:root {
    /* Colors */
    --color-primary: #002B5B; /* Dark Blue */
    --color-secondary: #FF7F00; /* Orange */
    --color-background: #E0FFFF; /* Light Cyan */
    --color-footer-bg: #001D3D; /* Even Darker Blue */
    --color-button: #FF7F00; /* Orange */
    --color-text-light: #F8F8F8; /* Near White */
    --color-text-dark: #333333; /* Dark Grey */
    --color-accent-hover: #FFA500; /* Brighter Orange */

    /* Section Backgrounds */
    --section-bg-1: #F8F8FF; /* Ghost White */
    --section-bg-2: #E6F7FF; /* Light Sky Blue */
    --section-bg-3: #D0EEFF; /* Light Steel Blue */
    --section-bg-4: #AFE8FF; /* Pale Blue */
    --section-bg-5: #C6E2FF; /* Light Blue */

    /* Typography */
    --font-heading: 'Open Sans', sans-serif;
    --font-body: 'Lato', sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.7;

    /* Spacing */
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Border Radius */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;

    /* Glassmorphism Effect */
    --glass-blur: 8px;
    --glass-bg-opacity: 0.2; /* 20% opacity */
    --glass-border-color: rgba(255, 255, 255, 0.3);

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.8rem;
    font-weight: 700;
}

h3 {
    font-size: 2.2rem;
    font-weight: 600;
}

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

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

a:hover {
    color: var(--color-secondary);
}

/* Utility Classes for Layout and Spacing (assuming Tailwind is present for most) */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden; /* Ensures background patterns don't bleed */
}

.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);
}

.section-bg-5 {
    background-color: var(--section-bg-5);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: var(--border-radius-sm); /* Rounded corners */
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-ease);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    color: var(--color-text-light); /* Default text color for buttons */
    background: var(--color-button); /* Initial background */
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.1); /* Subtle inner and outer shadow */
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--color-secondary) 0%, var(--color-accent-hover) 100%);
    opacity: 0;
    transition: opacity var(--transition-speed) var(--transition-ease);
    z-index: 1;
}

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

.btn span {
    position: relative;
    z-index: 2;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1), 0 6px 12px rgba(0, 0, 0, 0.15);
    color: var(--color-text-light); /* Ensure text color remains light on hover */
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 255, 255, var(--glass-bg-opacity)); /* Initial glassmorphism background */
    backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border-color);
    transition: background-color var(--transition-speed) var(--transition-ease),
                border-bottom-color var(--transition-speed) var(--transition-ease);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.9); /* More opaque on scroll */
    backdrop-filter: blur(calc(var(--glass-blur) / 2)); /* Slightly less blur */
    border-bottom-color: rgba(0, 43, 91, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header .nav-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    position: relative;
}

.header .nav-link:hover {
    color: var(--color-secondary);
}

.header .nav-link::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: all var(--transition-speed) var(--transition-ease);
    transform: translateX(-50%);
}

.header .nav-link:hover::after {
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-text-light);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
    /* Subtle hexagonal pattern overlay */
    background-image:
        radial-gradient(circle at 100% 150%, var(--color-primary) 0%, transparent 15%),
        radial-gradient(circle at 0% 150%, var(--color-primary) 0%, transparent 15%),
        radial-gradient(circle at 100% 50%, var(--color-primary) 0%, transparent 15%),
        radial-gradient(circle at 0% 50%, var(--color-primary) 0%, transparent 15%),
        radial-gradient(circle at 100% 0%, var(--color-primary) 0%, transparent 15%),
        radial-gradient(circle at 0% 0%, var(--color-primary) 0%, transparent 15%),
        repeating-linear-gradient(120deg, var(--color-primary) 1px, var(--color-footer-bg) 1px, var(--color-footer-bg) 8px);
    background-size: 8px 14px; /* Adjust size for pattern density */
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: flex-start;
}

.footer-section {
    flex: 1;
    min-width: 200px;
    margin: 1.5rem;
    text-align: left;
}

.footer-section h4 {
    color: var(--color-secondary); /* Tertiary color for highlights */
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.footer-section p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: var(--color-text-light);
    font-size: 0.95rem;
    transition: color var(--transition-speed) var(--transition-ease), transform var(--transition-speed) var(--transition-ease);
    display: inline-block; /* For transform effect */
}

.footer-section ul li a:hover {
    color: var(--color-secondary);
    transform: translateX(5px); /* Animated on hover */
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

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

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.8rem;
    }

    .header {
        padding: 0.8rem var(--spacing-md);
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
    }

    .footer-section {
        margin: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.7rem;
    }

    .btn {
        padding: 0.7rem 1.5rem;
        font-size: 1rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }
}


/* 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;
    }
}