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

:root {
    --primary-color: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #38bdf8;
    --secondary-color: #1e293b;
    --accent-color: #14b8a6;
    --accent-purple: #a855f7;
    --accent-orange: #f97316;
    --bg-dark: #0f172a;
    --bg-light: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #ffffff;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-dark);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 20px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    margin: 0 auto;
}

.nav-link {
    font-weight: 500;
    color: var(--text-light);
    padding: 8px 0;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* ===== Buttons ===== */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="60" height="60" patternUnits="userSpaceOnUse"><path d="M 60 0 L 0 0 0 60" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge svg {
    color: var(--primary-light);
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: var(--primary-light);
    position: relative;
}

.hero-description {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 40px;
    font-weight: 800;
    color: white;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

/* ===== Section Styles ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

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

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.section-badge svg {
    color: var(--primary-color);
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
}

.section-subtitle-text {
    text-align: center;
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 60px;
}

/* ===== Grid System ===== */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===== Feature Cards ===== */
.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon.blue {
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary-color);
}

.feature-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.feature-icon.teal {
    background: rgba(20, 184, 166, 0.1);
    color: var(--accent-color);
}

.feature-icon.purple {
    background: rgba(168, 85, 247, 0.1);
    color: var(--accent-purple);
}

.feature-icon.orange {
    background: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
}

.feature-icon.cyan {
    background: rgba(6, 182, 212, 0.1);
    color: #06b6d4;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.feature-subtitle {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Info Cards ===== */
.info-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.info-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.info-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* ===== Spotlight Section ===== */
.spotlight-section {
    margin-top: 60px;
}

.spotlight-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(168, 85, 247, 0.05));
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.spotlight-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.spotlight-description {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Products Section ===== */
.products-section {
    background: var(--bg-light);
}

.products-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 60px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    padding: 60px;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
}

.products-hero-content {
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(14, 165, 233, 0.2);
    color: var(--primary-light);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.products-hero-title {
    font-size: 40px;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}

.products-hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
}

.products-hero-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.products-hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ===== Power Options ===== */
.power-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.power-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.power-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.power-card.popular {
    border-color: var(--primary-color);
    background: rgba(14, 165, 233, 0.05);
}

.popular-badge {
    position: absolute;
    top: -10px;
    right: 10px;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
}

.power-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.power-label {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

.cta-center {
    text-align: center;
}

/* ===== Solution Cards ===== */
.solution-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.solution-image {
    height: 300px;
    overflow: hidden;
    position: relative;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.solution-card:hover .solution-image img {
    transform: scale(1.05);
}

.solution-icon {
    position: absolute;
    top: 280px;
    left: 24px;
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.solution-card > h3,
.solution-card > p,
.solution-card > a {
    padding: 0 24px;
}

.solution-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 60px 0 12px;
}

.solution-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    padding-bottom: 24px;
}

.solution-link:hover {
    gap: 8px;
}

/* ===== Contact Section ===== */
.contact-section {
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-light);
    font-size: 18px;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Contact Form ===== */
.contact-form-wrapper {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 80px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 400px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand p {
    line-height: 1.8;
    font-size: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: white;
    font-weight: 700;
    margin-bottom: 16px;
    font-size: 16px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-legal a:hover {
    color: var(--primary-light);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .products-hero {
        grid-template-columns: 1fr;
        padding: 40px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-wrapper .btn-primary {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .power-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        gap: 32px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .power-options {
        grid-template-columns: 1fr;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 24px;
}

.mt-4 {
    margin-top: 24px;
}

/* ===== Weather & Backup Power Section ===== */
.weather-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
}

.weather-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    margin-top: 48px;
}

.weather-widget-wrapper {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.widget-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.widget-subtitle {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 32px;
}

.weather-widget {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.backup-power-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.backup-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.backup-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(56, 189, 248, 0.05));
}

.backup-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -10px rgba(14, 165, 233, 0.2);
}

.backup-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 24px;
}

.backup-card h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.backup-card > p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.benefit-list {
    list-style: none;
    margin: 32px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benefit-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
}

.benefit-list li svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.weather-impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.impact-card {
    background: white;
    padding: 28px;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
}

.impact-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.impact-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.impact-icon.storm {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.impact-icon.heat {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.impact-icon.freeze {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.impact-icon.power {
    background: linear-gradient(135deg, #10b981, #059669);
}

.impact-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.impact-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Responsive adjustments for weather section */
@media (max-width: 768px) {
    .weather-widget-wrapper {
        padding: 24px;
    }
    
    .backup-card {
        padding: 28px;
    }
    
    .backup-icon {
        width: 64px;
        height: 64px;
    }
    
    .backup-card h3 {
        font-size: 24px;
    }
    
    .weather-impact-grid {
        grid-template-columns: 1fr;
    }
}