:root {
    --primary-blue: #0033cc;
    --dark-blue: #002288;
    --black: #1a1a1a;
    --light-gray: #f9f9f9;
    --white: #ffffff;
    --text-color: #4a4a4a;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}
body {
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}
html {
    scroll-behavior: smooth;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--black);
}
/* Header */
header {
    background-color: var(--white);
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.5rem 0;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo img {
    height: 70px;
    object-fit: contain;
}
nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2rem;
}
nav a {
    text-decoration: none;
    color: var(--black);
    font-weight: 600;
    transition: color 0.3s;
}
nav a:hover {
    color: var(--primary-blue);
}
.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    display: inline-block;
}
.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    border: 2px solid var(--primary-blue);
}
.btn-primary:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-2px);
}
.btn-outline {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
}
.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}
/* Hero */
.hero {
    background: linear-gradient(rgba(0, 34, 136, 0.8), rgba(26, 26, 26, 0.8)), url('https://images.unsplash.com/photo-1613665813446-82a78c468a1d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    color: var(--white);
    padding: 8rem 0;
    text-align: center;
}
.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--white);
}
.hero h1 span {
    font-size: 2rem;
    font-weight: 400;
    font-style: italic;
    color: #e6f0ff;
}
.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
/* About */
.about {
    padding: 6rem 0;
    background-color: var(--light-gray);
}
.subtitle {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem auto;
    font-size: 1.1rem;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}
.feature-card {
    background: var(--white);
    padding: 2.5rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
    transition: transform 0.3s;
    border-bottom: 4px solid transparent;
}
.feature-card:hover {
    transform: translateY(-10px);
    border-bottom: 4px solid var(--primary-blue);
}
.feature-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}
.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--black);
}
/* Services */
.services {
    padding: 6rem 0;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.service-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border: 1px solid #eaeaea;
    border-radius: 12px;
    transition: all 0.3s;
}
.service-item:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border-color: var(--primary-blue);
}
.service-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}
.service-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--black);
}
/* Contact */
.contact {
    padding: 6rem 0;
    background-color: var(--primary-blue);
    color: var(--white);
    text-align: center;
}
.contact h2 {
    color: var(--white);
}
.contact > .container > p {
    margin-bottom: 4rem;
    font-size: 1.1rem;
}
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}
.contact-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}
.contact-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
}
.contact-card h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}
/* Footer */
footer {
    background-color: var(--black);
    color: #888;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}
/* Responsive */
@media (max-width: 768px) {
    nav ul {
        display: none; 
    }
    .hero h1 {
        font-size: 2.5rem;
    }
}