/* =====================================================================
   robertorocco.it — stile comune a tutte le pagine
   Layout: fondo notte con particelle blu, sezioni "pinned" guidate dallo scroll
   ===================================================================== */
:root{
  /* Colori del sito (blu originale preso dal vecchio style.css) */
  --blue:#1179ff;
  --blue-rgb:17,121,255;
  --blue-2:#44b8ff;
  --cyan:#7de8ff;
  --ink:#020816;          /* sfondo */
  --ink-2:#06142e;        /* superfici */
  --line:rgba(68,184,255,.18);
  --text:#f7fbff;
  --muted:#a9bad2;
  --ok:#3ddc97;
  --warn:#ffc04d;
  --bad:#ff5d6c;
  --f-display:"Unbounded","Arial Black",system-ui,sans-serif;
  --f-body:"Instrument Sans","Helvetica Neue",Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --gutter:max(20px,env(safe-area-inset-left,0px));
  --gutter-r:max(20px,env(safe-area-inset-right,0px));
  --max:1180px;
  color-scheme:dark;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--ink);color:var(--text);font-family:var(--f-body);font-size:17px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px solid var(--blue-2);outline-offset:3px;border-radius:6px}

.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter-r)}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue-2)}
h1,h2,h3{font-family:var(--f-display);font-weight:800;letter-spacing:-.02em;line-height:1.04;text-wrap:balance}
h2{font-size:clamp(32px,5.2vw,68px)}
.lead{font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:58ch}
section.block{padding-block:clamp(90px,13vw,170px)}
.stack{display:grid;gap:14px}

/* ---------- particelle ---------- */
#particles{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
main,header,footer{position:relative;z-index:1}

/* ---------- navigazione ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top,0px);transition:background .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.scrolled,.nav.solid{background:rgba(2,8,22,.74);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{width:42px;height:42px;object-fit:contain;filter:drop-shadow(0 0 14px rgba(var(--blue-rgb),.55))}
.brand b{font-family:var(--f-display);font-size:15px;font-weight:600;display:block;line-height:1.1;white-space:nowrap}
.brand small{font-family:var(--f-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.nav ul{display:flex;gap:26px;list-style:none;font-size:14px;align-items:center}
.nav ul a,.nav ul button{color:var(--muted);transition:color .2s;background:none;border:0;cursor:pointer;font-size:14px}
.nav ul a:hover,.nav ul button:hover,.nav ul a[aria-current="page"]{color:var(--text)}
.nav ul a[aria-current="page"]{box-shadow:0 2px 0 var(--blue)}
.nav .pill{border:1px solid rgba(var(--blue-rgb),.7)!important;color:var(--text)!important;padding:7px 14px;border-radius:99px;box-shadow:none!important}
.burger{display:none;background:none;border:0;color:var(--text);width:42px;height:42px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:currentColor;margin:5px auto}
@media (max-width:960px){
  .burger{display:block}
  .nav ul{position:fixed;inset:calc(70px + env(safe-area-inset-top,0px)) 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:rgba(2,8,22,.97);backdrop-filter:blur(18px);padding:8px var(--gutter-r) 20px var(--gutter);border-bottom:1px solid var(--line);transform:translateY(-12px);opacity:0;pointer-events:none;transition:.3s}
  .nav ul li a,.nav ul li button{display:block;width:100%;text-align:left;padding:14px 0;font-size:18px;border-bottom:1px solid var(--line);box-shadow:none!important}
  .nav.open ul{opacity:1;transform:none;pointer-events:auto}
  .nav .pill{border:0!important;padding:14px 0}
}

/* ---------- pulsanti ---------- */
.cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:99px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;color:var(--text);transition:transform .25s,box-shadow .25s,border-color .25s;background:none}
.btn-primary{background:linear-gradient(135deg,var(--blue),#004dff);color:#fff;box-shadow:0 10px 40px -10px rgba(var(--blue-rgb),.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 50px -10px rgba(var(--blue-rgb),1)}
.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:rgba(var(--blue-rgb),.8)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none!important}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:grid;align-items:center;padding-block:120px 90px;position:relative}
.hero h1{font-size:clamp(40px,7.6vw,112px)}
.hero h1 em{font-style:normal;color:var(--blue-2);text-shadow:0 0 50px rgba(var(--blue-rgb),.6)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint i{width:1px;height:42px;background:linear-gradient(var(--blue-2),transparent);animation:drip 2s infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- sezioni pinned (effetto Apple) ---------- */
.pin{position:relative}
.pin .stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;display:grid;place-items:center}
.js .pin.words{height:300vh}
.js .pin.zoom{height:280vh}
.statement{font-family:var(--f-display);font-weight:800;font-size:clamp(30px,6.4vw,96px);line-height:1.05;letter-spacing:-.03em;max-width:15ch}
.statement span{display:inline-block;margin-right:.22em;transition:color .15s linear}
.js .statement span{color:rgba(247,251,255,.12)}
.js .statement span.on{color:var(--text)}
.js .statement span.on.b{color:var(--blue-2);text-shadow:0 0 40px rgba(var(--blue-rgb),.6)}
.sign{margin-top:28px;font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.meter{position:absolute;bottom:40px;left:var(--gutter);right:var(--gutter-r);display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;color:var(--muted)}
.meter .bar{flex:1;margin:0 16px;align-self:center;height:2px;background:var(--line);position:relative;overflow:hidden}
.meter .bar i{position:absolute;inset:0;background:var(--blue);transform-origin:left;transform:scaleX(var(--p,1))}

