:root {
    /* Couleurs */
    --primary-color: #00F0FF;
    --secondary-color: #FF0077;
    --background-color: #1A1A2E;
    --footer-bg-color: #0A0A1F;
    --section-bg-1: #1F2A40;
    --section-bg-2: #283747;
    --section-bg-3: #1A1A2E;
    --section-bg-4: #2B3B50;
    --text-color: #E0E0E0;
    --heading-color: var(--primary-color);
    --link-color: var(--primary-color);
    --link-hover-color: var(--secondary-color);
    --neon-glow-primary: 0 0 8px var(--primary-color), 0 0 20px var(--primary-color), 0 0 30px var(--primary-color);
    --neon-glow-secondary: 0 0 8px var(--secondary-color), 0 0 20px var(--secondary-color), 0 0 30px var(--secondary-color);

    /* Typographie */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --font-size-base: 18px;
    --line-height-base: 1.7;

    /* Espacement */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Rayons de bordure */
    --border-radius-sm: 5px;
    --border-radius-md: 10px;
    --border-radius-lg: 15px;

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

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

body {
    font-family: var(--font-body);
    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-heading);
    color: var(--heading-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    letter-spacing: 0.05em;
    text-shadow: var(--neon-glow-primary);
}

h1 {
    font-size: 3.5rem;
    text-align: center;
}

h2 {
    font-size: 2.8rem;
}

h3 {
    font-size: 2.2rem;
}

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

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

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

/* Utilities for sections background */
.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);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    border: 2px solid var(--primary-color);
    background-color: transparent;
    color: var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color);
    transition: all var(--transition-speed) var(--transition-ease);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.btn:hover {
    color: var(--background-color);
    border-color: var(--secondary-color);
    box-shadow: var(--neon-glow-secondary);
    text-shadow: none; /* Remove text shadow on hover to make text clearer */
}

.btn:hover:before {
    width: 200%;
    height: 200%;
    opacity: 1;
    background: var(--secondary-color);
}

/* Header style - assuming it will be a fixed element */
.header {
    background-color: rgba(26, 26, 46, 0.8); /* Semi-transparent background */
    backdrop-filter: blur(10px); /* Glassmorphism effect */
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.3);
    padding: var(--spacing-sm) var(--spacing-md);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.4s var(--transition-ease), backdrop-filter 0.4s var(--transition-ease);
}

.header-scrolled {
    background-color: rgba(26, 26, 46, 0.95); /* More opaque on scroll */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--primary-color);
}

.header .logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary-color);
    text-shadow: var(--neon-glow-primary);
    letter-spacing: 0.1em;
}

.header nav a {
    margin-left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    display: inline-block;
}

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

.header nav a:hover:after {
    width: 100%;
    background: var(--secondary-color);
}

.search-bar {
    position: relative;
    margin-left: var(--spacing-md);
}

.search-bar input {
    background-color: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-color);
    font-family: var(--font-body);
    transition: all var(--transition-speed) var(--transition-ease);
}

.search-bar input::placeholder {
    color: rgba(224, 224, 224, 0.6);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 5px var(--secondary-color);
}

/* Footer style */
.footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    border-top: 1px solid rgba(0, 240, 255, 0.2);
}

.footer .footer-nav a,
.footer .social-icons a {
    margin: 0 var(--spacing-sm);
    color: var(--text-color);
    transition: color var(--transition-speed) var(--transition-ease),
                text-shadow var(--transition-speed) var(--transition-ease);
}

.footer .footer-nav a:hover,
.footer .social-icons a:hover {
    color: var(--primary-color);
    text-shadow: var(--neon-glow-primary);
}

.footer .social-icons {
    margin-top: var(--spacing-md);
    font-size: 1.8rem;
}

.footer .newsletter-form {
    margin-top: var(--spacing-lg);
}

.footer .newsletter-form input[type="email"] {
    background-color: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-color);
    font-family: var(--font-body);
    width: 250px;
    margin-right: var(--spacing-sm);
    transition: all var(--transition-speed) var(--transition-ease);
}

.footer .newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 5px var(--secondary-color);
}

.footer .newsletter-form .btn {
    padding: var(--spacing-xs) var(--spacing-md);
}

/* Cards (example) */
.card {
    background-color: var(--section-bg-1);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
    transition: transform var(--transition-speed) var(--transition-ease),
                box-shadow var(--transition-speed) var(--transition-ease);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px var(--secondary-color), 0 0 25px var(--secondary-color);
}

.card:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, rgba(0,240,255,0) 0%, rgba(0,240,255,0.1) 50%, rgba(0,240,255,0) 100%);
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.5s var(--transition-ease);
}

.card:hover:before {
    opacity: 1;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius-md);
    filter: brightness(0.95); /* Soft filter */
    transition: filter var(--transition-speed) var(--transition-ease);
}

img:hover {
    filter: brightness(1.1) saturate(1.2); /* Slightly brighter and more saturated on hover */
}

/* Styles moved from inline */
@import url('https://fonts.googleapis.com/css2?family=Oxanium:wght@400;600;700&display=swap');

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

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.6rem;
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }

    .header {
        flex-direction: column;
        padding: var(--spacing-sm);
    }

    .header nav {
        margin-top: var(--spacing-sm);
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .header nav a {
        margin: var(--spacing-xs);
    }

    .search-bar {
        margin-top: var(--spacing-sm);
        margin-left: 0;
        width: 100%;
        text-align: center;
    }

    .search-bar input {
        width: 80%;
    }

    .footer .newsletter-form input[type="email"] {
        width: calc(100% - 100px); /* Adjust for button width */
        margin-bottom: var(--spacing-sm);
        margin-right: 0;
    }

    .footer .newsletter-form .btn {
        width: 100%;
    }
}

/* Keyframes for subtle animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-element {
    animation: fadeIn 0.8s var(--transition-ease) forwards;
    opacity: 0; /* Hidden by default */
}
/* This class should be added via JavaScript when element enters viewport */


/* 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;
    }
}