/* =========================================================
   AMNIOCENTESI VIRTUALE — ALTAMEDICA
   Design system. Palette derivata dai loghi registrati.
   ========================================================= */

:root{
  /* Palette dai loghi */
  --navy:#13539D;
  --navy-deep:#0E3F78;
  --navy-ink:#0A2E58;
  --teal:#1BA6AD;
  --teal-deep:#127E85;
  --ivory:#FBFAF7;
  --paper:#FFFFFF;
  --surface:#F2F6F8;
  --surface-2:#E9F0F3;
  --line:#D8E0E6;
  --line-soft:#E7EDF1;
  --ink:#1B2733;
  --ink-soft:#4A5763;
  --grey:#6B7885;

  /* Tipografia */
  --serif:'Fraunces','Georgia',serif;
  --sans:'Inter','Helvetica Neue',Arial,sans-serif;

  /* Misure */
  --maxw:1180px;
  --gutter:clamp(20px,5vw,64px);
  --radius:16px;
  --radius-sm:10px;

  --shadow-sm:0 1px 2px rgba(14,63,120,.04),0 2px 8px rgba(14,63,120,.05);
  --shadow-md:0 4px 16px rgba(14,63,120,.07),0 12px 32px rgba(14,63,120,.06);

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--ivory);line-height:1.65;font-size:17px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--teal-deep);text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);line-height:1.15;font-weight:600;margin:0 0 .4em;}
p{margin:0 0 1em;}
ul{margin:0 0 1em;padding-left:1.1em;}
li{margin:.3em 0;}
::selection{background:rgba(27,166,173,.22);}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);}
.section{padding:clamp(56px,8vw,104px) 0;}
.section--tint{background:var(--surface);}
.section--deep{background:var(--navy-deep);color:#EAF1F8;}
.section--deep h1,.section--deep h2,.section--deep h3{color:#fff;}
.narrow{max-width:760px;}

.eyebrow{
  font-family:var(--sans);font-weight:600;font-size:.74rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--teal-deep);
  margin:0 0 1rem;display:flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--teal);display:inline-block;}
.section--deep .eyebrow{color:#7FD3D8;}
.section--deep .eyebrow::before{background:#7FD3D8;}

h1{font-size:clamp(2.1rem,5vw,3.5rem);letter-spacing:-.015em;}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.01em;}
h3{font-size:clamp(1.2rem,2vw,1.5rem);}
.lead{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--ink-soft);line-height:1.55;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(251,250,247,.86);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:74px;}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--serif);font-weight:600;color:var(--navy);font-size:1.12rem;letter-spacing:-.01em;}
.brand:hover{text-decoration:none;}
.brand img{height:40px;width:auto;}
.brand small{display:block;font-family:var(--sans);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:1.6rem;list-style:none;margin:0;padding:0;}
.nav-links a{color:var(--ink);font-size:.94rem;font-weight:500;}
.nav-links a:hover{color:var(--navy);text-decoration:none;}
.nav-cta{
  display:inline-flex;align-items:center;gap:.5em;background:var(--navy);color:#fff;
  padding:.6em 1.15em;border-radius:100px;font-size:.9rem;font-weight:600;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.nav-cta:hover{background:var(--navy-ink);text-decoration:none;transform:translateY(-1px);}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.3s var(--ease);border-radius:2px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;font-weight:600;font-size:1rem;
  padding:.85em 1.6em;border-radius:100px;cursor:pointer;border:1.5px solid transparent;
  transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
  font-family:var(--sans);line-height:1;
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn--primary{background:var(--navy);color:#fff;}
.btn--primary:hover{background:var(--navy-ink);}
.btn--ghost{background:transparent;color:var(--teal-deep);border-color:var(--teal);}
.btn--ghost:hover{background:rgba(27,166,173,.08);}
.btn--light{background:#fff;color:var(--navy);}
.btn--light:hover{background:#EAF1F8;}
.btn .arw{transition:transform .25s var(--ease);}
.btn:hover .arw{transform:translateX(3px);}
.link-arw{font-weight:600;display:inline-flex;align-items:center;gap:.4em;}
.link-arw .arw{transition:transform .25s var(--ease);}
.link-arw:hover{text-decoration:none;}
.link-arw:hover .arw{transform:translateX(3px);}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,88px) 0 clamp(56px,8vw,96px);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,64px);align-items:center;}
.hero .micro-trust{display:inline-flex;align-items:center;gap:.6em;font-size:.8rem;font-weight:600;letter-spacing:.04em;color:var(--grey);margin-bottom:1.4rem;}
.hero .micro-trust .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);}
.hero h1{margin-bottom:.5em;}
.hero h1 em{font-style:italic;color:var(--navy-deep);}
.hero .lead{margin-bottom:2rem;max-width:34ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;}

