dev_test/advanced-css.css

/*
🎨 Advanced CSS Test File for Chahuadev Emoji Cleaner Tool
🧪 Comprehensive CSS patterns with extensive emoji usage for testing
📝 Features: Complex selectors, animations, responsive design, modern CSS
🎯 Perfect for testing emoji removal from CSS files
*/

/* 🌟 CSS Variables with emoji-themed color palette */
:root {
    /* 🎨 Primary color scheme with emoji associations */
    --color-success: #28a745; /* 🟢 Green for success states */
    --color-warning: #ffc107; /* 🟡 Yellow for warning states */
    --color-danger: #dc3545;  /* 🔴 Red for danger states */
    --color-info: #17a2b8;    /* 🔵 Blue for info states */
    --color-primary: #007bff; /* 💙 Primary blue theme */
    
    /* 🎪 Advanced gradient definitions */
    --gradient-rainbow: linear-gradient(45deg, 
        #ff6b6b 0%,   /* 🍎 Red */
        #ffa500 14%,  /* 🧡 Orange */
        #ffff00 28%,  /* 💛 Yellow */
        #32cd32 42%,  /* 💚 Green */
        #00bfff 57%,  /* 💙 Blue */
        #8a2be2 71%,  /* 💜 Purple */
        #ff69b4 85%,  /* 💗 Pink */
        #ff6b6b 100%  /* 🍎 Red again */
    );
    
    --gradient-sunset: linear-gradient(135deg, 
        #ff9a9e 0%,   /* 🌅 Pink dawn */
        #fecfef 50%,  /* 🌸 Light pink */
        #fecfef 100%  /* 🌸 Pink end */
    );
    
    --gradient-ocean: linear-gradient(180deg,
        #74b9ff 0%,   /* 🌊 Light blue */
        #0984e3 50%,  /* 🌊 Ocean blue */
        #2d3436 100%  /* 🌊 Deep ocean */
    );
    
    /* 📱 Responsive breakpoints with emoji labels */
    --breakpoint-mobile: 576px;   /* 📱 Mobile devices */
    --breakpoint-tablet: 768px;   /* 📱 Tablet devices */
    --breakpoint-desktop: 992px;  /* 💻 Desktop devices */
    --breakpoint-wide: 1200px;    /* 🖥️ Wide screens */
    
    /* 🎭 Animation timing functions */
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55); /* 🎾 Bouncy animation */
    --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);   /* 🌊 Smooth animation */
    --ease-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275); /* 🎪 Elastic animation */
    
    /* 🎨 Typography with emoji fonts */
    --font-emoji: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
    --font-primary: 'Arial', 'Helvetica Neue', sans-serif;
    --font-monospace: 'Fira Code', 'Monaco', 'Consolas', monospace;
    
    /* 📏 Spacing scale with emoji references */
    --space-xs: 0.25rem;  /* 🤏 Extra small spacing */
    --space-sm: 0.5rem;   /* 👌 Small spacing */
    --space-md: 1rem;     /* 👆 Medium spacing */
    --space-lg: 2rem;     /* 👋 Large spacing */
    --space-xl: 4rem;     /* 🙌 Extra large spacing */
    
    /* 🎯 Z-index layers */
    --z-background: -1;    /* 🖼️ Background layer */
    --z-content: 1;        /* 📝 Content layer */
    --z-overlay: 100;      /* 🎭 Overlay layer */
    --z-modal: 1000;       /* 🪟 Modal layer */
    --z-tooltip: 9999;     /* 💬 Tooltip layer */
}

/* 🌍 Global reset with emoji-friendly styling */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 📄 Body styling with emoji support */
body {
    font-family: var(--font-primary), var(--font-emoji);
    line-height: 1.6;
    color: #333;
    background: var(--gradient-sunset);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 🎯 Custom emoji selectors and pseudo-elements */
.emoji-container::before {
    content: "🎨"; /* 🎨 Default emoji decoration */
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 2rem;
    z-index: var(--z-content);
    opacity: 0.7;
    transition: all 0.3s var(--ease-bounce);
}

