/* Modern Futuristic Sprite Slicer Styles */

/* CSS Variables for consistent theming */
:root {
    --primary-glow: #00d4ff;
    --secondary-glow: #ff00ff;
    --accent-glow: #00ff88;
    --bg-dark: #0a0a0f;
    --bg-medium: #1a1a2e;
    --bg-light: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --border-glow: rgba(0, 212, 255, 0.3);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a2e 50%, #16213e 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Animated background particles */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 255, 136, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-10px) translateY(-10px); }
    50% { transform: translateX(10px) translateY(10px); }
    75% { transform: translateX(-5px) translateY(5px); }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Top Bar with glowing effect */
.top-bar {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    box-shadow: var(--shadow-glow);
    position: relative;
    z-index: 100;
    height: 60px;
}

.top-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-glow), transparent);
    animation: headerGlow 3s ease-in-out infinite;
}

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

.top-bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 2rem;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.top-bar-left:hover {
    background: rgba(0, 212, 255, 0.05);
    transform: translateY(-1px);
}

.top-bar-center {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.top-bar-center .primary-btn {
    background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.top-bar-center .primary-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.4);
}

.top-bar-center .primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.top-bar-right {
    display: flex;
    align-items: center;
}

@keyframes logoPulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 10px var(--primary-glow)); }
    50% { transform: scale(1.05); filter: drop-shadow(0 0 15px var(--primary-glow)); }
}

/* Cool Animated Logo with Slash Effect */
.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary-glow);
    filter: drop-shadow(0 0 10px var(--primary-glow));
    animation: logoPulse 2s ease-in-out infinite;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    overflow: visible;
    /* Add grid lines effect */
    background: 
        linear-gradient(90deg, transparent 49%, var(--primary-glow) 49%, var(--primary-glow) 51%, transparent 51%),
        linear-gradient(0deg, transparent 49%, var(--primary-glow) 49%, var(--primary-glow) 51%, transparent 51%);
    background-size: 100% 100%;
    background-position: center;
}

.logo-icon:hover {
    background: 
        linear-gradient(45deg, transparent 49%, var(--primary-glow) 49%, var(--primary-glow) 51%, transparent 51%),
        linear-gradient(-45deg, transparent 49%, var(--secondary-glow) 49%, var(--secondary-glow) 51%, transparent 51%);
    background-size: 100% 100%;
    background-position: center;
    transform: scale(1.1);
    filter: drop-shadow(0 0 20px var(--primary-glow));
}

/* Enhanced slash effect with multiple slices */
.logo-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-glow);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: -1;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--secondary-glow);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: -2;
}

/* Slash effect on hover */
.logo-icon:hover::before {
    clip-path: polygon(0 0, 45% 0, 45% 45%, 0 45%);
    transform: translate(-4px, -4px) rotate(-5deg);
    filter: drop-shadow(0 0 15px var(--primary-glow));
}

.logo-icon:hover::after {
    clip-path: polygon(55% 0, 100% 0, 100% 55%, 55% 55%);
    transform: translate(4px, -4px) rotate(5deg);
    filter: drop-shadow(0 0 15px var(--secondary-glow));
}

/* Corner pieces that fall off */
.logo-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
    height: 30%;
    background: var(--primary-glow);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1;
    opacity: 0;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30%;
    height: 30%;
    background: var(--secondary-glow);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1;
    opacity: 0;
}

.logo-icon:hover::before {
    opacity: 1;
    transform: translate(-12px, -12px) rotate(-20deg);
    filter: drop-shadow(0 0 12px var(--primary-glow));
}

.logo-icon:hover::after {
    opacity: 1;
    transform: translate(12px, -12px) rotate(20deg);
    filter: drop-shadow(0 0 12px var(--secondary-glow));
}

.header-title {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.header-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: auto;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Main Layout */
.main-layout {
    display: flex;
    height: calc(100vh - 60px);
    overflow: hidden;
}

/* Left Sidebar */
.left-sidebar {
    width: 320px;
    background: linear-gradient(180deg, rgba(26, 26, 46, 0.9) 0%, rgba(22, 22, 33, 0.95) 100%);
    backdrop-filter: blur(20px);
    border-right: 2px solid var(--border-glow);
    overflow-y: auto;
    flex-shrink: 0;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
}

