/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

/* Header & Navbar */
header {
    background-color: #1a252f;
    color: #fff;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(26, 37, 47, 0.8), rgba(26, 37, 47, 0.8)), url('https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&q=80') center/cover;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-cta {
    background-color: #3498db;
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: background 0.3s;
}

.btn-cta:hover {
    background-color: #2980b9;
}

/* General Sections */
section {
    padding: 100px 20px;
    text-align: center;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #1a252f;
}

/* Services Section */
.services-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    width: 320px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.service-card h3 {
    color: #3498db;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2rem;
    color: #555;
}

/* Contact Section */
form {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.input-group {
    margin-bottom: 20px;
}

input, textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #3498db;
}

.btn-submit {
    background-color: #1a252f;
    color: #fff;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: bold;
    width: 100%;
    transition: background 0.3s;
}

.btn-submit:hover {
    background-color: #2c3e50;
}

/* Responsive Design (Media Queries) */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 15px;
    }
    .nav-links {
        margin-top: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .nav-links li {
        margin: 5px 15px;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    section {
        padding: 60px 20px;
    }
}