body {
    font-family: "IBM Plex Sans Thai", sans-serif;
    background: #fefcf1de;
    margin: 0;
}

#packages {
    max-width: 1200px;
    margin: 40px auto;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 32px 24px;
}

h2 {
    text-align: center;
    color: #1976d2;
    margin-bottom: 32px;
}

.seasons {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.seasons button {
    background: linear-gradient(90deg, #59a2d3,#2980b9 );
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: background 0.2s, transform 0.2s;
}

.seasons button:hover,
.seasons button.active {
    background: linear-gradient(90deg, #ff4e50, #f9d423);
    transform: scale(1.05);
}

.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
    min-height: 120px;
}

.card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    width: 300px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
}

.card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card-content {
    padding: 18px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    margin: 0 0 8px 0;
    color: #1976d2;
}

.card-content p {
    margin: 0 0 6px 0;
    color: #333;
}

.price {
    font-weight: bold;
    color: #d84315;
}

.btn {
    margin-top: 12px;
    padding: 8px 18px;
    background: #c49a5c;
    color: #fff;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn:hover {
    background: #a67c3c;
}

.menu-section {
    text-align: center;
    margin: 24px 0;
}

.menu-section a {
    text-decoration: none;
    color: #1976d2;
    font-weight: bold;
}

#backToTop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #1976d2;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: none;
}



@media (max-width: 900px) {
    .cards {
        gap: 16px;
    }

    .card {
        width: 90vw;
        max-width: 350px;
    }
}

@media (max-width: 600px) {
    #packages {
        padding: 16px 6px;
    }

    h2 {
        font-size: 1.3rem;
    }

    .seasons button {
        padding: 10px 16px;
        font-size: 1rem;
    }
}