@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai&display=swap');

body {
    font-family: 'Noto Sans Thai', sans-serif;
    background-image: url("asset/bg.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 50px 20px;
    box-sizing: border-box;
    border-radius: 5px;
    background-color:rgba(255,255,255,0.8);
    box-shadow: 0 3px 15px rgba(0,0,0,0.5);
}

h1, h3 {
    color: #1A5276;
}

p {
    color: #707B7C;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: -1;
    background-image: url("asset/footer.png");
    background-repeat: repeat-x;
    background-origin: bottom center;
    background-size: contain;
    height: 320px;
    width: 100%;
}

@media screen and (max-width: 1400px) {
    footer {
        height: 200px;
    }
}

@media screen and (max-width: 900px) {
    .container {
        width: 95%;
    }

    h1 {
        font-size: 28px;
    }

    footer {
        height: 130px;
    }

    .row {
        display: block;
        padding: 0;
    }

    .col {
        width: 100%;
        padding: 0;
    }

    button {
        width: 100%;
    }
}