/* ═══════════════════════════════════════════
   VPCOM — LANDING PAGE
   Dark theme · Glassmorphism · Blue-Teal
════════════════════════════════════════════ */

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

:root {
  --bg:          #06091a;
  --bg-2:        #0b1023;
  --glass:       rgba(255, 255, 255, 0.04);
  --glass-hover: rgba(255, 255, 255, 0.07);
  --border:      rgba(255, 255, 255, 0.08);
  --border-acc:  rgba(34, 211, 238, 0.25);

  --grad:        linear-gradient(135deg, #1d4ed8 0%, #0e7490 100%);
  --grad-text:   linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);

  --accent:      #22d3ee;
  --blue:        #3b82f6;

  --text:        #f1f5f9;
  --text-2:      #94a3b8;
  --text-3:      #475569;

  --radius:      16px;
  --radius-sm:   10px;
  --shadow:      0 24px 48px rgba(0, 0, 0, 0.5);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a  { text-decoration: none; }
ul { list-style: none; }

/* ─── LAYOUT ─────────────────────────────── */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── UTILITIES ──────────────────────────── */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-2);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 100px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* ─── BUTTONS ────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 20px rgba(29, 78, 216, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(29, 78, 216, 0.55);
}
.btn-ghost {
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--glass-hover);
  transform: translateY(-2px);
}
.btn-full { width: 100%; }

/* ─── NAVBAR ─────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 22px 0;
  transition: padding 0.3s, background 0.3s, border-color 0.3s;
}
.navbar.scrolled {
  padding: 14px 0;
  background: rgba(6, 9, 26, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-2);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.btn-nav {
  padding: 8px 18px;
  background: var(--grad);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
}
.nav-links a.btn-nav:hover { opacity: 0.88; transform: none; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 5px 13px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.05em;
  transition: background 0.2s, color 0.2s;
}
.lang-switch:hover {
  background: var(--glass-hover);
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── HERO ───────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 130px 0 100px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.hero-orb-1 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(29, 78, 216, 0.45) 0%, transparent 65%);
  top: -160px;
  left: -120px;
}
.hero-orb-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(14, 116, 144, 0.4) 0%, transparent 65%);
  top: 80px;
  right: -100px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 0%, transparent 100%);
}

/* Hero split layout */
.hero-split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-text {
  /* left column */
}

.hero-visual {
  /* right column */
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-2);
  margin-bottom: 32px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  flex-shrink: 0;
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.75;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}

/* ─── SCREENSHOT FRAME ───────────────────── */
.screenshot-frame {
  position: relative;
  background: #0d1117;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 40px 80px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(34, 211, 238, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.screenshot-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.screenshot-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}
.screenshot-dot:nth-child(1) { background: rgba(255, 95, 86, 0.6); }
.screenshot-dot:nth-child(2) { background: rgba(255, 189, 46, 0.6); }
.screenshot-dot:nth-child(3) { background: rgba(39, 201, 63, 0.6); }

.screenshot-label {
  margin-left: 8px;
  font-size: 0.72rem;
  color: var(--text-3);
  font-family: 'Inter', monospace;
  letter-spacing: 0.02em;
}

.screenshot-frame img {
  width: 100%;
  display: block;
}

.screenshot-sm {
  margin-bottom: 24px;
}
.screenshot-sm img {
  max-height: 220px;
  object-fit: cover;
  object-position: top;
}

/* ─── FEATURES ───────────────────────────── */
.features {
  padding: 120px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}
.feature-card:hover {
  background: var(--glass-hover);
  border-color: var(--border-acc);
  transform: translateY(-5px);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: rgba(29, 78, 216, 0.12);
  border: 1px solid rgba(29, 78, 216, 0.18);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ─── PRODUCT SECTIONS ───────────────────── */
.product {
  padding: 120px 0;
  position: relative;
}
.product-alt {
  background: var(--bg-2);
}

.product-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.product-reverse .product-visual {
  order: -1;
}

.product-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  line-height: 1.2;
}
.product-content > p {
  color: var(--text-2);
  font-size: 0.97rem;
  line-height: 1.75;
  margin-bottom: 30px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-2);
}
.check {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Modules stack */
.modules-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 14px;
}