.sidebar-content {
    padding: 1.5rem;
    height: 100%;
    overflow-y: auto;
}

.sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-glow);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-glow);
    text-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

/* Center Content */
.center-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

/* Right Sidebar */
.right-sidebar {
    width: 280px;
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glow);
    overflow-y: auto;
    flex-shrink: 0;
}

/* Statistics Content */
.stats-content {
    margin-bottom: 2rem;
}

.stat-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glow);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.stat-item:hover {
    border-color: var(--primary-glow);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-glow);
    font-family: 'JetBrains Mono', monospace;
}

.sidebar-subtitle {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-glow);
}

/* Top Bar Export Options */
.export-options {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.export-btn {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glow);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.export-btn:hover:not(:disabled) {
    border-color: var(--primary-glow);
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-1px);
}

.export-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.export-btn i {
    color: var(--primary-glow);
}

/* Legacy Layout (for backward compatibility) */
.main {
    flex-grow: 1;
    padding: 2rem 0;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .grid-layout {
        grid-template-columns: 1fr 2fr;
        gap: 2rem;
    }
}

@media (min-width: 1280px) {
    .grid-layout {
        grid-template-columns: 1fr 3fr;
    }
}

/* Glassmorphism Controls Panel */
.controls-panel {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 1rem;
    box-shadow: var(--shadow-glow);
    padding: 2rem;
    position: sticky;
    top: 2rem;
    transition: all 0.3s ease;
}

.controls-panel:hover {
    box-shadow: var(--shadow-glow-strong);
    transform: translateY(-2px);
}

/* Updated panel styles for new layout */
.upload-panel {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 1rem;
    box-shadow: var(--shadow-glow);
    padding: 1.5rem;
    margin: 1rem;
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 400px;
}



.panel-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-glow);
    text-align: center;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--primary-glow);
}

/* Floating Mode Toggle */
.mode-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.75rem;
    padding: 0.25rem;
    border: 1px solid var(--border-glow);
    position: relative;
    overflow: hidden;
}

.mode-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    border-radius: 0.5rem;
    transition: transform 0.3s ease;
    z-index: 1;
}

.mode-toggle[data-active="batch"]::before {
    transform: translateX(100%);
}

.mode-btn {
    position: relative;
    z-index: 2;
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.mode-btn:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.mode-btn.active {
    color: var(--bg-dark);
    font-weight: 600;
}

/* Floating Slicing Mode Toggle */
.slicing-mode-toggle {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.slicing-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

.slicing-btn:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-glow);
    color: var(--primary-glow);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    transform: translateY(-2px);
}

.slicing-btn.active {
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    color: var(--bg-dark);
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.sparkles-icon {
    width: 1rem;
    height: 1rem;
    color: currentColor;
}

/* Floating Input Groups */
.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-glow);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.05);
}

/* Floating Info Box */
.info-box {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-top: 1rem;
    backdrop-filter: blur(10px);
}

.info-box p {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.mono {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    color: var(--primary-glow);
    font-weight: 600;
}

/* Floating Primary Button */
.primary-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    border: none;
    border-radius: 0.75rem;
    color: var(--bg-dark);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.primary-btn::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 ease;
}

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

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.4);
}

.primary-btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Floating Secondary Button */
.secondary-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.secondary-btn:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-glow);
    color: var(--primary-glow);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

/* Floating Download Button */
.download-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(45deg, var(--accent-glow), #00ffcc);
    border: none;
    border-radius: 0.75rem;
    color: var(--bg-dark);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.download-btn::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 ease;
}

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

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.4);
}

.download-btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Section Titles with Glow */
.section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-glow);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--primary-glow);
}

/* Floating Action Buttons */
.floating-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.floating-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.floating-btn::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 ease;
}

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

.floating-btn-primary {
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    color: var(--bg-dark);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.floating-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
}

.floating-btn-secondary {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glow);
    color: var(--text-secondary);
}

.floating-btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-glow);
    color: var(--primary-glow);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.floating-btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    border-color: var(--border-glow);
}

.floating-btn-icon {
    width: 1rem;
    height: 1rem;
    color: currentColor;
}

