/**
 * Creative Scroll to Top Button - Frontend Styles
 * Version: 1.0.0
 */

/* CSS Variables for customization */
:root {
    --creative-scroll-to-top-button-primary: #8b5cf6;
    --creative-scroll-to-top-button-hover: #7c3aed;
    --creative-scroll-to-top-button-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --creative-scroll-to-top-button-transition-elastic: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    
    /* Additional color variables */
    --creative-scroll-to-top-button-accent: #f59e0b;
    --creative-scroll-to-top-button-blue: #3b82f6;
    --creative-scroll-to-top-button-cyan: #06b6d4;
    --creative-scroll-to-top-button-pink: #ec4899;
    --creative-scroll-to-top-button-dark: #0f172a;
    --creative-scroll-to-top-button-white: #ffffff;
    
    /* Shadow variables */
    --creative-scroll-to-top-button-shadow-glow: 0 0 20px rgba(139, 92, 246, 0.5);
    --creative-scroll-to-top-button-shadow-holographic: 0 8px 32px rgba(6, 182, 212, 0.3);
    --creative-scroll-to-top-button-shadow-neon: 0 0 30px rgba(6, 182, 212, 0.8);
}

/* Container */
#creative-scroll-to-top-button-container {
    position: fixed;
    z-index: 9999;
}

#creative-scroll-to-top-button-container[data-position="bottom-right"] {
    bottom: 2rem;
    right: 2rem;
}

#creative-scroll-to-top-button-container[data-position="bottom-left"] {
    bottom: 2rem;
    left: 2rem;
}

#creative-scroll-to-top-button-container[data-position="bottom-center"] {
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

/* Base button styles */
.creative-scroll-to-top-button-btn {
    width: 3.5rem;
    height: 3.5rem;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--creative-scroll-to-top-button-transition);
    transform: translateY(1rem);
    opacity: 0;
    pointer-events: none;
    position: relative;
    outline: none;
    font-family: inherit;
    font-size: 16px;
    line-height: 1;
}

.creative-scroll-to-top-button-btn.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.creative-scroll-to-top-button-btn.hidden {
    opacity: 0;
    transform: translateY(1rem);
    pointer-events: none;
}

/* Classic Button */
.creative-scroll-to-top-button-classic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-accent));
    color: var(--creative-scroll-to-top-button-white);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.creative-scroll-to-top-button-classic:hover {
    transform: scale(1.1) translateY(0);
    box-shadow: var(--creative-scroll-to-top-button-shadow-glow);
}

/* Progress Circle Button */
.creative-scroll-to-top-button-progress {
    background: rgba(139, 92, 246, 0.9);
    backdrop-filter: blur(12px);
    color: var(--creative-scroll-to-top-button-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 4rem;
    height: 4rem;
}

.creative-scroll-to-top-button-progress-circle {
    position: absolute;
    top: 2px;
    left: 2px;
}

.creative-scroll-to-top-button-progress-stroke {
    transition: stroke-dashoffset 0.3s ease;
    transform: rotate(-90deg);
    transform-origin: center;
    stroke: var(--creative-scroll-to-top-button-primary);
}

.creative-scroll-to-top-button-progress-icon {
    position: relative;
    z-index: 1;
    color: var(--creative-scroll-to-top-button-white);
}

/* Rocket Button */
.creative-scroll-to-top-button-rocket {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-blue), var(--creative-scroll-to-top-button-primary));
    color: var(--creative-scroll-to-top-button-white);
    animation: creative-scroll-to-top-button-rocket-float 2s ease-in-out infinite;
}

.creative-scroll-to-top-button-rocket:hover {
    transform: scale(1.1) translateY(-2px);
}

.creative-scroll-to-top-button-rocket.launching {
    animation: creative-scroll-to-top-button-rocket-launch 0.6s ease-out;
}

@keyframes creative-scroll-to-top-button-rocket-float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-3px); }
}

@keyframes creative-scroll-to-top-button-rocket-launch {
    0% { transform: scale(1) translateY(0) rotate(0deg); }
    50% { transform: scale(1.2) translateY(-20px) rotate(-10deg); }
    100% { transform: scale(1) translateY(0) rotate(0deg); }
}

/* Bubble Button */
.creative-scroll-to-top-button-bubble {
    background: rgba(139, 92, 246, 0.7);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--creative-scroll-to-top-button-primary);
    animation: creative-scroll-to-top-button-bubble-float 3s ease-in-out infinite;
}

