/* ==========================================
   CSS VARIABLES & CORE (Tema Chiaro "Clean Tech")
========================================== */
:root {
    --bg-main: #f4f6f9;       /* Sfondo principale (grigio chiarissimo) */
    --bg-white: #ffffff;      /* Sfondo sezioni e card */
    --accent: #0265dc;        /* Blu Corporate vivace */
    --accent-hover: #0050b3;
    --text-dark: #1e293b;     /* Testo scuro principale */
    --text-muted: #64748b;    /* Testo secondario */
    --border-color: #e2e8f0;  /* Bordi leggeri */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 30px rgba(2, 101, 220, 0.15);

    --transition: 0.3s ease;
    --font-main: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* IL PATTERN DI SFONDO (Effetto CAD / Foglio Tecnico) */
body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    /* Pattern a pallini sottili */
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section { padding: 90px 0; }
.bg-white { background-color: var(--bg-white); }
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.w-100 { width: 100%; }

/* Typography */
h1, h2, h3, h4 { color: var(--text-dark); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 1rem; }
h2 { font-size: 2.5rem; }
.section-title p { color: var(--text-muted); font-size: 1.15rem; max-width: 700px; margin: 0 auto; }

/* ==========================================
   BUTTONS
========================================== */
.btn {
    display: inline-block; padding: 14px 28px; font-weight: 600; border-radius: 6px;
    cursor: pointer; transition: var(--transition); border: 1px solid transparent; text-decoration: none;
    text-align: center;
}
.btn-primary {
    background-color: var(--accent); color: #fff; box-shadow: 0 4px 15px rgba(2, 101, 220, 0.3);
}
.btn-primary:hover {
    background-color: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(2, 101, 220, 0.4);
}
.btn-outline {
    background-color: transparent; border-color: var(--accent); color: var(--accent);
}
.btn-outline:hover {
    background-color: rgba(2, 101, 220, 0.05); transform: translateY(-2px);
}

/* ==========================================
   NAVBAR (Bianca con ombra)
========================================== */
.navbar {
    position: fixed; top: 0; width: 100%; padding: 20px 0; z-index: 1000;
    transition: var(--transition); background: transparent;
}
.navbar.scrolled {
    padding: 12px 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05); border-bottom: 1px solid var(--border-color);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo a { font-size: 1.6rem; font-weight: 800; color: var(--text-dark); text-decoration: none; }
.logo strong { color: var(--accent); }

.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-menu ul { display: flex; gap: 25px; list-style: none; }
.nav-menu a { color: var(--text-dark); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: var(--transition); }
.nav-menu b { color: var(--text-white); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: var(--transition); }
.nav-menu ul a:hover { color: var(--accent); }

.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; z-index: 1001; }
.hamburger .bar { width: 25px; height: 3px; background-color: var(--text-dark); transition: 0.4s; }

/* ==========================================
   HERO (Con Immagine di Sfondo)
========================================== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    /* Immagine con overlay chiaro integrato */
    background-image: linear-gradient(rgba(244, 246, 249, 0.65), rgba(244, 246, 249, 0.75)), url('img/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* Effetto parallasse leggero allo scroll */
}
.hero-content { max-width: 750px; background: rgba(255,255,255, 0.6); padding: 40px; border-radius: 12px; backdrop-filter: blur(5px);}
.badge { display: inline-block; padding: 6px 15px; border: 1px solid rgba(2, 101, 220, 0.3); border-radius: 30px; font-size: 0.85rem; color: var(--accent); margin-bottom: 20px; background: rgba(2, 101, 220, 0.05); font-weight: 600; }
.hero h1 { font-size: 3.5rem; font-weight: 800; margin-bottom: 20px; color: var(--text-dark);}
.hero p { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 35px; }
.hero-buttons { display: flex; gap: 15px; }


/* ==========================================
   CHI SIAMO / OBIETTIVI (Nuova Sezione)
========================================== */
.vision-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.vision-text h2 { font-size: 2.2rem; margin-bottom: 25px; }
.vision-text p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 20px; }
.goals-title { font-size: 1.4rem; margin-bottom: 25px; color: var(--accent); }
.goals-container { display: flex; flex-direction: column; gap: 20px; }
.goal-card {
    display: flex; gap: 20px; background: var(--bg-main); padding: 25px; border-radius: 8px;
    border-left: 4px solid var(--accent); transition: var(--transition);
}
.goal-card:hover { transform: translateX(12px); background: #fff; box-shadow: var(--shadow-hover); border-color: var(--text-dark);}
.goal-icon { font-size: 2rem; font-weight: 800; color: rgba(2, 101, 220, 0.2); line-height: 1; }
.goal-content h4 { margin-bottom: 8px; font-size: 1.1rem; }
.goal-content p { font-size: 0.95rem; color: var(--text-muted); }

