:root {
    /* Colors */
    --primary-color: #6C63FF;
    --secondary-color: #00E676;
    --background-color: #F0F2F5;
    --footer-bg-color: #1A1A2E;
    --button-color: #6C63FF;
    --text-color: #333333;
    --heading-color: #1A1A2E;
    --link-color: var(--primary-color);
    --accent-neon-color: #00E676; /* Secondary color used as neon accent */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);

    --section-bg-1: #FFFFFF;
    --section-bg-2: #E6F7FF;
    --section-bg-3: #F8FBFD;
    --section-bg-4: #FFFFFF;
    --section-bg-5: #E6FFFB;
    --section-bg-6: #F0F0FF;


    /* Typography */
    --font-family-primary: 'Kanit', sans-serif;
    --font-size-base: 1rem; /* 16px */
    --line-height-base: 1.7;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-unit: 1rem;
    --padding-md: 1.5rem;
    --padding-lg: 3rem;
    --margin-md: 1.5rem;
    --margin-lg: 3rem;

    /* Borders & Shadows */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --box-shadow-light: 0 4px 12px rgba(0, 0, 0, 0.08);
    --box-shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --box-shadow-neon: 0 0 15px var(--accent-neon-color), 0 0 30px var(--accent-neon-color);

    /* 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);
    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-primary);
    color: var(--heading-color);
    line-height: var(--line-height-heading);
    margin-top: var(--margin-lg);
    margin-bottom: var(--margin-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: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

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

ul, ol {
    margin-bottom: var(--margin-md);
    padding-left: 1.5rem;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--glass-bg); /* Glassmorphism background */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem var(--padding-lg);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--box-shadow-glass);
}

.header .logo {
    /* Abstract nature-inspired logo - placeholder styles */
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-neon-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.header nav a {
    color: var(--heading-color);
    margin-left: var(--spacing-unit);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-speed) var(--transition-ease);
    font-weight: 500;
}

.header nav a:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    box-shadow: 0 0 10px rgba(108, 99, 255, 0.4);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2.2rem;
    border-radius: var(--border-radius-md);
    background: linear-gradient(45deg, var(--button-color) 0%, #8A81FF 100%);
    color: white;
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-speed) var(--transition-ease);
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3), var(--box-shadow-neon);
    background: linear-gradient(45deg, #8A81FF 0%, var(--button-color) 100%);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transform: skewX(-30deg);
    transition: all var(--transition-speed) var(--transition-ease);
}

.btn:hover::before {
    left: 100%;
}

/* 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); }
.section-bg-6 { background-color: var(--section-bg-6); }

/* Card Styles */
.card {
    background-color: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: var(--padding-lg);
    box-shadow: var(--box-shadow-glass);
    transition: all var(--transition-speed) var(--transition-ease);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.45);
}

/* Footer Styles */
.footer {
    background-color: var(--footer-bg-color);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--padding-lg) 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer a {
    color: var(--accent-neon-color);
    margin: 0 0.5rem;
}

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

/* Utility Classes (to complement Tailwind) */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--padding-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-lg { margin-bottom: var(--margin-lg); }
.mt-lg { margin-top: var(--margin-lg); }
.py-lg { padding-top: var(--padding-lg); padding-bottom: var(--padding-lg); }

/* Animation - Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s var(--transition-ease) forwards;
    opacity: 0; /* Ensure it starts hidden */
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }

    .header {
        padding: 0.8rem var(--padding-md);
        flex-direction: column;
        gap: 0.5rem;
    }

    .header nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .header nav a {
        margin: 0.2rem 0.5rem;
        padding: 0.4rem 0.8rem;
    }

    .btn {
        padding: 0.7rem 1.8rem;
        font-size: 0.95rem;
    }

    .container {
        padding: 0 var(--spacing-unit);
    }

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

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .btn {
        width: 100%;
        max-width: 250px;
        margin: 0.5rem auto;
        display: block;
    }
}

/* Specific Glassmorphism and Neon Accents */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-glass);
}

.neon-text {
    color: var(--accent-neon-color);
    text-shadow: 0 0 5px var(--accent-neon-color), 0 0 10px var(--accent-neon-color), 0 0 15px var(--accent-neon-color);
}

.neon-border {
    border: 2px solid var(--accent-neon-color);
    box-shadow: 0 0 8px var(--accent-neon-color), inset 0 0 8px var(--accent-neon-color);
}


/* 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;
    }
}