* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: radial-gradient(ellipse at top, #1a237e 0%, #0A0E27 50%, #000000 100%);
    touch-action: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.hidden {
    display: none !important;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-canvas {
    display: block;
    background: linear-gradient(180deg, #0A0E27 0%, #1A1F3A 100%);
    cursor: pointer;
    touch-action: none;
}

#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

/* UI Cards - separate elegant cards */
.ui-card {
    position: fixed;
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.92) 0%, rgba(15, 20, 50, 0.92) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(0, 217, 255, 0.15);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 
                0 0 60px rgba(0, 217, 255, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    pointer-events: all;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ui-card:hover {
    border-color: rgba(0, 217, 255, 0.25);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 
                0 0 80px rgba(0, 217, 255, 0.12),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.card-header {
    color: rgba(0, 217, 255, 0.9);
    font-size: clamp(10px, 2vw, 11px);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(0, 217, 255, 0.15);
}

/* Stats Card */
.stats-card {
    top: 12px;
    left: 12px;
    padding: 14px 18px;
}

/* Speed Card */
.speed-card {
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 18px;
}

/* Menu Card */
.menu-card {
    top: 12px;
    right: 12px;
    padding: 8px;
}

/* Ability Card */
.ability-card {
    top: 12px;
    right: 120px;
    padding: 8px;
}

.ability-btn {
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.3) 0%, rgba(255, 136, 0, 0.25) 100%);
    color: #fff;
    border: 2px solid rgba(255, 68, 68, 0.5);
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(255, 68, 68, 0.2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.ability-btn:hover:not(.disabled) {
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.5) 0%, rgba(255, 136, 0, 0.35) 100%);
    border-color: rgba(255, 68, 68, 0.8);
    box-shadow: 0 6px 20px rgba(255, 68, 68, 0.4);
    transform: scale(1.05);
}

.ability-btn:active:not(.disabled) {
    transform: scale(0.95);
}

.ability-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

.menu-card button {
    margin: 0;
}

#player-info {
    display: flex;
    gap: 12px;
    color: rgba(255, 255, 255, 0.95);
    font-size: clamp(12px, 2.5vw, 14px);
    font-weight: 700;
    letter-spacing: 0.3px;
}

#player-info span {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    transition: all 0.25s ease;
    white-space: nowrap;
    min-width: 90px; /* Fixed width to prevent jumping */
    font-variant-numeric: tabular-nums; /* Monospaced numbers */
}

#player-info span:hover {
    background: rgba(0, 217, 255, 0.15);
    border-color: rgba(0, 217, 255, 0.3);
}

#speed-controls {
    display: flex;
    gap: 4px;
    align-items: center;
}

.speed-btn {
    background: rgba(139, 157, 195, 0.15);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(139, 157, 195, 0.3);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: clamp(11px, 2vw, 12px);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 48px;
    backdrop-filter: blur(10px);
}

.speed-btn:hover {
    background: rgba(139, 157, 195, 0.25);
    border-color: rgba(0, 217, 255, 0.5);
    color: #fff;
    transform: scale(1.05);
}

.speed-btn.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(123, 47, 255, 0.25) 100%);
    border-color: rgba(0, 217, 255, 0.7);
    color: #00D9FF;
    box-shadow: 0 4px 16px rgba(0, 217, 255, 0.3);
}

.speed-btn:active {
    transform: scale(0.95);
}

#view-controls {
    display: flex;
    gap: 4px;
    align-items: center;
}

.view-btn {
    background: rgba(139, 157, 195, 0.15);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(139, 157, 195, 0.3);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 40px;
    backdrop-filter: blur(10px);
}

.view-btn:hover {
    background: rgba(139, 157, 195, 0.25);
    border-color: rgba(0, 217, 255, 0.5);
    transform: scale(1.08);
}

.view-btn.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(123, 47, 255, 0.25) 100%);
    border-color: rgba(0, 217, 255, 0.7);
    color: #00D9FF;
    box-shadow: 0 4px 16px rgba(0, 217, 255, 0.3);
}

.view-btn:active {
    transform: scale(0.95);
}

#menu-btn, #restart-btn, #play-again-btn, #back-to-menu-btn {
    background: rgba(0, 217, 255, 0.15);
    color: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 217, 255, 0.3);
    padding: 8px 16px;
    border-radius: 10px;
    font-size: clamp(12px, 2.5vw, 14px);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