/* Signature: helix column */
.helix-stage{position:relative;aspect-ratio:1/1.12;display:flex;align-items:center;justify-content:center;}
.helix-stage .halo{position:absolute;inset:8% 12%;border-radius:50%;background:
  radial-gradient(circle at 50% 40%,rgba(27,166,173,.14),rgba(19,83,157,.05) 55%,transparent 72%);
  filter:blur(2px);}
.helix-svg{position:relative;width:100%;height:100%;overflow:visible;}
.helix-svg .rung{stroke:var(--line);stroke-width:1.4;opacity:.6;}
.helix-svg .strandA{fill:none;stroke:var(--navy);stroke-width:5.5;stroke-linecap:round;}
.helix-svg .strandB{fill:none;stroke:var(--teal);stroke-width:5.5;stroke-linecap:round;}
.helix-svg .node{fill:var(--teal);}
.helix-svg .nodeN{fill:var(--navy);}
.helix-rotate{transform-origin:center;animation:helixspin 26s linear infinite;}
@keyframes helixspin{to{transform:rotate(360deg);}}

/* ---------- Category strip (NIPT / NIFS / Amnio) ---------- */
.triptych{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:0;margin-top:2.5rem;}
.tnode{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.5rem;box-shadow:var(--shadow-sm);}
.tnode .tlabel{font-family:var(--sans);font-weight:700;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);margin-bottom:.6rem;}
.tnode h3{font-size:1.15rem;margin-bottom:.35rem;}
.tnode p{font-size:.92rem;color:var(--ink-soft);margin:0;}
.tnode--hi{border:1.5px solid var(--teal);box-shadow:0 8px 28px rgba(27,166,173,.14);position:relative;}
.tnode--hi .tlabel{color:var(--teal-deep);}
.tnode--hi::after{content:"il confronto vero";position:absolute;top:-11px;left:1.5rem;background:var(--teal);color:#fff;font-family:var(--sans);font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.25em .7em;border-radius:100px;}
.tarrow{display:flex;align-items:center;justify-content:center;color:var(--line);font-size:1.4rem;padding:0 .5rem;}
.tarrow svg{width:22px;height:22px;}

/* ---------- Pillars (chain) ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;counter-reset:pil;margin-top:2.5rem;position:relative;}
.pillars::before{content:"";position:absolute;top:44px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,var(--navy),var(--teal));opacity:.25;z-index:0;}
.pillar{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem 1.35rem 1.4rem;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
.pillar:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.pillar .pnum{width:46px;height:46px;border-radius:12px;background:var(--surface-2);color:var(--navy);display:flex;align-items:center;justify-content:center;margin-bottom:1rem;}
.pillar .pnum svg{width:24px;height:24px;stroke:var(--navy);fill:none;stroke-width:1.75;}
.pillar .pk{font-family:var(--sans);font-size:.7rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--teal-deep);}
.pillar h3{font-size:1.12rem;margin:.25rem 0 .5rem;}
.pillar p{font-size:.9rem;color:var(--ink-soft);margin:0;}
.pillar details{margin-top:.9rem;border-top:1px solid var(--line-soft);padding-top:.7rem;}
.pillar summary{font-size:.82rem;font-weight:600;color:var(--navy);cursor:pointer;list-style:none;display:flex;align-items:center;gap:.4em;}
.pillar summary::-webkit-details-marker{display:none;}
.pillar summary::before{content:"+";font-size:1rem;color:var(--teal);font-weight:700;}
.pillar details[open] summary::before{content:"–";}
.pillar details p{margin-top:.6rem;font-size:.85rem;line-height:1.55;}

