:root {
            --primary: #6366f1;
            --primary-light: #a5b4fc;
            --primary-dark: #4338ca;
            --secondary: #ec4899;
            --tertiary: #10b981;
            --accent: #f59e0b;
            --success: #22c55e;
            --warning: #f97316;
            --error: #ef4444;

            --dark: #0f172a;
            --dark-card: #1e293b;
            --dark-surface: #334155;

            
            --light: #ffffff;
            --light-card: #f8fafc;
            --light-surface: #e2e8f0;

          
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-tertiary: #94a3b8;
            --text-inverse: #f8fafc;

       
            --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --gradient-tertiary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --gradient-gold: linear-gradient(135deg, #ffd89b 0%, #19547b 100%);
            --gradient-islamic: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #0284c7 100%);

            
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
            --shadow-glow-hover: 0 0 30px rgba(99, 102, 241, 0.5);

         
            --space-xs: 0.25rem;
            --space-sm: 0.5rem;
            --space-md: 1rem;
            --space-lg: 1.5rem;
            --space-xl: 2rem;
            --space-2xl: 3rem;
            --space-3xl: 4rem;

            
            --radius-sm: 0.375rem;
            --radius: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --radius-2xl: 2rem;
            --radius-full: 9999px;

            --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        }

        .dark-mode {
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-tertiary: #94a3b8;
            --text-inverse: #1e293b;
            --light: #0f172a;
            --light-card: #1e293b;
            --light-surface: #334155;
        }

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

        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--light);
            color: var(--text-primary);
            line-height: 1.6;
            transition: var(--transition);
            overflow-x: hidden;
        }

        .arabic {
            font-family: 'Amiri Quran', 'Amiri', 'Scheherazade New', serif;
            direction: rtl;
            font-feature-settings: "liga" 1, "dlig" 1;
        }

       
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 var(--space-md);
            }
        }

        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
            animation: slideDown 0.8s ease-out;
        }

        .dark-mode header {
            background: rgba(15, 23, 42, 0.95);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--space-lg) 0;
            min-height: 80px;
        }

        .logo {
            font-size: 1.75rem;
            font-weight: 750;
            transition: var(--transition-bounce);
            align-items: center;
            background: var(--gradient-islamic);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            transition: var(--transition-bounce);
            margin-left: 1rem;

        }

        .logo:hover {
            transform: scale(1.05);
            filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.3));
        }

        .logo i {
            font-size: 2rem;
            background: var(--gradient-islamic);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: pulse 2s infinite;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--space-xl);
        }

        .nav-links {
            display: flex;
            gap: var(--space-xl);
            list-style: none;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            padding: var(--space-sm) var(--space-md);
            border-radius: var(--radius-full);
            position: relative;
            transition: var(--transition);
            overflow: hidden;
        }

        .nav-links a::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--gradient-primary);
            transition: var(--transition);
            z-index: -1;
        }

        .nav-links a:hover::before,
        .nav-links a.active::before {
            left: 0;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .theme-toggle {
            background: var(--light-surface);
            border: none;
            color: var(--text-secondary);
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            cursor: pointer;
            transition: var(--transition-bounce);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            position: relative;
            overflow: hidden;
        }

        .theme-toggle::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0;
            transition: var(--transition);
        }

        .theme-toggle:hover::before {
            opacity: 1;
        }

        .theme-toggle:hover {
            color: white;
            transform: scale(1.1) rotate(15deg);
            box-shadow: var(--shadow-glow);
        }

        /* Mobile menu button */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: var(--space-sm);
            border-radius: var(--radius);
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            background: var(--light-surface);
            transform: scale(1.1);
        }

        /* Mobile menu with slide animation */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-slow);
            z-index: 999;
            max-height: calc(100vh - 80px);
            overflow-y: auto;
        }

        .dark-mode .mobile-menu {
            background: rgba(15, 23, 42, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu-links {
            padding: var(--space-xl);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

        .mobile-menu-links a {
            color: var(--text-primary);
            text-decoration: none;
            padding: var(--space-lg);
            border-radius: var(--radius-lg);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: var(--space-md);
            transition: var(--transition);
            background: var(--light-card);
        }

