:root {
  --ink: #071426;
  --ink-soft: #46546a;
  --blue: #075cff;
  --blue-bright: #2877ff;
  --ice: #eef5ff;
  --line: #dce4ef;
  --white: #fff;
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.6; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(220,228,239,.85); background: rgba(255,255,255,.9); backdrop-filter: blur(16px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { text-decoration: none; }
.brand img { width: 150px; }
nav { display: flex; align-items: center; gap: 26px; }
nav a { color: var(--ink-soft); font-size: .92rem; font-weight: 650; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--blue); }
.nav-blueprint { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; }
.eyebrow { color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.035em; }
h1 { font-size: clamp(3rem, 7.5vw, 6.8rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: 1.35rem; }
p { color: var(--ink-soft); }
.lead-copy { font-size: 1.18rem; }
.text-link { color: var(--blue); font-weight: 800; text-decoration: none; }
.hero { overflow: hidden; padding: clamp(90px, 13vw, 170px) 0 100px; background: radial-gradient(circle at 82% 8%, #cfe1ff 0, transparent 30%), linear-gradient(180deg,#f8fbff 0%,#fff 75%); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(300px,.65fr); gap: 70px; align-items: end; }
.hero h1 { max-width: 920px; margin: 22px 0 28px; }
.hero h1 span { color: var(--blue); }
.hero-copy { max-width: 680px; font-size: clamp(1.15rem,2vw,1.45rem); }
.actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 35px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 8px; font-weight: 750; text-decoration: none; }
.button-primary { color: white; background: var(--blue); box-shadow: 0 12px 35px rgba(7,92,255,.23); }
.button-secondary { border: 1px solid var(--line); background: white; }
.hero-note { border-left: 2px solid var(--blue); padding-left: 25px; }
.hero-note strong { display: block; font-size: 1.05rem; }
.section { padding: 105px 0; }
.section-tint { background: var(--ice); }
.section-dark { color: white; background: var(--ink); }
.section-dark p { color: #aab9ce; }
.section-heading { max-width: 720px; margin-bottom: 52px; }
.section-heading p { font-size: 1.12rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card { min-height: 245px; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: white; }
.card-number { color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .12em; }
.use-case-preview { display: grid; grid-template-columns: 1.35fr .9fr; gap: 20px 70px; align-items: end; }
.use-case-preview .section-heading { margin-bottom: 0; }
.use-case-preview .button { justify-self: start; }
.preview-list { display: grid; border-top: 1px solid var(--line); }
.preview-list span { padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 750; }
.split { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.feature-list { display: grid; gap: 0; }
.feature { padding: 25px 0; border-top: 1px solid rgba(255,255,255,.14); }
.feature h3 { margin-bottom: 8px; }
.feature p { margin: 0; }
.product-panel { position: relative; overflow: hidden; padding: 50px; border-radius: 20px; color: white; background: linear-gradient(135deg,#071426 0%,#0a2f70 60%,#075cff 130%); }
.product-panel::after { content: "rAInty"; position: absolute; right: -10px; bottom: -45px; opacity: .08; font-size: 8rem; font-weight: 900; }
.product-panel p { max-width: 700px; color: #c9d7ed; }
.page-hero { padding: 105px 0 70px; background: linear-gradient(180deg,#f2f7ff,white); }
.page-hero h1 { max-width: 900px; margin: 18px 0 20px; font-size: clamp(2.8rem,6vw,5.4rem); }
.page-hero p { max-width: 720px; font-size: 1.2rem; }
.prose { max-width: 800px; padding-top: 65px; padding-bottom: 100px; }
.prose h2 { margin-top: 55px; font-size: 2rem; }
.prose h3 { margin-top: 35px; }
.prose li { margin-bottom: 10px; color: var(--ink-soft); }
.notice { margin: 35px 0; padding: 20px 24px; border-left: 3px solid var(--blue); background: var(--ice); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; padding: 70px 0 110px; }
.contact-card { padding: 35px; border: 1px solid var(--line); border-radius: 16px; }
.contact-card a { color: var(--blue); font-weight: 750; }
.contact-card address { margin: 0 0 14px; font-style: normal; line-height: 1.7; }
.contact-card .contact-meta { margin: 0 0 18px; color: var(--muted); font-size: .9rem; }
.contact-map-section { padding-bottom: 110px; }
.contact-map-section h2 { margin-bottom: 22px; }
/* Altezza fissa: il segnaposto e la mappa devono occupare lo stesso spazio,
   altrimenti al clic la pagina sobbalza sotto il dito. */
.map-frame { position: relative; height: 420px; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; }
.map-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.map-placeholder { display: flex; height: 100%; flex-direction: column; align-items: center; justify-content: center; gap: 12px; padding: 30px; text-align: center; background: var(--surface, #f5f7fb); }
.map-placeholder p { margin: 0; max-width: 520px; }