/* ---------- Comparison table ---------- */
.tablewrap{overflow-x:auto;margin-top:2rem;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-sm);}
table.compare{width:100%;border-collapse:collapse;background:#fff;min-width:640px;}
table.compare th,table.compare td{padding:.9rem 1.1rem;text-align:left;border-bottom:1px solid var(--line-soft);font-size:.92rem;vertical-align:top;}
table.compare thead th{background:var(--navy);color:#fff;font-family:var(--sans);font-weight:600;font-size:.86rem;letter-spacing:.01em;position:sticky;top:0;}
table.compare tbody th{font-weight:600;color:var(--ink);background:var(--surface);width:24%;}
table.compare .col-nifs{background:rgba(27,166,173,.06);}
table.compare thead .col-nifs{background:var(--teal-deep);}
table.compare tbody tr:last-child td,table.compare tbody tr:last-child th{border-bottom:0;}
.mark-yes{color:var(--teal-deep);font-weight:700;}
.mark-part{color:#B07A1E;font-weight:700;}
.mark-no{color:var(--grey);}

/* ---------- Data highlight (prudent) ---------- */
.evidence{display:grid;grid-template-columns:auto 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center;}
.stat{border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:1.8rem 2.2rem;text-align:center;background:rgba(255,255,255,.04);}
.stat .num{font-family:var(--serif);font-size:clamp(3rem,7vw,4.4rem);color:#fff;line-height:1;font-weight:600;letter-spacing:-.02em;}
.stat .num small{font-size:.4em;vertical-align:top;}
.stat .caption{font-family:var(--sans);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:#9FC4E4;margin-top:.7rem;}
.evidence .note{font-size:.9rem;color:#B9CCE0;border-left:2px solid var(--teal);padding-left:1rem;margin-top:1.2rem;font-style:italic;}

/* ---------- Two doors ---------- */
.doors{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.5rem;}
.door{border-radius:var(--radius);padding:2.2rem;border:1px solid var(--line);transition:transform .3s var(--ease),box-shadow .3s var(--ease);position:relative;overflow:hidden;}
.door:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);text-decoration:none;}
.door--patient{background:linear-gradient(135deg,#fff,#F4FAFA);}
.door--doctor{background:linear-gradient(135deg,#fff,#EEF4FA);}
.door .dk{font-family:var(--sans);font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--teal-deep);}
.door h3{margin:.4rem 0 .5rem;}
.door p{color:var(--ink-soft);font-size:.95rem;margin-bottom:1rem;}
.door .link-arw{color:var(--navy);}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;margin-top:2.5rem;counter-reset:tl;}
.tstep{position:relative;padding-top:1.6rem;}
.tstep::before{counter-increment:tl;content:counter(tl);position:absolute;top:0;left:0;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--sans);font-weight:700;font-size:.85rem;display:flex;align-items:center;justify-content:center;}
.tstep::after{content:"";position:absolute;top:15px;left:36px;right:-1.1rem;height:2px;background:var(--line);}
.tstep:last-child::after{display:none;}
.tstep h4{font-family:var(--sans);font-size:1rem;color:var(--navy);margin:.3rem 0 .3rem;}
.tstep p{font-size:.86rem;color:var(--ink-soft);margin:0;}

/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center;}
.trust-badges{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.4rem;}
.badge{display:inline-flex;align-items:center;gap:.5em;background:#fff;border:1px solid var(--line);border-radius:100px;padding:.5em 1em;font-size:.82rem;font-weight:600;color:var(--navy-deep);box-shadow:var(--shadow-sm);}
.badge .bd{width:7px;height:7px;border-radius:50%;background:var(--teal);}

/* ---------- FAQ ---------- */
.faq{margin-top:2rem;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{cursor:pointer;list-style:none;padding:1.2rem 2.5rem 1.2rem 0;font-family:var(--serif);font-size:1.1rem;color:var(--navy);position:relative;font-weight:600;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:0;top:1.1rem;font-size:1.4rem;color:var(--teal);font-family:var(--sans);transition:transform .3s var(--ease);}
.faq-item[open] summary::after{content:"–";}
.faq-item .ans{padding:0 0 1.3rem;color:var(--ink-soft);font-size:.96rem;max-width:70ch;}

