body {
    font-family: 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

.navbar-brand img {
    max-height: 40px;
}

.hero {
    padding: 4rem 1rem;
    background-color: #e9ecef;
    border-radius: .3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-text {
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: bold;
}

.hero .lead {
    font-size: 1.5rem;
}

.hero img {
    max-width: 450px; /* Max size on desktop */
    width: 100%; /* Responsive width */
    height: auto;
    border-radius: .3rem;
}

.section-title {
    text-align: center;
    margin-top: 4rem;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    font-weight: bold;
}

.feature-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: .5rem;
    padding: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, .075);
}

.feature-card img {
    max-width: 100%;
    height: auto;
    border-radius: .3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
    background-color: #343a40;
    color: #fff;
}

footer a {
    color: #fff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive styles for mobile */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
}