.emoji-container.success::before { content: "✅"; }
.emoji-container.warning::before { content: "⚠️"; }
.emoji-container.danger::before { content: "❌"; }
.emoji-container.info::before { content: "ℹ️"; }

/* 🎪 Advanced CSS Grid layout with emoji labeling */
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--gradient-rainbow);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

.emoji-grid::before {
    content: "🎯 Grid Layout Active"; /* 🎯 Grid indicator */
    grid-column: 1 / -1;
    text-align: center;
    font-weight: bold;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    margin-bottom: var(--space-lg);
}

/* 📊 Complex flexbox patterns with emoji states */
.emoji-flex {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    min-height: 300px;
    background: var(--gradient-ocean);
    border-radius: 15px;
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
}

.emoji-flex::after {
    content: "🌊"; /* 🌊 Flex indicator */
    position: absolute;
    bottom: 10px;
    right: 15px;
    font-size: 3rem;
    opacity: 0.3;
    pointer-events: none;
}

/* 🎭 Advanced animation keyframes with emoji themes */
@keyframes emoji-bounce {
    0%, 100% { 
        transform: translateY(0) scale(1);
        content: "😊"; /* 😊 Happy state */
    }
    25% { 
        transform: translateY(-20px) scale(1.1);
        content: "🚀"; /* 🚀 Rising state */
    }
    50% { 
        transform: translateY(-30px) scale(1.2);
        content: "⭐"; /* ⭐ Peak state */
    }
    75% { 
        transform: translateY(-10px) scale(1.1);
        content: "🎯"; /* 🎯 Descending state */
    }
}

@keyframes emoji-pulse {
    0%, 100% { 
        transform: scale(1);
        filter: hue-rotate(0deg);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    50% { 
        transform: scale(1.05);
        filter: hue-rotate(180deg);
        box-shadow: 0 0 0 20px rgba(255, 255, 255, 0);
    }
}

@keyframes emoji-rotate {
    from { 
        transform: rotate(0deg);
        content: "🎪"; /* 🎪 Start rotation */
    }
    25% { 
        content: "🎭"; /* 🎭 Quarter turn */
    }
    50% { 
        content: "🎨"; /* 🎨 Half turn */
    }
    75% { 
        content: "🎯"; /* 🎯 Three quarter turn */
    }
    to { 
        transform: rotate(360deg);
        content: "🎪"; /* 🎪 Full rotation */
    }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes emoji-wave {
    0%, 100% { 
        transform: translateY(0) translateX(0);
        content: "🌊"; /* 🌊 Wave start */
    }
    25% { 
        transform: translateY(-10px) translateX(5px);
        content: "🌀"; /* 🌀 Wave rise */
    }
    50% { 
        transform: translateY(-20px) translateX(10px);
        content: "💨"; /* 💨 Wave peak */
    }
    75% { 
        transform: translateY(-10px) translateX(5px);
        content: "🌀"; /* 🌀 Wave fall */
    }
}

/* 🎨 Complex CSS shapes with emoji decorations */
.emoji-shape {
    position: relative;
    width: 200px;
    height: 200px;
    margin: var(--space-lg) auto;
}

.emoji-shape.triangle {
    width: 0;
    height: 0;
    border-left: 100px solid transparent;
    border-right: 100px solid transparent;
    border-bottom: 173px solid var(--color-primary);
}

.emoji-shape.triangle::before {
    content: "🔺"; /* 🔺 Triangle indicator */
    position: absolute;
    top: 60px;
    left: -15px;
    font-size: 2rem;
}

.emoji-shape.circle {
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-success), var(--color-warning));
}

.emoji-shape.circle::before {
    content: "⭕"; /* ⭕ Circle indicator */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
}

.emoji-shape.hexagon {
    width: 200px;
    height: 173px;
    background: var(--color-info);
    position: relative;
    margin: 86px auto;
}

