgba(255, 255, 255, .8) 0 1px, transparent 3px),
        radial-gradient(circle at 83% 18%, rgba(255, 231, 139, .75) 0 1.5px, transparent 4px),
        radial-gradient(circle at 91% 63%, rgba(255, 218, 92, .65) 0 1px, transparent 3px),
        radial-gradient(circle at 96% 88%, rgba(255, 255, 255, .65) 0 1px, transparent 3px);
    opacity: .78;
    animation: sparkle-drift-a 14s ease-in-out infinite alternate;
}

.hero::after {
    background-image:
        radial-gradient(circle at 4% 84%, rgba(255, 255, 255, .7) 0 1px, transparent 3px),
        radial-gradient(circle at 11% 42%, rgba(255, 224, 105, .8) 0 1.5px, transparent 4px),
        radial-gradient(circle at 19% 9%, rgba(255, 255, 255, .6) 0 1px, transparent 3px),
        radial-gradient(circle at 27% 61%, rgba(255, 238, 167, .8) 0 2px, transparent 5px),
        radial-gradient(circle at 36% 29%, rgba(255, 220, 92, .65) 0 1px, transparent 3px),
        radial-gradient(circle at 45% 91%, rgba(255, 255, 255, .75) 0 1px, transparent 3px),
        radial-gradient(circle at 54% 44%, rgba(255, 226, 116, .75) 0 1.5px, transparent 4px),
        radial-gradient(circle at 63% 7%, rgba(255, 255, 255, .7) 0 1px, transparent 3px),
        radial-gradient(circle at 71% 68%, rgba(255, 220, 92, .75) 0 2px, transparent 5px),
        radial-gradient(circle at 79% 32%, rgba(255, 244, 190, .8) 0 1px, transparent 3px),
        radial-gradient(circle at 88% 86%, rgba(255, 255, 255, .65) 0 1.5px, transparent 4px),
        radial-gradient(circle at 96% 49%, rgba(255, 220, 92, .7) 0 1px, transparent 3px);
    opacity: .55;
    animation: sparkle-drift-b 19s ease-in-out -7s infinite alternate;
}

@keyframes sparkle-drift-a {
    0%   { opacity: .28; transform: translate3d(-1.5%, 2%, 0) rotate(-.4deg) scale(.98); }
    35%  { opacity: .82; }
    65%  { opacity: .42; }
    100% { opacity: .68; transform: translate3d(2.5%, -3%, 0) rotate(.7deg) scale(1.04); }
}

@keyframes sparkle-drift-b {
    0%   { opacity: .68; transform: translate3d(2%, -1%, 0) rotate(.5deg) scale(1.03); }
    30%  { opacity: .32; }
    72%  { opacity: .78; }
    100% { opacity: .24; transform: translate3d(-3%, 3.5%, 0) rotate(-.8deg) scale(.97); }
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: flex;
    width: min(900px, 88vw);
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero__logo {
    width: clamp(270px, 32vw, 375px);
    filter: drop-shadow(0 8px 22px rgba(0, 0, 0, .28));
    animation: hero-in .9s ease-out both;
}

.hero__title {
    display: block;
    width: min(951px, 90vw);
    margin-top: clamp(18px, 4vh, 40px);
    filter: drop-shadow(0 3px 9px rgba(0, 0, 0, .3));
    animation: hero-in .9s .18s ease-out both;
}

.hero__title img {
    display: block;
    width: 100%;
}

.hero__lead {
    margin: 24px 0 0;
    color: rgba(255, 248, 214, .9);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(11px, 1.15vw, 14px);
    letter-spacing: .42em;
    animation: hero-in .9s .32s ease-out both;
}

.hero__lead span {
    color: var(--gold-bright);
}

.hero__banner {
    position: absolute;
    z-index: 3;
    top: 56%;
    right: clamp(14px, 2.5vw, 36px);
    display: block;
    width: clamp(124px, 11.5vw, 158px);
    border-radius: 50%;
    filter: drop-shadow(0 10px 18px rgba(var(--theme-deep-rgb), .42));
    transform: translateY(-50%);
    animation: banner-appear .8s .45s ease-out both, banner-float 3.8s 1.25s ease-in-out infinite;
}

