/* Home 3D EcoLive: prototipo. Palette e caratteri del sito del cliente. */
@font-face{font-family:"Bricolage Grotesque";font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/bricolage-grotesque-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-weight:400;font-style:normal;font-display:swap;src:url("../fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-weight:500;font-style:normal;font-display:swap;src:url("../fonts/inter-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/inter-latin-600-normal.woff2") format("woff2")}

:root{
  --inchiostro:#1D1D1F; --testo:#474747; --muted:#6E6E73; --muted-testo:#5E5E63; --superficie:#F5F5F7;
  --sabbia:#EDE6DB; --bordo:#D2D2D7; --marrone:#856A46; --taupe:#A0845C; --oro:#C9A86C; --salvia:#6B8F71;
  --raggio:10px; --testata:64px;
  --titoli:"Bricolage Grotesque",system-ui,sans-serif;
  --corpo:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:auto}
body{margin:0;background:var(--superficie);color:var(--testo);font:400 16px/1.5 var(--corpo);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--taupe);outline-offset:2px}

/* Salto per tastiera */
.salta{position:fixed;left:12px;top:-60px;z-index:100;background:var(--inchiostro);color:#fff;padding:10px 16px;border-radius:var(--raggio);font:600 14px var(--corpo);text-decoration:none}
.salta:focus{top:12px}

/* Testata */
.testata{position:fixed;inset:0 0 auto 0;height:var(--testata);z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px;background:rgba(245,245,247,.94);border-bottom:1px solid var(--bordo)}
.logo{display:block;line-height:0;border-radius:4px}
.logo img{height:34px;width:auto}

/* Bottoni */
.bottone{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:var(--raggio);border:1px solid transparent;font:600 15px/1 var(--corpo);text-decoration:none;cursor:pointer;transition:background-color .15s,border-color .15s,color .15s}
.bottone.primario{background:var(--marrone);color:#fff}
.bottone.primario:hover{background:var(--oro);color:var(--inchiostro)}
.bottone.secondario{background:transparent;color:var(--inchiostro);border-color:var(--taupe)}
.bottone.secondario:hover{border-color:var(--oro);background:rgba(201,168,108,.14)}
.bottone.compatto{min-height:40px;padding:0 16px;font-size:14px}
.bottone.grande{min-height:54px;padding:0 30px;font-size:17px}
.testuale{color:var(--inchiostro);font-weight:600;text-decoration:underline;text-decoration-color:var(--taupe);text-decoration-thickness:2px;text-underline-offset:4px}
.testuale:hover{text-decoration-color:var(--oro)}

/* Scena e tappe */
#scena{position:fixed;inset:0;width:100%;height:100%;display:none;z-index:0;touch-action:pan-y}
.is-3d #scena{display:block}
.tappa{position:relative;z-index:1}
.pannello{background:rgba(245,245,247,.94);border:1px solid var(--bordo);border-radius:var(--raggio);padding:24px;max-width:calc(34ch + 3rem)}
.pannello h1,.pannello h2{margin:0 0 12px;font:600 clamp(25px,2.3vw,31px)/1.05 var(--titoli);letter-spacing:-.02em;color:var(--inchiostro);text-wrap:balance}
.pannello p{margin:0 0 14px;font-size:15px;line-height:1.55;color:var(--testo)}
.pannello p:last-child{margin-bottom:0}
.pannello .nota{font-size:13px;color:var(--muted-testo);margin-top:14px}
.azioni{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.illustrativa{display:flex;align-items:center;gap:12px;margin:0 0 14px}
.illustrativa img{width:96px;height:64px;object-fit:cover;border-radius:6px;border:1px solid var(--bordo);background:var(--sabbia)}
.illustrativa figcaption{font-size:13px;color:var(--muted-testo)}

/* Senza 3D (o prima che parta): ogni sezione ha la sua immagine di fondo */
.tappa{min-height:100vh;display:flex;align-items:flex-end;padding:calc(var(--testata) + 24px) 32px 32px;background:var(--sabbia) center/cover no-repeat}
.is-3d .tappa{min-height:110vh;background:none;padding:0;display:block}
.is-3d .pannello{position:fixed;left:32px;bottom:32px;z-index:30;opacity:0;visibility:hidden;transition:opacity .18s ease,visibility 0s linear .18s}
.is-3d .tappa.attiva .pannello{opacity:1;visibility:visible;transition:opacity .18s ease,visibility 0s}

/* Indice delle tappe: colonna a destra (solo desktop con 3D) */
.indice{display:none}
.is-3d .indice{display:block;position:fixed;right:24px;top:50%;transform:translateY(-50%);z-index:40;background:rgba(245,245,247,.94);border:1px solid var(--bordo);border-radius:var(--raggio);padding:8px}
.indice ul{list-style:none;margin:0;padding:0}
.indice button{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px 8px 10px;background:none;border:0;border-radius:6px;font:500 14px/1.2 var(--corpo);color:var(--muted-testo);text-align:left;cursor:pointer}
.indice button::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:transparent}
.indice button:hover{color:var(--inchiostro)}
.indice button[aria-current="step"]{color:var(--inchiostro);font-weight:600}
.indice button[aria-current="step"]::before{background:var(--salvia)}

/* Barra di avanzamento (telefono) */
.avanzamento{display:none;position:fixed;left:0;right:0;top:var(--testata);height:3px;z-index:49;background:rgba(210,210,215,.85)}
.avanzamento span{display:block;height:100%;background:var(--taupe);transform-origin:0 50%;transform:scaleX(0)}


.is-3d.trascina{cursor:grab}
.is-3d.trascinando{cursor:grabbing;user-select:none}

@media (max-width:900px){
  :root{--testata:56px}
  .testata{padding:0 14px}
  .logo img{height:28px}
  .tappa{padding:calc(var(--testata) + 16px) 16px 16px}
  .is-3d .indice{display:none}
  .is-3d .avanzamento{display:block}
  .is-3d .pannello{left:0;right:0;bottom:0;max-width:none;max-height:38vh;max-height:38svh;overflow-y:auto;border-radius:var(--raggio) var(--raggio) 0 0;border-bottom:0;padding:18px 18px calc(18px + env(safe-area-inset-bottom))}
  .pannello h1,.pannello h2{font-size:24px;margin-bottom:8px}
  .pannello p{font-size:14px;line-height:1.5;margin-bottom:10px}
  .azioni{margin-top:12px}
  .bottone.grande{min-height:50px}
}
@media (max-width:420px){
  .testata .bottone.compatto{padding:0 12px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  .is-3d .pannello,.is-3d .tappa.attiva .pannello{transition:opacity .15s linear,visibility 0s}
  .bottone{transition:none}
}
.is-3d .tappa{touch-action:pan-y}
.nw{white-space:nowrap}