/* Janna Lab · effetti grafici della home (vedi effetti.js) */

/* ---------- circuito sullo sfondo ---------- */
.fx-tela{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none;opacity:0;transition:opacity .8s ease}
.fx-circuito .fx-tela{opacity:1}
/* il contenuto sta sopra al circuito; gli sfondi delle sezioni diventano un po' trasparenti per lasciarlo intravedere */
.fx-circuito body>header,.fx-circuito body>main,.fx-circuito body>footer{position:relative;z-index:1}
.fx-circuito .nav{z-index:40}
.fx-circuito .hero{background:radial-gradient(800px 420px at 80% 20%,rgba(13,58,99,.9) 0,transparent 60%),linear-gradient(180deg,rgba(8,33,61,.5),rgba(4,16,31,.4))}
.fx-circuito .catalogo{background:rgba(4,16,31,.62)}
.fx-circuito .legenda{background:rgba(5,9,15,.6)}
.fx-circuito .chi{background:rgba(4,16,31,.66)}

/* ---------- HUD nella hero ---------- */
.hud-strato{position:absolute;inset:0;pointer-events:none;z-index:0;opacity:0;transition:opacity .8s ease;color:var(--ciano)}
.hud-strato .h-anello,.hud-strato .h-barre,.hud-strato .h-bin,.hud-strato .h-linea,.hud-strato .h-perc{position:absolute}
.hud-strato .h-anello{width:150px;height:150px;left:max(8px,calc(50% - 640px));top:18px;opacity:.5}
.hud-strato .h-anello circle{fill:none;stroke:currentColor;stroke-width:1.2;transform-origin:60px 60px}
.hud-strato .a1{stroke-dasharray:3 6;opacity:.6;animation:h-giro 40s linear infinite}
.hud-strato .a2{stroke-dasharray:60 30 10 30;opacity:.8;animation:h-giro 14s linear infinite reverse}
.hud-strato .a3{stroke-dasharray:120 80;stroke-width:2.5;animation:h-giro 9s linear infinite}
.hud-strato .a4{fill:currentColor}
@keyframes h-giro{to{transform:rotate(1turn)}}
.hud-strato .h-barre{display:flex;align-items:flex-end;gap:5px;height:56px;right:max(8px,calc(50% - 650px));bottom:36px;opacity:.45}
.hud-strato .h-barre i{width:7px;height:100%;background:linear-gradient(0deg,rgba(76,195,255,.9),rgba(76,195,255,.25));transform-origin:50% 100%;animation:h-barra 2.6s ease-in-out infinite alternate;animation-delay:var(--d)}
@keyframes h-barra{from{transform:scaleY(.2)}to{transform:scaleY(1)}}
.hud-strato .h-bin{margin:0;left:max(8px,calc(50% - 650px));bottom:14px;height:150px;overflow:hidden;font:11px/1.35 ui-monospace,Consolas,monospace;color:rgba(127,211,255,.35);
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);animation:h-scorre 18s linear infinite}
@keyframes h-scorre{from{text-indent:0;transform:translateY(0)}to{transform:translateY(-40px)}}
.hud-strato .h-linea{width:210px;height:64px;left:calc(50% - 60px);top:22px;opacity:.45}
.hud-strato .h-linea polyline{fill:none;stroke:currentColor;stroke-width:1.6;stroke-dasharray:420;stroke-dashoffset:420;animation:h-traccia 6s ease-in-out infinite}
.hud-strato .h-linea .griglia{stroke:rgba(76,195,255,.3);stroke-width:.6;stroke-dasharray:2 4}
@keyframes h-traccia{0%{stroke-dashoffset:420}45%,70%{stroke-dashoffset:0}100%{stroke-dashoffset:-420}}
.hud-strato .h-perc{right:max(12px,calc(50% - 630px));top:26px;text-align:right;opacity:.5;font-family:var(--display)}
.hud-strato .h-perc b{display:block;font-size:22px;font-weight:600;color:var(--luce)}
.hud-strato .h-perc span{font-size:10.5px;letter-spacing:.3em;color:var(--muted)}
.fx-hud .hud-strato{opacity:1}
.hero>.wrap{position:relative;z-index:1}
@media (max-width:980px){.hud-strato .h-linea,.hud-strato .h-perc,.hud-strato .h-barre{display:none}.hud-strato .h-anello{width:96px;height:96px;opacity:.35}}

/* ---------- colori per area ---------- */
.card{--acc:var(--ciano);--acc-rgb:76,195,255}
.fx-aree .card[data-area="rete"]{--acc:#4cc3ff;--acc-rgb:76,195,255}
.fx-aree .card[data-area="prod"]{--acc:#c38bff;--acc-rgb:195,139,255}
.fx-aree .card{border-top:2px solid rgba(var(--acc-rgb),.55)}
.fx-aree .card:hover,.fx-aree .card:focus-within{border-color:var(--acc);box-shadow:0 0 30px rgba(var(--acc-rgb),.22)}
.fx-aree .card .tag{border-color:rgba(var(--acc-rgb),.45)}
.fx-aree .card[data-ai] .ai-badge{background:linear-gradient(90deg,#4cc3ff,#c38bff);color:#0a0620}
.fx-aree .card[data-ai] .tag.ai{background:linear-gradient(90deg,rgba(76,195,255,.22),rgba(195,139,255,.22));border-color:rgba(195,139,255,.6)}
.fx-aree .card .foot .prev{border-color:rgba(var(--acc-rgb),.5);background:rgba(var(--acc-rgb),.1)}
.fx-aree .card .art:not(.foto)::after{content:"";position:absolute;inset:0;background:radial-gradient(260px 140px at 70% 100%,rgba(var(--acc-rgb),.25),transparent 70%);pointer-events:none}