.hero__banner:hover {
    filter: drop-shadow(0 13px 22px rgba(var(--theme-deep-rgb), .55)) brightness(1.06);
}

.hero__banner img {
    display: block;
    width: 100%;
    transition: transform .25s ease;
}

.hero__banner:hover img {
    transform: scale(1.04);
}

@keyframes banner-float {
    0%, 100% { transform: translateY(-50%); }
    50% { transform: translateY(calc(-50% - 7px)); }
}

@keyframes banner-appear {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes hero-in {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero__scroll {
    position: absolute;
    bottom: 18px;
    left: 50%;
    color: rgba(255, 248, 214, .75);
    font-family: Arial, sans-serif;
    font-size: 9px;
    letter-spacing: .28em;
    transform: translateX(-50%);
}

.hero__scroll span {
    display: block;
    width: 1px;
    height: 36px;
    margin: 0 auto 8px;
    background: linear-gradient(var(--gold-bright) 50%, rgba(255,255,255,.15) 50%);
    background-size: 100% 200%;
    animation: scroll-line 1.8s linear infinite;
}

@keyframes scroll-line {
    to { background-position: 0 -200%; }
}

.quick-nav {
    position: relative;
    z-index: 2;
    display: grid;
    width: min(920px, calc(100% - 32px));
    margin: -34px auto 0;
    border: 1px solid rgba(240, 208, 112, .65);
    background: rgba(var(--theme-deep-rgb), .94);
    box-shadow: 0 14px 40px rgba(var(--theme-deep-rgb), .38);
    grid-template-columns: repeat(4, 1fr);
    backdrop-filter: blur(8px);
}

.quick-nav a {
    padding: 17px 10px 14px;
    color: var(--gold-bright);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 13px;
    letter-spacing: .13em;
    text-align: center;
    text-decoration: none;
}

.quick-nav a + a {
    border-left: 1px solid rgba(240, 208, 112, .28);
}

.quick-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, .08);
}

.quick-nav span {
    display: block;
    margin-top: 2px;
    color: rgba(255, 255, 255, .7);
    font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
    font-size: 10px;
    letter-spacing: .08em;
}

.page-content {
    width: min(1080px, calc(100% - 32px));
    margin: 52px auto 80px;
}

.article {
    position: relative;
    overflow: hidden;
    padding: clamp(38px, 6vw, 78px);
    border: 1px solid rgba(245, 215, 127, .82);
    background:
        linear-gradient(rgba(255, 253, 244, .97), rgba(250, 248, 236, .97)),
        var(--theme-bg) center / cover;
    box-shadow: 0 24px 70px rgba(var(--theme-deep-rgb), .45), inset 0 0 0 7px rgba(255, 255, 255, .42);
}

.article::before,
.article::after {
    position: absolute;
    width: 72px;
    height: 72px;
    border-color: var(--gold);
    content: "";
}

.article::before {
    top: 20px;
    left: 20px;
    border-top: 1px solid;
    border-left: 1px solid;
}

.article::after {
    right: 20px;
    bottom: 20px;
    border-right: 1px solid;
    border-bottom: 1px solid;
}

.section-heading {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0 0 28px;
    padding-bottom: 13px;
    border-bottom: 1px solid rgba(181, 133, 22, .48);
    color: var(--green-deep);
    font-size: clamp(21px, 3vw, 29px);
    letter-spacing: .08em;
    scroll-margin-top: 24px;
}

.section-heading strong {
    font-weight: 600;
}

.ticket-type {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 13px;
}

.ticket-type .ticket-name {
    font-size: 1.18em;
    letter-spacing: .08em;
}

.ticket-type .ticket-badge {
    position: relative;
    z-index: 1;
    display: inline-block;
    margin: 0;
    padding: 7px 19px 6px 32px;
    border: 1px solid rgba(255, 255, 255, .72);
    outline: 1px solid var(--gold);
    color: var(--green-deep);
    background: linear-gradient(135deg, #fff0a5, var(--gold-bright) 48%, #d9ac34);
    box-shadow: 3px 5px 0 rgba(var(--theme-deep-rgb), .16), 0 7px 16px rgba(var(--theme-deep-rgb), .12);
    font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: .08em;
    transform: rotate(-1.4deg);
}

