:root {
  --bg: #060a12;
  --bg-2: #0b1220;
  --bg-3: #101a2b;
  --line: #142034;
  --line-2: #22324d;
  --text: #eef4ff;
  --muted: #9aa9c2;
  --dim: #5b6a85;
  --accent: #3cc8ff;
  --accent-2: #7fdcff;
  --glow: rgba(60, 200, 255, 0.35);
  --haze: rgba(28, 70, 160, 0.22);

  --sans: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --gutter: clamp(1.25rem, 0.5rem + 2.4vw, 2.5rem);
  --space: clamp(3.5rem, 2rem + 5vw, 7rem);
  --max: 1200px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--accent); color: var(--bg); }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}
h1, h2 {
  margin: 0;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
  font-size: clamp(1.9rem, 1.4rem + 1.8vw, 2.75rem);
}
h3 { margin: 0; font-weight: 400; font-size: 1.25rem; letter-spacing: -0.005em; }
p { margin: 0; text-wrap: pretty; }

.mono, .eyebrow, .label, .btn, .nav, .tag, .caption, dt, .steps__num {
  font-family: var(--mono);
  letter-spacing: 0.04rem;
  text-transform: uppercase;
}
.muted { color: var(--muted); }
.small { font-size: 0.8125rem; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  padding: 0.8rem 1.2rem; background: var(--accent); color: var(--bg);
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- layout shell: centered column framed by hairlines ---------- */
.shell {
  max-width: var(--max);
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.rule { border-top: 1px solid var(--line); }
.section { padding: var(--space) var(--gutter); }
.section__head { max-width: 48rem; margin-bottom: calc(var(--space) * 0.6); }
.section__head h1, .section__head h2 { margin-top: 1.4rem; }
.section__head p { margin-top: 1.4rem; max-width: 38rem; font-size: 1.25rem; line-height: 1.5; color: var(--muted); }
@media (max-width: 1200px) { .shell { border-left: 0; border-right: 0; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-size: 0.75rem; color: var(--muted);
}
.eyebrow::before { content: ""; width: 6px; height: 6px; flex: none; background: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.8rem;
  padding: 1.2rem 1.6rem;
  font-size: 0.75rem; line-height: 1.2;
  border: 0; border-radius: 2px; cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease;
}
.btn--primary { background: var(--accent); color: var(--bg); }
.btn--primary:hover { background: var(--accent-2); color: var(--bg); }
.btn--ghost { color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); background: transparent; }
.btn--ghost:hover { color: var(--text); background: var(--bg-3); }
.btn--block { width: 100%; }
.arrow { display: inline-block; transition: transform 160ms ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- nav ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); min-height: 64px; margin: 0 auto;
  padding: 0 var(--gutter);
  font-size: 0.75rem;
  border-left: 1px solid var(--line); border-right: 1px solid var(--line);
}
@media (max-width: 1200px) { .nav { border: 0; } }
.logo {
  display: inline-flex; align-items: center; gap: 0.7rem;
  color: var(--text); font-family: var(--sans); text-transform: none;
  font-size: 1.05rem; letter-spacing: -0.01em; font-weight: 400;
}
.logo { gap: 0.6rem; font-size: 1.25rem; font-weight: 500; letter-spacing: -0.02em; }
.logo:hover { color: var(--text); }
.logo img { display: block; width: 36px; height: 36px; }
.nav__menu { display: flex; align-items: center; gap: 2.4rem; list-style: none; margin: 0; padding: 0; }
.nav__menu a { color: var(--muted); transition: color 160ms ease; }
.nav__menu a:hover { color: var(--text); }
.nav__cta a {
  display: inline-block; padding: 0.8rem 1.2rem;
  background: var(--accent); color: var(--bg); border-radius: 2px;
}
.nav__cta a:hover { background: var(--accent-2); color: var(--bg); }
.nav__toggle {
  display: none;
  min-width: 48px; padding: 0.4rem 0.9rem;
  font-size: 1.25rem; line-height: 1;
  color: var(--text); background: transparent;
  border: 1px solid var(--line-2); border-radius: 2px; cursor: pointer;
}
.nav__toggle:hover { color: var(--accent); }
.nav__icon-close { display: none; }
.nav[data-state="open"] .nav__icon-open { display: none; }
.nav[data-state="open"] .nav__icon-close { display: inline; }

