/* ==========================================================================
   Main Stylesheet for Antigravity Batteries LLC
   ========================================================================== */

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

:root {
    /* Color Palette */
    --primary-color: #00BCD4;
    --secondary-color: #000000;
    --accent-color: #FF0000;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-white: #FFFFFF;
    --bg-gray: #F5F5F5;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    
    /* Typography */
    --font-primary: 'Roboto', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #00acc1;
    border-color: #00acc1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

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

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

.btn-product {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    width: 100%;
    padding: 10px 20px;
}

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

.btn-submit {
    background-color: var(--primary-color);
    color: var(--bg-white);
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    cursor: pointer;
    width: 100%;
}

.btn-submit:hover {
    background-color: #00acc1;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 188, 212, 0.4);
}

/* Header Styles */
.header {
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    padding: 8px 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact-info {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-info a {
    color: var(--bg-white);
    font-size: 0.9rem;
}

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

.contact-info i {
    margin-right: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--bg-white);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

/* Navigation */
.navbar {
    padding: 1rem 0;
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--secondary-color);
    letter-spacing: 1px;
    margin: 0;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition-fast);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.3;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.1) 0%, rgba(0, 0, 0, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-title {
    color: var(--bg-white);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-description {
    color: var(--bg-white);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), #0097a7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--bg-white);
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

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

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

.section-header h2 {
    color: var(--secondary-color);
    font-weight: 800;
    letter-spacing: 1px;
}

.section-subtitle {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 500;
}

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

.product-category {
    margin-bottom: var(--spacing-lg);
}

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

.category-header h3 {
    color: var(--secondary-color);
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    height: 300px;
    background-color: var(--bg-gray);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--accent-color);
    color: var(--bg-white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.product-info {
    padding: 1.5rem;
}

.product-info h4 {
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.product-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.price-original {
    color: var(--text-light);
    text-decoration: line-through;
    font-size: 1rem;
}

.price-sale {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: 700;
}

/* About Preview Section */
.about-preview {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.about-features {
    margin: 1.5rem 0;
}

.about-features li {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-features i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Order Form Section */
.order-form-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.order-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.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(0, 188, 212, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-privacy {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 1rem;
}

.form-privacy a {
    color: var(--primary-color);
    text-decoration: underline;
}

.form-privacy a:hover {
    color: #00acc1;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3,
.footer-col h4 {
    color: var(--bg-white);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-col p {
    color: #cccccc;
    line-height: 1.8;
    margin-bottom: 1rem;
}

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

.footer-col ul li a {
    color: #cccccc;
    transition: var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #cccccc;
    margin-bottom: 1rem;
}

.footer-contact i {
    color: var(--primary-color);
    margin-top: 3px;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #999999;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition-normal);
    z-index: 999;
}

.back-to-top:hover {
    background-color: #00acc1;
    transform: translateY(-3px);
}

.back-to-top.show {
    display: flex;
}

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

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}
/* Hero background image override */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1593941707882-a5bba14938c7?w=1920&h=600&fit=crop&q=80') center/cover no-repeat;
    opacity: 0.3;
    z-index: 0;
}