        .mobile-menu-links a:hover {
            background: var(--gradient-primary);
            color: white;
            transform: translateX(10px);
            box-shadow: var(--shadow-md);
        }

        /* Hero section with enhanced design */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--gradient-islamic);
            overflow: hidden;
            margin-top: 80px;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="pattern" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23pattern)"/></svg>');
            animation: float 20s ease-in-out infinite;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            animation: rotate 30s linear infinite;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: white;
            max-width: 1000px;
            margin: 0 auto;
            animation: fadeInUp 1.2s ease-out;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 8vw, 4.5rem);
            font-weight: 800;
            margin-bottom: var(--space-xl);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            animation: textGlow 3s ease-in-out infinite alternate;
        }

        .subtitle {
            font-size: clamp(1.1rem, 3vw, 1.4rem);
            margin-bottom: var(--space-3xl);
            opacity: 0.95;
            line-height: 1.7;
            animation: fadeInUp 1.2s ease-out 0.3s both;
        }

        /* Search bar with modern styling */
        .search-container {
            max-width: 600px;
            margin: 0 auto var(--space-3xl);
            position: relative;
            animation: fadeInUp 1.2s ease-out 0.6s both;
        }

        .search-input {
            width: 100%;
            padding: var(--space-lg) var(--space-lg) var(--space-lg) 3.5rem;
            border: none;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            font-size: 1.1rem;
            box-shadow: var(--shadow-xl);
            transition: var(--transition);
            outline: none;
        }

        .search-input:focus {
            box-shadow: var(--shadow-xl), 0 0 0 4px rgba(255, 255, 255, 0.3);
            transform: scale(1.02);
        }

        .search-icon {
            position: absolute;
            left: var(--space-lg);
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 1.25rem;
        }

        /* Feature cards */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-xl);
            margin: var(--space-3xl) 0;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            text-align: center;
            transition: var(--transition-bounce);
            position: relative;
            overflow: hidden;
            animation: fadeInUp 1.2s ease-out calc(0.9s + var(--delay, 0s)) both;
        }

        .feature-card::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: var(--transition-slow);
        }

        .feature-card:hover::before {
            left: 100%;
        }

        .feature-card:hover {
            transform: translateY(-10px) scale(1.05);
            background: rgba(255, 255, 255, 0.25);
            box-shadow: var(--shadow-xl);
        }

        .feature-icon {
            font-size: 3rem;
            margin-bottom: var(--space-lg);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: bounce 2s infinite;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: var(--space-md);
            font-weight: 700;
        }

        .feature-card p {
            opacity: 0.9;
            line-height: 1.6;
        }

        /* CTA Buttons */
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--space-lg);
            margin: var(--space-3xl) 0;
            animation: fadeInUp 1.2s ease-out 1.2s both;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--space-lg) var(--space-2xl);
            border-radius: var(--radius-full);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition-bounce);
            border: none;
            cursor: pointer;
            gap: var(--space-sm);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(10px);
        }

        .btn-primary {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-lg);
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.2) 100%);
            transition: var(--transition);
        }

        .btn-primary:hover::before {
            left: 0;
        }

        .btn-primary:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: var(--shadow-xl);
        }

        .btn-outline {
            background: transparent;
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* Verse of the day */
        .verse-of-the-day {
            background: rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            margin-top: var(--space-3xl);
            text-align: center;
            position: relative;
            overflow: hidden;
            animation: fadeInUp 1.2s ease-out 1.5s both;
        }

        .verse-of-the-day::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
            animation: shimmer 3s ease-in-out infinite;
        }

        .verse-arabic {
            font-size: clamp(1.5rem, 5vw, 2.5rem);
            line-height: 1.8;
            margin-bottom: var(--space-lg);
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .verse-translation {
            font-size: clamp(1rem, 3vw, 1.3rem);
            margin-bottom: var(--space-md);
            font-style: italic;
            opacity: 0.9;
        }

        .verse-reference {
            font-size: 0.95rem;
            opacity: 0.8;
            font-weight: 500;
        }

        /* Creator credits */
        .creator-credits {
            margin-top: var(--space-3xl);
            text-align: center;
            opacity: 0.8;
            font-size: 1.9rem;
            animation: fadeIn 2s ease-out 2s both;
        }

