/* --- Global Styles & Variables --- */
:root {
    --primary-color: #005A9C; /* A professional blue */
    --secondary-color: #00A9E0; /* A lighter, vibrant blue */
    --dark-color: #2c3e50;
    --light-color: #f4f4f4;
    --text-color: #333;
    --white-color: #ffffff;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: var(--white-color);
}

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

h1, h2, h3 {
    color: var(--dark-color);
    margin-top: 0;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; text-align: center; margin-bottom: 40px; }
h3 { font-size: 1.4rem; }
p { margin-bottom: 1rem; }

a {
    color: var(--primary-color);
    text-decoration: none;
}

.section-bg {
    background-color: var(--light-color);
    padding: 60px 0;
}

section {
    padding: 60px 0;
}

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.cta-button {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: var(--primary-color);
}

/* --- Header & Navigation --- */
.main-header {
    background: var(--white-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 40px;
}

.main-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
}

.main-nav ul li {
    margin-left: 25px;
}

.main-nav ul li a {
    color: var(--dark-color);
    font-weight: bold;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* --- Hero Banner --- */
.hero-banner {
    background: url('/images/backgrounds/hero-banner-bg.svg') no-repeat center center/cover;
    color: var(--white-color);
    text-align: center;
    padding: 120px 0;
}
.hero-banner h1 { color: var(--white-color); }
.hero-banner p { font-size: 1.2rem; max-width: 600px; margin: 20px auto 30px auto;}

/* --- Why Choose Us --- */
.feature-card {
    text-align: center;
    padding: 20px;
}
.feature-icon {
    height: 60px;
    margin-bottom: 15px;
}

/* --- Core Products --- */
.category-card {
    background: var(--white-color);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.category-card img { height: 70px; margin-bottom: 20px; }
.category-card h3 { margin-bottom: 10px; }

/* --- Solutions Showcase --- */
.section-subtitle { text-align: center; margin-top: -30px; margin-bottom: 40px; color: #666; }
.solution-card {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 20px;
    text-align: center;
    font-weight: bold;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
}

/* --- Final CTA --- */
.final-cta { text-align: center; }
.final-cta h2 { font-size: 2rem; }
.final-cta p { max-width: 600px; margin: 0 auto 30px auto; }

/* --- Footer --- */
.main-footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 40px 0 20px 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}
.footer-column h4 {
    color: var(--white-color);
    border-bottom: 1px solid var(--secondary-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}
.footer-column ul { list-style: none; padding: 0; }
.footer-column ul li a { color: var(--light-color); }
.copyright {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: 20px;
    font-size: 0.9em;
}
.copyright a { color: var(--secondary-color); }

/* --- Responsive Design --- */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    
    .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .main-header .container {
        flex-direction: column;
    }
    
    .main-nav { margin-top: 15px; }
    .main-nav ul { flex-wrap: wrap; justify-content: center; }
    .main-nav ul li { margin: 5px 10px; }
    
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
}