/* --- RESET & VARIABLES --- */
:root {
    --color-primary: #001f3f; /* Navy Blue */
    --color-accent: #ff4136; /* Red */
    --color-dark: #111111; /* Black */
    --color-light: #ffffff;
    --color-gray: #f4f4f4;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition: all 0.3s ease;
}

/* NO * SELECTOR AS REQUESTED. Using body as base. */
body, h1, h2, h3, h4, p, ul, li, a, button {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
    text-decoration: none;
    list-style: none;
}

body {
    background-color: var(--color-light);
    color: var(--color-dark);
    overflow-x: hidden;
}

/* --- PAGE LOADER --- */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-content {
    text-align: center;
}

.loader-circle {
    width: 50px;
    height: 50px;
    border: 5px solid var(--color-light);
    border-top: 5px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px auto;
}

.loader-text {
    color: var(--color-light);
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 2px;
}

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

/* --- UTILITIES --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.section-heading {
    text-align: center;
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 50px;
}

/* --- AD BANNER --- */
.ad-banner {
    background-color: var(--color-gray);
    text-align: center;
    padding: 8px;
    font-size: 0.8rem;
    color: #555;
    border-bottom: 1px solid #ddd;
}

/* --- HEADER --- */
.main-header {
    background-color: var(--color-primary);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-name {
    color: var(--color-light);
    font-size: 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--color-light);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-shop-nav {
    background-color: var(--color-accent);
    color: var(--color-light);
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: bold;
    transition: var(--transition);
}

.btn-shop-nav:hover {
    background-color: #d32f2f;
    transform: translateY(-2px);
}

.hamburger-btn {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    color: var(--color-light);
    font-size: 1.5rem;
    cursor: pointer;
}

/* --- HERO SECTION --- */
.hero-section {
    background-image: linear-gradient(rgba(0, 31, 63, 0.7), rgba(0, 31, 63, 0.7)), url('https://images.unsplash.com/photo-1509391366360-2e959784a276?q=80&w=1920&auto=format&fit=crop'); /* Solar authentic image placeholder */
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-light);
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-hero-cta {
    background-color: var(--color-accent);
    color: var(--color-light);
    padding: 15px 35px;
    font-size: 1.2rem;
    border-radius: 5px;
    font-weight: bold;
    transition: var(--transition);
    display: inline-block;
}

.btn-hero-cta:hover {
    background-color: #d32f2f;
    transform: scale(1.05);
}

/* --- ABOUT SECTION --- */
.about-section {
    background-color: var(--color-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    line-height: 1.6;
    color: #444;
}

/* --- WHY CHOOSE US --- */
.why-us-section {
    background-color: #f9f9f9;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.feature-card {
    background: var(--color-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.feature-title {
    margin-bottom: 15px;
    color: var(--color-dark);
}

.feature-desc {
    color: #666;
    line-height: 1.5;
}

/* --- TESTIMONIALS --- */
.testimonials-section {
    background-color: var(--color-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    border: 1px solid #eee;
    padding: 30px;
    border-radius: 8px;
    background-color: #fff;
}

.client-info {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.client-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #ccc;
    margin-right: 15px;
    background-size: cover;
    background-position: center;
}
/* Placeholder avatars using colors/gradients since exact URLs aren't provided */
.avatar-1 { background-image: linear-gradient(45deg, #001f3f, #666); }
.avatar-2 { background-image: linear-gradient(45deg, #ff4136, #ccc); }
.avatar-3 { background-image: linear-gradient(45deg, #333, #999); }

.client-name {
    font-weight: bold;
    color: var(--color-primary);
}

.client-review {
    font-style: italic;
    color: #555;
}

/* --- FAQ --- */
.faq-section {
    background-color: #f9f9f9;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-light);
    margin-bottom: 15px;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid var(--color-primary);
}

.faq-question {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.faq-answer {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* --- FOOTER --- */
.main-footer {
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    color: var(--color-accent);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-text {
    margin-bottom: 10px;
    color: #ccc;
    font-size: 0.9rem;
}

.footer-link-item {
    margin-bottom: 10px;
}

.footer-link, .footer-modal-btn {
    color: #ccc;
    transition: var(--transition);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    text-align: left;
}

.footer-link:hover, .footer-modal-btn:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

.footer-disclaimer {
    border-top: 1px solid #333;
    padding-top: 20px;
    margin-bottom: 20px;
}

.disclaimer-text {
    font-size: 0.8rem;
    color: #777;
    text-align: center;
}

.footer-copyright {
    text-align: center;
    font-size: 0.9rem;
    color: #aaa;
}

/* --- MOBILE MENU --- */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 75%; /* 75% width as requested */
    height: 100%;
    background-color: var(--color-primary);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.4s ease;
    padding: 20px;
    box-shadow: 2px 0 10px rgba(0,0,0,0.5);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 15px;
}

.mobile-brand {
    color: var(--color-light);
    font-size: 1.5rem;
    font-weight: bold;
}

.close-btn {
    background: none;
    border: none;
    color: var(--color-light);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav-item {
    margin-bottom: 20px;
}

.mobile-nav-link {
    color: var(--color-light);
    font-size: 1.2rem;
    display: block;
}

.mobile-btn-shop {
    background-color: var(--color-accent);
    color: var(--color-light);
    padding: 12px;
    display: block;
    text-align: center;
    border-radius: 4px;
    margin-top: 30px;
    font-weight: bold;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 150;
    display: none; /* Hidden by default */
}

.overlay.active {
    display: block;
}

/* --- MODALS --- */
.modal {
    display: none; 
    position: fixed; 
    z-index: 1000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    background-color: rgba(0,0,0,0.8); 
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto; 
    padding: 30px;
    border: 1px solid #888;
    width: 90%;
    max-width: 600px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.close-modal {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 10px;
    right: 20px;
}

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

.modal-title {
    color: var(--color-primary);
    margin-bottom: 20px;
}

.modal-text {
    line-height: 1.6;
    color: #333;
}

/* --- COOKIE BANNER --- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: 20px;
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
    transform: translateY(100%); /* Hidden initially */
    transition: transform 0.5s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-text {
    font-size: 0.9rem;
    max-width: 600px;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
}

.cookie-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
}

.cookie-btn.accept {
    background-color: var(--color-accent);
    color: var(--color-light);
}

.cookie-btn.reject {
    background-color: #555;
    color: var(--color-light);
}

.cookie-btn:hover {
    opacity: 0.9;
}

/* --- MEDIA QUERIES --- */
@media screen and (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    
    .hamburger-btn {
        display: block;
    }

    .btn-shop-nav {
        display: none; /* Hide top shop btn on mobile, it's in menu */
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr; /* Stack footer cols */
        text-align: center;
    }
    
    .footer-link, .footer-modal-btn {
        text-align: center;
    }
    
    .footer-link:hover, .footer-modal-btn:hover {
        padding-left: 0;
        color: var(--color-accent);
    }
}