:root {
    --deep-blue: #8338ec;
    --electric-purple: #3a86ff;
    --neon-cyan: #85ffff;
    --magenta: #fb5607;
    --dark-bg: #050a18;
    --light-text: #f0f6ff;
    --glow: 0 0 15px currentColor;
    --transition-slow: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--dark-bg);
    color: var(--light-text);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}
#tooltip {
    position: fixed;
    top: 40px;
    left: 50%;
    background: rgba(10, 17, 40, 0.7);
    border: 1px solid rgba(0, 224, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    opacity: 0;
    transition: all 0.4s ease;
  z-index: 100;
}

/* Apparition */
#tooltip.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* Container 3D en arrière-plan */
#container3D {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1;
    mix-blend-mode: screen;
}

/* Contenu principal */
.content {
    position: relative;
    z-index: 2;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
}

/* Hero section avec superposition 3D */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 2rem;
  z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
}

/* Typographie immersive */
h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--light-text) 0%, var(--neon-cyan) 50%, var(--electric-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: var(--glow);
    line-height: 1.1;
}

.hero-tagline {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Sections de contenu */
.content-section {
    position: relative;
    z-index: 4;
    padding: 8rem 2rem;
    background: transparent;

}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--electric-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Grille immersive */
.grid-immersive {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.grid-item-3d {
    background: rgba(10, 17, 40, 0.7);
    border: 1px solid rgba(123, 75, 255, 0.2);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.grid-item-3d::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(123, 75, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-fast);
}

.grid-item-3d:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--neon-cyan);
    box-shadow: 0 10px 30px rgba(123, 75, 255, 0.2);
}

.grid-item-3d:hover::before {
    opacity: 1;
}

/* Icônes */
.grid-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--electric-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Témoignages */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.testimonial-card {
    background: rgba(10, 17, 40, 0.7);
    border: 1px solid rgba(0, 224, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    backdrop-filter: blur(10px);
}

.testimonial-card::after {
    content: '"';
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 4rem;
    font-family: 'Playfair Display', serif;
    color: rgba(123, 75, 255, 0.2);
}

/* Boutons */
.btn-immersive {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--electric-purple) 0%, var(--neon-cyan) 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-immersive::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn-immersive:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(123, 75, 255, 0.4);
}

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

/* Loader stylisé */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.8s ease-out;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(123, 75, 255, 0.3);
    border-top-color: var(--neon-cyan);
    border-radius: 50%;
    animation: spin 1.2s ease-in-out infinite;
    margin-bottom: 1.5rem;
}

.loader-text {
    font-size: 1.2rem;
    opacity: 0.8;
    letter-spacing: 2px;
    text-transform: uppercase;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Navigation */
.nav-immersive {
    position: absolute;
    top: 2rem;
    right: 2rem;
    z-index: 10;
    display: flex;
    gap: 1rem;
}

.nav-btn {
    padding: 0.8rem 1.5rem;
    background: rgba(10, 17, 40, 0.7);
    border: 1px solid rgba(123, 75, 255, 0.3);
    border-radius: 25px;
    color: var(--light-text);
    text-decoration: none;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.nav-btn:hover {
    background: var(--electric-purple);
    border-color: var(--electric-purple);
}

/* Animations */
@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 768px) {
    .content {
        padding: 1rem;
    }

    .hero {
        padding: 1rem;
    }

    .content-section {
        padding: 4rem 1rem;
    }

    .grid-immersive,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .nav-immersive {
        top: 1rem;
        right: 1rem;
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Effets de particules (simulés avec CSS) */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    background: var(--neon-cyan);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

/* Scroll indicator */
.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--neon-cyan);
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.scroll-indicator i {
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}