/* 
 * EcoWaste Solutions Website Styles
 * 
 * Table of Contents:
 * 1. Base Styles
 * 2. Typography
 * 3. Layout & Containers
 * 4. Header & Navigation
 * 5. Hero Section
 * 6. Content Sections
 * 7. Buttons & Forms
 * 8. Cards & Features
 * 9. Testimonials
 * 10. Blog
 * 11. Footer
 * 12. Cookie Banner
 * 13. Legal Pages
 * 14. Animations & Effects
 * 15. Utility Classes
 * 16. Media Queries
 */

/* ======= 1. Base Styles ======= */
:root {
    /* Primary Colors */
    --primary-color: #2E8B57;     /* Sea Green */
    --primary-dark: #1e5e3a;      /* Darker Green */
    --primary-light: #3CB371;     /* Medium Sea Green */
    --accent-color: #4CAF50;      /* Green */
    
    /* Neutral Colors */
    --text-color: #333333;
    --text-light: #666666;
    --text-dark: #111111;
    --bg-color: #FFFFFF;
    --bg-light: #F9F9F9;
    --bg-green-light: #E8F5E9;
    
    /* UI Colors */
    --success-color: #4CAF50;
    --warning-color: #FFC107;
    --error-color: #F44336;
    --info-color: #2196F3;
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--body-font);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
}

img, svg {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style-position: inside;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* ======= 2. Typography ======= */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    position: relative;
    margin-bottom: var(--spacing-lg);
}

h2:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header h2 {
    text-align: center;
}

.section-header h2:after {
    left: 50%;
    transform: translateX(-50%);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-light);
}

/* ======= 3. Layout & Containers ======= */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

/* ======= 4. Header & Navigation ======= */
header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: block;
}

nav {
    display: flex;
    align-items: center;
}

.desktop-menu {
    display: flex;
    list-style: none;
    margin-bottom: 0;
}

.desktop-menu li {
    margin-left: var(--spacing-lg);
}

.desktop-menu a {
    color: var(--text-color);
    font-weight: 600;
    position: relative;
}

.desktop-menu a:hover,
.desktop-menu a.active {
    color: var(--primary-color);
}

.desktop-menu a.active:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

.mobile-menu {
    display: none;
    background-color: var(--bg-color);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.mobile-menu ul {
    list-style: none;
    margin-bottom: 0;
}

.mobile-menu li {
    margin-bottom: var(--spacing-md);
}

.mobile-menu a {
    color: var(--text-color);
    font-weight: 600;
    display: block;
    padding: var(--spacing-sm) 0;
}

.mobile-menu a:hover {
    color: var(--primary-color);
}

/* Mobile menu open state */
.menu-open .mobile-menu-toggle span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-open .mobile-menu-toggle span:nth-child(2) {
    opacity: 0;
}

.menu-open .mobile-menu-toggle span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.menu-open .mobile-menu {
    display: block;
}

/* ======= 5. Hero Section ======= */
.hero {
    background-color: var(--bg-green-light);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: var(--spacing-lg);
}

.hero-image {
    flex: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
}

/* ======= 6. Content Sections ======= */
.services {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.about {
    background-color: var(--bg-color);
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
}

.about-features {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.about-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.about-features i {
    color: var(--success-color);
    margin-right: var(--spacing-sm);
}

.stats {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
}

.process {
    background-color: var(--bg-light);
}

.process-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step-icon {
    margin-bottom: var(--spacing-md);
}

.testimonials {
    background-color: var(--bg-color);
    position: relative;
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-slide {
    display: none;
    animation: fadeEffect var(--transition-normal);
}

.testimonial-slide.active {
    display: block;
}

@keyframes fadeEffect {
    from { opacity: 0; }
    to { opacity: 1; }
}

.testimonial-content {
    background-color: var(--bg-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.testimonial-quote {
    position: relative;
    padding: 0 var(--spacing-lg);
}

.testimonial-quote i.fa-quote-left {
    position: absolute;
    top: 0;
    left: 0;
    color: var(--primary-light);
    font-size: 1.5rem;
}

.testimonial-quote i.fa-quote-right {
    position: absolute;
    bottom: 0;
    right: 0;
    color: var(--primary-light);
    font-size: 1.5rem;
}

