:root {
    /* Colors */
    --primary-color: #1E824C; /* Deep Green - Banknote Primary */
    --secondary-color: #BDC3C7; /* Light Gray - Banknote Secondary */
    --background-color: #E0E0E0; /* Soft Gray - Paper-like Background */
    --footer-bg-color: #2C3E50; /* Dark Blue-Gray - Professional Footer */
    --button-color: #27AE60; /* Vibrant Green - Action Button */
    --accent-color: #3498DB; /* Teal/Turquoise for Header Gradient */
    --text-color-dark: #2C3E50; /* Dark text for readability */
    --text-color-light: #F8F8F8; /* Light text for dark backgrounds */

    /* Section Backgrounds - Inspired by banknote textures/shades */
    --section-bg-1: #E8F5E9; /* Light Mint Green */
    --section-bg-2: #DCE7EB; /* Light Blue-Gray */
    --section-bg-3: #B2DFDB; /* Medium Teal-Green */
    --section-bg-4: #C8E6C9; /* Pale Green */
    --section-bg-5: #CFD8DC; /* Cooler Light Gray */

    /* Typography */
    --font-family-primary: 'Roboto', sans-serif;
    --font-size-base: 1.125rem; /* 18px for better readability */
    --line-height-base: 1.7; /* Generous line height */

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

    /* Borders & Shadows */
    --border-radius-base: 8px;
    --shadow-medium: 0px 4px 12px rgba(0, 0, 0, 0.1); /* Soft, professional shadow */
    --shadow-button: 0px 6px 15px rgba(0, 0, 0, 0.2); /* More pronounced for buttons */
    --shadow-header: 0px 3px 8px rgba(0, 0, 0, 0.15); /* Subtle header shadow */

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

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

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color-dark);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scroll due to animations */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-primary);
    color: var(--primary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    letter-spacing: -0.02em; /* Slight tightening for modern look */
}

h1 {
    font-size: 3.5rem; /* Large and impactful */
    font-weight: 700;
    color: var(--text-color-dark); /* Darker for strong presence */
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
}

h3 {
    font-size: 1.8rem;
    font-weight: 500;
}

p {
    margin-bottom: 1.25rem;
}

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

a:hover {
    color: var(--button-color);
    border-bottom: 2px solid var(--button-color);
}

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

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

/* Header Styles */
.header {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    box-shadow: var(--shadow-header);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom-left-radius: var(--border-radius-base);
    border-bottom-right-radius: var(--border-radius-base);
}

.header .logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color-light);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--spacing-md);
}

.header nav a {
    color: var(--text-color-light);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-base);
    transition: background-color var(--transition-speed) var(--transition-ease), transform var(--transition-speed) var(--transition-ease);
}

.header nav a:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    color: var(--text-color-light); /* Keep text light on hover */
    border-bottom: none; /* Remove underline on hover for header links */
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.2rem;
    border: none;
    border-radius: var(--border-radius-base);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    color: var(--text-color-light);
    background: linear-gradient(135deg, darken(var(--button-color), 10%) 0%, var(--button-color) 100%);
    box-shadow: var(--shadow-button);
    transition: background var(--transition-speed) var(--transition-ease),
                transform var(--transition-speed) var(--transition-ease),
                box-shadow var(--transition-speed) var(--transition-ease);
    position: relative;
    overflow: hidden;
}

/* Darken function for CSS variable (not native CSS, but common in preprocessors) */
/* For pure CSS, you'd define the darker color as a separate variable if needed often */
/* Here, I'm assuming a manual adjustment or a CSS preprocessor is used for darken() */
/* As a pure CSS alternative for the gradient: */
.btn {
    background: linear-gradient(135deg, #1A7C49 0%, var(--button-color) 100%); /* #1A7C49 is a darker shade of #27AE60 */
}


.btn:hover {
    background: linear-gradient(135deg, var(--button-color) 0%, lighten(var(--button-color), 10%) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.25);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
}

/* 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);
}

/* Footer Styles */
.footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    text-align: center;
    border-top-left-radius: var(--border-radius-base);
    border-top-right-radius: var(--border-radius-base);
}

.footer p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer .social-icons {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer .social-icons a {
    color: var(--text-color-light);
    font-size: 1.5rem;
    margin: 0 0.7rem;
    transition: color var(--transition-speed) var(--transition-ease), transform var(--transition-speed) var(--transition-ease);
}

.footer .social-icons a:hover {
    color: var(--button-color);
    transform: translateY(-3px);
    border-bottom: none;
}

/* Card Styles (Example) */
.card {
    background-color: white;
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-medium);
    padding: var(--spacing-md);
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.15);
}

/* AOS (Animate On Scroll) default styles - these are usually handled by the library itself
   but we can add custom transforms here that AOS might pick up */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* Custom AOS variants for fade-in, scale-up */
[data-aos="fade-up"] {
    transform: translateY(20px);
}
[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}
[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

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

    h2 {
        font-size: 2rem;
    }

    .header nav ul {
        flex-direction: column;
        align-items: center;
        margin-top: var(--spacing-md);
    }

    .header nav li {
        width: 100%;
        text-align: center;
    }

    .header nav a {
        display: block;
        padding: 0.8rem;
    }

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

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

    h2 {
        font-size: 1.7rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}


/* 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;
    }
}