/* ============================================================
   Granitto Group — landing
   Palette derivata dal marchio: blu petrolio + arancio
   ============================================================ */

:root{
  --navy:#1D4C66;
  --navy-deep:#123549;
  --navy-soft:#38708E;
  --orange:#DC4310;
  --orange-soft:#F4753F;

  --ink:#12242F;
  --muted:#5D7382;
  --line:rgba(29,76,102,.14);
  --paper:#F5F3F0;
  --paper-2:#EDEAE5;
  --card:#FFFFFF;

  --r-sm:12px;
  --r-md:18px;
  --r-lg:26px;
  --shadow-1:0 1px 2px rgba(18,36,47,.05), 0 8px 24px -12px rgba(18,36,47,.18);
  --shadow-2:0 24px 60px -28px rgba(18,53,73,.45), 0 4px 14px -6px rgba(18,53,73,.14);

  --wrap:1180px;
  --ease:cubic-bezier(.22,.9,.28,1);

  --font:"Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

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

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  /* Firefox */
  scrollbar-width:thin;
  scrollbar-color:rgba(29,76,102,.34) transparent;
}

/* ── barra di scorrimento in tinta col marchio (Chrome, Edge, Safari) ── */
::-webkit-scrollbar{width:13px;height:13px}
::-webkit-scrollbar-track{background:var(--paper-2)}
::-webkit-scrollbar-thumb{
  background:rgba(29,76,102,.34);
  border-radius:999px;
  /* il bordo del colore della pagina assottiglia il cursore senza
     restringere l area cliccabile */
  border:3.5px solid var(--paper-2);
  background-clip:padding-box;
  transition:background .25s ease;
}
::-webkit-scrollbar-thumb:hover{
  background:rgba(29,76,102,.62);
  border:3.5px solid var(--paper-2);
  background-clip:padding-box;
}
::-webkit-scrollbar-thumb:active{
  background:var(--orange);
  border:3.5px solid var(--paper-2);
  background-clip:padding-box;
}
::-webkit-scrollbar-corner{background:var(--paper-2)}

body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3{margin:0;line-height:1.08;letter-spacing:-.025em;font-weight:800}

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

.skip-link{
  position:fixed;top:-100px;left:16px;z-index:200;
  background:var(--navy);color:#fff;padding:12px 18px;border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:top .25s var(--ease);
}
.skip-link:focus-visible{top:0}

:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:6px}

/* ── sfondo animato ─────────────────────────────────────────── */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--paper)}

.bg__grid{
  position:absolute;inset:-2px;
  background-image:
    linear-gradient(to right, rgba(29,76,102,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29,76,102,.055) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
}

.bg__orb{
  position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;
  will-change:transform;
}
.bg__orb--a{
  width:46vw;height:46vw;min-width:380px;min-height:380px;
  top:-14vw;left:-10vw;
  background:radial-gradient(circle at 35% 35%, rgba(56,112,142,.55), rgba(56,112,142,0) 70%);
  animation:drift-a 26s var(--ease) infinite alternate;
}
.bg__orb--b{
  width:38vw;height:38vw;min-width:320px;min-height:320px;
  top:6vw;right:-12vw;
  background:radial-gradient(circle at 60% 40%, rgba(220,67,16,.34), rgba(220,67,16,0) 70%);
  animation:drift-b 32s var(--ease) infinite alternate;
}
.bg__orb--c{
  width:52vw;height:52vw;min-width:420px;min-height:420px;
  top:78vh;left:38%;
  background:radial-gradient(circle at 50% 50%, rgba(29,76,102,.22), rgba(29,76,102,0) 70%);
  animation:drift-a 38s var(--ease) infinite alternate-reverse;
}

@keyframes drift-a{
  from{transform:translate3d(0,0,0) scale(1)}
  to{transform:translate3d(7vw,5vw,0) scale(1.16)}
}
@keyframes drift-b{
  from{transform:translate3d(0,0,0) scale(1.1)}
  to{transform:translate3d(-6vw,7vw,0) scale(.92)}
}