        .creator-credits .highlight {
            font-weight: 700;
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
        }

        .scroll-controls {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            background: rgba(0, 0, 0, 0.7);
            padding: 12px 20px;
            border-radius: 45px;
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);

        }


        .scroll-btn {
            padding: var(--space-sm) var(--space-lg);
            border: none;
            border-radius: var(--radius-full);
            background: var(--primary);
            color: white;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            transition: var(--transition-bounce);
            font-size: 0.9rem;
        }

        .scroll-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px) scale(1.05);
            box-shadow: var(--shadow-glow);
        }

        .stop-btn {
            background: var(--error);
        }

        .stop-btn:hover {
            background: #dc2626;
        }

        /* Main sections */
        .section {
            padding: var(--space-3xl) 0;
            position: relative;
        }

        .section-title {
            text-align: center;
            margin-bottom: var(--space-3xl);
            animation: fadeInUp 0.8s ease-out;
        }

        .section-title h2 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 800;
            background: var(--gradient-islamic);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: var(--space-md);
            position: relative;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -var(--space-sm);
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient-islamic);
            border-radius: var(--radius-full);
        }

        .section-title p {
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.7;
        }

        /* Grid layouts */
        .grid {
            display: grid;
            gap: var(--space-xl);
            margin-top: var(--space-2xl);
        }

        .grid-cols-1 {
            grid-template-columns: 1fr;
        }

        .grid-cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .grid-cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .grid-cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* Card components */
        .card {
            background: var(--light-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition-bounce);
            cursor: pointer;
            position: relative;
            border: 1px solid rgba(99, 102, 241, 0.1);
            animation: fadeInUp 0.6s ease-out calc(var(--delay, 0s)) both;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--gradient-primary);
            opacity: 0;
            transition: var(--transition);
            z-index: 0;
        }

        .card:hover::before {
            opacity: 0.05;
        }

        .card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: var(--shadow-xl);
            border-color: var(--primary);
        }

        .card.active {
            animation: pulse 2s infinite, breathe 3s ease-in-out infinite;
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .card-header {
            background: var(--gradient-islamic);
            color: white;
            padding: var(--space-xl);
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .card-number {
            font-size: 1.5rem;
            font-weight: 800;
            background: rgba(255, 255, 255, 0.2);
            width: 60px;
            height: 60px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-bounce);
            backdrop-filter: blur(10px);
        }

        .card:hover .card-number {
            transform: scale(1.1) rotate(5deg);
            background: rgba(255, 255, 255, 0.3);
        }

        .card-body {
            padding: var(--space-xl);
            position: relative;
            z-index: 1;
        }

        /* Surah cards specific styling */
        .surah-name-arabic {
            font-size: 2.5rem;
            font-weight: 600;
            line-height: 1.3;
            margin-bottom: var(--space-sm);
            color: white;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .surah-name-latin {
            font-size: 1.2rem;
            opacity: 0.95;
            color: rgba(255, 255, 255, 0.9);
        }

        .info-item {
            display: flex;
            margin-bottom: var(--space-sm);
            align-items: center;
        }

        .info-label {
            font-weight: 600;
            min-width: 120px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .info-value {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* Prayer cards */
        .prayer-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--space-lg);
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .prayer-group {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: var(--space-md);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            padding: var(--space-sm) var(--space-md);
            background: var(--light-surface);
            border-radius: var(--radius-full);
            width: fit-content;
        }

        .prayer-group i {
            color: var(--primary);
            font-size: 1.1rem;
        }

        .prayer-arabic {
            font-size: 1.8rem;
            line-height: 2;
            margin: var(--space-lg) 0;
            text-align: right;
            padding: var(--space-lg);
            background: rgba(99, 102, 241, 0.05);
            border-radius: var(--radius-lg);
            border-right: 4px solid var(--primary);
        }

        .prayer-translation {
            margin: var(--space-lg) 0;
            line-height: 1.8;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .prayer-reference {
            font-size: 0.9rem;
            color: var(--text-tertiary);
            margin-top: var(--space-lg);
            padding-top: var(--space-lg);
            border-top: 2px dashed rgba(99, 102, 241, 0.2);
            font-style: italic;
        }

        /* Tags */
        .tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            padding: var(--space-sm) var(--space-md);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            margin: 0 var(--space-xs) var(--space-xs) 0;
            font-weight: 600;
            transition: var(--transition-bounce);
            box-shadow: var(--shadow-sm);
        }

        .tag:hover {
            transform: scale(1.05);
            box-shadow: var(--shadow-glow);
        }

        /* Detail views */
        .detail-view {
            background: var(--light-card);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-xl);
            overflow: hidden;
            margin-top: var(--space-2xl);
            border: 1px solid rgba(99, 102, 241, 0.1);
            animation: slideUp 0.8s ease-out;
        }

        .detail-header {
            background: var(--gradient-islamic);
            color: white;
            padding: var(--space-3xl) var(--space-xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .detail-header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }

        .detail-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
        }

        .surah-detail-name {
            font-size: clamp(2rem, 6vw, 4rem);
            margin-bottom: var(--space-md);
            position: relative;
            z-index: 2;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            animation: textGlow 3s ease-in-out infinite alternate;
        }

        .surah-detail-latin {
            font-size: clamp(1.2rem, 4vw, 2rem);
            opacity: 0.95;
            margin-bottom: var(--space-xl);
            position: relative;
            z-index: 2;
        }

        .surah-detail-info {
            display: flex;
            justify-content: center;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .surah-detail-info-item {
            background: rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(10px);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }

        .surah-detail-info-item:hover {
            background: rgba(255, 255, 255, 0.35);
            transform: scale(1.05);
        }

        .detail-body {
            padding: var(--space-3xl);
        }

        .surah-detail-description {
            margin-bottom: var(--space-3xl);
            line-height: 1.8;
            color: var(--text-secondary);
            font-size: 1.1rem;
            text-align: center;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Ayat list */
        .ayat-list {
            margin-top: var(--space-2xl);
        }

        .ayat-item {
            border-bottom: 1px solid rgba(99, 102, 241, 0.1);
            padding: var(--space-2xl) 0;
            transition: var(--transition);
            position: relative;
        }

        .ayat-item::before {
            content: '';
            position: absolute;
            left: -var(--space-xl);
            right: -var(--space-xl);
            top: 0;
            bottom: 0;
            background: rgba(99, 102, 241, 0.02);
            border-radius: var(--radius-lg);
            opacity: 0;
            transition: var(--transition);
        }

        .ayat-item:hover::before {
            opacity: 1;
        }

        .ayat-item:hover {
            padding: var(--space-2xl) var(--space-xl);
            margin: 0 -var(--space-xl);
        }

        .ayat-number {
            background: var(--gradient-islamic);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--space-lg);
            box-shadow: var(--shadow-md);
            position: relative;
            z-index: 1;
        }

        .ayat-number::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: var(--gradient-islamic);
            border-radius: var(--radius-full);
            z-index: -1;
            opacity: 0.3;
            animation: pulse 2s infinite;
        }

        .ayat-arabic {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            text-align: right;
            line-height: 2.2;
            margin-bottom: var(--space-xl);
            color: var(--text-primary);
            padding: var(--space-xl);
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(99, 102, 241, 0.08));
            border-radius: var(--radius-lg);
            border-right: 4px solid var(--primary);
            position: relative;
            overflow: hidden;
        }

        .ayat-arabic::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: var(--transition-slow);
        }

        .ayat-item:hover .ayat-arabic::before {
            left: 100%;
        }

        .ayat-translation {
            margin-bottom: var(--space-xl);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 1.1rem;
            padding: var(--space-lg);
            background: var(--light-surface);
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--secondary);
        }

        .ayat-translation strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* Tabs */
        .tabs {
            display: flex;
            border-bottom: 2px solid var(--light-surface);
            margin-bottom: var(--space-2xl);
            background: var(--light-card);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .tab {
            padding: var(--space-lg) var(--space-xl);
            cursor: pointer;
            font-weight: 600;
            color: var(--text-secondary);
            position: relative;
            transition: var(--transition);
            background: transparent;
            border: none;
            flex: 1;
            text-align: center;
        }

        .tab::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--gradient-primary);
            transition: var(--transition);
        }

        .tab:hover {
            color: var(--primary);
            background: rgba(99, 102, 241, 0.05);
        }

        .tab.active {
            color: var(--primary);
            background: rgba(99, 102, 241, 0.1);
            font-weight: 700;
        }

        .tab.active::before {
            width: 100%;
        }

        .tab-content {
            display: none;
            animation: fadeIn 0.5s ease;
        }

        .tab-content.active {
            display: block;
        }

        /* Tafsir content */
        .tafsir-item {
            margin-bottom: var(--space-2xl);
            padding: var(--space-xl);
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(99, 102, 241, 0.02));
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--primary);
            position: relative;
            overflow: hidden;
        }

        .tafsir-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-primary);
        }

        .tafsir-item h4 {
            color: var(--primary);
            margin-bottom: var(--space-md);
            display: flex;
            align-items: center;
            font-size: 1.2rem;
            font-weight: 700;
        }

        .tafsir-item h4 i {
            margin-right: var(--space-sm);
            font-size: 1.3rem;
        }

        .tafsir-item p {
            line-height: 1.8;
            color: var(--text-primary);
            font-size: 1.05rem;
        }

        /* Audio players */
        .audio-players {
            margin-top: var(--space-xl);
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.02));
            padding: var(--space-xl);
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--tertiary);
        }

        .audio-players-title {
            font-weight: 700;
            margin-bottom: var(--space-lg);
            display: flex;
            align-items: center;
            color: var(--tertiary);
            font-size: 1.2rem;
        }

        .audio-players-title i {
            margin-right: var(--space-sm);
            font-size: 1.3rem;
        }

        .audio-player {
            display: flex;
            align-items: center;
            margin-bottom: var(--space-md);
            padding: var(--space-lg);
            border-radius: var(--radius-lg);
            transition: var(--transition-bounce);
            background: var(--light-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(16, 185, 129, 0.1);
        }

        .audio-player:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: var(--shadow-md);
            border-color: var(--tertiary);
        }

        .audio-player button {
            background: var(--gradient-tertiary);
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            margin-right: var(--space-lg);
            transition: var(--transition-bounce);
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
            font-size: 1.1rem;
        }

        .audio-player button:hover {
            transform: scale(1.1);
            box-shadow: var(--shadow-md);
        }

        .audio-player span {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Full audio player */
        .full-audio-player {
            margin-top: var(--space-2xl);
            background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
            padding: var(--space-xl);
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--success);
            position: relative;
            overflow: hidden;
        }

        .full-audio-player::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
            animation: shimmer 3s ease-in-out infinite;
        }

        .full-audio-player-title {
            font-weight: 700;
            margin-bottom: var(--space-lg);
            display: flex;
            align-items: center;
            color: var(--success);
            font-size: 1.2rem;
            position: relative;
            z-index: 1;
        }

        .full-audio-player-title i {
            margin-right: var(--space-sm);
            font-size: 1.3rem;
        }

        /* Action buttons */
        .favorite-btn {
            position: absolute;
            top: var(--space-lg);
            right: var(--space-lg);
            background: rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(10px);
            border: none;
            color: white;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition-bounce);
            z-index: 10;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .favorite-btn:hover {
            background: rgba(255, 255, 255, 0.4);
            transform: scale(1.2) rotate(15deg);
            box-shadow: var(--shadow-glow);
        }

        .favorite-btn.active {
            color: var(--accent);
            background: rgba(245, 158, 11, 0.2);
            border-color: var(--accent);
        }

        .back-btn {
            margin-top: 3rem;
            display: inline-flex;
            align-items: center;
            background: var(--gradient-primary);
            color: white;
            padding: var(--space-lg) var(--space-xl);
            border-radius: var(--radius-full);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition-bounce);
            border: none;
            cursor: pointer;
            margin-bottom: var(--space-xl);
            gap: var(--space-sm);
            box-shadow: var(--shadow-md);
            font-size: 1rem;
        }

        .back-btn:hover {
            transform: translateX(-5px) scale(1.05);
            box-shadow: var(--shadow-lg);
        }

