/* ============ SocialStream® Engine — Layout B (editoriale/engineering) ============ */
:root{
  --bg:#07090F; --bg2:#0B0F19; --card:#10141F;
  --line:rgba(140,160,255,.14);
  --text:#EAEEFA; --muted:#9AA3BD;
  --blue:#6B84F5; --violet:#9B6BFF; --teal:#3DD6C4;
  --grad:linear-gradient(120deg,#6B84F5 10%,#9B6BFF 90%);
  --light:#F6F8FE; --light-text:#0C1120; --light-muted:#4A5468;
  --r:16px; --wrap:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:'Plus Jakarta Sans',sans-serif;line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,5.4vw,4rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800;margin-bottom:.6em}
h3{font-size:1.12rem;font-weight:700}
sup{font-size:.45em;vertical-align:super}
a{color:inherit;text-decoration:none}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.tm{font-size:.5em;vertical-align:super;color:var(--violet)}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);margin-bottom:18px;display:inline-flex;align-items:center;gap:10px}
.eyebrow__dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
.lead{color:var(--muted);font-size:1.12rem;max-width:640px;margin:22px auto 30px}
.sec__intro{color:var(--muted);max-width:640px;margin-bottom:40px}
.note{font-family:'JetBrains Mono',monospace;font-size:.74rem;color:var(--muted);margin-top:20px;opacity:.8}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.95rem;padding:13px 24px;border-radius:12px;transition:transform .18s,box-shadow .18s,border-color .18s;white-space:nowrap}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 8px 28px rgba(107,132,245,.35)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(155,107,255,.45)}
.btn--ghost{border:1px solid var(--line);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:var(--blue)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(7,9,15,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;gap:30px;height:66px}
.nav__brand{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:1.05rem}
.nav__brand em{font-style:normal;font-family:'JetBrains Mono',monospace;font-weight:400;font-size:.56em;letter-spacing:.34em;color:var(--muted);display:block;margin-top:-2px}
.nav__links{display:flex;gap:26px;margin-left:auto;font-size:.9rem;color:var(--muted)}
.nav__links a:hover{color:var(--text)}
.nav__cta{padding:9px 18px;font-size:.85rem}

/* hero */
.hero{position:relative;padding:104px 0 86px;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:
  radial-gradient(720px 420px at 50% -10%,rgba(107,132,245,.2),transparent 70%),
  radial-gradient(560px 360px at 85% 60%,rgba(155,107,255,.1),transparent 70%);pointer-events:none}
.hero__in{text-align:center;position:relative;max-width:840px}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* console (signature) */
.console{margin-top:64px;background:#0A0E18;border:1px solid var(--line);border-radius:var(--r);box-shadow:0 36px 80px rgba(0,0,0,.5);position:relative;overflow:hidden}
.console::before{content:"";position:absolute;inset:-1px;border-radius:var(--r);padding:1px;background:linear-gradient(140deg,rgba(107,132,245,.55),transparent 30%,transparent 70%,rgba(155,107,255,.55));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.console__bar{display:flex;align-items:center;gap:8px;padding:13px 18px;border-bottom:1px solid var(--line);font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--muted)}
.dot{width:10px;height:10px;border-radius:50%}
.dot--r{background:#E06A6A}.dot--y{background:#E0BE6A}.dot--g{background:#5FCB8F}
.console__title{margin-left:10px}
.console__live{margin-left:auto;color:var(--teal);display:flex;align-items:center;gap:7px}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--teal);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(61,214,196,.5)}50%{box-shadow:0 0 0 6px rgba(61,214,196,0)}}
.console__log{list-style:none;padding:18px 22px;display:grid;gap:9px;font-family:'JetBrains Mono',monospace;font-size:.8rem}
.console__log li{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap;opacity:0;transform:translateX(-8px);transition:opacity .4s,transform .4s}
.console__log li.on{opacity:1;transform:none}
.console__log .t{color:#5A647F}
.console__log b{color:var(--blue);font-weight:500}
.console__log i{color:var(--muted);font-style:normal;flex:1;min-width:200px}
.console__log .ok{color:var(--teal);margin-left:auto}
.console__foot{padding:14px 22px;border-top:1px solid var(--line);font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.95rem;text-align:center}

/* sections con rail laterale */
.sec{padding:104px 0}
.sec--alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec__grid{display:grid;grid-template-columns:180px 1fr;gap:48px;align-items:start}
.rail{position:sticky;top:96px;display:grid;gap:6px;font-family:'JetBrains Mono',monospace}
.rail__n{font-size:2rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:500}
.rail__t{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}

/* tabella confronto */
.compare{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:.92rem}
.compare__row{display:grid;grid-template-columns:1fr 1.2fr 1.2fr;gap:16px;padding:14px 20px;border-top:1px solid var(--line);align-items:baseline}
.compare__row:first-child{border-top:0}
.compare__row--head{background:rgba(255,255,255,.03);font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.85rem}
.compare__row > span:first-child{color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:.74rem}
.compare__row--head > span:nth-child(2){color:#E58A8A}
.compare__row--head > span:nth-child(3){color:var(--teal)}
.bad{color:var(--muted)}
.bad::before{content:"× ";color:#E58A8A;font-weight:700}
.good{color:var(--text)}
.good::before{content:"✓ ";color:var(--teal);font-weight:700}

/* steps */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:border-color .2s,transform .2s}
.step:hover{border-color:rgba(107,132,245,.5);transform:translateY(-3px)}
.step h3{margin-bottom:8px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step p{color:var(--muted);font-size:.92rem}
.aiband{margin-top:36px;padding:15px 20px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02);font-family:'JetBrains Mono',monospace;font-size:.76rem;color:var(--muted)}

/* meters score */
.meters{display:grid;gap:16px;max-width:640px}
.meter{display:grid;grid-template-columns:150px 1fr 64px;gap:16px;align-items:center}
.meter__label{font-size:.88rem;color:var(--muted)}
.meter__bar{height:10px;border-radius:99px;background:rgba(140,160,255,.12);overflow:hidden}
.meter__bar i{display:block;height:100%;width:0;border-radius:99px;background:var(--grad);transition:width 1.4s cubic-bezier(.2,.7,.2,1)}
.meter__val{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;text-align:right}
.meter__val small{font-weight:500;color:var(--muted);font-size:.7em}
.meter--total{padding-top:14px;border-top:1px solid var(--line)}
.meter--total .meter__label{color:var(--text);font-weight:600}
.meter--total .meter__val{font-size:1.3rem}

/* ecosistema — sezione chiara con logo */
.eco{background:var(--light);color:var(--light-text);padding:104px 0;text-align:center}
.eco__logo{height:64px;width:auto;margin-bottom:30px}
.eco h2{color:var(--light-text)}
.eco__hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eco__intro{color:var(--light-muted);max-width:640px;margin:0 auto 48px}
.eco__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;text-align:left}
.eco__card{background:#fff;border:1px solid #E3E8F4;border-radius:var(--r);padding:28px;display:flex;flex-direction:column;gap:12px;box-shadow:0 10px 30px rgba(12,17,32,.06)}
.eco__card--core{border-color:rgba(107,132,245,.5);box-shadow:0 16px 44px rgba(107,132,245,.18)}
.eco__role{font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.eco__card h3{color:var(--light-text)}
.eco__card p{color:var(--light-muted);font-size:.92rem;flex:1}
.eco__link{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.9rem;color:var(--blue)}
.eco__link:hover{color:var(--violet)}

/* closing / footer */
.closing{padding:110px 0;background:radial-gradient(700px 380px at 50% 0%,rgba(107,132,245,.16),transparent 70%),var(--bg2);border-top:1px solid var(--line);text-align:center}
.closing__in p{color:var(--muted);max-width:640px;margin:18px auto 32px}
.foot{border-top:1px solid var(--line);padding:56px 0 0}
.foot__in{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:44px;padding-bottom:44px}
.foot__brand{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:1.1rem}
.foot__brand em{font-style:normal;font-family:'JetBrains Mono',monospace;font-weight:400;font-size:.56em;letter-spacing:.34em;color:var(--muted);display:block}
.foot__desc{color:var(--muted);font-size:.88rem;margin-top:12px;max-width:340px}
.foot__col{display:grid;gap:10px;align-content:start;font-size:.9rem;color:var(--muted)}
.foot__col h4{color:var(--text);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.foot__col a:hover{color:var(--text)}
.foot__legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 24px;border-top:1px solid var(--line);font-size:.76rem;color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.console__log li{opacity:1;transform:none}
  .meter__bar i{transition:none}
  html{scroll-behavior:auto}
}

/* responsive */
@media (max-width:980px){
  .sec__grid{grid-template-columns:1fr;gap:24px}
  .rail{position:static;display:flex;align-items:baseline;gap:14px}
  .steps{grid-template-columns:1fr}
  .eco__grid{grid-template-columns:1fr}
  .nav__links{display:none}
  .foot__in{grid-template-columns:1fr;gap:30px}
  .compare__row{grid-template-columns:1fr;gap:6px;padding:14px 16px}
  .compare__row--head{display:none}
  .compare__row > span:first-child{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em}
}
@media (max-width:560px){
  .hero{padding:68px 0 60px}
  .sec,.eco{padding:72px 0}
  .meter{grid-template-columns:110px 1fr 48px;gap:10px}
  .console__log{font-size:.7rem;padding:14px}
  .nav__cta{display:none}
  .eco__logo{height:48px}
}

/* logo cliccabile */
.eco__logolink{display:inline-block;margin-bottom:30px;transition:opacity .2s}
.eco__logolink:hover{opacity:.78}
.eco__logolink .eco__logo{margin-bottom:0;display:block}

/* titolo brand nel hero */
.hero__brand{font-size:clamp(3rem,7.5vw,5.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.02;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.hero__brand sup{color:var(--violet)}
.hero__brand-sub{display:block;font-family:'JetBrains Mono',monospace;font-weight:400;font-size:.22em;letter-spacing:.58em;color:var(--muted);-webkit-text-fill-color:var(--muted);margin-top:10px;text-indent:.29em}
.hero__claim{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:clamp(1.5rem,3.4vw,2.3rem);letter-spacing:-.02em;line-height:1.18;margin-top:26px;color:var(--text)}

/* loghi ufficiali SocialStream */
.nav__logo{height:22px;width:auto;display:block}
.nav__brand em{margin-top:3px}
.hero__brand-img{width:min(620px,86%);height:auto;display:block;margin:0 auto;filter:drop-shadow(0 10px 40px rgba(123,118,250,.35))}
.foot__logo{height:24px;width:auto;display:block}
.foot__brand em{margin-top:4px}