/* ==========================================
   SERVIZI (Cards chiare)
========================================== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }
.service-card {
    background: var(--bg-white); border: 1px solid var(--border-color); border-radius: 12px; padding: 40px 30px;
    transition: var(--transition); box-shadow: var(--shadow-soft);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.card-icon-top { font-size: 2.5rem; margin-bottom: 20px; }
.service-desc { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }
.specs-list { list-style: none; font-size: 0.9rem; color: var(--text-dark); }
.specs-list li { margin-bottom: 10px; position: relative; padding-left: 20px; }
.specs-list li::before { content: "•"; position: absolute; left: 0; color: var(--accent); font-weight: bold; font-size: 1.5rem; line-height: 0.8; }
/* Stili per i sotto-gruppi di macchinari nella card Stampa 3D */
.machine-group {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
}

.machine-group:first-of-type {
    margin-top: 10px;
    padding-top: 0;
    border-top: none;
}

.machine-title {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Badge opzionale per evidenziare la nuova stampante */
.new-badge {
    background: rgba(2, 101, 220, 0.1);
    color: var(--accent);
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 20px;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 0.5px;
}

/* ==========================================
   MATERIALI (Accordion Chiaro)
========================================== */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 50px;
    align-items: start;
}

@media (max-width: 768px) {
    .materials-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

.material-box {
    background: var(--bg-main); border: 1px solid var(--border-color); border-radius: 8px;
    overflow: hidden; transition: var(--transition);
    max-width: 450px;
    margin: 0 auto;
}
.material-box:hover { border-color: var(--accent); box-shadow: var(--shadow-soft); }

.material-img { width: 100%; height: 160px; object-fit: cover; border-bottom: 3px solid transparent; transition: var(--transition); }
.material-box:hover .material-img { border-color: var(--accent); }

.material-header { padding: 20px; }
.material-header h3 { font-size: 1.2rem; margin-bottom: 15px; }

.btn-toggle {
    width: 100%; background: #fff; border: 1px solid var(--border-color); color: var(--text-dark);
    padding: 10px 15px; border-radius: 10px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; transition: var(--transition);
}
.btn-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ==========================================
   MATERIALI (Nuovi Bottoni Soft UI)
========================================== */
.btn-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 28px;
    height: 28px;
    background: #fff;
    border-radius: 50%;
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 800;
    line-height: 1;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.26, 1.55), box-shadow 0.3s ease;
    /*box-shadow: 0 2px 5px rgba(0,0,0,0.1);*/
}
/*.btn-toggle:hover .btn-icon { box-shadow: 0 4px 10px rgba(0,0,0,0.15); }*/
.material-box.active .btn-icon {
    transform: rotate(45deg); /* Ruota il + formando una X */
    color: var(--accent);
}
.material-details { max-height: 0; opacity: 0; overflow: hidden; padding: 0 20px; transition: all 0.4s ease-in-out; }
.material-box.active .material-details { max-height: 800px; opacity: 1; padding: 0 20px 20px 20px; margin-top: 15px; }
.material-details p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 15px; }

.pros-cons { list-style: none; font-size: 0.85rem; }
.pros-cons li { margin-bottom: 10px; color: var(--text-dark); }
.pro { color: #059669; } .con { color: #e11d48; }

/* ==========================================
   PORTFOLIO SLIDER (Manuale con Frecce)
========================================== */
.portfolio-section { overflow: hidden; position: relative; }
.portfolio-slider { position: relative; display: flex; align-items: center; width: 100%; padding: 20px 0; }

.portfolio-slider::before, .portfolio-slider::after {
    content: ""; position: absolute; top: 0; width: 8%; height: 100%; z-index: 2; pointer-events: none;
}
.portfolio-slider::before { left: 0; background: linear-gradient(to right, var(--bg-main) 0%, transparent 100%); }
.portfolio-slider::after { right: 0; background: linear-gradient(to left, var(--bg-main) 0%, transparent 100%); }

.portfolio-track {
    display: flex;
    gap: 20px;
    width: 100%;
    padding: 10px;
}
.portfolio-track::-webkit-scrollbar { display: none; /* Nasconde scrollbar su Chrome/Safari */ }

.portfolio-item {
    flex: 0 0 auto; /* Evita che si restringano */
    scroll-snap-align: center; /* Allinea al centro allo scatto */
    position: relative; width: 350px; height: 260px; border-radius: 10px; overflow: hidden; cursor: pointer;
    border: 1px solid var(--border-color); box-shadow: var(--shadow-soft);
}
.portfolio-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; }
.portfolio-item:hover img { transform: scale(1.08); }

.portfolio-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%; padding: 30px 20px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
    transform: translateY(100%); transition: 0.4s ease;
}
.portfolio-item:hover .portfolio-overlay { transform: translateY(0); }
.portfolio-overlay h4 { color: #fff; font-size: 1.1rem; margin-bottom: 5px; }
.portfolio-overlay p { color: #60a5fa; font-size: 0.8rem; text-transform: uppercase; font-weight: 700; letter-spacing: 1px; }

/* Frecce di navigazione */
.slider-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 10;
    background: #fff; color: var(--accent); border: 1px solid var(--border-color);
    width: 50px; height: 50px; border-radius: 50%; font-size: 1.2rem; cursor: pointer;
    box-shadow: var(--shadow-soft); transition: var(--transition);
    display: flex; justify-content: center; align-items: center; outline: none;
}
.slider-arrow:hover { background: var(--accent); color: #fff; box-shadow: var(--shadow-hover); }
.slider-arrow.prev { left: 15px; }
.slider-arrow.next { right: 15px; }