.map-placeholder .map-note { color: var(--muted); font-size: .88rem; }
.map-placeholder button { padding: 12px 22px; border: 0; border-radius: 10px; background: var(--blue); color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
.map-placeholder button:hover { filter: brightness(1.08); }
.map-placeholder a { color: var(--blue); font-size: .9rem; font-weight: 650; }
.security-page { padding-top: 80px; padding-bottom: 110px; }
.security-page > section { margin-top: 110px; }
.security-page > section:first-child { margin-top: 0; }
.security-introduction, .security-feature { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.security-introduction h2, .security-feature h2 { margin-top: 12px; }
.security-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.security-card { min-height: 255px; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: white; }
.security-card > span { color: var(--blue); font-size: .75rem; font-weight: 850; letter-spacing: .12em; }
.security-card h3 { margin: 42px 0 10px; }
.security-card p { margin-bottom: 0; }
.security-feature { padding: 55px; border: 1px solid var(--line); border-radius: 20px; }
.security-feature ul, .disclosure-panel ul { padding-left: 20px; color: var(--ink-soft); }
.security-feature li, .disclosure-panel li { margin-bottom: 10px; }
.security-feature-dark { color: white; border-color: transparent; background: var(--ink); }
.security-feature-dark p, .security-feature-dark li { color: #b7c4d7; }
.security-contained { border: 0; }
.product-security-card { display: flex; align-items: end; justify-content: space-between; gap: 50px; padding: 35px; border: 1px solid var(--line); border-radius: 16px; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
.product-security-card:hover { border-color: var(--blue); transform: translateY(-2px); }
.product-security-card h3 { margin: 10px 0; font-size: 1.8rem; }
.product-security-card p { max-width: 690px; margin-bottom: 0; }
.product-security-card > strong { flex: none; color: var(--blue); }
.disclosure-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; padding: 55px; border-radius: 20px; color: white; background: linear-gradient(135deg,#071426,#0a2f70 70%,#075cff 140%); }
.disclosure-panel p, .disclosure-panel li { color: #c9d7ed; }
.security-email { display: inline-block; margin-top: 12px; color: white; font-size: clamp(1.25rem,2.5vw,2rem); font-weight: 800; text-decoration-color: #78a9ff; }
.privacy-page { padding-top: 55px; padding-bottom: 110px; }
.privacy-page > section { margin-top: 0; }
.legal-meta { display: flex; flex-wrap: wrap; gap: 12px 30px; padding-bottom: 30px; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: .88rem; }
.legal-meta strong { margin-right: 6px; color: var(--ink); }
.privacy-scope { margin: 35px 0 20px; }
.privacy-scope p { margin: 6px 0 0; }
.legal-section { display: grid; grid-template-columns: .65fr 1.35fr; gap: 80px; padding: 55px 0; border-bottom: 1px solid var(--line); }
.legal-section h2 { margin: 10px 0 0; font-size: clamp(1.75rem,3vw,2.5rem); }
.legal-section p:first-child { margin-top: 0; }
.legal-section ul { padding-left: 20px; color: var(--ink-soft); }
.legal-section li { margin-bottom: 10px; }
.legal-number { color: var(--blue); font-size: .75rem; font-weight: 850; letter-spacing: .12em; }
.legal-section-ai { margin: 35px 0 90px !important; padding: 45px; border: 0; border-radius: 18px; background: var(--ice); }
.privacy-page .product-security-card { margin-bottom: 55px; }
.privacy-contact { padding: 55px; border-radius: 20px; color: white; background: linear-gradient(135deg,#071426,#0a2f70 70%,#075cff 140%); }
.privacy-contact h2 { margin: 12px 0; }
.privacy-contact p { color: #c9d7ed; }
.privacy-contact > a { color: white; font-size: clamp(1.25rem,2.5vw,2rem); font-weight: 800; text-decoration-color: #78a9ff; }
.cookie-status { margin: 40px 0 25px; padding: 38px; border: 1px solid #b9d1ff; border-radius: 18px; background: var(--ice); }
.cookie-status h2 { margin: 12px 0; }
.cookie-status p { margin-bottom: 0; }
.cookie-table-wrap { overflow-x: auto; margin-top: 28px; }
.cookie-table { width: 100%; border-collapse: collapse; min-width: 620px; }
.cookie-table th, .cookie-table td { padding: 15px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.cookie-table th { color: var(--ink); background: var(--ice); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.cookie-table td { color: var(--ink-soft); }
.use-cases-section { overflow: hidden; }
.carousel-tabs { display: grid; grid-template-columns: repeat(3,1fr); margin-bottom: 48px; border-bottom: 1px solid var(--line); }
.carousel-tabs button { position: relative; padding: 18px 15px 20px; border: 0; color: var(--ink-soft); background: transparent; font: inherit; font-weight: 750; text-align: left; cursor: pointer; }
.carousel-tabs button span { display: block; margin-bottom: 7px; color: var(--blue); font-size: .72rem; letter-spacing: .12em; }
.carousel-tabs button::after { content: ""; position: absolute; right: 0; bottom: -1px; left: 0; height: 3px; background: transparent; }
