/* ATLANTE — sistema visivo
   Concetto: l'atlante anatomico come cartografia. Inchiostro blu profondo, linee di livello,
   coordinate in monospazio, un solo accento "ciano strumentale" e il segnale ambra per i valori fuori intervallo. */
/* caratteri del marchio, serviti da qui (nessuna richiesta a terzi) */
@font-face{font-family:'Bricolage Grotesque';src:url(fonts/BricolageGrotesque-Variable.woff2) format('woff2');font-weight:200 800;font-display:swap}
@font-face{font-family:'IBM Plex Sans';src:url(fonts/IBMPlexSans-Regular.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'IBM Plex Sans';src:url(fonts/IBMPlexSans-Medium.woff2) format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'IBM Plex Sans';src:url(fonts/IBMPlexSans-SemiBold.woff2) format('woff2');font-weight:600 700;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url(fonts/IBMPlexMono-Medium.woff2) format('woff2');font-weight:400 500;font-display:swap}
:root{
  --ink:#0a1b2e;          /* fondo hero, testi forti */
  --ink-2:#12283f;
  --ink-line:#22415f;
  --paper:#f6f8fa;        /* fondo pagine */
  --surface:#ffffff;
  --surface-2:#edf1f5;
  --line:#d6dee6;
  --fg:#0f1d2b;
  --muted:#566576;
  --on-ink:#e9f1f7;
  --on-ink-muted:#9db1c4;
  --accent:#0f8fa3;       /* ciano strumentale (su chiaro) */
  --accent-hi:#3fd3e6;    /* ciano su inchiostro */
  --accent-soft:#dcf1f4;
  --signal:#d98a1c;       /* fuori intervallo */
  --amber:#d98a1c;
  --accent-text:#0b6f80;  /* testo teal su chiaro, 5,8:1 */
  --focus:#0b6f80;
  --good-text:#1f6b42; --warn-text:#8a5200; --miss-text:#5d6a78;
  --crit:#b3261e; --crit-soft:#fbe9e7;
  --good:#2b8a57; --warn:#c07a12; --miss:#8592a0;
  --good-soft:#e2f2e9; --warn-soft:#fbefdc; --miss-soft:#e9edf1;
  --radius:16px;
  --display:'Bricolage Grotesque','Avenir Next','Segoe UI',system-ui,sans-serif;
  --body:'IBM Plex Sans','Helvetica Neue',Arial,system-ui,sans-serif;
  --mono:'IBM Plex Mono','SF Mono',Menlo,Consolas,monospace;
  --shadow:0 1px 2px rgba(10,27,46,.06),0 12px 32px rgba(10,27,46,.08);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0b1724;--surface:#112233;--surface-2:#16293c;--line:#24405a;--fg:#e6eef5;--muted:#9fb2c4;
  --accent:#3fc6d9;--accent-soft:#123844;--good:#5cc28c;--warn:#e3a24a;--miss:#8a98a8;
  --good-soft:#123222;--warn-soft:#3a2b12;--miss-soft:#1c2b3a;--amber:#f0b65c;--accent-text:#3fc6d9;--focus:#3fd3e6;--good-text:#5cc28c;--warn-text:#e3a24a;--miss-text:#9fb2c4;--crit:#f08a80;--crit-soft:#3b1f1c;--shadow:none;color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0b1724;--surface:#112233;--surface-2:#16293c;--line:#24405a;--fg:#e6eef5;--muted:#9fb2c4;
  --accent:#3fc6d9;--accent-soft:#123844;--good:#5cc28c;--warn:#e3a24a;--miss:#8a98a8;
  --good-soft:#123222;--warn-soft:#3a2b12;--miss-soft:#1c2b3a;--amber:#f0b65c;--accent-text:#3fc6d9;--focus:#3fd3e6;--good-text:#5cc28c;--warn-text:#e3a24a;--miss-text:#9fb2c4;--crit:#f08a80;--crit-soft:#3b1f1c;--shadow:none;color-scheme:dark}

