/* ===== ECO CAMPAIGN STYLES - GREENPEACE × APPLE INSPIRED ===== */
/* Modern, Minimal, Mobile-First Design System */

/* ===== CSS RESET & MODERN VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern Eco Color Palette */
    --eco-green: #22C55E;
    --eco-green-dark: #16A34A;
    --eco-green-darker: #15803D;
    --eco-green-light: #4ADE80;
    --eco-green-pale: #F0FDF4;
    --eco-green-soft: #DCFCE7;
    
    --eco-blue: #0EA5E9;
    --eco-blue-dark: #0284C7;
    --eco-blue-light: #38BDF8;
    --eco-blue-pale: #F0F9FF;
    
    --eco-teal: #14B8A6;
    
    /* Neutral Colors */
    --black: #0A0A0A;
    --gray-950: #171717;
    --gray-900: #1F1F1F;
    --gray-800: #262626;
    --gray-700: #404040;
    --gray-600: #525252;
    --gray-500: #737373;
    --gray-400: #A3A3A3;
    --gray-300: #D4D4D4;
    --gray-200: #E5E5E5;
    --gray-100: #F5F5F5;
    --gray-50: #FAFAFA;
    --white: #FFFFFF;
    
    /* Accent Colors */
    --accent-yellow: #FBBF24;
    --accent-orange: #F97316;
    
    /* Modern Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    --font-display: 'Poppins', 'Inter', -apple-system, sans-serif;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-green: 0 20px 40px rgba(34, 197, 94, 0.2);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
}

.eco-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ===== MODERN NAVIGATION ===== */
.eco-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: var(--transition-base);
    background: transparent;
}

.eco-nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-3) 0;
}

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

.eco-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: var(--transition-fast);
}

.eco-nav.scrolled .eco-logo {
    color: var(--eco-green);
}

.eco-nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-8);
    align-items: center;
}

.eco-nav-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.eco-nav.scrolled .eco-nav-links a {
    color: var(--gray-700);
}

.eco-nav-links a:hover {
    color: var(--eco-green-light);
}

.eco-nav.scrolled .eco-nav-links a:hover {
    color: var(--eco-green);
}

.eco-nav-cta {
    background: var(--eco-green);
    color: var(--white) !important;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: var(--transition-base);
}

.eco-nav-cta:hover {
    background: var(--eco-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

.eco-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 1001;
}

.eco-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-base);
    border-radius: var(--radius-full);
}

.eco-nav.scrolled .eco-menu-toggle span {
    background: var(--gray-800);
}

.eco-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.eco-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation Menu */
@media (max-width: 1024px) {
    .eco-menu-toggle {
        display: flex;
    }
    
    .eco-nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-6);
        transform: translateX(-100%);
        transition: var(--transition-base);
        z-index: 999;
        visibility: hidden;
    }
    
    .eco-nav-links.active {
        transform: translateX(0);
        visibility: visible;
    }
    
    .eco-nav-links a {
        color: var(--gray-800);
        font-size: 1.25rem;
        padding: var(--space-3) var(--space-6);
    }
    
    .eco-nav-links a:hover {
        color: var(--eco-green);
    }
    
    .eco-nav-cta {
        margin-top: var(--space-4);
    }
}

/* ===== ECO HERO SECTION ===== */
.eco-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.eco-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.eco-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.eco-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(21, 128, 61, 0.7) 0%, rgba(22, 163, 74, 0.65) 50%, rgba(2, 132, 199, 0.6) 100%);
}

.eco-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(34, 197, 94, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.2) 0%, transparent 50%);
    z-index: 1;
}

.eco-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: var(--space-24) var(--space-6);
}

.eco-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.15);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    margin-bottom: var(--space-6);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.eco-hero-badge i {
    color: var(--eco-green-light);
}

.eco-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -2px;
}

.eco-hero-title span {
    background: linear-gradient(90deg, var(--eco-green-light), var(--eco-blue-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.eco-hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.eco-hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-10);
}

.eco-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    will-change: transform;
    -webkit-tap-highlight-color: transparent;
}

