/* Astra K · foglio unico degli articoli del blog (astrak.it/blog/articolo.css)
   Mobile first: le regole base sono per il telefono, i @media (min-width) aggiungono il resto.
   Token presi da astrak.it (global.css): Inter, testo #111, grigio #666, bordi #eaeaea, accento #2b5fd9.
   --navy/--amber restano per gli articoli già pubblicati: --navy = testo, --amber = accento.
   Componenti riscritti da 21st.dev: Animated Beam https://21st.dev/@dillionverma/components/animated-beam
   Border Beam https://21st.dev/@dillionverma/components/border-beam · Scroll Progress https://21st.dev/@ibelick/components/scroll-progress */
:root{
  --ink:#111; --ink-2:#444; --ink-3:#5f6b7a;
  --paper:#fff; --soft:#f6f7f9; --line:#eaeaea; --dark:#0a0a0a;
  --accent:#2b5fd9; --accent-wash:#e8eefc; --accent-2:#7ea2ff; --bar:#111;
  --navy:var(--ink); --amber:var(--accent); --amber-wash:var(--accent-wash);
  --green:#1e7b5f; --green-wash:#e3f3ec; --red:#b8372d; --red-wash:#fbe7e5; --warn:#a2751a; --warn-wash:#fbf0d6;
  --blue:var(--accent); --blue-wash:var(--accent-wash); --post:#fff1a8; --post-ink:#4a3b00;
  --sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif:var(--sans); --display:var(--sans);
  --mono:"JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease:cubic-bezier(.16,1,.3,1);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --ink:#f2f4f8; --ink-2:#c9ced8; --ink-3:#9aa4b2;
    --paper:#0f1216; --soft:#171c23; --line:#2a313b;
    --accent:#7ea2ff; --accent-wash:#1a2540; --accent-2:#2b5fd9; --bar:#3a4352;
    --green:#6cc7a7; --green-wash:#15302a; --red:#ee8a80; --red-wash:#3a1f1d; --warn:#e0ac4c; --warn-wash:#3a3016;
    --post:#4a3f12; --post-ink:#fff0b3;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ink:#f2f4f8; --ink-2:#c9ced8; --ink-3:#9aa4b2;
  --paper:#0f1216; --soft:#171c23; --line:#2a313b;
  --accent:#7ea2ff; --accent-wash:#1a2540; --accent-2:#2b5fd9; --bar:#3a4352;
  --green:#6cc7a7; --green-wash:#15302a; --red:#ee8a80; --red-wash:#3a1f1d; --warn:#e0ac4c; --warn-wash:#3a3016;
  --post:#4a3f12; --post-ink:#fff0b3;
}

/* ===== base: telefono ===== */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:72px}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;padding-inline:16px;margin:0;-webkit-font-smoothing:antialiased;overflow-x:hidden}
article{max-width:720px;margin:0 auto;padding-block:24px 64px}
img,svg,video,canvas,iframe{max-width:100%}
article img{height:auto}
pre,code{overflow-wrap:anywhere}
.wide{width:100%}
h1,h2,h3{font-family:var(--sans);color:var(--ink);text-wrap:balance}
h1{font-size:clamp(32px,8.5vw,54px);line-height:1.08;letter-spacing:-.035em;font-weight:600;margin:8px 0 14px}
h1 span{color:var(--accent)}
h2{font-size:clamp(24px,6vw,34px);line-height:1.18;letter-spacing:-.025em;font-weight:600;margin:48px 0 12px}
h3{font-size:18px;font-weight:600;margin:24px 0 6px}
p{margin:0 0 16px}
a{color:var(--accent)}
.kicker{font-weight:600;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.dek{font-size:19px;color:var(--ink-2);line-height:1.5;margin-bottom:20px}
.byline{font-size:13.5px;color:var(--ink-3);display:flex;gap:6px 10px;flex-wrap:wrap;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-block:12px;margin-bottom:28px}
.byline b{color:var(--ink);font-weight:600}