.ticket-type .ticket-badge::before {
    position: absolute;
    top: 50%;
    left: 13px;
    color: #fff8d2;
    font-size: 10px;
    line-height: 1;
    text-shadow: 0 1px 2px rgba(117, 78, 0, .22);
    transform: translateY(-50%);
    content: "◆";
}

.separate {
    display: grid;
    overflow: hidden;
    margin: 0 0 44px;
    border: 1px solid rgba(var(--theme-main-rgb), .18);
    border-radius: 2px;
    background: rgba(255, 255, 255, .58);
    grid-template-columns: minmax(180px, 27%) 1fr;
}

.separate dt,
.separate dd {
    margin: 0;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(var(--theme-main-rgb), .13);
}

.separate dt {
    border-bottom-color: rgba(247, 218, 102, .5);
    color: #fff;
    background: var(--green);
    font-weight: 700;
}

.separate dd {
    min-width: 0;
}

.separate dt:last-of-type,
.separate dd:last-of-type {
    border-bottom: 0;
}

.separate .larger {
    color: #9b6e09;
    font-family: Georgia, "Yu Mincho", serif;
    font-size: 1.55em;
}

.article p {
    margin-top: 0;
}

.article > .larger.tac {
    margin: 58px 0 28px;
    color: var(--green-deep);
    font-size: clamp(21px, 2.8vw, 27px);
    line-height: 1.5;
    text-align: center;
}

.article > .larger.tac strong::before,
.article > .larger.tac strong::after {
    color: var(--gold);
    content: "◇";
    margin: 0 .65em;
    font-size: .6em;
    vertical-align: .2em;
}

.article > p.mb-1:not(.section-heading),
.article > p.larger.mb-2 {
    margin-top: 34px;
    color: var(--green);
    font-size: 1.15em;
}

.accd-title {
    position: relative;
    padding-right: 42px;
    cursor: pointer;
    user-select: none;
}

.accd-title::before,
.accd-title::after {
    position: absolute;
    top: 50%;
    right: 10px;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    content: "";
    transition: transform .25s ease;
}

.accd-title::before {
    transform: translateY(-50%);
}

.accd-title::after {
    transform: translateY(-50%) rotate(90deg);
}

.accd-title.is-open::after {
    transform: translateY(-50%) rotate(0deg);
}

.accd-title:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 5px;
}

.accd-body {
    display: none;
}

ul {
    padding-left: 1.35em;
}

li::marker {
    color: var(--gold);
}

.asta {
    color: inherit;
    font-size: .91em;
}

.separate dd .asta {
    color: var(--muted);
}

.asta li::marker {
    content: "※ ";
}

.d-flex {
    display: grid;
    gap: 16px;
    margin-bottom: 50px;
    grid-template-columns: repeat(3, 1fr);
}

.d-flex a {
    position: relative;
    display: block;
    overflow: hidden;
    border: 1px solid rgba(181, 133, 22, .35);
    background: #fff;
    box-shadow: 0 8px 20px rgba(var(--theme-deep-rgb), .1);
}

.d-flex a::after {
    position: absolute;
    right: 9px;
    bottom: 9px;
    display: grid;
    width: 30px;
    height: 30px;
    border: 1px solid rgba(255, 255, 255, .72);
    border-radius: 50%;
    color: #fff;
    background: rgba(var(--theme-deep-rgb), .78);
    box-shadow: 0 3px 8px rgba(var(--theme-deep-rgb), .2);
    font-family: Arial, sans-serif;
    font-size: 19px;
    line-height: 1;
    place-items: center;
    content: "+";
}

.d-flex a:hover {
    transform: translateY(-4px);
}

.d-flex img {
    display: block;
    width: 100%;
}

.kugiri_solid,
.kugiri_dot {
    height: 1px;
    margin: 62px 0;
    border: 0;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    scroll-margin-top: 24px;
}

.kugiri_dot {
    background: repeating-linear-gradient(90deg, transparent 0 6px, rgba(181, 133, 22, .58) 6px 8px);
}