        .btn-read {
            background: var(--gradient-tertiary);
            width: 100%;
            margin-top: var(--space-lg);
            justify-content: center;
            font-size: 1.1rem;
            padding: var(--space-lg);
        }

        .btn-read:hover {
            background: linear-gradient(135deg, #059669, #10b981);
        }

        /* Loading states */
        .loading {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: var(--space-3xl);
            min-height: 300px;
        }

        .spinner {
            width: 60px;
            height: 60px;
            border: 4px solid rgba(99, 102, 241, 0.2);
            border-left-color: var(--primary);
            border-radius: var(--radius-full);
            animation: spin 1s linear infinite;
        }

        /* Empty states */
        .empty-state {
            text-align: center;
            padding: var(--space-3xl);
            color: var(--text-secondary);
        }

        .empty-state i {
            font-size: 4rem;
            margin-bottom: var(--space-xl);
            color: var(--primary);
            opacity: 0.7;
        }

        .empty-state h3 {
            margin-bottom: var(--space-lg);
            color: var(--text-primary);
            font-size: 1.5rem;
            font-weight: 700;
        }

        .empty-state p {
            font-size: 1.1rem;
            line-height: 1.6;
        }

        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: var(--space-3xl) 0 var(--space-xl);
            margin-top: var(--space-3xl);
            position: relative;
            overflow: hidden;
        }

        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--gradient-islamic);
            opacity: 0.9;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-2xl);
            margin-bottom: var(--space-2xl);
            position: relative;
            z-index: 1;
        }

        .footer-column h3 {
            font-size: 1.4rem;
            margin-bottom: var(--space-lg);
            position: relative;
            padding-bottom: var(--space-md);
            color: white;
            font-weight: 700;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--gradient-secondary);
            border-radius: var(--radius-full);
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column ul li {
            margin-bottom: var(--space-md);
        }

        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            padding: var(--space-sm) 0;
            font-weight: 500;
        }

        .footer-column ul li a i {
            margin-right: var(--space-md);
            width: 20px;
            color: var(--primary-light);
            font-size: 1.1rem;
        }

        .footer-column ul li a:hover {
            color: white;
            transform: translateX(5px);
            padding-left: var(--space-sm);
        }

        .social-links {
            display: flex;
            gap: var(--space-lg);
            margin-top: var(--space-xl);
        }

        .social-links a {
            color: white;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-bounce);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 1.2rem;
        }

        .social-links a:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px) scale(1.1);
            box-shadow: var(--shadow-glow);
        }

        .copyright {
            text-align: center;
            padding-top: var(--space-xl);
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }

        /* Animations */
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        @keyframes pulse {

            0%,
            100% {
                transform: scale(1);
                opacity: 1;
            }

            50% {
                transform: scale(1.05);
                opacity: 0.8;
            }
        }

        @keyframes bounce {

            0%,
            20%,
            50%,
            80%,
            100% {
                transform: translateY(0);
            }

            40% {
                transform: translateY(-10px);
            }

            60% {
                transform: translateY(-5px);
            }
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0px) rotate(0deg);
            }

            33% {
                transform: translateY(-10px) rotate(1deg);
            }

            66% {
                transform: translateY(5px) rotate(-1deg);
            }
        }

        @keyframes rotate {
            from {
                transform: rotate(0deg);
            }

            to {
                transform: rotate(360deg);
            }
        }

        @keyframes shimmer {
            0% {
                transform: translateX(-100%) skewX(-15deg);
            }

            100% {
                transform: translateX(200%) skewX(-15deg);
            }
        }

        @keyframes textGlow {

            0%,
            100% {
                text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            }

            50% {
                text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.3);
            }
        }

        @keyframes breathe {

            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
            }

            50% {
                box-shadow: 0 0 0 20px rgba(99, 102, 241, 0);
            }
        }

        /* Utility classes */
        .fade-in {
            animation: fadeIn 1s ease;
        }

        .slide-up {
            animation: slideUp 0.8s ease;
        }

        .float-animation {
            animation: float 6s ease-in-out infinite;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .grid-cols-4 {
                grid-template-columns: repeat(3, 1fr);
            }

            .grid-cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }

            .nav-actions {
                gap: var(--space-lg);
            }

            .surah-detail-info {
                gap: var(--space-md);
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: flex;
            }

            .nav-links {
                display: none;
            }

            .grid-cols-2,
            .grid-cols-3,
            .grid-cols-4 {
                grid-template-columns: 1fr;
            }

            .hero {
                margin-top: 80px;
                padding: var(--space-2xl) 0;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 300px;
            }

            .surah-detail-info {
                flex-direction: column;
                align-items: center;
                gap: var(--space-sm);
            }

            .surah-detail-info-item {
                width: 100%;
                text-align: center;
            }

            .tabs {
                flex-direction: column;
                border-radius: var(--radius-lg);
            }

            .tab {
                border-bottom: 1px solid var(--light-surface);
                border-radius: 0;
            }

            .tab:last-child {
                border-bottom: none;
            }

            .detail-body {
                padding: var(--space-xl);
            }

            .ayat-item {
                padding: var(--space-xl) 0;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: var(--space-xl);
            }

            .social-links {
                justify-content: center;
                gap: var(--space-md);
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 var(--space-md);
            }

            .header-content {
                padding: var(--space-md) 0;
            }

            .hero {
                padding: var(--space-xl) 0;
            }

            .section {
                padding: var(--space-2xl) 0;
            }

            .card-header {
                padding: var(--space-lg);
            }

            .card-body {
                padding: var(--space-lg);
            }

            .detail-header {
                padding: var(--space-xl);
            }

            .detail-body {
                padding: var(--space-lg);
            }

            .scroll-controls {
                bottom: var(--space-lg);
                gap: var(--space-sm);
                padding: var(--space-sm) var(--space-lg);
            }

            .scroll-btn {
                padding: var(--space-sm) var(--space-md);
                font-size: 0.85rem;
            }
        }

        /* Print styles */
        @media print {

            .header,
            .scroll-controls,
            .btn,
            .audio-players,
            .tabs,
            footer {
                display: none !important;
            }

            .hero {
                background: none !important;
                color: black !important;
                padding: var(--space-lg) 0 !important;
            }

            .card {
                break-inside: avoid;
            }

            .ayat-item {
                break-inside: avoid;
            }
        }

        /* Accessibility improvements */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* High contrast mode */
        @media (prefers-contrast: high) {
            :root {
                --shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
                --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.5);
                --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
            }

            .card {
                border: 2px solid var(--primary);
            }

            .btn {
                border: 2px solid currentColor;
            }
        }

        /* Focus styles for accessibility */
        *:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:focus,
        .card:focus,
        .nav-links a:focus {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
        }

        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--light-surface);
            border-radius: var(--radius-full);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: var(--radius-full);
            transition: var(--transition);
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* Selection styles */
        ::selection {
            background: rgba(99, 102, 241, 0.2);
            color: var(--text-primary);
        }

        /* Glassmorphism utility classes */
        .glass {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .glass-dark {
            background: rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* Enhanced card hover effects */
        .card-3d {
            transform-style: preserve-3d;
            perspective: 1000px;
        }

        .card-3d:hover {
            transform: rotateY(5deg) rotateX(5deg) translateZ(50px);
        }

        /* Gradient text utility */
        .gradient-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Loading skeletons */
        .skeleton {
            background: linear-gradient(90deg, var(--light-surface) 25%, var(--light-card) 50%, var(--light-surface) 75%);
            background-size: 200% 100%;
            animation: loading 1.5s infinite;
        }

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

            100% {
                background-position: -200% 0;
            }
        }

        /* Notification styles */
        .notification {
            position: fixed;
            top: 100px;
            right: var(--space-xl);
            background: var(--light-card);
            border: 1px solid var(--primary);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            box-shadow: var(--shadow-xl);
            z-index: 1001;
            transform: translateX(400px);
            opacity: 0;
            transition: var(--transition-slow);
        }

        .notification.show {
            transform: translateX(0);
            opacity: 1;
        }

        .notification.success {
            border-color: var(--success);
        }

        .notification.error {
            border-color: var(--error);
        }

        .notification.warning {
            border-color: var(--warning);
        }

        /* Modal styles */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(5px);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .modal {
            background: var(--light-card);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            max-width: 90vw;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
            transform: scale(0.7);
            transition: var(--transition);
        }

