/* 全体のベース */
body {
    background-color: #161616;
    color: #e0e0e0;
    font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
    margin: 0;
    padding: 0;
}

/* 固定ヘッダー */
header {
    background-color: #202020;
    padding: 0.8rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between; /* 左右に分離して見切れ防止 */
    border-bottom: 1px solid #333;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-sizing: border-box;
}

header .logo {
    height: 40px;
    margin-right: 0.8rem;
}

header .site-title {
    font-size: 1.5rem;
    color: #fff;
    margin: 0;
}

/* ヘッダーナビゲーション */
.header-nav {
    display: flex;
    gap: 1rem;
    margin-left: auto; /* 念のため維持 */
}

.header-nav a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.header-nav a:hover {
    background-color: #333;
    color: #fff;
}

/* ヘッダーの高さ分余白確保 */
main {
    padding-top: 70px;
}

.scenario-list {
    list-style: none;
    margin: 0;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.scenario-item {
    background-color: #202020;
    border-radius: 10px;
    box-shadow: 0 0 8px rgba(0,0,0,0.6);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.scenario-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 12px rgba(0,0,0,0.8);
}

.scenario-inner {
    padding: 1.5rem;
}

.scenario-inner h2 {
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 0.8rem;
}

.scenario-info,
.scenario-tags,
.scenario-links {
    list-style: none;
    padding: 0;
    margin: 0.4rem 0;
}

.scenario-info li {
    font-size: 0.9rem;
    color: #bbb;
    margin-bottom: 0.2rem;
}

.scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0.8rem 0;
}

.scenario-tags li {
    background-color: #333;
    color: #ddd;
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
}

.scenario-desc {
    font-size: 0.9rem;
    color: #ccc;
    margin: 0.8rem 0;
    line-height: 1.6;
}

.scenario-links li {
    margin: 0.4rem 0;
}

.scenario-links a {
    color: #4da3ff;
    text-decoration: none;
    transition: color 0.2s ease;
}

.scenario-links a:hover {
    color: #82c4ff;
}

/* フッター */
footer {
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid #333;
    font-size: 0.85rem;
    color: #aaa;
}

/* クレジットページ用 */
.credit-section {
    padding: 2rem;
}

.credit-section h2 {
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 1rem;
}

.credit-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1.2rem;
}

.credit-list li {
    margin: 0;
}

.credit-list a {
    color: #4da3ff;
    text-decoration: none;
    transition: color 0.2s ease;
}

.credit-list a:hover {
    color: #82c4ff;
}