/* ---------- luce che segue il mouse + inclinazione 3D ---------- */
.fx-luce .grid{perspective:1100px}
.fx-luce .card{transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .25s ease,border-color .15s,box-shadow .15s}
.fx-luce .card:hover{transform:translateY(-3px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg))}
.fx-luce .card::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:1;opacity:0;transition:opacity .25s;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(var(--acc-rgb),.16),transparent 60%)}
.fx-luce .card:hover::after{opacity:1}

/* ---------- comparsa delle sezioni ---------- */
.fx-comparsa .fx-entra{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
.fx-comparsa .fx-entra.fx-visto{opacity:1;transform:none}

/* ---------- pannello di prova ---------- */
.fx-pannello{position:fixed;left:16px;max-width:calc(100vw - 32px);bottom:calc(64px + env(safe-area-inset-bottom,0px));z-index:90;display:flex;flex-direction:column;gap:6px;padding:12px 14px;border-radius:12px;
  background:rgba(4,16,31,.9);border:1px solid rgba(76,195,255,.4);backdrop-filter:blur(8px);font:14px var(--corpo);color:var(--luce);box-shadow:0 0 30px rgba(76,195,255,.2)}
.fx-pannello b{font:600 12px var(--display);letter-spacing:.18em;text-transform:uppercase;color:var(--ciano);margin-bottom:2px}
.fx-pannello label{display:flex;gap:8px;align-items:center;cursor:pointer}
.fx-pannello input{accent-color:#4cc3ff}
.fx-pannello button{margin-top:4px;font:600 12px var(--display);padding:5px 10px;border-radius:999px;border:1px solid rgba(76,195,255,.4);background:none;color:var(--muted);cursor:pointer}

@media (prefers-reduced-motion:reduce){
  .hud-strato *{animation:none!important}
  .fx-luce .card{transform:none!important}
  .fx-comparsa .fx-entra{opacity:1;transform:none}
}

/* ---------- palette alternative (in prova): cambiano i colori guida del sito ---------- */
:root[data-palette="aurora"]:not([data-tema]){--ciano:#3ee6c0;--luce:#c9fff1;--ciano-forte:#7ff2d6;--muted:#93c9bc;--linea:rgba(62,230,192,.16);--linea-forte:rgba(62,230,192,.4);--accento2:#b28bff;--accento2-rgb:178,139,255}
:root[data-palette="solare"]:not([data-tema]){--ciano:#ffb547;--luce:#ffe6c2;--ciano-forte:#ffc97a;--muted:#d1b590;--linea:rgba(255,181,71,.16);--linea-forte:rgba(255,181,71,.42);--accento2:#4cc3ff;--accento2-rgb:76,195,255}
:root[data-palette="plasma"]:not([data-tema]){--ciano:#ff5fd2;--luce:#ffd6f4;--ciano-forte:#ff8fe0;--muted:#c9a3c0;--linea:rgba(255,95,210,.16);--linea-forte:rgba(255,95,210,.42);--accento2:#4cc3ff;--accento2-rgb:76,195,255}
:root[data-palette="artico"]:not([data-tema]){--ciano:#9fd8ff;--luce:#eef8ff;--ciano-forte:#c7e9ff;--muted:#a4b8c8;--linea:rgba(159,216,255,.16);--linea-forte:rgba(159,216,255,.42);--accento2:#ff8a5c;--accento2-rgb:255,138,92}
.fx-pannello .fx-pal{margin-top:4px;flex-wrap:wrap}
.fx-pannello select{font:13px var(--corpo);background:#061426;color:var(--luce);border:1px solid var(--linea-forte);border-radius:6px;padding:3px 6px}
.fx-pannello[hidden]{display:none}
.fx-pannello small{font-size:12px;color:var(--muted)}
.fx-pannello .fx-azioni{display:flex;gap:8px}
.fx-pannello button:hover,.fx-apri:hover{color:var(--ciano);border-color:var(--ciano)}
.fx-apri{position:fixed;left:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:90;display:flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  border:1px solid rgba(76,195,255,.4);background:rgba(4,16,31,.85);backdrop-filter:blur(8px);color:var(--luce);font:600 12px var(--display);letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.fx-apri span{font-size:15px;color:var(--ciano)}
.fx-apri[aria-expanded="true"]{border-color:var(--ciano);box-shadow:0 0 18px rgba(76,195,255,.3)}
@media print{.fx-apri,.fx-pannello{display:none}}