@media (max-width: 1100px) { .nav__menu { gap: 1.4rem; } }
@media (max-width: 960px) {
  .nav__toggle { display: inline-flex; }
  .nav__menu {
    display: none;
    position: absolute; top: calc(100% + 1px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 1rem var(--gutter) 1.6rem;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .nav[data-state="open"] .nav__menu { display: flex; }
  .nav__menu li { border-bottom: 1px solid var(--line); }
  .nav__menu li:last-child { border-bottom: 0; padding-top: 1rem; }
  .nav__menu a { display: block; padding: 1.1rem 0; }
  .nav__cta a { text-align: center; padding: 1.1rem; }
}

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.hero__copy {
  display: flex; flex-direction: column; justify-content: center; gap: 1.6rem;
  padding: var(--space) var(--gutter);
}
.hero h1 { font-size: clamp(2.5rem, 1.6rem + 3.2vw, 4.25rem); line-height: 1.04; letter-spacing: -0.03em; }
.hero__copy > p { max-width: 32rem; font-size: 1.25rem; line-height: 1.5; color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.8rem; padding-top: 1rem; }
.hero__visual { position: relative; min-height: 40rem; border-left: 1px solid var(--line); overflow: hidden; }
.caption {
  position: absolute; left: 1.4rem; bottom: 1.4rem;
  font-size: 0.75rem; color: var(--muted); opacity: 0.7;
}
@media (max-width: 800px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .hero__visual { min-height: 0; aspect-ratio: 4 / 3; border-left: 0; border-top: 1px solid var(--line); }
}

/* ---------- services ---------- */
.label { font-size: 0.75rem; color: var(--accent); }
.services {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2);
}
@media (max-width: 960px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .services { grid-template-columns: minmax(0, 1fr); } }
.service {
  position: relative;
  display: flex; flex-direction: column; gap: 1rem;
  padding: 1.6rem; min-width: 0;
  border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2);
  transition: background-color 200ms ease;
}
.service::before {
  content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 400ms cubic-bezier(0.22, 1, 0.36, 1);
}
.service:hover { background: var(--bg-2); }
.service:hover::before { transform: scaleX(1); }
.service__num { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04rem; color: var(--accent); }
.service p { flex: 1; font-size: 0.9375rem; color: var(--muted); }
.service__tags { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }

/* ---------- projects ---------- */
.projects {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2);
}
@media (max-width: 700px) { .projects { grid-template-columns: minmax(0, 1fr); } }
.project { display: flex; flex-direction: column; min-width: 0; border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.project__media { display: block; overflow: hidden; border-bottom: 1px solid var(--line); }
.project__media img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1); }
.project:hover .project__media img { transform: scale(1.04); }
.project__body { display: flex; flex-direction: column; gap: 1rem; padding: 1.6rem; }
.project__meta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.project__status {
  font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem;
  padding: 0.3rem 0.6rem; border: 1px solid var(--line-2); border-radius: 2px; color: var(--muted);
}
.project p { font-size: 0.9375rem; color: var(--muted); }
.project__stack { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }

/* ---------- examples ---------- */
.grid3, .steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2);
}
.grid3 > *, .steps > * { border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); min-width: 0; }
.example { display: flex; flex-direction: column; gap: 1.2rem; padding: 1.6rem; transition: background-color 200ms ease; }
.example:hover { background: var(--bg-2); }
.tag { font-size: 0.75rem; color: var(--accent); }
.example__note { margin-top: -0.6rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.example dl { margin: 0; font-size: 0.9375rem; }
.example dt { padding-top: 1rem; border-top: 1px solid var(--line); font-size: 0.75rem; color: var(--text); }
.example dd { margin: 0.8rem 0 1.2rem; color: var(--muted); }
.example dd:last-child { margin-bottom: 0; }

/* ---------- steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); }
.steps li { display: flex; flex-direction: column; }
.steps__visual { position: relative; aspect-ratio: 1.6; border-bottom: 1px solid var(--line); overflow: hidden; }
.steps__body { display: flex; flex-direction: column; gap: 1.2rem; padding: 1.6rem; }
.steps__num { font-size: 0.75rem; color: var(--accent); }
.steps p { font-size: 0.9375rem; color: var(--muted); }

