:root {
    --primary-color: #0F52BA;
    --secondary-color: #A2D9CE;
    --background-color: #F0F8FF;
    --footer-bg-color: #0F4C81;
    --button-color: #4CAF50;
    --text-color: #333;
    --heading-color: #0F3A70;
    --accent-color: #6CCDAF; /* Derived from secondary for highlights */
    --glass-bg: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.1);

    --section-bg-1: #E6F7FF;
    --section-bg-2: #D4EDDA;
    --section-bg-3: #F8F8FF;
    --section-bg-4: #C2DFFF;
    --section-bg-5: #E0FFFF;

    --font-family-sans: 'Roboto', sans-serif;
    --font-family-serif: 'Merriweather', serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --spacing-unit: 1rem;
    --transition-speed: 0.3s ease-in-out;
}

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

body {
    font-family: var(--font-family-sans);
    line-height: 1.7;
    color: var(--text-color);
    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-family-serif);
    color: var(--heading-color);
    margin-top: 1.5em;
    margin-bottom: 0.8em;
    line-height: 1.2;
}

h1 {
    font-size: 3.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

h4 {
    font-size: 1.6rem;
    font-weight: 600;
}

p {
    margin-bottom: 1.2em;
}

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

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

ul, ol {
    margin-bottom: 1.2em;
    padding-left: 1.5em;
}

li {
    margin-bottom: 0.5em;
}

/* Layout & Sections */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

section {
    padding: calc(4 * var(--spacing-unit)) 0;
    position: relative;
    overflow: hidden; /* For potential background effects */
}

section:nth-of-type(odd) {
    background-color: var(--section-bg-1);
}

section:nth-of-type(even) {
    background-color: var(--section-bg-3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8em 1.8em;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 15px var(--glass-shadow);
}

.btn-primary {
    background-color: var(--button-color);
    color: white;
    filter: brightness(1); /* Initial state for hover effect */
}

.btn-primary:hover {
    background-color: var(--button-color);
    filter: brightness(1.15); /* Subtle brighten on hover */
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 82, 186, 0.2);
}

/* Cards & Glassmorphism Elements */
.card {
    background: var(--glass-bg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 var(--glass-shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: calc(2 * var(--spacing-unit));
    margin-bottom: calc(2 * var(--spacing-unit));
}

.card-hover-effect:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 var(--glass-shadow);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

/* Forms */
.form-group {
    margin-bottom: calc(1.5 * var(--spacing-unit));
}

.form-group label {
    display: block;
    margin-bottom: 0.5em;
    font-weight: 600;
    color: var(--heading-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 0.8em 1em;
    border: 1px solid var(--secondary-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--glass-bg);
    color: var(--text-color);
    font-family: var(--font-family-sans);
    font-size: 1rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    box-sizing: border-box;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Header & Footer */
.header {
    background-color: var(--primary-color);
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header .logo {
    font-family: var(--font-family-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.header .nav a {
    color: white;
    margin-left: 1.5rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.header .nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-speed);
}

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

.footer {
    background-color: var(--footer-bg-color);
    color: rgba(255, 255, 255, 0.8);
    padding: calc(3 * var(--spacing-unit)) 0;
    text-align: center;
    font-size: 0.9rem;
}

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

.footer a:hover {
    color: white;
    text-decoration: underline;
}

/* Alpine.js specific styles */
[x-cloak] {
    display: none !important;
}

/* Utility Classes for Spacing */
.mt-sm { margin-top: var(--spacing-unit); }
.mb-sm { margin-bottom: var(--spacing-unit); }
.mt-md { margin-top: calc(2 * var(--spacing-unit)); }
.mb-md { margin-bottom: calc(2 * var(--spacing-unit)); }
.mt-lg { margin-top: calc(4 * var(--spacing-unit)); }
.mb-lg { margin-bottom: calc(4 * var(--spacing-unit)); }
.py-md { padding-top: calc(2 * var(--spacing-unit)); padding-bottom: calc(2 * var(--spacing-unit)); }

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

    h2 {
        font-size: 2rem;
    }

    .header .container {
        flex-direction: column;
        text-align: center;
    }

    .header .logo {
        margin-bottom: 1rem;
    }

    .header .nav a {
        margin: 0 0.8rem;
        display: inline-block;
    }

    section {
        padding: calc(2 * var(--spacing-unit)) 0;
    }
}

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

    h2 {
        font-size: 1.7rem;
    }

    .btn {
        width: 100%;
        padding: 1em 1.5em;
    }
}

/* Environmental Consciousness Visuals - Subtle & Calming */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top left, rgba(162, 217, 206, 0.1) 0%, transparent 40%),
                radial-gradient(circle at bottom right, rgba(15, 82, 186, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Highlight for eco-friendly content */
.eco-highlight {
    background-color: var(--secondary-color);
    color: var(--heading-color);
    padding: 0.2em 0.5em;
    border-radius: var(--border-radius-sm);
    display: inline-block;
    font-weight: 500;
}

/* Subtle animation for elements on load or visibility */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Example of how to use a section background from the list */
.section-about {
    background-color: var(--section-bg-2); /* D4EDDA */
}

.section-services {
    background-color: var(--section-bg-4); /* C2DFFF */
}

.section-contact {
    background-color: var(--section-bg-5); /* E0FFFF */
}

/* Placeholder for potential custom animations based on theme */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.02); opacity: 0.9; }
    100% { transform: scale(1); opacity: 1; }
}

.animated-element {
    animation: pulse 2s infinite ease-in-out;
}

/* Focus states for accessibility */
*:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
    border-radius: var(--border-radius-sm);
}

/* Image styling */
img {
    max-width: 100%;
    height: auto;
    display: block; /* Remove extra space below images */
    border-radius: var(--border-radius-md);
}

/* Specific styling for hero or banner images */
.hero-image {
    width: 100%;
    height: 400px; /* Example fixed height */
    object-fit: cover;
    object-position: center;
    border-radius: 0; /* No rounded corners for full-width hero */
}

/* For Alpine.js transitions */
.transition-opacity {
    transition: opacity 0.3s ease-in-out;
}
.opacity-0 { opacity: 0; }
.opacity-100 { opacity: 1; }

.transition-transform {
    transition: transform 0.3s ease-in-out;
}
.translate-y-full { transform: translateY(100%); }
.translate-y-0 { transform: translateY(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;
    }
}