/* Control Sections */
.control-section {
    margin-bottom: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glow);
    border-radius: 0.5rem;
    padding: 1rem;
    transition: all 0.3s ease;
}

.control-section:hover {
    border-color: var(--primary-glow);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

/* Filter Sections */
.filter-section {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.filter-section:hover {
    border-color: var(--primary-glow);
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.1);
}

.filter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    flex: 1;
}

.filter-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.8rem;
    text-shadow: 0 0 3px rgba(255, 255, 255, 0.1);
}

.filter-subtitle {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    opacity: 0.8;
}

/* Toggle Button */
.toggle-btn {
    position: relative;
    width: 3rem;
    height: 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glow);
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    padding: 0.125rem;
}

.toggle-slider {
    width: 1.25rem;
    height: 1.25rem;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: all 0.3s ease;
    transform: translateX(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.toggle-btn[aria-checked="true"] .toggle-slider {
    background: var(--primary-glow);
    transform: translateX(1.5rem);
    box-shadow: 0 0 8px var(--primary-glow);
}

.toggle-btn:hover {
    border-color: var(--primary-glow);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* Color reduction toggle styles */
.color-reduction-toggle {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0.5rem;
    border: 1px solid var(--border-glow);
}

.color-toggle-btn {
    position: relative;
    flex: 1;
    height: 2rem;
    background: var(--bg-medium);
    border: 1px solid var(--border-glow);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.color-toggle-btn .toggle-slider {
    width: 0.75rem;
    height: 0.75rem;
    top: 50%;
    left: 0.25rem;
    transform: translateY(-50%);
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0, 212, 255, 0.3);
}

.color-toggle-btn[aria-checked="true"] {
    background: var(--primary-glow);
    border-color: var(--primary-glow);
    color: var(--bg-dark);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.color-toggle-btn[aria-checked="true"] .toggle-slider {
    background: var(--bg-dark);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

.color-toggle-btn:hover {
    border-color: var(--primary-glow);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.2);
}

.toggle-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.warning-badge {
    background: var(--secondary-glow);
    color: var(--bg-dark);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    box-shadow: 0 0 5px rgba(255, 0, 255, 0.3);
}

/* Icons */
.palette-icon,
.ruler-icon,
.filter-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary-glow);
    filter: drop-shadow(0 0 3px var(--primary-glow));
    font-size: 1rem;
    margin-right: 0.4rem;
}

.palette-icon:hover,
.ruler-icon:hover,
.filter-icon:hover {
    filter: drop-shadow(0 0 8px var(--primary-glow));
    transform: scale(1.1);
    transition: all 0.3s ease;
}

/* Naming Section */
.naming-section {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.section-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-glow);
}

.tag-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary-glow);
}

/* Batch Info */
.batch-info {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-top: 1rem;
}

.batch-info p {
    color: var(--accent-glow);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* Batch Files Collapsible */
.batch-files-collapsible {
    margin-top: 1rem;
}

.batch-files-toggle {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glow);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    text-align: left;
}

.batch-files-toggle:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-glow);
    color: var(--primary-glow);
}

.batch-files-hidden {
    margin-top: 0.5rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border-glow);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
}

.content-wrapper {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 1rem;
    box-shadow: var(--shadow-glow);
    padding: 2rem;
    min-height: 600px;
    transition: all 0.3s ease;
}

.content-wrapper:hover {
    box-shadow: var(--shadow-glow-strong);
}

/* Upload Area Styling */

/* Upload Area with Glow */
.upload-area {
    width: 100%;
    max-width: 500px;
    padding: 3rem 2rem;
    border: 2px dashed var(--border-glow);
    border-radius: 1rem;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin: 0 auto;
}

.upload-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1.5rem;
    color: var(--primary-glow);
    filter: drop-shadow(0 0 10px var(--primary-glow));
    animation: uploadIconFloat 3s ease-in-out infinite;
}

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

.upload-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-glow);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 4s ease-in-out infinite;
}

.particle:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 0.8s;
}

.particle:nth-child(3) {
    bottom: 30%;
    left: 20%;
    animation-delay: 1.6s;
}

.particle:nth-child(4) {
    top: 40%;
    right: 25%;
    animation-delay: 2.4s;
}

