/* ==========================================================================
   RistoSuite — sito di presentazione
   Identità Ink & Teal · Fraunces (display) + Outfit (UI)
   Nessuna dipendenza: un solo foglio di stile, nessuna build.
   ========================================================================== */

:root{
  /* superfici scure */
  --bg:          #0E1A1C;
  --bg-deep:     #0A1315;
  --surface:     #152526;
  --surface-2:   #1B2F30;
  --line:        #23413F;
  --line-soft:   #1B3230;

  /* superfici chiare */
  --light:       #F4F8F7;
  --light-2:     #E7EFED;
  --light-line:  #D2E0DD;

  /* accenti */
  --teal:        #0f9b8e;   /* fondi scuri  — 5,16:1 */
  --teal-hi:     #14b8a6;
  --teal-deep:   #0b7a70;
  --teal-light:  #0b7a70;   /* fondi chiari — 4,87:1, passa AA */
  --amber:       #F2A94B;   /* fondi scuri  — 8,92:1 */
  --amber-dark:  #9A5F08;   /* fondi chiari — 4,89:1, passa AA */

  /* testo */
  --txt:         #E7F0EE;
  --mut:         #8FA8A5;
  --txt-dark:    #0E1A1C;
  --mut-dark:    #4A6360;

  --radius:      18px;
  --radius-lg:   26px;
  --container:   1180px;
  --shadow:      0 18px 44px rgba(0,0,0,.42);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:Outfit,"Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}

/* ---------- tipografia ---------- */

h1,h2,h3{font-family:Fraunces,"Iowan Old Style",Georgia,serif;font-weight:700;line-height:1.14;margin:0}
h1{font-size:clamp(38px,5.4vw,62px);letter-spacing:-.02em}
h2{font-size:clamp(30px,3.8vw,44px);letter-spacing:-.015em}
h3{font-size:20px;font-weight:600;font-family:Outfit,system-ui,sans-serif;line-height:1.35}
p{margin:0}

.eyebrow{
  font-size:12.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--teal);margin:0 0 14px;
}
.lead{font-size:clamp(17px,2vw,20px);color:var(--mut);line-height:1.7}

/* ---------- layout ---------- */

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

section{padding:96px 0;position:relative}
section.tight{padding:72px 0}

.section-head{max-width:720px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{margin-top:16px}

/* fasce chiare
   Nota: sul fondo chiaro il teal #0f9b8e regge solo 3,22:1 — sotto la soglia
   AA per il testo piccolo. Qui si usa --teal-light (4,87:1). */
.light{background:var(--light);color:var(--txt-dark)}
.light .lead,.light .muted,.light p{color:var(--mut-dark)}
.light .eyebrow{color:var(--teal-light)}
.light h1,.light h2,.light h3,.light h4{color:var(--txt-dark)}

/* qualsiasi testo attenuato dentro una fascia chiara */
.light .flow-step p,
.light .flow-tag,
.light .step p,
.light .card p{color:var(--mut-dark)}

.light .flow-tag{border-color:var(--light-line)}
.light .flow-num{color:var(--teal-light);background:rgba(11,122,112,.12);border-color:rgba(11,122,112,.32)}
.light .icon{background:rgba(11,122,112,.11);color:var(--teal-light)}
.light .var{color:var(--amber-dark)}

.deep{background:var(--bg-deep)}

/* ---------- bottoni ---------- */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;border-radius:999px;border:1.5px solid transparent;
  font-size:16px;font-weight:600;font-family:inherit;cursor:pointer;
  transition:transform .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--teal);color:#06211F;box-shadow:0 10px 30px rgba(15,155,142,.28)}
.btn-primary:hover{background:var(--teal-hi);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.light .btn-ghost{border-color:var(--light-line);color:var(--txt-dark)}
.light .btn-ghost:hover{border-color:var(--teal-deep);color:var(--teal-deep)}
.btn-lg{padding:18px 36px;font-size:17px}

.btn-group{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- header ---------- */

.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(14,26,28,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.site-header .container{display:flex;align-items:center;gap:28px;height:76px}

.logo{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:700;letter-spacing:-.02em;flex:none}
.logo-mark{width:36px;height:36px;flex:none;border-radius:9px}
.site-footer .logo-mark,.demo-top .logo-mark{width:32px;height:32px}

