/* =====================================================================
   SelfSoft Sistemas — Design System 2026
   Brand: navy + cyan, accento rosso. Moderno, professionale, affidabile.
   ===================================================================== */

:root{
  /* Brand */
  --navy-900:#0c1733;   /* deep background */
  --navy-800:#102043;
  --navy-700:#16294f;
  --navy:#1f3568;       /* brand navy (logo bg) */
  --navy-500:#284078;
  --cyan:#00aeef;       /* brand cyan */
  --cyan-600:#0091ce;
  --cyan-300:#5fd0ff;
  --red:#e5202a;        /* accent, usato con parsimonia */

  /* Neutrals */
  --ink:#0d1730;
  --slate:#475672;
  --muted:#64748b;
  --line:rgba(13,23,48,.10);
  --bg:#f4f7fc;
  --bg-2:#eef3fb;
  --card:#ffffff;

  /* FX */
  --shadow-sm:0 4px 14px rgba(12,23,51,.06);
  --shadow:0 18px 50px rgba(12,23,51,.10);
  --shadow-lg:0 30px 80px rgba(8,16,40,.18);
  --ring:0 0 0 4px rgba(0,174,239,.16);

  --radius:16px;
  --radius-lg:22px;
  --max:1160px;
  --grad-cyan:linear-gradient(135deg,var(--cyan),var(--cyan-600));
  --grad-navy:linear-gradient(160deg,var(--navy-700),var(--navy-900));
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{ max-width:100%; display:block; }
h1,h2,h3{ letter-spacing:-.02em; }

a{ color:var(--cyan-600); text-decoration:none; transition:color .15s ease; }
a:hover{ color:var(--cyan); }

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 20px;
}

/* ---------- Eyebrow / kicker ---------- */
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan-600);
  margin:0 0 14px;
}
.kicker:before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:var(--grad-cyan);
}
.kicker.light{ color:var(--cyan-300); }
.kicker.light:before{ background:var(--cyan-300); }

/* ---------- Badges / pills ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 13px;
  border-radius:999px;
  border:1px solid rgba(0,174,239,.22);
  background:rgba(0,174,239,.07);
  font-weight:700;
  font-size:13px;
  color:#0a4d6e;
  white-space:nowrap;
}
.badge:before{
  content:"";
  width:7px;height:7px;border-radius:999px;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,174,239,.16);
}
.badge.solid{
  background:var(--grad-cyan); color:#fff; border-color:transparent;
}
.badge.solid:before{ background:#fff; box-shadow:0 0 0 3px rgba(255,255,255,.25); }
.badge.ghost-light{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
  color:#dbe7ff;
}
.badge.ghost-light:before{ background:var(--cyan-300); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 20px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-weight:800;
  font-size:15px;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn svg{ width:18px;height:18px; }
.btn:hover{ transform:translateY(-2px); box-shadow:var(--shadow-sm); }
.btn.primary{
  background:var(--grad-cyan);
  color:#fff;
  border-color:transparent;
  box-shadow:0 12px 30px rgba(0,174,239,.32);
}
.btn.primary:hover{ box-shadow:0 18px 40px rgba(0,174,239,.42); color:#fff; }
.btn.ghost{
  background:transparent;
  border-color:rgba(255,255,255,.28);
  color:#fff;
}
.btn.ghost:hover{ background:rgba(255,255,255,.10); color:#fff; }
.btn.dark{
  background:var(--navy);
  color:#fff;border-color:transparent;
}
.btn.dark:hover{ background:var(--navy-700); color:#fff; }

/* ---------- Header ---------- */
.topbar{
  position:sticky; top:0; z-index:60;
  background:rgba(12,23,51,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .25s ease, box-shadow .25s ease;
}
.topbar.scrolled{
  background:rgba(12,23,51,.96);
  box-shadow:0 10px 30px rgba(8,16,40,.35);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:18px;
}
.brand{ display:inline-flex; align-items:center; }
.brand img{ height:34px; width:auto; }
.menu{
  display:flex;
  align-items:center;
  gap:6px;
}
.menu a{
  font-weight:700;
  font-size:15px;
  color:#c7d4ee;
  padding:9px 13px;
  border-radius:10px;
  transition:color .15s ease, background .15s ease;
}
.menu a:hover{ color:#fff; background:rgba(255,255,255,.06); }
.menu a.active{ color:#fff; }
.menu a.active:after{
  content:"";
  display:block;
  height:2px; margin-top:5px;
  border-radius:2px;
  background:var(--grad-cyan);
}
.menu .btn{ margin-left:10px; padding:10px 18px; }

/* Language switcher */
.lang{ display:flex; align-items:center; gap:2px; margin-left:6px; }
.lang a{
  font-size:13px; font-weight:800; color:#8aa0c8;
  padding:6px 8px; border-radius:8px; text-transform:uppercase; letter-spacing:.03em;
}
.lang a:hover{ color:#fff; background:rgba(255,255,255,.07); }
.lang a.active{ color:#fff; background:rgba(0,174,239,.20); }