#menu-btn:hover, #restart-btn:hover, #play-again-btn:hover, #back-to-menu-btn:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(123, 47, 255, 0.25) 100%);
    border-color: rgba(0, 217, 255, 0.6);
    color: #00D9FF;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.4);
}

#menu-btn:active, #restart-btn:active, #play-again-btn:active, #back-to-menu-btn:active {
    transform: scale(0.95);
}

#game-over {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.98) 0%, rgba(20, 27, 66, 0.98) 100%);
    padding: clamp(32px, 5vw, 48px);
    border-radius: 24px;
    text-align: center;
    pointer-events: all;
    backdrop-filter: blur(24px) saturate(180%);
    border: 2px solid rgba(0, 217, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8),
                0 0 100px rgba(0, 217, 255, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
    z-index: 1000;
    animation: gameOverAppear 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 90%;
}

@keyframes gameOverAppear {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

#game-over h2 {
    color: #00D9FF;
    font-size: clamp(24px, 6vw, 36px);
    margin-bottom: clamp(20px, 4vw, 28px);
    font-weight: 800;
    letter-spacing: 1px;
    text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

#game-over button {
    margin: 6px;
}

.tutorial {
    position: fixed;
    bottom: clamp(80px, 15vh, 110px);
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(20, 27, 66, 0.95) 100%);
    padding: 10px 20px;
    border-radius: 16px;
    pointer-events: none;
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(0, 217, 255, 0.25);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5),
                0 0 40px rgba(0, 217, 255, 0.12);
    animation: fadeInOut 8s ease-in-out forwards;
    z-index: 50;
    max-width: 90%;
}

.tutorial p {
    color: rgba(255, 255, 255, 0.95);
    font-size: clamp(11px, 2.5vw, 14px);
    margin: 0;
    text-align: center;
    font-weight: 600;
    letter-spacing: 0.3px;
    line-height: 1.4;
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
    10% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    85% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(-15px);
    }
}

/* Mobile optimizations */
@media (max-width: 768px) {
    /* Stack cards vertically on small screens */
    .stats-card {
        top: 8px;
        left: 8px;
        right: auto;
        transform: none;
        padding: 8px 14px;
    }
    
    .speed-card {
        top: auto;
        bottom: 8px;
        left: 8px;
        right: 8px;
        transform: none;
        padding: 8px 14px;
    }
    
    .ability-card {
        top: 8px;
        right: 60px;
        padding: 6px;
    }
    
    .ability-btn {
        padding: 8px 14px;
        font-size: 12px;
    }
    
    .menu-card {
        top: 8px;
        right: 8px;
        padding: 6px 12px;
    }
    
    .card-header {
        font-size: 9px;
        margin-bottom: 6px;
        padding-bottom: 6px;
    }
    
    #player-info {
        gap: 6px;
        flex-wrap: wrap;
    }
    
    #player-info span {
        padding: 4px 8px;
        font-size: 11px;
        min-width: 70px;
    }
    
    #speed-controls {
        gap: 6px;
        justify-content: center;
    }
    
    .speed-btn {
        padding: 6px 10px;
        min-width: 50px;
        font-size: 11px;
    }
    
    .view-btn {
        padding: 5px 8px;
        font-size: 14px;
        min-width: 36px;
    }
    
    #menu-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    #restart-btn, #play-again-btn, #back-to-menu-btn {
        padding: 7px 14px;
        font-size: 12px;
    }
    
    #game-over {
        padding: 28px 20px;
        max-width: 92%;
    }
    
    .tutorial {
        padding: 8px 16px;
        max-width: 92%;
    }
}

/* Very small screens - ultra compact */
@media (max-width: 480px) {
    .stats-card {
        padding: 6px 10px;
    }
    
    .speed-card {
        padding: 6px 10px;
    }
    
    .menu-card {
        padding: 4px 8px;
    }
    
    .card-header {
        font-size: 8px;
        margin-bottom: 4px;
        padding-bottom: 4px;
    }
    
    #player-info {
        gap: 4px;
    }
    
    #player-info span {
        padding: 3px 6px;
        font-size: 10px;
        min-width: 60px;
        gap: 4px;
    }
    
    #speed-controls {
        gap: 4px;
    }
    
    .speed-btn {
        padding: 5px 8px;
        min-width: 45px;
        font-size: 10px;
    }
    
