body, html {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            user-select: none;
            background-color: #030712;
        }

        #game-canvas {
            width: 100%;
            height: 100%;
            display: block;
        }

        .glass-panel {
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .glass-card {
            background: rgba(30, 41, 59, 0.7);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glass-card:hover {
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-2px);
        }

        .crosshair {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 8px;
            height: 8px;
            transform: translate(-50%, -50%);
            background-color: rgba(255, 255, 255, 0.9);
            border: 2px solid rgba(0, 0, 0, 0.6);
            border-radius: 50%;
            pointer-events: none;
            transition: opacity 0.2s ease;
        }

        #boost-vignette {
            position: absolute;
            inset: 0;
            pointer-events: none;
            transition: box-shadow 0.4s ease, border 0.4s ease;
            z-index: 5;
        }

        #boost-vignette.boost-chance {
            box-shadow: inset 0 0 100px rgba(16, 185, 129, 0.4);
            border: 3px solid rgba(16, 185, 129, 0.6);
        }

        #boost-vignette.boost-respawn {
            box-shadow: inset 0 0 100px rgba(245, 158, 11, 0.4);
            border: 3px solid rgba(245, 158, 11, 0.6);
        }

        .pop-text {
            position: absolute;
            pointer-events: none;
            font-weight: 900;
            font-size: 1.3rem;
            text-shadow: 0 0 12px rgba(0,0,0,0.9);
            animation: floatUp 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
            z-index: 50;
        }

        @keyframes floatUp {
            0% { opacity: 0; transform: translate(-50%, 0) scale(0.6); }
            20% { opacity: 1; transform: translate(-50%, -20px) scale(1.2); }
            80% { opacity: 1; transform: translate(-50%, -50px) scale(1.0); }
            100% { opacity: 0; transform: translate(-50%, -70px) scale(0.8); }
        }

        .toast-enter {
            animation: toastIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
        }

        @keyframes toastIn {
            from { opacity: 0; transform: translateY(20px) scale(0.9); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.2); border-radius: 4px; }