/* ==========================================================================
   AVAM S.r.l. — Design system
   Palette: quasi nero, grigio acciaio, un solo accento arancio laser.
   ========================================================================== */

:root {
  --bg: #0b0b0c;
  --bg-2: #111113;
  --bg-3: #17181b;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.16);
  --text: #ecedef;
  --muted: #9a9fa8;
  --steel: #8a9099;
  --steel-2: #c4c8cf;
  --accent: #ff5a1f;
  --accent-soft: rgba(255, 90, 31, 0.14);

  --font-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --gutter: 16px;
  --max: 1320px;
  --radius: 4px;
  --nav-h: 64px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (min-width: 768px) {
  :root { --gutter: 32px; --nav-h: 76px; }
}
@media (min-width: 1200px) {
  :root { --gutter: 48px; }
}

/* ---------- Reset essenziale ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
::selection { background: var(--accent); color: #fff; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px;
  background: var(--accent); color: #fff; transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

/* ---------- Tipografia ---------- */
.display, h1, h2, h3 {
  font-family: var(--font-display);
  font-stretch: 72%;
  font-variation-settings: "wdth" 72;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.95;
  margin: 0;
  text-transform: none;
}
h1, .h1 { font-size: clamp(2.8rem, 11vw, 8.5rem); }
h2, .h2 { font-size: clamp(2.2rem, 7vw, 5.4rem); }
h3, .h3 { font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.05; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--steel-2); max-width: 40em; }
.muted { color: var(--muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--steel);
  margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--accent); }
.accent { color: var(--accent); }
.tbc {
  /* Dato da confermare: evidenziato ma sobrio */
  font-family: var(--font-body); font-size: 0.7em; font-weight: 600; letter-spacing: 0.04em;
  color: var(--accent); border: 1px dashed rgba(255, 90, 31, 0.5); padding: 0.1em 0.4em;
  border-radius: 3px; white-space: nowrap; vertical-align: middle;
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(80px, 14vw, 180px) 0; position: relative; }
.section--tight { padding: clamp(60px, 9vw, 110px) 0; }
.section-head { display: grid; gap: 24px; margin-bottom: clamp(40px, 6vw, 80px); }
@media (min-width: 960px) {
  .section-head { grid-template-columns: 1.2fr 1fr; align-items: end; }
  .section-head .lead { justify-self: end; }
}
.divider { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---------- Bottoni ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px; padding: 0 26px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.01em;
  border: 1px solid var(--line-2); color: var(--text);
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease), transform 0.35s var(--ease);
}
.btn:hover { border-color: var(--text); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--primary:hover { background: #ff6d38; border-color: #ff6d38; }
.btn .arrow { width: 18px; height: 18px; transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--sm { min-height: 40px; padding: 0 18px; font-size: 0.85rem; }

/* ---------- Navigazione ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(11, 11, 12, 0.72);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: baseline; gap: 10px; }
.logo__mark {
  font-family: var(--font-display); font-variation-settings: "wdth" 62; font-stretch: 62%;
  font-weight: 900; font-size: 1.7rem; letter-spacing: 0.02em; line-height: 1;
}
.logo__mark span { color: var(--accent); }
.logo__sub { display: none; font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
@media (min-width: 1100px) { .logo__sub { display: inline; } }

.nav__links { display: none; align-items: center; gap: 32px; list-style: none; margin: 0; padding: 0; }
.nav__links a:not(.btn) {
  font-size: 0.9rem; color: var(--steel-2); position: relative; padding: 6px 0;
  transition: color 0.3s var(--ease);
}
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease);
}
.nav__links a:not(.btn):hover, .nav__links a[aria-current="page"] { color: var(--text); }
.nav__links a:not(.btn):hover::after, .nav__links a[aria-current="page"]::after { transform: scaleX(1); }

