:root {
    --bg-color: #f4f7f6;
    --card-bg: #ffffff;
    --text-color: #333333;
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    margin-bottom: 30px;
    font-size: 24px;
    text-align: center;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1000px;
    width: 100%;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    margin-top: 0;
    margin-bottom: 10px;
    color: #222;
}

.card-path {
    font-size: 12px;
    color: #888;
    font-family: monospace;
    background: #f8f9fa;
    padding: 4px 8px;
    border-radius: 4px;
    word-break: break-all;
    margin-bottom: 12px;
}

.card-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 20px;
    flex-grow: 1;
}

.btn {
    display: block;
    text-align: center;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    padding: 12px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.btn:hover {
    background-color: var(--primary-hover);
}