body {
    background-color: #f9f9f9;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    touch-action: manipulation;
}
.material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
    display: inline-block;
    vertical-align: middle
}
.glass-card {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.premium-shadow {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.02)
}
.focus-ring:focus-visible {
    outline: 2px solid #1D1D1F;
    outline-offset: 4px
}
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
    opacity: 0.03;
    background-image: url(https://lh3.googleusercontent.com/aida-public/AB6AXuCIbpM0DbnBdw70pQk_F1NwB3465LuORpaWhOYW65C7CbOVdrPLAlP6X8ADcD0LpCJ66Fl3zQi-2tDiVbrpJ9GlsZ6uuiVFJF_PCPXgpvaNG_KPXX6JHF8TecUw2V20NpauP7st4pKVUBTnhBhN-TS-urq3ZVdk3PfJj0QIuCz2jp4fv4iLDM5RCi5Ji2zBCY4ygi0yBPAEvSoyH46w8i79wi_rSiVR453U5AYrEt7CvEV_-qSHqpaEls-HfJsXINAd1fexpGcz9Ck);
    filter: contrast(150%) brightness(100%)
}
#shader-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
@keyframes scorePop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); color: #25D366; }
    100% { transform: scale(1); }
}
.score-pop {
    animation: scorePop 0.3s ease-out;
}
.hidden-content {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    transition: all 0.5s ease-out;
}
#game-menu::-webkit-scrollbar,
#lb-rows::-webkit-scrollbar {
    width: 4px;
}
#game-menu::-webkit-scrollbar-thumb,
#lb-rows::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 10px;
}
#game-canvas {
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none;
    cursor: pointer;
    outline: none;
}