:root {
    /* Colors */
    --primary-color: #206DFF;
    --secondary-color: #6AF1FF;
    --background-color: #EEF5FF;
    --footer-bg-color: #1A202C;
    --button-color: #FF5722;
    --text-color-dark: #1A202C;
    --text-color-light: #FFFFFF;
    --accent-color: var(--button-color); /* Using button color as a strong accent */

    --section-bg-1: #FFFFFF;
    --section-bg-2: #F7FAFC;
    --section-bg-3: #E8F1FF;

    /* Typography */
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Open Sans', 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: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Borders & Shadows */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;

    --shadow-soft: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-elevated: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-button: 0 6px 18px rgba(255, 87, 34, 0.3);

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

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-size: 16px; /* Ensures consistent base for rem units */
}

body {
    font-family: var(--font-body);
    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;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-heading);
    color: var(--text-color-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em; /* Slightly tighter for modern feel */
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

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

h3 {
    font-size: 2rem;
    font-weight: 600;
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
}

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

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

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

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

.mb-section {
    margin-bottom: var(--spacing-xxl);
}

/* Header Styling (Fixed with Glassmorphism) */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.7); /* Slightly opaque white */
    backdrop-filter: blur(10px); /* Glassmorphism effect */
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-sm) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(var(--primary-color), 0.1); /* Subtle definition */
}

.header-logo {
    height: 40px; /* Adjust as needed */
    /* Placeholder for a clean logo - assume it's an image or SVG */
}

.header-nav a {
    color: var(--text-color-dark);
    font-family: var(--font-heading);
    font-weight: 500;
    margin-left: var(--spacing-lg);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-duration) var(--transition-ease);
    position: relative;
    overflow: hidden;
}

.header-nav a:hover {
    color: var(--primary-color);
    background-color: rgba(var(--primary-color), 0.05);
    text-decoration: none;
}

.header-nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-duration) var(--transition-ease), left var(--transition-duration) var(--transition-ease);
}

.header-nav a:hover::before {
    width: 100%;
    left: 0;
}


/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md); /* Rounded rectangular */
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--transition-duration) var(--transition-ease);
    box-shadow: var(--shadow-button); /* Prominent shadow */
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--button-color) 0%, #FF7043 100%); /* Slight gradient */
    color: var(--text-color-light);
    transform: translateY(0);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #FF7043 0%, var(--button-color) 100%);
    transform: translateY(-2px); /* Subtle hover lift */
    box-shadow: 0 8px 22px rgba(255, 87, 34, 0.4); /* Enhanced shadow on hover */
}

.btn-secondary {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    box-shadow: 0 6px 18px rgba(32, 109, 255, 0.3);
}

.btn-secondary:hover {
    background-color: #1A5FFF;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(32, 109, 255, 0.4);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-button);
}

/* Cards */
.card {
    background-color: var(--section-bg-1);
    border-radius: var(--border-radius-lg); /* Rounded corners */
    box-shadow: var(--shadow-elevated); /* Elevated with soft shadows */
    padding: var(--spacing-xl);
    border: 1px solid rgba(var(--primary-color), 0.05); /* Subtle border for definition */
    transition: transform var(--transition-duration) var(--transition-ease), box-shadow var(--transition-duration) var(--transition-ease);
}

.card:hover {
    transform: translateY(-5px); /* Lift effect on hover */
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15); /* More pronounced shadow */
}

/* 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);
}

/* Form Elements (basic styling, Tailwind will handle layout) */
input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(var(--primary-color), 0.2);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--text-color-dark);
    background-color: var(--section-bg-1);
    transition: all var(--transition-duration) var(--transition-ease);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color), 0.2);
}

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

/* Footer Styling */
footer {
    background-color: var(--footer-bg-color);
    color: rgba(var(--text-color-light), 0.7);
    padding: var(--spacing-xl) var(--spacing-xxl);
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.6;
}

footer a {
    color: var(--secondary-color);
    margin: 0 var(--spacing-xs);
}

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

/* Icons (assuming filled, modern icons via a library like Font Awesome or Heroicons) */
.icon {
    display: inline-block;
    vertical-align: middle;
    width: 1.2em; /* Adjust size as needed */
    height: 1.2em;
    fill: currentColor; /* Inherit color from parent */
    margin-right: var(--spacing-xs);
}

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

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.6rem;
    }

    .header {
        flex-direction: column;
        padding: var(--spacing-sm);
    }

    .header-nav {
        margin-top: var(--spacing-sm);
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .header-nav a {
        margin: var(--spacing-xs) var(--spacing-sm);
    }

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

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

    h2 {
        font-size: 1.75rem;
    }

    .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }

    .card {
        padding: var(--spacing-md);
    }
}

/* Keyframe animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.8s var(--transition-ease) forwards;
    opacity: 0; /* Hidden by default until animation runs */
}


/* 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;
    }
}