.testimonial-author {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.author-name {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.author-position {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.testimonial-prev,
.testimonial-next {
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.testimonial-dots {
    display: flex;
    margin: 0 var(--spacing-md);
}

.dot {
    width: 10px;
    height: 10px;
    background-color: var(--text-light);
    border-radius: 50%;
    margin: 0 var(--spacing-xs);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dot.active {
    background-color: var(--primary-color);
}

.blog-preview {
    background-color: var(--bg-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.blog-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.newsletter {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xl) 0;
}

.newsletter-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
}

.newsletter-text {
    flex: 1;
}

.newsletter-form {
    flex: 1;
}

.newsletter-text h2 {
    color: white;
}

.newsletter-text h2:after {
    background-color: white;
}

.newsletter-text p {
    margin-bottom: 0;
}

.contact {
    background-color: var(--bg-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    align-items: flex-start;
}

.info-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.info-item h3 {
    margin-bottom: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--primary-dark);
}

/* ======= 7. Buttons & Forms ======= */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-family: var(--body-font);
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

input, 
textarea, 
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-family: var(--body-font);
    font-size: 1rem;
}

input:focus, 
textarea:focus, 
select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-check {
    display: flex;
    align-items: flex-start;
    margin-top: var(--spacing-md);
}

.form-check input {
    width: auto;
    margin-right: var(--spacing-sm);
    margin-top: 5px;
}

.newsletter-form .form-group {
    display: flex;
}

.newsletter-form input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
}

.newsletter-form button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.newsletter-form .form-check {
    margin-top: var(--spacing-sm);
}

.newsletter-form .form-check label,
.newsletter-form .form-check a {
    color: white;
}

.newsletter-form .form-check a {
    text-decoration: underline;
}

/* ======= 8. Cards & Features ======= */
.service-card {
    background-color: var(--bg-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    margin-bottom: var(--spacing-md);
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon svg {
    width: 80px;
    height: 80px;
}

.blog-card {
    background-color: var(--bg-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-image {
    height: 200px;
    overflow: hidden;
}

.blog-image svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-content {
    padding: var(--spacing-lg);
}

.blog-date {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.blog-excerpt {
    margin-bottom: var(--spacing-md);
}

.read-more {
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.read-more:after {
    content: '\f054';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-left: var(--spacing-xs);
    font-size: 0.8rem;
    transition: transform var(--transition-fast);
}

.read-more:hover:after {
    transform: translateX(3px);
}

/* ======= 9. Testimonials ======= */
/* Styles already defined in Content Sections */

/* ======= 10. Blog ======= */
.blog-header {
    text-align: center;
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xl) 0;
}

.blog-header h1 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.blog-header p {
    max-width: 700px;
    margin: 0 auto;
}

.blog-listing {
    padding: var(--spacing-xl) 0;
}

.blog-post {
    padding: var(--spacing-xl) 0;
}

.blog-post .blog-header {
    text-align: left;
    background-color: transparent;
    color: var(--text-color);
    padding: 0;
    margin-bottom: var(--spacing-lg);
}

.blog-post .blog-header h1 {
    color: var(--text-dark);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

.blog-meta span {
    display: flex;
    align-items: center;
}

.blog-meta i {
    margin-right: var(--spacing-xs);
}

.blog-featured-image {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.blog-intro {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.blog-content h2 {
    margin-top: var(--spacing-xl);
}

.blog-content h3 {
    margin-top: var(--spacing-lg);
}

.blog-content ul, .blog-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.blog-content li {
    margin-bottom: var(--spacing-xs);
}

.blog-cta {
    background-color: var(--bg-green-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.blog-cta h3 {
    margin-top: 0;
}

.blog-share {
    display: flex;
    align-items: center;
    margin: var(--spacing-xl) 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid #eee;
}

.blog-share p {
    margin-right: var(--spacing-md);
    margin-bottom: 0;
    font-weight: 600;
}

.blog-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid #eee;
}

.blog-nav-prev, .blog-nav-next {
    max-width: 45%;
}

.blog-navigation a {
    display: block;
}

.nav-label {
    display: block;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.nav-title {
    color: var(--text-color);
    font-size: 0.9rem;
}