.eco-btn:active {
    transform: scale(0.98);
}

.eco-btn-primary {
    background: var(--white);
    color: var(--eco-green-dark);
    box-shadow: var(--shadow-lg);
}

.eco-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

.eco-btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.eco-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.eco-btn-green:hover {
    background: var(--eco-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

.eco-btn-outline {
    background: transparent;
    color: var(--eco-green);
    border: 2px solid var(--eco-green);
}

.eco-btn-outline:hover {
    background: var(--eco-green);
    color: var(--white);
}

/* Download Buttons */
.eco-download-btns {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.eco-download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-6);
    background: rgba(0, 0, 0, 0.3);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-base);
}

.eco-download-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
}

.eco-download-btn i {
    font-size: 1.5rem;
}

.eco-download-btn span {
    text-align: left;
    line-height: 1.3;
}

.eco-download-btn .small {
    font-size: 0.7rem;
    opacity: 0.8;
    display: block;
}

.eco-download-btn .large {
    font-size: 0.95rem;
    font-weight: 600;
}

.eco-hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.eco-scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    position: relative;
}

.eco-scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-full);
    animation: eco-scroll 2s ease-in-out infinite;
}

@keyframes eco-scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

/* ===== ABOUT THE MOVEMENT ===== */
.eco-about {
    padding: var(--space-32) 0;
    background: var(--white);
}

.eco-about .eco-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.eco-about-content {
    max-width: 550px;
}

.eco-section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--eco-green);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-4);
}

.eco-section-tag i {
    font-size: 1rem;
}

.eco-section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: var(--space-6);
    letter-spacing: -1px;
}

.eco-about-text {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.eco-about-text strong {
    color: var(--eco-green-dark);
    font-weight: 600;
}

.eco-highlight-quote {
    background: linear-gradient(135deg, var(--eco-green-pale), var(--eco-blue-pale));
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--eco-green);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--gray-700);
    margin: var(--space-8) 0;
}

.eco-about-visual {
    position: relative;
}

.eco-about-card {
    background: linear-gradient(135deg, var(--eco-green), var(--eco-blue));
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    color: var(--white);
    text-align: center;
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
}

.eco-about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.eco-about-card-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    font-size: 2.5rem;
}

.eco-about-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.eco-about-card p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* About Image Frame Style (like original) */
.eco-image-frame {
    aspect-ratio: 4/3;
    background: var(--gray-200);
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.eco-about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.eco-image-frame:hover .eco-about-img {
    transform: scale(1.05);
}

.eco-about-visual {
    position: relative;
}

.eco-stat-card {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: linear-gradient(135deg, var(--eco-green), var(--eco-blue));
    padding: var(--space-6);
    text-align: center;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-green);
}

.eco-stat-big {
    display: block;
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.eco-stat-text {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.9);
    margin-top: var(--space-2);
}

/* ===== WHY IT MATTERS - CARD GRID ===== */
.eco-why-matters {
    padding: var(--space-32) 0;
    background: var(--gray-50);
}

.eco-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.eco-section-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-top: var(--space-4);
}

.eco-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.eco-feature-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--gray-100);
}

.eco-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--eco-green-light);
}

.eco-feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--eco-green-soft), var(--eco-blue-pale));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    font-size: 1.75rem;
    color: var(--eco-green);
}

.eco-feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.eco-feature-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== HOW IT WORKS ===== */
.eco-how-works {
    padding: var(--space-32) 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.eco-section-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.eco-section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(21, 128, 61, 0.92) 0%, rgba(22, 163, 74, 0.88) 50%, rgba(2, 132, 199, 0.85) 100%);
    z-index: 1;
}

.eco-how-works .eco-container {
    position: relative;
    z-index: 2;
}

.eco-how-works .eco-section-title {
    color: var(--white);
}

.eco-how-works .eco-section-desc {
    color: rgba(255, 255, 255, 0.9);
}

.eco-how-works .eco-section-tag {
    color: var(--accent-yellow);
}

.eco-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    position: relative;
}

.eco-steps::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, var(--eco-green-light), var(--eco-blue-light));
    z-index: 0;
}