.menu-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  cursor:pointer;
}
.menu-toggle span,
.menu-toggle span:before,
.menu-toggle span:after{
  display:block; width:20px;height:2px;border-radius:2px;
  background:#fff; position:relative; margin:0 auto;
  transition:.2s ease;
}
.menu-toggle span:before,.menu-toggle span:after{ content:""; position:absolute; left:0; }
.menu-toggle span:before{ top:-6px; }
.menu-toggle span:after{ top:6px; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(1100px 560px at 12% 8%, rgba(0,174,239,.28), transparent 56%),
    radial-gradient(900px 520px at 92% 30%, rgba(45,90,180,.32), transparent 55%),
    var(--grad-navy);
  color:#fff;
  overflow:hidden;
  padding:84px 0 90px;
}
.hero:before{ /* subtle grid */
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(820px 520px at 70% 0%, #000 30%, transparent 75%);
  -webkit-mask-image:radial-gradient(820px 520px at 70% 0%, #000 30%, transparent 75%);
  pointer-events:none;
}
.hero .container{ position:relative; z-index:1; }
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.hero h1{
  margin:0 0 18px;
  font-size:clamp(34px,4.6vw,52px);
  line-height:1.06;
  font-weight:900;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--cyan-300),var(--cyan));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.sub{
  margin:0 0 26px;
  font-size:clamp(16px,1.7vw,19px);
  color:rgba(226,234,250,.86);
  max-width:560px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-badges{ display:flex; gap:10px; flex-wrap:wrap; margin-top:26px; }

/* Hero side panel (glass) */
.hero-panel{
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-lg);
  backdrop-filter:blur(8px);
}
.hero-panel h3{
  margin:0 0 16px; font-size:15px; color:#cfe0ff; font-weight:800;
  text-transform:uppercase; letter-spacing:.1em;
}
.panel-row{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.pcell{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:14px;
}
.pcell .pi{
  width:34px;height:34px;border-radius:10px;
  background:var(--grad-cyan);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:9px;
}
.pcell .pi svg{ width:18px;height:18px;color:#fff; }
.pcell strong{ display:block;font-size:15px;color:#fff; }
.pcell span{ display:block;font-size:12.5px;color:rgba(214,226,248,.7);font-weight:600;margin-top:1px; }

/* ---------- Trust strip ---------- */
.trust{
  background:var(--navy-900);
  border-top:1px solid rgba(255,255,255,.06);
  padding:22px 0;
}
.trust-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
  text-align:center;
}
.trust .t strong{
  display:block; font-size:26px; color:#fff; font-weight:900; line-height:1.1;
}
.trust .t strong .accent{ color:var(--cyan-300); }
.trust .t span{ font-size:13px; color:rgba(206,219,245,.7); font-weight:700; }

/* ---------- Sections ---------- */
.section{ padding:74px 0; }
.section.alt{ background:var(--bg-2); }
.section-head{ max-width:720px; margin:0 0 40px; }
.section-head.center{ margin-left:auto;margin-right:auto;text-align:center; }
.section h2{
  margin:0 0 12px;
  font-size:clamp(26px,3.2vw,36px);
  color:var(--ink);
  font-weight:900;
}
.section .lead{
  margin:0;
  color:var(--slate);
  font-size:18px;
}

/* ---------- Feature grid / cards ---------- */
.grid{ display:grid; grid-template-columns:repeat(12,1fr); gap:20px; }
.card{
  grid-column:span 4;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:transform .2s ease, box-shadow .25s ease, border-color .2s ease;
}
.card:before{
  content:"";
  position:absolute; left:0; top:0; height:4px; width:100%;
  border-radius:var(--radius) var(--radius) 0 0;
  background:var(--grad-cyan);
  opacity:0; transition:opacity .25s ease;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow); border-color:rgba(0,174,239,.3); }
.card:hover:before{ opacity:1; }
.icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(180deg, rgba(0,174,239,.14), rgba(0,174,239,.05));
  border:1px solid rgba(0,174,239,.22);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.icon svg{ width:26px;height:26px;color:var(--cyan-600); }
.card h3{ margin:0 0 8px; color:var(--ink); font-size:19px; font-weight:800; }
.card p{ margin:0; color:var(--slate); font-size:15.5px; }
.card .tags{ margin-top:16px; display:flex; gap:8px; flex-wrap:wrap; }
.card .tags .badge{ font-size:12px; padding:5px 11px; }