.carousel-tabs button[aria-selected="true"] { color: var(--ink); }
.carousel-tabs button[aria-selected="true"]::after { background: var(--blue); }
.carousel-track { min-height: 680px; }
.use-case-slide { display: grid; grid-template-columns: .85fr 1.15fr; gap: 85px; animation: slide-in .35s ease both; }
.use-case-slide[hidden] { display: none; }
.use-case-intro { display: flex; flex-direction: column; min-height: 650px; padding: 40px; border-radius: 20px; color: white; background: linear-gradient(150deg,#071426,#0a2f70 72%,#075cff 140%); }
.use-case-intro h2 { margin: 18px 0 25px; font-size: clamp(2.2rem,4vw,3.5rem); }
.use-case-intro p { color: #c9d7ed; }
.outcome { margin-top: auto; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.2); }
.outcome strong, .outcome span { display: block; }
.outcome strong { margin-bottom: 6px; color: #78a9ff; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.outcome span { color: #e5edfa; }
.use-case-detail { padding: 22px 0; }
.use-case-detail > h3 { margin-top: 38px; }
.use-case-detail > h3:first-child { margin-top: 0; }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: use-step; }
.steps li { display: grid; grid-template-columns: 120px 1fr; gap: 22px; padding: 18px 0; border-top: 1px solid var(--line); counter-increment: use-step; }
.steps li:first-child { border-top-color: var(--ink); }
.steps strong { color: var(--ink); }
.steps span { color: var(--ink-soft); }
.privacy-callout, .human-control { margin-top: 30px; padding: 22px 24px; border-left: 3px solid var(--blue); background: var(--ice); }
.privacy-callout p, .human-control p { margin: 6px 0 0; }
.system-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 25px; }
.system-tags span { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .78rem; font-weight: 700; }
.carousel-controls { display: flex; align-items: center; justify-content: flex-end; gap: 16px; margin-top: 30px; }
.carousel-arrow { width: 45px; height: 45px; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); background: white; font-size: 1.15rem; cursor: pointer; }
.carousel-arrow:hover { border-color: var(--blue); color: var(--blue); }
@keyframes slide-in { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: translateX(0); } }
/* work with us */
.collab-cta { padding: 55px; border-radius: 20px; color: white; background: linear-gradient(135deg,#071426,#0a2f70 70%,#075cff 140%); }
.collab-cta h2 { margin: 12px 0; }
.collab-cta p { max-width: 640px; color: #c9d7ed; }
.collab-cta .button { margin-top: 22px; background: white; color: var(--ink); box-shadow: none; }
.challenge { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: white; }
.challenge-head { display: grid; grid-template-columns: 1fr auto; gap: 45px; align-items: start; padding: 42px 45px 36px; }
.challenge-head h3 { margin: 12px 0 16px; font-size: clamp(1.5rem,2.6vw,2.1rem); }
.challenge-head p { margin: 0 0 12px; }
.challenge-head p:last-child { margin-bottom: 0; }
.challenge-head strong { color: var(--ink); }
.challenge-reward { padding: 20px 30px; border-radius: 14px; color: white; text-align: center; background: linear-gradient(135deg,#071426,#0a2f70 70%,#075cff 140%); }
.challenge-reward span { display: block; color: #78a9ff; font-size: .7rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.challenge-reward strong { display: block; margin-top: 6px; color: white; font-size: 2.4rem; font-weight: 850; letter-spacing: -.04em; }
.challenge-reward em { display: block; margin-top: 2px; color: #a9c2e8; font-size: .78rem; font-style: normal; font-weight: 650; }
.challenge-parts { margin: 18px 0 0; padding: 0; list-style: none; }
.challenge-parts li { display: grid; grid-template-columns: 34px 1fr auto; gap: 20px; align-items: baseline; padding: 16px 0; border-top: 1px solid var(--line); }
.challenge-parts li:first-child { border-top-color: var(--ink); }
.challenge-parts span { color: var(--blue); font-size: .78rem; font-weight: 850; letter-spacing: .1em; }
.challenge-parts strong { display: block; color: var(--ink); font-size: 1.05rem; }
.challenge-parts p { margin: 4px 0 0; }
.challenge-parts b { color: var(--ink); font-size: 1.25rem; font-weight: 850; letter-spacing: -.02em; }
.challenge-tags { padding: 0 45px 38px; }
.challenge-tags .system-tags { margin-top: 0; }
.challenge-body { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--line); }
.challenge-block { padding: 34px 45px; background: white; }
.challenge-block-wide { grid-column: 1 / -1; }
.challenge-block h4 { margin: 0 0 16px; color: var(--blue); font-size: .8rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.challenge-block p { margin: 14px 0 0; }
.challenge-block ul { margin: 0; padding-left: 19px; }
.challenge-block li { margin-bottom: 10px; color: var(--ink-soft); }
.challenge-block li:last-child { margin-bottom: 0; }
.challenge-block strong { color: var(--ink); }
.challenge-more { margin-top: 26px; text-align: center; }
.challenge-block code { padding: 2px 6px; border-radius: 5px; background: var(--ice); font-size: .88em; }

/* challenges — pagine servite dal challenge-service, stesse classi del sito */
.challenge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 22px; }
.challenge-card { display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: white; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
.challenge-card:hover { border-color: var(--blue); transform: translateY(-2px); }
.challenge-card-top { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.challenge-card-code { color: var(--blue); font-size: .78rem; font-weight: 850; letter-spacing: .12em; }
.challenge-card-reward { font-size: 1.35rem; font-weight: 850; letter-spacing: -.03em; }
.challenge-card h2 { margin: 14px 0 10px; font-size: 1.3rem; }
.challenge-card p { flex: 1; margin: 0; }
.challenge-card .system-tags { margin-top: 18px; }
.challenge-card-meta { margin-top: 16px; color: var(--ink-soft); font-size: .82rem; }
.challenge-empty { max-width: 560px; font-size: 1.1rem; }
.challenge-detail { display: grid; grid-template-columns: minmax(0,1.6fr) minmax(280px,.4fr); gap: 60px; align-items: start; }
.challenge-section { padding-bottom: 34px; margin-bottom: 34px; border-bottom: 1px solid var(--line); }
.challenge-section:last-child { border-bottom: 0; }
.challenge-section h2 { font-size: 1.6rem; }

/* Corpo scritto in markdown. Le regole sono volutamente poche: questa via
   esiste per dare a una challenge un impaginato che i blocchi non permettono,
   e uno stile invadente qui rifarebbe la gabbia da cui si voleva uscire.
   I titoli partono da h3 perche il rendering li fa scivolare di un livello:
   l'h1 della pagina e gia il titolo della challenge. */
.challenge-markdown h3 { font-size: 1.35rem; margin: 28px 0 10px; }
.challenge-markdown h4 { font-size: 1.1rem; margin: 22px 0 8px; }
.challenge-markdown p { margin: 0 0 14px; }
.challenge-markdown ul, .challenge-markdown ol { margin: 0 0 16px; padding-left: 22px; }
.challenge-markdown li { margin-bottom: 6px; }
.challenge-markdown img { max-width: 100%; height: auto; }
.challenge-markdown pre { overflow-x: auto; padding: 14px; border-radius: 8px; background: rgba(7, 20, 38, 0.06); }
.challenge-markdown code { font-size: 0.92em; }
.challenge-markdown blockquote { margin: 0 0 16px; padding-left: 16px; border-left: 3px solid var(--line); }
/* Le tabelle sono il caso piu frequente di contenuto piu largo dello schermo:
   scorrono dentro il proprio contenitore invece di allargare la pagina. */
.challenge-markdown table { width: 100%; border-collapse: collapse; margin: 0 0 18px; display: block; overflow-x: auto; }
.challenge-markdown th, .challenge-markdown td { padding: 8px 12px; border: 1px solid var(--line); text-align: left; }