/* ---------- canvas scenes ---------- */
canvas[data-scene] { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.band { position: relative; height: clamp(16rem, 8rem + 22vw, 30rem); overflow: hidden; }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--gutter); align-items: start; }
@media (max-width: 800px) { .about { grid-template-columns: minmax(0, 1fr); } }
.portrait { margin: 0; max-width: 20rem; }
.portrait img {
  display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  border: 1px solid var(--line-2);
}
.portrait figcaption { display: flex; flex-direction: column; gap: 0.6rem; padding-top: 1.2rem; font-size: 0.75rem; }
.portrait__name { font-size: 1.25rem; color: var(--text); }
.about__text { display: flex; flex-direction: column; gap: var(--gutter); }
blockquote {
  margin: 0; padding-left: var(--gutter);
  border-left: 1px solid var(--accent);
  font-size: clamp(1.375rem, 1.1rem + 0.9vw, 1.875rem);
  font-weight: 300; line-height: 1.35; letter-spacing: -0.015em;
  text-wrap: pretty;
}
.stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0;
  border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2);
}
.stats > div { display: flex; flex-direction: column-reverse; gap: 0.4rem; padding: 1.2rem; border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.stats dt { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--muted); }
.stats dd { margin: 0; font-size: clamp(2.25rem, 1.8rem + 1.6vw, 3.25rem); font-weight: 300; line-height: 1; letter-spacing: -0.03em; color: var(--text); }
@media (max-width: 480px) { .stats > div { padding: 1rem 0.8rem; } }
.trust { list-style: none; margin: 0; padding: 0; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; line-height: 1.6; color: var(--muted); }
.trust li { display: flex; gap: 0.8rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.trust li::before { content: ""; width: 6px; height: 6px; margin-top: 0.45rem; flex: none; background: var(--accent); }

/* ---------- contact ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--gutter); align-items: start; }
.contact .section__head { margin-bottom: 0; }
@media (max-width: 800px) { .contact { grid-template-columns: minmax(0, 1fr); gap: 2.4rem; } }
.form { display: flex; flex-direction: column; gap: 1.2rem; padding: 1.6rem; border: 1px solid var(--line-2); background: var(--bg-2); border-radius: 2px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
@media (max-width: 560px) { .form__row { grid-template-columns: 1fr; } }
.form label { display: flex; flex-direction: column; gap: 0.5rem; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; }
.form label .muted { text-transform: none; }
.form input, .form textarea, .form select {
  width: 100%; padding: 0.9rem 1rem;
  font: 400 1rem/1.5 var(--sans); color: var(--text);
  background: var(--bg); border: 1px solid var(--line-2); border-radius: 2px;
  transition: border-color 160ms ease;
}
.form select {
  appearance: none; cursor: pointer; padding-right: 2.6rem;
  background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%233cc8ff' stroke-width='1.4'/%3E%3C/svg%3E") no-repeat right 1rem center;
}
.form textarea { resize: vertical; min-height: 8rem; }
.form input:hover, .form textarea:hover, .form select:hover { border-color: var(--dim); }
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--accent); outline: none; }
.form [aria-invalid="true"] { border-color: #b05555; }
.form__warn { font-size: 0.8125rem; color: var(--muted); padding: 0.8rem 1rem; border-left: 2px solid #b05555; background: var(--bg); }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem; }
.form__status { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; min-height: 1em; }
.form__status[data-kind="ok"] { color: #52ad7e; }
.form__status[data-kind="err"] { color: #c06666; }

/* ---------- faq ---------- */
.faq { max-width: 52rem; border-top: 1px solid var(--line-2); }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.4rem 0; cursor: pointer; list-style: none;
  font-size: 1.125rem; transition: color 160ms ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; font-family: var(--mono); font-size: 1.1rem; color: var(--accent);
  transition: transform 200ms ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { color: var(--accent); }
.faq details p { padding: 0 0 1.6rem; max-width: 44rem; color: var(--muted); }

