/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --accent: #1e3a5f;
  --accent-light: #e6f8f7;
  --teal: #4ecdc8;
  --blue: #2b7fd4;
  --gradient: linear-gradient(135deg, #4ecdc8 0%, #2b7fd4 100%);
  --gradient-dark: linear-gradient(135deg, #2a9d97 0%, #1762bf 100%);
  --dark: #0d1f3c;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.10);
}

html { font-size: 16px; }
body { font-family: 'Inter', sans-serif; background: var(--gray-50); color: var(--gray-900); line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }
h1, h2 { font-family: var(--font-display); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
main { flex: 1; }

/* ── Navbar ───────────────────────────────────────────────── */
.navbar { background: var(--white); border-bottom: 1px solid var(--gray-200); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.75rem; font-weight: 600; letter-spacing: -.5px; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-link { font-size: .9rem; color: var(--gray-600); font-weight: 400; transition: color .15s; }
.nav-link:hover { color: var(--teal); }
.btn-nav { font-size: .85rem; font-weight: 500; padding: 7px 16px; background: var(--gradient); color: var(--white); border-radius: 6px; transition: transform .2s, box-shadow .2s; }
.btn-nav:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(43,127,212,.3); }

/* ── Flash ────────────────────────────────────────────────── */
.flash-container { max-width: 1200px; margin: 16px auto 0; padding: 0 24px; display: flex; flex-direction: column; gap: 8px; }
.flash { padding: 12px 16px; border-radius: var(--radius); font-size: .9rem; border: 1px solid; }
.flash-message, .flash-info { background: var(--accent-light); border-color: #a0e8e5; color: #1a5c5a; }
.flash-success { background: #ecfdf5; border-color: #6ee7b7; color: #065f46; }
.flash-error { background: #fef2f2; border-color: #fca5a5; color: #991b1b; }
.flash-warning { background: #fffbeb; border-color: #fcd34d; color: #92400e; }

/* ── Nav user ─────────────────────────────────────────────── */
.nav-user { font-size: .85rem; color: var(--gray-600); font-weight: 500; padding: 4px 10px; background: var(--gray-100); border-radius: 20px; }

/* ── Footer ───────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--gray-200); background: var(--white); margin-top: 0; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 20px 24px; font-size: .8rem; color: var(--gray-400); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-nexus { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--gray-400); }
.footer-nexus strong { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-weight: 600; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary { padding: 12px 24px; background: var(--gradient); color: var(--white); border-radius: 8px; font-size: .9rem; font-weight: 500; transition: transform .2s, box-shadow .2s; display: inline-block; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(43,127,212,.35); }
.btn-outline { padding: 12px 24px; border: 1.5px solid var(--gray-200); color: var(--gray-600); border-radius: 8px; font-size: .9rem; font-weight: 500; transition: border-color .15s, color .15s; }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }
.btn-outline-white { border-color: rgba(255,255,255,.4); color: var(--white); }
.btn-outline-white:hover { border-color: var(--white); color: var(--white); }

/* ── Section label ────────────────────────────────────────── */
.section-label { font-size: .75rem; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); margin-bottom: 12px; }

/* ── Hero dark (homepage) ─────────────────────────────────── */
.hero-dark { background: var(--gradient-dark); position: relative; overflow: hidden; }
.hero-dark .hero-inner { max-width: 1200px; margin: 0 auto; padding: 100px 24px 90px; position: relative; z-index: 1; }
.hero-dark .hero-label { font-size: .75rem; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,.85); margin-bottom: 16px; text-shadow: 0 1px 8px rgba(0,0,0,0.25); }
.hero-dark h1 { font-size: 3.5rem; font-weight: 700; line-height: 1.15; color: var(--white); margin-bottom: 20px; letter-spacing: -.5px; text-shadow: 0 2px 16px rgba(0,0,0,0.22); }
.hero-dark p { font-size: 1rem; color: rgba(255,255,255,.75); line-height: 1.8; margin-bottom: 36px; text-shadow: 0 1px 8px rgba(0,0,0,0.20); }
.hero-dark .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-text { max-width: 580px; }
/* Bottoni su sezioni gradient-dark: primario bianco, outline bianco */
.hero-dark .btn-primary,
.fornitori-collab .btn-primary,
.cta-finale .btn-primary { background: white; color: var(--dark); box-shadow: none; }
.hero-dark .btn-primary:hover,
.fornitori-collab .btn-primary:hover,
.cta-finale .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.2); }
.hero-dark .btn-outline { border-color: rgba(255,255,255,.4); color: rgba(255,255,255,.9); }
.hero-dark .btn-outline:hover { border-color: white; color: white; }
.hero-network { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.hero-network svg { width: 100%; height: 100%; }

