:root {
    /* Colors */
    --color-primary: #1A365D; /* Dark blue, very elegant */
    --color-primary-light: #2B6CB0;
    --color-whatsapp: #25D366;
    --color-whatsapp-hover: #128C7E;
    
    --color-bg-light: #F7FAFC;
    --color-bg-white: #FFFFFF;
    
    --color-text-main: #2D3748;
    --color-text-muted: #718096;
    --color-border: #E2E8F0;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Shadow and Radius */
    --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(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 600;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Header */
.main-header {
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.main-nav {
    display: flex;
    gap: var(--space-6);
}

.main-nav a {
    font-weight: 500;
    color: var(--color-text-main);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: var(--font-body);
}

.btn-whatsapp, .btn-whatsapp-full {
    background-color: var(--color-whatsapp);
    color: white;
}

.btn-whatsapp:hover, .btn-whatsapp-full:hover {
    background-color: var(--color-whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-whatsapp-full {
    display: block;
    width: 100%;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

/* Hero Banner */
.hero-banner {
    background-color: var(--color-bg-white);
    padding: var(--space-16) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

/* Benefits Bar */
.benefits-bar {
    background-color: var(--color-bg-white);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-8) 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.benefit-icon {
    font-size: 2rem;
}

.benefit-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.benefit-item p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Featured Products */
.featured-products {
    padding: var(--space-16) 0;
}

.featured-products h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--space-12);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-8);
}

.product-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    width: 100%;
    /* background-image in inline styles or src */
}

.product-info {
    padding: var(--space-6);
}

.product-brand {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
    display: block;
}

.product-name {
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
    color: var(--color-text-main);
}

.product-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Footer */
.main-footer {
    background-color: var(--color-primary);
    color: white;
    text-align: center;
    padding: var(--space-8) 0;
    margin-top: var(--space-16);
}

/* Responsive */
@media (max-width: 992px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none; /* Mobile menu needed */
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .benefits-grid {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding-bottom: 16px;
        -webkit-overflow-scrolling: touch;
        gap: 16px;
    }
    .benefits-grid::-webkit-scrollbar {
        height: 6px;
    }
    .benefits-grid::-webkit-scrollbar-thumb {
        background-color: var(--color-primary);
        border-radius: 4px;
    }
    .benefits-grid .benefit-item {
        flex: 0 0 85%;
        scroll-snap-align: center;
    }
}