:root {
  --bg: #06070f;
  --bg-alt: #0a0c1c;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --text: #eceef8;
  --text-dim: #9aa0c0;
  --text-dimmer: #767da3;
  --accent-1: #8b6bff;
  --accent-2: #34d8ff;
  --accent-3: #ff7ce0;
  --grad: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --grad-soft: linear-gradient(135deg, rgba(139,107,255,0.18), rgba(52,216,255,0.10));
  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow-glow: 0 0 60px rgba(139, 107, 255, 0.18);
  --container: 1160px;
  --font-head: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

/* Starfield background */
.starfield {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1.5px 1.5px at 20px 30px, rgba(255,255,255,0.55), transparent),
    radial-gradient(1px 1px at 90px 120px, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 160px 60px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 230px 180px, rgba(255,255,255,0.35), transparent),
    radial-gradient(1.5px 1.5px at 300px 40px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 40px 220px, rgba(255,255,255,0.3), transparent),
    radial-gradient(1.5px 1.5px at 380px 260px, rgba(255,255,255,0.45), transparent),
    radial-gradient(1px 1px at 130px 300px, rgba(255,255,255,0.3), transparent);
  background-repeat: repeat;
  background-size: 420px 420px;
  opacity: 0.7;
}

.starfield::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 10%, rgba(139,107,255,0.20), transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(52,216,255,0.14), transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(255,124,224,0.10), transparent 45%);
}

/* Orbit hero decoration */
.orbit-decor {
  position: absolute;
  top: 40px;
  right: -80px;
  width: 480px;
  height: 480px;
  z-index: -1;
  pointer-events: none;
}
.orbit-svg { width: 100%; height: 100%; }
.orbit-ring-group {
  transform-origin: 200px 200px;
  animation: spin-slow 60s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(6, 7, 15, 0.55);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(6, 7, 15, 0.85);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 16px rgba(139,107,255,0.6);
}
.accent { color: var(--accent-2); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 0.94rem;
  color: var(--text-dim);
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  color: var(--bg) !important;
  background: var(--grad);
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { filter: brightness(1.08); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform .2s ease, filter .2s ease, background .2s ease;
}
.btn-primary {
  background: var(--grad);
  color: #06070f;
  box-shadow: 0 8px 30px rgba(139,107,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); }
.btn-ghost {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: var(--surface-strong); }
.btn-lg { padding: 17px 34px; font-size: 1.05rem; }

/* Hero */
.hero {
  padding: 168px 0 100px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}
h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 22px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 540px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.stat strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.7rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}
.stat span {
  font-size: 0.85rem;
  color: var(--text-dimmer);
  line-height: 1.4;
}

/* Hero visual mock window */
.mock-window {
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow), 0 30px 60px rgba(0,0,0,0.35);
  overflow: hidden;
}
.mock-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.mock-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
}
.mock-title {
  margin-left: 8px;
  font-size: 0.78rem;
  color: var(--text-dimmer);
  font-family: var(--font-head);
}
.mock-body { padding: 26px 22px 30px; }
.mock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 0.93rem;
  color: var(--text-dim);
  border-bottom: 1px dashed var(--border);
  opacity: 0;
  transform: translateX(-8px);
  animation: rowIn .5s ease forwards;
  animation-delay: var(--d);
}
.mock-row:last-of-type { border-bottom: none; }
.mock-check {
  width: 22px; height: 22px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--grad);
  color: #06070f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}
@keyframes rowIn {
  to { opacity: 1; transform: translateX(0); }
}
.mock-progress {
  margin-top: 18px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}
.mock-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--grad);
  animation: fillBar 1.8s ease 1.4s forwards;
}
@keyframes fillBar { to { width: 100%; } }

/* Product showcase */
.showcase-window { margin-top: 44px; }
.showcase-body { padding: 30px; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139,107,255,0.4);
  background: var(--surface-strong);
}
.product-icon {
  width: 100%;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 14px;
}
.product-icon svg { width: 48px; height: 48px; }
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-2);
  background: rgba(52,216,255,0.08);
  border: 1px solid rgba(52,216,255,0.25);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.product-card h4 {
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.product-price { font-size: 0.88rem; color: var(--text-dim); }
.product-price .margin { color: #4ade80; font-size: 0.78rem; margin-left: 6px; }

/* Rocket decoration */
.rocket-decor { width: 84px; margin: 0 0 18px; }
.rocket-svg { width: 100%; height: 100%; }

/* Chi siamo */
.chi-siamo-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 40px;
  align-items: center;
}
.avatar-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--bg);
  box-shadow: var(--shadow-glow);
}

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; margin-top: 40px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 22px;
}
.faq-item summary {
  padding: 18px 0;
  font-family: var(--font-head);
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 18px;
  color: var(--accent-2);
  font-size: 1.2rem;
  transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--text-dim); padding-bottom: 18px; font-size: 0.94rem; }

/* Form checkbox */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.form-check input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--accent-1);
  flex-shrink: 0;
}
.form-check label a { color: var(--accent-2); }

/* Accessibility: visible focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.01em;
  max-width: 720px;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--text-dim);
  max-width: 620px;
  margin-bottom: 48px;
  font-size: 1.05rem;
}
.section > .container > .section-title:last-child { margin-bottom: 0; }

/* Grids & cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 48px;
  margin-top: 44px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(139,107,255,0.4);
  background: var(--surface-strong);
}
.card-icon { font-size: 1.7rem; margin-bottom: 16px; }
.card h3 {
  font-family: var(--font-head);
  font-size: 1.08rem;
  margin-bottom: 10px;
}
.card p { color: var(--text-dim); font-size: 0.94rem; }

.feature-row {
  padding: 22px 0;
  border-top: 1px solid var(--border);
}
.feature-row h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--accent-2);
}
.feature-row p { color: var(--text-dim); font-size: 0.96rem; max-width: 460px; }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.step {
  background: var(--grad-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  position: relative;
}
.step-num {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-2);
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}
.step h3 { font-family: var(--font-head); font-size: 1.05rem; margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 0.92rem; }

/* Timeline */
.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 48px;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0; right: 0;
  height: 1px;
  background: var(--border);
}
.timeline-item { position: relative; padding-top: 30px; }
.timeline-dot {
  position: absolute;
  top: 0; left: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 12px rgba(139,107,255,0.7);
}
.timeline-item h3 { font-family: var(--font-head); font-size: 1rem; margin-bottom: 8px; }
.timeline-item p { color: var(--text-dim); font-size: 0.88rem; }

/* CTA final */
.cta-final {
  padding: 110px 0;
  background: radial-gradient(ellipse at center, rgba(139,107,255,0.14), transparent 65%), var(--bg-alt);
  border-top: 1px solid var(--border);
  text-align: center;
}
.cta-final h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin-bottom: 14px;
}
.cta-final p { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 32px; }
.cta-note { margin-top: 20px; font-size: 0.9rem; }
.cta-note a { color: var(--accent-2); }

/* Contact form */
.contact-form {
  max-width: 560px;
  margin: 40px auto 0;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px;
}
.hp-field { position: absolute; left: -9999px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 7px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color .2s ease, background .2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  background: rgba(255,255,255,0.05);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.contact-form .btn { width: 100%; justify-content: center; margin-top: 4px; }
.form-status { margin-top: 14px; font-size: 0.9rem; min-height: 1.2em; }
.form-status.success { color: #4ade80; }
.form-status.error { color: #f87171; }

@media (max-width: 620px) {
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
}

/* Footer */
.footer { padding: 60px 0 40px; border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px; }
.footer-tagline { color: var(--text-dimmer); font-size: 0.92rem; max-width: 420px; }
.footer-links { display: flex; gap: 26px; font-size: 0.9rem; color: var(--text-dim); margin: 10px 0; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--text-dimmer); font-size: 0.8rem; margin-top: 10px; }

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
  transition-delay: var(--delay, 0ms);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 140px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .orbit-decor { width: 340px; height: 340px; right: -120px; }
  .chi-siamo-grid { grid-template-columns: 100px 1fr; gap: 24px; }
  .avatar-circle { width: 90px; height: 90px; font-size: 1.5rem; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .timeline::before { display: none; }
  .nav-links {
    position: fixed;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(6,7,15,0.97);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px 20px;
    transform: translateY(-130%);
    transition: transform .3s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--border); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-cta { margin-top: 8px; text-align: center; }
  .nav-toggle { display: flex; }
}
@media (max-width: 620px) {
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }
  .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .showcase-body { padding: 20px; }
  .orbit-decor { display: none; }
  .chi-siamo-grid { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .timeline { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}