:root {
    /* Colors */
    --primary-color: #00FFFF; /* Néon Cyan */
    --secondary-color: #FF00FF; /* Néon Magenta */
    --background-color: #1A1A2E; /* Sombre Profond */
    --footer-bg-color: #0F0F1A; /* Presque Noir */
    --button-color: #00FFFF; /* Cyan pour les boutons */

    --section-bg-1: #2C073B; /* Violet Profond */
    --section-bg-2: #1F004D; /* Bleu Indigo Profond */
    --section-bg-3: #3A021F; /* Rouge Brique Sombre */
    --section-bg-4: #0E0E3D; /* Bleu Nuit */
    --section-bg-5: #210042; /* Aubergine */

    --text-color-light: #E0E0E0; /* Texte clair pour contraste */
    --text-color-dark: #A0A0A0; /* Texte secondaire */

    /* Typography */
    --font-primary: 'Orbitron', sans-serif; /* Futuriste, Géométrique */
    --font-secondary: 'Rajdhani', sans-serif; /* Moderne, Lisible */
    --font-size-base: 1.125rem; /* 18px */
    --line-height-base: 1.7;

    /* Spacing */
    --spacing-unit: 1rem; /* 16px */
    --section-padding: 6rem 0;

    /* Borders & Shadows */
    --border-radius-primary: 0.25rem; /* Coins légèrement arrondis */
    --neon-glow-primary: 0 0 10px var(--primary-color), 0 0 20px var(--primary-color);
    --neon-glow-secondary: 0 0 10px var(--secondary-color), 0 0 20px var(--secondary-color);
    --brutal-border: 2px solid var(--primary-color);
    --brutal-shadow: 4px 4px 0px var(--secondary-color);

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

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

body {
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color-light);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--primary-color);
    line-height: 1.2;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

h1 {
    font-size: 3.5rem;
    text-shadow: var(--neon-glow-primary);
}

h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

h3 {
    font-size: 1.8rem;
}

p {
    margin-bottom: 1em;
    color: var(--text-color-light);
}

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

a:hover {
    color: var(--secondary-color);
    text-shadow: var(--neon-glow-secondary);
}

/* Utility Classes for Layout (assuming Tailwind is present, these are custom additions) */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-unit);
    padding-right: var(--spacing-unit);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: var(--brutal-border);
    border-radius: var(--border-radius-primary);
    background-color: var(--button-color);
    color: var(--background-color); /* Texte sombre sur bouton néon */
    cursor: pointer;
    box-shadow: var(--brutal-shadow);
    transition: all var(--transition-speed) var(--transition-timing);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--secondary-color);
    border-radius: 50%;
    transition: width 0.4s ease-in-out, height 0.4s ease-in-out;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.btn:hover {
    color: var(--text-color-light); /* Texte clair sur hover */
    box-shadow: 0 0 15px var(--button-color);
    transform: translateY(-2px);
}

.btn:hover:before {
    width: 200%;
    height: 200%;
}

.btn-secondary {
    background-color: transparent;
    color: var(--button-color);
    border-color: var(--button-color);
    box-shadow: none;
}

.btn-secondary:hover {
    background-color: var(--button-color);
    color: var(--background-color);
    box-shadow: 0 0 15px var(--button-color);
}

/* Section Backgrounds */
.section-bg-1 {
    background-color: var(--section-bg-1);
    padding: var(--section-padding);
}
.section-bg-2 {
    background-color: var(--section-bg-2);
    padding: var(--section-padding);
}
.section-bg-3 {
    background-color: var(--section-bg-3);
    padding: var(--section-padding);
}
.section-bg-4 {
    background-color: var(--section-bg-4);
    padding: var(--section-padding);
}
.section-bg-5 {
    background-color: var(--section-bg-5);
    padding: var(--section-padding);
}

/* Cards */
.card {
    background-color: rgba(30, 0, 40, 0.6); /* Semi-transparent dark purple */
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-primary);
    padding: 2rem;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2), inset 0 0 5px rgba(0, 255, 255, 0.1);
    transition: transform var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
    backdrop-filter: blur(5px); /* Glassmorphism effect */
    -webkit-backdrop-filter: blur(5px);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--neon-glow-primary), inset 0 0 8px var(--primary-color);
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    margin-bottom: 1rem;
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-primary);
    color: var(--text-color-light);
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    transition: all var(--transition-speed) var(--transition-timing);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 8px var(--secondary-color);
}

/* Footer */
.footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color-dark);
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--primary-color);
}

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

.footer a:hover {
    color: var(--secondary-color);
    text-shadow: var(--neon-glow-secondary);
}

/* Keyframes for subtle animations */
@keyframes neonPulse {
    0% { opacity: 1; }
    50% { opacity: 0.8; }
    100% { opacity: 1; }
}

/* Apply pulse to specific elements for effect */
.logo, .hero-title {
    animation: neonPulse 2s infinite alternate;
}

/* Fractal-like pattern on background (subtle) */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" opacity="0.05"><defs><pattern id="fractal" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 0 0 L 5 10 L 10 0 Z" fill="none" stroke="%2300FFFF" stroke-width="0.2"/></pattern></defs><rect width="100" height="100" fill="url(%23fractal)"/></svg>');
    background-size: 200px;
    opacity: 0.05;
    z-index: -1;
    pointer-events: none;
}

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

    h2 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 1rem;
    }

    .section-bg-1, .section-bg-2, .section-bg-3, .section-bg-4, .section-bg-5 {
        padding: 4rem 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;
    }
}