.emoji-shape.hexagon::before,
.emoji-shape.hexagon::after {
    content: "";
    position: absolute;
    width: 0;
    border-left: 100px solid transparent;
    border-right: 100px solid transparent;
}

.emoji-shape.hexagon::before {
    bottom: 100%;
    border-bottom: 86px solid var(--color-info);
}

.emoji-shape.hexagon::after {
    top: 100%;
    border-top: 86px solid var(--color-info);
}

/* 🎯 Responsive design with emoji breakpoint indicators */
@media (max-width: 576px) /* 📱 Mobile */ {
    .emoji-grid {
        grid-template-columns: 1fr;
        padding: var(--space-md);
    }
    
    .emoji-grid::before {
        content: "📱 Mobile Layout Active";
    }
    
    .emoji-responsive::before {
        content: "📱"; /* 📱 Mobile indicator */
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 2rem;
        z-index: var(--z-tooltip);
    }
}

@media (min-width: 577px) and (max-width: 768px) /* 📱 Tablet */ {
    .emoji-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .emoji-grid::before {
        content: "📱 Tablet Layout Active";
    }
    
    .emoji-responsive::before {
        content: "📱"; /* 📱 Tablet indicator */
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 2rem;
        z-index: var(--z-tooltip);
    }
}

@media (min-width: 769px) and (max-width: 992px) /* 💻 Desktop */ {
    .emoji-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .emoji-grid::before {
        content: "💻 Desktop Layout Active";
    }
    
    .emoji-responsive::before {
        content: "💻"; /* 💻 Desktop indicator */
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 2rem;
        z-index: var(--z-tooltip);
    }
}

@media (min-width: 993px) /* 🖥️ Wide screen */ {
    .emoji-grid::before {
        content: "🖥️ Wide Screen Layout Active";
    }
    
    .emoji-responsive::before {
        content: "🖥️"; /* 🖥️ Wide screen indicator */
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 2rem;
        z-index: var(--z-tooltip);
    }
}

/* 🎪 Advanced pseudo-selectors with emoji content */
.emoji-list li:nth-child(odd)::before {
    content: "🔹"; /* 🔹 Odd list items */
    margin-right: var(--space-sm);
}

.emoji-list li:nth-child(even)::before {
    content: "🔸"; /* 🔸 Even list items */
    margin-right: var(--space-sm);
}

.emoji-list li:first-child::before {
    content: "🥇"; /* 🥇 First item */
}

.emoji-list li:last-child::before {
    content: "🏁"; /* 🏁 Last item */
}

.emoji-list li:nth-child(3n)::before {
    content: "🎯"; /* 🎯 Every third item */
}

/* 🎨 Complex CSS selectors with emoji states */
.emoji-card:not(.disabled):hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.emoji-card:not(.disabled):hover::before {
    content: "✨"; /* ✨ Hover state */
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    animation: emoji-bounce 0.6s ease;
}

.emoji-input:focus + .emoji-label::before {
    content: "🎯"; /* 🎯 Focused input */
    color: var(--color-primary);
}

.emoji-input:valid + .emoji-label::before {
    content: "✅"; /* ✅ Valid input */
    color: var(--color-success);
}

.emoji-input:invalid + .emoji-label::before {
    content: "❌"; /* ❌ Invalid input */
    color: var(--color-danger);
}

/* 🎭 Advanced CSS transformations */
.emoji-transform-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.emoji-flip {
    transition: transform 0.8s var(--ease-smooth);
}

.emoji-flip:hover {
    transform: rotateY(180deg);
}

.emoji-flip::before {
    content: "🎪"; /* 🎪 Front face */
    position: absolute;
    backface-visibility: hidden;
}

.emoji-flip::after {
    content: "🎭"; /* 🎭 Back face */
    position: absolute;
    transform: rotateY(180deg);
    backface-visibility: hidden;
}

/* 🌈 CSS Filters with emoji effects */
.emoji-filter {
    transition: all 0.3s ease;
}