/* passi del metodo */
.step{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-top:56px}
.step i{font-style:normal;display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--ink);color:var(--paper);font-size:14px;letter-spacing:0}
.step + h2{margin-top:6px}
dfn{font-style:normal;font-weight:600;background:linear-gradient(transparent 60%, var(--accent-wash) 60%)}
.def{font-size:15.5px;border-left:3px solid var(--accent);background:var(--soft);padding:14px 16px;border-radius:0 12px 12px 0;margin:0 0 18px}
.def b{color:var(--ink);font-weight:600}
.tomorrow,.mistake{font-size:15.5px;border-radius:14px;padding:14px 16px;margin:14px 0 8px}
.tomorrow{background:var(--green-wash)} .mistake{background:var(--red-wash)}
.tomorrow strong,.mistake strong{display:block;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px}
.tomorrow strong{color:var(--green)} .mistake strong{color:var(--red)}

/* numeri chiave */
.big{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:24px 0}
.big div{background:var(--paper);padding:14px}
.big b{display:block;font-size:30px;line-height:1.05;color:var(--ink);font-weight:600;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.big b.t{color:var(--accent)}
.big span{font-size:13.5px;color:var(--ink-3);line-height:1.45;display:block;margin-top:4px}

/* glossario */
.gloss{border:1px solid var(--line);border-radius:14px;padding:4px 16px;margin:20px 0}
.gloss div{display:grid;gap:2px;padding:10px 0;border-bottom:1px solid var(--line);font-size:15px;line-height:1.55}
.gloss div:last-child{border-bottom:0}
.gloss b{color:var(--accent);font-weight:600}

/* citazioni */
.cit{position:relative;padding:2px 0 2px 18px;margin:22px 0 24px}
.cit::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:3px;background:var(--ink);transform-origin:top}
.cit.her::before{background:var(--accent)}
.cit p{font-size:19px;line-height:1.45;letter-spacing:-.01em;font-weight:500;margin:0 0 8px;color:var(--ink)}
.cit cite{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.cit.her cite{color:var(--accent)}

/* regole con icona */
.rules{display:grid;gap:10px;margin:22px 0}
.rules div{border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-size:15px;line-height:1.55;background:var(--paper);display:grid;grid-template-columns:36px 1fr;gap:4px 12px}
.rules svg{width:32px;height:32px;grid-row:span 2}
.rules b{font-size:17px;font-weight:600;letter-spacing:-.01em}
.ico{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* figure */
figure{margin:28px 0}
figure figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;line-height:1.5}
figure .tag{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;display:block}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px}
.panel-t{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px}

/* grafici SVG degli articoli più vecchi: sul telefono scorrono dentro il box invece di rimpicciolirsi */
.svgbox,.chartbox{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:14px;overflow-x:auto}
.svgbox svg,.chartbox svg{display:block;width:100%;height:auto;min-width:600px}
.st{fill:var(--ink);font:600 15px var(--sans)} .ss{fill:var(--ink-3);font:500 13px var(--sans)}
.sm,.sa{fill:var(--ink-3);font:600 12px var(--sans);letter-spacing:.08em} .sa{fill:var(--accent)}
.sn{fill:var(--ink);font:600 20px var(--sans);letter-spacing:-.02em} .sn-w{fill:#fff;font:600 17px var(--sans)} .sl-w{fill:#fff;font:600 13px var(--sans)}
.b-bg,.bar-bg,.lane{fill:var(--soft)} .b-ink,.bar,.d-n{fill:var(--bar)} .b-acc,.bar-hi,.d-a{fill:#2b5fd9}
.b-good,.d-g{fill:var(--green)} .b-stop,.d-r{fill:var(--red)} .b-warn{fill:var(--warn)} .b-mute{fill:#8a94a3}
.ln,.tick{stroke:var(--ink-3);stroke-width:1.5;fill:none} .ln-d{stroke:var(--line);stroke-width:1.5;fill:none;stroke-dasharray:4 4}
.ln-a{stroke:var(--accent);stroke-width:2.5;fill:none}
.node{fill:var(--paper);stroke:var(--line);stroke-width:1.5} .node-x{fill:var(--red-wash);stroke:var(--red);stroke-width:1.5;stroke-dasharray:5 4}

