:root {
    /* Industrial Palette */
    --primary-color: #0d2c54;
    /* Deep Industrial Blue */
    --primary-dark: #071a33;
    --secondary-color: #ff6b00;
    /* Safety Orange */
    --secondary-dark: #e65100;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --bg-light: #f4f6f8;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #2e7d32;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 64px;

    /* Typography */
    --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-weight-bold: 700;
    --font-weight-medium: 500;

    /* Components */
    --btn-radius: 4px;
    /* Industrial feel = slightly squared */
    --card-radius: 8px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --container-max-width: 1200px;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--text-dark);
    line-height: 1.5;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--secondary-color);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-weight: var(--font-weight-bold);
    border-radius: var(--btn-radius);
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 1rem;
    gap: 8px;
    border: none;
}

.btn-primary {
    background-color: var(--secondary-color);
    /* Orange for primary call to action */
    color: white;
}

.btn-primary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-1px);
}

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

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

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

.btn-block {
    width: 100%;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 48px;
}

.header-contact {
    display: none;
    /* Mobile first hidden */
}

@media(min-width: 768px) {
    .header-contact {
        display: flex;
        gap: var(--spacing-md);
    }
}

/* Mobile Sticky CTA */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    display: flex;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.mobile-sticky-cta .btn {
    flex: 1;
    border-radius: 0;
    padding: 16px;
    font-size: 1.1rem;
}

@media(min-width: 768px) {
    .mobile-sticky-cta {
        display: none;
    }
}

/* Hero Section */
.hero {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
    background-image: linear-gradient(rgba(13, 44, 84, 0.9), rgba(13, 44, 84, 0.8)), url('../images/hero-bg-placeholder.jpg');
    /* Need to add a bg pattern or gradient only */
    background-size: cover;
    background-position: center;
}

.hero h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-badges span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Trust Section */
.trust-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media(min-width: 768px) {
    .trust-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.trust-item {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--card-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.trust-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.trust-title {
    font-weight: bold;
    font-size: 0.9rem;
}

/* Product Section */
.product-section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media(min-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.product-category {
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.cat-header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    font-weight: bold;
    text-align: center;
}

.cat-body {
    padding: var(--spacing-md);
}

.cat-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.cat-list li::before {
    content: "•";
    color: var(--secondary-color);
    font-weight: bold;
}

.cat-list li:last-child {
    border-bottom: none;
}

/* Custom Extrusion */
.custom-section {
    background-color: var(--primary-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
    /* Center align for mobile default */
}

.custom-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

@media(min-width: 768px) {
    .custom-wrapper {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
    }
}

/* Commercial Section */
.commercial-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.commercial-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: 1fr;
}

@media(min-width: 768px) {
    .commercial-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.info-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border-top: 4px solid var(--secondary-color);
}

.info-label {
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: bold;
    letter-spacing: 1px;
}

.info-value {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: 8px 0;
}

/* Footer of course */
.footer {
    background-color: #111;
    color: #aaa;
    padding: var(--spacing-xl) 0 var(--spacing-xxl);
    /* Extra padding bottom for mobile cta */
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

@media(min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer {
        padding-bottom: var(--spacing-xl);
    }
}

.footer h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer ul li {
    margin-bottom: 8px;
}

.footer a:hover {
    color: var(--secondary-color);
}

/* Helper for images */
.img-grid-sample {
    display: flex;
    overflow-x: auto;
    gap: 8px;
    margin-top: 10px;
    padding-bottom: 8px;
    /* For scrollbar space */
    scrollbar-width: thin;
}

.img-grid-sample::-webkit-scrollbar {
    height: 4px;
}

.img-grid-sample::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}

.img-grid-sample img {
    border-radius: 4px;
    height: 80px;
    width: 80px;
    /* Fixed width for better scroll */
    object-fit: cover;
    border: 1px solid #eee;
    flex-shrink: 0;
}