    #menu-btn {
        padding: 5px 10px;
        font-size: 11px;
    }
}

/* Abilities Panel */
#abilities-panel {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    pointer-events: all;
    z-index: 100;
}

.ability-btn-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.ability-btn {
    position: relative;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2) 0%, rgba(0, 150, 200, 0.2) 100%);
    border: 2px solid rgba(0, 217, 255, 0.4);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.ability-icon {
    font-size: 28px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.ability-btn:hover:not(.disabled):not(.active) {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(0, 150, 200, 0.3) 100%);
    border-color: rgba(0, 217, 255, 0.6);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 24px rgba(0, 217, 255, 0.4);
}

.ability-btn:active:not(.disabled) {
    transform: translateY(-1px) scale(0.98);
}

.ability-btn.active {
    background: linear-gradient(135deg, rgba(0, 255, 100, 0.3) 0%, rgba(0, 200, 80, 0.3) 100%);
    border-color: rgba(0, 255, 100, 0.6);
    animation: abilityPulse 1s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(0, 255, 100, 0.5),
                inset 0 0 20px rgba(0, 255, 100, 0.2);
}

.ability-btn.disabled {
    background: rgba(50, 50, 60, 0.3);
    border-color: rgba(100, 100, 120, 0.3);
    cursor: not-allowed;
    opacity: 0.5;
}

.ability-btn.disabled .ability-icon {
    filter: grayscale(1) opacity(0.5);
}

.ability-cooldown {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
    pointer-events: none;
}

.ability-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@keyframes abilityPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 100, 0.5),
                    inset 0 0 20px rgba(0, 255, 100, 0.2);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 100, 0.8),
                    inset 0 0 30px rgba(0, 255, 100, 0.4);
    }
}

.tutorial {
    position: fixed;
    bottom: 110px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(20, 27, 66, 0.95) 100%);
    padding: 14px 32px;
    border-radius: 24px;
    pointer-events: none;
    backdrop-filter: blur(24px) saturate(180%);
    border: 1.5px solid rgba(0, 217, 255, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5),
                0 0 60px rgba(0, 217, 255, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
    animation: fadeInOut 8s ease-in-out forwards;
    z-index: 50;
}

.tutorial p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 15px;
    margin: 0;
    text-align: center;
    font-weight: 600;
    letter-spacing: 0.4px;
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
    10% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    85% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(-15px);
    }
}

/* Tablet and larger screens - optimize spacing */
@media (min-width: 769px) {
    .stats-card, .speed-card, .menu-card {
        padding: 14px 18px;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.98);
    }
}

.pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Main Menu Styles */
#main-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(26, 35, 126, 0.4) 0%, rgba(10, 14, 39, 0.8) 50%, rgba(0, 0, 0, 0.95) 100%);
    backdrop-filter: blur(5px);
    z-index: 1000;
    animation: fadeIn 0.5s ease-out;
    padding: 10px;
    overflow-y: auto;
}

.menu-container {
    max-width: 500px;
    width: 100%;
    max-height: 95vh;
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: slideUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 10px;
    margin: auto;
}

/* Custom scrollbar for menu */
.menu-container::-webkit-scrollbar {
    width: 6px;
}

.menu-container::-webkit-scrollbar-track {
    background: rgba(10, 14, 39, 0.3);
    border-radius: 10px;
}

.menu-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.5) 0%, rgba(123, 47, 255, 0.5) 100%);
    border-radius: 10px;
}

.menu-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.7) 0%, rgba(123, 47, 255, 0.7) 100%);
}

.game-title {
    text-align: center;
    margin-bottom: 0;
    flex-shrink: 0;
}

.title-gradient {
    display: block;
    font-size: clamp(36px, 8vw, 52px);
    font-weight: 900;
    letter-spacing: clamp(3px, 1vw, 6px);
    background: linear-gradient(135deg, #00D9FF 0%, #7B2FFF 50%, #FF2E97 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite alternate;
    line-height: 1.1;
}

.subtitle {
    display: block;
    font-size: clamp(12px, 2.5vw, 14px);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 2px;
    margin-top: 6px;
    text-transform: uppercase;
}

