/* --- Global Styles & Variables --- */
:root {
    --primary-blue: #0A3D62; /* Dark Blue */
    --accent-blue: #0C7B93; /* Brighter Teal/Blue */
    --light-gray: #f8f9fa;
    --text-color: #343a40;
    --heading-color: var(--primary-blue);
    --base-font-size: 16px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: #fff;
    line-height: 1.7;
    font-size: var(--base-font-size);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

h1 { font-size: 3.5rem; line-height: 1.2; }
h2 { font-size: 2.5rem; margin-bottom: 1rem; }
p { font-weight: 300; margin-bottom: 1rem; }
a { text-decoration: none; color: var(--accent-blue); }

.section-padding {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}
.section-title p {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #6c757d;
}

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

.button {
    display: inline-block;
    background-color: var(--accent-blue);
    color: #fff;
    padding: 12px 28px;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.button:hover {
    background-color: var(--primary-blue);
    transform: translateY(-2px);
}

/* --- Header --- */
header {
    background-color: #fff;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

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

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 25px;
}

nav a {
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--accent-blue);
}

.nav-button {
    padding: 8px 20px;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(10, 61, 98, 0.8), rgba(10, 61, 98, 0.8)), url('https://images.unsplash.com/photo-1574933939929-2030740673f3?q=80&w=2670') no-repeat center center/cover;
    height: 90vh;
    color: #fff;
    display: flex;
    align-items: center;
    padding-top: 80px; /* Offset for fixed header */
}

.hero-content {
    max-width: 60%;
}

.hero h1 {
    color: #fff;
    font-weight: 700;
}

.hero p {
    font-size: 1.1rem;
    font-weight: 300;
    max-width: 550px;
    margin: 1.5rem 0 2rem 0;
}

/* --- Services Section --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    padding: 35px;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.service-card .icon {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* --- About Section --- */
.about-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* --- Industries / Logos Section --- */
.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}
.logo-item img {
    max-height: 50px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: filter 0.3s, opacity 0.3s;
}
.logo-item img:hover {
    filter: grayscale(0%);
    opacity: 1;
}


/* --- Footer --- */
footer {
    background-color: var(--primary-blue);
    color: #fff;
    padding: 60px 0 20px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    padding-bottom: 40px;
}

.footer-column h3, .footer-column h4 {
    color: #fff;
    margin-bottom: 1rem;
}

.footer-column p {
    color: rgba(255,255,255,0.8);
    font-weight: 300;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s;
}

.footer-column a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}


/* --- Responsive Design --- */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    header .container {
        /* Basic mobile nav handling - more complex navs need JavaScript */
        flex-direction: column;
        gap: 10px;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero {
        height: auto;
        padding-top: 150px; /* Adjust for taller header */
        padding-bottom: 60px;
    }
}