@media (max-width: 768px) {
    /* Su mobile nascondiamo le frecce per privilegiare lo "swipe" col dito */
    .slider-arrow { display: none; }
}

/* ==========================================
   CONTATTI & FORM (Chiaro)
========================================== */
.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.contact-info h2 { font-size: 2.5rem; margin-bottom: 15px;}
.contact-info p { color: var(--text-muted); margin-bottom: 35px; font-size: 1.1rem; }
.info-blocks { display: flex; flex-direction: column; gap: 25px; }
.info-title { font-size: 0.85rem; text-transform: uppercase; color: var(--accent); font-weight: 700; letter-spacing: 1px; display: block; margin-bottom: 5px; }
.info-item p { color: var(--text-dark); margin: 0; font-size: 1rem; font-weight: 500;}

.contact-form-wrapper { background: var(--bg-white); padding: 40px; border-radius: 12px; box-shadow: var(--shadow-soft); border: 1px solid var(--border-color); }
.input-group { margin-bottom: 20px; }
.contact-form-wrapper input, .contact-form-wrapper select, .contact-form-wrapper textarea {
    width: 100%; padding: 15px; background: var(--bg-main); border: 1px solid var(--border-color);
    border-radius: 6px; color: var(--text-dark); font-family: var(--font-main); transition: var(--transition);
}
.contact-form-wrapper input:focus, .contact-form-wrapper textarea:focus, .contact-form-wrapper select:focus {
    outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(2, 101, 220, 0.1);
}

/* ==========================================
   FOOTER & ANIMAZIONI
========================================== */
.main-footer { padding: 40px 0; border-top: 1px solid var(--border-color); margin-top: 50px; font-size: 0.9rem; color: var(--text-muted); background: #fff;}
.footer-sub { font-size: 0.8rem; margin-top: 10px; }

.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: 0.7s ease-out; }
.animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.15s; } .delay-2 { transition-delay: 0.3s; } .delay-3 { transition-delay: 0.45s; }

/* ==========================================
   RESPONSIVE DESIGN
========================================== */
@media (max-width: 992px) {
    .vision-grid, .services-grid, .contact-container { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.8rem; }
    .hero-content { padding: 25px; }
    .goals-container { margin-top: 20px; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    .nav-menu {
        position: fixed; top: 0; right: -100%; width: 100%; height: 100vh;
        background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(10px);
        flex-direction: column; justify-content: center; transition: 0.4s ease;
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
    }
    .nav-menu.active { right: 0; }
    .nav-menu ul { flex-direction: column; text-align: center; }
    .nav-menu ul a { font-size: 1.2rem; }

    .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .hero-buttons { flex-direction: column; }
    .portfolio-overlay { transform: translateY(0); padding: 15px; }
    .contact-form-wrapper { padding: 25px; }
}

/* ==========================================
   MINI-SLIDER STAMPANTI (Nella card Servizi)
========================================== */
.machine-carousel { position: relative; overflow: hidden; display: flex; flex-direction: column; }
.machine-slide { display: none; animation: fadeSlide 0.4s ease forwards; }
.machine-slide.active { display: block; }

.machine-title { font-size: 1.05rem; color: var(--text-dark); margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.new-badge { background: rgba(2, 101, 220, 0.1); color: var(--accent); font-size: 0.7rem; padding: 3px 8px; border-radius: 20px; text-transform: uppercase; font-weight: 800; }

.carousel-controls { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 15px; border-top: 1px solid var(--border-color); }
.mini-arrow { background: transparent; border: none; color: var(--accent); font-size: 1.2rem; cursor: pointer; transition: transform var(--transition); }
.mini-arrow:hover { transform: scale(1.3); }

.carousel-dots { display: flex; gap: 6px; }
.carousel-dots .dot { width: 8px; height: 8px; background: var(--border-color); border-radius: 50%; transition: var(--transition); }
.carousel-dots .dot.active { background: var(--accent); width: 16px; border-radius: 10px; }

@keyframes fadeSlide { from { opacity: 0; transform: translateX(10px); } to { opacity: 1; transform: translateX(0); } }

/* ==========================================
   MAPPA & FILE UPLOAD
========================================== */
.map-container { margin-top: 30px; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-soft); border: 1px solid var(--border-color); }

.file-label { display: block; margin-bottom: 8px; font-size: 0.9rem; font-weight: 600; color: var(--text-dark); }
.file-input { background: #fff !important; padding: 10px !important; border: 1px dashed var(--accent) !important; cursor: pointer; font-size: 0.85rem;}
.file-input::file-selector-button {
    background: rgba(2, 101, 220, 0.1); color: var(--accent); border: none; padding: 8px 15px;
    border-radius: 4px; cursor: pointer; margin-right: 15px; transition: var(--transition); font-weight: 600;
}
.file-input::file-selector-button:hover { background: var(--accent); color: #fff; }

.footer-img { height: 100px; object-fit: cover; }