:root {
    --primary-blue: #0A192F;
    --secondary-blue: #112240;
    --accent-blue: #64FFDA;
    --secure-green: #00C853;
    --text-light: #E6F1FF;
    --text-dark: #8892B0;
    --white: #FFFFFF;
    --gray-bg: #F4F7F6;
    --danger: #FF3D00;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body {
    overflow-x: hidden;
    background-color: var(--white);
    color: var(--primary-blue);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: #444;
}

/* Header & Navigation */
header {
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.top-bar {
    background-color: var(--primary-blue);
    color: var(--white);
    text-align: center;
    padding: 10px;
    font-size: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.highlight-btn {
    background-color: var(--secure-green);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: bold;
    display: inline-block;
    transition: background 0.3s ease;
    margin-left: 10px;
}

.highlight-btn:hover {
    background-color: #00A040;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-blue);
}

.logo span {
    color: var(--secure-green);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links li a {
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links li a:hover {
    color: var(--secure-green);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    -webkit-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
    background-color: var(--primary-blue);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 80px 5%;
    text-align: center;
}

.hero h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    color: var(--text-light);
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
}

.hero .highlight-btn {
    font-size: 1.2rem;
    padding: 12px 24px;
}

/* Trust Badges */
.trust-badges {
    background-color: var(--gray-bg);
    padding: 20px 0;
    text-align: center;
}
.trust-badges img {
    height: 40px;
    margin: 0 15px;
    opacity: 0.8;
}

/* Products */
.products {
    padding: 60px 5%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: var(--white);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 30px 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.product-card h3 {
    font-size: 1.5rem;
    margin: 15px 0;
}

.product-card p {
    color: #666;
    margin-bottom: 20px;
}

.price {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
    width: 100%;
}

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

/* Common Page Layouts */
.page-container {
    padding: 60px 5%;
    max-width: 1000px;
    margin: 0 auto;
    min-height: 50vh;
}

.form-container {
    background: var(--gray-bg);
    padding: 40px;
    border-radius: 8px;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.cart-table, .checkout-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.cart-table th, .cart-table td, .checkout-table th, .checkout-table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

.cart-table th, .checkout-table th {
    background-color: var(--gray-bg);
}

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 40px 5% 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 30px;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-section p, .footer-section a {
    color: var(--text-light);
    margin-bottom: 10px;
    display: block;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-bottom p {
    color: var(--text-dark);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001; /* Ensure it's above other elements but below mobile menu if open */
}

#chatBtn {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: background 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

#chatBtn:hover {
    background-color: var(--secure-green);
}

/* Media Queries for Mobile Responsiveness */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 100px; /* Adjust based on top-bar and navbar height */
        gap: 0;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 16px 0;
    }
    
    .top-bar {
        font-size: 0.9rem;
        padding: 10px 5px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    /* Prevent floating chat from overlapping call buttons on mobile */
    .chat-widget {
        bottom: 80px; /* Lift it up on mobile so bottom screen actions are clear */
        right: 15px;
    }
}