.nav__toggle { width: 44px; height: 44px; display: grid; place-items: center; margin-right: -10px; }
@media (min-width: 900px) { .nav__links { display: flex; } .nav__toggle { display: none; } }
.nav__toggle-lines span { display: block; width: 22px; height: 1.5px; background: var(--text); transition: transform 0.4s var(--ease); }
.nav__toggle-lines span + span { margin-top: 6px; }
.nav__toggle-lines { display: block; }
body.menu-open .nav__toggle-lines span:first-child { transform: translateY(3.75px) rotate(45deg); }
body.menu-open .nav__toggle-lines span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 90; background: var(--bg);
  display: flex; flex-direction: column; justify-content: center; padding: var(--nav-h) var(--gutter) 40px;
  opacity: 0; visibility: hidden; transition: opacity 0.4s var(--ease), visibility 0.4s;
}
body.menu-open .mobile-menu { opacity: 1; visibility: visible; }
body.menu-open { overflow: hidden; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; }
.mobile-menu li a {
  display: block; padding: 10px 0; font-family: var(--font-display); font-variation-settings: "wdth" 72;
  font-stretch: 72%; font-weight: 800; font-size: clamp(2.4rem, 12vw, 4rem); line-height: 1.05;
  border-bottom: 1px solid var(--line);
}
.mobile-menu__foot { margin-top: 32px; color: var(--muted); font-size: 0.9rem; }

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 500; background: var(--bg);
  display: grid; place-items: center;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
}
.loader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader__inner { width: min(280px, 70vw); text-align: center; }
.loader__logo {
  font-family: var(--font-display); font-variation-settings: "wdth" 62; font-stretch: 62%;
  font-weight: 900; font-size: 4.5rem; line-height: 1; letter-spacing: 0.04em;
}
.loader__logo span { color: var(--accent); }
.loader__bar { margin-top: 26px; height: 1px; background: var(--line-2); overflow: hidden; }
.loader__bar i {
  display: block; height: 100%; width: 100%; background: var(--accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s linear;
  box-shadow: 0 0 12px var(--accent);
}
.loader__meta {
  margin-top: 14px; display: flex; justify-content: space-between;
  font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.no-js .loader { display: none; }

/* ---------- Segnaposto media ----------
   Ogni elemento .media mostra un gradiente animato + etichetta finché il file
   reale non viene caricato. Quando il file esiste, js/main.js lo inserisce e
   aggiunge .is-loaded. */
.media {
  position: relative; overflow: hidden; background: var(--bg-3);
  isolation: isolate;
}
.media::before {
  content: ""; position: absolute; inset: -50%; z-index: 0;
  background:
    radial-gradient(40% 30% at 30% 35%, rgba(196, 200, 207, 0.10), transparent 70%),
    radial-gradient(35% 30% at 70% 70%, rgba(255, 90, 31, 0.07), transparent 70%),
    linear-gradient(135deg, #141518 0%, #1c1e22 45%, #121315 100%);
  animation: media-drift 14s var(--ease) infinite alternate;
}
.media::after {
  content: attr(data-label);
  position: absolute; left: 14px; bottom: 12px; z-index: 1;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.68rem; letter-spacing: 0.08em; color: rgba(236, 237, 239, 0.45);
  text-transform: uppercase; pointer-events: none;
}
.media .media__grid {
  position: absolute; inset: 0; z-index: 0; opacity: 0.35;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 70% at 50% 50%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 50%, #000 30%, transparent 100%);
}
.media > img, .media > video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 2;
  opacity: 0; transition: opacity 0.8s var(--ease);
}
.media.is-loaded > img, .media.is-loaded > video { opacity: 1; }
.media.is-loaded::after, .media.is-loaded::before, .media.is-loaded .media__grid { display: none; }
@keyframes media-drift {
  from { transform: translate3d(-4%, -2%, 0) rotate(0deg); }
  to { transform: translate3d(4%, 3%, 0) rotate(6deg); }
}