.emoji-filter.sepia {
    filter: sepia(100%) hue-rotate(45deg);
}

.emoji-filter.sepia::before {
    content: "🟤"; /* 🟤 Sepia effect */
}

.emoji-filter.grayscale {
    filter: grayscale(100%);
}

.emoji-filter.grayscale::before {
    content: "⚫"; /* ⚫ Grayscale effect */
}

.emoji-filter.blur {
    filter: blur(2px);
}

.emoji-filter.blur::before {
    content: "🌫️"; /* 🌫️ Blur effect */
}

.emoji-filter.brightness {
    filter: brightness(150%) saturate(120%);
}

.emoji-filter.brightness::before {
    content: "☀️"; /* ☀️ Brightness effect */
}

/* 🎯 CSS Counters with emoji numbering */
.emoji-counter {
    counter-reset: emoji-count;
}

.emoji-counter .item {
    counter-increment: emoji-count;
}

.emoji-counter .item::before {
    content: "🎯 " counter(emoji-count) " ";
    font-weight: bold;
    color: var(--color-primary);
}

/* 🎪 Complex clip-path shapes */
.emoji-clip {
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    background: var(--gradient-rainbow);
    width: 200px;
    height: 200px;
    position: relative;
}

.emoji-clip::before {
    content: "🔻"; /* 🔻 Clipped shape indicator */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
}

/* 🎨 CSS Masks with emoji patterns */
.emoji-mask {
    mask: radial-gradient(circle, black 50%, transparent 50%);
    -webkit-mask: radial-gradient(circle, black 50%, transparent 50%);
    background: var(--gradient-sunset);
    width: 200px;
    height: 200px;
    position: relative;
}

.emoji-mask::before {
    content: "🎭"; /* 🎭 Mask indicator */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
}

/* 🔥 Advanced CSS custom properties usage */
.emoji-dynamic {
    --emoji-size: 2rem;
    --emoji-color: #ff6b6b;
    --emoji-rotation: 0deg;
    --emoji-scale: 1;
    
    font-size: var(--emoji-size);
    color: var(--emoji-color);
    transform: rotate(var(--emoji-rotation)) scale(var(--emoji-scale));
    transition: all 0.3s var(--ease-elastic);
}

.emoji-dynamic:hover {
    --emoji-size: 3rem;
    --emoji-color: #4ecdc4;
    --emoji-rotation: 15deg;
    --emoji-scale: 1.2;
}

.emoji-dynamic::before {
    content: "🎪"; /* 🎪 Dynamic emoji */
}

/* 📊 CSS Grid advanced patterns */
.emoji-grid-complex {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(6, 100px);
    grid-gap: 10px;
    padding: var(--space-lg);
}

.emoji-grid-item {
    background: var(--gradient-ocean);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.emoji-grid-item:nth-child(1) {
    grid-column: 1 / 4;
    grid-row: 1 / 3;
}

.emoji-grid-item:nth-child(1)::before {
    content: "🎯"; /* 🎯 Featured item */
}

.emoji-grid-item:nth-child(2) {
    grid-column: 4 / 7;
    grid-row: 1 / 2;
}

.emoji-grid-item:nth-child(2)::before {
    content: "🚀"; /* 🚀 Action item */
}

.emoji-grid-item:nth-child(3) {
    grid-column: 7 / 13;
    grid-row: 1 / 4;
}

.emoji-grid-item:nth-child(3)::before {
    content: "📊"; /* 📊 Data item */
}

/* 🎭 CSS Container queries (modern CSS) */
@container (min-width: 300px) {
    .emoji-container-query::before {
        content: "📱"; /* 📱 Small container */
    }
}

@container (min-width: 600px) {
    .emoji-container-query::before {
        content: "💻"; /* 💻 Medium container */
    }
}

@container (min-width: 900px) {
    .emoji-container-query::before {
        content: "🖥️"; /* 🖥️ Large container */
    }
}

/* 🌟 CSS Scroll-driven animations */
@keyframes scroll-progress {
    from {
        content: "🔄"; /* 🔄 Loading */
        transform: scaleX(0);
    }
    to {
        content: "✅"; /* ✅ Complete */
        transform: scaleX(1);
    }
}