/* ---------- final cta ---------- */
.cta {
  display: flex; flex-direction: column; align-items: flex-start; gap: 1.4rem;
  padding: var(--space) var(--gutter);
  background:
    radial-gradient(50% 120% at 15% 100%, var(--haze), transparent 70%),
    linear-gradient(var(--bg), transparent 40%),
    repeating-linear-gradient(90deg, transparent 0 79px, var(--line) 79px 80px);
}
.cta p { color: var(--muted); font-size: 1.25rem; max-width: 32rem; }

/* ---------- footer ---------- */
.footer__inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem;
  padding: 3.5rem var(--gutter);
}
.footer__inner > div:first-child { display: flex; flex-direction: column; gap: 0.8rem; }
.footer ul { list-style: none; margin: 1rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; font-size: 0.9375rem; }
.footer nav a { color: var(--muted); }
.footer nav a:hover { color: var(--text); }
.social { flex-direction: row !important; gap: 0.6rem !important; }
.social a {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border: 1px solid var(--line-2); border-radius: 2px;
  transition: border-color 160ms ease;
}
.social img { display: block; opacity: 0.85; transition: opacity 160ms ease; }
.social a:hover { border-color: var(--accent); }
.social a:hover img { opacity: 1; }
.credit { margin-top: 1.2rem; }
.footer__base { padding: 1.4rem var(--gutter); border-top: 1px solid var(--line); }
@media (max-width: 800px) { .footer__inner { grid-template-columns: 1fr 1fr; } .footer__inner > div:first-child { grid-column: 1 / -1; } }

/* ---------- reveal on scroll ---------- */
/* gli elementi partono spostati di lato: clip evita lo scroll orizzontale senza rompere il menu sticky */
html, body { overflow-x: clip; }
.reveal {
  opacity: 0;
  transition: opacity 800ms ease, transform 900ms cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal[data-from="left"] { transform: translateX(-40px); }
.reveal[data-from="right"] { transform: translateX(40px); }
.reveal.is-in { opacity: 1; transform: none; }

/* =========================================================
   Pagine progetto e indice progetti
   ========================================================= */
html:has(.subnav) { scroll-padding-top: 120px; }
.nav__menu a[aria-current="page"] { color: var(--text); }

.crumbs { display: flex; flex-wrap: wrap; gap: 0.6rem; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }

.hero--project .hero__visual { min-height: 30rem; }
.hero__visual > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 800px) { .hero--project .hero__visual { min-height: 0; } }

.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 0.6rem 0 0; border-top: 1px solid var(--line); }
.facts div { padding: 0.8rem 0; border-bottom: 1px solid var(--line); }
.facts div:nth-child(odd) { padding-right: 1rem; }
.facts dt { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.facts dd { margin: 0.2rem 0 0; font-size: 0.9375rem; }

.notice { padding: 0.9rem 1rem; font-size: 0.9375rem; color: var(--muted); background: var(--bg-2); border-left: 2px solid var(--accent); }
.notice strong { color: var(--text); font-weight: 500; }

/* sotto-menu fisso sotto la barra principale */
.subnav { position: sticky; top: 64px; z-index: 15; background: var(--bg); border-bottom: 1px solid var(--line); }
.subnav ul {
  display: flex; gap: 2rem; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter);
  list-style: none; overflow-x: auto; scrollbar-width: none;
  border-left: 1px solid var(--line); border-right: 1px solid var(--line);
}
.subnav ul::-webkit-scrollbar { display: none; }
@media (max-width: 1200px) { .subnav ul { border: 0; } }
.subnav a {
  display: block; padding: 1rem 0; white-space: nowrap;
  font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem;
  color: var(--muted); border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}
.subnav a:hover { color: var(--text); }
.subnav a[aria-current] { color: var(--accent); border-bottom-color: var(--accent); }

/* indice delle risorse */
.resources {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2);
}
@media (max-width: 960px) { .resources { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .resources { grid-template-columns: minmax(0, 1fr); } }
.resource {
  display: flex; flex-direction: column; gap: 0.8rem; min-width: 0;
  padding: 1.4rem; color: var(--text);
  border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2);
  transition: background-color 200ms ease;
}
.resource:hover { background: var(--bg-2); color: var(--text); }
.resource svg, .community-card svg { width: 24px; height: 24px; color: var(--accent); }
.resource h3 { font-size: 1.0625rem; }
.resource p { flex: 1; font-size: 0.875rem; color: var(--muted); }
.resource .arrow, .doc .arrow { font-family: var(--mono); font-size: 0.75rem; color: var(--dim); transition: transform 160ms ease, color 160ms ease; }
.resource:hover .arrow, .doc:hover .arrow { color: var(--accent); transform: translateX(3px); }

