:root {
    /* Colors */
    --primary-color: #00FFFF; /* Néon Cyan */
    --secondary-color: #FF00FF; /* Néon Magenta */
    --background-color: #1A0033; /* Dark Violet */
    --footer-bg-color: #0F001F; /* Deeper Dark Violet */
    --button-color: #8A2BE2; /* Blue Violet for button base */
    --text-color: #E0E0E0; /* Light Grey for main text */
    --header-text-color: #00FFFF;

    /* Section Backgrounds */
    --section-bg-1: #2B004D;
    --section-bg-2: #3E006F;
    --section-bg-3: #120026;
    --section-bg-4: #4C0080;

    /* Fonts */
    --heading-font: 'Orbitron', sans-serif;
    --body-font: 'Roboto', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 15px;
    --border-radius-lg: 25px;

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

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

body {
    font-family: var(--body-font);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    color: var(--primary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.6);
}

h1 {
    font-size: 3.5rem;
    text-align: center;
    text-transform: uppercase;
    text-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--secondary-color);
}

h2 {
    font-size: 2.8rem;
    text-align: center;
    text-shadow: 0 0 8px var(--primary-color);
}

h3 {
    font-size: 2.2rem;
    text-align: left;
    text-shadow: 0 0 6px rgba(0, 255, 255, 0.4);
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

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

a:hover {
    color: var(--secondary-color);
    text-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color), 0 0 15px var(--secondary-color);
}

/* Header */
.header {
    background: linear-gradient(90deg, var(--background-color) 0%, var(--section-bg-2) 100%);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .logo {
    font-family: var(--heading-font);
    font-size: 2rem;
    color: var(--header-text-color);
    text-shadow: 0 0 10px var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.header .nav-link {
    font-family: var(--heading-font);
    color: var(--header-text-color);
    margin-left: var(--spacing-lg);
    font-size: 1.1rem;
    position: relative;
}

.header .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-speed) var(--transition-easing);
}

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

.header .nav-link:hover {
    text-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color), 0 0 15px var(--secondary-color);
}


/* Buttons - Brutalism & Neon */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--heading-font);
    font-size: 1.1rem;
    font-weight: bold;
    text-transform: uppercase;
    color: #FFFFFF;
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-sm); /* Biseauté effect via border-radius */
    box-shadow: 0 4px 15px rgba(255, 0, 255, 0.4);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all var(--transition-speed) var(--transition-easing);
    letter-spacing: 0.05em;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-100%);
    transition: transform var(--transition-speed) var(--transition-easing);
    z-index: -1;
}

.btn:hover:before {
    transform: translateX(0);
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 255, 255, 0.6);
    border-color: var(--secondary-color);
    color: #FFFFFF;
}

.btn:active {
    transform: scale(0.98);
    box-shadow: 0 2px 10px rgba(255, 0, 255, 0.4);
}

/* Cards - Glassmorphism */
.card {
    background-color: rgba(43, 0, 77, 0.7); /* Custom card background */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* For Safari */
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(0, 255, 255, 0.3);
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.2);
    padding: var(--spacing-lg);
    margin: var(--spacing-md);
    overflow: hidden;
    position: relative;
    transition: transform var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 255, 255, 0.4);
}

.card h3 {
    color: var(--primary-color);
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
    margin-top: 0;
}

/* Sections - Dynamic Backgrounds */
.section {
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.section-bg-1 {
    background-color: var(--section-bg-1);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

.section-bg-2 {
    background-color: var(--section-bg-2);
    border-top: 1px solid rgba(255, 0, 255, 0.1);
    border-bottom: 1px solid rgba(255, 0, 255, 0.1);
}

.section-bg-3 {
    background-color: var(--section-bg-3);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

.section-bg-4 {
    background-color: var(--section-bg-4);
    border-top: 1px solid rgba(255, 0, 255, 0.1);
    border-bottom: 1px solid rgba(255, 0, 255, 0.1);
}

/* Footer */
.footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    border-top: 2px solid var(--secondary-color);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.5);
    margin-top: var(--spacing-xl);
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
}

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

.footer a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

/* Utility Classes for Tailwind Integration */
/* These classes are for elements that might not be covered by Tailwind's default */
.text-neon-cyan {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

.text-neon-magenta {
    color: var(--secondary-color);
    text-shadow: 0 0 5px var(--secondary-color);
}

.border-neon {
    border-color: var(--primary-color);
    box-shadow: 0 0 8px var(--primary-color);
}

/* 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 .logo {
        margin-bottom: var(--spacing-sm);
    }

    .header .nav-link {
        margin: 0 var(--spacing-sm);
    }

    .btn {
        padding: 0.8rem 1.2rem;
        font-size: 1rem;
    }

    .card {
        padding: var(--spacing-md);
        margin: var(--spacing-sm) 0;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }
}

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

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    p {
        font-size: 1rem;
    }

    .header .nav-link {
        font-size: 0.9rem;
        margin: 0 0.5rem;
    }

    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

/* Keyframes for subtle animations */
@keyframes neon-glow {
    0% {
        text-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color);
    }
    50% {
        text-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--secondary-color);
    }
    100% {
        text-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color);
    }
}

.animate-neon-glow {
    animation: neon-glow 2s infinite alternate;
}


/* 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;
    }
}