/* =====================================================
   ONEBEACH — Global Animations
   ===================================================== */

/* =====================================================
   ページ遷移: 上下スプリット
   ===================================================== */
#ob-curtain-top,
#ob-curtain-bottom {
    position: fixed;
    left: 0;
    right: 0;
    height: 52%;
    z-index: 9999;
    pointer-events: none;
}

/* デフォルト: 画面外（非表示） */
#ob-curtain-top {
    top: 0;
    background: linear-gradient(150deg, #e8f4f8 0%, #f5f2ec 100%);
    transform: translateY(-102%);
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}
#ob-curtain-bottom {
    bottom: 0;
    background: linear-gradient(330deg, #d6eeff 0%, #f5f2ec 100%);
    transform: translateY(102%);
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

/* 初期状態: 画面を覆っている (is-enter はJSが即座に削除) */
#ob-curtain-top.is-enter,
#ob-curtain-bottom.is-enter {
    transform: translateY(0);
    transition: none;
}

/* 開く（画面外へ退場） */
#ob-curtain-top.is-out    { transform: translateY(-102%); }
#ob-curtain-bottom.is-out { transform: translateY(102%); }

/* 閉じる（遷移時に登場） */
#ob-curtain-top.is-leaving,
#ob-curtain-bottom.is-leaving {
    transform: translateY(0);
    transition: transform 0.42s cubic-bezier(0.76, 0, 0.24, 1);
}

/* 中央ロゴ */
.ob-curtain-logo-wrap {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.ob-curtain-logo-wrap.is-visible { opacity: 1; }

/* =====================================================
   スクロール登場アニメーション
   ===================================================== */
.ob-reveal {
    opacity: 0;
    transform: translateY(30px);
    /* transition は後述の .is-visible で定義 */
}
.ob-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.34, 1.1, 0.64, 1),
                transform 0.6s cubic-bezier(0.34, 1.1, 0.64, 1);
}

/* 横スライド（左から） */
.ob-reveal-left {
    opacity: 0;
    transform: translateX(-34px);
}
.ob-reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.6s cubic-bezier(0.34, 1.1, 0.64, 1),
                transform 0.6s cubic-bezier(0.34, 1.1, 0.64, 1);
}

/* 横スライド（右から） */
.ob-reveal-right {
    opacity: 0;
    transform: translateX(34px);
}
.ob-reveal-right.is-visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.6s cubic-bezier(0.34, 1.1, 0.64, 1),
                transform 0.6s cubic-bezier(0.34, 1.1, 0.64, 1);
}

/* ズームイン */
.ob-reveal-zoom {
    opacity: 0;
    transform: scale(0.9);
}
.ob-reveal-zoom.is-visible {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.55s cubic-bezier(0.34, 1.1, 0.64, 1),
                transform 0.55s cubic-bezier(0.34, 1.1, 0.64, 1);
}

/* フェードのみ */
.ob-fade {
    opacity: 0;
}
.ob-fade.is-visible {
    opacity: 1;
    transition: opacity 0.8s ease;
}

/* 遅延バリエーション (is-visible が付いた後に適用されるよう transition-delay で制御) */
.ob-reveal[data-delay="1"].is-visible,
.ob-reveal-left[data-delay="1"].is-visible,
.ob-reveal-right[data-delay="1"].is-visible,
.ob-reveal-zoom[data-delay="1"].is-visible,
.ob-fade[data-delay="1"].is-visible { transition-delay: 0.07s; }

.ob-reveal[data-delay="2"].is-visible,
.ob-reveal-left[data-delay="2"].is-visible,
.ob-reveal-right[data-delay="2"].is-visible,
.ob-reveal-zoom[data-delay="2"].is-visible,
.ob-fade[data-delay="2"].is-visible { transition-delay: 0.14s; }

.ob-reveal[data-delay="3"].is-visible,
.ob-reveal-left[data-delay="3"].is-visible,
.ob-reveal-right[data-delay="3"].is-visible,
.ob-reveal-zoom[data-delay="3"].is-visible,
.ob-fade[data-delay="3"].is-visible { transition-delay: 0.21s; }

