@charset "UTF-8";

/**
 * スタイルはモバイルファーストで定義する。
 **/

/*================================================
  Base Style (Mobile-First)
=================================================*/
body {
    /* font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "Helvetica", "Arial", sans-serif; */
    line-height: 1.5;
    background-color: #fff;
    color: #333;
}

/*================================================
  Header
=================================================*/
.gallery-header {
    text-align: center;
    margin-bottom: 40px;
}

.gallery-header .subtitle {
    font-size: 1rem;
    color: #888;
    letter-spacing: 0.1em;
}


/*================================================
  Filter Navigation
=================================================*/
.filter-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.filter-nav__item {
    margin: 5px;
    padding: 6px 14px;
    cursor: pointer;
    border: 1px solid #ddd;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-nav__item:hover {
    background-color: #f0f0f0;
}

.filter-nav__item.is-active {
    background-color: #333;
    color: #fff;
    border-color: #333;
}


/*================================================
  Grid Layout (Isotope)
=================================================*/
.grid {
    margin: 0 auto;
}

/* clear fix */
.grid:after {
    content: '';
    display: block;
    clear: both;
}

/* ---- .grid-item ---- */
.grid-item {
    width: 50%;
    padding: 10px;
    box-sizing: border-box;
}

.grid-item-inner {
    position: relative;
    overflow: hidden;
    display: block;
}

.grid-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.grid-item:hover img {
    transform: scale(1.05);
}