/*
 *  Stile per Studio Dr. Aldo Tolino
 *  Design System: Material Design 3 Expressive
 *  Approccio: Mobile-First Responsive
 *  Data ultima revisione: 24/05/2024
 */

/* --- GOOGLE FONT --- */
@import url('https://fonts.googleapis.com/css2?family=Roboto+Flex:opsz,wght@8..144,300;8..144,400;8..144,500;8..144,700&display=swap');

/* --- MD3 DESIGN SYSTEM : CUSTOM PROPERTIES --- */
:root {
    /* Palette Colori Primari (Blu) */
    --c-primary: #00639c;
    --c-on-primary: #ffffff;
    --c-primary-container: #cee5ff;
    --c-on-primary-container: #001d33;

    /* Palette Colori Secondari (Verde) */
    --c-secondary: #006d39; 
    --c-on-secondary: #ffffff;
    --c-secondary-container: #9af6b3;
    --c-on-secondary-container: #00210d;

    /* Palette Colori Superfici e Testo */
    --c-surface: #fbfdff;
    --c-on-surface: #1a1c1e;
    --c-surface-variant: #dde3ea;
    --c-on-surface-variant: #41484d;
    --c-outline: #cdd7e0; /* Leggermente più chiaro per i bordi */
    --c-background: #fbfdff;
    
    /* Tipografia */
    --font-family: 'Roboto Flex', sans-serif;
    
    /* Forme e Bordi (Stile Expressive) */
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 16px;
    --radius-xlarge: 28px; 
    
    /* Ombre (Elevation) */
    --shadow-1: 0 1px 2px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
    --shadow-2: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-3: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);

    /* Transizioni */
    --transition-speed: 0.3s;
}

/* --- RESET E STILI GLOBALI --- */
*, *::before, *::after { 
    box-sizing: border-box; 
}
html { 
    scroll-behavior: smooth; 
}
body {
    font-family: var(--font-family);
    background-color: var(--c-background);
    color: var(--c-on-surface);
    margin: 0;
    padding-top: 80px; /* Spazio per header fisso */
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body.no-scroll {
    overflow: hidden;
}
.container { 
    width: 100%; 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 24px; 
}

/* --- TIPOGRAFIA --- */
h1, h2, h3, h4 { 
    color: var(--c-primary); 
    font-weight: 700; 
    margin: 0 0 1rem 0; 
}
h1 { 
    font-size: 2.5rem; 
    line-height: 1.2; 
}
h2 { 
    font-size: 2rem; 
    line-height: 1.3; 
}
p { 
    margin: 0 0 1.5rem 0; 
}
a { 
    color: var(--c-primary); 
    text-decoration: none; 
    transition: color var(--transition-speed); 
}
a:hover { 
    color: var(--c-secondary); 
}

/* --- HEADER --- */
.main-header {
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    z-index: 1000;
    height: 80px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--c-surface-variant);
    transition: background-color var(--transition-speed);
}
.main-header .container { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    height: 100%; 
}
.logo strong { 
    font-size: 1.5rem; 
    color: var(--c-primary); 
}

/* --- BOTTONI (CTA) --- */
.cta-button {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-xlarge);
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--shadow-1);
}
.cta-button.primary { 
    background-color: var(--c-primary); 
    color: var(--c-on-primary); 
}
.cta-button.primary:hover { 
    background-color: #004c7b; 
    transform: translateY(-3px); 
    box-shadow: var(--shadow-2); 
}
.cta-button.secondary { 
    background-color: var(--c-primary-container); 
    color: var(--c-on-primary-container); 
}
.cta-button.secondary:hover { 
    background-color: #b8d9f5; 
}

/* --- SEZIONI --- */
.section { 
    padding: 60px 0; 
}
.section-highlighted { 
    background-color: var(--c-surface-variant); 
}
.section-title { 
    text-align: center; 
    margin-bottom: 40px; 
}

/* --- HERO SECTION --- */
.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-secondary) 100%);
    color: var(--c-on-primary);
    text-align: center;
}
.hero-title { 
    font-size: 2.8rem; 
    color: var(--c-on-primary); 
}
.hero-subtitle { 
    font-size: 1.1rem; 
    max-width: 650px; 
    margin: 1rem auto 2rem auto; 
    opacity: 0.9; 
}

/* --- FEATURE GRID (Perché Noi) --- */
.feature-grid { 
    display: grid; 
    gap: 30px; 
}
.feature-item { 
    text-align: center; 
}
.feature-icon { 
    font-size: 2.5rem; 
    display: block; 
    margin-bottom: 1rem; 
}

/* --- CARD --- */
.card {
    background-color: var(--c-surface);
    border-radius: var(--radius-large);
    padding: 24px;
    box-shadow: var(--shadow-1);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    height: 100%;
}
.card:hover { 
    transform: translateY(-5px); 
    box-shadow: var(--shadow-3); 
}

/* --- GRIDS --- */
.grid-3 { 
    display: grid; 
    gap: 30px; 
}
.grid-4 { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 20px; 
}

/* --- ELEMENTI SPECIFICI --- */
.service-card h3 { 
    color: var(--c-secondary); 
}
.card-link { 
    font-weight: 700; 
}
.staff-card { 
    text-align: center; 
    padding-top: 30px; 
}
.staff-card img {
    width: 120px; 
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 4px solid var(--c-surface);
    box-shadow: var(--shadow-2);
}
.staff-card h4 { 
    margin-bottom: 0.25rem; 
}
.staff-card p { 
    font-size: 0.9rem; 
    color: var(--c-on-surface-variant); 
    margin-bottom: 0; 
}