.creative-scroll-to-top-button-bubble:hover {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(245, 158, 11, 0.3));
}

@keyframes creative-scroll-to-top-button-bubble-float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Minimal Button */
.creative-scroll-to-top-button-minimal {
    background: rgba(139, 92, 246, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--creative-scroll-to-top-button-white);
    width: 3rem;
    height: 3rem;
    animation: creative-scroll-to-top-button-minimal-glow 2s ease-in-out infinite;
}

@keyframes creative-scroll-to-top-button-minimal-glow {
    0%, 100% { box-shadow: 0 0 10px rgba(139, 92, 246, 0.3); }
    50% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.6); }
}

/* Cosmic Button */
.creative-scroll-to-top-button-cosmic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-accent));
    color: var(--creative-scroll-to-top-button-white);
    animation: creative-scroll-to-top-button-cosmic-pulse 2s ease-in-out infinite;
}

.creative-scroll-to-top-button-cosmic:hover {
    transform: scale(1.1) rotate(5deg);
}

@keyframes creative-scroll-to-top-button-cosmic-pulse {
    0%, 100% { box-shadow: 0 0 15px rgba(139, 92, 246, 0.5); }
    50% { box-shadow: 0 0 25px rgba(245, 158, 11, 0.6); }
}

/* Holographic Button */
.creative-scroll-to-top-button-holographic {
    background: linear-gradient(45deg, 
        rgba(6, 182, 212, 0.2), 
        rgba(139, 92, 246, 0.2), 
        rgba(236, 72, 153, 0.2)
    );
    backdrop-filter: blur(12px);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: var(--creative-scroll-to-top-button-cyan);
    animation: creative-scroll-to-top-button-holographic-shimmer 3s ease-in-out infinite;
}

@keyframes creative-scroll-to-top-button-holographic-shimmer {
    0%, 100% { filter: hue-rotate(0deg) brightness(1); }
    33% { filter: hue-rotate(120deg) brightness(1.2); }
    66% { filter: hue-rotate(240deg) brightness(1.1); }
}

/* Neon Button */
.creative-scroll-to-top-button-neon {
    background: var(--creative-scroll-to-top-button-dark);
    border: 2px solid var(--creative-scroll-to-top-button-cyan);
    color: var(--creative-scroll-to-top-button-cyan);
    box-shadow: 
        0 0 10px rgba(6, 182, 212, 0.5),
        inset 0 0 10px rgba(6, 182, 212, 0.1);
    animation: creative-scroll-to-top-button-neon-pulse 2s ease-in-out infinite;
}

@keyframes creative-scroll-to-top-button-neon-pulse {
    0%, 100% { 
        box-shadow: 
            0 0 10px rgba(6, 182, 212, 0.5),
            inset 0 0 10px rgba(6, 182, 212, 0.1);
    }
    50% { 
        box-shadow: 
            0 0 20px rgba(6, 182, 212, 0.8),
            inset 0 0 20px rgba(6, 182, 212, 0.2);
    }
}

/* Magic Button */
.creative-scroll-to-top-button-magic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-pink), var(--creative-scroll-to-top-button-accent));
    color: var(--creative-scroll-to-top-button-white);
    box-shadow: var(--creative-scroll-to-top-button-shadow-holographic);
    transition: var(--creative-scroll-to-top-button-transition-elastic);
}

.creative-scroll-to-top-button-magic:hover {
    transform: scale(1.1);
}

.creative-scroll-to-top-button-magic.casting {
    animation: creative-scroll-to-top-button-magic-sparkle 2s ease-out;
}

@keyframes creative-scroll-to-top-button-magic-sparkle {
    0% { transform: scale(1) rotate(0deg); filter: brightness(1); }
    25% { transform: scale(1.2) rotate(5deg); filter: brightness(1.5); }
    50% { transform: scale(1.1) rotate(-3deg); filter: brightness(1.3); }
    75% { transform: scale(1.15) rotate(2deg); filter: brightness(1.4); }
    100% { transform: scale(1) rotate(0deg); filter: brightness(1); }
}

/* Side Progress Bar - Always positioned at browser scroll bar, independent of button position */
.creative-scroll-to-top-button-side-progress {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    left: auto !important;
    transform: none !important;
    width: 4px;
    height: 100vh;
    background: rgba(139, 92, 246, 0.1);
    z-index: 9998;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.creative-scroll-to-top-button-side-progress.visible {
    opacity: 1;
}