.menu-content {
    max-width: 600px;
    width: 90%;
    display: flex;
    flex-direction: column;
    gap: 30px;
    animation: slideUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.game-title {
    text-align: center;
    margin-bottom: 20px;
}

.title-gradient {
    display: block;
    font-size: 72px;
    font-weight: 900;
    letter-spacing: 8px;
    background: linear-gradient(135deg, #00D9FF 0%, #7B2FFF 50%, #FF2E97 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(0, 217, 255, 0.3);
    animation: glow 3s ease-in-out infinite alternate;
}

.subtitle {
    display: block;
    font-size: 18px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 3px;
    margin-top: 10px;
    text-transform: uppercase;
}

.menu-panel {
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(30px) saturate(180%);
    border-radius: 20px;
    padding: clamp(20px, 4vw, 28px);
    border: 2px solid rgba(0, 217, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.menu-panel h2 {
    color: rgba(255, 255, 255, 0.95);
    font-size: clamp(18px, 4vw, 22px);
    font-weight: 700;
    margin-bottom: 18px;
    text-align: center;
    letter-spacing: 1px;
}

.setting-group {
    margin-bottom: 20px;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    display: block;
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(13px, 2.5vw, 14px);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.button-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: 8px;
}

.option-btn {
    background: rgba(139, 157, 195, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border: 2px solid rgba(139, 157, 195, 0.3);
    padding: clamp(10px, 2vw, 14px) clamp(12px, 2.5vw, 20px);
    border-radius: 12px;
    font-size: clamp(12px, 2.5vw, 14px);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.3px;
}

.option-btn:hover {
    background: rgba(139, 157, 195, 0.2);
    border-color: rgba(0, 217, 255, 0.5);
    color: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 217, 255, 0.2);
}

.option-btn.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(123, 47, 255, 0.3) 100%);
    border-color: rgba(0, 217, 255, 0.8);
    color: #00D9FF;
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.option-btn:active {
    transform: translateY(0) scale(0.97);
}

.start-btn {
    width: 100%;
    margin-top: 10px;
    padding: clamp(14px, 3vw, 18px);
    background: linear-gradient(135deg, #00D9FF 0%, #7B2FFF 100%);
    border: none;
    border-radius: 14px;
    font-size: clamp(16px, 3.5vw, 18px);
    font-weight: 700;
    letter-spacing: 2px;
    color: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.start-btn:hover::before {
    left: 100%;
}

.start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 217, 255, 0.6);
}

.start-btn:active {
    transform: translateY(0) scale(0.98);
}

.menu-footer {
    text-align: center;
    padding: 14px;
    background: rgba(10, 14, 39, 0.5);
    border-radius: 16px;
    border: 1px solid rgba(139, 157, 195, 0.2);
    flex-shrink: 0;
}

.menu-footer p {
    color: rgba(255, 255, 255, 0.7);
    font-size: clamp(11px, 2.5vw, 13px);
    line-height: 1.5;
}

.setting-group {
    margin-bottom: 24px;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    display: block;
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.button-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
}

.option-btn {
    background: rgba(139, 157, 195, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border: 2px solid rgba(139, 157, 195, 0.3);
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.3px;
}

.option-btn:hover {
    background: rgba(139, 157, 195, 0.2);
    border-color: rgba(0, 217, 255, 0.5);
    color: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 217, 255, 0.2);
}

.option-btn.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(123, 47, 255, 0.3) 100%);
    border-color: rgba(0, 217, 255, 0.8);
    color: #00D9FF;
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.option-btn:active {
    transform: translateY(0) scale(0.97);
}

.start-btn {
    width: 100%;
    margin-top: 20px;
    padding: 18px;
    background: linear-gradient(135deg, #00D9FF 0%, #7B2FFF 100%);
    border: none;
    border-radius: 14px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.start-btn:hover::before {
    left: 100%;
}

.start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 217, 255, 0.6);
}

.start-btn:active {
    transform: translateY(0) scale(0.98);
}

.menu-footer {
    text-align: center;
    padding: 20px;
    background: rgba(10, 14, 39, 0.5);
    border-radius: 16px;
    border: 1px solid rgba(139, 157, 195, 0.2);
}

.menu-footer p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(0, 217, 255, 0.3),
                     0 0 40px rgba(123, 47, 255, 0.2);
    }
    to {
        text-shadow: 0 0 40px rgba(0, 217, 255, 0.5),
                     0 0 60px rgba(123, 47, 255, 0.3),
                     0 0 80px rgba(255, 46, 151, 0.2);
    }
}

