* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    z-index: -2;
}

.background-image {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90%;
    max-height: 90%;
    z-index: -1;
    background: linear-gradient(135deg, #8B4513 0%, #654321 50%, #4a3520 100%);
    padding: 25px;
    border-radius: 6px;
    box-shadow: 
        /* Outer shadow */
        0 15px 50px rgba(0, 0, 0, 0.6),
        0 8px 25px rgba(0, 0, 0, 0.4),
        /* Outer gold trim */
        inset 0 0 0 2px #D4A574,
        inset 0 0 0 4px #8B4513,
        /* Decorative carved line */
        inset 0 0 0 8px #B8860B,
        inset 0 0 0 10px #654321,
        /* Inner gold accent */
        inset 0 0 0 14px #DAA520,
        inset 0 0 0 16px #8B4513,
        /* Deep inner shadow */
        inset 0 0 0 20px #5c3d2e,
        inset 0 0 0 22px #3d2817;
}

.background-image::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 2px solid rgba(218, 165, 32, 0.4);
    border-radius: 4px;
    pointer-events: none;
}

.background-image::after {
    content: '';
    position: absolute;
    top: 18px;
    left: 18px;
    right: 18px;
    bottom: 18px;
    border: 1px solid rgba(139, 69, 19, 0.6);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

.background-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    border: 3px solid #2d1810;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
}

#snow-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

#accumulation-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}