:root {
    --primary-color: #570ac9; /* Gold */
    --secondary-color: #121212; /* Black */
    --text-color: #fff;
    --background-color: #f5f5f5;
    --font-family: 'Poppins', sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    color: var(--secondary-color);
    background-color: var(--background-color);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background-color: var(--secondary-color);
    color: var(--text-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.button-container {
    margin-right: auto;
    margin-left: 1rem;
}

.logo {
    font-size: 1.75rem;
    color: var(--primary-color);
    font-weight: 500;
}

.nav a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
    font-size: 1rem;
    transition: color 0.3s ease;
}

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

.btn-secondary {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: #f0c74f;
    transform: translateY(-3px);
}

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
                url('assets/img/logorb.png') center/cover no-repeat;
    color: var(--text-color);
    text-align: center;
    padding: 7rem 1rem;
    position: relative;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #f0c74f;
    transform: translateY(-3px);
}

.services, .about, .contact {
    padding: 2rem 0;
    text-align: center;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}


.certification {
    padding: 3rem 0;
    text-align: center;
    background-color: #f5f5f5;
}

.certification h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.certification p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.certification-logo {
    max-width: 200px; /* Keep the logo size reasonable */
    height: auto;
    margin-top: 1rem;
}


footer {
    background-color: var(--secondary-color);
    color: var(--text-color);
    text-align: center;
    padding: 1rem 0;
}

/* Media Query for Larger Screens */
@media screen and (min-width: 768px) {
    .hero h1 {
        font-size: 4rem;
    }
    
    .hero p {
        font-size: 1.5rem;
    }
}