/* Coca-Cola Website Styles */
/* Design System: Classic Heritage with Modern Energy */

:root {
    /* Coca-Cola Brand Colors */
    --coke-red: #F40009;
    --coke-red-dark: #C40007;
    --coke-red-light: #FF1A1A;
    --coke-black: #1E1E1E;
    --coke-white: #FFFFFF;
    --coke-cream: #F5F0EB;
    --coke-gray: #6B6B6B;
    --coke-gray-light: #E8E8E8;
    
    /* Typography */
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-red: 0 8px 40px rgba(244, 0, 9, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--coke-black);
    background: var(--coke-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
}

.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--coke-red);
    margin-bottom: var(--space-xs);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--coke-black);
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--coke-gray);
    max-width: 600px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-xs) 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-svg {
    width: 120px;
    height: 36px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 20px;
    fill: var(--coke-red);
    font-weight: 400;
}

.navbar.scrolled .logo-text {
    fill: var(--coke-red);
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--coke-white);
    position: relative;
    padding: 0.5rem 0;
}

.navbar.scrolled .nav-links a {
    color: var(--coke-black);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coke-red);
    transition: var(--transition-medium);
}

.nav-links a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--coke-white);
    transition: var(--transition-fast);
}

.navbar.scrolled .menu-toggle span {
    background: var(--coke-black);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--coke-red);
    color: var(--coke-white);
    box-shadow: var(--shadow-red);
}

.btn-primary:hover {
    background: var(--coke-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(244, 0, 9, 0.4);
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--coke-red) 0%, var(--coke-red-dark) 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: calc(var(--space-xl) + 80px) var(--space-md) var(--space-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-text {
    color: var(--coke-white);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1;
    margin-bottom: var(--space-md);
}

.title-line {
    display: block;
}

.title-line.accent {
    font-style: italic;
    position: relative;
}

.title-line.accent::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    width: 100%;
    height: 0.1em;
    background: var(--coke-white);
    opacity: 0.3;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--space-md);
    max-width: 500px;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bottle-container {
    position: relative;
    width: 200px;
    height: 400px;
}

.bottle-glow {
    position: absolute;
    inset: -50px;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
}

.bottle-silhouette {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.8) 100%);
    clip-path: polygon(
        35% 0%, 65% 0%, 70% 5%, 70% 15%, 65% 20%,
        75% 30%, 80% 50%, 80% 85%, 75% 95%, 70% 100%,
        30% 100%, 25% 95%, 20% 85%, 20% 50%, 25% 30%,
        35% 20%, 30% 15%, 30% 5%
    );
    box-shadow: 
        inset 10px 0 30px rgba(255, 255, 255, 0.5),
        inset -10px 0 30px rgba(200, 200, 200, 0.3),
        0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Floating Bubbles */
.floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.bubble {
    position: absolute;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.2));
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.bubble-1 {
    width: 20px;
    height: 20px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.bubble-2 {
    width: 15px;
    height: 15px;
    top: 60%;
    left: 5%;
    animation-delay: 1s;
}

.bubble-3 {
    width: 25px;
    height: 25px;
    top: 30%;
    right: 15%;
    animation-delay: 2s;
}

.bubble-4 {
    width: 12px;
    height: 12px;
    top: 70%;
    right: 25%;
    animation-delay: 3s;
}

.bubble-5 {
    width: 18px;
    height: 18px;
    top: 45%;
    right: 5%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-30px) scale(1.1);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Hero Wave */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    z-index: 1;
}

.hero-wave svg {
    width: 100%;
    height: 100%;
    fill: var(--coke-white);
}

/* Products Section */
.products {
    padding: var(--space-2xl) 0;
    background: var(--coke-white);
}

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

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

.section-header.centered .section-subtitle {
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.product-card {
    background: var(--coke-cream);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-medium);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-visual {
    width: 80px;
    height: 160px;
    border-radius: 40px;
    position: relative;
    transition: var(--transition-medium);
}

.product-card:hover .product-visual {
    transform: scale(1.05) rotate(5deg);
}

.classic-can {
    background: linear-gradient(180deg, var(--coke-red) 0%, var(--coke-red-dark) 100%);
    box-shadow: 
        inset 5px 0 15px rgba(255, 255, 255, 0.3),
        inset -5px 0 15px rgba(0, 0, 0, 0.2),
        0 10px 30px rgba(244, 0, 9, 0.3);
}

.classic-can::before {
    content: 'Coca-Cola';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    color: var(--coke-white);
    font-family: var(--font-display);
    font-size: 14px;
    white-space: nowrap;
}

.zero-can {
    background: linear-gradient(180deg, var(--coke-black) 0%, #000 100%);
    box-shadow: 
        inset 5px 0 15px rgba(255, 255, 255, 0.2),
        inset -5px 0 15px rgba(0, 0, 0, 0.3),
        0 10px 30px rgba(0, 0, 0, 0.3);
}

