html {
    height: 100%;
}

:root {
    --background: rgb(193, 252, 255); /* main page background + results border */
    --backdrop-color: rgb(105, 224, 230); /* question background */
    --check-inner-color: rgb(87, 196, 201);
    --button-color: rgb(41, 167, 172);
    --large-check-size: 50px;
    --med-check-size: 40px;
    --small-check-size: 30px;
    --check-inner-diff: 12px;

}

@font-face {
    font-family: 'DosisLight';
    src: url('DosisLight-3jdp.ttf');
}

body {
    background: var(--background);
    text-align: center;
    font-family: 'DosisLight', sans-serif;
    position: relative;
    font-size: 24px;
    height: 100%;
    margin: 10px;
    padding: 10px;
}


/* box based on https://stackoverflow.com/questions/74643594/how-can-i-make-a-cut-corner-with-border-radius */
.box {
    --c: 10px; /* the corner */
    --b: 2px; /* border thickness*/
    --o: -8px, -5px; /* offset*/
    --border-color: white;
    --background: var(--backdrop-color);
    width: 60%;
    display: inline-block;
    position: relative;
    z-index: 0;
    padding: 1.5em 0.5em;
    margin-top: 20px;
    margin-left: auto;
    margin-right: auto;
}

.box:before,
.box:after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    clip-path: polygon(var(--c) 0%, 100% 0%, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0% 100%, 0% calc(100% - var(--c)), 0% var(--c));
    background: var(--background);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.box:after {
    --grad: transparent 49.5%, var(--border-color) 50%;
    background: linear-gradient(to top left, var(--grad)) top left,
    linear-gradient(to bottom right, var(--grad)) bottom right;
    background-size: calc(var(--c) - var(--b)) calc(var(--c) - var(--b));
    background-repeat: no-repeat;
    border: var(--b) solid var(--border-color);
    transform: translate(var(--o));
}


.box.results {
    --border-color: var(--backdrop-color);
    --background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 75%;
}

/* ==== SILVER KEY GRAPHIC ==== */
/* silver key styling based on https://stackoverflow.com/questions/19599551/gray-out-a-section-of-an-image-with-css */
.key-container {
    position: relative;
    height: 20vh;
    width: 20%;
    overflow: hidden;
    display: inline-block;
    margin-top: 1%;
    margin-bottom: 1%;
}

.key-full {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    object-fit: contain;
    z-index: 2;
    overflow: hidden;
    clip-path: inset(100% 0 0 0);
}

.key-empty {
    position: absolute;
    bottom: 0;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 1;
    clip-path: inset(0 0 0 0);
}


/* ==== CUSTOM RADIO BUTTONS ==== */
/* based on https://www.w3schools.com/howto/howto_css_custom_checkbox.asp */
/* Customize the label (the container) */
.container {
    display: block;
    position: relative;
    width: var(--check-size);
    height: var(--check-size);
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.container.large {
    --check-size: var(--large-check-size);
}

.container.med {
    --check-size: var(--med-check-size);
}

.container.small {
    --check-size: var(--small-check-size);
}

/* Hide the browser's default radio button */
.container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

/* Create a custom radio button */
.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: var(--check-size);
    width: var(--check-size);
    background-color: #eee;
    border-radius: 50%;
}

.container:hover input:not(:checked) ~ .arc, .container:hover input:not(:checked) ~ .arc2 {
    opacity: 1;
    animation: arcHovered 3s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
}


.container input:checked ~ .arc, .container:hover input:checked ~ .arc2 {
    animation: arcClicked 0.45s;
    transition-property: opacity;
    transition-delay: 0.45s;
    opacity: 0;
}


/* Create the indicator (the dot/circle - hidden when not checked) */
.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

/* Show the indicator (dot/circle) when checked */
.container input:checked ~ .checkmark:after {
    display: block;
    animation: circleClicked 1.5s;
}

/* Style the indicator (dot/circle) */
.container .checkmark:after {
    top: 50%;
    left: 50%;
    width: calc(var(--check-size) - var(--check-inner-diff));
    height: calc(var(--check-size) - var(--check-inner-diff));
    border-radius: 50%;
    background: var(--check-inner-color);;
    transform: translate(-50%, -50%);

}


@keyframes radioHovered {
    0% {
        transform: scale(.5);
    }
    50% {
        transform: scale(1.5);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes radioPressed {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.5);
    }
    100% {
        transform: scale(1);
    }
}


.arc, .arc2 {
    width: calc(var(--check-size) - var(--check-inner-diff));
    height: calc(var(--check-size) - var(--check-inner-diff));
    border-radius: 50%;
    border: 1px solid transparent;

    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
}

.arc {
    border-left-color: var(--check-inner-color);;
}

.arc2 {
    border-right-color: var(--check-inner-color);
}

.button {
    border-radius: 25%;
    background-color: white;
    border-color: var(--button-color);
    font-size: 16px;
    font-family: 'DosisLight', sans-serif;
    margin-right: 15px;

}

@keyframes arcHovered {
    from {
        transform: translate(-50%, -50%) rotate(0deg)
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg)
    }
}

@keyframes arcClicked {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
}

@keyframes circleClicked {
    0% {
        transform: translate(-50%, -50%) scale(0)
    }
    15% {
        transform: translate(-50%, -50%) scale(0.15)
    }
    50% {
        transform: translate(-50%, -50%) scale(1.25)
    }
    100% {
        transform: translate(-50%, -50%) scale(1)
    }
}

@keyframes cycle {
    from {
        clip-path: inset(0% 0 0 0);
    }
    to {
        clip-path: inset(100% 0 0 0);
    }
}

.answers {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}