/* General Body and Font Styles */
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc; /* Light gray background */
    color: #333;
}

/* Custom Color Palette */
.bg-pr-blue { background-color: #003366; }
.text-pr-blue { color: #003366; }
.border-pr-blue { border-color: #003366; }
.bg-pr-green { background-color: #009975; }
.text-pr-green { color: #009975; }
.border-pr-green { border-color: #009975; }

/* Section Title Styling */
.section-title {
    font-size: 2.25rem; /* text-4xl */
    font-weight: 800; /* font-extrabold */
    color: #003366; /* text-pr-blue */
    margin-bottom: 1rem; /* mb-4 */
    text-align: center; /* text-center */
}
.section-subtitle {
    font-size: 1.125rem; /* text-lg */
    color: #555; /* text-gray-600 */
    margin-bottom: 3rem; /* mb-12 */
    text-align: center; /* text-center */
    max-width: 56rem; /* max-w-3xl */
    margin-left: auto;
    margin-right: auto;
}

/* Header and Navigation Enhancements */
header nav a {
    position: relative;
    transition: color 0.3s ease;
}
header nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #009975; /* pr-green */
    transition: width 0.3s ease;
}
header nav a:hover::after {
    width: 100%;
}

/* Service Card Enhancements */
.service-card-icon {
    background-color: #e0f2f1; /* A light green tint */
    color: #009975; /* pr-green */
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}
.group:hover .service-card-icon {
    transform: scale(1.1);
}

/* Gallery Section Background */
#realisations {
    background-color: #ffffff;
}

/* Form and Button Enhancements */
input[type="text"], input[type="email"], textarea {
    transition: all 0.3s ease;
}
input[type="text"]:focus, input[type="email"]:focus, textarea:focus {
    box-shadow: 0 0 0 3px rgba(0, 153, 117, 0.3);
    border-color: #009975;
}
button[type="submit"] {
    box-shadow: 0 4px 14px 0 rgba(0, 153, 117, 0.39);
}