/* ===== travel.css — 旅行ページ専用スタイル ===== */
/* style.cssの設計トークン（#eef2ff, #5272e8, glassmorphism）を踏襲 */

/* ===== ページ基本設定 ===== */
html {
    scroll-behavior: smooth;
}

.travel-page {
    background-color: #eef2ff;
    min-height: 100vh;
}

/* ===== ページ全体ラッパー ===== */
#travel-wrapper {
    position: relative;
    z-index: 1;
}

/* ===== ヘッダー ===== */
.travel-header {
    padding: 4.5rem 1rem 2.5rem;
    text-align: center;
}

.travel-header-inner {
    display: inline-block;
    position: relative;
    padding: 2rem 3rem;
    background: rgba(255, 255, 255, 0.60);
    border: 1px solid rgba(100, 140, 255, 0.25);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow:
        0 4px 32px rgba(80, 120, 255, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    animation: header-fade-in 1.0s ease both;
}

.travel-header-inner h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg, #2c4aad 0%, #5272e8 50%, #7f5af0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.3rem;
}

.travel-tagline {
    font-size: 0.92rem;
    font-weight: 300;
    color: rgba(44, 74, 173, 0.65);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* ===== ホームへ戻るボタン ===== */
.back-home-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1.1rem;
    background: rgba(82, 114, 232, 0.1);
    border: 1px solid rgba(82, 114, 232, 0.25);
    border-radius: 999px;
    color: #2c4aad;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    margin-bottom: 1rem;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.back-home-btn:hover {
    background: rgba(82, 114, 232, 0.18);
    transform: translateX(-3px);
    box-shadow: 0 3px 12px rgba(82, 114, 232, 0.2);
    color: #2c4aad;
    border-bottom-color: rgba(82, 114, 232, 0.25);
}

/* ===== コンテナ ===== */
.travel-container {
    max-width: 1200px; /* 横並びのため少し広げる */
    margin: 0 auto;
    padding: 0 2rem 4rem;
    display: flex;
    flex-direction: row;
    gap: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin; /* Firefox用 */
    scrollbar-color: rgba(82, 114, 232, 0.3) transparent;
}

/* カスタムスクロールバー (Chrome/Safari/Edge用) */
.travel-container::-webkit-scrollbar {
    height: 8px;
}
.travel-container::-webkit-scrollbar-track {
    background: transparent;
}
.travel-container::-webkit-scrollbar-thumb {
    background: rgba(82, 114, 232, 0.2);
    border-radius: 10px;
}
.travel-container::-webkit-scrollbar-thumb:hover {
    background: rgba(82, 114, 232, 0.4);
}

/* ===== 旅行カード ===== */
.travel-card {
    scroll-margin-top: 4.5rem;
    flex: 0 0 350px; /* 幅を固定して横に並べる */
    scroll-snap-align: center;
    background: rgba(255, 255, 255, 0.60);
    border: 1px solid rgba(80, 120, 255, 0.18);
    border-radius: 18px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow:
        0 4px 28px rgba(80, 100, 200, 0.09),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.travel-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 10px 40px rgba(80, 100, 200, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* カードヘッダー */
.travel-card-header {
    padding: 1.5rem 1.75rem 1.2rem;
    border-bottom: 1px solid rgba(82, 114, 232, 0.12);
}

.trip-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2c4aad;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trip-title i {
    color: #e94560;
}

.trip-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.trip-date,
.trip-place {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: #6b7280;
    font-weight: 500;
}

.trip-date i {
    color: #5272e8;
}

.trip-place i {
    color: #e94560;
}

/* ===== スライドショー ===== */
.slideshow {
    position: relative;
    background: #0a0a1a;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.slides-track {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 矢印ボタン */
.slide-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.75);
    border: none;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #2c4aad;
    font-size: 0.9rem;
    backdrop-filter: blur(6px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    z-index: 10;
}

.slide-arrow:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.slide-prev {
    left: 0.85rem;
}

.slide-next {
    right: 0.85rem;
}

/* ドットインジケーター */
.slide-dots {
    position: absolute;
    bottom: 0.85rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: background 0.25s, transform 0.25s, border-color 0.25s;
}

.dot.active {
    background: #fff;
    transform: scale(1.3);
    border-color: rgba(255, 255, 255, 0.9);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* ===== 旅行詳細本文 ===== */
.trip-body {
    padding: 1.4rem 1.75rem 1.6rem;
    flex-grow: 1;
}

.trip-description {
    color: #374151;
    font-size: 0.95rem;
    line-height: 1.75;
}

.trip-tags {
    color: #5272e8;
    font-size: 0.82rem;
    font-weight: 500;
    margin-top: 0.6rem;
    opacity: 0.8;
}

/* ===== フッター ===== */
.travel-footer {
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.8rem;
    color: rgba(44, 74, 173, 0.5);
    border-top: 1px solid rgba(80, 120, 255, 0.12);
}

.travel-footer a {
    color: #2c4aad;
    font-size: 1.8rem;
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
    display: inline-block;
    margin-bottom: 0.8rem;
}

.travel-footer a:hover {
    color: #4f68e8;
    transform: scale(1.15);
}

/* ===== スマホ向け ===== */
@media (max-width: 600px) {
    .travel-container {
        padding: 0 1rem 3rem;
        gap: 1.5rem;
    }
    .travel-card {
        flex: 0 0 85vw; /* スマホでは画面の85%程度の幅にする */
    }
    .travel-header-inner {
        padding: 1.5rem 1.5rem;
    }
    .travel-card-header {
        padding: 1.2rem 1.25rem 1rem;
    }
    .trip-body {
        padding: 1.1rem 1.25rem 1.3rem;
    }
    .trip-meta {
        gap: 0.8rem;
    }
    .slide-arrow {
        width: 2.2rem;
        height: 2.2rem;
        font-size: 0.8rem;
    }
}