.services--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 560px) { .services--2 { grid-template-columns: minmax(0, 1fr); } }
.overview { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--gutter); align-items: start; }
.overview__text { display: flex; flex-direction: column; gap: 1.2rem; color: var(--muted); font-size: 1.0625rem; }
@media (max-width: 900px) { .overview { grid-template-columns: minmax(0, 1fr); } }
.link-arrow { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; }
.sub-head { margin: calc(var(--space) * 0.6) 0 1.6rem; font-size: 1.5rem; font-weight: 300; }

/* prezzi */
.billing, .filters { display: inline-flex; flex-wrap: wrap; margin-bottom: 1.6rem; border: 1px solid var(--line-2); border-radius: 2px; }
.billing button, .filters button {
  padding: 0.7rem 1.1rem; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem;
  color: var(--muted); background: transparent; border: 0; cursor: pointer;
}
.billing button:hover, .filters button:hover { color: var(--text); }
.billing button[aria-pressed="true"], .filters button[aria-pressed="true"] { color: var(--bg); background: var(--accent); }
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; align-items: stretch; }
@media (max-width: 900px) { .plans { grid-template-columns: minmax(0, 1fr); } }
.plan { position: relative; display: flex; flex-direction: column; gap: 1.2rem; padding: 1.6rem; border: 1px solid var(--line-2); border-radius: 2px; background: var(--bg-2); }
.plan--featured { border-color: var(--accent); background: var(--bg); }
.plan__badge { position: absolute; top: -0.7rem; right: 1.2rem; padding: 0.2rem 0.6rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--bg); background: var(--accent); }
.plan__price { display: flex; align-items: baseline; gap: 0.4rem; }
.plan__amount { font-size: 2.5rem; font-weight: 300; letter-spacing: -0.03em; line-height: 1; }
.plan__period { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }
.plan p { font-size: 0.9375rem; color: var(--muted); }
.plan ul { flex: 1; list-style: none; margin: 0; padding: 0; font-size: 0.9375rem; }
.plan li { display: flex; gap: 0.7rem; padding: 0.55rem 0; border-top: 1px solid var(--line); }
.plan li::before { content: "+"; font-family: var(--mono); color: var(--accent); }
.purchase { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.2rem; margin-top: 1.2rem; padding: 1.4rem 1.6rem; border: 1px dashed var(--line-2); }
.purchase h3 { margin-bottom: 0.3rem; }
.purchase p { font-size: 0.9375rem; color: var(--muted); }
.fineprint { margin-top: 1.2rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }

/* download */
.downloads { border-top: 1px solid var(--line-2); }
.download { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto; gap: 1.2rem; align-items: center; padding: 1.1rem 0; border-bottom: 1px solid var(--line-2); }
.download strong { font-weight: 400; }
.download span { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }
.download .btn { padding: 0.8rem 1.1rem; }
@media (max-width: 700px) {
  .download { grid-template-columns: minmax(0, 1fr) auto; row-gap: 0.3rem; }
  .download .btn { grid-column: 2; grid-row: 1 / span 3; }
}

/* registrazione */
.account { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gutter); align-items: center; margin-top: 2.4rem; padding: 1.8rem; border: 1px solid var(--accent); }
.account h3 { font-size: 1.5rem; font-weight: 300; margin-bottom: 0.6rem; }
.account p { color: var(--muted); }
.account__actions { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: flex-end; }
@media (max-width: 800px) { .account { grid-template-columns: minmax(0, 1fr); } .account__actions { justify-content: flex-start; } }

/* documentazione */
.docs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gutter); border-top: 1px solid var(--line-2); }
@media (max-width: 700px) { .docs { grid-template-columns: minmax(0, 1fr); } }
.doc { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line-2); color: var(--text); }
.doc:hover { color: var(--accent); }
.doc small { display: block; margin-top: 0.2rem; font-size: 0.875rem; color: var(--muted); }

