/* Neaitech Lab — Area Viaggi / VoltTrip */
:root {
  --bg: #f0f9ff;
  --bg-alt: #e0f2fe;
  --ink: #0c4a6e;
  --muted: #475569;
  --accent: #0284c7;
  --accent-2: #0d9488;
  --coral: #f97316;
  --card: #ffffff;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "DM Sans", system-ui, sans-serif;
  --radius: 1.25rem;
  --shadow: 0 12px 40px rgba(12, 74, 110, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background:
    linear-gradient(180deg, #bae6fd 0%, #e0f2fe 28%, #f0f9ff 55%, #fef3c7 100%);
  min-height: 100%;
  line-height: 1.55;
}

.container {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(14, 165, 233, 0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
}
.logo b { color: var(--accent); font-weight: 600; }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
}
.nav a:hover { color: var(--accent); }
.menu-btn {
  display: none;
  border: 1px solid #bae6fd;
  background: #fff;
  border-radius: 0.5rem;
  padding: 0.35rem 0.6rem;
  font-size: 1.1rem;
  cursor: pointer;
}

/* Hero */
.hero {
  position: relative;
  padding: 4rem 0 3.5rem;
  overflow: hidden;
}
.hero::before {
  content: "🌴";
  position: absolute;
  right: 6%;
  top: 18%;
  font-size: 4rem;
  opacity: 0.35;
  pointer-events: none;
}
.hero::after {
  content: "🏝️";
  position: absolute;
  left: 4%;
  bottom: 10%;
  font-size: 3rem;
  opacity: 0.3;
  pointer-events: none;
}
.hero-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 16ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent-2);
}
.hero-desc {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.25rem;
}
.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}
.hero-chips span {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid #bae6fd;
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(135deg, #f97316, #fbbf24);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
  transition: transform 0.2s, filter 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid #7dd3fc;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
}
.btn-ghost:hover { background: #fff; }
.btn-lg { padding: 1rem 1.6rem; font-size: 1rem; }
.hero-note {
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 540px;
}

/* Sections */
.section {
  padding: 3.5rem 0;
}
.section-alt {
  background: rgba(255, 255, 255, 0.45);
  border-block: 1px solid rgba(125, 211, 252, 0.35);
}
.section-head {
  margin-bottom: 2rem;
  max-width: 640px;
}
.kicker {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  margin: 0 0 0.75rem;
}
.section-head p {
  margin: 0;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.card {
  background: var(--card);
  border: 1px solid #bae6fd;
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
}
.card-icon { font-size: 1.75rem; display: block; margin-bottom: 0.5rem; }
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}
.card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem;
  display: grid;
  gap: 0.85rem;
}
.steps li {
  background: #fff;
  border: 1px solid #bae6fd;
  border-radius: 1rem;
  padding: 1rem 1.15rem;
  box-shadow: var(--shadow);
}
.cta-block { margin-top: 0.5rem; }

.feature-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.feature {
  background: linear-gradient(160deg, #fff 0%, #f0f9ff 100%);
  border: 1px solid #7dd3fc;
  border-radius: var(--radius);
  padding: 1.25rem;
}
.feature h3 { margin: 0 0 0.4rem; font-size: 1rem; }
.feature p { margin: 0; font-size: 0.9rem; color: var(--muted); }

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.tech-list li {
  background: #fff;
  border: 1px solid #bae6fd;
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.disclaimer {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  padding: 1.25rem;
  font-size: 0.9rem;
  color: #9a3412;
}

footer.site-foot {
  padding: 2rem 0 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
footer.site-foot a { color: var(--accent); }

.reveal { opacity: 1; }

@media (max-width: 720px) {
  .menu-btn { display: block; }
  .nav {
    display: none;
    position: absolute;
    left: 4vw;
    right: 4vw;
    top: 100%;
    background: #fff;
    border: 1px solid #bae6fd;
    border-radius: 1rem;
    padding: 1rem;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
}