:root {
    --ottanio-bg: #0a4d55; 
    --accent-purple: #8b5cf6;
    --white: #ffffff;
    --text-dark: #1a2e30;
    --text-muted: #566a6c;
    --shadow-soft: 0 30px 60px rgba(0, 0, 0, 0.15);
    --radius-xl: 40px;
    --radius-md: 24px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--ottanio-bg);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* --- White Slot System --- */
.white-slot {
    background: var(--white);
    color: var(--text-dark);
    border-radius: var(--radius-xl);
    padding: 80px 60px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 50px;
}

/* --- Header --- */
header {
    position: sticky;
    top: 15px;
    z-index: 1000;
    margin-bottom: 30px;
}
.nav-inner {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 12px 30px;
    border-radius: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative; /* Aggiunto per posizionamento menu mobile */
}
.logo { color: #000000; font-weight: 800; font-size: 22px; text-decoration: none; display: flex; align-items: center; gap: 8px; }
.nav-links { display: flex; gap: 25px; align-items: center; }
.nav-links a { color:#000000; text-decoration: none; font-weight: 600; font-size: 14px; opacity: 0.8; transition: 0.3s; }
.nav-links a:hover { opacity: 1; }

.mobile-menu-toggle {
    display: none;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: 0.3s;
    cursor: pointer;
    border: none;
}
.btn-purple { background: var(--accent-purple); color: var(--white); }
.btn-purple:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3); }
.btn-outline { border: 1px solid var(--white); color: var(--white); background: transparent; }

/* --- Hero --- */
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0 100px; }
.hero h1 { font-size: 54px; font-weight: 800; line-height: 1.1; margin-bottom: 24px; letter-spacing: -2px; }
.hero p { font-size: 20px; opacity: 0.9; margin-bottom: 32px; }
.hero-checks { display: flex; gap: 20px; margin-bottom: 32px; }
.check-item { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 700; }
.hero-image-slot { background: var(--white); padding: 15px; border-radius: var(--radius-xl); box-shadow: var(--shadow-soft); overflow: hidden; }
.hero-image-slot img { width: 100%; height: 550px; object-fit: cover; border-radius: 25px; display: block; }

/* --- Typography --- */
.badge { background: rgba(139, 92, 246, 0.1); color: var(--accent-purple); padding: 6px 16px; border-radius: 100px; font-size: 13px; font-weight: 700; margin-bottom: 15px; display: inline-block; }
h2 { font-size: 40px; font-weight: 800; margin-bottom: 20px; letter-spacing: -1px; }

/* --- Services Grid --- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 40px; }
.service-card { background: #f8fafc; padding: 30px; border-radius: var(--radius-md); transition: 0.3s; border: 1px solid #eee; }
.service-card:hover { transform: translateY(-5px); background: white; box-shadow: var(--shadow-soft); }
.service-card h4 { margin: 15px 0 10px; font-size: 18px; }
.service-card ul { list-style: none; font-size: 14px; color: var(--text-muted); }
.service-card li { margin-bottom: 5px; }

/* --- Settori --- */
.vertical-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.v-card { background: #f8fafc; border-radius: var(--radius-md); overflow: hidden; height: 100%; transition: 0.3s; border: 1px solid #eee; }
.v-card:hover { transform: translateY(-10px); background: white; box-shadow: var(--shadow-soft); }
.v-card img { width: 100%; height: 180px; object-fit: cover; }
.v-card-body { padding: 20px; }
.v-card h4 { font-size: 17px; margin-bottom: 8px; color: var(--ottanio-bg); display: flex; align-items: center; gap: 8px; }
.v-card p { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.4; }
.v-card ul { list-style: none; font-size: 12px; font-weight: 700; }
.v-card li { margin-bottom: 4px; display: flex; align-items: center; gap: 5px; }
.v-card li::before { content: "✓"; color: var(--accent-purple); }

/* --- FAQ --- */
.faq-item { border-bottom: 1px solid #eee; padding: 20px 0; }
summary { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; font-size: 1.1rem; }
summary::after { content: "+"; color: var(--accent-purple); }

/* --- Form Slot Style --- */
.form-slot { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.input-group.full { grid-column: span 2; }
.input-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 13px; }
.input-group input, .input-group select { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid #ddd; outline: none; }

/* --- About Partners --- */
.partners { 
    display: flex; 
    gap: 40px; 
    margin-top: 40px; 
    opacity: 0.8; 
    font-weight: 800; 
    font-size: 20px; 
    color: var(--ottanio-bg); 
    flex-wrap: wrap; 
    justify-content: center; 
    text-align: center;
}
.partners span { border-bottom: 3px solid var(--accent-purple); padding-bottom: 5px; }

@media (max-width: 1200px) { 
    .vertical-grid { grid-template-columns: repeat(2, 1fr); } 
}

@media (max-width: 768px) {
    :root {
        --radius-xl: 30px;
        --radius-md: 20px;
    }

    .container { padding: 0 16px; }

    /* Titles Centering */
    h1, h2, h3, .badge { 
        text-align: center; 
        display: block; 
        margin-left: auto; 
        margin-right: auto; 
    }
    
    .hero { 
        grid-template-columns: 1fr; 
        padding: 40px 0 60px; 
        gap: 40px;
        text-align: left; 
    }
    header { top: 10px; margin-bottom: 20px; }
    .nav-inner { padding: 10px 20px; }
    .logo { font-size: 18px; }
    
    /* Burger Menu Button */
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--accent-purple);
        border: none;
        color: white;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        cursor: pointer;
        z-index: 1001;
    }

    .nav-links {
        display: none; /* Hidden by default on mobile */
        position: absolute;
        top: 60px;
        right: 0;
        width: 250px;
        height: auto;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        gap: 0;
        z-index: 1000;
        padding: 15px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-soft);
        border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 15px;
        color: var(--text-dark);
        opacity: 1;
        width: 100%;
        text-align: left;
        padding: 12px 15px;
        border-radius: 10px;
        transition: 0.2s;
        font-weight: 600;
    }

    .nav-links a:hover {
        background: #f8fafc;
        color: var(--accent-purple);
    }

    .nav-links a.btn {
        width: 100%;
        min-width: unset;
        margin-top: 10px;
        padding: 12px;
        text-align: center;
        justify-content: center;
    }
    
    /* Hide the fake menu text we added before */
    .nav-inner::after {
        display: none;
    }

    /* Hero */
    .hero { 
        grid-template-columns: 1fr; 
        padding: 40px 0 60px; 
        gap: 40px;
        text-align: left; /* Cambiato da center a left per una migliore leggibilità */
    }
    .hero h1 { 
        font-size: 38px; 
        letter-spacing: -1px; 
        text-align: center;
    }
    .hero p { 
        font-size: 17px; 
        text-align: center;
    }
    .hero-checks { 
        flex-direction: column; 
        align-items: flex-start; /* Allineato a sinistra */
        gap: 12px; 
        margin-bottom: 32px; 
    }
    .hero-text div[style*="display: flex"] {
        flex-direction: column;
        gap: 12px;
    }
    .btn { width: 100%; justify-content: center; }
    .hero-image-slot { order: -1; } /* Mostra l'immagine sopra il testo su mobile */
    .hero-image-slot img { height: 300px; }

    .white-slot > div[style*="text-align: center"] h2 {
        text-align: center;
    }
    .white-slot h2 {
        text-align: center;
        width: 100%;
    }
    .white-slot h3 {
        text-align: center;
        width: 100%;
    }
    
    /* Identity & Solution Slot */
    .white-slot > div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
        text-align: left; /* Cambiato da center a left */
    }
    .white-slot img { height: 300px !important; }

    /* Services */
    .services-grid { 
        grid-template-columns: 1fr; 
        gap: 16px; 
    }
    .service-card { padding: 24px; text-align: left; } /* Allineato a sinistra */
    .service-card ul { display: block; text-align: left; }

    /* Benefits & Tech */
    .white-slot > div[style*="grid-template-columns: 1fr 1.2fr"] {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }
    .white-slot ul[style*="list-style: none; margin-top: 20px;"] {
        padding-left: 0;
    }
    .white-slot ul[style*="list-style: none; margin-top: 20px;"] li {
        justify-content: flex-start;
        align-items: center;
        text-align: left;
    }
    div[style*="border-left: 2px solid"] {
        border-left: none !important;
        border-top: 2px solid #f1f5f9;
        padding-left: 0 !important;
        padding-top: 40px;
        text-align: left;
    }
    div[style*="grid-template-columns: 1fr 1fr; gap: 15px"] {
        grid-template-columns: 1fr !important;
        text-align: left;
        width: 100%; /* Occupa tutto lo spazio per l'allineamento a sinistra */
        margin: 0;
    }

    /* Support */
    #supporto > div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
        text-align: left;
    }
    #supporto div[style*="grid-template-columns: 1fr 1fr; gap: 20px"] {
        grid-template-columns: 1fr 1fr !important; /* Forza 2 colonne affiancate su mobile */
        text-align: left;
        width: 100%;
        margin: 0;
        gap: 20px 15px !important;
    }
    #supporto div[style*="grid-template-columns: 1fr 1fr; gap: 20px"] > div {
        margin-bottom: 10px;
    }
    #supporto div[style*="grid-template-columns: 1fr 1fr; gap: 20px"] strong {
        display: block;
        font-size: 14px;
        line-height: 1.2;
        margin-bottom: 4px;
    }
    #supporto div[style*="grid-template-columns: 1fr 1fr; gap: 20px"] p {
        font-size: 12px !important;
    }

    /* Settori */
    .vertical-grid { grid-template-columns: 1fr !important; }
    
    /* Form */
    .form-slot { grid-template-columns: 1fr; text-align: left; } /* Cambiato da center a left */
    .input-grid { grid-template-columns: 1fr; }
    .input-group.full { grid-column: span 1; }

    /* FAQ */
    summary { font-size: 1rem; }

    /* Partners */
    .partners { gap: 20px; font-size: 16px; }
}


.partners {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0.8;
    transition: 0.3s;
}

.partner-item:hover {
    opacity: 1;
    transform: translateY(-3px);
}

.partner-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.partner-item span {
    font-size: 0.85rem;
    font-weight: 600;
    color: #555;
    letter-spacing: 1px;
}