/* community */
.community { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.2rem; }
@media (max-width: 960px) { .community { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .community { grid-template-columns: minmax(0, 1fr); } }
.community-card { display: flex; flex-direction: column; gap: 0.8rem; padding: 1.4rem; color: var(--text); border: 1px solid var(--line-2); border-radius: 2px; transition: border-color 160ms ease, background-color 160ms ease; }
.community-card:hover { color: var(--text); border-color: var(--accent); background: var(--bg-2); }
.community-card p { flex: 1; font-size: 0.875rem; color: var(--muted); }
.socials { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.2rem; margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.socials ul.social { margin: 0; }

/* OpenBack */
.stats--wide { grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: calc(var(--space) * 0.6); }
@media (max-width: 900px) { .stats--wide { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.plans--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 52rem; }
@media (max-width: 700px) { .plans--2 { grid-template-columns: minmax(0, 1fr); } }
.plans + .notice { margin-top: 1.6rem; max-width: 52rem; }
.community--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 2rem; }
@media (max-width: 700px) { .community--2 { grid-template-columns: minmax(0, 1fr); } }
.community-card--soon { opacity: 0.6; border-style: dashed; }
.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; list-style: none; margin: 0; padding: 0; }
.chips a {
  display: inline-block; padding: 0.55rem 0.9rem; border: 1px solid var(--line-2); border-radius: 2px;
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04rem; color: var(--text);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.chips a:hover { border-color: var(--accent); box-shadow: 0 0 16px -6px var(--glow); }

/* scheda in evidenza a tutta larghezza nell'elenco dei progetti */
.project--featured { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.project--featured .project__media { border-bottom: 0; border-right: 1px solid var(--line); }
.project--featured .project__media img { height: 100%; }
.project--featured .project__body { justify-content: center; padding: 2rem; }
.project--featured h3 { font-size: 1.75rem; font-weight: 300; }
@media (max-width: 700px) {
  .project--featured { display: flex; }
  .project--featured .project__media { border-right: 0; border-bottom: 1px solid var(--line); }
}

/* indice progetti */
.project__link { margin-top: 0.4rem; }
.project[hidden] { display: none; }
.section__more { display: flex; justify-content: flex-end; margin-top: 1.6rem; }

/* =========================================================
   Documentazione: barra, tre colonne, testo
   ========================================================= */
.docs-bar__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem var(--gutter); }
.lang { display: inline-flex; border: 1px solid var(--line-2); border-radius: 2px; }
.lang a { padding: 0.35rem 0.7rem; font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }
.lang a[aria-current] { color: var(--bg); background: var(--accent); }

.docs-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr) 190px; border-top: 1px solid var(--line); }
@media (max-width: 1100px) { .docs-layout { grid-template-columns: 230px minmax(0, 1fr); } .docs-toc { display: none; } }
@media (max-width: 800px) { .docs-layout { grid-template-columns: minmax(0, 1fr); } }

.docs-nav { border-right: 1px solid var(--line); font-size: 0.9375rem; }
.docs-nav > nav { position: sticky; top: 64px; max-height: calc(100vh - 64px); overflow: auto; padding: 1.6rem var(--gutter) 2rem 1.6rem; }
.docs-nav summary { display: none; }
@media (max-width: 800px) {
  .docs-nav { border-right: 0; border-bottom: 1px solid var(--line); }
  .docs-nav summary { display: block; padding: 1rem var(--gutter); cursor: pointer; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--muted); }
  .docs-nav > nav { position: static; max-height: none; padding-top: 0; }
}
.docs-nav ul { list-style: none; margin: 0; padding: 0; }
.docs-nav li { margin: 0.15rem 0; }
.docs-nav ul ul { margin: 0.3rem 0 0.6rem 0.6rem; padding-left: 0.8rem; border-left: 1px solid var(--line-2); }
.docs-nav a { display: block; padding: 0.3rem 0; color: var(--muted); }
.docs-nav a:hover { color: var(--text); }
.docs-nav a[aria-current="page"] { color: var(--accent); text-shadow: 0 0 12px var(--glow); }
.docs-nav .soon { display: block; padding: 0.3rem 0; color: var(--dim); }
.docs-nav__head { margin: 1.6rem 0 0.4rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.docs-nav__type { display: block; font-family: var(--mono); font-size: 0.625rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); margin-top: 0.4rem; }

