:root {
    --primary-color: #0D0D0D; /* Noir profond */
    --secondary-color: #1A1A1A; /* Gris très foncé */
    --accent-color-neon-blue: #00FFFF; /* Cyan néon */
    --accent-color-neon-pink: #FF00FF; /* Magenta néon */
    --accent-color-neon-green: #39FF14; /* Vert néon */
    --text-color: #E0E0E0; /* Gris clair pour le texte */
    --text-color-darker: #A0A0A0; /* Gris plus foncé pour détails */
    --card-bg: rgba(20, 20, 20, 0.85); /* Fond de carte semi-transparent */
    --card-border: var(--accent-color-neon-blue);
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --shadow-neon: 0 0 5px var(--accent-color-neon-blue),
                   0 0 10px var(--accent-color-neon-blue),
                   0 0 15px var(--accent-color-neon-blue);
    --shadow-neon-pink: 0 0 5px var(--accent-color-neon-pink),
                        0 0 10px var(--accent-color-neon-pink),
                        0 0 15px var(--accent-color-neon-pink);
}

/* Reset et Styles Globaux */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden; /* Empêche le scroll horizontal */
}

/* Fond Vidéo */
.video-background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -2;
    overflow: hidden;
}

#bgVideo {
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7); /* Assombrir la vidéo */
    z-index: -1;
}
/* SI PAS DE VIDEO, UTILISER CE FOND : */
/*
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: url('gta_background_image.jpg') no-repeat center center fixed; 
    background-size: cover;
    opacity: 0.3;
    z-index: -2;
}
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.7);
    z-index: -1;
}
*/


/* Conteneur Principal */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Navbar */
.navbar {
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--accent-color-neon-blue);
    box-shadow: 0 2px 10px rgba(0, 255, 255, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 700;
    text-shadow: var(--shadow-neon);
}

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

.nav-menu {
    list-style: none;
    display: flex;
}

.nav-menu li {
    margin-left: 25px;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease, text-shadow 0.3s ease;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--primary-color);
    background-color: var(--accent-color-neon-blue);
    text-shadow: 0 0 5px rgba(0,0,0,0.5);
}

.nav-toggle {
    display: none; /* Caché sur desktop */
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--accent-color-neon-blue);
    position: relative;
    transition: transform 0.3s ease-in-out;
}
.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-color-neon-blue);
    transition: transform 0.3s ease-in-out, top 0.3s ease-in-out;
}
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Hamburger animation quand 'open' */
.nav-toggle.open .hamburger {
    transform: rotate(45deg);
}
.nav-toggle.open .hamburger::before {
    top: 0;
    transform: rotate(90deg);
}
.nav-toggle.open .hamburger::after {
    top: 0;
    transform: rotate(90deg);
    opacity: 0; /* Cache la barre du milieu quand X */
}


/* Hero Section */
#hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 100px; /* Pour la navbar fixe */
}

#hero h1 {
    font-family: var(--font-display);
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color-neon-pink);
    text-shadow: var(--shadow-neon-pink);
}

#hero p {
    font-size: 1.5rem;
    color: var(--text-color-darker);
}

/* Sections Générales */
.section {
    padding: 80px 0 40px; /* Espace pour la navbar fixe */
    border-bottom: 1px dashed rgba(0, 255, 255, 0.2);
}
.section:last-of-type {
    border-bottom: none;
}

.section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--accent-color-neon-blue);
    text-shadow: var(--shadow-neon);
    text-align: center;
    margin-bottom: 40px;
}
.section h2 .fas {
    margin-right: 10px;
}

/* Grid pour les cartes */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

/* Style des Cartes */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.1), inset 0 0 10px rgba(0, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex; /* Pour les cartes objectifs */
    flex-direction: column; /* Pour les cartes objectifs */
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-neon), inset 0 0 20px rgba(0, 255, 255, 0.1);
}

.card h3 {
    font-family: var(--font-display);
    color: var(--accent-color-neon-pink);
    margin-bottom: 15px;
    font-size: 1.5rem;
}
.card h3 .fas {
    margin-right: 8px;
}

.card h4 {
    color: var(--accent-color-neon-green);
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(57, 255, 20, 0.3);
    padding-bottom: 5px;
}

