:root {
    /* Colors */
    --primary-color: #0F4C81;
    --secondary-color: #73A8D3;
    --background-color: #1A202C;
    --footer-bg-color: #0D1117;
    --text-color-light: #E2E8F0;
    --text-color-dark: #A0AEC0;
    --accent-color: #73A8D3; /* Using secondary for accent as per request */
    --border-color: rgba(255, 255, 255, 0.1);

    /* Section Backgrounds */
    --section-bg-1: #1A202C;
    --section-bg-2: #2D3748;
    --section-bg-3: #1A202C;
    --section-bg-4: #2D3748;

    /* Typography */
    --font-family-heading: 'Poppins', sans-serif;
    --font-family-body: 'Roboto', sans-serif;
    --font-size-base: 1rem;
    --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;

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

    /* Shadows */
    --shadow-subtle: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-elevated: 0 10px 15px rgba(0, 0, 0, 0.2);
}

/* 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(--text-color-light);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scroll from animations */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    color: var(--text-color-light);
    line-height: var(--line-height-heading);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.05em;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
}

h3 {
    font-size: 1.8rem;
}

h4 {
    font-size: 1.4rem;
}

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

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

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

ul, ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* Utility Classes for Layout and Spacing (complementing Tailwind) */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.section-padding {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

/* 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);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family-heading);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) var(--transition-easing);
    box-shadow: var(--shadow-subtle);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Cards */
.card {
    background-color: var(--section-bg-2); /* Slightly lighter than background */
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing);
}

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

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-color-dark);
    font-family: var(--font-family-heading);
    font-weight: 500;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.05); /* Semi-transparent for modern look */
    color: var(--text-color-light);
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    transition: all var(--transition-speed) var(--transition-easing);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.2); /* Focus ring */
}

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

/* Footer */
footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color-dark);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

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

/* Scroll Animations (Example - can be expanded with JS for more control) */
/* Fade-in up effect */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--transition-easing), transform 0.6s var(--transition-easing);
}

.fade-in-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Media Queries for responsiveness */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .container {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

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

    h2 {
        font-size: 1.7rem;
    }

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

/* Font Imports (example, should be linked in HTML head) */
/* @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&family=Roboto:wght@400;500&display=swap'); */


/* 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;
    }
}