:root {
    /* Colors */
    --color-primary: #0F4C81;
    --color-secondary: #A9CCE3;
    --color-background: #E0E6F0;
    --color-footer-bg: #0A2463;
    --color-button: #FCBF49;
    --color-button-text: #0F4C81;
    --color-header-text: #FFFFFF;
    --color-accent: #FCBF49; /* Using button color as accent */

    --section-bg-1: #E0E6F0;
    --section-bg-2: #D4DCEC;
    --section-bg-3: #BFC9D9;
    --section-bg-4: #A2B2C9;
    --section-bg-5: #869BB0;
    --section-bg-6: #6D849B;

    /* Typography */
    --font-family-headlines: 'Oswald', sans-serif;
    --font-family-body: 'Roboto', sans-serif;
    --font-family-header: 'Montserrat', sans-serif;

    --font-size-base: 1rem; /* 16px */
    --line-height-base: 1.7;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

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

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

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

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-headlines);
    color: var(--color-primary);
    line-height: var(--line-height-heading);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em; /* Subtle tightening for headlines */
}

h1 {
    font-size: 3.5rem; /* 56px */
    font-weight: 700;
}

h2 {
    font-size: 2.5rem; /* 40px */
    font-weight: 600;
}

h3 {
    font-size: 1.875rem; /* 30px */
    font-weight: 600;
}

h4 {
    font-size: 1.5rem; /* 24px */
    font-weight: 500;
}

h5 {
    font-size: 1.25rem; /* 20px */
    font-weight: 500;
}

h6 {
    font-size: 1rem; /* 16px */
    font-weight: 500;
}

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

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

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

/* 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);
}

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

.section-bg-6 {
    background-color: var(--section-bg-6);
}

/* Header Styling (Glassmorphism) */
.header {
    background-color: rgba(255, 255, 255, 0.1); /* Light glassmorphism base */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* For Safari */
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .nav-link {
    font-family: var(--font-family-header);
    color: var(--color-header-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.header .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: translateX(-100%);
    transition: transform var(--transition-speed) var(--transition-timing);
}

.header .nav-link:hover::before,
.header .nav-link.active::before {
    transform: translateX(0);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-button);
    color: var(--color-button-text);
    font-family: var(--font-family-body);
    font-weight: 600;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius-full); /* Rounded-full shape */
    box-shadow: var(--shadow-md); /* MD shadow by default */
    transition: all var(--transition-speed) var(--transition-timing);
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    transform: scale(1.05); /* Hover effect */
    box-shadow: var(--shadow-lg); /* Larger shadow on hover */
    background-color: var(--color-accent); /* Slight color shift on hover */
}

/* Cards (Example) */
.card {
    background-color: #FFFFFF;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
}

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

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

.text-primary {
    color: var(--color-primary);
}

.text-secondary {
    color: var(--color-secondary);
}

.text-accent {
    color: var(--color-accent);
}

/* Subtle animations - Example for AOS or ScrollReveal */
/* (These would typically be handled by the JS libraries, but here's a conceptual CSS for an element revealing itself) */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--transition-timing), transform 0.6s var(--transition-timing);
}

.fade-in-up.aos-animate { /* or .scrollreveal-visible */
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-secondary);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    font-family: var(--font-family-body);
}

.footer a {
    color: var(--color-secondary);
    transition: color var(--transition-speed) var(--transition-timing);
}

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

/* Responsive Adjustments */
@media (min-width: 768px) {
    h1 {
        font-size: 4.5rem; /* 72px */
    }

    h2 {
        font-size: 3rem; /* 48px */
    }

    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        box-shadow: var(--shadow-lg); /* Larger shadow for md screens and up */
    }
}

@media (min-width: 1024px) {
    h1 {
        font-size: 5.5rem; /* 88px */
    }

    h2 {
        font-size: 3.5rem; /* 56px */
    }

    .btn {
        box-shadow: var(--shadow-xl); /* Even larger shadow for lg screens and up */
    }
}


/* 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;
    }
}