/* ---------- Contact / form ---------- */
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.6rem,4vw,2.6rem);box-shadow:var(--shadow-md);}
.field{margin-bottom:1.1rem;}
.field label{display:block;font-size:.85rem;font-weight:600;color:var(--navy-deep);margin-bottom:.4rem;}
.field input,.field select,.field textarea{
  width:100%;padding:.75em .9em;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--sans);font-size:.95rem;color:var(--ink);background:var(--ivory);transition:border-color .2s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);background:#fff;}
.field textarea{min-height:120px;resize:vertical;}
.consent{display:flex;gap:.6em;align-items:flex-start;font-size:.82rem;color:var(--grey);margin:1rem 0 1.3rem;}
.consent input{margin-top:.2em;}
.form-note{font-size:.8rem;color:var(--grey);margin-top:1rem;}

/* ---------- Callout ---------- */
.callout{background:var(--surface);border-left:4px solid var(--teal);border-radius:var(--radius-sm);padding:1.3rem 1.5rem;margin:1.6rem 0;}
.callout--navy{border-left-color:var(--navy);}
.callout h4{font-family:var(--sans);font-size:.95rem;color:var(--navy);margin:0 0 .4rem;}
.callout p{font-size:.92rem;color:var(--ink-soft);margin:0;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-ink);color:#B9CCE0;padding:clamp(48px,7vw,72px) 0 2rem;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem;}
.site-footer h5{font-family:var(--sans);font-size:.75rem;letter-spacing:.13em;text-transform:uppercase;color:#7FD3D8;margin:0 0 1rem;font-weight:700;}
.site-footer a{color:#CDDCEC;font-size:.92rem;display:block;margin:.5rem 0;}
.site-footer a:hover{color:#fff;}
.foot-logo{width:190px;max-width:70%;height:auto;background:#fff;border-radius:12px;padding:12px 16px;margin-bottom:1rem;}
.foot-brand p{font-size:.9rem;color:#9FB4CC;max-width:36ch;}
.foot-disclaimer{border-top:1px solid rgba(255,255,255,.12);padding-top:1.6rem;font-size:.78rem;color:#8AA0B8;line-height:1.6;}
.foot-legal{display:flex;gap:1.2rem;flex-wrap:wrap;margin-top:1rem;}
.foot-legal a{font-size:.8rem;}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- Page hero (interior) ---------- */
.page-hero{padding:clamp(56px,8vw,96px) 0 clamp(32px,5vw,56px);background:linear-gradient(180deg,var(--surface),var(--ivory));}
.page-hero h1{max-width:16ch;}
.page-hero .lead{max-width:56ch;}
.breadcrumb{font-size:.82rem;color:var(--grey);margin-bottom:1.2rem;}
.breadcrumb a{color:var(--grey);}

/* prose */
.prose{max-width:720px;}
.prose h2{margin-top:2.2rem;}
.prose h3{margin-top:1.6rem;color:var(--teal-deep);font-size:1.25rem;}
.prose ul li{color:var(--ink-soft);}
.prose ul li strong{color:var(--ink);}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr;}
  .helix-stage{max-width:340px;margin:0 auto;order:-1;}
  .trust-grid{grid-template-columns:1fr;}
  .evidence{grid-template-columns:1fr;text-align:center;}
  .evidence .note{text-align:left;}
}
@media (max-width:820px){
  .nav-links{position:fixed;inset:74px 0 auto 0;background:var(--ivory);flex-direction:column;align-items:flex-start;gap:0;padding:1rem var(--gutter) 1.6rem;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .35s var(--ease);box-shadow:var(--shadow-md);}
  .nav-links.open{transform:none;}
  .nav-links li{width:100%;border-bottom:1px solid var(--line-soft);}
  .nav-links li:last-child{border-bottom:0;padding-top:.8rem;}
  .nav-links a{display:block;padding:.9rem 0;font-size:1rem;}
  .nav-toggle{display:block;}
  .pillars,.timeline{grid-template-columns:1fr 1fr;}
  .pillars::before{display:none;}
  .doors{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:1.8rem;}
}
@media (max-width:560px){
  .triptych{grid-template-columns:1fr;}
  .tarrow{transform:rotate(90deg);padding:.3rem 0;}
  .pillars,.timeline{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}
/* --- Fix: testo bianco sul pulsante "Prenota una consulenza" --- */
.nav-links a.nav-cta,
.nav-links a.nav-cta:hover,
.nav-links a.nav-cta:focus,
a.nav-cta {
  color: #fff !important;
}