/* ── Hero entrance animations ─────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-dark .hero-label   { animation: fadeInUp .55s ease both; }
.hero-dark h1            { animation: fadeInUp .55s .1s ease both; }
.hero-dark p             { animation: fadeInUp .55s .2s ease both; }
.hero-dark .hero-actions { animation: fadeInUp .55s .3s ease both; }
.hero-network            { animation: fadeInUp .7s .2s ease both; }

/* ── SVG network pulse ────────────────────────────────────── */
@keyframes node-pulse { 0%,100% { opacity:1; } 50% { opacity:.65; } }
@keyframes edge-flow  { 0%,100% { opacity:1; } 50% { opacity:.5; } }
.hero-network svg circle { animation: node-pulse 4s ease-in-out infinite; }
.hero-network svg circle:nth-of-type(2)  { animation-delay: .4s; }
.hero-network svg circle:nth-of-type(3)  { animation-delay: .8s; }
.hero-network svg circle:nth-of-type(4)  { animation-delay: 1.2s; }
.hero-network svg circle:nth-of-type(5)  { animation-delay: 1.6s; }
.hero-network svg circle:nth-of-type(6)  { animation-delay: 2.0s; }
.hero-network svg circle:nth-of-type(7)  { animation-delay: 2.4s; }
.hero-network svg circle:nth-of-type(8)  { animation-delay: 0.2s; }
.hero-network svg circle:nth-of-type(9)  { animation-delay: 0.6s; }
.hero-network svg circle:nth-of-type(10) { animation-delay: 1.0s; }
.hero-network svg line { animation: edge-flow 5s ease-in-out infinite; }

/* ── Vantaggio ────────────────────────────────────────────── */
.vantaggio { background: var(--white); border-bottom: 1px solid var(--gray-200); padding: 80px 24px; }
.vantaggio-inner { max-width: 1200px; margin: 0 auto; }
.vantaggio-inner h2 { font-size: 2.3rem; font-weight: 700; color: var(--gray-900); margin-bottom: 12px; letter-spacing: -.3px; }
.vantaggio-intro { font-size: .95rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 48px; max-width: 640px; }
.vantaggio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.vantaggio-card { padding: 28px; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 12px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.vantaggio-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.09); border-color: rgba(78,205,200,.5); }
.vantaggio-card h3 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; color: var(--gray-900); }
.vantaggio-card p { font-size: .85rem; color: var(--gray-600); line-height: 1.6; }

/* ── Feature icon ─────────────────────────────────────────── */
.feature-icon { width: 52px; height: 52px; background: var(--gradient); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; box-shadow: 0 4px 12px rgba(43,127,212,.25); }
.feature-icon svg { width: 26px; height: 26px; stroke: white; }

/* ── Come funziona ────────────────────────────────────────── */
.come-funziona { padding: 80px 24px; background: var(--gray-50); }
.come-funziona-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.come-funziona-inner h2 { font-size: 2.3rem; font-weight: 700; color: var(--gray-900); margin-bottom: 48px; letter-spacing: -.3px; }
.steps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 60px; text-align: left; }
.step-num { width: 48px; height: 48px; background: var(--gradient); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; }
.step h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; color: var(--gray-900); }
.step p { font-size: .85rem; color: var(--gray-600); line-height: 1.6; }

/* ── Fornitori collab ─────────────────────────────────────── */
.fornitori-collab { background: var(--gradient-dark); padding: 80px 24px; }
.fornitori-collab-inner { max-width: 720px; margin: 0 auto; text-align: center; }
.fornitori-collab .section-label { color: rgba(255,255,255,.85); }
.fornitori-collab h2 { font-size: 2.3rem; font-weight: 700; color: var(--white); margin-bottom: 20px; letter-spacing: -.3px; }
.fornitori-collab p { font-size: .95rem; color: rgba(255,255,255,.65); line-height: 1.8; margin-bottom: 36px; }

/* ── Servizi aggiuntivi ───────────────────────────────────── */
.servizi { background: var(--gray-50); padding: 80px 24px; border-bottom: 1px solid var(--gray-200); }
.servizi-inner { max-width: 1200px; margin: 0 auto; }
.servizi-inner h2 { font-size: 2.3rem; font-weight: 700; color: var(--gray-900); margin-bottom: 48px; letter-spacing: -.3px; }
.servizi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.servizio-card { padding: 28px; background: var(--white); border: 1px solid var(--gray-200); border-radius: 12px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.servizio-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.09); border-color: rgba(78,205,200,.5); }
.servizio-card h3 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; color: var(--gray-900); }
.servizio-card p { font-size: .85rem; color: var(--gray-600); line-height: 1.6; }

/* ── Fornitori ────────────────────────────────────────────── */
.fornitori-section { padding: 80px 24px; background: var(--white); border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }
.fornitori-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.fornitori-inner h2 { font-size: 2.3rem; font-weight: 700; color: var(--gray-900); margin-bottom: 40px; letter-spacing: -.3px; }
.fornitori-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.fornitore-card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px 16px; text-align: center; }
.fornitore-icon { width: 48px; height: 48px; background: var(--gradient); color: var(--white); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 700; margin: 0 auto 14px; }
.fornitore-nome { font-size: .95rem; font-weight: 600; color: var(--gray-900); margin-bottom: 6px; }
.fornitore-desc { font-size: .78rem; color: var(--gray-600); line-height: 1.5; }
.fornitori-locked { background: var(--gray-50); border: 1.5px dashed var(--gray-200); border-radius: 12px; padding: 40px 24px; text-align: center; }
.fornitori-locked-icon { width: 56px; height: 56px; background: var(--gray-100); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; color: var(--gray-400); }
.fornitori-locked p { font-size: .9rem; color: var(--gray-600); margin-bottom: 24px; }
.fornitori-locked-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── CTA finale ───────────────────────────────────────────── */
.cta-finale { background: var(--gradient-dark); padding: 80px 24px; }
.cta-finale-inner { max-width: 640px; margin: 0 auto; text-align: center; }
.cta-finale h2 { font-size: 2.3rem; font-weight: 700; color: var(--white); margin-bottom: 16px; letter-spacing: -.3px; }
.cta-finale p { font-size: .95rem; color: rgba(255,255,255,.65); line-height: 1.7; margin-bottom: 36px; }
.cta-finale-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-contact { font-size: .82rem; color: rgba(255,255,255,.4); margin-top: 20px; }
.cta-contact a { color: var(--teal); }

