/* Green Energy Website Styles */
/* Color Scheme: White with various shades of green */

:root {
    /* Green Color Palette */
    --primary-green: #2d7a2d;
    --primary-green-dark: #1f5a1f;
    --primary-green-light: #4da64d;
    --secondary-green: #5cb85c;
    --light-green: #90ee90;
    --very-light-green: #f0fff0;
    --mint-green: #98fb98;
    --forest-green: #228b22;
    --emerald-green: #50c878;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #fafafa;
    --light-gray: #f5f5f5;
    --gray: #e0e0e0;
    --dark-gray: #666666;
    --text-dark: #333333;
    --text-light: #777777;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Breakpoints */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(45, 122, 45, 0.1);
    --shadow-md: 0 4px 8px rgba(45, 122, 45, 0.15);
    --shadow-lg: 0 8px 16px rgba(45, 122, 45, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

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

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

ul, ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.section:nth-child(even) {
    background-color: var(--very-light-green);
}

/* Header and Navigation */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-green);
    text-decoration: none;
}

.nav-brand i {
    font-size: 1.8rem;
    color: var(--secondary-green);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: all var(--transition-fast);
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--very-light-green);
    color: var(--primary-green);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-green);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-xxl)) 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--very-light-green) 0%, var(--white) 100%);
    display: flex;
    align-items: center;
    min-height: 80vh;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

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

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* Section Titles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-xxl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--secondary-green);
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

.content-text h3 {
    color: var(--primary-green);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.content-text h4 {
    color: var(--primary-green-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.content-text ul {
    background-color: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--secondary-green);
}

.content-text ul li {
    color: var(--text-dark);
}

.content-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

.tech-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border-top: 4px solid var(--secondary-green);
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tech-icon {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.tech-icon i {
    font-size: 3rem;
    color: var(--primary-green);
}

.tech-card h3 {
    text-align: center;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
}

.tech-card > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.tech-details {
    background-color: var(--very-light-green);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-top: var(--spacing-md);
}

.tech-details h4 {
    color: var(--primary-green);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.tech-details h5 {
    color: var(--forest-green);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.tech-details ul {
    background-color: var(--white);
    border-left: 3px solid var(--mint-green);
}

/* India Content */
.india-content {
    max-width: 1200px;
    margin: 0 auto;
}

.india-overview {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.india-overview h3 {
    font-size: 2rem;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
}

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

.stat-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--light-green);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-green);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

.india-sections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

.india-section {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.india-section h4 {
    font-size: 1.75rem;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.section-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.section-content img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.section-text h5 {
    color: var(--forest-green);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.section-text ul {
    background-color: var(--very-light-green);
    border-left: 3px solid var(--secondary-green);
}

.section-text ul li {
    color: var(--text-dark);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--forest-green) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: var(--mint-green);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.cta-section .btn-primary:hover {
    background-color: var(--light-gray);
    color: var(--primary-green-dark);
}

.cta-section .btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* Contact Page Styles */
.contact-hero {
    padding: calc(80px + var(--spacing-xxl)) 0 var(--spacing-lg);
    background: linear-gradient(135deg, var(--very-light-green) 0%, var(--mint-green) 100%);
    text-align: center;
}

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

.contact-hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.contact-content {
    padding: var(--spacing-xxl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xxl);
}

.contact-info h2 {
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin-top: var(--spacing-xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--very-light-green);
    border-radius: 8px;
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    color: var(--white);
    font-size: 1.25rem;
}

.contact-text h3 {
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-xs);
}

.contact-link {
    font-weight: var(--font-weight-medium);
    color: var(--primary-green);
    font-size: 1.125rem;
}

.help-list,
.serve-list {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 6px;
    border-left: 3px solid var(--secondary-green);
}

.contact-note {
    background-color: var(--light-green);
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin-top: var(--spacing-xl);
}

.contact-note h3 {
    color: var(--primary-green-dark);
}

.contact-visual img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.contact-highlights {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.highlight-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-xs);
}

.highlight-item h4 {
    font-size: 1rem;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-xs);
}

.highlight-item p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.quick-facts {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.quick-facts h3 {
    color: var(--primary-green-dark);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.facts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.fact-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background-color: var(--very-light-green);
    border-radius: 6px;
}

.fact-number {
    font-weight: var(--font-weight-bold);
    color: var(--primary-green);
    font-size: 1.125rem;
}

.fact-text {
    color: var(--text-light);
    font-size: 0.875rem;
    text-align: right;
}

.contact-cta {
    background: linear-gradient(135deg, var(--secondary-green) 0%, var(--primary-green) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.contact-cta h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.contact-cta p {
    color: var(--mint-green);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

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

.contact-cta .btn-primary:hover {
    background-color: var(--light-gray);
    color: var(--primary-green-dark);
}

/* Footer */
.footer {
    background-color: var(--primary-green-dark);
    color: var(--white);
    padding: var(--spacing-xxl) 0 var(--spacing-md);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--light-green);
    margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section li {
    color: var(--mint-green);
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--light-green);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--forest-green);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: var(--mint-green);
    margin: 0;
}

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

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

/* Cookie Notice */
.cookie-notice {
    background-color: var(--light-green);
    padding: var(--spacing-sm);
    border-radius: 6px;
    margin-top: var(--spacing-md);
}

.cookie-notice p {
    color: var(--text-dark);
    font-size: 0.875rem;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .section-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .highlight-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .fact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xs);
    }
    
    .fact-text {
        text-align: center;
    }
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-green: #0d5f0d;
        --primary-green-dark: #0a4a0a;
        --text-light: #333333;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus,
.btn:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .nav,
    .cta-section,
    .contact-cta,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: black;
        background: white;
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Smooth scroll padding for fixed header */
html {
    scroll-padding-top: 80px;
}