:root {
    /* Colors */
    --color-primary: #2E8B57; /* Sea Green */
    --color-secondary: #DDAA00; /* Dark Goldenrod */
    --color-accent: #4CAF50; /* Button Green */
    --color-background: #F0F5EE; /* Light Greenish White */
    --color-footer-bg: #3A3A3A; /* Dark Gray */
    --color-text-dark: #333333;
    --color-text-light: #F0F5EE;
    --color-section-bg-1: #E6F2E6;
    --color-section-bg-2: #F8FAF7;
    --color-section-bg-3: #D9EBE0;
    --color-section-bg-4: #EAF6E9;
    --color-section-bg-5: #F3F9F1;

    /* Typography */
    --font-family-main: 'Kanit', Arial, sans-serif;
    --font-size-base: 1.125rem; /* 18px */
    --line-height-base: 1.7;
    --heading-font-weight: 700;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Border Radius */
    --border-radius-base: 8px;

    /* Shadows */
    --shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--heading-font-weight);
    color: var(--color-primary);
    line-height: 1.2;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.05em;
    color: var(--color-secondary); /* Make H1 stand out with secondary color */
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1.5rem;
}

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

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius-base); /* Apply border-radius to images */
}

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

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

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

section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    margin-bottom: var(--spacing-lg); /* Space between sections */
}

/* Section Backgrounds */
.section-bg-1 {
    background-color: var(--color-section-bg-1);
}

.section-bg-2 {
    background-color: var(--color-section-bg-2);
}

.section-bg-3 {
    background-color: var(--color-section-bg-3);
}

.section-bg-4 {
    background-color: var(--color-section-bg-4);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    border-radius: var(--border-radius-base);
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) var(--transition-easing);
    box-shadow: var(--shadow-soft);
}

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

.btn-primary:hover {
    background-color: color-mix(in srgb, var(--color-accent) 90%, black); /* Slightly darker */
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.btn-secondary:hover {
    background-color: color-mix(in srgb, var(--color-secondary) 90%, black);
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Cards */
.card {
    background-color: white;
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-speed) var(--transition-easing);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

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

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-dark);
    background-color: white;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius-base);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.075);
    transition: border-color var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing);
}

.form-control:focus {
    color: var(--color-text-dark);
    background-color: white;
    border-color: var(--color-primary);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(46, 139, 87, 0.25); /* Primary color with transparency */
}

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

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

/* Footer */
footer {
    background-color: var(--color-footer-bg);
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: var(--spacing-xxl);
}

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

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

/* Utility Classes (to complement Tailwind) */
.text-primary {
    color: var(--color-primary) !important;
}

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

.bg-primary {
    background-color: var(--color-primary) !important;
}

.bg-secondary {
    background-color: var(--color-secondary) !important;
}

.shadow-md-custom {
    box-shadow: var(--shadow-soft);
}

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

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

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

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.75rem;
    }

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

    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 1rem;
    }
}

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

    h2 {
        font-size: 1.75rem;
    }

    body {
        font-size: 1rem;
    }

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


/* 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;
    }
}