:root {
    color-scheme: dark;
    font-family: "Courier New", Courier, monospace;
    background: #000;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
    background: #000;
}

body {
    color: #fff;
}

button {
    font: inherit;
}

#maze,
#maze-canvas,
#maze-canvas canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
}

#maze-canvas canvas {
    display: block;
}

#audio-gate {
    position: fixed;
    z-index: 2;
    top: 50%;
    left: 50%;
    display: grid;
    width: min(380px, calc(100vw - 32px));
    padding: 22px 28px 20px;
    color: #fff;
    background: #000;
    border: 1px solid #fff;
    border-radius: 0;
    transform: translate(-50%, -50%);
    cursor: pointer;
    letter-spacing: 0;
    transition: color 120ms linear, background 120ms linear;
}

#audio-gate:hover,
#audio-gate:focus-visible {
    color: #000;
    background: #fff;
    outline: none;
}

#audio-gate span {
    font-size: 18px;
    line-height: 1;
}

#audio-gate small {
    margin-top: 11px;
    font-size: 11px;
    line-height: 1;
}

#audio-gate b {
    margin-top: 18px;
    font-size: 10px;
    line-height: 1.45;
    font-weight: 400;
}

#audio-gate i {
    margin-top: 15px;
    font-size: 9px;
    line-height: 1;
    font-style: normal;
    color: rgba(255, 255, 255, 0.55);
}

#audio-gate:hover i,
#audio-gate:focus-visible i {
    color: rgba(0, 0, 0, 0.62);
}

#audio-gate em {
    margin-top: 14px;
    font-size: 9px;
    line-height: 1.45;
    font-style: normal;
    color: #ff6868;
}

#audio-gate:hover em,
#audio-gate:focus-visible em {
    color: #8f0000;
}

#audio-gate.is-entered {
    opacity: 0;
    pointer-events: none;
    transition: opacity 500ms ease;
}

#status {
    position: fixed;
    z-index: 2;
    right: 16px;
    bottom: 14px;
    font-size: 9px;
    line-height: 1;
    color: rgba(255, 255, 255, 0.62);
    pointer-events: none;
}

#signal-counter {
    position: fixed;
    z-index: 2;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: baseline;
    gap: 9px;
    color: #ffe600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 300ms linear;
}

body[data-entered="true"] #signal-counter {
    opacity: 0.72;
}

#signal-counter span {
    font-size: 12px;
    line-height: 1;
}

#signal-counter strong {
    font-size: 26px;
    line-height: 1;
    font-weight: 400;
}

#signal-counter.is-hit {
    opacity: 1;
    animation: signal-hit 420ms steps(2, end);
}

#life-counter {
    position: fixed;
    z-index: 2;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: baseline;
    gap: 9px;
    color: rgba(255, 255, 255, 0.72);
    opacity: 0;
    pointer-events: none;
    transition: opacity 300ms linear, color 160ms linear;
}

body[data-entered="true"] #life-counter {
    opacity: 1;
}

#life-counter span {
    font-size: 12px;
    line-height: 1;
}

#life-counter strong {
    font-size: 26px;
    line-height: 1;
    font-weight: 400;
}

#life-counter.is-hit {
    color: #ff3232;
    animation: life-hit 360ms steps(2, end);
}

#life-counter.is-healed {
    color: #ff6666;
    animation: life-healed 520ms steps(3, end);
}

body[data-ended] #signal-counter,
body[data-ended] #life-counter,
body[data-ended] #status {
    opacity: 0;
}

@keyframes life-hit {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-6px, 2px); }
    50% { transform: translate(4px, -2px); }
    75% { transform: translate(-2px, 1px); }
    100% { transform: translate(0, 0); }
}

@keyframes life-healed {
    0% { transform: scale(1); }
    35% { transform: scale(1.22); }
    70% { transform: scale(0.94); }
    100% { transform: scale(1); }
}

@keyframes signal-hit {
    0% { transform: translate(0, 0); filter: none; }
    20% { transform: translate(7px, -2px); filter: contrast(2); }
    40% { transform: translate(-5px, 3px); }
    60% { transform: translate(3px, 1px); filter: brightness(2); }
    100% { transform: translate(0, 0); filter: none; }
}

@media (max-width: 600px) {
    #audio-gate {
        padding: 19px 20px 17px;
    }

    #status {
        right: 10px;
        bottom: 10px;
    }

    #signal-counter {
        top: 13px;
        left: 13px;
    }

    #signal-counter strong,
    #life-counter strong {
        font-size: 22px;
    }

    #signal-counter span,
    #life-counter span {
        font-size: 10px;
    }

    #life-counter {
        top: 13px;
        right: 13px;
    }
}

@media (prefers-reduced-motion: reduce) {
    #audio-gate {
        transition: none;
    }

    #signal-counter.is-hit,
    #life-counter.is-hit,
    #life-counter.is-healed {
        animation: none;
    }
}