.zoom .frame{position:absolute;inset:0}
.zoom .media{width:100%;height:100%;overflow:hidden;will-change:transform}
.zoom .media img{width:100%;height:100%;object-fit:cover}
.zoom .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,8,22,.12) 25%,rgba(2,8,22,.94))}
.zoom .copy{position:absolute;left:0;right:0;bottom:7vh}
.zoom .copy h2{margin:10px 0 16px}
.zoom .copy p{color:#d6e3fb;max-width:58ch;font-size:clamp(16px,1.4vw,19px)}

/* ---------- comparsa allo scroll ---------- */
.js .rv{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}

/* ---------- griglia a quattro con alone ---------- */
.quad{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden}
.quad article{background:var(--ink-2);padding:32px 26px 36px;display:grid;gap:12px;align-content:start;position:relative;min-width:0}
.quad article::after{content:"";position:absolute;inset:0;background:radial-gradient(380px circle at var(--mx,50%) var(--my,0%),rgba(var(--blue-rgb),.2),transparent 60%);opacity:0;transition:opacity .4s;pointer-events:none}
.quad article:hover::after{opacity:1}
.quad svg{width:36px;height:36px;stroke:var(--blue-2);fill:none;stroke-width:1.6}
.quad h3{font-size:20px;line-height:1.15}
.quad p{color:var(--muted);font-size:15px}
.quad .spec{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;color:var(--blue-2)}
@media (max-width:980px){.quad{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.quad{grid-template-columns:1fr}}

/* foto con parallasse */
.ph{border-radius:22px;overflow:hidden;position:relative;max-width:100%}
.ph img{width:100%;height:118%;object-fit:cover;will-change:transform}
.ph figcaption{position:absolute;left:16px;bottom:14px;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;background:rgba(2,8,22,.6);backdrop-filter:blur(8px);padding:6px 10px;border-radius:8px}

/* ---------- contatti e form ---------- */
.contact-card{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:40px;padding:clamp(26px,5vw,60px);border-radius:32px;background:radial-gradient(120% 140% at 0% 0%,rgba(var(--blue-rgb),.3),transparent 55%),var(--ink-2);border:1px solid var(--line)}
.contact-card dl{display:grid;gap:22px;align-content:center}
.contact-card dt{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.contact-card dd{font-size:clamp(17px,1.6vw,21px);font-weight:500;word-break:break-word}
.contact-card dd a:hover{color:var(--blue-2)}
@media (max-width:820px){.contact-card{grid-template-columns:1fr}}
.form{display:grid;gap:14px;margin-top:26px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:6px;min-width:0}
.field label{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea,.field select{width:100%;background:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--text);font-size:16px}
.field textarea{resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue-2);box-shadow:0 0 0 3px rgba(var(--blue-rgb),.25)}
.form .btn{justify-self:start}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.notice{margin-top:18px;padding:12px 16px;border-radius:12px;font-size:15px;border:1px solid var(--line)}
.notice.ok{border-color:rgba(var(--blue-rgb),.7);background:rgba(var(--blue-rgb),.14)}
.notice.err{border-color:rgba(255,93,108,.5);background:rgba(255,93,108,.1)}
@media (max-width:560px){.frow{grid-template-columns:1fr}.form .btn{justify-self:stretch;justify-content:center}}

/* ---------- footer ---------- */
footer.foot{padding-block:40px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer.foot .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
footer.foot nav{display:flex;flex-wrap:wrap;gap:20px}
footer.foot a:hover{color:var(--text)}
footer.foot .brand img{width:34px;height:34px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none;transition:none}
  .js .pin.words,.js .pin.zoom{height:auto}
  .pin .stage{position:relative;height:auto;min-height:100vh}
  .js .statement span{color:var(--text)}
  .scroll-hint i{animation:none}
}