/* ── topbar ─────────────────────────────────────────────────── */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px max(24px, calc((100vw - var(--wrap)) / 2 + 24px));
  transition:background .4s var(--ease), box-shadow .4s var(--ease), padding .4s var(--ease);
}
.topbar.is-stuck{
  padding-block:12px;
  background:rgba(245,243,240,.95);
  box-shadow:0 1px 0 var(--line), 0 10px 30px -22px rgba(18,53,73,.5);
}

.topbar__brand{display:inline-flex;align-items:center}
.topbar__brand img{
  width:124px;height:auto;
  transition:width .4s var(--ease), opacity .3s var(--ease);
}
.topbar__brand:hover img{opacity:.72}
.topbar.is-stuck .topbar__brand img{width:108px}

.topbar__nav{display:flex;align-items:center;gap:6px}
.topbar__nav > a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--navy-deep);
  transition:color .25s var(--ease), background .25s var(--ease);
}
.topbar__nav > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:1.5px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease);
}
.topbar__nav > a:hover::after{transform:scaleX(1)}
.topbar__nav > a:hover{color:var(--navy)}

.lang{
  display:inline-flex;align-items:center;gap:2px;margin-left:8px;
  border:1px solid var(--line);background:rgba(255,255,255,.6);
  border-radius:999px;padding:3px;
  transition:border-color .25s var(--ease), background .25s var(--ease);
}
.lang:hover{border-color:rgba(29,76,102,.32);background:#fff}
.lang__opt{
  border:0;background:transparent;cursor:pointer;
  padding:5px 10px;border-radius:999px;
  font-family:inherit;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  color:var(--muted);
  transition:color .25s var(--ease), background .25s var(--ease);
}
.lang__opt:hover{color:var(--navy)}
.lang__opt.is-on{color:#fff;background:var(--navy)}

/* ── hero ───────────────────────────────────────────────────── */
.hero{
  position:relative;
  min-height:88svh;
  display:flex;align-items:center;justify-content:center;
  padding:96px 0 40px;
  text-align:center;
}
.hero__inner{display:flex;flex-direction:column;align-items:center}

.hero__logo{width:min(440px, 76vw);margin-bottom:30px}
.hero__logo img{width:100%;height:auto}

.hero__title{
  font-size:clamp(1.9rem, 4vw, 3rem);
  max-width:18ch;
  margin-bottom:6px;
  color:var(--navy-deep);
}
.hero__title .line{display:block;overflow:hidden;padding-bottom:.08em}
.hero__title .word{display:inline-block}
.word--accent{
  background:linear-gradient(100deg, var(--orange) 0%, var(--orange-soft) 55%, var(--orange) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:220% 100%;
  animation:sheen 7s ease-in-out infinite;
}
@keyframes sheen{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

.hero__wave{
  width:min(300px, 56vw);height:auto;margin:10px 0 22px;color:var(--navy-soft);
}
.hero__wave-path{
  stroke-dasharray:640;stroke-dashoffset:640;
  animation:draw 2.2s var(--ease) .6s forwards, bob 6s ease-in-out 3s infinite;
}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.hero__wave-dot{
  fill:var(--orange);opacity:0;
  animation:pop .5s var(--ease) 2.3s forwards;
  transform-box:fill-box;transform-origin:center;
}
@keyframes pop{from{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}

.hero__lead{
  max-width:60ch;margin:0 0 30px;
  font-size:clamp(1rem, 1.5vw, 1.16rem);color:var(--muted);
}

.hero__cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:-.01em;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn svg{width:17px;height:17px;transition:transform .35s var(--ease)}
.btn--primary{
  background:linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  color:#fff;box-shadow:0 14px 30px -14px rgba(18,53,73,.75);
}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 22px 44px -16px rgba(18,53,73,.75)}
.btn--primary:hover svg{transform:translateY(4px)}
.btn--ghost{border:1px solid var(--line);color:var(--navy-deep);background:rgba(255,255,255,.5)}
.btn--ghost:hover{background:#fff;border-color:rgba(29,76,102,.34);transform:translateY(-3px)}

