@charset "UTF-8";

/* リセット */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

/* リンクのスタイル */
a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #007bff;
}

/* Fill in the Blank専用スタイル */
.fib-body {
    padding-top: 80px;
    background-color: #ffffff;
}

.fib-navbar {
    height: 80px;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-bottom: 1px solid #e9ecef;
}

.fib-logo-container {
    width: 120px;
}

.fib-logo-image {
    height: 40px;
    width: auto;
}

.fib-nav-container {
    gap: 30px;
}

.fib-nav-link {
    color: #333;
    font-weight: 500;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.fib-nav-link:hover {
    color: #007bff;
}

/* メインコンテンツ */
.fib-main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
}

.fib-hero-section {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.fib-hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.fib-hero-subtitle {
    font-size: 1.5rem;
    color: #666;
    font-weight: 300;
    margin-bottom: 0;
}

/* フッター */
.fib-footer {
    background-color: #333;
    color: #ffffff;
    text-align: center;
    padding: 30px 0;
    width: 100%;
    margin-top: auto;
}

.fib-footer-text {
    color: #ffffff;
    text-align: center;
    margin: 0;
    font-size: 14px;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .fib-body {
        padding-top: 70px;
    }
    
    .fib-navbar {
        height: 70px;
    }
    
    .fib-logo-image {
        height: 35px;
    }
    
    .fib-nav-container {
        gap: 20px;
    }
    
    .fib-nav-link {
        font-size: 14px;
    }
    
    .fib-hero-title {
        font-size: 2.5rem;
    }
    
    .fib-hero-subtitle {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .fib-nav-container {
        gap: 15px;
    }
    
    .fib-nav-link {
        font-size: 12px;
    }
    
    .fib-hero-title {
        font-size: 2rem;
    }
    
    .fib-hero-subtitle {
        font-size: 1rem;
    }
}