.creative-scroll-to-top-button-progress-fill {
    width: 100%;
    background: linear-gradient(to top, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-hover));
    border-radius: 2px;
    transition: height 0.1s ease;
    height: 0%;
}

/* Cosmic Background Effects (Optional) */
.creative-scroll-to-top-button-cosmic::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-accent), var(--creative-scroll-to-top-button-pink));
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.creative-scroll-to-top-button-cosmic:hover::before {
    opacity: 0.7;
}

/* Holographic Effects */
.creative-scroll-to-top-button-holographic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        transparent 30%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 70%
    );
    border-radius: 50%;
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.creative-scroll-to-top-button-holographic:hover::before {
    transform: translateX(100%);
}

/* Magic Button Sparkle Effects */
.creative-scroll-to-top-button-magic::before {
    content: '✨';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 12px;
    opacity: 0;
    animation: creative-scroll-to-top-button-magic-sparkle-orbit 4s linear infinite;
}

.creative-scroll-to-top-button-magic::after {
    content: '⭐';
    position: absolute;
    bottom: -8px;
    left: -8px;
    font-size: 10px;
    opacity: 0;
    animation: creative-scroll-to-top-button-magic-sparkle-orbit 3s linear infinite reverse;
}

@keyframes creative-scroll-to-top-button-magic-sparkle-orbit {
    0% { opacity: 0; transform: rotate(0deg) translateX(20px) rotate(0deg); }
    25% { opacity: 1; }
    75% { opacity: 1; }
    100% { opacity: 0; transform: rotate(360deg) translateX(20px) rotate(-360deg); }
}

/* Bubble Button Ripple Effect */
.creative-scroll-to-top-button-bubble::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
    opacity: 0;
}

.creative-scroll-to-top-button-bubble:hover::before {
    width: 100%;
    height: 100%;
    opacity: 1;
}

/* Neon Button Glow Enhancement */
.creative-scroll-to-top-button-neon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        var(--creative-scroll-to-top-button-cyan), 
        transparent, 
        var(--creative-scroll-to-top-button-cyan)
    );
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.creative-scroll-to-top-button-neon:hover::before {
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    #creative-scroll-to-top-button-container[data-position="bottom-right"] {
        bottom: 1rem;
        right: 1rem;
    }
    
    #creative-scroll-to-top-button-container[data-position="bottom-left"] {
        bottom: 1rem;
        left: 1rem;
    }
    
    #creative-scroll-to-top-button-container[data-position="bottom-center"] {
        bottom: 1rem;
    }
    
    .creative-scroll-to-top-button-btn {
        width: 3rem;
        height: 3rem;
    }
    
    .creative-scroll-to-top-button-progress {
        width: 3.5rem;
        height: 3.5rem;
    }
    
    .creative-scroll-to-top-button-minimal {
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (max-width: 480px) {
    .creative-scroll-to-top-button-btn {
        width: 2.8rem;
        height: 2.8rem;
    }
    
    .creative-scroll-to-top-button-progress {
        width: 3.2rem;
        height: 3.2rem;
    }
    
    .creative-scroll-to-top-button-minimal {
        width: 2.3rem;
        height: 2.3rem;
    }
}

/* Color Overrides - These will be dynamically updated by user settings */
.creative-scroll-to-top-button-classic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-hover)) !important;
}

.creative-scroll-to-top-button-classic:hover {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-hover), var(--creative-scroll-to-top-button-primary)) !important;
}

.creative-scroll-to-top-button-progress {
    background: var(--creative-scroll-to-top-button-primary) !important;
    background: rgba(139, 92, 246, 0.9) !important;
}

.creative-scroll-to-top-button-progress:hover {
    background: var(--creative-scroll-to-top-button-hover) !important;
    background: rgba(124, 58, 237, 0.9) !important;
}

.creative-scroll-to-top-button-rocket {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-hover)) !important;
}

.creative-scroll-to-top-button-rocket:hover {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-hover), var(--creative-scroll-to-top-button-primary)) !important;
}

.creative-scroll-to-top-button-bubble {
    color: var(--creative-scroll-to-top-button-primary) !important;
}

.creative-scroll-to-top-button-bubble:hover {
    color: var(--creative-scroll-to-top-button-hover) !important;
}

.creative-scroll-to-top-button-minimal {
    background: var(--creative-scroll-to-top-button-primary) !important;
    background: rgba(139, 92, 246, 0.8) !important;
}