/* --- EFFETTO FADE-IN ON SCROLL --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- MENU MOBILE HAMBURGER --- */
.hamburger-menu { 
    display: block; 
    cursor: pointer; 
    background: transparent; 
    border: none; 
    z-index: 1001; 
}
.hamburger-menu span { 
    display: block; 
    width: 25px; 
    height: 3px; 
    margin: 5px 0; 
    background-color: var(--c-primary); 
    transition: all 0.3s ease-in-out; 
}
.hamburger-menu.active span:nth-child(1) { 
    transform: translateY(8px) rotate(45deg); 
}
.hamburger-menu.active span:nth-child(2) { 
    opacity: 0; 
}
.hamburger-menu.active span:nth-child(3) { 
    transform: translateY(-8px) rotate(-45deg); 
}

/* --- MENU DI NAVIGAZIONE --- */
.nav-menu {
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    align-items: center;
    position: fixed; 
    top: 0; 
    left: -100%;
    width: 100%; 
    height: 100vh;
    background-color: var(--c-background);
    transition: left 0.4s ease-in-out;
    z-index: 1000;
    list-style: none; /* Aggiunto per rimuovere i pallini */
    padding: 0; /* Aggiunto per rimuovere padding di default */
    margin: 0; /* Aggiunto per rimuovere margine di default */
}
.nav-menu.active { 
    left: 0; 
}
.nav-menu li { 
    margin: 1.5rem 0; 
}
.nav-menu a { 
    font-size: 1.5rem; 
}
.nav-cta { 
    display: none; 
}

/* --- STILI PAGINA SERVIZI --- */
.service-list .service-item {
    display: grid;
    gap: 2rem;
    align-items: center;
    margin-bottom: 5rem;
}
.service-item .service-image img {
    width: 100%;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-2);
}
.service-content .lead {
    font-size: 1.2rem;
    color: var(--c-on-surface-variant);
    margin-bottom: 2rem;
}
.service-content h3 {
    color: var(--c-secondary);
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-left: 3px solid var(--c-secondary);
    padding-left: 1rem;
}
.service-content ul {
    list-style-type: '✓ ';
    padding-left: 1.5rem;
}
.service-content ul li {
    padding-left: 0.5rem;
    margin-bottom: 0.75rem;
}
.cta-section {
    background: linear-gradient(135deg, var(--c-primary-container), var(--c-secondary-container));
}

/* --- STILI PAGINA CONTATTI --- */
.contact-grid {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr;
}
.contact-card {
    padding: 30px;
    background-color: var(--c-surface);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-1);
}
.contact-card .icon {
    font-size: 2rem;
    color: var(--c-primary);
    margin-bottom: 1rem;
    display: block; /* Aggiunto per dare spazio */
}
.contact-card h3 {
    margin-bottom: 1.5rem;
}
.map-container {
    margin-top: 4rem;
    box-shadow: var(--shadow-2);
    border-radius: var(--radius-large);
    overflow: hidden;
}
.faq-section {
    margin-top: 4rem;
}
.faq-item {
    border-bottom: 1px solid var(--c-outline);
    padding: 1.5rem 0;
}
.faq-item summary {
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    list-style: none; /* Rimuove la freccia di default */
}
.faq-item summary::-webkit-details-marker {
    display: none; /* Rimuove la freccia di default in Chrome/Safari */
}
.faq-item summary::after {
    content: '+';
    float: right;
    font-size: 1.5rem;
    transition: transform 0.2s;
}
.faq-item[open] summary::after {
    transform: rotate(45deg);
}
.faq-item div {
    padding-top: 1rem;
}

/* --- FOOTER --- */
.main-footer-section {
    background-color: var(--c-on-surface);
    color: var(--c-surface-variant);
    padding: 60px 0 0 0;
}
.footer-grid {
    display: grid;
    gap: 30px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--c-on-surface-variant);
}
.footer-col h4 { 
    color: var(--c-surface); 
}
.footer-col a { 
    color: var(--c-surface-variant); 
}
.footer-col a:hover { 
    color: var(--c-primary-container); 
}
.footer-col ul { 
    list-style: none; 
    padding: 0; 
}
.footer-col ul li { 
    margin-bottom: 0.5rem; 
}
.footer-bottom { 
    text-align: center; 
    padding: 20px 0; 
    font-size: 0.9rem; 
}


/* --- MEDIA QUERIES (RESPONSIVE BREAKPOINTS) --- */

/* Tablet (e schermi più grandi) */
@media (min-width: 768px) {
    h1, .hero-title { 
        font-size: 3.5rem; 
    }
    .section { 
        padding: 80px 0; 
    }
    .section-title { 
        margin-bottom: 60px; 
    }
    .nav-menu {
        position: static; 
        flex-direction: row; 
        height: auto; 
        width: auto;
        background-color: transparent; 
        left: 0; 
        transition: none;
        gap: 2rem; /* Aggiunto gap per desktop */
    }
    .nav-menu li { 
        margin: 0; 
    }
    .nav-menu a { 
        font-size: 1rem; 
    }
    .hamburger-menu { 
        display: none; 
    }
    .nav-cta { 
        display: inline-block; 
    }
    .feature-grid { 
        grid-template-columns: repeat(3, 1fr); 
    }
    .grid-3 { 
        grid-template-columns: repeat(3, 1fr); 
    }
    .grid-4 { 
        grid-template-columns: repeat(4, 1fr); 
        gap: 30px; 
    }
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop (e schermi più grandi) */
@media (min-width: 992px) {
    .service-list .service-item {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
    .service-list .service-item.reverse .service-content {
        order: 2;
    }
    .service-list .service-item.reverse .service-image {
        order: 1;
    }
    .contact-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}