/* ===== grafici in HTML: leggibili su ogni schermo ===== */

/* piano a barre per mese */
.plan{display:grid;gap:14px}
.plan-head{display:none}
.plan-track{display:flex;flex-wrap:wrap;gap:6px}
.plan-head span{font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--ink-3);text-align:center;border-bottom:1px dashed var(--line);padding-bottom:4px}
.plan-row{display:grid;gap:6px}
.plan-row > b{font-size:14px;font-weight:600}
.plan-track i{font-style:normal;font-size:11.5px;line-height:1.25;font-weight:600;color:#fff;background:var(--bar);border-radius:8px;padding:7px 8px;min-height:34px;display:flex;align-items:center}
.plan-track i.a{background:#2b5fd9} .plan-track i.a2{background:#5b82e6} .plan-track i.g{background:var(--green)}
.plan-track i.s{background:var(--soft);color:var(--ink-2);border:1px dashed var(--ink-3)}
.plan-track i::before{content:attr(data-m);font-size:10.5px;font-weight:700;letter-spacing:.04em;opacity:.75;margin-right:7px}

/* sistemi collegati con fasci luminosi (Animated Beam di 21st.dev, riscritto senza React) */
.oggi{display:grid;grid-template-columns:1fr 40px 1fr;align-items:center;gap:8px}
.sys{border:1px solid var(--line);border-radius:14px;padding:12px 10px;text-align:center;background:var(--paper);font-size:13.5px;line-height:1.35;position:relative;z-index:1}
.sys b{display:block;font-size:14.5px;font-weight:600}
.sys small{color:var(--ink-3);font-size:12px}
.sys.hub{border-color:var(--accent);box-shadow:0 0 0 5px var(--accent-wash);padding:16px 10px}
.sys.hub b{font-size:15.5px}
.cut{height:28px;border:1.5px dashed var(--red);border-radius:6px;background:var(--red-wash);display:grid;place-items:center;color:var(--red);font-weight:700;font-size:14px}
.note{font-size:13.5px;color:var(--ink-3);margin:10px 0 22px}
.hubwrap{position:relative;display:grid;grid-template-columns:1fr 1.1fr 1fr;grid-template-rows:auto auto;gap:22px 8%;align-items:center}
.hubwrap .hub{grid-column:2;grid-row:1/3}
.hubwrap .l1{grid-column:1;grid-row:1} .hubwrap .l2{grid-column:1;grid-row:2}
.hubwrap .r1{grid-column:3;grid-row:1} .hubwrap .r2{grid-column:3;grid-row:2}
.beams{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.beams .base{stroke:var(--ink-3);stroke-opacity:.3;stroke-width:2;fill:none}
.beams .glow{opacity:0;stroke:#2b5fd9;stroke-width:3;fill:none;stroke-linecap:round;stroke-dasharray:0 100;filter:drop-shadow(0 0 3px rgba(43,95,217,.7))}
.js-anim .anim.in .beams .glow{opacity:1;animation:beam 3.2s var(--ease) infinite}
.js-anim .anim.in .beams .glow.rev{animation-name:beam-rev}
.beams .glow.d{animation-delay:1.1s!important}
@keyframes beam{0%{stroke-dasharray:0 100;stroke-dashoffset:0}40%{stroke-dasharray:28 100}100%{stroke-dasharray:28 100;stroke-dashoffset:-100}}
@keyframes beam-rev{0%{stroke-dasharray:0 100;stroke-dashoffset:-100}40%{stroke-dasharray:28 100}100%{stroke-dasharray:28 100;stroke-dashoffset:28}}