/* Mobile Menu Adjustments */
@media (max-width: 768px) {
    .title-gradient {
        font-size: 48px;
        letter-spacing: 4px;
    }
    
    .subtitle {
        font-size: 14px;
        letter-spacing: 2px;
    }
    
    .menu-panel {
        padding: 30px 20px;
    }
    
    .menu-panel h2 {
        font-size: 20px;
    }
    
    .button-group {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .start-btn {
        font-size: 16px;
    }
}

/* Advanced Settings Styles */
.advanced-toggle {
    width: 100%;
    padding: 14px 20px;
    background: rgba(139, 157, 195, 0.1);
    border: 1px solid rgba(139, 157, 195, 0.25);
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.advanced-toggle:hover {
    background: rgba(139, 157, 195, 0.15);
    border-color: rgba(0, 217, 255, 0.4);
}

.toggle-arrow {
    transition: transform 0.3s ease;
    font-size: 12px;
}

.advanced-toggle.active .toggle-arrow {
    transform: rotate(-180deg);
}

.advanced-settings {
    margin-top: 15px;
    padding: 20px;
    background: rgba(10, 14, 39, 0.5);
    border-radius: 12px;
    border: 1px solid rgba(139, 157, 195, 0.15);
    animation: slideDown 0.3s ease-out;
}

.advanced-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 15px;
}

.advanced-setting {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.advanced-setting label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.advanced-setting .label-text {
    flex: 1;
}

.advanced-setting .help-btn {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border-radius: 50%;
    background: rgba(0, 217, 255, 0.15);
    border: 1px solid rgba(0, 217, 255, 0.3);
    color: #00D9FF;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    padding: 0;
}

.advanced-setting .help-btn:hover {
    background: rgba(0, 217, 255, 0.25);
    border-color: rgba(0, 217, 255, 0.5);
    transform: scale(1.1);
}

.advanced-setting input[type="range"] {
    width: 100%;
    height: 4px;
    background: rgba(139, 157, 195, 0.2);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.advanced-setting input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #00D9FF, #7B2FFF);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 217, 255, 0.4);
    transition: all 0.2s;
}

.advanced-setting input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.6);
}

.advanced-setting input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #00D9FF, #7B2FFF);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 217, 255, 0.4);
    transition: all 0.2s;
    border: none;
}

.advanced-setting input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.6);
}

.setting-value {
    color: #00D9FF;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    min-height: 20px;
}

.reset-btn {
    width: 100%;
    padding: 10px;
    background: rgba(255, 107, 157, 0.15);
    border: 1px solid rgba(255, 107, 157, 0.3);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.reset-btn:hover {
    background: rgba(255, 107, 157, 0.25);
    border-color: rgba(255, 107, 157, 0.5);
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        max-height: 500px;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .advanced-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .advanced-setting label {
        font-size: 12px;
    }
}

/* Help Button Styles */
.help-btn {
    background: rgba(0, 217, 255, 0.15);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #00D9FF;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
    flex-shrink: 0;
}

.help-btn:hover {
    background: rgba(0, 217, 255, 0.3);
    border-color: rgba(0, 217, 255, 0.6);
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.5);
}

.help-btn:active {
    transform: scale(0.95);
}

/* Tooltip Popup Styles */
.tooltip-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.tooltip-popup:not(.hidden) {
    opacity: 1;
    pointer-events: all;
}

.tooltip-content {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.98) 0%, rgba(20, 27, 66, 0.98) 100%);
    border: 2px solid rgba(0, 217, 255, 0.4);
    border-radius: 16px;
    padding: 24px;
    max-width: 400px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 40px rgba(0, 217, 255, 0.3);
    animation: tooltipSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.tooltip-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 24px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
    line-height: 1;
}

.tooltip-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(0, 217, 255, 0.6);
    color: #00D9FF;
    transform: rotate(90deg);
}

#tooltip-title {
    color: #00D9FF;
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 12px 0;
    letter-spacing: 0.5px;
}

#tooltip-text {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .tooltip-content {
        max-width: 340px;
        padding: 20px;
    }
    
    #tooltip-title {
        font-size: 18px;
    }
    
    #tooltip-text {
        font-size: 14px;
    }
}