:root {
    --primary-color: #003366;
    --secondary-color: #FF9900;
    --accent-color: #00509d;
    --text-color: #333;
    --light-text: #fff;
    --bg-light: #f4f7f6;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background 0.3s ease;
    padding: 20px 0;
}

header.scrolled {
    background: rgba(0, 51, 102, 0.9);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: var(--shadow);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--light-text);
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: var(--secondary-color);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--secondary-color);
}

nav ul li a.highlight-link {
    color: var(--secondary-color);
    font-weight: 700;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 51, 102, 0.6), rgba(0, 51, 102, 0.6)), url('https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--light-text);
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--secondary-color);
    color: var(--light-text);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn:hover {
    background: transparent;
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* Sections */
section {
    padding: 100px 0;
}

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

.section-title h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title .underline {
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    margin: 0 auto;
}

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

.service-card {
    background: var(--light-text);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card i {
    font-size: 48px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

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

/* Advantages */
.advantages {
    background: var(--primary-color);
    color: var(--light-text);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    align-items: center;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.advantage-item div {
    margin-left: 20px;
}

.advantage-item h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--secondary-color);
}



/* Stats */
.stats {
    background: var(--bg-light);
    text-align: center;
}

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

.stat-item h2 {
    font-size: 48px;
    color: var(--primary-color);
}

.stat-item p {
    color: #666;
    font-weight: 500;
}

/* Footer */
footer {
    background: #001a33;
    color: #aaa;
    padding: 80px 0 20px;
}

footer .container {
    flex-direction: column;
    align-items: stretch;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    color: var(--light-text);
    margin-bottom: 25px;
}

.footer-col p {
    margin-bottom: 15px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
}

.footer-col p i {
    width: 25px;
    margin-top: 4px;
    flex-shrink: 0;
    color: var(--secondary-color);
}

.social-links a {
    color: var(--light-text);
    font-size: 20px;
    margin-right: 15px;
    transition: color 0.3s;
}

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

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
    text-align: center;
    font-size: 14px;
    width: 100%;
}

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

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

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

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 40px;
    }

    nav {
        display: none;
    }
}