.modules-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.module-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: border-color 0.25s, background 0.25s;
  animation: fadeSlideIn 0.5s ease both;
  animation-delay: var(--delay);
}
.module-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.module-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--grad);
  flex-shrink: 0;
}

.module-name {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 2px;
}
.module-card small {
  display: block;
  color: var(--text-2);
  font-size: 0.78rem;
}

/* CC grid */
.cc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.cc-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}
.cc-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
  transform: translateY(-3px);
}
.cc-icon {
  color: var(--accent);
  margin-bottom: 10px;
}
.cc-card h4 {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 5px;
}
.cc-card p {
  color: var(--text-2);
  font-size: 0.8rem;
  line-height: 1.55;
}

/* ─── TERMINALI IP ───────────────────────── */
.phones {
  padding: 120px 0;
}

.phones-hero {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 48px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.phones-hero img {
  width: 100%;
  display: block;
}

.phones-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.phone-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
}
.phone-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
  transform: translateY(-5px);
}

.phone-card-img {
  overflow: hidden;
  height: 240px;
  background: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
}
.phone-card-img--white {
  background: #f8f9fa;
}
.phone-card-img img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
  padding: 12px;
}
.phone-card:hover .phone-card-img img {
  transform: scale(1.05);
}

.phone-card-body {
  padding: 22px;
}
.phone-model-tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.18);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.phone-card-body h4 {
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.phone-specs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.phone-specs li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-2);
}

/* ─── SECTORS ────────────────────────────── */
.sectors {
  padding: 120px 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%);
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sector-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  position: relative;
  overflow: hidden;
}
.sector-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.sector-card:hover {
  border-color: var(--border-acc);
  transform: translateY(-6px);
}
.sector-card:hover::after { opacity: 0.04; }

.sector-icon {
  color: var(--accent);
  margin-bottom: 18px;
}
.sector-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.sector-card p {
  color: var(--text-2);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ─── ABOUT ──────────────────────────────── */
.about {
  padding: 120px 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.2;
}
.about-content > p {
  color: var(--text-2);
  font-size: 0.97rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 32px;
}
.value {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.value-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.value strong {
  display: block;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.value > div > span {
  font-size: 0.85rem;
  color: var(--text-2);
}

.about-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
}

.about-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 22px;
}
.about-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  flex-shrink: 0;
  animation: blink 2.4s ease-in-out infinite;
}

.about-location {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--accent);
  margin-bottom: 26px;
}
.about-location > div strong {
  display: block;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 2px;
}
.about-location > div span {
  font-size: 0.85rem;
  color: var(--text-2);
}

.about-specs {
  display: flex;
  align-items: center;
  gap: 20px;
}
.spec {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.spec-num {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.spec-num small {
  font-size: 1rem;
}
.spec > span:last-child {
  font-size: 0.72rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.spec-sep {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* ─── PARTNERSHIP ────────────────────────── */
.partnership {
  padding: 120px 0;
  background: var(--bg-2);
}

.partner-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 44px;
}

.tier-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.25s, transform 0.25s;
}
.tier-card:hover { transform: translateY(-5px); }

.tier-card.tier-featured {
  border-color: rgba(29, 78, 216, 0.35);
  background: rgba(29, 78, 216, 0.07);
}
.tier-card.tier-featured:hover { border-color: rgba(29, 78, 216, 0.55); }

.tier-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.tier-silver  { background: rgba(148, 163, 184, 0.12); color: #94a3b8; }
.tier-gold    { background: rgba(234, 179, 8, 0.12);   color: #f59e0b; }
.tier-platinum{ background: rgba(34, 211, 238, 0.12);  color: var(--accent); }

.tier-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.tier-card > p {
  color: var(--text-2);
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 22px;
}
.tier-card ul {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.tier-card ul li {
  color: var(--text-2);
  font-size: 0.86rem;
  padding-left: 16px;
  position: relative;
}
.tier-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.78rem;
}

.partner-cta { text-align: center; }

/* Corsi di certificazione */
.partner-courses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 56px;
}

.course-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: border-color 0.25s, background 0.25s;
}
.course-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
}

.course-icon {
  width: 52px;
  height: 52px;
  background: rgba(29, 78, 216, 0.1);
  border: 1px solid rgba(29, 78, 216, 0.18);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.course-body { flex: 1; }

