* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3498db;
    font-size: 2em;
}

h2 {
    color: #34495e;
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.5em;
}

h3 {
    color: #555;
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.2em;
    font-weight: normal;
}

p {
    margin-bottom: 15px;
    color: #666;
}

a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #2980b9;
    text-decoration: underline;
}

ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

li {
    margin-bottom: 10px;
    color: #666;
}

.profile-section {
    margin-bottom: 40px;
}

.links-section {
    display: flex;
    gap: 30px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.links-section h3 {
    margin: 0;
}

.project-link {
    text-decoration: none;
    color: inherit;
    display: block;
    margin-bottom: 20px;
}

.project-link:hover {
    text-decoration: none;
}

.project-link:hover .project-item {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.project-item {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid #3498db;
    transition: all 0.3s ease;
    cursor: pointer;
}

.project-item h2 {
    margin-top: 0;
    color: #2c3e50;
}

.project-item p {
    color: #666;
}

.project-item ul {
    margin-top: 15px;
}

.project-item li {
    margin-bottom: 15px;
}

.project-item li p {
    margin-top: 5px;
    margin-bottom: 0;
    font-size: 0.95em;
}

.terms-section {
    margin-bottom: 30px;
}

.terms-section h1 {
    font-size: 1.8em;
    margin-top: 30px;
}

.terms-section h1:first-child {
    margin-top: 0;
}

.terms-section ul {
    margin-top: 10px;
}

.project-detail {
    margin-top: 30px;
}

.project-detail h2 {
    color: #2c3e50;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 10px;
    margin-top: 30px;
}

.project-detail ul {
    margin-left: 20px;
}

.project-detail li {
    margin-bottom: 10px;
}

@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px;
    }

    h1 {
        font-size: 1.5em;
    }

    h2 {
        font-size: 1.3em;
    }

    .links-section {
        flex-direction: column;
        gap: 10px;
    }
}