@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;800&family=Roboto+Mono:wght@400;700&display=swap');

        :root {
            /* Dynamic Theme Variables */
            --theme-primary: #ffd700;   /* Default Gold */
            --theme-secondary: #00f3ff; /* Default Cyan */
            --glass-bg: rgba(20, 20, 30, 0.95);
            --glass-border: rgba(255, 255, 255, 0.1);
        }

        body {
            font-family: 'Montserrat', sans-serif;
            background-color: #0f0f13;
            background-image: 
                radial-gradient(circle at 50% 0%, #1a1a2e 0%, transparent 70%),
                radial-gradient(circle at 0% 100%, #16213e 0%, transparent 50%);
            color: #fff;
            overflow-x: hidden;
            touch-action: manipulation;
            transition: --theme-primary 0.5s, --theme-secondary 0.5s;
        }

        /* Utilities utilizing CSS Variables for Theming */
        .font-mono { font-family: 'Roboto Mono', monospace; }
        
        .text-theme-primary { color: var(--theme-primary); text-shadow: 0 0 10px var(--theme-primary); }
        .text-theme-secondary { color: var(--theme-secondary); text-shadow: 0 0 10px var(--theme-secondary); }
        
        .border-theme-primary { border-color: var(--theme-primary); }
        
        .glass-panel {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }

        .btn-push {
            transition: transform 0.1s, box-shadow 0.1s;
        }
        .btn-push:active {
            transform: translateY(2px);
            box-shadow: inset 0 2px 4px rgba(0,0,0,0.5);
        }

        /* Canvas Container - Responsive Size */
        #scratch-container {
            position: relative;
            width: 260px; /* Smaller for Mobile */
            height: 260px;
            margin: 0 auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 0 20px rgba(0,0,0,0.5);
            user-select: none;
            cursor: crosshair;
        }
        
        /* Desktop Override */
        @media (min-width: 768px) {
            #scratch-container {
                width: 300px;
                height: 300px;
            }
        }

        canvas {
            position: absolute;
            top: 0;
            left: 0;
            touch-action: none;
            width: 100%;
            height: 100%;
        }

        /* Confetti Animation */
        .confetti {
            position: fixed;
            width: 10px;
            height: 10px;
            background-color: var(--theme-primary);
            animation: fall linear forwards;
            pointer-events: none;
            z-index: 100;
        }
        @keyframes fall {
            to { transform: translateY(100vh) rotate(720deg); }
        }

        /* Animations */
        @keyframes pulse-theme {
            0% { box-shadow: 0 0 0 0 var(--theme-primary); }
            70% { box-shadow: 0 0 0 10px rgba(0,0,0,0); }
            100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); }
        }
        .animate-pulse-theme { animation: pulse-theme 2s infinite; }

        .slide-up { animation: slideUp 0.3s ease-out forwards; }
        @keyframes slideUp {
            from { transform: translateY(100%); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }

        .slide-in-right { animation: slideInRight 0.3s ease-out forwards; }
        @keyframes slideInRight {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        
        .slide-in-left { animation: slideInLeft 0.3s ease-out forwards; }
        @keyframes slideInLeft {
            from { transform: translateX(-100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: #1a1a2e; }
        ::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: #555; }

        .hidden { display: none !important; }
        
        /* Grid for Theme Selection */
        .theme-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }

        /* Mini Cards for Batch Mode */
        .mini-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
            gap: 8px;
        }
        .mini-card {
            aspect-ratio: 1;
            background-color: #1f2937;
            border-radius: 8px;
            position: relative;
            overflow: hidden;
            border: 1px solid #374151;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        .mini-card-cover {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #333 0%, #111 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: opacity 0.3s;
            z-index: 10;
        }
        .mini-card.revealed .mini-card-cover {
            opacity: 0;
            pointer-events: none;
        }
        .mini-card.win {
            border-color: var(--theme-primary);
            box-shadow: 0 0 5px var(--theme-primary);
        }

        /* Modern Notification Container */
        #notification-container {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 9999;
            display: flex;
            flex-direction: column;
            gap: 10px;
            pointer-events: none;
        }
        .modern-toast {
            pointer-events: auto;
            min-width: 300px;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(8px);
            border-left: 4px solid var(--theme-primary);
            color: white;
            padding: 16px;
            border-radius: 8px;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            gap: 12px;
            transform: translateX(100%);
            animation: toastSlideIn 0.3s forwards;
        }
        @keyframes toastSlideIn {
            to { transform: translateX(0); }
        }
        .toast-icon { font-size: 1.25rem; }
        
        /* Shiny Text Effect for Withdraw */
        .text-shine {
            background: linear-gradient(to right, #22d3ee 20%, #fff 50%, #22d3ee 80%);
            background-size: 200% auto;
            color: #22d3ee;
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: shine 3s linear infinite;
            font-weight: bold;
        }
        @keyframes shine {
            to { background-position: 200% center; }
        }

        /* Splash Screen */
        #splash-screen {
            position: fixed;
            inset: 0;
            background: #0f0f13;
            z-index: 9999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            transition: opacity 0.8s ease-out;
        }
        .loader-ring {
            width: 64px;
            height: 64px;
            border: 4px solid rgba(255, 215, 0, 0.1);
            border-left-color: var(--theme-primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 20px;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
        .splash-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 0.2em;
            background: linear-gradient(to right, #fff, var(--theme-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }
        .splash-subtitle {
            color: #666;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }