Code Snippets Hub
Category · Interactive Difficulty Level · Intermediate Published on · January 15, 2024

Dynamic Gradient Cookie Consent Banner

A stunning cookie consent banner featuring dynamic gradient backgrounds, smooth animations, and modern interactive design

#cookie-banner #gdpr #privacy #consent #responsive #modern #animated

Responsive Design

Yes

Dark Mode Support

No

lines

997

Browser Compatibility

No

Live Preview

Interact with the component without leaving the page.

400px

Dynamic Gradient Cookie Consent Banner

A visually stunning cookie consent banner that features dynamic gradient backgrounds, smooth color transitions, and modern interactive elements. Perfect for websites that want to make a bold visual statement while maintaining GDPR compliance.

Features

  • Dynamic Gradients: Animated gradient backgrounds that shift colors smoothly
  • Modern Design: Contemporary UI with vibrant colors and smooth transitions
  • Interactive Elements: Hover effects and micro-animations enhance user engagement
  • Responsive Layout: Adapts beautifully to all screen sizes and orientations
  • GDPR Compliant: Complete consent management with granular controls
  • Accessibility First: Full keyboard navigation and screen reader support
  • Customizable Colors: Easy gradient and color scheme customization
  • Smooth Animations: Fluid transitions and entrance/exit animations

Preview

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Dynamic Gradient Cookie Banner</title>
    <style>
        :root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
            --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
            --text-light: #ffffff;
            --text-dark: #2d3748;
            --text-muted: rgba(255, 255, 255, 0.8);
            --backdrop: rgba(0, 0, 0, 0.3);
            --border-radius: 16px;
            --shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
            min-height: 100vh;
            color: var(--text-light);
            line-height: 1.6;
        }

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

        .demo-content {
            padding: 3rem 2rem;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .demo-content h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        .demo-content p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Dynamic Gradient Cookie Banner */
        .gradient-cookie-banner {
            position: fixed;
            bottom: 2rem;
            left: 2rem;
            right: 2rem;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            transform: translateY(120%);
            transition: var(--transition);
            z-index: 10000;
            max-width: 1200px;
            margin: 0 auto;
            overflow: hidden;
            position: relative;
        }

        .gradient-cookie-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        .gradient-cookie-banner.show {
            transform: translateY(0);
        }

        .cookie-container {
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 2rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cookie-icon {
            width: 60px;
            height: 60px;
            background: var(--accent-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .cookie-content {
            flex: 1;
        }

        .cookie-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-light);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cookie-description {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.6;
        }

        .cookie-link {
            color: #4facfe;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            position: relative;
        }

        .cookie-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gradient);
            transition: width 0.3s ease;
        }

        .cookie-link:hover::after {
            width: 100%;
        }

        .cookie-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* Gradient Buttons */
        .gradient-btn {
            padding: 0.875rem 1.75rem;
            border: none;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            min-width: 130px;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .gradient-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }

        .gradient-btn:hover::before {
            transform: translateX(100%);
        }

        .btn-accept {
            background: var(--success-gradient);
            box-shadow: 0 8px 16px rgba(67, 233, 123, 0.3);
        }

        .btn-accept:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(67, 233, 123, 0.4);
        }

        .btn-decline {
            background: var(--warning-gradient);
            box-shadow: 0 8px 16px rgba(250, 112, 154, 0.3);
        }

        .btn-decline:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(250, 112, 154, 0.4);
        }

        .btn-settings {
            background: var(--accent-gradient);
            box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
        }

        .btn-settings:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(79, 172, 254, 0.4);
        }

        .gradient-btn:active {
            transform: translateY(-1px);
        }

        /* Settings Modal */
        .cookie-settings-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--backdrop);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10001;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .cookie-settings-modal.show {
            opacity: 1;
            visibility: visible;
        }

        .settings-content {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            max-width: 600px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
            transform: scale(0.9) translateY(20px);
            transition: var(--transition);
            position: relative;
        }

        .cookie-settings-modal.show .settings-content {
            transform: scale(1) translateY(0);
        }

        .settings-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
            border-radius: var(--border-radius);
            pointer-events: none;
        }

        .settings-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            z-index: 1;
        }

        .settings-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-light);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .close-btn {
            width: 44px;
            height: 44px;
            border: none;
            border-radius: 50%;
            background: var(--warning-gradient);
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 8px rgba(250, 112, 154, 0.3);
        }

        .close-btn:hover {
            transform: scale(1.1) rotate(90deg);
            box-shadow: 0 6px 12px rgba(250, 112, 154, 0.4);
        }

        .cookie-category {
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            backdrop-filter: blur(10px);
            position: relative;
            z-index: 1;
        }

        .category-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .category-title {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-light);
        }

        .category-description {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Gradient Toggle Switch */
        .gradient-toggle {
            position: relative;
            width: 64px;
            height: 32px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .gradient-toggle.active {
            background: var(--success-gradient);
            box-shadow: 0 4px 8px rgba(67, 233, 123, 0.3);
        }

        .gradient-toggle::before {
            content: '';
            position: absolute;
            top: 2px;
            left: 2px;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
            border-radius: 50%;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .gradient-toggle.active::before {
            transform: translateX(32px);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
        }

        .settings-actions {
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            z-index: 1;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .gradient-cookie-banner {
                bottom: 1rem;
                left: 1rem;
                right: 1rem;
                padding: 1.5rem;
            }

            .cookie-container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                text-align: center;
            }

            .cookie-actions {
                justify-content: center;
            }

            .gradient-btn {
                flex: 1;
                min-width: auto;
            }

            .settings-content {
                padding: 2rem;
                margin: 1rem;
            }

            .demo-content h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .cookie-actions {
                flex-direction: column;
            }

            .gradient-btn {
                width: 100%;
            }

            .cookie-container {
                grid-template-columns: 1fr;
            }
        }

        /* Demo Button */
        .demo-btn {
            padding: 1rem 2rem;
            border: none;
            border-radius: 12px;
            background: var(--primary-gradient);
            color: var(--text-light);
            font-family: inherit;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .demo-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
        }

        /* Floating Particles */
        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 50%;
            animation: float 6s infinite linear;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }
    </style>
</head>
<body>
    <div class="demo-content">
        <h1>Dynamic Gradient Banner</h1>
        <p>Experience the beauty of dynamic gradients with smooth animations and modern interactions</p>
        <button class="demo-btn" onclick="showCookieBanner()">Show Cookie Banner</button>
    </div>

    <!-- Cookie Banner -->
    <div id="gradientCookieBanner" class="gradient-cookie-banner">
        <div class="cookie-container">
            <div class="cookie-icon">🍪</div>
            <div class="cookie-content">
                <div class="cookie-title">Cookie Preferences</div>
                <div class="cookie-description">
                    We use cookies to enhance your browsing experience and provide personalized content. 
                    <a href="#" class="cookie-link">Privacy Policy</a> | 
                    <a href="#" class="cookie-link">Cookie Policy</a>
                </div>
            </div>
            <div class="cookie-actions">
                <button class="gradient-btn btn-accept" onclick="acceptCookies()">Accept All</button>
                <button class="gradient-btn btn-decline" onclick="declineCookies()">Decline</button>
                <button class="gradient-btn btn-settings" onclick="openSettings()">Customize</button>
            </div>
        </div>
    </div>

    <!-- Settings Modal -->
    <div id="cookieSettingsModal" class="cookie-settings-modal">
        <div class="settings-content">
            <div class="settings-header">
                <h3 class="settings-title">Cookie Settings</h3>
                <button class="close-btn" onclick="closeSettings()">&times;</button>
            </div>
            
            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Essential Cookies</span>
                    <div class="gradient-toggle active" data-category="essential">
                    </div>
                </div>
                <div class="category-description">
                    These cookies are necessary for the website to function and cannot be switched off. They are usually only set in response to actions made by you.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Analytics Cookies</span>
                    <div class="gradient-toggle" data-category="analytics">
                    </div>
                </div>
                <div class="category-description">
                    These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Marketing Cookies</span>
                    <div class="gradient-toggle" data-category="marketing">
                    </div>
                </div>
                <div class="category-description">
                    These cookies are used to deliver advertisements more relevant to you and your interests based on your browsing behavior.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Functional Cookies</span>
                    <div class="gradient-toggle" data-category="functional">
                    </div>
                </div>
                <div class="category-description">
                    These cookies enable enhanced functionality and personalization, such as remembering your preferences and settings.
                </div>
            </div>

            <div class="settings-actions">
                <button class="gradient-btn btn-decline" onclick="saveSettings(false)">Save Preferences</button>
                <button class="gradient-btn btn-accept" onclick="saveSettings(true)">Accept All</button>
            </div>
        </div>
    </div>

    <script>
        class DynamicGradientCookieBanner {
            constructor(options = {}) {
                this.options = {
                    autoShow: true,
                    showDelay: 1000,
                    storageKey: 'gradient_cookie_consent',
                    expiryDays: 365,
                    enableParticles: true,
                    particleCount: 20,
                    onAccept: null,
                    onDecline: null,
                    onSettingsSave: null,
                    ...options
                };

                this.banner = document.getElementById('gradientCookieBanner');
                this.modal = document.getElementById('cookieSettingsModal');
                this.consent = this.getStoredConsent();

                this.init();
            }

            init() {
                if (this.options.autoShow && !this.consent) {
                    setTimeout(() => this.show(), this.options.showDelay);
                }

                this.setupEventListeners();
                this.loadSettings();
                
                if (this.options.enableParticles) {
                    this.createParticles();
                }
            }

            setupEventListeners() {
                // Toggle switches
                document.querySelectorAll('.gradient-toggle').forEach(toggle => {
                    toggle.addEventListener('click', () => {
                        if (toggle.dataset.category !== 'essential') {
                            toggle.classList.toggle('active');
                            this.animateToggle(toggle);
                        }
                    });
                });

                // Modal backdrop click
                this.modal.addEventListener('click', (e) => {
                    if (e.target === this.modal) {
                        this.closeSettings();
                    }
                });

                // Keyboard navigation
                document.addEventListener('keydown', (e) => {
                    if (e.key === 'Escape') {
                        this.closeSettings();
                    }
                });

                // Button hover effects
                document.querySelectorAll('.gradient-btn').forEach(btn => {
                    btn.addEventListener('mouseenter', () => {
                        this.createRipple(btn);
                    });
                });
            }

            animateToggle(toggle) {
                toggle.style.transform = 'scale(0.95)';
                setTimeout(() => {
                    toggle.style.transform = 'scale(1)';
                }, 150);
            }

            createRipple(button) {
                const ripple = document.createElement('span');
                const rect = button.getBoundingClientRect();
                const size = Math.max(rect.width, rect.height);
                
                ripple.style.width = ripple.style.height = size + 'px';
                ripple.style.left = '50%';
                ripple.style.top = '50%';
                ripple.style.transform = 'translate(-50%, -50%) scale(0)';
                ripple.style.position = 'absolute';
                ripple.style.borderRadius = '50%';
                ripple.style.background = 'rgba(255, 255, 255, 0.3)';
                ripple.style.pointerEvents = 'none';
                ripple.style.animation = 'ripple 0.6s ease-out';
                
                button.style.position = 'relative';
                button.style.overflow = 'hidden';
                button.appendChild(ripple);
                
                setTimeout(() => {
                    ripple.remove();
                }, 600);
            }

            createParticles() {
                for (let i = 0; i < this.options.particleCount; i++) {
                    setTimeout(() => {
                        this.createParticle();
                    }, i * 300);
                }
                
                setInterval(() => {
                    this.createParticle();
                }, 2000);
            }

            createParticle() {
                const particle = document.createElement('div');
                particle.className = 'particle';
                particle.style.left = Math.random() * 100 + '%';
                particle.style.animationDelay = Math.random() * 2 + 's';
                particle.style.animationDuration = (Math.random() * 3 + 3) + 's';
                
                document.body.appendChild(particle);
                
                setTimeout(() => {
                    particle.remove();
                }, 6000);
            }

            show() {
                this.banner.classList.add('show');
                this.animateEntrance();
            }

            hide() {
                this.banner.classList.remove('show');
            }

            animateEntrance() {
                const elements = this.banner.querySelectorAll('.cookie-icon, .cookie-content, .cookie-actions');
                elements.forEach((el, index) => {
                    el.style.opacity = '0';
                    el.style.transform = 'translateY(20px)';
                    
                    setTimeout(() => {
                        el.style.transition = 'all 0.6s cubic-bezier(0.4, 0, 0.2, 1)';
                        el.style.opacity = '1';
                        el.style.transform = 'translateY(0)';
                    }, index * 150);
                });
            }

            accept() {
                const consent = {
                    essential: true,
                    analytics: true,
                    marketing: true,
                    functional: true,
                    timestamp: Date.now()
                };

                this.saveConsent(consent);
                this.hide();

                if (this.options.onAccept) {
                    this.options.onAccept(consent);
                }
            }

            decline() {
                const consent = {
                    essential: true,
                    analytics: false,
                    marketing: false,
                    functional: false,
                    timestamp: Date.now()
                };

                this.saveConsent(consent);
                this.hide();

                if (this.options.onDecline) {
                    this.options.onDecline(consent);
                }
            }

            openSettings() {
                this.modal.classList.add('show');
                document.body.style.overflow = 'hidden';
                this.animateModalEntrance();
            }

            closeSettings() {
                this.modal.classList.remove('show');
                document.body.style.overflow = '';
            }

            animateModalEntrance() {
                const categories = this.modal.querySelectorAll('.cookie-category');
                categories.forEach((category, index) => {
                    category.style.opacity = '0';
                    category.style.transform = 'translateX(-20px)';
                    
                    setTimeout(() => {
                        category.style.transition = 'all 0.4s cubic-bezier(0.4, 0, 0.2, 1)';
                        category.style.opacity = '1';
                        category.style.transform = 'translateX(0)';
                    }, index * 100);
                });
            }

            saveSettings(acceptAll = false) {
                const toggles = document.querySelectorAll('.gradient-toggle');
                const consent = { timestamp: Date.now() };

                toggles.forEach(toggle => {
                    const category = toggle.dataset.category;
                    if (acceptAll) {
                        consent[category] = true;
                        toggle.classList.add('active');
                    } else {
                        consent[category] = toggle.classList.contains('active');
                    }
                });

                this.saveConsent(consent);
                this.closeSettings();
                this.hide();

                if (this.options.onSettingsSave) {
                    this.options.onSettingsSave(consent);
                }
            }

            loadSettings() {
                if (this.consent) {
                    document.querySelectorAll('.gradient-toggle').forEach(toggle => {
                        const category = toggle.dataset.category;
                        if (this.consent[category]) {
                            toggle.classList.add('active');
                        } else {
                            toggle.classList.remove('active');
                        }
                    });
                }
            }

            saveConsent(consent) {
                const expiryDate = new Date();
                expiryDate.setDate(expiryDate.getDate() + this.options.expiryDays);
                
                const consentData = {
                    ...consent,
                    expiry: expiryDate.getTime()
                };

                localStorage.setItem(this.options.storageKey, JSON.stringify(consentData));
                this.consent = consent;
            }

            getStoredConsent() {
                try {
                    const stored = localStorage.getItem(this.options.storageKey);
                    if (stored) {
                        const data = JSON.parse(stored);
                        if (data.expiry && Date.now() < data.expiry) {
                            return data;
                        } else {
                            localStorage.removeItem(this.options.storageKey);
                        }
                    }
                } catch (e) {
                    console.error('Error reading cookie consent:', e);
                }
                return null;
            }

            reset() {
                localStorage.removeItem(this.options.storageKey);
                this.consent = null;
                this.show();
            }

            getConsent() {
                return this.consent;
            }

            updateGradient(gradient) {
                const root = document.documentElement;
                root.style.setProperty('--primary-gradient', gradient);
            }

            setParticles(enabled) {
                this.options.enableParticles = enabled;
                if (enabled) {
                    this.createParticles();
                } else {
                    document.querySelectorAll('.particle').forEach(p => p.remove());
                }
            }
        }

        // Add ripple animation CSS
        const style = document.createElement('style');
        style.textContent = `
            @keyframes ripple {
                to {
                    transform: translate(-50%, -50%) scale(2);
                    opacity: 0;
                }
            }
        `;
        document.head.appendChild(style);

        // Initialize the banner
        const cookieBanner = new DynamicGradientCookieBanner({
            onAccept: (consent) => {
                console.log('Cookies accepted:', consent);
                // Initialize analytics, marketing scripts, etc.
            },
            onDecline: (consent) => {
                console.log('Cookies declined:', consent);
                // Load only essential scripts
            },
            onSettingsSave: (consent) => {
                console.log('Settings saved:', consent);
                // Load scripts based on user preferences
            }
        });

        // Global functions for demo
        function showCookieBanner() {
            cookieBanner.reset();
        }

        function acceptCookies() {
            cookieBanner.accept();
        }

        function declineCookies() {
            cookieBanner.decline();
        }

        function openSettings() {
            cookieBanner.openSettings();
        }

        function closeSettings() {
            cookieBanner.closeSettings();
        }

        function saveSettings(acceptAll) {
            cookieBanner.saveSettings(acceptAll);
        }
    </script>
</body>
</html>

Usage

Basic Implementation

// Initialize with default settings
const cookieBanner = new DynamicGradientCookieBanner();

// Initialize with custom options
const cookieBanner = new DynamicGradientCookieBanner({
    autoShow: true,
    showDelay: 2000,
    storageKey: 'my_cookie_consent',
    expiryDays: 180,
    enableParticles: true,
    particleCount: 30,
    onAccept: (consent) => {
        console.log('User accepted cookies:', consent);
        // Load analytics scripts
        if (consent.analytics) {
            loadGoogleAnalytics();
        }
        // Load marketing scripts
        if (consent.marketing) {
            loadMarketingPixels();
        }
    },
    onDecline: (consent) => {
        console.log('User declined cookies:', consent);
        // Load only essential functionality
    },
    onSettingsSave: (consent) => {
        console.log('User saved custom settings:', consent);
        // Load scripts based on specific preferences
    }
});

Advanced Configuration

// Advanced styling and behavior
const advancedBanner = new DynamicGradientCookieBanner({
    autoShow: false, // Manual control
    showDelay: 0,
    storageKey: 'advanced_consent',
    expiryDays: 90,
    enableParticles: true,
    particleCount: 50,
    
    // Custom callbacks
    onAccept: (consent) => {
        // Advanced analytics setup
        initializeAdvancedTracking(consent);
    },
    
    onDecline: (consent) => {
        // Minimal tracking setup
        initializeEssentialOnly();
    },
    
    onSettingsSave: (consent) => {
        // Granular script loading
        loadScriptsBasedOnConsent(consent);
    }
});

