:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-light: #7f8c8d;
    --text-important: #ffc107;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Accessibilità: Focus visibile */
a:focus, button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0; 
}

/* Immagini responsive globali */
img {
    max-width: 100%;
    height: auto;
}

.card {
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.navbar-glass {
    background: rgba(255, 255, 255, 0.8) !important; /* Più chiaro per contrasto */
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.navbar-glass .navbar-brand {
    color: #2c3e50 !important;
    font-weight: 700;
}

.navbar-glass .nav-link {
    color: #2c3e50 !important;
    transition: all 0.3s ease;
    font-weight: 600;
    padding: 0.5rem 1rem !important; /* Touch target più grandi */
}

.navbar-glass .nav-link:hover {
    color: var(--accent-color) !important;
    transform: translateY(-1px);
}

.navbar-glass.scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-glass .dropdown-menu {
    background-color: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-glass .dropdown-item {
    color: #2c3e50 !important;
    padding: 10px 20px; /* Touch target */
}

.navbar-glass .dropdown-item:hover {
    background-color: #f8f9fa;
    color: var(--accent-color) !important;
}

.navbar-brand {
    font-size: 1.5rem;
}

.social-links {
    text-align: center;
}

/* Touch target per mobile */
.social-icon {
    display: inline-block;
    padding: 10px;
}

.bg-alt-section {
    background-color: #f8f9fa;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

@media (max-width: 768px) {
    body {
        margin-top: 0;
    }
    
    .hero-section {
        text-align: center;
        padding-top: 120px;
    }

    .social-links {
        margin-top: 30px;
    }
    
    .navbar-collapse {
        background: white;
        padding: 1rem;
        border-radius: 0 0 10px 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
}