/* ==================== */
/* CSS CUSTOM PROPERTIES */
/* ==================== */
:root {
    /* Color Palette - Modern Cyber Luxury */
    --color-primary-dark: #000000;
    --color-primary: #0f172a;
    --color-primary-light: #1e293b;
    --color-accent: #7e22ce;
    --color-accent-dark: #6d28d9;
    --color-success: #22d3ee;
    --color-danger: #fb7185;
    --color-text-light: #f8fafc;
    --color-text-dark: #000000;
    
    /* Glass Effect */
    --glass-bg: rgba(2, 6, 23, 0.8);
    --glass-border: rgba(168, 85, 247, 0.4);
    --glass-blur: blur(20px);
    --glass-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
    
    /* Shadows */
    --shadow-elevation-low: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-elevation-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
    --shadow-elevation-high: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    --shadow-glow-accent: 0 0 25px rgba(168, 85, 247, 0.6);
    --shadow-glow-success: 0 0 25px rgba(34, 211, 238, 0.6);
    --shadow-glow-danger: 0 0 25px rgba(251, 113, 133, 0.6);
    
    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Space Grotesk', sans-serif;
}

/* ==================== */
/* BASE STYLES */
/* ==================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--color-primary-dark);
    color: var(--color-text-light);
    font-family: var(--font-sans);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== */
/* UTILITY CLASSES */
/* ==================== */
.hidden {
    display: none !important;
}

.pointer-events-none {
    pointer-events: none;
}

.pointer-events-auto {
    pointer-events: auto;
}

/* ==================== */
/* GLASS EFFECT */
/* ==================== */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 0.5rem;
}

/* ==================== */
/* BUTTONS */
/* ==================== */
.btn-interactive {
    transition: all 0.3s ease;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn-interactive:hover {
    transform: translateY(-2px);
}

.btn-interactive:active {
    transform: translateY(0);
}

.btn-interactive:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==================== */
/* ANIMATIONS */
/* ==================== */
@keyframes bounce-in {
    0% {
        transform: translateY(-20px) scale(0.95);
        opacity: 0;
    }
    50% {
        transform: translateY(5px) scale(1.02);
        opacity: 1;
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
        border-color: rgba(168, 85, 247, 0.6);
    }
    50% {
        box-shadow: 0 0 40px rgba(168, 85, 247, 0.8);
        border-color: rgba(168, 85, 247, 1);
    }
}

/* Animation Utility Classes */
.animate-bounce-in {
    animation: bounce-in 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-glow-pulse {
    animation: glow-pulse 2s ease-in-out infinite;
}

/* ==================== */
/* FORM ELEMENTS */
/* ==================== */
input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* ==================== */
/* CUSTOM SCROLLBAR */
/* ==================== */
.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent) rgba(0, 0, 0, 0.1);
}

.custom-scrollbar::-webkit-scrollbar {
    width: 4px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: 2px;
}

/* ==================== */
/* GRADIENT TEXT */
/* ==================== */
.gradient-text-primary {
    background: linear-gradient(135deg, #a855f7 0%, var(--color-accent) 50%, #6d28d9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 12px rgba(126, 34, 206, 0.4));
}

.glow-text-accent {
    text-shadow: 0 0 15px rgba(168, 85, 247, 0.8);
}

.glow-text-success {
    text-shadow: 0 0 15px rgba(34, 211, 238, 0.8);
}

.glow-text-danger {
    text-shadow: 0 0 15px rgba(251, 113, 133, 0.8);
}

/* ==================== */
/* SPECIAL EFFECTS */
/* ==================== */
.particle-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    background: 
        radial-gradient(circle at 20% 30%, rgba(168, 85, 247, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(34, 211, 238, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(251, 113, 133, 0.2) 0%, transparent 50%);
    mix-blend-mode: screen;
}

.texture-overlay {
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMDAwMDAwIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwxNiA1MEwyOCAzNEw0MCA1MEwyOCA2Nk0yOCAwTDE2IDE2TDI4IDMyTDQwIDE2TDI4IDBNMCA1MEwxMiA2NkwwIDgyTDEyIDk4TDI0IDgyTDEyIDY2TDAgNTBNNTYgNTBMNDQgNjZMMzYgNTBMNDQgMzRMNTYgNTBNMjggMTAwTDE2IDg0TDI4IDY4TDQwIDg0TDI4IDEwMCIgZmlsbC1vcGFjaXR5PSIwLjA4IiBmaWxsPSIjYTA1NWY3IiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjwvcGF0aD4KPC9zdmc+');
    opacity: 0.2;
    mix-blend-mode: overlay;
}

/* ==================== */
/* ERROR STATES */
/* ==================== */
.webgl-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(2, 44, 34, 0.95);
    border: 2px solid var(--color-accent);
    padding: 2rem;
    border-radius: 0.75rem;
    text-align: center;
    max-width: 500px;
    z-index: 1000;
}

/* ==================== */
/* RESPONSIVE ADJUSTMENTS */
/* ==================== */
@media (max-width: 768px) {
    #gameHUD {
        padding-bottom: 4rem !important;
    }
    
    #bettingControls {
        padding-bottom: env(safe-area-inset-bottom, 0.5rem) !important;
    }
    
    #bettingControls .glass-panel {
        max-width: 100%;
        border-radius: 1rem 1rem 0 0 !important;
        padding: 1rem !important;
    }
}

@media (max-height: 700px) {
    #multiplierDisplay {
        font-size: 3.5rem !important;
    }
    
    #bettingControls .glass-panel {
        padding: 0.75rem !important;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn-interactive:hover {
        transform: none;
    }
    
    .btn-interactive:active {
        transform: scale(0.98);
    }
}