/* --- VARIABILI COLORE (Derivate dal Logo) --- */
:root {
    --primary-blue: #7DD3FC;
    --tech-white: #FFFFFF;
    --bg-dark: #333;
    --bg-card: #111111;
    --text-muted: #A1A1AA;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-stack); background-color: var(--bg-dark); color: var(--tech-white); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 5%; color: #dbdbdb; }
strong { color: #fff; }
section { padding: 70px 0; }

/* HEADER */
header { background-color: rgba(0,0,0,0.9); backdrop-filter: blur(10px); position: fixed; width: 100%; top: 0; z-index: 1000; border-bottom: 1px solid rgba(125,211,252,0.1); }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 80px; gap: 30px; }
.logo-container img { height: 60px; display: block; }
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a { font-size: 0.85rem; font-weight: 500; letter-spacing: 1px; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary-blue); }

/* TYPOGRAPHY */
h1 { font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -2px; margin-bottom: 1.5rem; color: #fff; }
h2 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; letter-spacing: -1px; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; color: var(--primary-blue); }
p { margin-bottom: 1.5rem; }
.lead { font-size: 1.25rem; color: var(--tech-white); }

/* BUTTONS */
.btn { display: inline-block; padding: 0.75rem 2rem; border-radius: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; font-size: 0.8rem; border: 2px solid transparent; }
.btn-primary { background-color: var(--primary-blue); color: var(--bg-dark); }
.btn-primary:hover { background-color: transparent; border-color: var(--primary-blue); color: var(--primary-blue); }
.btn-secondary { background-color: transparent; border-color: rgba(255,255,255,0.2); color: var(--tech-white); }
.btn-secondary:hover { border-color: var(--primary-blue); color: var(--primary-blue); }
.btn-sm { padding: 0.5rem 1.25rem; font-size: 0.75rem; }

/* CARDS */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.card { background-color: var(--bg-card); padding: 2.5rem; border-radius: 8px; border: 1px solid rgba(255,255,255,0.03); transition: var(--transition); }
.card:hover { border-color: rgba(125,211,252,0.3); transform: translateY(-5px); }

/* CLICKABLE CARD LINKS */
.card-link { display: block; text-decoration: none; color: inherit; }
.card-link .card { height: 100%; cursor: pointer; position: relative; padding-bottom: 3.5rem; }
.card-link .card::after { content: 'Scopri di più \2192'; position: absolute; bottom: 1.5rem; left: 2.5rem; font-size: 0.78rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--primary-blue); opacity: 0; transform: translateX(-6px); transition: var(--transition); }
.card-link:hover .card::after { opacity: 1; transform: translateX(0); }
.card-link:hover .card { border-color: rgba(125,211,252,0.5); transform: translateY(-6px); box-shadow: 0 12px 40px rgba(125,211,252,0.08); }

/* HERO */
.hero { height: 100vh; display: flex; align-items: center; padding-top: 80px; background-size: cover; background-position: center; background-attachment: fixed; position: relative; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,0,0,0.40) 0%, rgba(0,20,40,0.88) 60%); z-index: 0; }
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 800px; }
.hero-content img { max-width: 100%; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; }

/* PAGE HEADERS */
.page-header { padding-top: 180px; padding-bottom: 80px; background-size: cover; background-position: center; background-attachment: fixed; border-bottom: 1px solid rgba(255,255,255,0.03); position: relative; }
.page-header::before { content: ''; position: absolute; top:1px !important; inset: 0; height:100%; background: linear-gradient(180deg, rgba(125,211,252,0.4) 0%, rgba(17,17,17,0.90) 80%); z-index: 0; }
.page-header .container { position: relative; z-index: 1; }

/* FEATURES LIST */
.features-list { list-style: none; margin: 2rem 0; display: grid; gap: 1rem; }
.features-list li { display: flex; align-items: flex-start; gap: 0.75rem; padding: 1rem 1.25rem; background-color: var(--bg-card); border-radius: 6px; border-left: 3px solid var(--primary-blue); max-width: 100%; }
.features-list li::before { content: '\2756'; color: var(--primary-blue); font-size: 0.75rem; margin-top: 0.25rem; flex-shrink: 0; }

/* CTA SECTION */
.cta-section { margin-top: 4rem; padding: 3.5rem; background: linear-gradient(135deg, rgba(125,211,252,0.06) 0%, rgba(0,0,0,0.3) 100%); border: 1px solid rgba(125,211,252,0.15); border-radius: 12px; text-align: center; }
.cta-section h2 { color: #fff; margin-bottom: 1rem; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.5px; }
.cta-section p { color: var(--text-muted); margin: 0 auto 2rem; font-size: 1.1rem; }

/* INFO CARDS */
.info-card { background-color: var(--bg-card); padding: 2rem; border-radius: 8px; border: 1px solid rgba(255,255,255,0.05); }
.info-card h4 { color: var(--primary-blue); font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.5px; }

/* SERVICES OVERVIEW */
.services-overview { background-color: #2a2a2a; }

/* CONTACT FORM */
.contact-form { display: grid; gap: 1.5rem; max-width: 600px; }
.form-group input, .form-group textarea { width: 100%; padding: 1rem; background-color: var(--bg-card); border: 1px solid rgba(255,255,255,0.1); border-radius: 4px; color: var(--tech-white); font-family: var(--font-stack); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-blue); }

/* FOOTER */
footer { background-color: #5b5b5b; padding: 50px 0; border-top: 1px solid rgba(255,255,255,0.03); margin-top: auto; }
.footer-container { display: flex; justify-content: space-between; align-items: center; color: var(--text-muted); font-size: 0.9rem; }

/* RESPONSIVE */
.menu-toggle, .hamburger { display: none; }

@media (max-width: 1024px) {
    .nav-container { height: 100px; }
    .hamburger { display: flex; flex-direction: column; gap: 6px; cursor: pointer; z-index: 2000; padding: 10px; }
    .hamburger span { display: block; width: 30px; height: 3px; background-color: #fff; transition: var(--transition); border-radius: 2px; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 80%; height: 100vh; background-color: var(--bg-card); display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 2rem; box-shadow: -10px 0 30px rgba(0,0,0,0.1); transition: var(--transition); z-index: 1500; }
    .nav-links a { font-size: 1.2rem; }
    .menu-toggle:checked ~ .nav-links { right: 0; }
    .menu-toggle:checked ~ .hamburger span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle:checked ~ .hamburger span:nth-child(2) { opacity: 0; }
    .menu-toggle:checked ~ .hamburger span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    .page-header, .hero { background-attachment: scroll; }
    .cta-section { padding: 2rem 1.5rem; }
    .footer-container { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 600px) {
    .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    h1 { letter-spacing: -1px; }
}