/* CSS Custom Properties */
:root {
    /* Ultra Dark Color Palette */
    --primary-black: #000000;
    --secondary-black: #0a0a0a;
    --tertiary-black: #111111;
    --quaternary-black: #1a1a1a;
    
    /* Premium Blue Gradients - More Elegant */
    --primary-blue: #0066ff;
    --secondary-blue: #0052cc;
    --accent-blue: #3399ff;
    --electric-blue: #00ccff;
    --deep-blue: #001a4d;
    --midnight-blue: #000d26;
    
    /* Elegant Gradient Definitions */
    --gradient-primary: linear-gradient(135deg, #000000 0%, #0a0a0a 20%, #111111 40%, #001a4d 70%, #0066ff 100%);
    --gradient-secondary: linear-gradient(120deg, #0066ff 0%, #0052cc 25%, #3399ff 50%, #00ccff 75%, #0066ff 100%);
    --gradient-accent: linear-gradient(145deg, #000000 0%, #0a0a0a 30%, #001a4d 70%, #0066ff 100%);
    --gradient-glass: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 26, 77, 0.15) 100%);
    --gradient-border: linear-gradient(135deg, #0066ff 0%, #00ccff 25%, #3399ff 50%, #0052cc 75%, #0066ff 100%);
    --gradient-elegant: radial-gradient(ellipse at top, #000d26 0%, #000000 50%, #0a0a0a 100%);
    --gradient-button: linear-gradient(135deg, #0066ff 0%, #0052cc 30%, #3399ff 70%, #00ccff 100%);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #e6e6e6;
    --text-muted: #999999;
    --text-accent: #00ccff;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius - Enhanced for Elegance */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.75rem;
    --radius-3xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7), 0 4px 6px -2px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.8), 0 10px 10px -5px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(0, 102, 255, 0.3);
    --shadow-elegant: 0 25px 50px -12px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(0, 102, 255, 0.1);
    
    /* Border */
    --border-color: rgba(0, 102, 255, 0.25);
    --border-hover: rgba(0, 204, 255, 0.45);
    --border-width: 2px;
}

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

/* Custom Scrollbar - Thin and Elegant */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: var(--primary-black);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-button);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--electric-blue));
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.5);
}

::-webkit-scrollbar-corner {
    background: var(--primary-black);
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-blue) var(--primary-black);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gradient-elegant);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

.app-container {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-elegant), var(--shadow-glow);
    text-align: center;
    width: 100%;
    max-width: 450px;
    border: var(--border-width) solid transparent;
    background-clip: padding-box;
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.app-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-border);
    border-radius: var(--radius-3xl);
    padding: var(--border-width);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: exclude;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

.app-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-accent);
    opacity: 0.03;
    border-radius: var(--radius-3xl);
    pointer-events: none;
}

/* Header */
header h1 {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    background: var(--gradient-button);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
    text-shadow: 0 0 30px rgba(0, 102, 255, 0.3);
    position: relative;
}

header h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-button);
    border-radius: var(--radius-sm);
}

/* Content Area */
.content-area {
    flex-grow: 1;
    width: 100%;
    overflow-y: auto;
    padding-bottom: 80px;
    min-height: 0;
    position: relative;
    z-index: 1;
}

.app-section {
    display: none;
    padding: var(--spacing-lg) 0;
    animation: sectionFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-section.active-section {
    display: block;
}

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

/* Recent Wins Section */
.recent-wins-section {
    margin-bottom: var(--spacing-xl);
    background: var(--gradient-glass);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
}

.recent-wins-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 204, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.recent-wins-title {
    color: var(--text-accent);
    font-size: clamp(1rem, 4vw, 1.25rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-shadow: 0 0 15px rgba(0, 204, 255, 0.5);
}

.recent-wins-ticker {
    position: relative;
    width: 100%;
    height: 80px;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--secondary-black);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-color);
}

.recent-wins-track {
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    height: 100%;
}

.recent-win-item {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
}

.recent-win-item:hover {
    transform: scale(1.1) translateY(-2px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.recent-win-item img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

/* Roulette Zone */
.roulette-zone {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    background: var(--gradient-glass);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: var(--border-width) solid var(--border-color);
    overflow: hidden;
}

.roulette-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(0, 102, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.roulette-ticker {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 20px solid var(--electric-blue);
    z-index: 10;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
    animation: tickerPulse 2s ease-in-out infinite;
}

@keyframes tickerPulse {
    0%, 100% { transform: translateX(-50%) scale(1); }
    50% { transform: translateX(-50%) scale(1.1); }
}