.zero-can::before {
    content: 'ZERO';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    color: var(--coke-white);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 2px;
    white-space: nowrap;
}

.diet-can {
    background: linear-gradient(180deg, #C0C0C0 0%, #808080 100%);
    box-shadow: 
        inset 5px 0 15px rgba(255, 255, 255, 0.4),
        inset -5px 0 15px rgba(0, 0, 0, 0.2),
        0 10px 30px rgba(0, 0, 0, 0.2);
}

.diet-can::before {
    content: 'DIET';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    color: var(--coke-red);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 2px;
    white-space: nowrap;
}

.cherry-can {
    background: linear-gradient(180deg, #8B0000 0%, #4A0000 100%);
    box-shadow: 
        inset 5px 0 15px rgba(255, 100, 100, 0.3),
        inset -5px 0 15px rgba(0, 0, 0, 0.3),
        0 10px 30px rgba(139, 0, 0, 0.3);
}

.cherry-can::before {
    content: 'CHERRY';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    color: var(--coke-white);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 1px;
    white-space: nowrap;
}

.product-info {
    padding: var(--space-md);
}

.product-name {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
    color: var(--coke-black);
}

.product-desc {
    font-size: 0.9rem;
    color: var(--coke-gray);
    margin-bottom: var(--space-sm);
}

.product-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--coke-red);
    color: var(--coke-white);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 20px;
}

/* Experience Section */
.experience {
    padding: var(--space-2xl) 0;
    background: var(--coke-cream);
    overflow: hidden;
}

.experience-grid {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.experience-content {
    padding-right: var(--space-lg);
}

.experience-text {
    font-size: 1.125rem;
    color: var(--coke-gray);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.experience-stats {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.stat {
    text-align: left;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--coke-red);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--coke-red);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--coke-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.5rem;
}

.experience-visual {
    position: relative;
    height: 500px;
}

.experience-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
}

.experience-image {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--coke-red) 0%, var(--coke-red-dark) 100%);
    opacity: 0.9;
}

.experience-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.experience-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
}

/* Heritage Section */
.heritage {
    padding: var(--space-2xl) 0;
    background: var(--coke-white);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: var(--space-xl) auto 0;
    padding: 0 var(--space-md);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--coke-red) 0%, var(--coke-red-dark) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    padding-right: var(--space-lg);
    padding-left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    padding-left: var(--space-lg);
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--coke-red);
    border-radius: 50%;
    border: 4px solid var(--coke-white);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.timeline-content {
    width: 50%;
    padding: 0 var(--space-lg);
}

.timeline-year {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--coke-red);
    margin-bottom: var(--space-xs);
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
    color: var(--coke-black);
}

.timeline-content p {
    color: var(--coke-gray);
    font-size: 0.95rem;
}

/* Sustainability Section */
.sustainability {
    padding: var(--space-2xl) 0;
    background: var(--coke-black);
    color: var(--coke-white);
}

.sustainability-grid {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.sustainability-visual {
    position: relative;
    height: 500px;
    border-radius: 20px;
    overflow: hidden;
}

.sustainability-image {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #2d5016 0%, #1a3009 100%);
}

.sustainability-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
}

.sustainability-content .section-title {
    color: var(--coke-white);
}

.sustainability-content .section-label {
    color: #7CB342;
}

.sustainability-text {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.sustainability-goals {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.goal {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.goal-icon {
    width: 48px;
    height: 48px;
    background: rgba(124, 179, 66, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.goal-icon svg {
    width: 24px;
    height: 24px;
    color: #7CB342;
}

.goal-text h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--coke-white);
}

.goal-text p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Newsletter Section */
.newsletter {
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--coke-red) 0%, var(--coke-red-dark) 100%);
    color: var(--coke-white);
    text-align: center;
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.newsletter-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-sm);
}

.newsletter-text {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--space-md);
}

.newsletter-form {
    display: flex;
    gap: var(--space-xs);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-family: var(--font-body);
    outline: none;
}

.newsletter-form input::placeholder {
    color: var(--coke-gray);
}

.newsletter-form .btn {
    padding: 1rem 2rem;
    white-space: nowrap;
}

/* Footer */
.footer {
    background: var(--coke-black);
    color: var(--coke-white);
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    width: 140px;
    height: 40px;
    margin-bottom: var(--space-sm);
}

.footer-brand .logo-text {
    fill: var(--coke-white);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.footer-column h4 {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
    color: var(--coke-white);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--coke-red);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-md);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: var(--coke-white);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experience-grid,
    .sustainability-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .experience-visual,
    .sustainability-visual {
        height: 400px;
    }
    
    .experience-content {
        padding-right: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        height: 300px;
        order: -1;
    }
    
    .bottle-container {
        width: 150px;
        height: 300px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        padding-left: 50px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: 100%;
        padding: 0;
    }
    
    .timeline-marker {
        left: 20px;
        transform: translateX(-50%);
    }
    
    .experience-stats {
        justify-content: center;
    }
    
    .stat {
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 2rem;
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger animation delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }