/* =========================================================================
   KiStation® AION™ — preview site · design system
   Dependency-free. System fonts. Nessuna risorsa esterna / tracker.
   Palette: premium tecnico, italiano, sobrio, ad alta fiducia.
   ========================================================================= */
:root{
  /* base */
  --bg:#07110D; --bg-2:#0B1712; --bg-3:#0e2018;
  --surface:#0e1f18; --surface-2:#12271d; --surface-hi:#163024;
  --text:#F5F8F6; --text-dim:#cdd9d2; --muted:#8EA39A; --faint:#6f8379;
  /* green sovranità */
  --green:#22C55E; --green-d:#18A058; --green-dd:#0f7a40; --green-soft:#DDF7E8;
  --amber:#e3b341;
  /* lines */
  --border:rgba(255,255,255,0.10); --border-2:rgba(255,255,255,0.06);
  --border-green:rgba(34,197,94,0.35);
  /* light section */
  --paper:#F5F8F6; --paper-ink:#0c1a13; --paper-muted:#46594f; --paper-line:#dce7e0;
  /* fx */
  --grad:linear-gradient(135deg,var(--green),#34d36b 60%,#86e6a3);
  --glow:0 0 0 1px var(--border), 0 18px 40px -24px rgba(0,0,0,.8);
  --r:16px; --r-sm:10px; --r-lg:22px; --r-pill:999px;
  --container:1180px; --pad:22px; --header-h:64px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Apple Color Emoji",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block;height:auto}
a{color:var(--green);text-decoration:none}
a:hover{color:#3fe178}
h1,h2,h3,h4{margin:0;line-height:1.12;letter-spacing:-.02em;color:var(--text);font-weight:800}
h1{font-size:clamp(2rem,4.6vw,3.5rem)}
h2{font-size:clamp(1.55rem,3.2vw,2.4rem)}
h3{font-size:clamp(1.15rem,2vw,1.4rem)}
p{margin:0 0 .85rem}
.reg{font-size:.62em;vertical-align:.34em;font-weight:700;color:var(--muted)}
.mono{font-family:var(--mono);font-size:.9em}
::selection{background:rgba(34,197,94,.28);color:#fff}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip-link{position:absolute;left:-999px;top:8px;z-index:200;background:var(--green);color:#04130a;
  padding:8px 14px;border-radius:8px;font-weight:700}
.skip-link:focus{left:12px}