/* highlighted card (AI) */
.card.feature{
  background:var(--grad-navy);
  border-color:transparent;
  color:#fff;
}
.card.feature:before{ opacity:1; }
.card.feature h3{ color:#fff; }
.card.feature p{ color:rgba(220,231,250,.8); }
.card.feature .icon{
  background:rgba(255,255,255,.10); border-color:rgba(255,255,255,.2);
}
.card.feature .icon svg{ color:var(--cyan-300); }

/* ---------- AI band ---------- */
.ai-band{
  background:
    radial-gradient(800px 420px at 85% 20%, rgba(0,174,239,.22), transparent 60%),
    var(--grad-navy);
  color:#fff;
  border-radius:0;
  padding:78px 0;
  position:relative;
  overflow:hidden;
}
.ai-grid{ display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:center; }
.ai-band h2{ color:#fff; font-size:clamp(26px,3.2vw,36px); margin:0 0 14px; font-weight:900; }
.ai-band .lead{ color:rgba(220,231,250,.85); font-size:18px; margin:0 0 22px; }
.ai-list{ display:grid; gap:14px; margin:0; padding:0; list-style:none; }
.ai-list li{
  display:flex; gap:14px; align-items:flex-start;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:16px 18px;
}
.ai-list .ci{
  flex:0 0 auto; width:38px;height:38px;border-radius:11px;
  background:var(--grad-cyan); display:flex;align-items:center;justify-content:center;
}
.ai-list .ci svg{ width:20px;height:20px;color:#fff; }
.ai-list strong{ display:block; color:#fff; font-size:16px; }
.ai-list span{ display:block; color:rgba(214,226,248,.74); font-size:14px; font-weight:600; }

/* ---------- Split panels ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:22px; }
.panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow-sm);
}
.panel h3{ margin:0 0 14px; color:var(--ink); font-size:20px; font-weight:800; }
.list{ margin:0; padding:0; list-style:none; }
.list li{
  position:relative; padding:8px 0 8px 30px; color:var(--slate); font-weight:600;
  border-bottom:1px solid var(--line);
}
.list li:last-child{ border-bottom:none; }
.list li:before{
  content:""; position:absolute; left:0; top:15px;
  width:18px;height:18px;border-radius:50%;
  background:rgba(0,174,239,.12);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2300aeef' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:center;
}

/* ---------- Process / steps ---------- */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; counter-reset:step; }
.step{
  background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius); padding:26px 22px; box-shadow:var(--shadow-sm);
  position:relative;
}
.step .num{
  width:42px;height:42px;border-radius:12px;
  background:var(--grad-navy); color:#fff; font-weight:900; font-size:18px;
  display:flex;align-items:center;justify-content:center; margin-bottom:14px;
}
.step h3{ margin:0 0 6px; font-size:17px; color:var(--ink); font-weight:800; }
.step p{ margin:0; color:var(--slate); font-size:14.5px; }

/* ---------- Portfolio cards ---------- */
.solutions{ display:grid; grid-template-columns:repeat(12,1fr); gap:22px; }
.sol{
  grid-column:span 4;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .25s ease;
  display:flex; flex-direction:column;
}
.sol:hover{ transform:translateY(-6px); box-shadow:var(--shadow); }
.sol .thumb{
  aspect-ratio:750/340;
  background:var(--navy);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.sol .thumb img{ width:100%;height:100%;object-fit:cover; }
.sol .thumb.ai{
  background:
    radial-gradient(420px 220px at 70% 30%, rgba(0,174,239,.4), transparent 60%),
    var(--grad-navy);
  position:relative;
}
.sol .thumb.ai .glyph{
  width:74px;height:74px;border-radius:20px;
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
}
.sol .thumb.ai .glyph svg{ width:40px;height:40px;color:var(--cyan-300); }
.sol .body{ padding:22px 22px 24px; display:flex; flex-direction:column; flex:1; }
.sol .body h3{ margin:0 0 8px; color:var(--ink); font-size:19px; font-weight:800; }
.sol .body p{ margin:0 0 16px; color:var(--slate); font-size:15px; flex:1; }
.sol .tags{ display:flex; gap:8px; flex-wrap:wrap; }
.sol .tags .badge{ font-size:12px; padding:5px 11px; }

/* ---------- CTA band ---------- */
.cta{
  background:
    radial-gradient(700px 360px at 15% 20%, rgba(0,174,239,.22), transparent 60%),
    var(--grad-navy);
  color:#fff; text-align:center; padding:72px 0;
}
.cta h2{ color:#fff; font-size:clamp(26px,3.4vw,38px); margin:0 0 12px; font-weight:900; }
.cta p{ color:rgba(220,231,250,.85); font-size:18px; margin:0 0 26px; }
.cta .hero-actions{ justify-content:center; }