.challenge-body-missing { color: #92400e; }
.challenge-section ul { padding-left: 20px; color: var(--ink-soft); }
.challenge-section li { margin-bottom: 10px; }
.challenge-section code { padding: 2px 6px; border-radius: 5px; background: var(--ice); font-size: .88em; }
.challenge-section-binding { padding-left: 24px; border-left: 3px solid var(--blue); }
.challenge-binding-flag { margin: -6px 0 14px; color: var(--blue); font-size: .78rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.challenge-aside { position: sticky; top: 100px; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: var(--ice); }
.challenge-aside dl { margin: 0 0 22px; }
.challenge-aside dt { color: var(--ink-soft); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.challenge-aside dd { margin: 2px 0 16px; color: var(--ink); font-size: 1.05rem; font-weight: 700; }
.challenge-aside .button { width: 100%; }
.challenge-aside-note { margin: 14px 0 0; font-size: .84rem; }

/* status page embed */
.status-embed-wrap { border-top: 1px solid var(--line); }
.status-embed { display: block; width: 100%; min-height: 80vh; border: none; background: #071426; }

/* footer status link */
.footer-status-link { display: flex !important; align-items: center; gap: 7px; }
.footer-status-dot {
  width: 7px; height: 7px;
  background: #22c55e;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(34, 197, 94, .2);
  animation: footer-pulse 2.5s ease-in-out infinite;
}
@keyframes footer-pulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(34, 197, 94, .2); }
  50%       { box-shadow: 0 0 0 5px rgba(34, 197, 94, .07); }
}

.site-footer { padding: 70px 0 25px; color: white; background: #041020; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; }
.footer-grid img { margin-bottom: 20px; }
.footer-grid p { max-width: 350px; color: #91a1b8; }
.footer-grid h2 { margin-bottom: 18px; color: #789ee8; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-grid a { display: block; margin: 8px 0; color: #d8e1ee; text-decoration: none; }
.footer-legal { margin-top: 55px; padding-top: 22px; border-top: 1px solid #1a2a3e; color: #72839a; font-size: .8rem; line-height: 1.6; }
.footer-legal p { margin: 0; }
.footer-legal strong { color: #91a1b8; font-weight: 650; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 18px; color: #72839a; font-size: .85rem; }

@media (max-width: 800px) {
  .header-inner { min-height: 68px; }
  nav a:not(.nav-blueprint) { display: none; }
  .hero-grid, .split, .contact-grid, .use-case-preview, .use-case-slide, .security-introduction, .security-feature, .disclosure-panel { grid-template-columns: 1fr; gap: 45px; }
  .grid-3, .footer-grid, .security-grid { grid-template-columns: 1fr; }
  .use-case-preview .button { grid-column: 1; }
  .carousel-tabs { grid-template-columns: 1fr; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
  .carousel-tabs button { border-bottom: 1px solid var(--line); }
  .carousel-tabs button:last-child { border-bottom: 0; }
  .carousel-tabs button::after { top: 0; right: auto; bottom: 0; width: 3px; height: auto; }
  .carousel-track { min-height: 0; }
  .use-case-intro { min-height: 0; padding: 30px 25px; }
  .outcome { margin-top: 45px; }
  .steps li { grid-template-columns: 1fr; gap: 5px; }
  .security-page { padding-top: 55px; padding-bottom: 75px; }
  .security-page > section { margin-top: 75px; }
  .security-feature, .disclosure-panel { padding: 32px 25px; }
  .product-security-card { align-items: start; flex-direction: column; gap: 25px; padding: 28px 24px; }
  .privacy-page { padding-top: 40px; padding-bottom: 75px; }
  .legal-section { grid-template-columns: 1fr; gap: 22px; padding: 42px 0; }
  .legal-section-ai { margin-bottom: 65px !important; padding: 30px 25px; }
  .privacy-contact, .collab-cta { padding: 35px 25px; }
  .challenge-detail { grid-template-columns: 1fr; gap: 40px; }
  .challenge-aside { position: static; }
  .challenge-head { grid-template-columns: 1fr; gap: 28px; padding: 32px 25px 28px; }
  .challenge-reward { justify-self: start; padding: 16px 26px; }
  .challenge-tags { padding: 0 25px 30px; }
  .challenge-body { grid-template-columns: 1fr; }
  .challenge-block { padding: 30px 25px; }
  .challenge-parts li { grid-template-columns: 30px 1fr; gap: 6px 14px; }
  .challenge-parts b { grid-column: 2; }
  .hero { padding-top: 90px; }
  .section { padding: 75px 0; }
  .product-panel { padding: 32px 25px; }
  .footer-bottom { flex-direction: column; }
}