.emoji-scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-rainbow);
    transform-origin: left;
    animation: scroll-progress linear;
    animation-timeline: scroll(root);
    z-index: var(--z-tooltip);
}

/* 🎨 Advanced CSS logical properties */
.emoji-logical {
    margin-block-start: var(--space-lg);
    margin-block-end: var(--space-lg);
    margin-inline-start: var(--space-md);
    margin-inline-end: var(--space-md);
    padding-block: var(--space-md);
    padding-inline: var(--space-lg);
    border-block-start: 2px solid var(--color-primary);
    border-inline-start: 4px solid var(--color-success);
}

.emoji-logical::before {
    content: "🌐"; /* 🌐 International layout */
    position: absolute;
    inset-block-start: 0;
    inset-inline-end: 0;
}

/* 🎪 Print styles with emoji indicators */
@media print {
    .emoji-print-only::before {
        content: "🖨️ Print Version"; /* 🖨️ Print indicator */
        display: block;
        text-align: center;
        font-weight: bold;
        margin-bottom: var(--space-md);
    }
    
    .emoji-no-print {
        display: none !important;
    }
    
    .emoji-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* 🎯 Accessibility improvements with emoji cues */
.emoji-accessible {
    position: relative;
}

.emoji-accessible:focus::before {
    content: "🎯"; /* 🎯 Focus indicator */
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 1rem;
    z-index: var(--z-tooltip);
}

.emoji-accessible[aria-pressed="true"]::after {
    content: "✅"; /* ✅ Pressed state */
    position: absolute;
    top: 0;
    right: 0;
    font-size: 1.2rem;
}

/* 🚀 Performance optimizations */
.emoji-performance {
    contain: layout style paint;
    will-change: transform, opacity;
    transform: translateZ(0); /* Create compositing layer */
}

.emoji-performance::before {
    content: "⚡"; /* ⚡ Performance optimized */
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0.7;
}

/* 🎨 Dark mode support with emoji themes */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: #64b5f6; /* 🌙 Dark mode primary */
        --color-success: #81c784; /* 🌙 Dark mode success */
        --color-warning: #ffb74d; /* 🌙 Dark mode warning */
        --color-danger: #e57373;  /* 🌙 Dark mode danger */
    }
    
    body {
        background: linear-gradient(135deg, #2c3e50, #34495e);
        color: #ecf0f1;
    }
    
    .emoji-dark-mode::before {
        content: "🌙"; /* 🌙 Dark mode indicator */
        position: fixed;
        top: 10px;
        left: 10px;
        font-size: 2rem;
        z-index: var(--z-tooltip);
    }
}

/* 🎪 High contrast mode support */
@media (prefers-contrast: high) {
    .emoji-high-contrast {
        border: 2px solid currentColor;
        background: transparent;
    }
    
    .emoji-high-contrast::before {
        content: "🔲"; /* 🔲 High contrast indicator */
        position: absolute;
        top: 0;
        right: 0;
    }
}

/* 🎯 Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .emoji-reduced-motion::before {
        content: "⏸️"; /* ⏸️ Reduced motion indicator */
        position: fixed;
        bottom: 10px;
        right: 10px;
        font-size: 1.5rem;
        z-index: var(--z-tooltip);
    }
}

/* 🌟 Modern CSS features showcase */
.emoji-modern {
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    background-size: 200% 200%;
    animation: shimmer 2s infinite;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.emoji-modern::before {
    content: "✨"; /* ✨ Modern CSS indicator */
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5rem;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* 
🎉 End of Advanced CSS Test File
📝 This file contains comprehensive CSS patterns with extensive emoji usage
🧪 Features: Variables, animations, responsive design, modern CSS features
🎯 Perfect for testing emoji removal capabilities across all CSS constructs
📊 Total emoji count: 200+ emojis in various contexts (content, comments, selectors)
✅ All CSS is valid and follows modern best practices
*/