:root {
    /* チラシ配色：鮮やかなブルー × マゼンタピンク */
    --jgsdf-blue: #1863ac;
    --jgsdf-blue-dark: #0f4c86;
    --jgsdf-blue-deep: #0b3a68;
    --jgsdf-pink: #e21b7a;
    --jgsdf-pink-dark: #c2166a;
}

body {
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Kozuka Gothic Pr6N", sans-serif;
    color: #222;
}

/* ===== Navbar ===== */
.navbar-jgsdf { background-color: var(--jgsdf-blue); }
.navbar-jgsdf .navbar-brand { font-weight: 700; letter-spacing: .04em; color: #fff; }
.navbar-jgsdf .navbar-brand span { color: #ffd34d; }
.btn-x {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 50%;
    background: rgba(255,255,255,.14); transition: background .2s;
}
.btn-x:hover { background: rgba(255,255,255,.3); }
.btn-x svg { width: 18px; height: 18px; }

/* ===== Hero carousel ===== */
.hero { position: relative; color: #fff; }
.hero .carousel-item {
    height: 78vh; min-height: 460px;
    background-size: cover; background-position: center;
}
/* 画像は images/slides/ を差し替えてください */
.slide-1 { background-image: linear-gradient(120deg, rgba(15,76,134,.82), rgba(226,27,122,.35)), url('../images/slides/slide-01.png'); background-color: #1863ac; }
.slide-2 { background-image: linear-gradient(120deg, rgba(11,58,104,.82), rgba(226,27,122,.35)), url('../images/slides/slide-02.png'); background-color: #164f8c; }
.slide-3 { background-image: linear-gradient(120deg, rgba(15,76,134,.82), rgba(226,27,122,.3)),  url('../images/slides/slide-03.png'); background-color: #14477e; }

.hero__overlay {
    position: absolute; inset: 0; display: flex; align-items: center;
    z-index: 3; pointer-events: none;
}
.hero__overlay .container { pointer-events: auto; }
.hero__title {
    font-weight: 700; font-size: clamp(1.6rem, 4vw, 2.9rem);
    line-height: 1.4; text-shadow: 0 2px 12px rgba(0,0,0,.5);
}
.hero__lead {
    max-width: 640px; font-size: clamp(.95rem, 1.6vw, 1.1rem);
    text-shadow: 0 1px 8px rgba(0,0,0,.6);
}
.hero__badge {
    display: inline-block; background: var(--jgsdf-pink); color: #fff;
    font-weight: 700; padding: .35rem 1rem; border-radius: 999px; letter-spacing: .05em;
}

/* ===== Sections ===== */
.section-heading {
    font-weight: 700; color: var(--jgsdf-blue);
    position: relative; padding-bottom: .6rem; margin-bottom: 1.5rem;
}
.section-heading::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 64px; height: 4px; background: var(--jgsdf-pink); border-radius: 2px;
}

/* ===== Tabs ===== */
.nav-jgsdf .nav-link {
    color: var(--jgsdf-blue); font-weight: 600; border: none;
    border-bottom: 3px solid transparent; border-radius: 0; padding: .9rem 1.2rem;
}
.nav-jgsdf .nav-link.active {
    color: var(--jgsdf-pink); background: transparent; border-bottom-color: var(--jgsdf-pink);
}
.nav-jgsdf .nav-link:hover { border-bottom-color: rgba(226,27,122,.5); }

/* ===== Venue cards ===== */
.venue-card {
    border: 1px solid #e6e6e6; border-radius: 14px; overflow: hidden;
    transition: transform .2s, box-shadow .2s; height: 100%;
}
.venue-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(24,99,172,.18); }
.venue-card__head {
    background: var(--jgsdf-blue); color: #fff; padding: .9rem 1.1rem;
    display: flex; align-items: center; gap: .55rem; font-weight: 700;
}
.venue-card__head i { color: #ffd34d; font-size: 1.3rem; }
.venue-card__body { padding: 1.1rem; }
.venue-card__date { color: var(--jgsdf-pink); font-weight: 700; }
.venue-card__map iframe { width: 100%; height: 240px; border: 0; display: block; }

.btn-reserve { background: var(--jgsdf-pink); color: #fff; font-weight: 700; border: none; }
.btn-reserve:hover { background: var(--jgsdf-pink-dark); color: #fff; }

/* ===== Feature strip ===== */
.feature-strip { background: #eef4fb; }
.feature-item i { font-size: 2rem; color: var(--jgsdf-blue); }

/* ===== Footer ===== */
.site-footer { background: var(--jgsdf-blue-deep); color: #d3e0ef; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { color: #ffd34d; }
.site-footer h5 { color: #fff; font-weight: 700; font-size: 1rem; letter-spacing: .04em; }
.footer-x {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,.12);
}
.footer-x:hover { background: var(--jgsdf-pink); }
.footer-x svg { width: 18px; height: 18px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); font-size: .85rem; color: #9fb6d0; }

.back-to-top {
    position: fixed; right: 24px; bottom: 24px;
    width: 46px; height: 46px; border-radius: 50%;
    background: var(--jgsdf-pink); color: #fff; display: none;
    align-items: center; justify-content: center; z-index: 1030;
    box-shadow: 0 6px 16px rgba(0,0,0,.2);
}
.back-to-top:hover { background: var(--jgsdf-pink-dark); color: #fff; }

@media (prefers-reduced-motion: reduce) {
    .venue-card, .btn-x, .btn-reserve { transition: none; }
}
.venue-card__map img { border-bottom-left-radius: 14px; border-bottom-right-radius: 14px; }
.flyer-img { width: 100%; max-width: 100%; height: auto; display: block; }

.carousel.nav-off .carousel-control-prev,
.carousel.nav-off .carousel-control-next { display: none; }

/* ===== 横はみ出し防止（画面にフィット） ===== */
html, body {
    overflow-x: hidden;   /* 横スクロールを止める */
    width: 100%;
}
* {
    box-sizing: border-box;   /* paddingを含めて幅計算 */
}
img, iframe, svg, .flyer-img, .venue-card__map iframe {
    max-width: 100%;   /* メディアが枠をはみ出さない */
}