/* ---------------------------------------------------- pagina /legal */

/* Una voce per documento: versione in evidenza, formati, impronta, archivio.
   L'impronta e' mostrata per intero e selezionabile: serve a confrontarla con
   quella citata nel proprio Ordine, quindi troncarla la renderebbe inutile. */

.legal-dates { margin: 0 0 18px; color: var(--muted); font-size: 0.95rem; }

.legal-download {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.legal-download:first-of-type { border-top: 0; padding-top: 0; }

.legal-lingua { margin: 0 0 10px; font-weight: 600; }
.legal-prevalente { font-weight: 400; color: var(--muted); }

.legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin: 0 0 12px;
}

.legal-digest {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.legal-digest span { text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.75rem; }
.legal-digest code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  /* L'impronta e' lunga 64 caratteri e su schermo stretto deve andare a capo
     invece di allargare la pagina. */
  word-break: break-all;
  user-select: all;
}

.legal-archivio { margin-top: 20px; font-size: 0.95rem; }
.legal-archivio summary { cursor: pointer; color: var(--muted); }
.legal-archivio ul { margin: 12px 0 0; padding-left: 20px; }
.legal-archivio li { margin-bottom: 16px; }
/* L'impronta di una versione superata sta sotto la sua riga, rientrata: chi
   apre l'archivio quasi sempre ha in mano quella versione e vuole verificarla. */
.legal-archivio .legal-digest { margin-top: 4px; }

/* Bozza: compare solo in DEV e TEST, dove la sincronizzazione gira con
   --allow-draft. Deve essere impossibile scambiare quei documenti per testi
   vincolanti — portano ragione sociale, sede e licenza vere. */
.legal-bozza {
  margin: 0 0 16px;
  border-left: 3px solid #b45309;
  background: rgba(180, 83, 9, 0.08);
  padding: 12px 16px;
  font-size: 0.9rem;
}
.legal-bozza strong { color: #b45309; text-transform: uppercase; letter-spacing: 0.04em; }

.legal-code {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: 8px;
  background: rgba(7, 20, 38, 0.06);
  overflow-x: auto;
  font-size: 0.85rem;
}
.legal-code code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* ── Foglio: documento tecnico dentro il sito ──────────────────────────────
   Non e' una pagina promozionale. Chi la legge sta per lavorare a una
   challenge, e probabilmente terra' questo testo accanto al codice — spesso
   come AGENTS.md. Quindi: un foglio bianco, testo scuro, misura di riga da
   documento, nessuna scheda e nessuna sezione alternata.
   La differenza rispetto al resto del sito e' voluta e va conservata. */

.foglio {
  max-width: 760px;              /* ~75 caratteri: la misura oltre cui rileggere
                                    la riga costa piu' che leggerla */
  margin: 0 auto;
  padding: 48px 24px 96px;
  background: var(--white);
  color: var(--ink);
}

.foglio-testa {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 28px;
  margin-bottom: 40px;
  border-bottom: 2px solid var(--ink);
}

.foglio-occhiello {
  margin: 0 0 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.foglio-testa h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.foglio-sottotitolo {
  margin: 8px 0 0;
  font-size: 1rem;
  color: var(--ink-soft);
}

.foglio-azioni { display: flex; gap: 8px; flex-shrink: 0; }

.foglio-azione {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  border-radius: 8px;
  padding: 8px 14px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  /* La larghezza non deve saltare quando l'etichetta diventa "Copied". */
  min-width: 84px;
}
.foglio-azione:hover { border-color: var(--ink-soft); }
.foglio-azione-primaria { background: var(--ink); color: var(--white); border-color: var(--ink); }
.foglio-azione-primaria:hover { background: #10233d; }