.docs-toc { border-left: 1px solid var(--line); }
.docs-toc > * { position: sticky; }
.docs-toc p { top: 64px; margin: 0; padding: 1.6rem 1.2rem 0.6rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.docs-toc ul { top: 110px; list-style: none; margin: 0; padding: 0 1.2rem; font-size: 0.875rem; }
.docs-toc a { display: block; padding: 0.25rem 0; color: var(--muted); }
.docs-toc a:hover { color: var(--text); }

.docs-main { min-width: 0; max-width: 50rem; padding: 2.4rem var(--gutter) var(--space); }
.docs-head { margin-bottom: 2rem; }
.docs-head h1 { margin: 0.9rem 0 0.8rem; font-size: clamp(2rem, 1.5rem + 1.8vw, 3rem); }
.prose .lead { font-size: 1.1875rem; line-height: 1.55; color: var(--muted); }
.doc-type { display: inline-block; padding: 0.25rem 0.6rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; border: 1px solid var(--line-2); border-radius: 2px; color: var(--muted); }
.doc-type--howto { color: var(--accent); border-color: var(--accent); box-shadow: 0 0 14px -6px var(--glow); }
.doc-type--ref { color: #ffa05a; border-color: rgba(255, 160, 90, 0.6); }

.prose section { margin-top: 2.8rem; scroll-margin-top: 80px; }
.prose h2 { padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: 1.5rem; font-weight: 400; }
.prose h3 { margin: 1.8rem 0 0.6rem; font-size: 1.125rem; font-weight: 500; }
.prose p, .prose ul, .prose ol, .prose table, .prose pre, .prose dl { margin: 1rem 0 0; }
.prose p, .prose li, .prose td { line-height: 1.65; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin: 0.35rem 0; }
.prose b { font-weight: 500; color: var(--text); }
.prose code, .prose kbd { font-family: var(--mono); font-size: 0.85em; padding: 0.1em 0.35em; background: var(--bg-3); border: 1px solid var(--line); border-radius: 2px; }
.prose pre { overflow-x: auto; padding: 1rem 1.2rem; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 2px; }
.prose pre code { padding: 0; background: none; border: 0; font-size: 0.8125rem; line-height: 1.6; color: #cfe6ff; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; display: block; overflow-x: auto; }
.prose th { text-align: left; padding: 0.6rem 0.8rem 0.6rem 0; font-family: var(--mono); font-size: 0.6875rem; font-weight: 400; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); border-bottom: 1px solid var(--line-2); white-space: nowrap; }
.prose td { padding: 0.7rem 0.8rem 0.7rem 0; vertical-align: top; border-bottom: 1px solid var(--line); color: var(--muted); }
.prose td:first-child { color: var(--text); }
.prose .soon { color: var(--dim); }
.prose .soon small { margin-left: 0.4rem; font-family: var(--mono); font-size: 0.625rem; text-transform: uppercase; letter-spacing: 0.04rem; }

.doc-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 0; border: 1px solid var(--line-2); border-radius: 2px; }
.doc-meta div { padding: 0.9rem 1rem; border-right: 1px solid var(--line); }
.doc-meta div:last-child { border-right: 0; }
.doc-meta dt { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.doc-meta dd { margin: 0.3rem 0 0; font-size: 0.9375rem; }

.howto-steps { list-style: none; padding: 0; counter-reset: step; }
.howto-steps > li { position: relative; counter-increment: step; margin: 0; padding: 0 0 1.8rem 3.2rem; border-left: 1px solid var(--line-2); margin-left: 1rem; }
.howto-steps > li:last-child { border-left-color: transparent; }
.howto-steps > li::before {
  content: counter(step, decimal-leading-zero); position: absolute; left: -1rem; top: -0.2rem;
  display: grid; place-items: center; width: 2rem; height: 2rem;
  font-family: var(--mono); font-size: 0.75rem; color: var(--accent);
  background: var(--bg); border: 1px solid var(--accent); border-radius: 50%; box-shadow: 0 0 14px -4px var(--glow);
}
.howto-steps h3 { margin: 0 0 0.4rem; }
.expect { padding: 0.7rem 0.9rem; font-size: 0.9375rem; color: var(--muted); background: linear-gradient(90deg, rgba(60, 200, 255, 0.07), transparent); border-left: 2px solid var(--accent); }
.expect span { display: block; margin-bottom: 0.2rem; font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--accent); }

