/* ==========================================================================
   Who We Are v2 - ベースCSS（最小限のリセット＋ユーティリティのみ）
   デザイン固有のスタイルは who-we-are-v2-design-N.css に記述
   ========================================================================== */

/* Box model reset */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Typography base */
.wwa-page {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Noto Sans JP', 'Poppins', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Section/container base structure */
.wwa-section {
    display: block;
}

.wwa-container {
    padding: 0 2rem;
}

.wwa-main {
    display: block;
}

/* Responsive utilities */
.desktop-only {
    display: block;
}
.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }
    .mobile-only {
        display: block !important;
    }
    .wwa-container {
        padding: 0 1rem;
    }
}

/* Lightbox base (design-agnostic) */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.9);
}

.lightbox-overlay.visible {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2.5rem;
    color: white;
    cursor: pointer;
    z-index: 10001;
    line-height: 1;
}

/* Back-to-top base */
.back-to-top {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 999;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.back-to-top i {
    font-size: 1.2rem;
}

/* Band introduction - hidden by default, shown by design-specific CSS */
.band-introduction {
    display: none;
}

/* Scroll animation base */
.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}