:root {
    --primary-color: #0a4d68;
    --secondary-color: #088395;
    --accent-color: #05bfdb;
    --light-color: #f5f5f5;
    --dark-color: #0b2027;
    --text-color: #333;
    --white-color: #ffffff;
    --font-family: 'Poppins', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--white-color);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
header {
    background: var(--white-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.cta-button {
    background: var(--secondary-color);
    color: var(--white-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.cta-button:hover {
    background: var(--accent-color);
    color: var(--white-color);
}

/* Hero Section */
#hero {
    background: var(--primary-color);
    color: var(--white-color);
    text-align: center;
    padding: 6rem 0;
}

#hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

#hero p {
    font-size: 1.2rem;
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.cta-button-large {
    background: var(--accent-color);
    color: var(--white-color);
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s ease;
}

.cta-button-large:hover {
    background: var(--secondary-color);
}

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

h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white-color);
    border: 1px solid #eee;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    padding: 2rem;
    text-align: center;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.service-card img {
    height: 60px;
    margin-bottom: 1rem;
}

.service-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Testimonials Section */
#testimonials {
    background: var(--light-color);
}

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

.testimonial-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.testimonial-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid var(--accent-color);
}

.quote {
    font-style: italic;
    color: #555;
    margin-bottom: 1rem;
}

.author {
    font-weight: 600;
    color: var(--primary-color);
}

/* Contact Section */
#contact {
    text-align: center;
}

.contact-info {
    font-size: 1.2rem;
    margin-top: 2rem;
}

.contact-info p {
    margin-bottom: 1rem;
}

.contact-info a {
    color: var(--secondary-color);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: var(--dark-color);
    color: var(--light-color);
    text-align: center;
    padding: 1.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simplification for this example. A real site would use a hamburger menu. */
    }

    #hero h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }
}