body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

.header {
    background-color: #fff;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 30px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    text-decoration: none;
}

.tabs {
    display: flex;
    justify-content: center;
    padding: 10px 0;
    background-color: #fff;
    border-bottom: 1px solid #ddd;
}

.tab {
    color: #5f6368;
    font-size: 16px;
    text-decoration: none;
    padding: 10px 20px;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.tab:hover {
    background-color: #e8e8e8;
}

.active-tab {
    border-bottom: 2px solid #1a73e8;
    color: #1a73e8;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 3rem 1rem;
    background-color: #f5f5f5;
}

.info-box {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 2rem 2.5rem;
    width: 100%;
    max-width: 1100px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: left;
    transition: box-shadow 0.3s ease;
}

.info-box:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.info-box h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #222;
    margin-bottom: 1rem;
}

.info-box p {
    font-size: 1.05rem;
    color: #444;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .header {
        padding: 10px 15px;
    }

    .logo {
        font-size: 18px;
    }

    .tab {
        padding: 10px 15px;
        font-size: 15px;
    }

    main {
        padding: 2rem 1rem;
    }

    .info-box {
        padding: 1.5rem;
    }

    .info-box h2 {
        font-size: 1.5rem;
    }

    .info-box p {
        font-size: 1rem;
    }
}