/* ---------- layout ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--pad)}
.section{padding:clamp(48px,7vw,96px) 0}
.section--tight{padding:clamp(34px,4.5vw,60px) 0}
.section--alt{background:var(--bg-2)}
.section--paper{background:var(--paper);color:var(--paper-ink)}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper h4{color:var(--paper-ink)}
.section--paper .muted{color:var(--paper-muted)}
.eyebrow{display:inline-block;font-size:.74rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--green);margin-bottom:.7rem}
.section--paper .eyebrow{color:var(--green-d)}
.section-head{max-width:62ch}
.section-head .sub{color:var(--muted);font-size:1.08rem;margin-top:.5rem}
.section--paper .section-head .sub{color:var(--paper-muted)}
.muted{color:var(--muted)}
.lead{font-size:1.16rem;color:var(--text-dim);max-width:64ch}
.center{text-align:center}.mx-auto{margin-inline:auto}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.stack-sm>*+*{margin-top:.5rem}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(7,17,13,.82);
  backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--text)}
.brand .bn{font-size:1.04rem}
.brand .bn b{color:var(--green)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{color:var(--text-dim);font-size:.92rem;font-weight:600;padding:8px 11px;border-radius:8px;white-space:nowrap}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link[aria-current="page"]{color:var(--green)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;margin-left:auto;background:var(--surface);border:1px solid var(--border);
  color:var(--text);width:42px;height:42px;border-radius:10px;font-size:1.2rem;cursor:pointer}
@media (max-width:1024px){
  .nav-menu{position:fixed;inset:var(--header-h) 0 auto 0;flex-direction:column;align-items:stretch;
    gap:2px;padding:14px var(--pad) 20px;background:rgba(7,17,13,.98);border-bottom:1px solid var(--border);
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s}
  .nav-menu.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}
  .nav-link{padding:12px 10px;border-bottom:1px solid var(--border-2)}
  .nav-cta{margin:8px 0 0}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;justify-content:center;font-weight:700;
  font-size:.96rem;padding:.72rem 1.15rem;border-radius:12px;border:1px solid transparent;cursor:pointer;
  transition:transform .12s ease,background .18s ease,border-color .18s ease;white-space:nowrap;line-height:1}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--grad);color:#04130a}
.btn--primary:hover{color:#04130a;filter:brightness(1.05)}
.btn--ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn--ghost:hover{border-color:var(--border-green);color:var(--text);background:var(--surface)}
.btn--soft{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.btn--soft:hover{background:var(--surface-hi);color:var(--text)}
.btn--lg{padding:.88rem 1.5rem;font-size:1.02rem;border-radius:14px}
.section--paper .btn--ghost{border-color:var(--paper-line);color:var(--paper-ink)}
.section--paper .btn--ghost:hover{background:#eaf2ed}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- chips / badges ---------- */
.chip{display:inline-flex;align-items:center;gap:.4rem;padding:.32rem .8rem;border-radius:var(--r-pill);
  font-size:.82rem;font-weight:700;color:var(--text-dim);background:var(--surface);border:1px solid var(--border);
  white-space:normal;line-height:1.3}
.chip--g{color:var(--green-soft);background:rgba(34,197,94,.12);border-color:var(--border-green)}
.chip--road{border-style:dashed;border-color:rgba(227,179,65,.5);background:rgba(227,179,65,.08);color:#eccf8a}
.chip--demo{background:rgba(255,255,255,.06);color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem}
.chips{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:20px;
  break-inside:avoid}
.card--hi{background:var(--surface-2)}
.card--lined{border-left:3px solid var(--green)}
.card--link{transition:border-color .18s ease,transform .12s ease,background .18s ease}
.card--link:hover{border-color:var(--border-green);background:var(--surface-2);transform:translateY(-2px)}
.card .k{display:block;font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--green);margin-bottom:.45rem}
.card h3{margin-bottom:.3rem}
.card p{color:var(--text-dim);font-size:.96rem;margin:0}
.card .more{display:inline-block;margin-top:.8rem;font-weight:700;font-size:.9rem}
.section--paper .card{background:#fff;border-color:var(--paper-line);color:var(--paper-ink)}
.section--paper .card p{color:var(--paper-muted)}

ul.tick{list-style:none;margin:.4rem 0 0;padding:0}
ul.tick li{position:relative;padding-left:20px;margin-bottom:.34rem;color:var(--text-dim);font-size:.96rem}
ul.tick li::before{content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:2px;
  background:var(--green)}
.section--paper ul.tick li{color:var(--paper-ink)}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(54px,8vw,108px) 0 clamp(40px,6vw,76px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(70% 60% at 78% 8%,rgba(34,197,94,.16),transparent 60%),
             radial-gradient(50% 50% at 8% 100%,rgba(24,160,88,.10),transparent 60%)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(24px,4vw,52px);align-items:center}
.hero-copy{min-width:0;max-width:46ch}
.hero h1{margin-bottom:1rem}
.hero .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:1.18rem;color:var(--text-dim);margin-bottom:1.5rem;max-width:50ch}
.hero-claim{font-size:1.06rem;font-weight:700;color:var(--text);border-left:3px solid var(--green);
  padding-left:1rem;margin:1.3rem 0}
.hero-visual{min-width:0}
@media (max-width:920px){.hero-inner{grid-template-columns:1fr}.hero-visual{max-width:520px}}

/* mock workstation / server visual (CSS+SVG component) */
.kv{position:relative;border:1px solid var(--border);border-radius:var(--r-lg);background:
  linear-gradient(160deg,var(--surface-2),var(--bg-2));padding:18px;box-shadow:var(--glow)}
.kv-head{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--faint);flex:0 0 auto}
.dot--ok{background:var(--green);box-shadow:0 0 10px rgba(34,197,94,.6)}
.dot--warn{background:var(--amber)}
.kv-title{font-size:.82rem;color:var(--muted);font-weight:700;letter-spacing:.04em}
.kv-rack{display:grid;gap:8px}
.kv-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--bg);
  border:1px solid var(--border-2);border-radius:10px;padding:9px 12px;font-size:.86rem}
.kv-row .lbl{color:var(--text-dim);display:flex;align-items:center;gap:8px}
.kv-row .val{color:var(--green-soft);font-family:var(--mono);font-size:.82rem}
.bar{height:6px;border-radius:4px;background:var(--surface-hi);overflow:hidden;flex:1;min-width:60px}
.bar > i{display:block;height:100%;background:var(--grad);border-radius:4px}

/* ---------- proof strip ---------- */
.proof{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.proof .p{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;text-align:left}
.proof .p .v{font-weight:800;font-size:1.04rem;color:var(--green-soft);line-height:1.1}
.proof .p .l{font-size:.76rem;color:var(--muted);margin-top:2px}
@media (max-width:900px){.proof{grid-template-columns:repeat(3,1fr)}}
@media (max-width:520px){.proof{grid-template-columns:repeat(2,1fr)}}

/* ---------- product comparison table ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r)}
table.cmp{width:100%;border-collapse:collapse;min-width:640px;font-size:.92rem}
table.cmp th,table.cmp td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border-2);vertical-align:top}
table.cmp thead th{background:var(--surface-2);color:var(--text);font-weight:800;position:sticky;top:0}
table.cmp tbody th{color:var(--muted);font-weight:600}
table.cmp td{color:var(--text-dim)}
table.cmp .hi{color:var(--green-soft)}
table.cmp tr:last-child td,table.cmp tr:last-child th{border-bottom:0}

/* ---------- sovereignty flow diagram ---------- */
.flow{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap}
.flow-node{flex:1;min-width:150px;background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:14px;text-align:center}
.flow-node.is-core{border-color:var(--border-green);background:var(--surface-2)}
.flow-node .n{font-weight:800;color:var(--text)}
.flow-node .d{font-size:.82rem;color:var(--muted);margin-top:3px}
.flow-arrow{display:flex;align-items:center;color:var(--green);font-size:1.3rem;flex:0 0 auto}
@media (max-width:760px){.flow{flex-direction:column}.flow-arrow{transform:rotate(90deg);justify-content:center}}

/* ---------- stack module grid ---------- */
.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.module{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:18px}
.module .k{color:var(--green)}
@media (max-width:860px){.modules{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.modules{grid-template-columns:1fr}}

/* ---------- AION Control Center mock ---------- */
.acc{border:1px solid var(--border);border-radius:var(--r-lg);background:var(--bg-2);overflow:hidden}
.acc-bar{display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--surface-2);
  border-bottom:1px solid var(--border)}
.acc-bar .title{font-weight:800;font-size:.95rem}
.acc-bar .demo-tag{margin-left:auto;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;
  color:var(--amber);border:1px solid rgba(227,179,65,.4);border-radius:999px;padding:3px 10px}
.acc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:16px}
.acc-card{background:var(--surface);border:1px solid var(--border-2);border-radius:12px;padding:13px}
.acc-card .lab{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.acc-card .big{font-weight:800;font-size:1.3rem;color:var(--green-soft);font-family:var(--mono)}
.acc-list{margin:.4rem 0 0;padding:0;list-style:none}
.acc-list li{display:flex;align-items:center;gap:8px;font-size:.86rem;color:var(--text-dim);padding:3px 0}
.acc-foot{display:flex;flex-wrap:wrap;gap:10px;padding:0 16px 16px}
@media (max-width:760px){.acc-grid{grid-template-columns:1fr}}

/* ---------- configurator ---------- */
.cfg{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(18px,3vw,30px)}
.cfg-row{display:grid;grid-template-columns:200px 1fr;gap:14px;align-items:center;
  padding:14px 0;border-bottom:1px solid var(--border-2)}
.cfg-row:last-of-type{border-bottom:0}
.cfg-row .q{font-weight:700;color:var(--text)}
.cfg-row .q small{display:block;font-weight:500;color:var(--muted);font-size:.82rem}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{background:var(--bg);border:1px solid var(--border);color:var(--text-dim);border-radius:10px;
  padding:.5rem .85rem;font-size:.9rem;font-weight:600;cursor:pointer;font-family:inherit}
.opt:hover{border-color:var(--border-green);color:var(--text)}
.opt[aria-pressed="true"]{background:rgba(34,197,94,.16);border-color:var(--green);color:#fff}
.cfg-out{margin-top:20px;background:var(--bg-2);border:1px solid var(--border-green);border-radius:var(--r);
  padding:18px}
.cfg-out h3{color:var(--green-soft)}
.cfg-out .reco{font-size:1.25rem;font-weight:800;margin:.2rem 0 .4rem}
@media (max-width:640px){.cfg-row{grid-template-columns:1fr;gap:8px}}

/* ---------- delivery report sample ---------- */
.report{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.report-head{padding:14px 18px;background:var(--surface-2);border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.report-head .demo-tag{margin-left:auto;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--amber)}
.report-line{display:flex;align-items:center;gap:12px;padding:11px 18px;border-bottom:1px solid var(--border-2);font-size:.92rem}
.report-line:last-child{border-bottom:0}
.report-line .name{color:var(--text-dim);flex:1}
.report-line .res{font-family:var(--mono);font-size:.84rem;color:var(--muted)}
.pass{color:var(--green);font-weight:700}
.badge-pass{display:inline-flex;align-items:center;gap:5px;font-size:.72rem;font-weight:800;color:#04130a;
  background:var(--green);border-radius:999px;padding:2px 9px}

/* ---------- FAQ accordion ---------- */
.faq-item{border:1px solid var(--border);border-radius:12px;background:var(--surface);margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;color:var(--text);font-family:inherit;
  font-weight:700;font-size:1rem;padding:15px 18px;cursor:pointer;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq-q .ico{color:var(--green);transition:transform .2s ease;flex:0 0 auto}
.faq-q[aria-expanded="true"] .ico{transform:rotate(45deg)}
.faq-a{padding:0 18px;max-height:0;overflow:hidden;color:var(--text-dim);transition:max-height .25s ease,padding .25s ease}
.faq-q[aria-expanded="true"] + .faq-a{padding:0 18px 16px;max-height:420px}

/* ---------- CTA section ---------- */
.cta{background:linear-gradient(135deg,var(--surface-2),var(--bg-3));border:1px solid var(--border-green);
  border-radius:var(--r-lg);padding:clamp(26px,4vw,48px);text-align:center}
.cta h2{margin-bottom:.5rem}
.cta .sub{color:var(--text-dim);max-width:56ch;margin:0 auto 1.3rem}

/* ---------- disclaimer ---------- */
.disclaimer{border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:14px 16px;
  font-size:.9rem;color:var(--text-dim)}
.disclaimer b{color:var(--text)}
.section--paper .disclaimer{background:#eef4f0;border-color:var(--paper-line);color:var(--paper-muted)}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:.84rem;color:var(--muted);padding:14px 0 0}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--green)}
.crumbs span{margin:0 .4rem;color:var(--faint)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--border);padding:48px 0 26px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.3fr;gap:24px}
.foot-grid h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:.7rem;font-weight:800}
.foot-grid a{display:block;color:var(--text-dim);font-size:.92rem;padding:3px 0}
.foot-grid a:hover{color:var(--green)}
.foot-legal{margin-top:30px;padding-top:18px;border-top:1px solid var(--border);font-size:.82rem;color:var(--muted)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;margin-top:14px;
  font-size:.82rem;color:var(--faint)}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}}
@media (scripting:none){[data-reveal]{opacity:1;transform:none}}

/* ---------- cookie banner ---------- */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:150;max-width:560px;margin-inline:auto;
  background:var(--surface-2);border:1px solid var(--border-green);border-radius:14px;padding:16px 18px;
  box-shadow:0 24px 60px -20px rgba(0,0,0,.85)}
.cookie p{font-size:.88rem;color:var(--text-dim);margin:0 0 .7rem}
.cookie .row{display:flex;gap:10px;flex-wrap:wrap}
.cookie[hidden]{display:none}

/* ---------- helpers ---------- */
.mt-0{margin-top:0}.mt-1{margin-top:.6rem}.mt-2{margin-top:1.2rem}.mt-3{margin-top:2rem}
.mb-2{margin-bottom:1.2rem}
.maxw{max-width:70ch}
@media (max-width:760px){.g2,.g3,.g4{grid-template-columns:1fr}}
@media (min-width:761px) and (max-width:1000px){.g4{grid-template-columns:1fr 1fr}.g3{grid-template-columns:1fr 1fr}}
/* mobile: i bottoni lunghi vanno a capo invece di sforare; le CTA hero si impilano full-width */
@media (max-width:640px){
  .btn-row .btn{white-space:normal;text-align:center}
  .hero .btn-row{flex-direction:column;align-items:stretch}
  .hero .btn-row .btn{width:100%}
  .cta .btn-row{flex-direction:column;align-items:stretch}
}