/* ── intestazioni di sezione ────────────────────────────────── */
.sec-head{max-width:62ch;margin:0 0 56px}
.sec-head__kicker{
  margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--orange);
}
.sec-head__title{font-size:clamp(1.85rem, 3.6vw, 2.9rem);color:var(--navy-deep)}
.sec-head__sub{margin:16px 0 0;color:var(--muted);font-size:1.03rem}

/* ── griglia aziende ────────────────────────────────────────── */
.brands{padding:16px 0 24px;position:relative}

.grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:24px;
}

.card{
  position:relative;isolation:isolate;overflow:hidden;
  display:flex;flex-direction:column;
  padding:30px 30px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  /* solo traslazione 2D: una trasformazione 3D farebbe ricampionare il
     testo dal browser, con quel filo di sfocatura all’hover */
  transform:translateY(0);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
.card > *{position:relative;z-index:1}
.card::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(120% 90% at 50% -20%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%);
  opacity:0;transition:opacity .5s var(--ease);
}
.card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 30%, #fff));
  transform:scaleX(0);transform-origin:left;
  transition:transform .55s var(--ease);
}
.card:hover,.card:focus-visible{
  transform:translateY(-8px);
  box-shadow:var(--shadow-2);
  border-color:color-mix(in srgb, var(--accent) 34%, var(--line));
}
.card:hover::before{opacity:1}
.card:hover::after{transform:scaleX(1)}

.card__sector{
  align-self:flex-start;
  padding:5px 12px;border-radius:999px;
  background:color-mix(in srgb, var(--accent) 12%, transparent);
  color:color-mix(in srgb, var(--accent) 78%, #33241c);
  font-size:11.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
}

.card__logo{
  display:flex;align-items:center;
  height:74px;margin:26px 0 22px;
}
.card__logo img{
  max-height:100%;width:auto;max-width:78%;object-fit:contain;
  /* niente scale all’hover: ingrandire un’immagine la interpola
     e la fa apparire sfocata. Solo un lieve sollevamento. */
  transition:transform .4s var(--ease);
}
.card:hover .card__logo img{transform:translateY(-2px)}

.card__name{
  font-size:1.42rem;font-weight:700;color:var(--navy-deep);margin-bottom:10px;
}
.card__desc{margin:0 0 20px;color:var(--muted);font-size:.95rem;flex:1}

.card__tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:22px}
.card__tags li{
  padding:5px 11px;border-radius:8px;
  background:var(--paper-2);color:var(--navy);
  font-size:11.5px;font-weight:600;
  transition:background .4s var(--ease), color .4s var(--ease);
}
.card:hover .card__tags li{
  background:color-mix(in srgb, var(--accent) 10%, var(--paper-2));
}

.card__go{
  display:inline-flex;align-items:center;gap:9px;
  padding-top:18px;border-top:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--navy);
  transition:color .35s var(--ease), gap .35s var(--ease);
}
.card__go svg{
  width:16px;height:16px;flex:none;
  transition:transform .4s var(--ease);
}
.card:hover .card__go{color:color-mix(in srgb, var(--accent) 72%, var(--navy-deep));gap:13px}
.card:hover .card__go svg{transform:translateX(4px)}