.roulette-window {
    width: 100%;
    height: 110px;
    overflow: hidden;
    position: relative;
    border-radius: var(--radius-xl);
    background: var(--secondary-black);
    box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.7);
}

.roulette-track {
    height: 100%;
    display: flex;
    position: relative;
    transition: transform 12s cubic-bezier(0.1, 0.6, 0.1, 1);
    will-change: transform;
}

.roulette-item {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    margin: 5px;
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.roulette-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.roulette-item:hover::before {
    opacity: 0.1;
}

.roulette-item img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.7));
    position: relative;
    z-index: 1;
}

/* Spins Counter */
.spins-counter {
    margin-top: var(--spacing-lg);
    font-size: 1rem;
    color: var(--text-accent);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--gradient-glass);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    font-weight: 600;
}

/* Controls */
.controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: var(--spacing-xl);
    gap: var(--spacing-md);
}

.spin-button, .controls button, .action-buttons button {
    background: var(--gradient-button);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: clamp(1rem, 4.5vw, 1.125rem);
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    border-radius: var(--radius-2xl);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 85%;
    max-width: 300px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spin-button::before, .controls button::before, .action-buttons button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.spin-button:hover::before, .controls button:hover::before, .action-buttons button:hover::before {
    left: 100%;
}

.spin-button:hover, .controls button:hover, .action-buttons button:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--electric-blue));
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.spin-button:active, .controls button:active, .action-buttons button:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.spin-button:disabled, .controls button:disabled {
    background: linear-gradient(135deg, var(--tertiary-black), var(--quaternary-black));
    cursor: not-allowed;
    opacity: 0.5;
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* Top Up Button */
.top-up-button {
    background: linear-gradient(135deg, #ffd700, #ffb300, #ff8c00);
    color: var(--primary-black);
    font-weight: 700;
    box-shadow: var(--shadow-lg), 0 0 20px rgba(255, 215, 0, 0.3);
}

.top-up-button:hover {
    background: linear-gradient(135deg, #ffed4e, #ffd700, #ffb300);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(255, 215, 0, 0.5);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: var(--border-width) solid var(--border-color);
    border-top-left-radius: var(--radius-2xl);
    border-top-right-radius: var(--radius-2xl);
    padding: var(--spacing-md) 0;
    z-index: 100;
    box-shadow: var(--shadow-xl);
}

.nav-button {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-grow: 1;
    text-align: center;
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-button);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: var(--radius-xl);
}

.nav-button.active::before {
    opacity: 0.1;
}

.nav-button .nav-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.7;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.nav-button span:last-child {
    font-size: 0.75rem;
    position: relative;
    z-index: 1;
}

.nav-button.active {
    color: var(--text-accent);
    transform: translateY(-2px);
}

.nav-button.active .nav-icon {
    opacity: 1;
    color: var(--text-accent);
    filter: drop-shadow(0 0 8px rgba(0, 204, 255, 0.5));
}

.nav-button:hover {
    color: var(--text-secondary);
    transform: translateY(-1px);
}

.nav-button:hover .nav-icon {
    opacity: 0.9;
}

/* Profile Section */
.profile-info {
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    text-align: left;
    box-shadow: var(--shadow-lg);
}

.profile-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 102, 255, 0.1);
}

.profile-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.profile-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.profile-value {
    color: var(--text-accent);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Prizes Section */
.prizes-hint {
    text-align: center;
    margin: var(--spacing-md) 0 var(--spacing-xl) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-style: italic;
    background: var(--gradient-glass);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.prizes-list-container {
    margin-top: var(--spacing-lg);
    text-align: left;
}

#prizesList {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

#prizesList li {
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

#prizesList li::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 204, 255, 0.1), transparent);
    transition: left 0.5s;
}

#prizesList li:hover::before {
    left: 100%;
}

#prizesList li:hover {
    background: rgba(0, 102, 255, 0.05);
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

#prizesList li img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    margin-right: var(--spacing-md);
    border-radius: var(--radius-lg);
    background: var(--secondary-black);
    padding: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
}

#prizesList li span {
    flex-grow: 1;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.no-prizes-message {
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-2xl);
    font-style: italic;
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

/* Instructions Section */
.instructions-content {
    background: var(--gradient-glass);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    text-align: left;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
    box-shadow: var(--shadow-lg);
}

.instructions-content p {
    margin-bottom: var(--spacing-md);
}

.instructions-content strong {
    color: var(--text-accent);
    font-weight: 600;
}

