:root {
    --primary-color: #003366; /* Deep Navy */
    --accent-color: #D35400; /* Safety Orange */
    --text-dark: #1A1A1A;
    --text-light: #555555;
    --bg-light: #F4F6F8;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --shadow-soft: 0 5px 15px rgba(0,0,0,0.05);
    --shadow-hover: 0 10px 25px rgba(0,0,0,0.1);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease-out;
}

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

.loader-content h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--primary-color);
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-weight: 700;
}

.progress-bar {
    width: 200px;
    height: 4px;
    background: #e0e0e0;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: 2px;
}

.progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--accent-color);
    animation: loadProgress 2s ease-in-out forwards;
}

@keyframes loadProgress {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Header & Nav */
header {
    background: var(--white);
    box-shadow: var(--shadow-soft);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 0;
    font-size: 0.9rem;
}

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

.top-bar .container {
    display: flex;
    justify-content: space-between;
}

.contact-mini a {
    color: var(--white);
    text-decoration: none;
    margin-left: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.3s;
}

.contact-mini a:hover {
    opacity: 0.8;
}

nav {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--primary-color);
    line-height: 1;
}

.brand-tagline {
    font-size: 0.75rem;
    color: var(--text-light);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s;
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0,51,102,0.8), rgba(0,51,102,0.6)), url('assets/hero_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* Parallax feel */
    display: flex;
    align-items: center;
    color: var(--white);
    margin-top: 100px; /* Offset for fixed header */
}

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

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.btn {
    padding: 15px 40px;
    font-weight: 700;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
    letter-spacing: 1px;
    display: inline-block;
}

.btn-accent {
    background: var(--accent-color);
    color: var(--white);
    border: 2px solid var(--accent-color);
    margin-right: 20px;
}

.btn-accent:hover {
    background: transparent;
    color: var(--accent-color);
}

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

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

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.separator {
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    margin: 0 auto;
}

/* Content Grid */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* About */
.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-light);
}

.about-features li {
    list-style: none;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 500;
    color: var(--text-dark);
}

.about-features i {
    color: var(--accent-color);
}

/* Products */
.card {
    background: var(--white);
    padding: 40px;
    border-radius: 4px;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s, box-shadow 0.3s;
    border-bottom: 4px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-bottom-color: var(--accent-color);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.card-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.bg-light {
    background-color: var(--bg-light);
}

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

/* Contact Strip */
.contact-strip {
    background: var(--primary-color);
    color: var(--white);
    text-align: center;
}

/* Footer */
footer {
    background: #111;
    color: #999;
    padding: 80px 0 30px;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid #333;
}

.footer-brand h4 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-family: var(--font-heading);
}

.footer-col h5 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links li {
    list-style: none;
    margin-bottom: 10px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

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

.contact-row {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.contact-row i {
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    color: #555;
    font-size: 0.8rem;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    width: 60px;
    height: 60px;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0px 5px 20px rgba(0,0,0,0.2);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .nav-links, .top-bar {
        display: none; /* Simplify for mobile, add hamburger logic in JS if needed, or simple stack */
    }
    
    .grid-2, .grid-3, .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 10001;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--accent-color);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.spec-table th, .spec-table td {
    border: 1px solid #eee;
    padding: 12px;
    text-align: left;
    font-size: 0.9rem;
}

.spec-table th {
    background: var(--bg-light);
    color: var(--primary-color);
    font-weight: 600;
}

.spec-table tr:nth-child(even) {
    background: #f9f9f9;
}

/* Pulse Animation for WhatsApp */
@keyframes pulse-btn {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.whatsapp-float {
    animation: pulse-btn 2s infinite;
}

/* Enhanced Hover Card */
.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}