.related-articles {
    background-color: var(--bg-light);
    padding: var(--spacing-xl) 0;
}

.thank-you {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.thank-you-content {
    max-width: 700px;
    margin: 0 auto;
}

.thank-you-icon {
    margin-bottom: var(--spacing-lg);
}

.thank-you-icon svg {
    width: 100px;
    height: 100px;
}

.next-steps {
    margin: var(--spacing-xl) 0;
    text-align: left;
}

.next-steps ul {
    list-style: none;
}

.next-steps li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.next-steps i {
    color: var(--success-color);
    margin-right: var(--spacing-sm);
}

.thank-you-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ======= 11. Footer ======= */
footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    color: white;
    position: relative;
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-column h3:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links {
    list-style: none;
    margin-bottom: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: #ccc;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

footer .social-links {
    margin-top: var(--spacing-md);
}

footer .social-links a {
    background-color: rgba(255, 255, 255, 0.1);
}

footer .social-links a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.copyright p {
    margin-bottom: 0;
    color: #ccc;
}

.legal-links {
    display: flex;
    gap: var(--spacing-md);
}

.legal-links a {
    color: #ccc;
}

.legal-links a:hover {
    color: white;
}

#cookie-settings-button {
    background: none;
    border: none;
    color: #ccc;
    cursor: pointer;
    font-family: var(--body-font);
    font-size: 0.9rem;
    padding: 0;
}

#cookie-settings-button:hover {
    color: white;
    text-decoration: underline;
}

/* ======= 12. Cookie Banner ======= */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: none;
}

.cookie-banner.visible {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.cookie-content h3 {
    margin-bottom: var(--spacing-sm);
}

.cookie-options {
    margin: var(--spacing-md) 0;
}

.cookie-option {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--bg-light);
    border-radius: var(--border-radius-sm);
}

.cookie-option input {
    width: auto;
    margin-right: var(--spacing-sm);
    margin-top: 5px;
}

.cookie-option label {
    font-weight: 600;
    margin-right: var(--spacing-md);
}

.cookie-option p {
    width: 100%;
    margin: var(--spacing-xs) 0 0 var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-light);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ======= 13. Legal Pages ======= */
.legal-content {
    padding: var(--spacing-xl) 0;
}

.last-updated {
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
    font-style: italic;
}

.legal-section {
    margin-bottom: var(--spacing-xl);
}

.legal-section h2 {
    font-size: 1.8rem;
}

.legal-section h3 {
    font-size: 1.3rem;
    margin-top: var(--spacing-lg);
}

.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

.cookie-table th, .cookie-table td {
    padding: var(--spacing-sm);
    border: 1px solid #ddd;
    text-align: left;
}

.cookie-table th {
    background-color: var(--bg-light);
    font-weight: 600;
}

.cookie-controls {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--border-radius-md);
    text-align: center;
}

.cookie-controls h2 {
    text-align: center;
}

.cookie-controls h2:after {
    left: 50%;
    transform: translateX(-50%);
}

/* ======= 14. Animations & Effects ======= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn var(--transition-normal);
}

.animate-slide-up {
    animation: slideUp var(--transition-normal);
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    border: none;
    z-index: 99;
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

#back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

/* ======= 15. Utility Classes ======= */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-1 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-2 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-3 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-4 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

/* ======= 16. Media Queries ======= */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        padding-right: 0;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .process-steps {
        flex-wrap: wrap;
    }
    
    .process-step {
        flex: 0 0 50%;
        margin-bottom: var(--spacing-lg);
    }
    
    .newsletter-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .desktop-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .process-step {
        flex: 0 0 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .legal-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .blog-navigation {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .blog-nav-prev, .blog-nav-next {
        max-width: 100%;
    }
    
    .cookie-buttons {
        flex-direction: column;
    }
    
    #back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: var(--border-radius-sm);
        border: 1px solid #ddd;
        margin-bottom: var(--spacing-sm);
    }
    
    .newsletter-form button {
        border-radius: var(--border-radius-sm);
    }
    
    .blog-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .thank-you-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}