        .modal-overlay.active .modal {
            transform: scale(1);
        }

        /* Tooltip styles */
        .tooltip {
            position: relative;
            cursor: help;
        }

        .tooltip::before {
            content: attr(data-tooltip);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: var(--dark);
            color: white;
            padding: var(--space-sm) var(--space-md);
            border-radius: var(--radius);
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 100;
        }

        .tooltip::after {
            content: '';
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            border: 5px solid transparent;
            border-top-color: var(--dark);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .tooltip:hover::before,
        .tooltip:hover::after {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(-5px);
        }

        /* Progress bar */
        .progress-bar {
            width: 100%;
            height: 8px;
            background: var(--light-surface);
            border-radius: var(--radius-full);
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: var(--gradient-primary);
            border-radius: var(--radius-full);
            transition: var(--transition-slow);
            position: relative;
        }

        .progress-fill::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            animation: shimmer 2s infinite;
        }

        /* Badge styles */
        .badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--space-xs) var(--space-sm);
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1;
        }

        .badge-primary {
            background: var(--primary);
            color: white;
        }

        .badge-success {
            background: var(--success);
            color: white;
        }

        .badge-warning {
            background: var(--warning);
            color: white;
        }

        .badge-error {
            background: var(--error);
            color: white;
        }

        /* Divider styles */
        .divider {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--light-surface), transparent);
            margin: var(--space-xl) 0;
        }

        .divider-text {
            position: relative;
            text-align: center;
            margin: var(--space-xl) 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .divider-text::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--light-surface), transparent);
        }

        .divider-text span {
            background: var(--light);
            padding: 0 var(--space-lg);
            position: relative;
            z-index: 1;
        }

        /* Advanced animations */
        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateX(-50px);
            }

            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @keyframes slideInRight {
            from {
                opacity: 0;
                transform: translateX(50px);
            }

            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @keyframes zoomIn {
            from {
                opacity: 0;
                transform: scale(0.8);
            }

            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        @keyframes flipInX {
            from {
                opacity: 0;
                transform: perspective(400px) rotateX(90deg);
            }

            to {
                opacity: 1;
                transform: perspective(400px) rotateX(0deg);
            }
        }

        @keyframes heartbeat {

            0%,
            100% {
                transform: scale(1);
            }

            14% {
                transform: scale(1.1);
            }

            28% {
                transform: scale(1);
            }

            42% {
                transform: scale(1.1);
            }

            70% {
                transform: scale(1);
            }
        }

        /* Animation delay utilities */
        .delay-100 {
            animation-delay: 0.1s;
        }

        .delay-200 {
            animation-delay: 0.2s;
        }

        .delay-300 {
            animation-delay: 0.3s;
        }

        .delay-400 {
            animation-delay: 0.4s;
        }

        .delay-500 {
            animation-delay: 0.5s;
        }

        /* Stagger animation for lists */
        .stagger-item {
            animation: fadeInUp 0.6s ease both;
        }

        .stagger-item:nth-child(1) {
            animation-delay: 0.1s;
        }

        .stagger-item:nth-child(2) {
            animation-delay: 0.2s;
        }

        .stagger-item:nth-child(3) {
            animation-delay: 0.3s;
        }

        .stagger-item:nth-child(4) {
            animation-delay: 0.4s;
        }

        .stagger-item:nth-child(5) {
            animation-delay: 0.5s;
        }

        .stagger-item:nth-child(6) {
            animation-delay: 0.6s;
        }

        /* Intersection Observer animations */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: var(--transition-slow);
        }

        .animate-on-scroll.in-view {
            opacity: 1;
            transform: translateY(0);
        }

        /* Dark mode specific animations */
        .dark-mode .card {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .dark-mode .card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }

        .dark-mode .hero::before {
            opacity: 0.3;
        }

        /* Performance optimizations */
        .gpu-accelerated {
            transform: translateZ(0);
            will-change: transform;
        }

        /* Smooth scroll for better UX */
        @media (prefers-reduced-motion: no-preference) {
            html {
                scroll-behavior: smooth;
            }
        }