// Custom gradient themes
function setCustomGradient(gradient) {
    advancedBanner.updateGradient(gradient);
}

// Particle control
function toggleParticles(enabled) {
    advancedBanner.setParticles(enabled);
}

// Manual control
function showConsentBanner() {
    advancedBanner.show();
}

// Check current consent status
function checkConsentStatus() {
    const consent = advancedBanner.getConsent();
    if (consent) {
        console.log('Current consent:', consent);
    } else {
        console.log('No consent given yet');
    }
}

API Methods

Core Methods

  • show() - Display the cookie banner
  • hide() - Hide the cookie banner
  • accept() - Accept all cookies and hide banner
  • decline() - Decline optional cookies and hide banner
  • reset() - Clear stored consent and show banner again

Settings Management

  • openSettings() - Open the settings modal
  • closeSettings() - Close the settings modal
  • saveSettings(acceptAll) - Save current settings
  • loadSettings() - Load and apply stored settings

Data Management

  • getConsent() - Get current consent object
  • saveConsent(consent) - Save consent to storage
  • getStoredConsent() - Retrieve consent from storage

Visual Customization

  • updateGradient(gradient) - Change the primary gradient
  • setParticles(enabled) - Enable/disable floating particles
  • animateEntrance() - Trigger entrance animations
  • createRipple(button) - Create button ripple effects

Customization Options

Visual Customization

  • Gradient Schemes: Modify CSS custom properties for different color themes
  • Animation Speed: Adjust transition durations and animation timings
  • Particle Effects: Control particle count, speed, and appearance
  • Typography: Change font families, sizes, and weights

Functional Configuration

  • Auto Display: Control automatic banner appearance
  • Storage Duration: Set cookie consent expiration period
  • Delay Settings: Configure show/hide timing
  • Callback Functions: Custom handlers for user actions

Accessibility Features

  • Keyboard Navigation: Full keyboard support with focus indicators
  • Screen Reader Support: Proper ARIA labels and descriptions
  • High Contrast: Enhanced visibility for accessibility
  • Focus Management: Proper focus trapping in modal

Browser Compatibility

  • Chrome 60+
  • Firefox 55+
  • Safari 12+
  • Edge 79+
  • Mobile browsers (iOS Safari 12+, Chrome Mobile 60+)

License

MIT License - free to use in personal and commercial projects.

HTML

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CSS

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JavaScript

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                <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Dynamic Gradient Cookie Banner</title>
    <style>
        :root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
            --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
            --text-light: #ffffff;
            --text-dark: #2d3748;
            --text-muted: rgba(255, 255, 255, 0.8);
            --backdrop: rgba(0, 0, 0, 0.3);
            --border-radius: 16px;
            --shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
            min-height: 100vh;
            color: var(--text-light);
            line-height: 1.6;
        }

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

        .demo-content {
            padding: 3rem 2rem;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .demo-content h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        .demo-content p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Dynamic Gradient Cookie Banner */
        .gradient-cookie-banner {
            position: fixed;
            bottom: 2rem;
            left: 2rem;
            right: 2rem;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            transform: translateY(120%);
            transition: var(--transition);
            z-index: 10000;
            max-width: 1200px;
            margin: 0 auto;
            overflow: hidden;
            position: relative;
        }

        .gradient-cookie-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        .gradient-cookie-banner.show {
            transform: translateY(0);
        }

        .cookie-container {
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 2rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cookie-icon {
            width: 60px;
            height: 60px;
            background: var(--accent-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .cookie-content {
            flex: 1;
        }

        .cookie-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-light);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cookie-description {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.6;
        }

        .cookie-link {
            color: #4facfe;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            position: relative;
        }

        .cookie-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gradient);
            transition: width 0.3s ease;
        }

        .cookie-link:hover::after {
            width: 100%;
        }

        .cookie-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* Gradient Buttons */
        .gradient-btn {
            padding: 0.875rem 1.75rem;
            border: none;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            min-width: 130px;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .gradient-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }

        .gradient-btn:hover::before {
            transform: translateX(100%);
        }

        .btn-accept {
            background: var(--success-gradient);
            box-shadow: 0 8px 16px rgba(67, 233, 123, 0.3);
        }

        .btn-accept:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(67, 233, 123, 0.4);
        }

        .btn-decline {
            background: var(--warning-gradient);
            box-shadow: 0 8px 16px rgba(250, 112, 154, 0.3);
        }

        .btn-decline:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(250, 112, 154, 0.4);
        }

        .btn-settings {
            background: var(--accent-gradient);
            box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
        }