.ob-reveal[data-delay="4"].is-visible,
.ob-reveal-left[data-delay="4"].is-visible,
.ob-reveal-right[data-delay="4"].is-visible,
.ob-reveal-zoom[data-delay="4"].is-visible,
.ob-fade[data-delay="4"].is-visible { transition-delay: 0.28s; }

.ob-reveal[data-delay="5"].is-visible,
.ob-reveal-left[data-delay="5"].is-visible,
.ob-reveal-right[data-delay="5"].is-visible,
.ob-reveal-zoom[data-delay="5"].is-visible,
.ob-fade[data-delay="5"].is-visible { transition-delay: 0.35s; }

.ob-reveal[data-delay="6"].is-visible,
.ob-reveal-left[data-delay="6"].is-visible,
.ob-reveal-right[data-delay="6"].is-visible,
.ob-reveal-zoom[data-delay="6"].is-visible,
.ob-fade[data-delay="6"].is-visible { transition-delay: 0.42s; }

/* =====================================================
   ヒーローテキスト
   ===================================================== */
.ob-hero-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px) rotate(-2deg);
}
.ob-hero-word.is-visible {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
    transition: opacity 0.5s cubic-bezier(0.34, 1.3, 0.64, 1),
                transform 0.5s cubic-bezier(0.34, 1.3, 0.64, 1);
}

/* =====================================================
   カードホバー: ob-reveal と共存できるよう分離
   ===================================================== */
.ob-card-hover {
    will-change: transform;
}
/* reveal 完了前は hover 効果を無効化 */
.ob-card-hover:not(.is-visible):hover { transform: none !important; }
/* reveal 完了後にホバーエフェクト適用 */
.ob-card-hover.is-visible {
    transition: opacity 0.6s cubic-bezier(0.34, 1.1, 0.64, 1),
                transform 0.6s cubic-bezier(0.34, 1.1, 0.64, 1),
                box-shadow 0.35s ease;
}
.ob-card-hover.is-visible:hover {
    transform: translateY(-7px) scale(1.01) !important;
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.12);
}

/* =====================================================
   画像ズームホバー
   ===================================================== */
.ob-img-zoom {
    overflow: hidden;
}
.ob-img-zoom img {
    transition: transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}
.ob-img-zoom:hover img {
    transform: scale(1.07);
}

/* =====================================================
   リンクアンダーライン
   ===================================================== */
.ob-link-line {
    position: relative;
    text-decoration: none;
}
.ob-link-line::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.32s cubic-bezier(0.34, 1.1, 0.64, 1);
}
.ob-link-line:hover::after { width: 100%; }

/* =====================================================
   ボタン波紋
   ===================================================== */
.ob-ripple {
    position: relative;
    overflow: hidden;
}
.ob-ripple-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ob-ripple-anim 0.5s ease-out forwards;
    pointer-events: none;
}
@keyframes ob-ripple-anim {
    to { transform: scale(4); opacity: 0; }
}

/* =====================================================
   フローティング
   ===================================================== */
.ob-float      { animation: ob-float 4s ease-in-out infinite; }
.ob-float-slow { animation: ob-float 7s ease-in-out infinite; }
@keyframes ob-float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-9px); }
}

/* =====================================================
   prefers-reduced-motion
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
    #ob-curtain-top,
    #ob-curtain-bottom,
    .ob-curtain-logo-wrap,
    .ob-reveal,
    .ob-reveal-left,
    .ob-reveal-right,
    .ob-reveal-zoom,
    .ob-fade,
    .ob-hero-word,
    .ob-card-hover,
    .ob-img-zoom img,
    .ob-float,
    .ob-float-slow {
        transition: none !important;
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
    #ob-curtain-top,
    #ob-curtain-bottom,
    .ob-curtain-logo-wrap { display: none !important; }
}