.eco-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.eco-step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--eco-green), var(--eco-blue));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    box-shadow: var(--shadow-green);
}

.eco-step h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-3);
}

.eco-step p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 280px;
    margin: 0 auto;
}

/* ===== GALLERY SECTION ===== */
.eco-gallery {
    padding: var(--space-32) 0;
    background: var(--gray-50);
}

.eco-gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 200px);
    gap: var(--space-4);
}

.eco-gallery-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: var(--radius-lg);
}

.eco-gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.eco-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.eco-gallery-item:hover img {
    transform: scale(1.1);
}

.eco-gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-6);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.eco-gallery-item:hover .eco-gallery-overlay {
    opacity: 1;
}

.eco-gallery-overlay span {
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

/* ===== IMPACT SECTION ===== */
.eco-impact {
    padding: var(--space-32) 0;
    background: linear-gradient(135deg, var(--gray-950) 0%, var(--gray-900) 100%);
    color: var(--white);
    text-align: center;
}

.eco-impact .eco-section-title {
    color: var(--white);
}

.eco-impact .eco-section-desc {
    color: var(--gray-400);
}

.eco-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-top: var(--space-16);
}

.eco-stat {
    padding: var(--space-8);
}

.eco-stat-number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 700;
    background: linear-gradient(90deg, var(--eco-green-light), var(--eco-blue-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.eco-stat-label {
    font-size: 1rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===== JOIN THE MOVEMENT CTA ===== */
.eco-join {
    padding: var(--space-32) 0;
    background: linear-gradient(135deg, var(--eco-green) 0%, var(--eco-green-dark) 50%, var(--eco-blue-dark) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.eco-join::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.eco-join .eco-container {
    position: relative;
    z-index: 1;
}

.eco-join-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-6);
    letter-spacing: -1px;
}

.eco-join-text {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--space-10);
}

.eco-join-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.eco-btn-white {
    background: var(--white);
    color: var(--eco-green-dark);
    font-weight: 600;
}

.eco-btn-white:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

.eco-btn-ghost {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.eco-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

/* ===== CONTACT SECTION ===== */
.eco-contact {
    padding: var(--space-24) 0;
    background: var(--gray-50);
    text-align: center;
}

.eco-contact-links {
    display: flex;
    gap: var(--space-10);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-10);
}

.eco-contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--gray-700);
    text-decoration: none;
    font-size: 1.05rem;
    transition: var(--transition-fast);
}

.eco-contact-item:hover {
    color: var(--eco-green);
}

.eco-contact-item i {
    width: 44px;
    height: 44px;
    background: var(--eco-green);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

/* ===== ECO FOOTER ===== */
.eco-footer {
    background: var(--gray-950);
    color: var(--gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.eco-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--gray-800);
}

.eco-footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-6);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--gray-800);
}

.eco-footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.eco-footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.eco-footer-tagline {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.eco-footer-social {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.eco-footer-social a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-base);
}

.eco-footer-social a:hover {
    background: var(--eco-green);
    color: var(--white);
    transform: translateY(-3px);
}

.eco-footer-links h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.eco-footer-links ul {
    list-style: none;
}

.eco-footer-links li {
    margin-bottom: var(--space-2);
}

.eco-footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.eco-footer-links a:hover {
    color: var(--eco-green-light);
}

.eco-footer-bottom {
    padding-top: var(--space-8);
    text-align: center;
    font-size: 0.9rem;
}

.eco-footer-bottom span {
    color: var(--eco-green-light);
}

/* ===== BACK TO TOP BUTTON ===== */
.eco-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--eco-green);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
}

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

.eco-back-to-top:hover {
    background: var(--eco-green-dark);
    transform: translateY(-5px);
    box-shadow: var(--shadow-green);
}

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

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

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

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

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

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

/* ===== RESPONSIVE DESIGN - MOBILE FIRST ===== */

/* Tablet */
@media (max-width: 1024px) {
    .eco-menu-toggle {
        display: flex;
    }
    
    .eco-about .eco-container {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .eco-about-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .eco-stat-card {
        right: 0;
        bottom: -20px;
    }
    
