:root {
    /* Couleurs */
    --primary-color: #0F0F1A;
    --secondary-color: #2C2C40;
    --background-color: #0A0A10;
    --footer-bg-color: #0D0D15;
    --button-color: #8A2BE2; /* Violet éclatant */
    --text-color-primary: #E0E0E0;
    --text-color-secondary: #B0B0B0;
    --accent-neon-blue: #00FFFF;
    --accent-neon-pink: #FF00FF;
    --accent-neon-green: #00FF00;

    --section-bg-1: #151520;
    --section-bg-2: #1A1A25;
    --section-bg-3: #20202B;
    --section-bg-4: #252530;
    --section-bg-5: #2B2B38;

    /* Typographie */
    --font-family-main: 'Oxanium', sans-serif;
    --font-size-base: 1.125rem; /* 18px */
    --line-height-base: 1.8;
    --heading-line-height: 1.3;

    /* Espacement */
    --spacing-unit: 1rem;
    --section-padding-y: 6rem;
    --container-max-width: 1200px;

    /* Rayons de bordure */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;

    /* Ombres */
    --shadow-neon-blue: 0 0 10px var(--accent-neon-blue), 0 0 20px var(--accent-neon-blue);
    --shadow-neon-pink: 0 0 10px var(--accent-neon-pink), 0 0 20px var(--accent-neon-pink);
    --shadow-inset-glass: inset 0 0 10px rgba(255, 255, 255, 0.1), inset 0 0 20px rgba(255, 255, 255, 0.05);

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

/* Base */
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(--text-color-primary);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-main);
    color: var(--text-color-primary);
    line-height: var(--heading-line-height);
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

h1 {
    font-size: 3.8rem;
    font-weight: 800;
    text-shadow: var(--shadow-neon-blue);
}

h2 {
    font-size: 2.8rem;
    text-shadow: var(--shadow-neon-pink);
}

h3 {
    font-size: 2.2rem;
    text-shadow: var(--shadow-neon-green);
}

h4 {
    font-size: 1.8rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-color-secondary);
}

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

a:hover {
    color: var(--accent-neon-pink);
    text-shadow: 0 0 8px var(--accent-neon-pink);
}

/* Utilitaires de mise en page */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--section-padding-y) 0;
    position: relative;
    overflow: hidden;
}

/* Couleurs de fond de section */
.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); }

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    background: var(--button-color);
    color: var(--text-color-primary);
    box-shadow: 0 0 15px rgba(138, 43, 226, 0.6);
    transition: all var(--transition-speed) var(--transition-ease);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 25px rgba(138, 43, 226, 0.9), 0 0 40px rgba(138, 43, 226, 0.5);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: all 0.7s var(--transition-ease);
}

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

/* Cartes (Glaçomorphismes subtils) */
.card {
    background: rgba(44, 44, 64, 0.2); /* secondary-color avec opacité */
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2), var(--shadow-inset-glass);
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.3), var(--shadow-inset-glass), 0 0 20px rgba(138, 43, 226, 0.3);
}

/* Formulaires */
.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--secondary-color);
    background-color: var(--primary-color);
    color: var(--text-color-primary);
    font-family: var(--font-family-main);
    font-size: 1rem;
    box-shadow: var(--shadow-inset-glass);
    transition: border-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-neon-blue);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.3), var(--shadow-inset-glass);
}

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

/* Effets néon pour les éléments importants */
.neon-text-blue {
    color: var(--accent-neon-blue);
    text-shadow: var(--shadow-neon-blue);
}

.neon-text-pink {
    color: var(--accent-neon-pink);
    text-shadow: var(--shadow-neon-pink);
}

.neon-border {
    border: 2px solid var(--accent-neon-green);
    box-shadow: 0 0 15px var(--accent-neon-green);
}

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

.footer a {
    color: var(--accent-neon-blue);
}

.footer a:hover {
    color: var(--accent-neon-pink);
}

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

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s var(--transition-ease), transform 0.8s var(--transition-ease);
}

.fade-in-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Media Queries pour la responsivité */
@media (max-width: 768px) {
    :root {
        --font-size-base: 1rem;
        --section-padding-y: 4rem;
    }

    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2.2rem;
    }

    h3 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }

    .card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .btn {
        width: 100%;
        padding: 0.75rem 1.5rem;
    }
}


/* 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;
    }
}