:root {
    --screenW:100vw;
}

body {
    font-family: Arial, sans-serif;
}

.input {
    height: 40px;
    border-radius: 20px;
    border: solid 1px #cccccc;
    background: transparent;
    color: white;
    padding:0 10px;
}

input:focus, textarea:focus, select:focus {
    outline: none;
}

.main {
    display: flex;
    flex-direction: column;
    width: var(--screenW);
}

.flex-row {
    display: flex;
    flex-direction: row;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-center-align {
    display: flex;
    align-items: center;
}

.flex-center-justify {
    display: flex;
    justify-content: center;
}

.btn {
    cursor: pointer;
}

.btn:active {
    transform: scale(0.99);
}

/*PC*/
@media (min-aspect-ratio: 1) {
    :root {
        --screenW:400px;
    }
}