.creative-scroll-to-top-button-minimal:hover {
    background: var(--creative-scroll-to-top-button-hover) !important;
    background: rgba(124, 58, 237, 0.8) !important;
}

.creative-scroll-to-top-button-cosmic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-hover)) !important;
}

.creative-scroll-to-top-button-cosmic:hover {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-hover), var(--creative-scroll-to-top-button-primary)) !important;
}

.creative-scroll-to-top-button-holographic {
    color: var(--creative-scroll-to-top-button-primary) !important;
    border-color: var(--creative-scroll-to-top-button-primary) !important;
}

.creative-scroll-to-top-button-holographic:hover {
    color: var(--creative-scroll-to-top-button-hover) !important;
    border-color: var(--creative-scroll-to-top-button-hover) !important;
}

.creative-scroll-to-top-button-neon {
    border-color: var(--creative-scroll-to-top-button-primary) !important;
    color: var(--creative-scroll-to-top-button-primary) !important;
}

.creative-scroll-to-top-button-neon:hover {
    border-color: var(--creative-scroll-to-top-button-hover) !important;
    color: var(--creative-scroll-to-top-button-hover) !important;
}

.creative-scroll-to-top-button-magic {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-hover), var(--creative-scroll-to-top-button-accent)) !important;
}

.creative-scroll-to-top-button-magic:hover {
    background: linear-gradient(135deg, var(--creative-scroll-to-top-button-hover), var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-accent)) !important;
}

/* Accessibility */
.creative-scroll-to-top-button-btn:focus {
    outline: 2px solid var(--creative-scroll-to-top-button-primary);
    outline-offset: 2px;
}

.creative-scroll-to-top-button-btn:focus-visible {
    outline: 2px solid var(--creative-scroll-to-top-button-primary);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .creative-scroll-to-top-button-btn {
        border: 2px solid currentColor;
    }
    
    .creative-scroll-to-top-button-holographic,
    .creative-scroll-to-top-button-bubble,
    .creative-scroll-to-top-button-minimal {
        background: var(--creative-scroll-to-top-button-primary) !important;
        color: var(--creative-scroll-to-top-button-white) !important;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .creative-scroll-to-top-button-btn,
    .creative-scroll-to-top-button-side-progress,
    .creative-scroll-to-top-button-progress-fill,
    .creative-scroll-to-top-button-progress-stroke {
        animation: none !important;
        transition: opacity 0.2s ease !important;
    }
    
    .creative-scroll-to-top-button-btn::before,
    .creative-scroll-to-top-button-btn::after {
        animation: none !important;
    }
}

/* ========== NEW CREATIVE BUTTON VARIANTS ========== */

/* Liquid Wave Button */
.creative-scroll-to-top-button-liquid {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    color: var(--creative-scroll-to-top-button-white);
    border-radius: 50%;
    overflow: hidden;
    animation: creative-scroll-to-top-button-liquid-flow 2s ease-in-out infinite;
}

.creative-scroll-to-top-button-liquid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    animation: creative-scroll-to-top-button-liquid-ripple 2s ease-in-out infinite;
    pointer-events: none;
}

.creative-scroll-to-top-button-liquid:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.6);
}

@keyframes creative-scroll-to-top-button-liquid-ripple {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

@keyframes creative-scroll-to-top-button-liquid-flow {
    0%, 100% { border-radius: 50%; }
    25% { border-radius: 60% 40% 60% 40%; }
    50% { border-radius: 40% 60% 40% 60%; }
    75% { border-radius: 60% 40% 60% 40%; }
}

/* Origami Fold Button */
.creative-scroll-to-top-button-origami {
    background: linear-gradient(135deg, #f7f1e8, #e8dcc6);
    color: #8b4513;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    overflow: hidden;
}

.creative-scroll-to-top-button-origami::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: creative-scroll-to-top-button-origami-fold 3s linear infinite;
}

.creative-scroll-to-top-button-origami:hover {
    transform: scale(1.1) rotateZ(5deg);
    box-shadow: 0 8px 25px rgba(139, 69, 19, 0.3);
}

@keyframes creative-scroll-to-top-button-origami-fold {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Quantum Shift Button */
.creative-scroll-to-top-button-quantum {
    background: radial-gradient(circle, #1e1b4b, #312e81);
    border: 2px solid var(--creative-scroll-to-top-button-primary);
    color: var(--creative-scroll-to-top-button-primary);
    overflow: visible;
}