/* ── il gruppo ──────────────────────────────────────────────── */
.group{padding:56px 0 0;position:relative}
.group__inner{
  display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:center;
  padding:52px;border-radius:var(--r-lg);
  background:linear-gradient(140deg, var(--navy-deep) 0%, var(--navy) 58%, #23617f 100%);
  color:#fff;
  box-shadow:0 40px 80px -50px rgba(18,53,73,.9);
  overflow:hidden;position:relative;
}
.group__inner::before{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle, rgba(220,67,16,.4), transparent 65%);
  filter:blur(20px);
  animation:drift-b 24s var(--ease) infinite alternate;
}
.group__inner > *{position:relative;z-index:1}
.group .sec-head__kicker{color:var(--orange-soft)}
.group__title{font-size:clamp(1.6rem, 3vw, 2.35rem);margin-bottom:18px}
.group__body{margin:0;color:rgba(255,255,255,.76);font-size:1.02rem;max-width:56ch}

.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.facts li{
  padding:20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  transition:transform .4s var(--ease), background .4s var(--ease);
}
.facts li:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
.facts strong{
  display:block;font-size:2.15rem;line-height:1;
  font-weight:800;letter-spacing:-.03em;
  color:#fff;margin-bottom:6px;
}
.facts span{font-size:12.5px;color:rgba(255,255,255,.66);letter-spacing:.02em}

/* ── footer ─────────────────────────────────────────────────── */
.foot{padding:64px 0 34px}
.foot__inner{
  display:flex;flex-wrap:wrap;gap:32px clamp(32px, 5vw, 72px);
  justify-content:space-between;align-items:center;
  padding-bottom:30px;border-bottom:1px solid var(--line);
}
.foot__brand{max-width:280px}
.foot__logo{display:inline-block;transition:opacity .3s var(--ease)}
.foot__logo:hover{opacity:.75}
.foot__brand img{width:180px}
.foot__tag{margin:14px 0 0;font-size:13.5px;color:var(--muted);line-height:1.55}

.foot__links{display:flex;flex-wrap:wrap;gap:10px clamp(20px, 2.4vw, 32px);align-items:center}
.foot__links a{
  position:relative;display:inline-flex;align-items:center;gap:5px;
  padding-bottom:3px;
  font-size:14px;color:var(--navy-deep);font-weight:500;white-space:nowrap;
  transition:color .3s var(--ease);
}
.foot__links a svg{
  width:12px;height:12px;flex:none;opacity:.45;
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.foot__links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;
  background:var(--orange);transform:scaleX(0);transform-origin:right;
  transition:transform .35s var(--ease);
}
.foot__links a:hover{color:var(--orange)}
.foot__links a:hover svg{opacity:1;transform:translate(1px,-1px)}
.foot__links a:hover::after{transform:scaleX(1);transform-origin:left}

.foot__legal{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;font-size:12.5px;color:var(--muted);
}
.foot__legal p{margin:0}

/* ── animazioni di comparsa ─────────────────────────────────── */
.reveal{
  opacity:0;transform:translateY(22px);
  transition:opacity .55s var(--ease), transform .55s var(--ease);
  transition-delay:calc(var(--d, 0) * 55ms);
  will-change:opacity, transform;
}
.reveal.is-in{opacity:1;transform:none}
.hero__title .word.reveal{transform:translateY(105%)}
.hero__title .word.reveal.is-in{transform:none}

/* ── responsive ─────────────────────────────────────────────── */
@media (max-width:960px){
  .group__inner{grid-template-columns:1fr;gap:36px;padding:36px}
}
@media (max-width:760px){
  .topbar__nav > a{display:none}
  .hero{padding:104px 0 56px}
  .hero__logo{margin-bottom:26px}
  .grid{grid-template-columns:1fr}
  .card{padding:26px 22px 22px}
  .facts{grid-template-columns:repeat(2,1fr);gap:12px}
  .facts strong{font-size:1.9rem}
  .foot__inner{flex-direction:column;align-items:flex-start;gap:28px}
  .foot__links{flex-direction:column;align-items:flex-start;gap:11px}
}
@media (max-width:420px){
  .hero__title{font-size:2.05rem}
  .card__logo{height:60px}
}

/* ── rispetto delle preferenze di movimento ─────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
  .hero__wave-path{stroke-dashoffset:0}
  .hero__wave-dot{opacity:1}
}