        .btn-settings:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(79, 172, 254, 0.4);
        }

        .gradient-btn:active {
            transform: translateY(-1px);
        }

        /* Settings Modal */
        .cookie-settings-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--backdrop);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10001;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .cookie-settings-modal.show {
            opacity: 1;
            visibility: visible;
        }

        .settings-content {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            max-width: 600px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
            transform: scale(0.9) translateY(20px);
            transition: var(--transition);
            position: relative;
        }

        .cookie-settings-modal.show .settings-content {
            transform: scale(1) translateY(0);
        }

        .settings-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
            border-radius: var(--border-radius);
            pointer-events: none;
        }

        .settings-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            z-index: 1;
        }

        .settings-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-light);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .close-btn {
            width: 44px;
            height: 44px;
            border: none;
            border-radius: 50%;
            background: var(--warning-gradient);
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 8px rgba(250, 112, 154, 0.3);
        }

        .close-btn:hover {
            transform: scale(1.1) rotate(90deg);
            box-shadow: 0 6px 12px rgba(250, 112, 154, 0.4);
        }

        .cookie-category {
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            backdrop-filter: blur(10px);
            position: relative;
            z-index: 1;
        }

        .category-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .category-title {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-light);
        }

        .category-description {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Gradient Toggle Switch */
        .gradient-toggle {
            position: relative;
            width: 64px;
            height: 32px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .gradient-toggle.active {
            background: var(--success-gradient);
            box-shadow: 0 4px 8px rgba(67, 233, 123, 0.3);
        }

        .gradient-toggle::before {
            content: '';
            position: absolute;
            top: 2px;
            left: 2px;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
            border-radius: 50%;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .gradient-toggle.active::before {
            transform: translateX(32px);
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
        }

        .settings-actions {
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            z-index: 1;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .gradient-cookie-banner {
                bottom: 1rem;
                left: 1rem;
                right: 1rem;
                padding: 1.5rem;
            }

            .cookie-container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                text-align: center;
            }

            .cookie-actions {
                justify-content: center;
            }

            .gradient-btn {
                flex: 1;
                min-width: auto;
            }

            .settings-content {
                padding: 2rem;
                margin: 1rem;
            }

            .demo-content h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .cookie-actions {
                flex-direction: column;
            }

            .gradient-btn {
                width: 100%;
            }

            .cookie-container {
                grid-template-columns: 1fr;
            }
        }

        /* Demo Button */
        .demo-btn {
            padding: 1rem 2rem;
            border: none;
            border-radius: 12px;
            background: var(--primary-gradient);
            color: var(--text-light);
            font-family: inherit;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .demo-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
        }

        /* Floating Particles */
        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 50%;
            animation: float 6s infinite linear;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }
    </style>
</head>
<body>
    <div class="demo-content">
        <h1>Dynamic Gradient Banner</h1>
        <p>Experience the beauty of dynamic gradients with smooth animations and modern interactions</p>
        <button class="demo-btn" onclick="showCookieBanner()">Show Cookie Banner</button>
    </div>

    <!-- Cookie Banner -->
    <div id="gradientCookieBanner" class="gradient-cookie-banner">
        <div class="cookie-container">
            <div class="cookie-icon">🍪</div>
            <div class="cookie-content">
                <div class="cookie-title">Cookie Preferences</div>
                <div class="cookie-description">
                    We use cookies to enhance your browsing experience and provide personalized content. 
                    <a href="#" class="cookie-link">Privacy Policy</a> | 
                    <a href="#" class="cookie-link">Cookie Policy</a>
                </div>
            </div>
            <div class="cookie-actions">
                <button class="gradient-btn btn-accept" onclick="acceptCookies()">Accept All</button>
                <button class="gradient-btn btn-decline" onclick="declineCookies()">Decline</button>
                <button class="gradient-btn btn-settings" onclick="openSettings()">Customize</button>
            </div>
        </div>
    </div>

    <!-- Settings Modal -->
    <div id="cookieSettingsModal" class="cookie-settings-modal">
        <div class="settings-content">
            <div class="settings-header">
                <h3 class="settings-title">Cookie Settings</h3>
                <button class="close-btn" onclick="closeSettings()">&times;</button>
            </div>
            
            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Essential Cookies</span>
                    <div class="gradient-toggle active" data-category="essential">
                    </div>
                </div>
                <div class="category-description">
                    These cookies are necessary for the website to function and cannot be switched off. They are usually only set in response to actions made by you.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Analytics Cookies</span>
                    <div class="gradient-toggle" data-category="analytics">
                    </div>
                </div>
                <div class="category-description">
                    These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Marketing Cookies</span>
                    <div class="gradient-toggle" data-category="marketing">
                    </div>
                </div>
                <div class="category-description">
                    These cookies are used to deliver advertisements more relevant to you and your interests based on your browsing behavior.
                </div>
            </div>