/* ── Scroll reveal ────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }

/* ── Catalogo ─────────────────────────────────────────────── */
.catalogo-layout { max-width: 1200px; margin: 0 auto; padding: 40px 24px; display: grid; grid-template-columns: 220px 1fr; gap: 40px; }
.filtri-sidebar h3 { font-size: .75rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--gray-400); margin-bottom: 8px; margin-top: 0; }
.filtri-sidebar select { width: 100%; padding: 8px 12px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .85rem; font-family: inherit; color: var(--gray-800); background: var(--white); appearance: none; cursor: pointer; }
.filtri-sidebar select:focus { outline: none; border-color: var(--teal); }
.filtro-group { margin-bottom: 0; }
.filtro-fornitore { margin-bottom: 4px; }
.filtro-separator { border: none; border-top: 1px solid var(--gray-200); margin: 16px 0; }
.filtro-sub-tree { margin-top: 12px; padding-left: 14px; border-left: 2px solid var(--teal); display: flex; flex-direction: column; gap: 20px; opacity: .55; transition: opacity .2s; }
.filtro-sub-tree .filtro-sub-tree { margin-top: 0; }
.filtro-sub-tree.active { opacity: 1; }
.catalogo-topbar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.btn-filtri-mobile { display: none; align-items: center; gap: 6px; padding: 8px 14px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .85rem; font-weight: 500; background: var(--white); color: var(--gray-600); cursor: pointer; white-space: nowrap; }
.btn-filtri-mobile:hover { border-color: var(--teal); color: var(--teal); }
.search-bar { display: flex; gap: 8px; flex: 1; }
.search-bar input { flex: 1; padding: 10px 16px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .9rem; font-family: inherit; }
.search-bar input:focus { outline: none; border-color: var(--teal); }
.search-bar button { padding: 10px 20px; background: var(--gradient); color: var(--white); border: none; border-radius: 8px; font-size: .85rem; font-weight: 500; cursor: pointer; }
.catalogo-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.risultati-count { font-size: .82rem; color: var(--gray-400); }
.reset-filtri { font-size: .82rem; color: var(--teal); font-weight: 500; }
.reset-filtri:hover { text-decoration: underline; }
.prodotti-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.prodotto-card { background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-200); overflow: hidden; transition: box-shadow .2s, transform .2s; cursor: pointer; }
.prodotto-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-img { aspect-ratio: 1; background: var(--gray-100); overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s; }
.prodotto-card:hover .card-img img { transform: scale(1.04); }
.card-body { padding: 14px; }
.card-sku { font-size: .7rem; color: var(--gray-400); font-weight: 500; letter-spacing: .5px; margin-bottom: 4px; }
.card-nome { font-size: .82rem; font-weight: 500; color: var(--gray-800); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-prezzo { margin-top: 10px; font-size: .85rem; font-weight: 600; color: var(--teal); }
.card-lock { margin-top: 10px; font-size: .75rem; color: var(--gray-400); display: flex; align-items: center; gap: 4px; }
.empty-state { grid-column: 1/-1; text-align: center; padding: 80px 0; color: var(--gray-400); }
.empty-state p { margin-top: 8px; font-size: .9rem; }

/* ── Scheda prodotto ──────────────────────────────────────── */
.prodotto-page { max-width: 1100px; margin: 0 auto; padding: 40px 24px; }
.breadcrumb { font-size: .8rem; color: var(--gray-400); margin-bottom: 32px; }
.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--teal); }
.prodotto-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.gallery-main { aspect-ratio: 1; background: var(--gray-100); border-radius: 12px; overflow: hidden; margin-bottom: 12px; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.thumb { width: 64px; height: 64px; border-radius: 6px; overflow: hidden; border: 2px solid transparent; cursor: pointer; background: var(--gray-100); }
.thumb.active, .thumb:hover { border-color: var(--teal); }
.thumb img { width: 100%; height: 100%; object-fit: contain; }
.prodotto-info .sku { font-size: .75rem; color: var(--gray-400); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; }
.prodotto-info h1 { font-size: 1.5rem; font-weight: 600; line-height: 1.3; margin-bottom: 20px; }
.prodotto-prezzo { font-size: 1.6rem; font-weight: 600; color: var(--teal); margin-bottom: 24px; }
.prodotto-lock { display: inline-flex; align-items: center; gap: 8px; background: var(--gray-100); border-radius: 8px; padding: 12px 16px; font-size: .85rem; color: var(--gray-600); margin-bottom: 24px; }
.prodotto-fornitore { font-size: .85rem; color: var(--gray-600); margin-bottom: 24px; }
.prodotto-fornitore strong { color: var(--gray-800); }
.prodotto-desc { border-top: 1px solid var(--gray-200); padding-top: 24px; }
.prodotto-desc h3 { font-size: .75rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--gray-400); margin-bottom: 12px; }
.prodotto-desc p { font-size: .9rem; color: var(--gray-600); line-height: 1.8; white-space: pre-line; }