    .eco-steps::before {
        display: none;
    }
    
    .eco-steps {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
    
    .eco-stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
    
    .eco-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 180px);
    }
    
    .eco-gallery-item.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .eco-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .eco-container {
        padding: 0 var(--space-4);
    }
    
    .eco-hero {
        min-height: 90vh;
    }
    
    .eco-hero-content {
        padding: var(--space-20) var(--space-4);
    }
    
    .eco-hero-title {
        font-size: clamp(2rem, 10vw, 3rem);
        letter-spacing: -1px;
    }
    
    .eco-hero-subtitle {
        font-size: 1rem;
    }
    
    .eco-hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .eco-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .eco-download-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .eco-download-btn {
        width: 100%;
        max-width: 280px;
    }
    
    .eco-hero-scroll {
        display: none;
    }
    
    .eco-section-title {
        font-size: clamp(1.75rem, 6vw, 2.25rem);
    }
    
    .eco-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .eco-stat-card {
        position: relative;
        bottom: 0;
        right: 0;
        margin-top: calc(-1 * var(--space-8));
        margin-left: auto;
        width: fit-content;
    }
    
    .eco-stat-big {
        font-size: 2.5rem;
    }
    
    .eco-gallery-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: repeat(3, 150px);
        gap: var(--space-2);
    }
    
    .eco-gallery-overlay {
        opacity: 1;
        padding: var(--space-3);
    }
    
    .eco-gallery-overlay span {
        font-size: 0.85rem;
    }
    
    .eco-stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .eco-stat {
        padding: var(--space-4);
    }
    
    .eco-stat-number {
        font-size: 3rem;
    }
    
    .eco-join-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }
    
    .eco-join-text {
        font-size: 1rem;
    }
    
    .eco-join-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .eco-contact-links {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .eco-footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .eco-footer-brand {
        align-items: center;
    }
    
    .eco-footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-8);
    }
    
    .eco-footer-social {
        justify-content: center;
    }
    
    .eco-back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .eco-hero-title {
        font-size: 1.875rem;
    }
    
    .eco-about-card {
        padding: var(--space-8);
    }
    
    .eco-feature-card {
        padding: var(--space-6);
    }
    
    .eco-step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .eco-gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(5, 140px);
    }
    
    .eco-gallery-item.large {
        grid-column: span 1;
    }
}

/* ===== CO2 CALCULATOR STYLES ===== */
.eco-calculator {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--eco-green-pale) 0%, var(--eco-blue-pale) 100%);
}

.calculator-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: 3rem;
    box-shadow: var(--shadow-xl);
    max-width: 800px;
    margin: 0 auto;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.calc-input-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.calc-input-group input,
.calc-input-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.calc-input-group input:focus,
.calc-input-group select:focus {
    outline: none;
    border-color: var(--eco-green);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.calc-button {
    width: 100%;
    padding: 1.25rem;
    background: linear-gradient(135deg, var(--eco-green), var(--eco-blue));
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.calc-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

.calc-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--gray-100);
}

.calc-result-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--eco-green-pale);
    border-radius: var(--radius-xl);
}

.calc-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.calc-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--eco-green-darker);
    margin-bottom: 0.5rem;
}

.calc-label {
    color: var(--gray-600);
    font-size: 0.9rem;
    font-weight: 500;
}

.calc-share {
    margin-top: 2rem;
    text-align: center;
}

.calc-share p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.share-btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.whatsapp-share {
    background: #25D366;
    color: var(--white);
}

.whatsapp-share:hover {
    background: #20BA5A;
    transform: translateY(-2px);
}

/* ===== REFERRAL PROGRAM STYLES ===== */
.eco-referral {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--eco-green) 0%, var(--eco-blue) 100%);
    position: relative;
    overflow: hidden;
}

.referral-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.referral-left h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--white);
    margin: 1rem 0 1.5rem;
}

.referral-left p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.referral-benefits {
    margin-bottom: 2rem;
}

.referral-benefit {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.referral-benefit i {
    color: var(--accent-yellow);
    font-size: 1.25rem;
}

