/* Foglio esterno: la CSP ammette style-src 'self', non un terzo inline
   senza hash. Vedi commento in privacy/stile.css. */

:root {
  --bg: #050705;
  --panel: #0a100c;
  --line: #1a2e22;
  --phosphor: #3dff9a;
  --phosphor-dim: #1a8f55;
  --amber: #f0b429;
  --fog: #8fa898;
  --white: #e8f5ec;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --sans: "Instrument Sans", system-ui, -apple-system, Segoe UI, sans-serif;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/instrument-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/instrument-sans-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/instrument-sans-latin-700-normal.woff2") format("woff2");
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--sans);
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--phosphor); }
a:hover { filter: brightness(1.12); }

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: linear-gradient(to bottom, rgba(5, 7, 5, 0.97), rgba(5, 7, 5, 0.85));
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fog);
}
.nav a { color: inherit; text-decoration: none; }
.nav .brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--phosphor);
  font-weight: 600;
}
.nav .brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
  background: #0a100c;
}
.nav .links { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.nav .cta {
  color: var(--bg);
  background: var(--phosphor);
  padding: 0.45rem 0.9rem;
  font-weight: 600;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

main { max-width: 48rem; margin: 0 auto; padding: 2rem clamp(1rem, 4vw, 2rem) 5rem; }

.hero {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}
.hero .kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--phosphor);
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(1.85rem, 5vw, 2.75rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.1rem;
}
.hero .lead {
  font-size: 1.1rem;
  color: var(--fog);
  max-width: 38rem;
  margin-bottom: 1.6rem;
}
.hero .lead strong { color: var(--white); font-weight: 600; }

.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 0.5rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.btn-primary { background: var(--phosphor); color: var(--bg); }
.btn-ghost {
  border: 1px solid var(--phosphor-dim);
  color: var(--phosphor);
  background: transparent;
}
.btn-soon { opacity: 0.55; cursor: default; }
.soon {
  margin-left: 0.4rem;
  font-size: 10px;
  color: var(--amber);
}

.sec-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--phosphor-dim);
  margin: 2.75rem 0 0.6rem;
}
h2 {
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  font-weight: 650;
  line-height: 1.25;
  margin-bottom: 0.9rem;
}
p { margin-bottom: 0.95rem; color: var(--white); }
.muted { color: var(--fog); }

.grid {
  display: grid;
  gap: 0.85rem;
  margin: 1.4rem 0 1.8rem;
}
@media (min-width: 640px) {
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .grid.two { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.1rem 1.15rem;
  border-radius: 2px;
}
.card h3 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--phosphor);
  margin-bottom: 0.45rem;
}
.card p { margin: 0; font-size: 0.95rem; color: var(--fog); }

.siti {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0 1.5rem;
}
.siti span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  border: 1px solid var(--line);
  color: var(--fog);
  padding: 0.35rem 0.6rem;
}

.faq { margin: 1.2rem 0 2rem; }
.faq details {
  border: 1px solid var(--line);
  background: var(--panel);
  margin-bottom: 0.55rem;
  padding: 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 0.95rem 1.1rem;
  font-weight: 600;
  color: var(--white);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  font-family: var(--mono);
  color: var(--phosphor);
  margin-right: 0.65rem;
}
.faq details[open] summary::before { content: "−"; }
.faq .risposta {
  padding: 0 1.1rem 1.1rem 2.2rem;
  color: var(--fog);
  font-size: 0.98rem;
}
.faq .risposta p { color: var(--fog); }
.faq .risposta strong { color: var(--white); }
.faq .risposta ul { margin: 0.5rem 0 0.75rem 1.1rem; }
.faq .risposta li { margin-bottom: 0.35rem; }

.limiti {
  border-left: 3px solid var(--amber);
  background: rgba(240, 180, 41, 0.06);
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
}
.limiti h3 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}
.limiti ul { margin-left: 1.1rem; color: var(--fog); }
.limiti li { margin-bottom: 0.35rem; }

.footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fog);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  justify-content: space-between;
}
.footer a { color: var(--fog); text-decoration: none; }
.footer a:hover { color: var(--phosphor); }