:root {
    --primary-color: #0d253f;
    --secondary-color: #00a8e8;
    --text-color: #333;
    --light-bg: #f4f4f4;
    --white: #ffffff;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

/* Logo Styles */
.logo-img {
    height: 60px;
    width: auto;
    display: block;
}

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

.nav ul li {
    margin-left: 20px;
}

.nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(13, 37, 63, 0.8), rgba(13, 37, 63, 0.8)), url('https://images.unsplash.com/photo-1557597774-9d273605dfa9?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    height: 80vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #007bb5;
}

/* Sections General */
section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

/* Services */
.services {
    background-color: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    padding: 2rem;
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.service-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* About */
.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Contact */
.contact {
    background-color: var(--primary-color);
    color: var(--white);
}

.contact .section-title {
    color: var(--white);
}

.contact-info {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    text-align: center;
}

.contact-item {
    margin: 1rem;
}

.contact-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background-color: #0a1c30;
    color: var(--white);
    text-align: center;
    padding: 1.5rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }

    .nav ul {
        margin-top: 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .contact-info {
        flex-direction: column;
    }
}