[hidden]{display:none!important}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--ink)}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--display);line-height:1.08;margin:0;text-wrap:balance;letter-spacing:-.015em}
h1{font-size:clamp(2.3rem,6vw,4.4rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700;letter-spacing:-.005em}
p{margin:0}
.gut{padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.wrap{max-width:1180px;margin:0 auto}
.coord{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}
.lead{font-size:clamp(1.05rem,1.6vw,1.22rem);color:var(--muted);max-width:60ch}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:99;background:var(--surface);padding:8px 12px;border-radius:8px}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.nav :focus-visible,.hero :focus-visible,.ink-bg :focus-visible,footer.site :focus-visible,.upband :focus-visible,.auth :focus-visible,.page-hero :focus-visible,.zone-panel :focus-visible{outline-color:var(--accent-hi)}

/* ---------- top nav ---------- */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(10,27,46,.86);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(63,211,230,.14);color:var(--on-ink)}
.nav .wrap{display:flex;align-items:center;gap:22px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:700;font-size:1.25rem;letter-spacing:.14em}
.brand svg{width:28px;height:28px}
.brand img{display:block;height:32px;width:auto}
footer.site .brand img{height:36px}
.fclaim{margin-top:12px;font-family:var(--display);font-weight:500;font-size:1.05rem;color:var(--on-ink);letter-spacing:0}
.fdesc{margin-top:4px;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--on-ink-muted)}
.nav ul{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{display:block;padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--on-ink-muted);font-size:.92rem;font-weight:500}
.nav ul a:hover,.nav ul a[aria-current="page"]{color:var(--on-ink);background:rgba(255,255,255,.06)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:12px;padding:12px 20px;font:600 .98rem/1 var(--body);cursor:pointer;text-decoration:none;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-hi);color:var(--ink);box-shadow:0 8px 24px rgba(63,211,230,.28)}
.btn-primary:hover{background:#6fe0ee}
.btn-ghost{border-color:rgba(157,177,196,.4);color:var(--on-ink);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:var(--on-ink)}
.btn-line{border-color:var(--line);background:var(--surface);color:var(--fg)}
.btn svg{width:20px;height:20px}
.nav .btn{padding:9px 16px;font-size:.9rem}
.menu-btn{display:none;margin-left:auto;background:none;border:0;color:var(--on-ink);padding:8px;cursor:pointer}
@media (max-width:900px){
  .nav ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--ink);padding:10px max(20px,env(safe-area-inset-right,0px)) 18px max(20px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--ink-line)}
  .nav ul.open{display:flex}
  .menu-btn{display:block}
  .nav .cta-nav{display:none}
}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--on-ink);overflow:hidden;isolation:isolate}
.hero canvas.contours{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:.55}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:48px;align-items:center;padding-block:72px 88px}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-block:40px 56px;gap:28px}}
.hero .coord{color:var(--accent-hi)}
.hero h1{margin:14px 0 18px}
.hero h1 em{font-style:normal;color:var(--accent-hi)}
.hero .lead{color:var(--on-ink-muted)}

/* the upload bar: the one thing that matters */
.uploader{margin-top:30px;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));border:1px solid rgba(63,211,230,.35);border-radius:22px;padding:10px;box-shadow:0 30px 80px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);max-width:600px}
.uploader .bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.uploader .bar label{flex:1 1 240px;display:flex;align-items:center;gap:14px;cursor:pointer;padding:16px 18px;border-radius:16px;background:var(--accent-hi);color:var(--ink);font-weight:700;font-size:1.08rem;box-shadow:0 10px 30px rgba(63,211,230,.3);transition:background .15s}
.uploader .bar label:hover{background:#6fe0ee}
.uploader .bar label.alt{flex:0 1 auto;background:transparent;color:var(--on-ink);border:1px solid rgba(157,177,196,.35);box-shadow:none;font-weight:600;font-size:.98rem}
.uploader .bar label.alt:hover{background:rgba(255,255,255,.06)}
.uploader .bar svg{width:26px;height:26px;flex:0 0 auto}
.uploader input[type=file]{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.uploader .sub{display:flex;flex-wrap:wrap;gap:6px 18px;padding:12px 10px 4px;color:var(--on-ink-muted);font-size:.84rem}
.uploader .sub span::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent-hi);margin-right:7px;vertical-align:2px}
.uploader.drag{border-color:var(--accent-hi);background:rgba(63,211,230,.08)}

