/* --- HEADER AUTOREVOLE E FISSO --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px; /* Più imponente per C-Level */
    background-color: #ffffff;
    border-bottom: 1px solid #e0e0e0;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 40px;
}

.site-header img {
    height: 80px; /* Logo autorevole come richiesto */
}

/* Spazio per header fisso */
body {
    padding-top: 100px;
    font-family: 'Inter', sans-serif;
    color: #333;
    background-color: #ffffff;
    margin: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- FONT HIERARCHY PER C-LEVEL --- */
h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: #1a1a1a;
    margin-top: 0;
}

h2 { font-size: 2.8rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.5rem; }

p {
    margin-top: 0;
    margin-bottom: 1em;
    color: #555;
}

/* --- LAYOUT CONTAINERS --- */
.container, .wide-container, .header-container {
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
    box-sizing: border-box;
}

.container { max-width: 960px; }
.wide-container, .header-container { max-width: 1240px; }

/* --- SEZIONI GENERALI --- */
main > section {
    padding: 100px 0;
    text-align: center;
}

main > section:nth-of-type(odd) {
    background-color: #f8f9fa;
}

/* --- HERO SECTION --- */
#hero {
    padding: 120px 0;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 0.5em;
}

.hero-subtitle-wrapper {
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a4a4a;
    line-height: 1.4;
    margin-bottom: 0.5em;
}

/* --- OUR APPROACH (MODIFICATO E CORRETTO) --- */
#approach h2 {
    margin-bottom: 60px;
}

#approach {
    background-color: #f8f9fa;
}

/* NUOVO: Contenitore Flex per i riquadri */
.approach-grid {
    display: flex;
    justify-content: center; /* Centra i box orizzontalmente */
    align-items: stretch;   /* Allunga i box per avere la stessa altezza */
    gap: 40px;              /* Spazio tra i due box */
}

.content-block {
    width: 100%;
    max-width: 420px;
    text-align: left;
    background: #fff;
    padding: 35px 30px;
    border: 1px solid #e9e9e9;
    border-radius: 8px;
    box-sizing: border-box;
}

.content-block h3 {
    font-size: 1.7rem;
    margin-bottom: 15px;
}

.content-block p {
    font-size: 1.15rem;
    line-height: 1.7;
}


/* --- OUR WORK --- */
.section-header {
    margin-bottom: 60px;
}

.section-intro {
    font-size: 1.1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.work-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    text-align: left;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.grid-item {
    background: #fff;
    padding: 35px 30px;
    border: 1px solid #e9e9e9;
    border-radius: 8px;
}

.full-width-item {
    grid-column: 1 / -1;
}

.grid-item h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.grid-item p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* --- MESSAGGI CHIAVE PER C-LEVEL --- */
#validation .statement-text {
    font-family: 'Inter', sans-serif;
    font-size: 1.4rem;
    font-weight: 400;
    color: #2c3e50;
    line-height: 1.6;
    max-width: 900px;
    margin: 0 auto 1em;
}

#partnership .partner-call {
    font-family: 'Inter', sans-serif;
    font-size: 1.4rem;
    font-weight: 400;
    color: #2c3e50;
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto 1.2em;
}

#validation p:last-of-type,
#partnership p:last-of-type {
    margin-bottom: 0;
}

#partnership h2 {
    margin-bottom: 50px;
}

/* --- MEDIA QUERIES --- */
@media (max-width: 768px) {
    .site-header {
        height: 80px;
        padding: 0 20px;
    }

    .site-header img {
        height: 60px;
    }

    body {
        padding-top: 80px;
    }

    h2 { font-size: 2.2rem; }
    .hero-title { font-size: 3rem; }

    main > section {
        padding: 60px 20px;
    }

    /* MODIFICATO: Gestisce il layout flex su mobile */
    .approach-grid {
        flex-direction: column; /* Impila i riquadri verticalmente */
        align-items: center;    /* Li centra */
        gap: 30px;
    }

    #validation .statement-text {
        font-size: 1.2rem;
    }

    #partnership .partner-call {
        font-size: 1.2rem;
    }
}```