.example-io { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; }
@media (max-width: 700px) { .example-io { grid-template-columns: minmax(0, 1fr); } }
.example-io span { font-family: var(--mono); font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.04rem; color: var(--dim); }
.example-io pre { margin-top: 0.4rem; height: calc(100% - 1.4rem); }

.page-list { list-style: none; padding: 0 !important; border-top: 1px solid var(--line); }
.page-list li { margin: 0; padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
.page-list--inline { display: flex; flex-wrap: wrap; gap: 0.5rem; border: 0; }
.page-list--inline li { padding: 0; border: 0; }
.page-list--inline li > * { display: inline-block; padding: 0.4rem 0.7rem; border: 1px solid var(--line-2); border-radius: 2px; }
.concepts { display: grid; gap: 0; border-top: 1px solid var(--line); }
.concepts div { display: grid; grid-template-columns: minmax(0, 12rem) minmax(0, 1fr); gap: 1.2rem; padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
@media (max-width: 600px) { .concepts div { grid-template-columns: minmax(0, 1fr); gap: 0.3rem; } }
.concepts dt { font-weight: 500; }
.concepts dd { margin: 0; color: var(--muted); }
.start { padding: 1rem 1.2rem; border: 1px solid var(--accent); box-shadow: 0 0 30px -16px var(--glow); }

.kinds { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; }
@media (max-width: 800px) { .kinds { grid-template-columns: minmax(0, 1fr); } }
.kind { padding: 1.2rem; border: 1px solid var(--line-2); border-radius: 2px; }
.kind p { font-size: 0.9375rem; color: var(--muted); }
.area-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 0.8rem; }
.area-card { display: flex; flex-direction: column; gap: 0.4rem; padding: 1.1rem; color: var(--text); border: 1px solid var(--line-2); border-radius: 2px; transition: border-color 160ms ease, box-shadow 160ms ease; }
.area-card:hover { color: var(--text); border-color: var(--accent); box-shadow: 0 0 24px -12px var(--glow); }
.area-card b { font-weight: 500; }
.area-card span { font-size: 0.875rem; color: var(--muted); }
.area-card--soon { opacity: 0.55; border-style: dashed; }
.topic-list { columns: 2; column-gap: 2rem; }
@media (max-width: 600px) { .topic-list { columns: 1; } }

/* =========================================================
   Luce: aloni blu e bagliori ciano, usati con misura
   ========================================================= */
.hero { background: radial-gradient(60% 70% at 70% 55%, var(--haze), transparent 70%); }
.eyebrow::before, .trust li::before { box-shadow: 0 0 8px var(--accent); }
.btn--primary { box-shadow: 0 0 0 1px var(--accent), 0 6px 24px -10px var(--glow); }
.btn--primary:hover { box-shadow: 0 0 0 1px var(--accent-2), 0 8px 32px -6px var(--glow); }
.nav__cta a { box-shadow: 0 4px 20px -8px var(--glow); }
.service::before { box-shadow: 0 0 10px var(--accent); }
.service:hover, .example:hover, .resource:hover { background: linear-gradient(180deg, rgba(60, 200, 255, 0.06), transparent 70%), var(--bg-2); }
.project:hover .project__media { box-shadow: inset 0 -1px 0 var(--accent); }
.card--accent, .plan--featured, .account { box-shadow: 0 0 40px -18px var(--glow); }
.community-card:hover { box-shadow: 0 0 30px -14px var(--glow); }
.stats dd, .plan__amount { text-shadow: 0 0 24px rgba(60, 200, 255, 0.25); }
.subnav a[aria-current] { text-shadow: 0 0 12px var(--glow); }
.band { background: radial-gradient(70% 90% at 50% 50%, rgba(28, 70, 160, 0.16), transparent 75%); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}