.nav{display:flex;gap:28px;margin-left:auto;font-size:15.5px}
.nav a{color:var(--mut);transition:color .16s;padding:6px 0;position:relative}
.nav a:hover{color:var(--txt)}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--teal);
  transition:width .2s ease;
}
.nav a:hover::after{width:100%}

.header-cta{flex:none}

.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:10px;padding:9px 11px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--txt);border-radius:2px}
.nav-toggle span+span{margin-top:5px}

/* ---------- hero ---------- */

.hero{padding:84px 0 96px;overflow:hidden;position:relative}
.hero::before{
  content:"";position:absolute;inset:-30% 30% 40% -20%;
  background:radial-gradient(circle,rgba(15,155,142,.16),transparent 62%);
  pointer-events:none;
}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero h1{margin-bottom:22px}
.hero .lead{margin-bottom:34px;max-width:52ch}

.hero-proof{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.proof{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:9px 17px;font-size:14px;color:var(--mut);
}
.proof .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none}

.hero-art{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--surface);
}

/* ---------- griglie card ---------- */

.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:transform .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--teal)}
.card h3{margin-bottom:10px}
.card p{color:var(--mut);font-size:15.5px;line-height:1.68}

.light .card{background:#fff;border-color:var(--light-line);box-shadow:0 3px 16px rgba(14,26,28,.05)}
.light .card p{color:var(--mut-dark)}

.icon{
  width:46px;height:46px;border-radius:13px;background:rgba(15,155,142,.13);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--teal);
}
.icon svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}

/* ---------- flusso in 8 passi ---------- */

.flow-step{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  padding:52px 0;border-top:1px solid var(--line-soft);
}
.flow-step:first-of-type{border-top:none}
.flow-step:nth-child(even) .flow-art{order:-1}

.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:15px;
  background:rgba(15,155,142,.13);border:1px solid rgba(15,155,142,.34);
  color:var(--teal);font-size:22px;font-weight:700;margin-bottom:20px;
}
.flow-tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--mut);
  border:1px solid var(--line);border-radius:999px;padding:5px 13px;margin-bottom:16px;
}
.flow-step h3{font-size:26px;font-family:Fraunces,Georgia,serif;font-weight:700;margin-bottom:14px}
.flow-step p{color:var(--mut);line-height:1.72;max-width:46ch}

.flow-art{
  border-radius:var(--radius);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.flow-art img{width:100%;aspect-ratio:1/1;object-fit:cover}

/* ---------- app ---------- */

.app-card{display:flex;flex-direction:column;height:100%}
.app-card .platforms{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:22px}
.chip{
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(15,155,142,.12);color:var(--teal);
  border-radius:999px;padding:6px 13px;
}
.light .chip{background:rgba(11,122,112,.11);color:var(--teal-deep)}

/* ---------- assistenza ---------- */

.steps-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.step{
  background:#fff;border:1px solid var(--light-line);border-radius:var(--radius);
  padding:30px;position:relative;
}
.step-n{
  width:38px;height:38px;border-radius:11px;background:var(--teal);color:#06211F;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;
  margin-bottom:18px;
}
.step h3{margin-bottom:8px}
.step p{color:var(--mut-dark);font-size:15.5px}
.step-art{
  margin-top:22px;border-radius:12px;overflow:hidden;background:var(--bg);
  border:1px solid var(--light-line);
}
.step-art img{width:100%;height:118px;object-fit:cover;object-position:center}

/* ---------- prezzi ---------- */

.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.plan{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 30px;position:relative;
}
.plan.featured{border-color:var(--teal);box-shadow:0 0 0 1px var(--teal),0 22px 50px rgba(15,155,142,.16)}
.plan-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--teal);color:#06211F;font-size:12px;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:5px 15px;
  white-space:nowrap;
}
.plan h3{font-size:22px;margin-bottom:6px}
.plan .price{font-family:Fraunces,Georgia,serif;font-size:38px;font-weight:700;margin:16px 0 4px}
.plan .price small{font-family:Outfit,sans-serif;font-size:15px;font-weight:400;color:var(--mut)}
.plan ul{margin:24px 0 28px;display:flex;flex-direction:column;gap:12px}
.plan li{display:flex;gap:11px;font-size:15.5px;color:var(--mut);line-height:1.5}
.plan li svg{width:19px;height:19px;flex:none;margin-top:3px;stroke:var(--teal);
  fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.plan .btn{width:100%}