/* ── Contatti ─────────────────────────────────────────────── */
.contatti-page { max-width: 1100px; margin: 0 auto; padding: 60px 24px 80px; }
.contatti-header { max-width: 600px; margin-bottom: 56px; }
.contatti-header h1 { font-size: 2.2rem; font-weight: 600; margin-bottom: 12px; letter-spacing: -.3px; }
.contatti-header p { font-size: .95rem; color: var(--gray-600); line-height: 1.7; }
.contatti-layout { display: grid; grid-template-columns: 1fr 380px; gap: 60px; align-items: start; }
.contatti-form .form-group { margin-bottom: 20px; }
.contatti-form textarea { width: 100%; padding: 10px 14px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .9rem; font-family: inherit; resize: vertical; transition: border-color .15s; }
.contatti-form textarea:focus { outline: none; border-color: var(--teal); }
.contatti-form select { width: 100%; padding: 10px 14px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .9rem; font-family: inherit; background: var(--white); color: var(--gray-800); appearance: none; cursor: pointer; }
.contatti-form select:focus { outline: none; border-color: var(--teal); }
.contatti-info { display: flex; flex-direction: column; gap: 20px; }
.contatti-info-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: 12px; padding: 24px; }
.contatti-info-card h3 { font-size: .9rem; font-weight: 600; margin-bottom: 6px; }
.contatti-info-card p { font-size: .85rem; color: var(--gray-600); line-height: 1.5; }
.contatti-info-card a { color: var(--teal); }
.contatti-info-card a:hover { text-decoration: underline; }

/* ── Auth forms ───────────────────────────────────────────── */
.auth-page { max-width: 420px; margin: 80px auto; padding: 0 24px; }
.auth-page h1 { font-size: 1.6rem; font-weight: 600; margin-bottom: 8px; }
.auth-page .subtitle { font-size: .9rem; color: var(--gray-600); margin-bottom: 32px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .82rem; font-weight: 500; color: var(--gray-700, #374151); margin-bottom: 6px; }
.form-group input { width: 100%; padding: 10px 14px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: .9rem; font-family: inherit; transition: border-color .15s; }
.form-group input:focus { outline: none; border-color: var(--teal); }
.btn-submit { width: 100%; padding: 12px; background: var(--gradient); color: var(--white); border: none; border-radius: 8px; font-size: .95rem; font-weight: 500; cursor: pointer; transition: opacity .15s; margin-top: 8px; }
.btn-submit:hover { opacity: .85; }
.auth-footer { text-align: center; margin-top: 24px; font-size: .85rem; color: var(--gray-600); }
.auth-footer a { color: var(--teal); font-weight: 500; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-dark .hero-inner { padding: 60px 20px 52px; }
  .hero-dark h1 { font-size: 2.2rem; }
  .hero-network { opacity: 0.5; }
  .features-inner { grid-template-columns: 1fr; gap: 24px; }
  .catalogo-layout { grid-template-columns: 1fr; }
  .filtri-sidebar { display: none; }
  .filtri-sidebar.aperta { display: block; }
  .btn-filtri-mobile { display: flex; }
  .prodotto-layout { grid-template-columns: 1fr; gap: 32px; }
  .nav-user { display: none; }
  .steps-grid { grid-template-columns: 1fr; gap: 28px; }
  .nav-logo { font-size: 1.25rem; }
  .fornitori-grid { grid-template-columns: repeat(2, 1fr); }
  .come-funziona-inner h2, .fornitori-inner h2, .cta-finale h2,
  .vantaggio-inner h2, .fornitori-collab h2, .servizi-inner h2 { font-size: 1.7rem; }
  .vantaggio-grid, .servizi-grid { grid-template-columns: 1fr; }
  .steps-4 { flex-direction: column; align-items: center; }
  .contatti-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { flex-direction: column; gap: 8px; }
}