.particle:nth-child(5) {
    bottom: 20%;
    right: 10%;
    animation-delay: 3.2s;
}

@keyframes particleFloat {
    0%, 100% { 
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    50% { 
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(0, 212, 255, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-area:hover::before {
    opacity: 1;
}

.upload-area:hover {
    border-color: var(--primary-glow);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
    transform: translateY(-5px);
}

.upload-area.dragging {
    border-color: var(--primary-glow);
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
}

.upload-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-highlight {
    color: var(--primary-glow);
    text-shadow: 0 0 10px var(--primary-glow);
}

.upload-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.upload-formats {
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
}

/* File Input */
#file-input {
    display: none;
}

/* Status Messages */
.status-container {
    margin-top: 1rem;
}

.status-message {
    padding: 1rem;
    border-radius: 0.75rem;
    font-weight: 500;
    text-align: center;
}

.status-error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #ff6b6b;
}

.status-info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--primary-glow);
}

.status-loading {
    background: rgba(255, 255, 0, 0.1);
    border: 1px solid rgba(255, 255, 0, 0.3);
    color: #ffd93d;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Preview Panel */
.preview-panel {
    display: none;
}

.preview-panel.active {
    display: block;
}

.preview-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.preview-placeholder {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 2rem;
}

/* Sprite Grid - OPTIMIZED */
.sprite-grid {
    display: inline-block;
    width: 100%;
    padding: 1.5rem;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 0.75rem;
    margin: 0;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
    /* Performance optimizations */
    will-change: scroll-position;
    contain: layout style paint;
    transform: translateZ(0); /* Force hardware acceleration */
}



/* Sprite Items with Glow - OPTIMIZED */
.sprite-item {
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-radius: 0.75rem;
    padding: 0.25rem;
    text-align: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: inline-block;
    margin: 0.25rem;
    vertical-align: top;
    max-width: 100%;
    box-sizing: border-box;
    /* Performance optimizations */
    will-change: transform;
    contain: layout style paint;
    transform: translateZ(0); /* Force hardware acceleration */
    backface-visibility: hidden; /* Prevent flickering */
}



.sprite-item img {
    border-radius: 0.5rem;
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    /* Performance optimizations */
    will-change: transform;
    transform: translateZ(0); /* Force hardware acceleration */
    backface-visibility: hidden; /* Prevent flickering */
    contain: layout style paint;
}

/* Group Sections */
.group-section {
    margin-bottom: 2rem;
}

.group-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
}

.group-name-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--primary-glow);
    font-weight: 600;
    font-size: 1.125rem;
    outline: none;
}

.group-name-input:focus {
    text-shadow: 0 0 10px var(--primary-glow);
}

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

/* File Headers */
.file-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glow);
    border-radius: 0.75rem;
}

.file-title {
    font-weight: 600;
    color: var(--primary-glow);
}

.file-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Floating Status Indicator */
.floating-status {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    pointer-events: none;
}

.status-indicator {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 2rem;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
    transform: translateX(100%);
    opacity: 0;
}

.status-indicator.show {
    transform: translateX(0);
    opacity: 1;
}

.status-dot {
    width: 0.75rem;
    height: 0.75rem;
    background: var(--accent-glow);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

.status-indicator.processing .status-dot {
    background: var(--primary-glow);
    animation: statusSpin 1s linear infinite;
}

.status-indicator.error .status-dot {
    background: #ff6b6b;
    animation: statusError 0.5s ease-in-out infinite;
}

.status-text {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

@keyframes statusSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes statusError {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .controls-panel {
        position: static;
        margin-bottom: 2rem;
    }
    
    .grid-layout {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        padding: 1rem 0;
    }
    
