:root {
    /* Colors */
    --primary-color: #2C7DA0;
    --secondary-color: #A8DADC;
    --background-color: #F8F8F8;
    --footer-bg-color: #1A446F;
    --button-color: #4C8CE1;
    --text-color: #333333;
    --light-text-color: #F8F8F8;
    --accent-color: #E0F2F7; /* Derived from section_bg_colors for subtle accents */

    --section-bg-1: #FFFFFF;
    --section-bg-2: #E0F2F7;
    --section-bg-3: #F8F8F8;
    --section-bg-4: #D0EAF4;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Lato', sans-serif;
    --base-font-size: 1rem; /* 16px */
    --line-height-body: 1.7;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --section-padding: 6rem 0;

    /* Borders & Shadows */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-ease: ease-in-out;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--base-font-size);
    line-height: var(--line-height-body);
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: var(--line-height-heading);
    color: var(--primary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.75rem; }
h5 { font-size: 1.5rem; }
h6 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--button-color);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-ease);
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Utility Classes for Spacing (complementing Tailwind) */
.py-section {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.container {
    max-width: 1200px; /* Standard container width */
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    margin-left: auto;
    margin-right: auto;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px); /* Glassmorphism effect */
    background-color: rgba(255, 255, 255, 0.7); /* Semi-transparent background */
    box-shadow: var(--shadow-subtle);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.header .logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.03em;
}

.header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

.header nav li {
    margin-left: var(--spacing-lg);
}

.header nav a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
    transition: color var(--transition-speed) var(--transition-ease);
}

.header nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--button-color);
    transition: width var(--transition-speed) var(--transition-ease);
}

.header nav a:hover::after,
.header nav a.active::after {
    width: 100%;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--base-font-size);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) var(--transition-ease);
    box-shadow: var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 50%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-speed) var(--transition-ease);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background-color: var(--button-color);
    color: var(--light-text-color);
}

.btn-primary:hover {
    background: linear-gradient(45deg, var(--button-color) 0%, #6AAFE6 100%); /* Subtle gradient on hover */
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-subtle);
    transform: translateY(-2px);
}

.btn-accent {
    background-color: var(--accent-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-subtle);
}
.btn-accent:hover {
    background-color: var(--secondary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* Section Backgrounds */
.section-bg-1 { background-color: var(--section-bg-1); }
.section-bg-2 { background-color: var(--section-bg-2); }
.section-bg-3 { background-color: var(--section-bg-3); }
.section-bg-4 { background-color: var(--section-bg-4); }

/* Card Styles */
.card {
    background-color: var(--section-bg-1);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-subtle);
    padding: var(--spacing-lg);
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* Align content to the start */
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.card .icon {
    font-size: 3rem; /* Example size for icons */
    color: var(--button-color);
    margin-bottom: var(--spacing-sm);
    display: block; /* Ensure icon takes its own line */
}

.card h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
    font-size: 1.5rem;
    color: var(--primary-color);
}

.card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-color);
}

/* Footer Styles */
.footer {
    background-image: linear-gradient(to right, var(--footer-bg-color), #1F5A90); /* Subtle gradient */
    color: var(--light-text-color);
    padding: var(--section-padding) 0 var(--spacing-md) 0; /* More padding at bottom for copyright */
    font-size: 0.9rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
}

.footer h4 {
    color: var(--secondary-color);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer ul li {
    margin-bottom: var(--spacing-sm);
}

.footer ul li a {
    color: var(--light-text-color);
    opacity: 0.8;
    transition: opacity var(--transition-speed) var(--transition-ease), color var(--transition-speed) var(--transition-ease);
}

.footer ul li a:hover {
    opacity: 1;
    color: var(--secondary-color);
    text-decoration: none;
}

.footer .social-icons a {
    display: inline-block;
    color: var(--light-text-color);
    font-size: 1.5rem;
    margin-right: var(--spacing-md);
    opacity: 0.8;
    transition: transform var(--transition-speed) var(--transition-ease), opacity var(--transition-speed) var(--transition-ease);
}

.footer .social-icons a:hover {
    transform: translateY(-3px);
    opacity: 1;
    color: var(--secondary-color);
}

.footer .contact-info p {
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.footer .copyright {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: var(--base-font-size);
    transition: border-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="tel"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--button-color);
    box-shadow: 0 0 0 3px rgba(76, 140, 225, 0.2);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }

    .header {
        padding: var(--spacing-xs) var(--spacing-md);
    }
    .header nav {
        display: none; /* Hide nav on mobile; typically handled by a hamburger menu in JS */
    }
    .header .logo {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .footer .social-icons {
        text-align: center;
    }

    .footer .social-icons a {
        margin: 0 var(--spacing-sm);
    }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}