html,
body {
    height: 100%;
    margin: 0;
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

:root {
    --hud-panel-background: rgba(8, 12, 18, 0.72);
    --hud-panel-border: rgba(255, 255, 255, 0.14);
    --hud-panel-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

body {
    background: #000;
    color: #f5f7fb;
    font-family: Arial, Helvetica, sans-serif;
}

#gameCanvas {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    touch-action: none;
    transform: translate(-50%, -50%);
}

.hud {
    box-sizing: border-box;
    display: flex;
    justify-content: flex-start;
    left: 0;
    padding: 16px;
    pointer-events: none;
    position: fixed;
    right: 0;
    top: 0;
    z-index: 2;
}

.debug-panel {
    background: var(--hud-panel-background);
    border: 1px solid var(--hud-panel-border);
    border-radius: 8px;
    box-shadow: var(--hud-panel-shadow);
}

.debug-panel div {
    display: grid;
    gap: 2px;
    min-width: 80px;
}

.debug-panel span {
    color: #b9c2d0;
    font-size: 11px;
    line-height: 1;
    text-transform: uppercase;
}

.debug-panel strong {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
}

.debug-panel {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(2, minmax(72px, 1fr));
    padding: 10px 12px;
}

.debug-panel[hidden] {
    display: none;
}

.debug-panel [hidden] {
    display: none;
}

.minimap {
    border-radius: 50%;
    bottom: 16px;
    box-shadow: var(--hud-panel-shadow);
    display: block;
    height: clamp(96px, 28vmin, 300px);
    pointer-events: none;
    position: fixed;
    right: 16px;
    touch-action: none;
    width: clamp(96px, 28vmin, 300px);
    z-index: 2;
}

.touch-controls {
    height: clamp(96px, 18vmin, 150px);
    left: 50%;
    opacity: 0;
    pointer-events: none;
    position: fixed;
    top: 50%;
    transform: translate(-50%, -50%) scale(0.94);
    transition: opacity 120ms ease, transform 120ms ease;
    visibility: hidden;
    width: clamp(96px, 18vmin, 150px);
    z-index: 3;
}

.touch-controls.is-active {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    visibility: visible;
}

.move-stick {
    align-items: center;
    background: rgba(8, 12, 18, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
    display: flex;
    height: 100%;
    justify-content: center;
    touch-action: none;
    width: 100%;
}

.move-stick-knob {
    background: rgba(245, 247, 251, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
    height: clamp(40px, 7.5vmin, 58px);
    transform: translate(0, 0);
    width: clamp(40px, 7.5vmin, 58px);
}

@media (max-width: 640px) {
    .hud {
        gap: 8px;
        padding: 10px;
    }

    .debug-panel div {
        min-width: 64px;
    }

    .minimap {
        bottom: 10px;
        right: 10px;
    }
}