    .header-title {
        font-size: 1.5rem;
    }
    
    .floating-status {
        top: 1rem;
        right: 1rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-white { color: var(--text-primary); }
.text-gray-very-light { color: var(--text-secondary); }
.bg-gray-dark { background-color: var(--bg-dark); }
.bg-gray-medium { background-color: var(--bg-medium); }
.bg-gray-light { background-color: var(--bg-light); }
.bg-brand-secondary { background-color: var(--primary-glow); }
.border-gray-light { border-color: var(--border-glow); }
.border-brand-secondary { border-color: var(--primary-glow); }
.rounded-lg { border-radius: 0.75rem; }
.rounded-xl { border-radius: 1rem; }
.shadow-lg { box-shadow: var(--shadow-glow); }
.transition { transition: all 0.3s ease; }
.transition-colors { transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease; }
.transition-all { transition: all 0.3s ease; }
.duration-200 { transition-duration: 0.2s; }
.duration-300 { transition-duration: 0.3s; }
.hover\:bg-blue-600:hover { background-color: var(--primary-glow); }
.hover\:bg-gray-500:hover { background-color: rgba(255, 255, 255, 0.1); }
.hover\:bg-gray-light:hover { background-color: rgba(0, 212, 255, 0.1); }
.hover\:border-brand-secondary:hover { border-color: var(--primary-glow); }
.hover\:bg-gray-900\/20:hover { background-color: rgba(0, 0, 0, 0.2); }
.hover\:scale-110:hover { transform: scale(1.1); }
.hover\:z-10:hover { z-index: 10; }
.disabled\:bg-gray-light:disabled { background-color: rgba(255, 255, 255, 0.1); }
.disabled\:cursor-not-allowed:disabled { cursor: not-allowed; }
.disabled\:text-gray-very-light:disabled { color: var(--text-secondary); }
.disabled\:opacity-50:disabled { opacity: 0.5; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--primary-glow); }
.focus\:ring-brand-secondary:focus { box-shadow: 0 0 0 2px var(--primary-glow); }
.focus\:border-brand-secondary:focus { border-color: var(--primary-glow); }
.focus\:outline-none:focus { outline: none; }
.animate-spin { animation: spin 1s linear infinite; }
.hidden { display: none; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.grid-cols-10 { grid-template-columns: repeat(10, minmax(0, 1fr)); }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }
.w-full { width: 100%; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.w-11 { width: 2.75rem; }
.w-12 { width: 3rem; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-12 { height: 3rem; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-mono { font-family: 'JetBrains Mono', 'Fira Code', monospace; }
.relative { position: relative; }
.absolute { position: absolute; }
.sticky { position: sticky; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }
.object-contain { object-fit: contain; }
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }
.pointer-events-none { pointer-events: none; }
.whitespace-nowrap { white-space: nowrap; }
.scale-110 { transform: scale(1.1); }
.translate-x-0 { transform: translateX(0); }
.translate-x-5 { transform: translateX(1.25rem); }
.opacity-50 { opacity: 0.5; }
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-transparent { border-color: transparent; }
.rounded-full { border-radius: 9999px; }
.rounded-md { border-radius: 0.375rem; }
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.ring-0 { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); }
.ring-2 { box-shadow: 0 0 0 2px rgba(0, 0, 0, 0); }
.ring-offset-2 { box-shadow: 0 0 0 2px rgba(0, 0, 0, 0), 0 0 0 4px rgba(0, 0, 0, 0); }
.min-h-screen { min-height: 100vh; }
.min-h-\[200px\] { min-height: 200px; }
.max-h-\[70vh\] { max-height: 70vh; }
.max-h-\[15rem\] { max-height: 15rem; }
.max-w-full { max-width: 100%; }
.max-h-full { max-height: 100%; }
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-video { aspect-ratio: 16 / 9; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-col { flex-direction: column; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.grid-cols-10 { grid-template-columns: repeat(10, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-8 { grid-column: span 8 / span 8; }
.col-span-9 { grid-column: span 9 / span 9; }
.col-span-12 { grid-column: span 12 / span 12; }

@media (min-width: 640px) {
    .sm\:grid-cols-6 {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (min-width: 768px) {
    .md\:grid-cols-8 {
        grid-template-columns: repeat(8, minmax(0, 1fr));
    }
    
    .md\:px-8 {
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .md\:p-8 {
        padding: 2rem;
    }
}

@media (min-width: 1024px) {
    .lg\:col-span-4 {
        grid-column: span 4 / span 4;
    }
    
    .lg\:col-span-6 {
        grid-column: span 6 / span 6;
    }
    
    .lg\:col-span-8 {
        grid-column: span 8 / span 8;
    }
    
    .lg\:grid-cols-6 {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
    
    .lg\:grid-cols-12 {
        grid-template-columns: repeat(12, minmax(0, 1fr));
    }
}

