* {
    margin: 0;
    padding: 0;
    max-width: 100vw;
}

.img {
    max-width: 60vw;
    padding-top: 20px;
    padding-bottom: 20px;
}

iframe {
    max-width: 60vw;
}

#index {
    background-image: url('img/bg_home.jpg');
}

#ministry {
    background-image: url('img/bg_mosw.jpg');
}

#main-solver {
    max-width: 80vw;
    min-height: 800px;
}

#header {
    position: fixed;
    width: 100%;
    height: 100px;
    z-index: 999;
    background: linear-gradient(#9179F5, #e6646500);
    text-align: center;
    padding-top: 10px;
}

#footer {
    width: 100vw;
    height: 100px;
    background: #4447;
    color: #fff;
    z-index: 999;
    padding-top: 40px;
    margin-top: 20px;
    text-align: left;
    text-align: center;
    padding: 40px 0 0 0;
}

#headimg {
    max-width: 100vw;
    user-select: none;
    pointer-events: none;
    z-index: 0;
}

.header-img {
    z-index: 0;
}

*[id^='main-'] {
    background: #dadadabb;
    border-radius: 20px;
    max-width: 80vw;
    min-height: 75vh;
    margin-left: 10%;
    margin-right: 10%;
    padding-left: 40px;
    padding-right: 40px;
    padding-top: 40px;
    padding-bottom: 40px;
    z-index: 3;

}

#main-index, #main-ministry, .referal {
    text-align: center;
}

.article {
    text-align: left;
}

#main-sleep {
    justify-content: center;
    display: flex;
    padding-top: 100px;
}

video {
    padding-top: 20px;
    padding-bottom: 40px;
    max-height: 80vh;
}

h1, h2 {
    text-align: center;
    margin-bottom: 20px;
}

.btn {
    background-color: darkorchid;
    border: 1px solid;
    border-color:  mediumorchid;
    margin: 2px;
    min-width: 160px;
    height: 40px;
}

.btn:hover {
    background-color: mediumorchid;
    border-color:  mediumorchid;
    font-size: 2.1ex;
}

.btn:focus {
    background-color: orchid;
    border-color:  mediumorchid;
}

.btn:hover, .btn:active, .btn:focus, .btn:focus-visible, .btn:focus-within {
    outline: none;
}

.btn:disabled {
    background-color: lightgrey;
    border-color:  darkgrey;
}

#description {
    padding: 40px;
    float:left;
}

#payload {
    display: grid;
    grid-gap: 0;
    grid-template: repeat(2, 1fr) / repeat(0, 0fr);
    float:left;
}

#field {
    border: 1px solid;
    border-color: black;
    border-radius: 5px;
    display: grid;
    grid-gap: 0;
    grid-template: repeat(3, 1fr) / repeat(3, 1fr);
}

*[class^="grid-"] {
    display: grid;
    grid-gap: 0;
    grid-template: repeat(3, 1fr) / repeat(3, 1fr);
    margin: 2px;
}

.cell {
    padding: 0;
    width: 40px;
    height: 40px;
    text-align: center;
    font-weight: bold;
    border: 1px solid;
    border-color: palegreen;
    border-color: dimgrey;
}

.btn-solve {
    margin: 10px;
    background-color: green;
    border-color: white;
    min-width: 220px;
}

.btn-solve:hover {
    background-color: seagreen;
    border-color:  whitesmoke;
}

.btn-solve:focus {
    background-color: lightgreen;
    border-color:  white;
}

.btn-clear {
    min-width: 100px;
    max-width: 100px;
    margin: 10px;
    background-color: dodgerblue;
    border-color: white;
}

.btn-clear:hover {
    background-color: royalblue;
    border-color:  whitesmoke;
}

.btn-clear:focus {
    background-color: dodgerblue;
    border-color:  white;
}

.alert {
    font-weight: bold;
    visibility: hidden;
}

@media (max-width: 500px) {

    #footer {
        font-size: 10px;
    }

    #main-index, #main-ministry, #main-solver {
        margin-top: 40px;
    }

    .cell {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }
}