body {
    margin: 0;
    overflow: hidden;
    font-family: "MS Sans Serif", Arial, sans-serif;
    background: #000;
}

canvas {
    display: block;
}

/* ==================== RETRO WINDOWS 2000 STYLE ==================== */
.win-window {
    background: #c0c0c0;
    border: 2px solid #dfdfdf;
    border-right-color: #808080;
    border-bottom-color: #808080;
    box-shadow: 3px 3px 0 #00000040;
    color: #000;
    font-size: 13px;
}

.win-titlebar {
    background: linear-gradient(to right, #000080 0%, #1084d0 100%);
    color: white;
    padding: 3px 8px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 24px;
    border-bottom: 2px solid #dfdfdf;
}

.win-titlebar span {
    text-shadow: 1px 1px 1px #000080;
}

.win-buttons {
    display: flex;
    gap: 2px;
}

.win-btn {
    width: 18px;
    height: 18px;
    background: #c0c0c0;
    border: 2px solid #dfdfdf;
    border-right-color: #808080;
    border-bottom-color: #808080;
    font-size: 11px;
    line-height: 14px;
    text-align: center;
    color: #000;
}

.win-content {
    padding: 12px 14px;
    background: #c0c0c0;
    border-top: 2px solid #dfdfdf;
}

/* Kleine Uhr-HUD */
#hud {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 260px;
    z-index: 100;
    pointer-events: none;
}

/* Steuerung-HUD */
#controls-hud {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 240px;
    z-index: 100;
    pointer-events: none;
}

#controls-hud .win-content p {
    margin: 4px 0;
    font-size: 12px;
}

/* Große Start-HUD (Steuerung) */
#blocker {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    cursor: pointer;
}

#instructions {
    width: 520px;
    max-width: 90vw;
}

#crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 26px;
    height: 26px;
    margin: -13px 0 0 -13px;
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    pointer-events: none;
    z-index: 300;
    display: none;
    font-size: 22px;
    line-height: 22px;
    text-align: center;
}