:root {
    --primary: #009ffd;
    --secondary: #2a2a72;
    --dark: #0a0a23;
    --light: #ffffff;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: #333;
    scroll-behavior: smooth;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
    background: var(--dark);
    color: var(--light);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header .logo {
    font-size: 24px;
    font-weight: bold;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    color: var(--light);
    text-decoration: none;
    transition: color 0.3s;
}

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

.hero {
    text-align: center;
    padding: 150px 20px 100px;
    background: linear-gradient(to right, var(--secondary), var(--primary));
    color: var(--light);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background: var(--light);
    color: var(--primary);
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
}

.btn:hover {
    background: var(--dark);
    color: var(--light);
}

.services, .about, .contact {
    padding: 80px 20px;
    text-align: center;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.service {
    padding: 20px;
    background: #f5f5f5;
    border-radius: 10px;
    transition: transform 0.3s;
}

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

.service i {
    font-size: 24px;
    margin-right: 8px;
    color: var(--primary);
}

.toggle-content {
    text-decoration: none;
    color: var(--primary);
    font-size: 18px;
    font-weight: bold;
    display: inline-block;
    transition: 0.3s;
}

.toggle-content:hover {
    color: var(--secondary);
}

.service-content {
    display: none;
    margin-top: 10px;
    text-align: left;
    background: #ffffff;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
    margin: 0 auto;
}

form input, form textarea, form button {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

form button {
    background: var(--primary);
    color: var(--light);
    border: none;
    cursor: pointer;
    transition: 0.3s;
}

form button:hover {
    background: var(--secondary);
}

footer {
    background: var(--dark);
    color: var(--light);
    text-align: center;
    padding: 10px;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s, transform 1s;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}