/* Il markdown reso. Gerarchia netta, perche' il documento si consulta a
   salti: si cerca una regola, non si legge da capo. */
.foglio-corpo { font-size: 1rem; line-height: 1.7; }
.foglio-corpo h2 {
  margin: 56px 0 14px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}
.foglio-corpo h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.foglio-corpo h3 { margin: 32px 0 10px; font-size: 1.05rem; }
.foglio-corpo p { margin: 0 0 18px; }
.foglio-corpo ul, .foglio-corpo ol { margin: 0 0 22px; padding-left: 22px; }
.foglio-corpo li { margin-bottom: 12px; }
.foglio-corpo li > strong:first-child { color: var(--ink); }
.foglio-corpo strong { font-weight: 650; }
.foglio-corpo a { color: var(--blue); }

/* Le regole separate da --- nel markdown diventano <hr>: il bordo degli h2
   fa gia' quel lavoro, quindi qui si nasconde per non raddoppiare la linea. */
.foglio-corpo hr { display: none; }

/* Il titolo del documento e' gia' nella testata della pagina. Nel markdown pero'
   deve restare, perche' il file scaricato diventa un AGENTS.md e senza titolo
   non si capisce cos'e': si nasconde qui, non si toglie di la'. */
.foglio-corpo > h1:first-child { display: none; }

/* "Part One" e "Part Two": divisori, non titoli. Distinguono le regole sul
   codice da quelle sul funzionamento del lavoro, e devono leggersi come uno
   stacco piu' che come una gerarchia. */
.foglio-corpo h1 {
  margin: 72px 0 0;
  padding: 18px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
}

/* Ogni regola e' un paragrafo che apre con il numero in grassetto. Il numero e'
   cio' che si cerca — una review cita "§3.2" — quindi si stacca dal testo. */
.foglio-corpo p > strong:first-child { color: var(--ink); }

.foglio-corpo code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--ice);
  padding: 1px 5px;
  border-radius: 4px;
}
/* Un blocco di codice non e codice in mezzo a una frase: la pastiglia chiara
   qui sopra, applicata dentro un <pre>, ci metteva uno sfondo per ogni riga e
   il testo spariva. Il blocco porta il suo sfondo, il <code> dentro non ne ha
   uno proprio. */
.foglio-corpo pre {
  margin: 0 0 22px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow-x: auto;
}
.foglio-corpo pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.86em;
  line-height: 1.6;
}

.foglio-piede {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* Stampato o salvato in PDF resta un documento: via i pulsanti, che su carta
   non servono a nessuno. */
@media print {
  .foglio-azioni { display: none; }
  .foglio { max-width: none; padding: 0; }
}

@media (max-width: 640px) {
  .foglio-testa { flex-direction: column; }
  .foglio-azioni { width: 100%; }
  .foglio-azione { flex: 1; }
}

/* Versione e impronta sotto il titolo. Non e' decorazione: la sezione Versions
   del documento promette che ogni versione sia pubblicata con data e impronta,
   e questa riga e' dove quella promessa viene mantenuta. */
.foglio-versione {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin: 14px 0 0;
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.foglio-impronta { display: inline-flex; align-items: baseline; gap: 6px; }
.foglio-impronta code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  /* Sessantaquattro caratteri: su schermo stretto vanno a capo invece di
     allargare la pagina. E si selezionano tutti in un colpo, perche' chi la
     legge la sta per confrontare. */
  word-break: break-all;
  user-select: all;
}

/* Bozza: rilevata dalla riga di versione del documento, non aggiunta a mano.
   Una v0.9 che dice "not for publication" non deve poter sembrare definitiva
   solo perche' qualcuno ha dimenticato di togliere o mettere un cartello. */
.foglio-bozza {
  margin: 0 0 40px;
  padding: 16px 20px;
  border-left: 3px solid #b45309;
  background: #fffbeb;
}
.foglio-bozza strong {
  display: block;
  margin-bottom: 6px;
  color: #92400e;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.foglio-bozza p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); }

/* Il blocco PENDING nel markdown: una regola che un revisore non puo' ancora
   citare, quindi non puo' bloccare l'accettazione. Va vista. */
.foglio-corpo blockquote {
  margin: 0 0 22px;
  padding: 14px 18px;
  border-left: 3px solid #b45309;
  background: #fffbeb;
  font-size: 0.92rem;
}
.foglio-corpo blockquote p { margin: 0 0 8px; }
.foglio-corpo blockquote p:last-child { margin-bottom: 0; }