/* ---------- Contact ---------- */
.form{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form .full{ grid-column:1 / -1; }
.form label{ display:block; font-weight:700; font-size:14px; margin-bottom:6px; color:var(--ink); }
.input,textarea{
  width:100%; padding:13px 14px; border-radius:12px;
  border:1px solid var(--line); background:#fff; font-size:15px; font-family:inherit;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.input:focus,textarea:focus{ outline:none; border-color:var(--cyan); box-shadow:var(--ring); }
textarea{ min-height:140px; resize:vertical; }
.info-row{ display:flex; gap:14px; align-items:flex-start; padding:14px 0; border-bottom:1px solid var(--line); }
.info-row:last-child{ border-bottom:none; }
.info-row .ii{
  flex:0 0 auto; width:42px;height:42px;border-radius:12px;
  background:linear-gradient(180deg, rgba(0,174,239,.14), rgba(0,174,239,.05));
  border:1px solid rgba(0,174,239,.22);
  display:flex;align-items:center;justify-content:center;
}
.info-row .ii svg{ width:20px;height:20px;color:var(--cyan-600); }
.info-row .it strong{ display:block; color:var(--ink); font-size:15px; }
.info-row .it span,.info-row .it a{ font-size:14.5px; color:var(--slate); font-weight:600; }

.notice{
  background:rgba(0,174,239,.07);
  border:1px solid rgba(0,174,239,.2);
  border-radius:14px;
  padding:16px;
  color:#0a4d6e;
  font-weight:700;
  font-size:14.5px;
}

/* Contact form feedback + anti-spam honeypot */
.form-status{
  display:none; margin-top:12px; padding:12px 14px;
  border-radius:10px; font-weight:700; font-size:14px;
}
.form-status.sending{ display:block; background:rgba(0,174,239,.08); color:#0a4d6e; border:1px solid rgba(0,174,239,.22); }
.form-status.ok{ display:block; background:rgba(22,163,74,.10); color:#15803d; border:1px solid rgba(22,163,74,.28); }
.form-status.error{ display:block; background:rgba(229,32,42,.08); color:#b91c1c; border:1px solid rgba(229,32,42,.28); }
.hp{ position:absolute !important; left:-9999px; width:1px; height:1px; opacity:0; pointer-events:none; }

/* ---------- Footer ---------- */
.footer{
  background:var(--navy-900);
  color:rgba(206,219,245,.72);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:30px;
  padding-bottom:30px; border-bottom:1px solid rgba(255,255,255,.08);
}
.footer img.flogo{ height:32px; margin-bottom:16px; }
.footer p{ margin:0 0 14px; font-size:15px; max-width:320px; }
.footer h4{ color:#fff; font-size:14px; text-transform:uppercase; letter-spacing:.08em; margin:0 0 16px; }
.footer-links{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.footer-links a{ color:rgba(206,219,245,.78); font-weight:600; font-size:15px; }
.footer-links a:hover{ color:var(--cyan-300); }
.footer .contact-line{ display:flex; gap:10px; margin-bottom:10px; font-size:15px; align-items:flex-start; }
.footer .contact-line svg{ width:18px;height:18px;color:var(--cyan-300);flex:0 0 auto;margin-top:3px; }
.footer .contact-line a{ color:rgba(206,219,245,.85); font-weight:600; }
.footer-bottom{
  padding-top:22px; font-size:13.5px; color:rgba(206,219,245,.55);
  display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap;
}
.footer-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.footer-tags .badge{ background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.14); color:#cfe0ff; }
.footer-tags .badge:before{ background:var(--cyan-300); }

/* ---------- Reveal on scroll (progressive enhancement) ----------
   Only hides content when JS is active (html.js). Without JS the
   content is always visible — never stuck invisible. */
.js .reveal{ opacity:0; transform:translateY(22px); transition:opacity .6s ease, transform .6s ease; }
.js .reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .js .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero{ padding:60px 0 64px; }
  .hero-grid{ grid-template-columns:1fr; gap:30px; }
  .ai-grid{ grid-template-columns:1fr; gap:30px; }
  .trust-grid{ grid-template-columns:repeat(2,1fr); gap:24px 18px; }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .card{ grid-column:span 6; }
  .sol{ grid-column:span 6; }
  .split{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:720px){
  .section{ padding:54px 0; }
  .card{ grid-column:span 12; }
  .sol{ grid-column:span 12; }
  .form{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-bottom{ justify-content:flex-start; }

  .menu-toggle{ display:flex; align-items:center; justify-content:center; }
  .menu{
    display:none; position:absolute; top:72px; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:4px;
    background:rgba(12,23,51,.98);
    border-bottom:1px solid rgba(255,255,255,.1);
    padding:14px 20px 20px;
    box-shadow:0 20px 40px rgba(8,16,40,.4);
  }
  .menu.open{ display:flex; }
  .menu a{ padding:12px 12px; }
  .menu a.active:after{ display:none; }
  .menu .btn{ margin:8px 0 0; }
}