@import url('https://fonts.googleapis.com/css2?family=Mochiy+Pop+P+One&display=swap');
* {
    font-family: 'Mochiy Pop P One', sans-serif;
    box-sizing: border-box;
}
html {
    --mainHue: 32;
    /* background-image: url('../icons/512.orange.png'); */
    background-position: center calc(100% + 96px);
    background-repeat: no-repeat;
    height: 100dvh;
    background-color: hsl(var(--mainHue), 97%, 90%);
}
body {
    height: 100%;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
}
header {
    background-color: hsl(var(--mainHue), 97%, 66%);
}
.select-levels {
    --cols: 12;
    display: grid;
    grid-template-columns: repeat(var(--cols), 1fr);
    gap: 0.25rem;
    padding: 0.5rem;
}
.select-levels label {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255,255,255,0.6);
    color: rgb(0, 0, 0);
    font-weight: 700;
    border-radius: 0.25rem;
    padding: 0.5rem 0;
}
.kumon-level {
    --gap-size: 1cqi;
    --fg-color: #555555;
    --border-radius: 0.4rem;
    --hue: 32;
    --columns: 10;
    display: none;
    grid-template-columns: repeat(var(--columns), 1fr);
    gap: 0.5rem;
    padding: 0.5rem;
}
.kumon-level .level-radio {
    display: none;
}
.kumon-level:has(.level-radio:checked) {
    display: grid;
}
.kumon-level .level-title {
    font-size: 5cqh;
    font-weight: 900;
    text-align: center;
    grid-column: span var(--columns);
}
.kumon-level button {
    container-type: inline-size;
    padding: 0.5rem 0;
    border-radius: 0.5rem;
    background: linear-gradient(hsl(var(--hue), 100%, 95%), hsl(var(--hue), 100%, 80%));
    border: 0.2rem solid rgba(0,0,0,0.3);
    box-shadow: 0 0 0.5rem rgba(0,0,0,0.2);
}
.kumon-level button span {
    font-size: 1.25rem;
    font-weight: 900;
    pointer-events: none;
}
.kumon-level button.btn-ws[playing] span {
    visibility: hidden;
}
.kumon-level button.btn-ws[playing] {
    background-image: url('../images/speaker.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
    background-color: hsl(var(--hue), 100%, 70%);
}
.kumon-level button.btn-ws[paused] {
    background-image: url('../images/pause.svg');
    background-color: hsl(var(--hue), 50%, 70%);
}
footer {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
}
audio {
    width: 90cqw;
    margin: 1rem auto ;
}
#clock {
    font-size: 10cqmin;
    font-weight: 700;
}
#playing {
    font-size: 5cqmin;
}
@media screen and ( orientation: portrait ) {
    .select-levels { --cols: 6; }
    .kumon-level { --columns: 5; }    
}