/* 基本設定と背景 */
:root {
    --background-image: url('images/bg.png');
    --background-color: #0c0c0f;
    --card-background: rgba(22, 22, 28, 0.6);
    --glass-blur: backdrop-filter: blur(20px);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #aeb8c4;
    --primary-color: #4D8AFF;
    --positive-color: #00C853;
    --negative-color: #FF5252;
    --accent-color: #4D8AFF; /* 念のため追加 */
}
body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    margin: 0;
    background-color: var(--background-color);
    background-image: var(--background-image);
    background-size: cover;
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
a {
    color: var(--primary-color);
    text-decoration: none;
}
/* ヘッダー */
header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.logo-link {
    text-decoration: none;
    color: var(--text-primary);
}
header h1 {
    font-size: 2.2em;
    margin: 0;
    font-weight: 700;
}
.main-nav {
    display: flex;
    gap: 25px;
}
.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.1em;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}
.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}
.hero-section {
    background: rgba(12, 12, 15, 0.5);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
header .subtitle {
    font-size: 1.4em;
    color: var(--text-primary);
    font-weight: 600;
    margin: 0 0 10px 0;
}
.hero-text {
    font-size: 1.1em;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

/* メインコンテンツ */
main h2 {
    font-size: 1.8em;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

/* プロジェクトカード */
.project-card {
    background: var(--card-background);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    padding: 25px;
    text-decoration: none;
    color: var(--text-primary);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.card-content img {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
}
.card-content h3 {
    font-size: 1.5em;
    margin: 0;
}
.card-content .card-symbol {
    color: var(--text-secondary);
    font-size: 1em;
    margin-bottom: 15px;
}
.card-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1em;
    margin-top: auto;
}
.card-rating .grade {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.4em;
}
.card-rating .score {
    color: var(--text-secondary);
}
.project-card.coming-soon {
    opacity: 0.6;
}
.coming-soon .soon-text {
    font-size: 1.2em;
    color: var(--text-secondary);
    font-weight: bold;
}

/* フッター */
footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.footer-links {
    margin-top: 10px;
}
.footer-links a {
    color: var(--text-secondary);
    margin: 0 10px;
}
.footer-links a:hover {
    color: var(--text-primary);
}


/* 汎用スタイル */
.card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
}
/* 比較テーブル */
.comparison-section {
    padding-top: 20px;
}
.table-container {
    overflow-x: auto; /* スマホで横スクロール可能に */
}
#comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
#comparison-table th, #comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
#comparison-table th {
    font-size: 0.9em;
    color: var(--text-secondary);
    text-align: center;
}
#comparison-table td {
    font-size: 1em;
    text-align: center;
    vertical-align: middle;
}
.project-name {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: bold;
    text-align: left !important;
}
.project-name img {
    width: 32px;
    height: 32px;
}
.grade {
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 6px;
    display: inline-block;
}
.grade-aplus { background-color: rgba(255, 171, 0, 0.2); color: #FFAB00; }
.grade-a { background-color: rgba(77, 138, 255, 0.2); color: #4D8AFF; }
.grade-bplus { background-color: rgba(0, 200, 83, 0.2); color: #00C853; }
/* ▼▼▼【修正点】評価「B」のスタイルを追加 ▼▼▼ */
.grade-b { background-color: rgba(0, 200, 83, 0.2); color: #00C853; }


.rating-cell {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}
.score-bar-bg {
    width: 80px; height: 6px; background: rgba(0,0,0,0.3); border-radius: 3px;
}
.score-bar { height: 100%; border-radius: 3px; }
.score-bar.high { background: #00C853; }
.score-bar.medium { background: #4D8AFF; }
.score-bar.average { background: #FFAB00; }
.score-bar.low { background: #FF5252; }

.detail-link {
    font-weight: bold;
    transition: color 0.2s;
}
.detail-link:hover {
    color: var(--text-primary);
}