.instructions-content ol {
    list-style-type: decimal;
    margin-left: var(--spacing-xl);
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.instructions-content ol li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
}

/* Gift Result Display */
#giftResultDisplay {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 102, 255, 0.1));
    border: var(--border-width) solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-2xl);
    animation: resultSlideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(16, 185, 129, 0.2);
}

@keyframes resultSlideIn {
    from { opacity: 0; transform: translateY(30px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

#giftResultDisplay p {
    font-size: clamp(1rem, 4vw, 1.125rem);
    font-weight: 700;
    color: #10b981;
    text-align: center;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

/* Custom Alert Modal */
.custom-alert-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: var(--spacing-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.custom-alert-overlay.visible {
    display: flex;
    opacity: 1;
}

.custom-alert-box {
    background: var(--gradient-glass);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-elegant), var(--shadow-glow);
    text-align: center;
    width: 90%;
    max-width: 380px;
    max-height: 80vh;
    overflow-y: auto;
    border: var(--border-width) solid var(--border-color);
    color: var(--text-primary);
    transform: scale(0.8);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.custom-alert-overlay.visible .custom-alert-box {
    transform: scale(1);
    opacity: 1;
}

#customAlertMessage {
    font-size: 1rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    color: var(--text-secondary);
}

#customAlertOkButton {
    background: var(--gradient-button);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 0.875rem;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    border-radius: var(--radius-2xl);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 120px;
    box-shadow: var(--shadow-lg);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#customAlertOkButton:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--electric-blue));
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-elegant);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-container {
    text-align: center;
    max-width: 350px;
    width: 90%;
}

.loading-logo {
    margin-bottom: var(--spacing-2xl);
}

.loading-icon {
    font-size: 4em;
    color: var(--text-accent);
    display: block;
    margin-bottom: var(--spacing-lg);
    animation: loadingPulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(0, 204, 255, 0.5));
}

.loading-title {
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 0;
    background: var(--gradient-button);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 102, 255, 0.3);
}

.progress-container {
    margin-bottom: var(--spacing-2xl);
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 8px;
    background: var(--secondary-black);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--gradient-button);
    border-radius: var(--radius-md);
    transition: width 0.4s ease;
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.5);
}

.progress-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.progress-percent {
    color: var(--text-accent);
    font-size: 1.125rem;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 204, 255, 0.3);
}

.loading-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--text-accent);
    border-radius: 50%;
    animation: loadingDots 1.5s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(0, 204, 255, 0.3);
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.3s; }
.loading-dots span:nth-child(3) { animation-delay: 0.6s; }

/* Animations */
@keyframes loadingPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

@keyframes loadingDots {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1.3); opacity: 1; }
}

/* Confetti Animation */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    opacity: 0.9;
    animation: confettiFall var(--duration) linear forwards;
}

.confetti-square { background: var(--color); }
.confetti-circle { background: var(--color); border-radius: 50%; }
.confetti-triangle {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 10px solid var(--color);
}

@keyframes confettiFall {
    0% { transform: translateY(-100vh) rotateZ(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotateZ(720deg); opacity: 0; }
}

/* Win Animations */
.win-result-animation {
    animation: winResultPop 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes winResultPop {
    0% { transform: scale(0.7) rotate(-10deg); opacity: 0; }
    50% { transform: scale(1.1) rotate(5deg); opacity: 0.9; }
    100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.win-text-glow {
    animation: winGlow 2s ease-in-out infinite alternate;
}

@keyframes winGlow {
    from { 
        color: #10b981; 
        text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
    }
    to { 
        color: var(--text-accent); 
        text-shadow: 0 0 20px rgba(0, 204, 255, 0.5), 0 0 30px rgba(0, 204, 255, 0.3);
    }
}

/* Responsive Design */
@media (max-width: 480px) {
    .app-container {
        padding: var(--spacing-lg) var(--spacing-md);
        border-radius: var(--radius-2xl);
    }
    
    header h1 {
        font-size: 1.75rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .roulette-zone {
        padding: var(--spacing-md) 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .recent-wins-section {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-height: 600px) {
    .app-container {
        padding: var(--spacing-md);
    }
    
    .content-area {
        padding-bottom: 70px;
    }
    
    .bottom-nav {
        padding: var(--spacing-sm) 0;
    }
}

/* Hardware Acceleration */
.roulette-track,
.roulette-item,
.recent-win-item,
.confetti-piece,
.app-container,
.bottom-nav,
.spin-button,
.nav-button {
    will-change: transform;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .roulette-track {
        transition-duration: 2s !important;
    }
}