:root {
    --bg: #030303;
    --primary: #ffffff;
    --accent: #a1a1a1;
    --card-bg: rgba(255, 255, 255, 0.02);
    --border: rgba(255, 255, 255, 0.08);
    --grad: linear-gradient(90deg, #fff 0%, #666 100%);
}

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

body {
    background-color: var(--bg);
    color: var(--primary);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Sfondo Animato Creativo */
.background-wrapper {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    overflow: hidden;
}

.glow-sphere {
    position: absolute;
    filter: blur(100px);
    border-radius: 50%;
    opacity: 0.15;
    animation: move 20s infinite alternate;
}

.sphere-1 { width: 400px; height: 400px; background: #fff; top: -10%; left: 20%; }
.sphere-2 { width: 500px; height: 500px; background: #444; bottom: -10%; right: 10%; animation-delay: -5s; }
.sphere-3 { width: 300px; height: 300px; background: #888; top: 40%; left: 50%; animation-delay: -10s; }

@keyframes move {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 100px) scale(1.2); }
}

/* Navbar */
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 30px 10%;
}

.logo { font-weight: 800; font-size: 1.5rem; letter-spacing: -1px; }
.logo span { color: #555; }

.btn-nav {
    text-decoration: none; color: white; border: 1px solid var(--border);
    padding: 10px 24px; border-radius: 100px; font-size: 0.85rem;
    transition: 0.3s; background: rgba(255,255,255,0.03);
}
.btn-nav:hover { background: white; color: black; }

/* Hero Section */
.hero { text-align: center; padding: 100px 5%; }

.badge-wrapper {
    position: relative; display: inline-block; margin-bottom: 25px;
}

.badge-content {
    background: #111; border: 1px solid var(--border);
    padding: 6px 18px; border-radius: 100px; font-size: 0.75rem;
    color: var(--accent); position: relative; z-index: 2;
}

.badge-glow {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: white; filter: blur(15px); opacity: 0.2;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800; line-height: 0.95; letter-spacing: -0.05em;
    margin-bottom: 30px;
}

.gradient-text {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.8;
}

.hero-text {
    max-width: 600px; margin: 0 auto 40px;
    font-size: 1.2rem; color: var(--accent); font-weight: 300;
}

/* Button & CTA */
.btn-main {
    display: inline-block; background: white; color: black;
    padding: 20px 45px; border-radius: 100px; text-decoration: none;
    font-weight: 700; font-size: 1.1rem; transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 30px rgba(255,255,255,0.1);
}

.btn-main:hover { transform: scale(1.05) translateY(-5px); }

.secondary-info { margin-top: 20px; font-size: 0.8rem; color: #444; }

/* Features */
.features-grid .container {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px; padding: 100px 0;
}

.f-card {
    background: var(--card-bg); border: 1px solid var(--border);
    padding: 40px; border-radius: 32px; transition: 0.4s;
    backdrop-filter: blur(10px);
}

.f-card:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-10px);
}

.icon-box { font-size: 2rem; margin-bottom: 20px; }
.f-card h3 { font-size: 1.4rem; margin-bottom: 12px; }
.f-card p { color: var(--accent); font-size: 0.95rem; }

footer { text-align: center; padding: 60px; color: #333; font-size: 0.75rem; }

/* Mobile Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 20px 5%;
        flex-direction: column;
        gap: 20px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        width: 100%;
        text-align: center;
    }

    .btn-nav {
        display: block;
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    .hero {
        padding: 60px 5%;
    }

    .hero h1 {
        font-size: clamp(2rem, 10vw, 3.5rem);
    }

    .hero-text {
        font-size: 1rem;
    }

    .btn-main {
        padding: 16px 35px;
        font-size: 1rem;
    }

    .features-grid .container {
        grid-template-columns: 1fr;
        padding: 60px 5%;
    }

    .f-card {
        padding: 30px;
    }
}