.referral-benefit strong {
    color: var(--accent-yellow);
}

.referral-visual {
    position: relative;
}

.referral-circle {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.15);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.referral-circle i {
    font-size: 5rem;
    color: var(--white);
}

.referral-stats {
    text-align: center;
}

.ref-stat {
    background: rgba(255, 255, 255, 0.15);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 0.75rem;
    color: var(--white);
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .calculator-card {
        padding: 2rem 1.5rem;
    }
    
    .calculator-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-results {
        grid-template-columns: 1fr;
    }
    
    .referral-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .referral-visual {
        order: -1;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .eco-fade-in,
    .eco-slide-left,
    .eco-slide-right {
        opacity: 1;
        transform: none;
    }
}

/* ===== UTILITY CLASSES ===== */
.eco-highlight-quote i {
    color: var(--eco-green);
    margin-right: 8px;
}

.eco-btn-outline-spaced {
    margin-top: 1.5rem;
}

.eco-section-tag-light {
    color: var(--eco-green-light) !important;
}

.eco-section-tag-blue {
    color: var(--eco-blue) !important;
}

.calc-results,
.calc-share {
    display: none;
}

/* ===== ACCESSIBILITY & FOCUS STYLES ===== */
/* Enhanced keyboard navigation and focus states */

*:focus {
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--eco-green);
    outline-offset: 2px;
    border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--eco-green);
    outline-offset: 3px;
}

.eco-btn:focus-visible {
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
}

/* Skip to main content link for screen readers */
.skip-to-main {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1em;
    background-color: var(--eco-green);
    color: white;
    text-decoration: none;
    font-weight: 600;
}

.skip-to-main:focus {
    left: 50%;
    transform: translateX(-50%);
    top: 1em;
}

/* Improve tap targets for mobile */
@media (max-width: 768px) {
    button,
    a {
        min-height: 44px;
        min-width: 44px;
    }
}

/* ===== PAGE LOADER ===== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--eco-green) 0%, var(--eco-green-dark) 50%, var(--eco-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    color: var(--white);
}

.loader-icon {
    font-size: 4rem;
    margin-bottom: var(--space-6);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.loader-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 1.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

.spinner-ring:nth-child(1) {
    animation-delay: 0s;
    border-top-color: rgba(255, 255, 255, 0.9);
}

.spinner-ring:nth-child(2) {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    animation-delay: 0.2s;
    border-top-color: rgba(255, 255, 255, 0.7);
}

.spinner-ring:nth-child(3) {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    animation-delay: 0.4s;
    border-top-color: rgba(255, 255, 255, 0.5);
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loader-text {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    letter-spacing: -0.5px;
    animation: pulse 2s ease-in-out infinite;
}

.loader-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 500;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Hide loader if JavaScript is disabled */
.no-js .page-loader {
    display: none;
}

/* ===== SMOOTH SCROLLING ENHANCEMENTS ===== */
/* Better scroll-margin for fixed header */
section {
    scroll-margin-top: 100px;
}

/* Smooth transitions for all interactive elements */
a, button, input, select, textarea {
    transition: all var(--transition-base);
}

/* Optimize animations for performance */
@media (hover: hover) {
    .eco-btn:hover,
    .eco-feature-card:hover,
    .eco-stat:hover {
        transform: translateY(-4px);
    }
}

/* Improve button states */
button:disabled,
input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Enhanced input focus states */
input:focus,
select:focus,
textarea:focus {
    border-color: var(--eco-green);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

/* Better error states */
input:invalid:not(:placeholder-shown) {
    border-color: var(--accent-orange);
}

input:valid:not(:placeholder-shown) {
    border-color: var(--eco-green);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
/* Use CSS containment for better performance */
.eco-feature-card,
.eco-stat,
.eco-gallery-item,
.eco-step {
    contain: layout style paint;
}

/* Optimize will-change usage - only when needed */
.eco-btn:hover,
.eco-feature-card:hover,
.eco-back-to-top.visible {
    will-change: transform;
}

/* GPU acceleration for smooth animations */
.eco-fade-in,
.eco-slide-left,
.eco-slide-right {
    transform: translateZ(0);
    backface-visibility: hidden;
}