@media (min-width: 1280px) {
    .xl\:col-span-3 {
        grid-column: span 3 / span 3;
    }
    
    .xl\:col-span-9 {
        grid-column: span 9 / span 9;
    }
    
    .xl\:grid-cols-8 {
        grid-template-columns: repeat(8, minmax(0, 1fr));
    }
}

@media (min-width: 1536px) {
    .\2xl\:grid-cols-10 {
        grid-template-columns: repeat(10, minmax(0, 1fr));
    }
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 14px;
    height: 14px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 7px;
    border: 1px solid var(--border-glow);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-glow);
    border-radius: 7px;
    border: 2px solid var(--bg-dark);
    min-height: 20px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-glow);
    box-shadow: 0 0 10px var(--primary-glow);
}

::-webkit-scrollbar-thumb:active {
    background: var(--accent-glow);
}

::-webkit-scrollbar-corner {
    background: var(--bg-dark);
}

/* Firefox scrollbar */
* {
    scrollbar-width: auto;
    scrollbar-color: var(--primary-glow) var(--bg-dark);
}

/* Ensure scrollbars are always visible for specific elements */
.left-sidebar,
.right-sidebar,
.sidebar-content,
.sprite-grid,
.batch-files,
.preview-content {
    scrollbar-width: auto;
    scrollbar-color: var(--primary-glow) var(--bg-dark);
}

/* Additional scrollbar styling for better integration with the theme */
.left-sidebar::-webkit-scrollbar-track,
.right-sidebar::-webkit-scrollbar-track,
.sidebar-content::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 7px;
}

.left-sidebar::-webkit-scrollbar-thumb,
.right-sidebar::-webkit-scrollbar-thumb,
.sidebar-content::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
    border-radius: 7px;
    border: 2px solid var(--bg-dark);
}

.left-sidebar::-webkit-scrollbar-thumb:hover,
.right-sidebar::-webkit-scrollbar-thumb:hover,
.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, var(--secondary-glow), var(--accent-glow));
    box-shadow: 0 0 15px var(--primary-glow);
}

/* Top Bar Export Options */
.export-options {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
}

.top-bar-btn {
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glow);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    min-height: 2.5rem;
    white-space: nowrap;
}

.top-bar-btn:hover:not(:disabled) {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-glow);
    color: var(--primary-glow);
    transform: translateY(-1px);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.top-bar-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.top-bar-btn i {
    color: currentColor;
    font-size: 0.875rem;
}

.start-over-btn {
    background: rgba(220, 53, 69, 0.3);
    border-color: #dc3545;
    color: #ff6b6b;
}

.start-over-btn:hover {
    background: rgba(220, 53, 69, 0.5);
    border-color: #ff6b6b;
    color: #ff8a8a;
    box-shadow: 0 0 15px rgba(220, 53, 69, 0.3);
}

/* Responsive adjustments for top bar */
@media (max-width: 768px) {
    .export-options {
        gap: 0.5rem;
    }
    
    .top-bar-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .top-bar-btn span {
        display: none;
    }
}

/* Clean 3D Text Effect */
.top-bar-title {
    position: relative;
    font-size: 1.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-primary);
    display: grid;
    place-content: center;
    margin: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.top-bar-title > div {
    grid-area: 1/1/-1/-1;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.top-bar-title .top {
    clip-path: polygon(0% 0%, 100% 0%, 100% 48%, 0% 58%);
    color: var(--primary-glow);
}

.top-bar-title .bottom {
    clip-path: polygon(0% 60%, 100% 50%, 100% 100%, 0% 100%);
    color: transparent;
    background: linear-gradient(177deg, var(--bg-dark) 53%, var(--secondary-glow) 65%);
    background-clip: text;
    -webkit-background-clip: text;
    transform: translateX(-0.02em);
}

/* Clean hover effects */
.top-bar-title:hover .top {
    color: var(--accent-glow);
    transform: translateY(-2px) scale(1.02);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.top-bar-title:hover .bottom {
    background: linear-gradient(177deg, var(--bg-dark) 53%, var(--accent-glow) 65%);
    background-clip: text;
    -webkit-background-clip: text;
    transform: translateX(-0.02em) translateY(2px) scale(1.02);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Slice effect on hover */
.top-bar-title:hover .top {
    clip-path: polygon(0% 0%, 100% 0%, 100% 45%, 0% 55%);
}

.top-bar-title:hover .bottom {
    clip-path: polygon(0% 65%, 100% 55%, 100% 100%, 0% 100%);
}

/* Slicing Square Animation */
.custom-square-icon {
    width: 2.5rem;
    height: 2.5rem;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: visible;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    gap: 2px;
    animation: squareFloat 4s ease-in-out infinite;
}

/* Individual grid pieces */
.custom-square-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1;
}

/* Grid piece 1 - Top left (small) */
.custom-square-icon::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--primary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 2 - Top center (medium) */
.custom-square-icon .piece-2 {
    position: absolute;
    top: 2px;
    left: calc(33.33% + 2px);
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--secondary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 3 - Top right (small) */
.custom-square-icon .piece-3 {
    position: absolute;
    top: 2px;
    right: 2px;
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--primary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 4 - Middle left (medium) */
.custom-square-icon .piece-4 {
    position: absolute;
    top: calc(33.33% + 2px);
    left: 2px;
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--secondary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 5 - Center (large) */
.custom-square-icon .piece-5 {
    position: absolute;
    top: calc(33.33% + 2px);
    left: calc(33.33% + 2px);
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--primary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 6 - Middle right (medium) */
.custom-square-icon .piece-6 {
    position: absolute;
    top: calc(33.33% + 2px);
    right: 2px;
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--secondary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 7 - Bottom left (small) */
.custom-square-icon .piece-7 {
    position: absolute;
    bottom: 2px;
    left: 2px;
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--primary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

/* Grid piece 8 - Bottom center (medium) */
.custom-square-icon .piece-8 {
    position: absolute;
    bottom: 2px;
    left: calc(33.33% + 2px);
    width: calc(33.33% - 4px);
    height: calc(33.33% - 4px);
    background: var(--secondary-glow);
    border-radius: 2px;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

@keyframes squareFloat {
    0%, 100% { 
        transform: translateY(0) rotate(0deg);
    }
    50% { 
        transform: translateY(-2px) rotate(1deg);
    }
}

/* Hover effects - each piece moves in different directions */
.top-bar-left:hover .custom-square-icon::after {
    transform: translate(-8px, -8px) rotate(-10deg);
    box-shadow: 0 0 12px var(--primary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-2 {
    transform: translateY(-6px) rotate(5deg);
    box-shadow: 0 0 12px var(--secondary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-3 {
    transform: translate(8px, -8px) rotate(10deg);
    box-shadow: 0 0 12px var(--primary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-4 {
    transform: translate(-6px, 0) rotate(-5deg);
    box-shadow: 0 0 12px var(--secondary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-5 {
    transform: scale(1.1) rotate(2deg);
    box-shadow: 0 0 15px var(--primary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-6 {
    transform: translate(6px, 0) rotate(5deg);
    box-shadow: 0 0 12px var(--secondary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-7 {
    transform: translate(-8px, 8px) rotate(-10deg);
    box-shadow: 0 0 12px var(--primary-glow);
}

.top-bar-left:hover .custom-square-icon .piece-8 {
    transform: translateY(6px) rotate(-5deg);
    box-shadow: 0 0 12px var(--secondary-glow);
}

.top-bar-left:hover .top-bar-title .top {
    color: var(--accent-glow);
    transform: translateY(-2px) scale(1.02);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.top-bar-left:hover .top-bar-title .bottom {
    background: linear-gradient(177deg, var(--bg-dark) 53%, var(--accent-glow) 65%);
    background-clip: text;
    -webkit-background-clip: text;
    transform: translateX(-0.02em) translateY(2px) scale(1.02);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.top-bar-left:hover .top-bar-title .top {
    clip-path: polygon(0% 0%, 100% 0%, 100% 45%, 0% 55%);
}

.top-bar-left:hover .top-bar-title .bottom {
    clip-path: polygon(0% 65%, 100% 55%, 100% 100%, 0% 100%);
}