.card p {
    margin-bottom: 10px;
    color: var(--text-color-darker);
    font-size: 0.95rem;
}
.card p strong {
    color: var(--text-color);
}

/* Cartes spécifiques */
.objectif-card {
    border-color: var(--accent-color-neon-green);
}
.objectif-card:hover {
    box-shadow: 0 0 5px var(--accent-color-neon-green),
                   0 0 10px var(--accent-color-neon-green),
                   0 0 15px var(--accent-color-neon-green),
                   inset 0 0 20px rgba(57, 255, 20, 0.1);
}

.guide-card {
    border-color: var(--accent-color-neon-blue);
}

.astuce-card, .conseil-card {
    border-color: var(--accent-color-neon-pink);
}
.astuce-card:hover, .conseil-card:hover {
    box-shadow: var(--shadow-neon-pink),
                   inset 0 0 20px rgba(255, 0, 255, 0.1);
}

.ressource-card {
    border-color: #FFA500; /* Orange néon-ish */
}
.ressource-card:hover {
     box-shadow: 0 0 5px #FFA500,
                   0 0 10px #FFA500,
                   0 0 15px #FFA500,
                   inset 0 0 20px rgba(255, 165, 0, 0.1);
}


/* Checkbox custom pour Objectifs */
.checkbox-container {
    display: block;
    position: relative;
    padding-left: 35px;
    margin-bottom: 12px;
    cursor: pointer;
    font-size: 1rem;
    user-select: none;
    color: var(--text-color);
    transition: color 0.3s ease;
}
.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}
.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 25px;
    width: 25px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid var(--accent-color-neon-green);
    border-radius: 4px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}
.checkbox-container:hover input ~ .checkmark {
    background-color: rgba(57, 255, 20, 0.2);
}
.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-color-neon-green);
    border-color: var(--accent-color-neon-green);
    box-shadow: 0 0 10px var(--accent-color-neon-green);
}
.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}
.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}
.checkbox-container .checkmark:after {
    left: 9px;
    top: 5px;
    width: 5px;
    height: 10px;
    border: solid var(--primary-color);
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}
.checkbox-container input:checked ~ span:not(.checkmark) { /* Le texte de l'objectif */
    text-decoration: line-through;
    color: var(--text-color-darker);
}


/* Liens / Boutons */
.btn-link {
    display: inline-block;
    background-color: var(--accent-color-neon-blue);
    color: var(--primary-color);
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
    margin-top: 10px;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.btn-link:hover {
    background-color: var(--accent-color-neon-pink);
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-pink);
}


/* Footer */
footer {
    background-color: rgba(10,10,10,0.9);
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
    border-top: 1px solid var(--accent-color-neon-blue);
    box-shadow: 0 -2px 10px rgba(0, 255, 255, 0.1);
}
footer p {
    font-size: 0.9rem;
    color: var(--text-color-darker);
}
footer .logo-highlight {
    font-family: var(--font-display);
}


/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Caché par défaut sur mobile */
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 65px; /* Hauteur de la navbar */
        left: 0;
        background-color: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(5px);
        border-top: 1px solid var(--accent-color-neon-blue);
    }

    .nav-menu.active {
        display: flex; /* Affiché quand 'active' */
    }

    .nav-menu li {
        margin: 0;
        text-align: center;
    }

    .nav-menu a {
        display: block;
        padding: 15px;
        border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    }
    .nav-menu li:last-child a {
        border-bottom: none;
    }

    .nav-toggle {
        display: block; /* Afficher le hamburger sur mobile */
    }

    #hero h1 {
        font-size: 2.5rem;
    }
    #hero p {
        font-size: 1.1rem;
    }
    .section h2 {
        font-size: 2rem;
    }
    .grid-container {
        grid-template-columns: 1fr; /* Une colonne sur mobile */
    }
}

/* Scanlines effect (optionnel, peut impacter la perf) */
/*
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(200, 200, 255, 0.02),
        rgba(200, 200, 255, 0.02) 1px,
        transparent 1px,
        transparent 3px
    );
    z-index: -1;
    pointer-events: none;
}
*/