            <div class="cookie-category">
                <div class="category-header">
                    <span class="category-title">Functional Cookies</span>
                    <div class="gradient-toggle" data-category="functional">
                    </div>
                </div>
                <div class="category-description">
                    These cookies enable enhanced functionality and personalization, such as remembering your preferences and settings.
                </div>
            </div>

            <div class="settings-actions">
                <button class="gradient-btn btn-decline" onclick="saveSettings(false)">Save Preferences</button>
                <button class="gradient-btn btn-accept" onclick="saveSettings(true)">Accept All</button>
            </div>
        </div>
    </div>

    <script>
        class DynamicGradientCookieBanner {
            constructor(options = {}) {
                this.options = {
                    autoShow: true,
                    showDelay: 1000,
                    storageKey: 'gradient_cookie_consent',
                    expiryDays: 365,
                    enableParticles: true,
                    particleCount: 20,
                    onAccept: null,
                    onDecline: null,
                    onSettingsSave: null,
                    ...options
                };

                this.banner = document.getElementById('gradientCookieBanner');
                this.modal = document.getElementById('cookieSettingsModal');
                this.consent = this.getStoredConsent();

                this.init();
            }

            init() {
                if (this.options.autoShow && !this.consent) {
                    setTimeout(() => this.show(), this.options.showDelay);
                }

                this.setupEventListeners();
                this.loadSettings();
                
                if (this.options.enableParticles) {
                    this.createParticles();
                }
            }

            setupEventListeners() {
                // Toggle switches
                document.querySelectorAll('.gradient-toggle').forEach(toggle => {
                    toggle.addEventListener('click', () => {
                        if (toggle.dataset.category !== 'essential') {
                            toggle.classList.toggle('active');
                            this.animateToggle(toggle);
                        }
                    });
                });

                // Modal backdrop click
                this.modal.addEventListener('click', (e) => {
                    if (e.target === this.modal) {
                        this.closeSettings();
                    }
                });

                // Keyboard navigation
                document.addEventListener('keydown', (e) => {
                    if (e.key === 'Escape') {
                        this.closeSettings();
                    }
                });

                // Button hover effects
                document.querySelectorAll('.gradient-btn').forEach(btn => {
                    btn.addEventListener('mouseenter', () => {
                        this.createRipple(btn);
                    });
                });
            }

            animateToggle(toggle) {
                toggle.style.transform = 'scale(0.95)';
                setTimeout(() => {
                    toggle.style.transform = 'scale(1)';
                }, 150);
            }

            createRipple(button) {
                const ripple = document.createElement('span');
                const rect = button.getBoundingClientRect();
                const size = Math.max(rect.width, rect.height);
                
                ripple.style.width = ripple.style.height = size + 'px';
                ripple.style.left = '50%';
                ripple.style.top = '50%';
                ripple.style.transform = 'translate(-50%, -50%) scale(0)';
                ripple.style.position = 'absolute';
                ripple.style.borderRadius = '50%';
                ripple.style.background = 'rgba(255, 255, 255, 0.3)';
                ripple.style.pointerEvents = 'none';
                ripple.style.animation = 'ripple 0.6s ease-out';
                
                button.style.position = 'relative';
                button.style.overflow = 'hidden';
                button.appendChild(ripple);
                
                setTimeout(() => {
                    ripple.remove();
                }, 600);
            }

            createParticles() {
                for (let i = 0; i < this.options.particleCount; i++) {
                    setTimeout(() => {
                        this.createParticle();
                    }, i * 300);
                }
                
                setInterval(() => {
                    this.createParticle();
                }, 2000);
            }

            createParticle() {
                const particle = document.createElement('div');
                particle.className = 'particle';
                particle.style.left = Math.random() * 100 + '%';
                particle.style.animationDelay = Math.random() * 2 + 's';
                particle.style.animationDuration = (Math.random() * 3 + 3) + 's';
                
                document.body.appendChild(particle);
                
                setTimeout(() => {
                    particle.remove();
                }, 6000);
            }

            show() {
                this.banner.classList.add('show');
                this.animateEntrance();
            }

            hide() {
                this.banner.classList.remove('show');
            }

            animateEntrance() {
                const elements = this.banner.querySelectorAll('.cookie-icon, .cookie-content, .cookie-actions');
                elements.forEach((el, index) => {
                    el.style.opacity = '0';
                    el.style.transform = 'translateY(20px)';
                    
                    setTimeout(() => {
                        el.style.transition = 'all 0.6s cubic-bezier(0.4, 0, 0.2, 1)';
                        el.style.opacity = '1';
                        el.style.transform = 'translateY(0)';
                    }, index * 150);
                });
            }

