/* Reset and Base Styles */
:root {
    /* Primary Colors */
    --primary-color: #2ca58d; /* Green */
    --secondary-color: #0c4e6c; /* Dark Blue */
    --accent-color: #f9a826; /* Yellow */
    
    /* Neutral Colors */
    --dark-color: #1a2a36;
    --text-color: #4a5568;
    --light-text: #718096;
    --bg-color: #ffffff;
    --light-bg: #f8f9fa;
    --border-color: #e2e8f0;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* 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 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=Open+Sans:wght@300;400;600&display=swap');

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--dark-color);
    line-height: 1.3;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

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

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

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

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

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

ul {
    list-style: none;
}

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

.responsive-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    margin-bottom: var(--spacing-xs);
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    display: block;
    width: 70px;
    height: 3px;
    background-color: var(--primary-color);
    margin: var(--spacing-xs) auto 0;
}

.section-header p {
    color: var(--light-text);
    font-size: 1.1rem;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: var(--font-heading);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: #1f8a74;
    color: white;
}

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

.btn-secondary:hover {
    background-color: #083852;
    color: white;
}

.btn-tertiary {
    background-color: transparent;
    color: var(--dark-color);
    border: 1px solid var(--border-color);
}

.btn-tertiary:hover {
    background-color: var(--light-bg);
    color: var(--dark-color);
}

.btn-text {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-text:hover {
    color: var(--secondary-color);
}

.btn-text i {
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.btn-text:hover i {
    transform: translateX(5px);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-sm);
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    margin-top: 0.25rem;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: 400;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(255, 255, 255, 0.95);
}

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

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

.logo img {
    height: 40px;
}

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

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

.nav-list li {
    margin: 0 1rem;
}

.nav-list li:last-child {
    margin-right: 0;
}

.nav-list a {
    color: var(--dark-color);
    font-weight: 500;
    position: relative;
}

.nav-list a:hover {
    color: var(--primary-color);
}

.nav-list a:before {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav-list a:hover:before {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero-section {
    padding: 8rem 0 5rem;
    background: linear-gradient(135deg, rgba(12, 78, 108, 0.8) 0%, rgba(44, 165, 141, 0.8) 100%), url('https://source.unsplash.com/featured/?solar,panels') no-repeat center center/cover;
    color: white;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

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

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* About Section */
.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
}

.about-stats {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-md);
}

.about-stats li {
    text-align: center;
    padding: var(--spacing-sm);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    margin-bottom: var(--spacing-md);
    color: var(--light-text);
}

/* Why Solar Section */
.why-solar-section {
    background-color: var(--light-bg);
}

.why-solar-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.why-solar-image {
    flex: 1;
}

.why-solar-benefits {
    flex: 1;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.benefit-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background-color: rgba(44, 165, 141, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
    font-size: 1.5rem;
}

.benefit-text h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.benefit-text p {
    color: var(--light-text);
}

/* Testimonials Section */
.testimonials-section {
    position: relative;
}

.testimonials-slider {
    display: flex;
    overflow: hidden;
    position: relative;
}

.testimonial-card {
    flex: 0 0 100%;
    padding: var(--spacing-md);
    background-color: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    margin: 0 var(--spacing-sm);
}

.testimonial-quote {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: var(--spacing-sm);
}

.author-info h4 {
    margin-bottom: 0.25rem;
}

.author-info p {
    color: var(--light-text);
    margin-bottom: 0;
    font-size: 0.9rem;
}

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

.testimonial-prev, .testimonial-next {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin: 0 var(--spacing-xs);
    transition: background var(--transition-fast);
}

.testimonial-prev:hover, .testimonial-next:hover {
    background: var(--secondary-color);
}

/* FAQ Section */
.faq-item {
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-md);
    background-color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--light-bg);
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.faq-toggle {
    color: var(--primary-color);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    max-height: 1000px;
}

/* Newsletter Section */
.newsletter-section {
    background-color: var(--secondary-color);
    color: white;
}

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

.newsletter-text {
    flex: 1;
}

.newsletter-text h2 {
    color: white;
}

.newsletter-text p {
    color: rgba(255, 255, 255, 0.8);
}

.newsletter-form {
    flex: 1;
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
}

/* Contact Section */
.contact-content {
    display: flex;
    gap: var(--spacing-lg);
}

.contact-info {
    flex: 1;
}

.contact-form-container {
    flex: 1;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background-color: rgba(44, 165, 141, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
    font-size: 1.25rem;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--light-text);
    margin-bottom: 0.25rem;
}

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

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(44, 165, 141, 0.1);
    color: var(--primary-color);
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
}

.contact-form {
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    flex: 1 1 300px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    flex: 2 1 600px;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-column {
    flex: 1 1 180px;
}

.footer-column h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: white;
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-normal);
}

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

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md) 0;
    z-index: 1000;
    display: none;
}

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

.cookie-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.cookie-content p {
    margin-bottom: var(--spacing-sm);
    max-width: 800px;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light-text);
    transition: color var(--transition-fast);
}

.close:hover {
    color: var(--dark-color);
}

/* Image Placeholders */
.image-placeholder {
    background-color: #e2e8f0;
    border-radius: var(--border-radius-md);
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    font-size: 1.2rem;
    text-align: center;
    padding: var(--spacing-md);
}

.image-placeholder::before {
    content: '\f03e';
    font-family: 'Font Awesome 5 Free';
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.image-placeholder-small {
    background-color: #e2e8f0;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
}

.image-placeholder-small::before {
    content: '\f007';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 1.5rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .about-content, .why-solar-content, .newsletter-content, .contact-content {
        flex-direction: column;
    }
    
    .about-image, .why-solar-image {
        order: -1;
        margin-bottom: var(--spacing-md);
    }
    
    .image-placeholder {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-list {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-md) 0;
        transition: left var(--transition-normal);
        z-index: 90;
    }
    
    .nav-list.active {
        left: 0;
    }
    
    .nav-list li {
        margin: var(--spacing-xs) 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .footer-content, .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 576px) {
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-header {
        margin-bottom: var(--spacing-md);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .cookie-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cookie-buttons .btn {
        width: 100%;
    }
}