/* ---------- FAQ ---------- */

.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:0;overflow:hidden;
}
.faq summary{
  cursor:pointer;list-style:none;padding:22px 26px;font-size:17px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:24px;color:var(--teal);flex:none;line-height:1;
  transition:transform .2s ease;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 26px 24px;color:var(--mut);font-size:16px;line-height:1.72}

/* Le FAQ vivono in una fascia chiara: card scura + testo scuro ereditato
   dava 1,12:1, cioè invisibile. Qui diventano card bianche. */
.light .faq details{background:#fff;border-color:var(--light-line);
  box-shadow:0 3px 16px rgba(14,26,28,.05)}
.light .faq summary{color:var(--txt-dark)}
.light .faq summary::after{color:var(--teal-light)}
.light .faq details p{color:var(--mut-dark)}

/* ---------- CTA finale ---------- */

.cta{
  background:linear-gradient(135deg,#0b7a70,#0f9b8e);
  border-radius:var(--radius-lg);padding:66px 48px;text-align:center;color:#04201D;
}
.cta h2{color:#04201D;margin-bottom:16px}
/* Il testo semitrasparente scendeva a 3,18:1 sul teal: qui è pieno. */
.cta p{color:#062724;font-size:19px;max-width:56ch;margin:0 auto 32px}
.cta .btn-group{justify-content:center}
.cta .btn-primary{background:#04201D;color:#E7F0EE;box-shadow:0 10px 30px rgba(0,0,0,.22)}
.cta .btn-primary:hover{background:#0A302C}
.cta .btn-ghost{border-color:rgba(4,32,29,.34);color:#04201D}
.cta .btn-ghost:hover{border-color:#04201D;color:#04201D}

/* ---------- footer ---------- */

.site-footer{background:var(--bg-deep);border-top:1px solid var(--line-soft);padding:64px 0 34px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-top p{color:var(--mut);font-size:15px;max-width:38ch;margin-top:14px}
.site-footer h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mut);margin:0 0 16px;font-weight:600}
.site-footer li{margin-bottom:10px}
.site-footer li a{color:var(--txt);font-size:15px;transition:color .16s}
.site-footer li a:hover{color:var(--teal)}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding-top:24px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:var(--mut);font-size:14px;
}

/* ---------- pagina demo ---------- */

.demo-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:start}
.demo-frame{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.demo-bar{
  display:flex;align-items:center;gap:8px;padding:14px 18px;
  background:var(--surface-2);border-bottom:1px solid var(--line);
}
.demo-bar i{width:10px;height:10px;border-radius:50%;background:var(--line);display:block}
.demo-bar span{margin-left:10px;font-size:13px;color:var(--mut)}
.demo-body{padding:26px}
.demo-body img{border-radius:12px;border:1px solid var(--line)}

.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--txt)}
.field input,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--line);border-radius:11px;
  padding:13px 15px;color:var(--txt);font-family:inherit;font-size:15.5px;
  transition:border-color .16s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal)}
.field textarea{resize:vertical;min-height:104px}
.form .btn{width:100%;margin-top:8px}
.form-note{font-size:13.5px;color:var(--mut);margin-top:16px;line-height:1.6}

/* ---------- animazione di ingresso ---------- */

.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- responsive ---------- */

@media (max-width:1000px){
  .hero .container{grid-template-columns:1fr;gap:44px}
  .hero-art{max-width:520px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.plans,.steps-3{grid-template-columns:1fr}
  .flow-step{grid-template-columns:1fr;gap:32px;padding:44px 0}
  .flow-step:nth-child(even) .flow-art{order:0}
  .flow-art{max-width:520px}
  .demo-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .plan.featured{order:-1}
}

@media (max-width:760px){
  body{font-size:16px}
  section{padding:68px 0}
  .nav{
    display:none;position:absolute;top:76px;left:0;right:0;
    flex-direction:column;gap:0;background:var(--bg);
    border-bottom:1px solid var(--line);padding:10px 24px 22px;
  }
  .nav.open{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line-soft);font-size:16px}
  .nav a::after{display:none}
  .nav-toggle{display:block}
  .header-cta{display:none}
  .grid-2,.grid-4{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .cta{padding:48px 26px}
  .btn,.btn-lg{width:100%}
  .btn-group{flex-direction:column}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}