            accept() {
                const consent = {
                    essential: true,
                    analytics: true,
                    marketing: true,
                    functional: true,
                    timestamp: Date.now()
                };

                this.saveConsent(consent);
                this.hide();

                if (this.options.onAccept) {
                    this.options.onAccept(consent);
                }
            }

            decline() {
                const consent = {
                    essential: true,
                    analytics: false,
                    marketing: false,
                    functional: false,
                    timestamp: Date.now()
                };

                this.saveConsent(consent);
                this.hide();

                if (this.options.onDecline) {
                    this.options.onDecline(consent);
                }
            }

            openSettings() {
                this.modal.classList.add('show');
                document.body.style.overflow = 'hidden';
                this.animateModalEntrance();
            }

            closeSettings() {
                this.modal.classList.remove('show');
                document.body.style.overflow = '';
            }

            animateModalEntrance() {
                const categories = this.modal.querySelectorAll('.cookie-category');
                categories.forEach((category, index) => {
                    category.style.opacity = '0';
                    category.style.transform = 'translateX(-20px)';
                    
                    setTimeout(() => {
                        category.style.transition = 'all 0.4s cubic-bezier(0.4, 0, 0.2, 1)';
                        category.style.opacity = '1';
                        category.style.transform = 'translateX(0)';
                    }, index * 100);
                });
            }

            saveSettings(acceptAll = false) {
                const toggles = document.querySelectorAll('.gradient-toggle');
                const consent = { timestamp: Date.now() };

                toggles.forEach(toggle => {
                    const category = toggle.dataset.category;
                    if (acceptAll) {
                        consent[category] = true;
                        toggle.classList.add('active');
                    } else {
                        consent[category] = toggle.classList.contains('active');
                    }
                });

                this.saveConsent(consent);
                this.closeSettings();
                this.hide();

                if (this.options.onSettingsSave) {
                    this.options.onSettingsSave(consent);
                }
            }

            loadSettings() {
                if (this.consent) {
                    document.querySelectorAll('.gradient-toggle').forEach(toggle => {
                        const category = toggle.dataset.category;
                        if (this.consent[category]) {
                            toggle.classList.add('active');
                        } else {
                            toggle.classList.remove('active');
                        }
                    });
                }
            }

            saveConsent(consent) {
                const expiryDate = new Date();
                expiryDate.setDate(expiryDate.getDate() + this.options.expiryDays);
                
                const consentData = {
                    ...consent,
                    expiry: expiryDate.getTime()
                };

                localStorage.setItem(this.options.storageKey, JSON.stringify(consentData));
                this.consent = consent;
            }

            getStoredConsent() {
                try {
                    const stored = localStorage.getItem(this.options.storageKey);
                    if (stored) {
                        const data = JSON.parse(stored);
                        if (data.expiry && Date.now() < data.expiry) {
                            return data;
                        } else {
                            localStorage.removeItem(this.options.storageKey);
                        }
                    }
                } catch (e) {
                    console.error('Error reading cookie consent:', e);
                }
                return null;
            }

            reset() {
                localStorage.removeItem(this.options.storageKey);
                this.consent = null;
                this.show();
            }

            getConsent() {
                return this.consent;
            }

            updateGradient(gradient) {
                const root = document.documentElement;
                root.style.setProperty('--primary-gradient', gradient);
            }

            setParticles(enabled) {
                this.options.enableParticles = enabled;
                if (enabled) {
                    this.createParticles();
                } else {
                    document.querySelectorAll('.particle').forEach(p => p.remove());
                }
            }
        }

        // Add ripple animation CSS
        const style = document.createElement('style');
        style.textContent = `
            @keyframes ripple {
                to {
                    transform: translate(-50%, -50%) scale(2);
                    opacity: 0;
                }
            }
        `;
        document.head.appendChild(style);

        // Initialize the banner
        const cookieBanner = new DynamicGradientCookieBanner({
            onAccept: (consent) => {
                console.log('Cookies accepted:', consent);
                // Initialize analytics, marketing scripts, etc.
            },
            onDecline: (consent) => {
                console.log('Cookies declined:', consent);
                // Load only essential scripts
            },
            onSettingsSave: (consent) => {
                console.log('Settings saved:', consent);
                // Load scripts based on user preferences
            }
        });

        // Global functions for demo
        function showCookieBanner() {
            cookieBanner.reset();
        }

        function acceptCookies() {
            cookieBanner.accept();
        }

        function declineCookies() {
            cookieBanner.decline();
        }

        function openSettings() {
            cookieBanner.openSettings();
        }

        function closeSettings() {
            cookieBanner.closeSettings();
        }

        function saveSettings(acceptAll) {
            cookieBanner.saveSettings(acceptAll);
        }
    </script>
</body>
</html>
965lines
31591characters
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