:root {
    --primary-color: #0056b3;
    --secondary-color: #00a8cc;
    --accent-color: #fca311;
    --text-color: #333;
    --light-text: #666;
    --bg-color: #fff;
    --light-bg: #f8f9fa;
    --dark-bg: #1a1a1a;
    --white: #ffffff;
    --max-width: 1200px;
    --header-height: 70px;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

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

ul {
    list-style: none;
}

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

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 20px;
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

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

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

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    border-radius: 5px;
    padding: 10px 0;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    display: block;
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 0.95rem;
    color: var(--text-color);
    transition: background 0.3s ease, color 0.3s ease;
}

.dropdown-menu li a:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../assets/images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding-top: var(--header-height);
    color: var(--white);
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    text-align: left;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--white);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    color: #e0e0e0;
    margin-bottom: 30px;
    max-width: 600px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #004494;
}

/* Features/Solutions Section */
.section {
    padding: 80px 20px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    text-align: center;
}

.card img {
    height: 80px;
    margin-bottom: 20px;
    object-fit: contain;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 20px 20px;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-col ul li a {
    color: #ccc;
}

.footer-col ul li a:hover {
    color: var(--white);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #888;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Mobile menu implementation needed later */
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}