.morebtn_line_s {
    display: inline-flex;
    min-width: min(100%, 290px);
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: 1px solid var(--green);
    color: #fff;
    background: var(--green);
    font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
    font-weight: 700;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
}

.morebtn_line_s::after {
    margin-left: 12px;
    content: "→";
}

.morebtn_line_s:hover {
    color: var(--green);
    background: transparent;
}

.tac { text-align: center; }
.lhs { line-height: 1.75; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 12px; }
.mb-2 { margin-bottom: 20px; }
.mb-4 { margin-bottom: 36px; }
.mb-5 { margin-bottom: 50px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mt-5 { margin-top: 50px; }

.footer {
    padding: 4px 20px 38px;
    color: rgba(255, 255, 255, .62);
    font-family: Georgia, serif;
    font-size: 11px;
    letter-spacing: .16em;
    text-align: center;
}

.footer a {
    display: inline-block;
    margin-bottom: 24px;
    padding: 10px 20px;
    border-bottom: 1px solid var(--gold);
    color: var(--gold-bright);
    text-decoration: none;
}

@media (max-width: 767px) {
    body {
        font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
        font-size: 14px;
        line-height: 1.85;
        letter-spacing: .025em;
    }

    body::before {
        background-position: center top;
    }

    .hero {
        min-height: 100svh;
        padding: 36px 18px 82px;
    }

    .hero__inner {
        width: 100%;
    }

    .hero__logo {
        width: min(66vw, 310px);
    }

    .hero__title {
        width: min(84vw, 460px);
        margin-top: 18px;
    }

    .hero__lead {
        font-size: 9px;
        letter-spacing: .25em;
    }

    .hero__banner {
        top: 55%;
        right: 4px;
        width: clamp(88px, 24vw, 98px);
    }

    .hero__scroll {
        bottom: 44px;
    }

    .hero__scroll span {
        height: 20px;
        margin-bottom: 6px;
    }

    .quick-nav {
        width: calc(100% - 24px);
        margin-top: -28px;
        grid-template-columns: repeat(2, 1fr);
    }

    .quick-nav a {
        padding: 12px 6px 10px;
        font-size: 11px;
    }

    .quick-nav a:nth-child(3) {
        border-top: 1px solid rgba(240, 208, 112, .28);
        border-left: 0;
    }

    .quick-nav a:nth-child(4) {
        border-top: 1px solid rgba(240, 208, 112, .28);
    }

    .page-content {
        width: calc(100% - 20px);
        margin: 34px auto 50px;
    }

    .article {
        padding: 42px 20px;
        box-shadow: 0 15px 40px rgba(var(--theme-deep-rgb), .42), inset 0 0 0 4px rgba(255, 255, 255, .42);
    }

    .article::before,
    .article::after {
        width: 40px;
        height: 40px;
    }

    .article::before { top: 11px; left: 11px; }
    .article::after { right: 11px; bottom: 11px; }

    .section-heading {
        gap: 10px;
        margin-bottom: 21px;
        font-size: 20px;
    }

    .ticket-type .ticket-badge {
        padding: 6px 14px 5px 27px;
        font-size: 11px;
    }

    .ticket-type .ticket-badge::before {
        left: 10px;
    }

    .separate {
        margin-bottom: 32px;
        grid-template-columns: 1fr;
    }

    .separate dt,
    .separate dd {
        padding: 14px 16px;
    }

    .separate dt {
        border-bottom: 1px solid rgba(247, 218, 102, .5);
    }

    .separate dd {
        border-bottom: 1px solid rgba(var(--theme-main-rgb), .18);
    }

    .separate dd:last-of-type {
        border-bottom: 0;
    }

    .pc-only_br {
        display: none;
    }

    .d-flex {
        gap: 8px;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .article > .larger.tac {
        margin: 46px 0 23px;
        font-size: 18px;
    }

    .article > .larger.tac strong::before,
    .article > .larger.tac strong::after {
        margin: 0 .35em;
    }

    .kugiri_solid,
    .kugiri_dot {
        margin: 48px 0;
    }

    .morebtn_line_s {
        width: 100%;
        min-width: 0;
        padding-inline: 12px;
        overflow-wrap: anywhere;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}