/* style.css */
:root {
    --bg-color: #0a0a10;
    --text-color: #e0e0e0;
    --accent-color: #00f2ea;
    --glass-bg: rgba(20, 20, 30, 0.5);
    --font-main: 'Orbitron', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, Helvetica, sans-serif; /* Police de secours */
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
}

.three-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.hero-content {
    padding: 40px;
    max-width: 700px;
}

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.hero h1 {
    font-size: 3.5rem;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 0 0 15px var(--accent-color);
}

.hero p {
    font-size: 1.2rem;
    line-height: 1.6;
}

.cta-button {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 15px 30px;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 242, 234, 0.2);
}

/* --- Main Content & Features --- */
main {
    background: var(--bg-color);
    position: relative; /* Pour que le z-index fonctionne */
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 100px 5vw;
}

.feature-card {
    padding: 30px;
    text-align: center;
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    color: var(--accent-color); 
}

.feature-card:hover .feature-icon {
    /* On change la couleur de l'icône... */
    color: #ffffff; /* Devient blanc */
    /* ...et on applique la transformation */
    transform: scale(1.2) rotate(10deg);
}


/* --- Demo Sections --- */
.demo-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    padding: 100px 5vw;
    min-height: 70vh;
}

/* Inverser l'ordre pour la deuxième démo */
.demo-section:nth-child(odd) {
    flex-direction: row-reverse;
}

.demo-text {
    flex-basis: 40%;
}

.demo-canvas-container {
    flex-basis: 50%;
    height: 50vh;
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

footer {
    text-align: center;
    padding: 40px;
    background: #050508;
}

/* --- Animations --- */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.demo-controls {
    margin-top: 25px;
}

.demo-controls button {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 10px 20px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.demo-controls button:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}