.hero-figure{position:relative;justify-self:center;width:100%;max-width:440px}
.hero-figure svg{width:100%;height:auto;display:block}
.callout{position:absolute;background:rgba(10,27,46,.88);border:1px solid rgba(63,211,230,.32);border-radius:12px;padding:9px 12px;font-size:.8rem;line-height:1.35;backdrop-filter:blur(6px);box-shadow:0 10px 30px rgba(0,0,0,.35);max-width:200px}
.callout b{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--accent-hi);font-weight:500;margin-bottom:2px}
.callout .v{font-family:var(--mono);font-variant-numeric:tabular-nums}
.callout .w{color:#f0b65c}
@media (max-width:520px){.callout{font-size:.72rem;max-width:150px;padding:7px 9px}}

/* ---------- sections ---------- */
section.block{padding-block:96px}
@media (max-width:700px){section.block{padding-block:64px}}
.block .head{display:grid;gap:14px;margin-bottom:48px;max-width:760px}
.block .head .coord{color:var(--accent-text)}
.alt-bg{background:var(--surface)}
.ink-bg{background:var(--ink);color:var(--on-ink)}
.ink-bg .lead{color:var(--on-ink-muted)}
.ink-bg .head .coord{color:var(--accent-hi)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:s}
@media (max-width:980px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:grid;gap:12px;align-content:start}
.step .num{font-family:var(--mono);font-size:.75rem;color:var(--accent-text);letter-spacing:.12em}
.step .vis{height:120px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center;overflow:hidden}
.step .vis svg{width:100%;height:100%}
.step p{color:var(--muted);font-size:.95rem}

/* uses */
.uses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:760px){.uses{grid-template-columns:1fr}}
.use{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--surface);display:grid;gap:12px}
.use .coord{color:var(--muted)}
.use ul{margin:0;padding-left:20px;color:var(--muted);display:grid;gap:4px}

/* atlas interactive */
.atlas{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:center}
@media (max-width:860px){.atlas{grid-template-columns:1fr}}
.atlas-fig{max-width:380px;justify-self:center;width:100%}
.atlas-fig .zn{cursor:pointer}
.atlas-fig .zn circle.ring{fill:none;stroke:var(--accent-hi);stroke-width:1;opacity:.5}
.atlas-fig .zn circle.dot{fill:var(--accent-hi)}
.atlas-fig .zn.on circle.dot{fill:#f0b65c}
.atlas-fig .zn.on circle.ring{stroke:#f0b65c;opacity:1}
.zone-panel{border:1px solid var(--ink-line);border-radius:var(--radius);padding:26px;background:var(--ink-2);display:grid;gap:14px;min-height:280px}
.zone-panel .coord{color:var(--accent-hi)}
.zone-panel dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0;font-size:.95rem}
.zone-panel dt{color:var(--on-ink-muted)}
.zone-panel dd{margin:0}
.zchips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.zchips button{background:transparent;border:1px solid var(--ink-line);color:var(--on-ink-muted);border-radius:999px;padding:6px 12px;font:500 .85rem var(--body);cursor:pointer}
.zchips button[aria-pressed="true"]{border-color:var(--accent-hi);color:var(--on-ink);background:rgba(63,211,230,.1)}

/* trust */
.trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:900px){.trust{grid-template-columns:1fr}}
.tcard{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--surface);display:grid;gap:12px;align-content:start}
.tcard .ico{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent)}
.tcard .ico svg{width:22px;height:22px}
.tcard ul{margin:0;padding-left:18px;color:var(--muted);font-size:.95rem;display:grid;gap:4px}
.notdo{margin-top:28px;border:1px solid var(--line);border-left:4px solid var(--signal);border-radius:12px;padding:20px 22px;background:var(--surface);display:grid;gap:8px}

/* roadmap certificazione */
.road{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:8px;position:relative}
@media (max-width:860px){.road{grid-template-columns:1fr 1fr;gap:16px}}
@media (max-width:520px){.road{grid-template-columns:1fr}}
.road li{list-style:none;padding:22px 18px 0 0;border-top:2px solid var(--ink-line);position:relative;display:grid;gap:8px;align-content:start}
.road li::before{content:"";position:absolute;top:-8px;left:0;width:14px;height:14px;border-radius:50%;background:var(--ink);border:2px solid var(--ink-line)}
.road li.now{border-top-color:var(--accent-hi)}
.road li.now::before{background:var(--accent-hi);border-color:var(--accent-hi);box-shadow:0 0 0 6px rgba(63,211,230,.18)}
.road li p{color:var(--on-ink-muted);font-size:.92rem}
.road{padding:0;margin:0}