.course-badge {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.18);
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.course-badge--blue {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.2);
  color: var(--blue);
}

.course-body h4 {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}
.course-body p {
  color: var(--text-2);
  font-size: 0.83rem;
  line-height: 1.6;
}

/* Requisiti tier */
.tier-req {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(34, 211, 238, 0.05);
  border: 1px solid rgba(34, 211, 238, 0.12);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.tier-req-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.tier-req-num {
  font-size: 1.4rem;
  font-weight: 900;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.tier-req-item > span:last-child {
  font-size: 0.68rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tier-req-sep {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-3);
  padding: 0 2px;
}
.tier-req--or .tier-req-sep {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ─── OMNI UCC — UCC GRID ───────────────── */
.ucc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.ucc-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color 0.25s, background 0.25s, transform 0.2s;
}
.ucc-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
  transform: translateY(-2px);
}

.ucc-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 8px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.ucc-card-body h4,
.ucc-card > div:not(.ucc-icon) h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
  letter-spacing: 0.01em;
}

.ucc-card-body p,
.ucc-card > div:not(.ucc-icon) p {
  font-size: 0.75rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* ACN inline reference (inside product sections) */
.product-acn-ref {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.acn-badge--sm {
  font-size: 0.65rem;
  padding: 3px 10px;
  gap: 5px;
}

.acn-scheda--sm {
  font-size: 0.67rem;
  padding: 2px 8px;
}

/* ─── CERTIFICAZIONI ────────────────────── */
.certifications {
  padding: 120px 0;
  background: var(--bg-2);
}

.cert-group-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 20px;
  padding-left: 2px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

/* ISO cards — griglia 4 colonne */
.iso-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 56px;
}

.iso-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}
.iso-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
  transform: translateY(-4px);
}

.iso-number {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.iso-number::before {
  content: 'ISO ';
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  display: block;
  color: var(--text-3);
  -webkit-text-fill-color: var(--text-3);
  margin-bottom: 2px;
}

.iso-body h4 {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 8px;
}
.iso-body p {
  color: var(--text-2);
  font-size: 0.8rem;
  line-height: 1.65;
}

/* ACN cards — griglia 2 colonne */
.acn-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.acn-card {
  background: var(--glass);
  border: 1px solid rgba(34, 211, 238, 0.15);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  position: relative;
  overflow: hidden;
}
.acn-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
}
.acn-card:hover {
  border-color: rgba(34, 211, 238, 0.35);
  background: var(--glass-hover);
  transform: translateY(-4px);
}

.acn-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.acn-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-transform: uppercase;
}

.acn-scheda {
  font-size: 0.72rem;
  font-weight: 700;
  font-family: 'Inter', monospace;
  letter-spacing: 0.06em;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
}

.acn-card h3 {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.acn-subtitle {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.acn-card > p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.acn-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.acn-tag {
  padding: 3px 12px;
  background: rgba(29, 78, 216, 0.1);
  border: 1px solid rgba(29, 78, 216, 0.2);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue);
  text-transform: uppercase;
}

/* ─── REFERENZE ──────────────────────────── */
.references {
  padding: 120px 0;
  background: var(--bg);
}

.ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 44px;
}

.ref-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
}
.ref-card:hover {
  border-color: var(--border-acc);
  background: var(--glass-hover);
  transform: translateY(-5px);
}

.ref-card-placeholder {
  border-style: dashed;
  opacity: 0.55;
}
.ref-card-placeholder:hover {
  opacity: 0.8;
}

.ref-logo {
  height: 44px;
  display: flex;
  align-items: center;
  margin-bottom: 18px;
}
.ref-logo span {
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.ref-logo-ghost {
  color: var(--text-3);
}

.ref-card h4 {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 10px;
}
.ref-card p {
  color: var(--text-2);
  font-size: 0.85rem;
  line-height: 1.65;
}

.ref-sector {
  display: inline-block;
  margin-top: 16px;
  padding: 3px 12px;
  background: rgba(34, 211, 238, 0.07);
  border: 1px solid rgba(34, 211, 238, 0.15);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.ref-cta { text-align: center; }

/* ─── CONTACT ────────────────────────────── */
.contact {
  padding: 120px 0;
  background: var(--bg-2);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  line-height: 1.2;
}
.contact-info > p {
  color: var(--text-2);
  font-size: 0.97rem;
  line-height: 1.75;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-2);
  font-size: 0.92rem;
}
.contact-item svg { color: var(--accent); flex-shrink: 0; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
}
.form-group input,
.form-group textarea {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  transition: border-color 0.2s;
  resize: none;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(34, 211, 238, 0.45);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-3);
}

/* Honeypot — completamente nascosto a utenti e screen reader */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  tab-index: -1;
}

/* Feedback form */
.form-feedback {
  font-size: 0.85rem;
  line-height: 1.5;
  min-height: 1.2em;
  transition: opacity 0.3s;
}
.form-feedback:empty { display: none; }
.form-feedback--success { color: #4ade80; }
.form-feedback--error   { color: #f87171; }

/* ─── FOOTER ─────────────────────────────── */
.footer {
  padding: 72px 0 36px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  gap: 80px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.footer-brand {
  flex: 1;
  min-width: 190px;
}
.footer-brand p {
  color: var(--text-2);
  font-size: 0.88rem;
  margin: 14px 0 6px;
}
.footer-piva {
  font-size: 0.76rem;
  color: var(--text-3);
}

.footer-links {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 120px;
}
.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text);
  margin-bottom: 4px;
}
.footer-col a {
  color: var(--text-2);
  font-size: 0.86rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: 0.82rem;
}
.footer-lang { font-size: 0.75rem !important; }

/* ─── RESPONSIVE ─────────────────────────── */
@media (max-width: 1024px) {
  .hero-split        { gap: 48px; }
  .features-grid     { grid-template-columns: repeat(2, 1fr); }
  .sectors-grid      { grid-template-columns: repeat(2, 1fr); }
  .iso-grid          { grid-template-columns: repeat(2, 1fr); }
  .partner-courses   { grid-template-columns: 1fr; }
  .partner-tiers     { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .ref-grid          { grid-template-columns: repeat(2, 1fr); }
  .phones-grid       { grid-template-columns: repeat(2, 1fr); }
  .ucc-grid          { grid-template-columns: 1fr; }
  .product-inner     { gap: 48px; }
  .about-inner       { gap: 48px; }
  .contact-inner     { gap: 48px; }
}

@media (max-width: 768px) {
  .nav-links       { display: none; }
  .nav-toggle      { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: rgba(11, 16, 35, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
    z-index: 99;
  }
  .nav-links.open a        { font-size: 1rem; }
  .nav-links.open a.btn-nav{ display: inline-block; width: fit-content; }

  .hero            { padding: 110px 0 80px; }
  .hero-split      { grid-template-columns: 1fr; gap: 0; }
  .hero-visual     { display: none; }
  .hero-title      { font-size: 2.6rem; }
  .hero-stats      { gap: 20px; }

  .features-grid   { grid-template-columns: 1fr; }
  .product-inner   { grid-template-columns: 1fr; gap: 40px; }
  .product-reverse .product-visual { order: unset; }
  .sectors-grid    { grid-template-columns: 1fr; }
  .about-inner     { grid-template-columns: 1fr; gap: 40px; }
  .iso-grid          { grid-template-columns: 1fr; }
  .acn-grid          { grid-template-columns: 1fr; }
  .ucc-grid          { grid-template-columns: 1fr; }
  .phones-grid       { grid-template-columns: 1fr; }
  .partner-courses   { grid-template-columns: 1fr; }
  .course-card       { flex-direction: column; gap: 14px; }
  .ref-grid          { grid-template-columns: 1fr; }
  .contact-inner   { grid-template-columns: 1fr; gap: 40px; }
  .form-row        { grid-template-columns: 1fr; }
  .footer-inner    { flex-direction: column; gap: 36px; }
  .footer-links    { gap: 28px; }
  .footer-bottom   { flex-direction: column; gap: 14px; text-align: center; }
}

@media (max-width: 480px) {
  .container       { padding: 0 16px; }
  .hero-title      { font-size: 2.1rem; }
  .hero-ctas       { flex-direction: column; }
  .hero-stats      { gap: 14px; }
  .stat-num        { font-size: 1.5rem; }
  .cc-grid         { grid-template-columns: 1fr; }
  .about-specs     { gap: 12px; }
}