/* barre orizzontali con numeri */
.hbars{display:grid;gap:12px}
.hb{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center}
.hb-l{font-size:13.5px;color:var(--ink-2);grid-column:1/-1}
.hb-b{height:28px;background:var(--soft);border-radius:8px;overflow:hidden}
.hb-b i{display:block;height:100%;width:max(var(--w),5px);background:var(--bar);border-radius:8px}
.hb-b i.a{background:#2b5fd9} .hb-b i.a2{background:#5b82e6} .hb-b i.g{background:var(--green)}
.hb > b{font-size:19px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums;min-width:56px;text-align:right}

/* sequenza nel tempo: verticale sul telefono, orizzontale dal tablet */
.seq{list-style:none;margin:0;padding:0 0 0 30px;display:grid;gap:18px;position:relative}
.seq::before,.seq::after{content:"";position:absolute;left:10px;top:12px;bottom:12px;width:2px;background:var(--line)}
.seq::after{background:#2b5fd9;transform-origin:top}
.seq li{position:relative;display:grid;gap:2px;align-content:start}
.seq li::before{content:"";position:absolute;left:-27px;top:3px;width:16px;height:16px;border-radius:50%;background:#2b5fd9;box-shadow:0 0 0 4px var(--paper);z-index:1}
.seq li.fine::before{background:var(--green)}
.seq small{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.seq b{font-size:16px;font-weight:600}
.seq span{font-size:14px;color:var(--ink-3)}
.envelope{position:absolute;left:4px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid #2b5fd9;z-index:2;opacity:0}
.flowbar{margin-top:16px;background:var(--dark);color:#fff;border-radius:12px;padding:12px 14px;font-size:14px;font-weight:500;line-height:1.5}

/* gradini */
.stairs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-items:end;padding-top:56px;border-bottom:1.5px solid var(--ink-3);position:relative}
.stair{display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:6px}
.stair b{font-size:24px;font-weight:600;letter-spacing:-.02em}
.stair i{display:block;width:100%;height:calc(var(--h) * 1.5px);min-height:6px;border-radius:10px 10px 0 0;background:var(--bar)}
.stair.z i{background:#8a94a3} .stair.a i{background:#2b5fd9}
.stair-l{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:center;font-size:13.5px;font-weight:600;margin-top:8px}
.budget{position:absolute;font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-wash);border-radius:999px;padding:3px 8px;white-space:nowrap;transform:translateX(-50%)}

/* legenda */
.legend2{display:grid;gap:10px;margin-top:14px}
.legend2 div{display:grid;grid-template-columns:20px 1fr;gap:0 10px;font-size:13.5px;color:var(--ink-3);line-height:1.4}
.legend2 i{width:16px;height:16px;border-radius:50%;grid-row:span 2;margin-top:2px}
.legend2 b{color:var(--ink);font-size:14.5px;font-weight:600}

/* finte schermate */
.app{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--paper);box-shadow:0 14px 40px rgba(10,20,40,.08);font-size:14px}
.app-top{background:var(--dark);color:#fff;padding:11px 14px;font-size:13.5px;font-weight:600;display:flex;justify-content:space-between;gap:4px 10px;flex-wrap:wrap}
.app-top span{font-weight:400;opacity:.7}
.app-body{display:grid;min-height:240px}
.app-side{display:none;background:var(--soft);border-right:1px solid var(--line);padding:12px;gap:4px;align-content:start;font-size:13.5px}
.app-side div{padding:6px 10px;border-radius:8px;color:var(--ink-2)}
.app-side .on{background:var(--accent-wash);color:var(--ink);font-weight:600}
.app-main{padding:14px;display:grid;gap:14px;align-content:start;min-width:0}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--soft);border:1px solid var(--line);color:var(--ink-2)}
.chip.a,.chip.t,.chip.b{background:var(--accent-wash);border-color:transparent;color:var(--accent)}
.chip.g{background:var(--green-wash);border-color:transparent;color:var(--green)}
.chip.r{background:var(--red-wash);border-color:transparent;color:var(--red)}
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;max-width:100%;font-size:13.5px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top;white-space:nowrap}
th{font-size:11.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:var(--soft)}
tr:last-child td{border-bottom:0}
td.n{text-align:right;font-variant-numeric:tabular-nums} td.c{text-align:center}
.vs td{white-space:normal;min-width:130px}

/* checklist e chiusura */
.checklist{border:1px solid var(--ink);border-radius:14px;padding:18px;margin:28px 0;background:var(--paper)}
.checklist h3{margin-top:0;font-size:21px;letter-spacing:-.02em}
.checklist ol{margin:0;padding-left:20px;display:grid;gap:8px;font-size:15.5px}
.end{border-top:1px solid var(--line);margin-top:44px;padding-top:18px;font-size:15.5px;color:var(--ink-2)}
.ps{font-size:16px;margin-top:10px}

/* CTA con un raggio che gira sul bordo (Border Beam di 21st.dev) */
.cta-beam{position:relative;overflow:hidden;background:var(--dark);color:#fff;border:1px solid #262b35;border-radius:18px;padding:22px 20px;margin:30px 0;display:grid;gap:10px}
.cta-beam .bb{position:absolute;inset:-1px;border-radius:inherit;padding:1.5px;pointer-events:none;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0)}
@supports (offset-path:rect(0 auto auto 0)){
  .cta-beam .bb::after{content:"";position:absolute;width:180px;aspect-ratio:1;background:linear-gradient(to left,#9db8ff,#2b5fd9,transparent);
    offset-path:rect(0 auto auto 0 round 180px);offset-anchor:90% 50%;animation:border-beam 8s linear infinite}
}
@keyframes border-beam{to{offset-distance:100%}}
.cta-beam > :not(.bb){position:relative}
.cta-beam small{font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#9db8ff}
.cta-beam b{font-size:22px;line-height:1.25;font-weight:600;letter-spacing:-.02em}
.cta-beam span{color:#c9ced8;font-size:15px;line-height:1.55}
.cta-beam ul{margin:2px 0 4px;padding:0;list-style:none;display:grid;gap:6px;font-size:14.5px;color:#e6e9ef}
.cta-beam li{padding-left:22px;position:relative}
.cta-beam li::before{content:"✓";color:#9db8ff;font-weight:700;position:absolute;left:0}
.cta-beam a{justify-self:stretch;justify-content:center;background:#2b5fd9;color:#fff;text-decoration:none;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15.5px;min-height:48px;display:inline-flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(43,95,217,.45)}
.cta-beam a:hover{background:#3a6be6}

/* barra di avanzamento del metodo (Scroll Progress di 21st.dev): compare quando si entra nei passi */
.rail{position:fixed;left:0;right:0;top:0;z-index:50;background:var(--paper);background:color-mix(in srgb,var(--paper) 92%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  padding:8px 16px 10px;transform:translateY(-110%);transition:transform .35s var(--ease)}
.rail.on{transform:none}
.rail-in{max-width:720px;margin:0 auto;display:grid;gap:7px}
.rail-t{font-size:12.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail-t em{font-style:normal;color:var(--accent);margin-right:6px}
.rail-s{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px}
.rail-s a{display:block;height:4px;border-radius:4px;background:var(--line);position:relative;overflow:hidden}
.rail-s a::after{content:"";position:absolute;inset:0;background:#2b5fd9;transform:scaleX(var(--p,0));transform-origin:left;transition:transform .2s linear}

/* ===== intestazione e piede del blog ===== */
header.site{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:12px;padding-block:8px;font-size:15px;border-bottom:1px solid var(--line)}
header.site a{color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
header.site .brand{font-weight:700;letter-spacing:-.02em;font-size:18px}
header.site nav{display:flex;gap:14px;align-items:center}
header.site .cta{background:var(--accent);color:#fff;padding:0 16px;border-radius:999px;font-weight:500}
.crumbs{font-size:13px;color:var(--ink-3);margin-bottom:2px}
.crumbs a{color:var(--ink-3);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
.teaser{display:grid;gap:6px;background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:0 0 24px;font-size:14.5px}
.teaser a{color:var(--accent);font-weight:600;text-decoration:none;min-height:32px;display:inline-flex;align-items:center}
.box-cta{background:var(--dark);color:#fff;border-radius:14px;padding:22px 20px;margin-top:36px;display:grid;gap:10px}
.box-cta b{font-size:20px;font-weight:600;letter-spacing:-.02em}
.box-cta span{color:#c9ced8}
.box-cta a{justify-self:start;background:#2b5fd9;color:#fff;text-decoration:none;padding:12px 20px;border-radius:999px;font-weight:500;min-height:44px;display:inline-flex;align-items:center}
footer.site-foot{max-width:1000px;margin:0 auto;border-top:1px solid var(--line);padding-block:24px 40px;font-size:14px;color:var(--ink-3);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer.site-foot a{color:var(--ink-3)}

/* risorse scaricabili e modulo */
.risorse{margin-top:40px;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--paper);box-shadow:0 18px 50px rgba(10,20,40,.08)}
.r-head{background:var(--dark);color:#fff;padding:22px 18px;display:grid;gap:8px}
.r-head .kick{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#9db8ff}
.r-head h2{margin:0;color:#fff;font-size:clamp(22px,6vw,28px);line-height:1.2}
.r-head p{margin:0;color:#c9ced8;font-size:15px}
.prev{display:grid;gap:10px;margin-top:10px}
.prev figure{margin:0;border-radius:12px;overflow:hidden;background:#1a1d24;border:1px solid #262b35}
.prev img{display:block;width:100%;height:170px;object-fit:cover;object-position:top;background:#fff}
.prev .xls{height:170px;display:grid;place-items:center;background:#fff;padding:8px}
.prev .xls table{font-size:9.5px;border-collapse:collapse;color:#111}
.prev .xls td{border:1px solid #dfe6ee;padding:3px 4px;white-space:nowrap}
.prev figcaption{font-size:12.5px;padding:8px 10px;color:#c9ced8;margin:0}
.prev figcaption b{color:#fff}
form.lead{padding:20px 18px;display:grid;gap:20px;counter-reset:q}
.q{display:grid;gap:8px;border:0;padding:0;margin:0;min-width:0}
.q > .ql{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;font-size:15px;font-weight:600;color:var(--ink)}
.q > .ql::before{counter-increment:q;content:counter(q);flex:none;display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-size:12.5px;font-weight:700;transform:translateY(-2px)}
.q .hint{font-size:12.5px;color:var(--ink-3);font-weight:500;margin-left:auto}
.field{font:inherit;font-size:16px;width:100%;border:1.5px solid var(--line);border-radius:12px;padding:13px 14px;background:var(--soft);color:var(--ink);transition:border-color .15s,background .15s,box-shadow .15s}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--accent);background:var(--paper);box-shadow:0 0 0 4px rgba(43,95,217,.15)}
textarea.field{min-height:110px;resize:vertical;line-height:1.5}
.two{display:grid;gap:20px}
.chip-opt{position:relative}
.chip-opt input{position:absolute;opacity:0;width:1px;height:1px}
.chip-opt span{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--line);background:var(--paper);border-radius:999px;padding:10px 16px;min-height:44px;font-weight:600;font-size:14.5px;cursor:pointer;transition:all .15s;user-select:none}
.chip-opt span:hover{border-color:var(--accent)}
.chip-opt input:checked + span{background:var(--accent);border-color:var(--accent);color:#fff}
.chip-opt input:focus-visible + span{box-shadow:0 0 0 4px rgba(43,95,217,.25)}
.chip-opt.big span{padding:12px 20px}
.count{font-size:12.5px;color:var(--ink-3);text-align:right;margin-top:-2px}
.count.ok{color:var(--green)}
.priv{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.5}
.priv input{margin-top:3px;width:18px;height:18px;accent-color:var(--accent);flex:none}
.priv a{color:var(--ink-2)}
.hp{position:absolute;left:-9999px}
.send{display:grid;gap:10px}
form.lead button{font:inherit;font-size:16.5px;font-weight:600;background:var(--accent);color:#fff;border:0;border-radius:999px;padding:15px 28px;min-height:48px;cursor:pointer;box-shadow:0 8px 20px rgba(43,95,217,.3);transition:transform .15s;width:100%}
form.lead button:hover{transform:translateY(-1px)}
.send small{color:var(--ink-3);font-size:13px;text-align:center}
.err{border-color:var(--red)!important;background:var(--red-wash)!important}

/* articoli correlati */
.correlati{margin-top:44px;display:grid;gap:14px}
.correlati h2{margin:0;font-size:23px}
.cor-grid{display:grid;gap:14px}
.cor{display:grid;border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);background:var(--paper);transition:transform .25s,border-color .25s}
.cor:hover{border-color:var(--accent);transform:translateY(-4px)}
.cor img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.cor div{padding:14px 16px;display:grid;gap:6px}
.cor small{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.cor b{font-size:17px;line-height:1.3;font-weight:600}

/* domande frequenti */
.faq{display:grid;gap:8px;margin:16px 0 8px}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--paper);padding:0 16px}
.faq summary{cursor:pointer;list-style:none;font-weight:600;font-size:16.5px;padding:14px 28px 14px 0;position:relative;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-size:22px;font-weight:400;color:var(--accent)}
.faq details[open] summary::after{content:"–"}
.faq p{font-size:15.5px;color:var(--ink-2);margin:0 0 14px}

/* ===== animazioni =====
   articolo.js mette .js-anim su <html> e .in su figure e citazioni quando entrano nello schermo.
   Senza JS, con "riduci movimento" o nel render delle immagini resta lo stato finale. */
.js-anim .anim .grow,.js-anim .anim .plan-track i,.js-anim .anim .hb-b i{transform:scaleX(0);transform-origin:left center;transform-box:fill-box;transition:transform 1s var(--ease)}
.js-anim .anim .rise,.js-anim .anim .stair i{transform:scaleY(0);transform-origin:center bottom;transform-box:fill-box;transition:transform .9s var(--ease)}
.js-anim .anim .fade,.js-anim .anim .budget{opacity:0;translate:0 8px;transition:opacity .6s,translate .6s}
.js-anim .anim .pop,.js-anim .anim .seq li::before{scale:.3;opacity:0;transition:opacity .35s,scale .5s cubic-bezier(.34,1.56,.64,1)}
.js-anim .anim .seq li > *{opacity:0;transition:opacity .5s}
.js-anim .anim .seq::after{transform:scaleY(0);transition:transform 2.2s ease}
.js-anim .anim .draw{stroke-dasharray:1000;stroke-dashoffset:1000;transition:stroke-dashoffset 1.6s ease}
.js-anim .anim.in .grow,.js-anim .anim.in .rise,.js-anim .anim.in .plan-track i,.js-anim .anim.in .hb-b i,.js-anim .anim.in .stair i,.js-anim .anim.in .seq::after{transform:none}
.js-anim .anim.in .fade,.js-anim .anim.in .budget,.js-anim .anim.in .seq li > *{opacity:1;translate:none}
.js-anim .anim.in .pop,.js-anim .anim.in .seq li::before{scale:1;opacity:1}
.js-anim .anim.in .draw{stroke-dashoffset:0}
.js-anim .anim.in .envelope{animation:envelope-v 4.5s ease-in-out 2.4s infinite}
@keyframes envelope-v{0%{opacity:0;top:8px}10%{opacity:1}85%{opacity:1;top:calc(100% - 22px)}100%{opacity:0;top:calc(100% - 22px)}}
@keyframes envelope-h{0%{opacity:0;left:0}10%{opacity:1}85%{opacity:1;left:calc(100% - 16px)}100%{opacity:0;left:calc(100% - 16px)}}
.js-anim .cit::before{transform:scaleY(0);transition:transform .7s var(--ease)}
.js-anim .cit > *{opacity:0;translate:0 6px;transition:opacity .6s .15s,translate .6s .15s}
.js-anim .cit.in::before{transform:none}
.js-anim .cit.in > *{opacity:1;translate:none}
.js-anim .anim.in .pulse{animation:pulse 2.4s ease-in-out 2.6s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(43,95,217,0)}50%{box-shadow:0 0 0 6px rgba(43,95,217,.2)}}
.js-anim .march{stroke-dasharray:6 6;animation:march 1s linear infinite}
@keyframes march{to{stroke-dashoffset:-12}}
.d1{transition-delay:.15s!important}.d2{transition-delay:.3s!important}.d3{transition-delay:.45s!important}.d4{transition-delay:.6s!important}
.d5{transition-delay:.75s!important}.d6{transition-delay:.9s!important}.d7{transition-delay:1.05s!important}.d8{transition-delay:1.2s!important}
.d9{transition-delay:1.5s!important}.d10{transition-delay:1.8s!important}.d11{transition-delay:2.1s!important}.d12{transition-delay:2.4s!important}
.seq li:nth-child(1)::before,.seq li:nth-child(1) > *{transition-delay:.1s}
.seq li:nth-child(2)::before,.seq li:nth-child(2) > *{transition-delay:.7s}
.seq li:nth-child(3)::before,.seq li:nth-child(3) > *{transition-delay:1.3s}
.seq li:nth-child(4)::before,.seq li:nth-child(4) > *{transition-delay:1.9s}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}.rail{display:none}}

/* ===== da 600px ===== */
@media (min-width:600px){
  body{font-size:18px;line-height:1.7;padding-inline:24px}
  .big{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
  .big div{padding:18px}
  .big b{font-size:36px}
  .gloss div{grid-template-columns:150px 1fr;gap:12px}
  .rules{grid-template-columns:1fr 1fr;gap:12px}
  .teaser{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
  .two{grid-template-columns:1fr 1fr}
  .prev{grid-template-columns:repeat(3,minmax(0,1fr))}
  .prev img,.prev .xls{height:140px}
  .send{display:flex;align-items:center;gap:14px}
  form.lead button{width:auto}
  .send small{text-align:left}
  .cor-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
  .plan-head,.plan-track{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:4px}
  .plan-track i{grid-column:var(--s)/var(--e);font-size:12.5px;padding:8px 10px}
  .plan-track i::before{display:none}
  .hb{grid-template-columns:200px 1fr auto}
  .hb-l{grid-column:auto}
  .legend2{grid-template-columns:1fr 1fr}
  .stairs{padding-top:60px}
  .stair i{height:calc(var(--h) * 2.2px)}
  .budget{font-size:11px}
  .oggi{grid-template-columns:1fr 60px 1fr}
  .sys{padding:14px}
  .cta-beam{padding:28px 30px}
  .cta-beam b{font-size:26px}
  .cta-beam a{justify-self:start}
  .r-head{padding:26px}
  form.lead{padding:26px}
}

/* ===== da 820px ===== */
@media (min-width:820px){
  article{padding-block:40px 80px}
  .dek{font-size:21px}
  .cit p{font-size:21px}
  .app-body{grid-template-columns:180px minmax(0,1fr)}
  .app-side{display:grid}
  .app-main,.panel{padding:20px}
  .seq{padding:0;grid-template-columns:repeat(4,1fr);gap:16px}
  .seq::before,.seq::after{left:8px;right:8px;top:7px;bottom:auto;width:auto;height:2px}
  .seq::after{transform-origin:left}
  .js-anim .anim .seq::after{transform:scaleX(0)}
  .seq li{padding-top:30px}
  .seq li::before{left:0;top:0}
  .envelope{top:1px;left:0}
  .js-anim .anim.in .envelope{animation-name:envelope-h}
  .dots-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:24px;align-items:center}
  .dots-wrap .legend2{margin-top:0;grid-template-columns:1fr}
  .hubwrap{gap:26px 12%}
  .sys.hub{padding:22px 14px}
}

/* ===== da 1040px: le figure larghe escono dalla colonna ===== */
@media (min-width:1040px){
  .wide{width:min(1000px, calc(100vw - 48px));margin-left:50%;transform:translateX(-50%)}
  .plan-row{grid-template-columns:180px 1fr;align-items:center;gap:12px}
  .plan-head{margin-left:192px}
}