/* devices */
.devs{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.dev{border:1px solid var(--line);border-radius:14px;padding:18px;background:var(--surface);display:grid;gap:6px}
.dev .st{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--accent-text)}
.dev p{color:var(--muted);font-size:.9rem}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
@media (max-width:900px){.plans{grid-template-columns:1fr}}
.plan{border:1px solid var(--line);border-radius:20px;padding:28px;background:var(--surface);display:grid;gap:16px;align-content:start}
.plan.star{border:1.5px solid var(--accent);box-shadow:var(--shadow);position:relative}
.plan.star::after{content:"Il più scelto da chi assiste un genitore";position:absolute;top:-12px;left:24px;background:var(--accent);color:#fff;font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:999px}
.plan .price{font-family:var(--display);font-size:2.2rem;font-weight:700;letter-spacing:-.02em}
.plan .price small{font-size:.95rem;color:var(--muted);font-weight:500;letter-spacing:0}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-size:.95rem}
.plan li{display:flex;gap:10px}.plan li::before{content:"";flex:0 0 auto;width:16px;height:16px;margin-top:4px;border-radius:50%;background:var(--accent-soft);box-shadow:inset 0 0 0 4px var(--accent)}

/* faq */
.faq{display:grid;gap:10px;max-width:860px}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:0 22px}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:600;font-size:1.03rem;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--accent-text);font-size:1.2rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 18px;color:var(--muted)}

/* cta band */
.band{background:var(--ink);color:var(--on-ink);border-radius:24px;padding:48px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;position:relative;overflow:hidden}
@media (max-width:760px){.band{grid-template-columns:1fr;padding:32px 24px}}
.band p{color:var(--on-ink-muted)}

/* article pages */
.page-hero{background:var(--ink);color:var(--on-ink);padding-block:64px 56px}
.page-hero .coord{color:var(--accent-hi)}
.page-hero h1{font-size:clamp(2rem,4.6vw,3.2rem);margin:12px 0 14px}
.page-hero .lead{color:var(--on-ink-muted)}
.prose{max-width:760px;padding-block:56px 80px}
.prose h2{font-size:1.6rem;margin:44px 0 14px}
.prose h3{margin:28px 0 8px}
.prose p,.prose li{color:var(--fg);font-size:1.04rem}
.prose p+p{margin-top:14px}
.prose ul,.prose ol{padding-left:22px;display:grid;gap:6px}
.prose table{width:100%;border-collapse:collapse;font-size:.95rem;margin:16px 0}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.prose th{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500}
.tscroll{overflow-x:auto}
.crumbs{font-size:.85rem;color:var(--on-ink-muted);margin-bottom:10px}
.crumbs a{color:var(--on-ink-muted)}
.updated{font-size:.85rem;color:var(--muted);margin-top:28px;border-top:1px solid var(--line);padding-top:14px}

/* footer */
footer.site{background:var(--ink);color:var(--on-ink-muted);padding-block:56px calc(40px + env(safe-area-inset-bottom,0px));font-size:.9rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
@media (max-width:760px){footer.site .cols{grid-template-columns:1fr 1fr}}
footer.site h4{color:var(--on-ink);font:600 .85rem var(--body);margin:0 0 10px;letter-spacing:.04em}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer.site a{text-decoration:none}footer.site a:hover{color:var(--on-ink)}
footer.site .legal{margin-top:36px;padding-top:18px;border-top:1px solid var(--ink-line);display:grid;gap:6px;font-size:.8rem}

/* mobile sticky upload */
.sticky-up{display:none}
@media (max-width:760px){
  .sticky-up{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px max(14px,env(safe-area-inset-right,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(14px,env(safe-area-inset-left,0px));background:linear-gradient(180deg,rgba(10,27,46,0),rgba(10,27,46,.92) 35%)}
  .sticky-up label{flex:1;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--accent-hi);color:var(--ink);font-weight:700;border-radius:14px;padding:15px;box-shadow:0 10px 30px rgba(0,0,0,.35)}
  .sticky-up svg{width:22px;height:22px}
  .sticky-up.hide{display:none}
  footer.site{padding-bottom:calc(110px + env(safe-area-inset-bottom,0px))}
}
.reveal{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease}
.js .reveal.pre{transform:translateY(14px)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}.js .reveal.pre{opacity:1;transform:none}}