.creative-scroll-to-top-button-quantum::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--creative-scroll-to-top-button-primary);
    border-radius: 50%;
    box-shadow: 
        0 0 0 20px rgba(139, 92, 246, 0.1),
        0 0 0 40px rgba(139, 92, 246, 0.05);
    animation: creative-scroll-to-top-button-quantum-pulse 2s ease-in-out infinite;
}

.creative-scroll-to-top-button-quantum:hover {
    transform: scale(1.1);
    animation: creative-scroll-to-top-button-quantum-teleport 0.5s ease-in-out;
}

@keyframes creative-scroll-to-top-button-quantum-pulse {
    0%, 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.5); }
}

@keyframes creative-scroll-to-top-button-quantum-teleport {
    0% { opacity: 1; }
    50% { opacity: 0; transform: scale(0.8) rotate(180deg); }
    100% { opacity: 1; transform: scale(1.1) rotate(360deg); }
}

/* Morphing Geometry Button */
.creative-scroll-to-top-button-morphing {
    background: linear-gradient(45deg, var(--creative-scroll-to-top-button-pink), var(--creative-scroll-to-top-button-primary));
    color: var(--creative-scroll-to-top-button-white);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    transition: var(--creative-scroll-to-top-button-transition-elastic);
}

.creative-scroll-to-top-button-morphing:hover {
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    transform: scale(1.1) rotate(45deg);
    background: linear-gradient(45deg, var(--creative-scroll-to-top-button-primary), var(--creative-scroll-to-top-button-blue));
}

.creative-scroll-to-top-button-morphing svg {
    transition: var(--creative-scroll-to-top-button-transition-elastic);
}

.creative-scroll-to-top-button-morphing:hover svg {
    transform: rotate(45deg) scale(0.8);
}

/* Flame Burst Button */
.creative-scroll-to-top-button-flame {
    background: radial-gradient(circle at center, #f97316, #dc2626);
    color: #fef3c7;
    overflow: visible;
}

.creative-scroll-to-top-button-flame::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.3), transparent 70%);
    border-radius: 50%;
    animation: creative-scroll-to-top-button-flame-flicker 1.5s ease-in-out infinite alternate;
    pointer-events: none;
}

.creative-scroll-to-top-button-flame:hover {
    transform: scale(1.2);
    animation: creative-scroll-to-top-button-flame-burst 0.6s ease-out;
    box-shadow: 
        0 0 30px rgba(249, 115, 22, 0.8),
        0 0 60px rgba(220, 38, 38, 0.4);
}

@keyframes creative-scroll-to-top-button-flame-flicker {
    0% { transform: scale(1) rotate(0deg); opacity: 0.7; }
    100% { transform: scale(1.1) rotate(2deg); opacity: 1; }
}

@keyframes creative-scroll-to-top-button-flame-burst {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); box-shadow: 0 0 50px #f97316, 0 0 100px #dc2626; }
    100% { transform: scale(1.2); }
}

/* Crystal Prism Button */
.creative-scroll-to-top-button-crystal {
    background: linear-gradient(135deg, 
        #ef4444, 
        #f59e0b, 
        #10b981, 
        #06b6d4, 
        var(--creative-scroll-to-top-button-primary), 
        var(--creative-scroll-to-top-button-pink));
    background-size: 400% 400%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--creative-scroll-to-top-button-white);
    clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
    overflow: hidden;
    animation: creative-scroll-to-top-button-crystal-rainbow 3s ease-in-out infinite;
}

.creative-scroll-to-top-button-crystal::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.6) 50%, transparent 70%);
    animation: creative-scroll-to-top-button-crystal-refraction 2s linear infinite;
}

.creative-scroll-to-top-button-crystal:hover {
    transform: scale(1.1) rotate(30deg);
    animation-duration: 0.5s;
    filter: brightness(1.3) saturate(1.5);
}

@keyframes creative-scroll-to-top-button-crystal-rainbow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes creative-scroll-to-top-button-crystal-refraction {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Back to Top Button */
.creative-scroll-to-top-button-back-to-top {
    min-width: 100px;
    height: 48px;
    border-radius: 24px;
    background: var(--creative-scroll-to-top-button-white);
    color: #333;
    border: 2px solid #e74c3c;
    flex-direction: row;
    gap: 6px;
    padding: 0 16px;
    font-family: system-ui, -apple-system, sans-serif;
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.15);
}

.creative-scroll-to-top-button-back-to-top:hover {
    background: #e74c3c;
    color: var(--creative-scroll-to-top-button-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(231, 76, 60, 0.25);
}