/* ---------- Hero con sequenza di frame ---------- */
.hero { position: relative; height: 520vh; background: var(--bg); }
@media (max-width: 767px) { .hero { height: 420vh; } }
.hero__sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__canvas--3d { opacity: 0; transition: opacity 1.2s var(--ease); }
.hero__canvas--3d.is-ready { opacity: 1; }
.hero__sticky::after {
  /* Uscita in profondità: il capitolo si scurisce mentre la camera spinge avanti */
  content: ""; position: absolute; inset: 0; z-index: 4; pointer-events: none;
  background: var(--bg); opacity: var(--exit, 0);
}
.hero__step { will-change: opacity, transform; }
/* prefers-reduced-motion: un frame fisso e i testi in colonna */
.hero--reduced { height: auto; }
.hero--reduced .hero__sticky { position: relative; height: auto; min-height: 100svh; }
.hero--reduced .hero__canvas { position: absolute; height: 100svh; opacity: 0.5; }
.hero--reduced .hero__shade { height: 100svh; }
.hero--reduced .hero__sticky::after { display: none; }
.hero--reduced .hero__copy { position: relative; padding: calc(var(--nav-h) + 40px) 0 80px; display: grid; gap: 56px; }
.hero--reduced .hero__step { position: relative; bottom: auto; opacity: 1 !important; visibility: visible !important; transform: none !important; }
.hero--reduced .hero__step h1, .hero--reduced .hero__step h2 { font-size: clamp(2.4rem, 8vw, 6rem); }
.hero--reduced .hero__progress, .hero--reduced .hero__scroll { display: none; }
.hero__shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(11, 11, 12, 0.55) 0%, rgba(11, 11, 12, 0.2) 45%, transparent 65%),
    linear-gradient(180deg, rgba(11, 11, 12, 0.55) 0%, transparent 28%, transparent 60%, rgba(11, 11, 12, 0.9) 100%),
    radial-gradient(120% 90% at 50% 50%, transparent 55%, rgba(11, 11, 12, 0.6) 100%);
}
.hero__label {
  position: absolute; right: var(--gutter); top: calc(var(--nav-h) + 8px); z-index: 3;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.66rem; letter-spacing: 0.08em;
  color: rgba(236, 237, 239, 0.4); text-transform: uppercase;
}
.hero__copy { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.hero__step {
  position: absolute; left: 0; right: 0; bottom: clamp(90px, 16vh, 180px);
  opacity: 0; visibility: hidden;
}
.hero__step:first-child { opacity: 1; visibility: visible; }
.no-js .hero__step { position: relative; opacity: 1; visibility: visible; }
.no-js .hero { height: auto; }
.hero__step .container { max-width: var(--max); }
.hero__step h1, .hero__step h2 { font-size: clamp(3rem, 12vw, 9.5rem); max-width: 11ch; }
.hero__step p { margin-top: 20px; font-size: clamp(1.02rem, 1.8vw, 1.35rem); color: var(--steel-2); max-width: 34em; }
.hero__step .kicker { font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; font-weight: 600; }
.hero__progress {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 28px; z-index: 3;
  display: flex; gap: 6px; max-width: 240px;
}
.hero__progress i { flex: 1; height: 2px; background: var(--line-2); position: relative; overflow: hidden; }
.hero__progress i b { position: absolute; inset: 0; background: var(--text); transform: scaleX(0); transform-origin: left; }
.hero__scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3;
  font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.hero__scroll::after {
  content: ""; width: 1px; height: 36px; background: linear-gradient(var(--text), transparent);
  animation: scroll-cue 2.2s var(--ease) infinite;
}
@keyframes scroll-cue { 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; } }
@media (max-width: 767px) { .hero__shade { background: linear-gradient(180deg, rgba(11,11,12,.5) 0%, transparent 25%, transparent 40%, rgba(11,11,12,.85) 72%, rgba(11,11,12,.95) 100%); } .hero__scroll { display: none; } .hero__progress { bottom: calc(84px + env(safe-area-inset-bottom)); } }

/* ---------- Scena 3D "Dalla lamiera al pezzo" ---------- */
.forge { position: relative; height: 560vh; background: radial-gradient(90% 60% at 50% 55%, #16171a 0%, var(--bg) 70%); }
@media (max-width: 767px) { .forge { height: 460vh; } }
.forge__sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.forge__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.forge__head { position: absolute; top: calc(var(--nav-h) + 24px); left: 0; right: 0; z-index: 2; pointer-events: none; }
.forge__head h2 { font-size: clamp(2rem, 6vw, 4.4rem); max-width: 12ch; }
.forge__phases {
  position: absolute; left: 0; right: 0; bottom: clamp(24px, 6vh, 56px); z-index: 2;
}
.forge__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.forge__phase { border-top: 1px solid var(--line-2); padding-top: 14px; opacity: 0.35; transition: opacity 0.5s var(--ease); position: relative; }
.forge__phase::before {
  content: ""; position: absolute; top: -1px; left: 0; height: 1px; width: 100%;
  background: var(--accent); transform: scaleX(var(--fill, 0)); transform-origin: left;
}
.forge__phase.is-active { opacity: 1; }
.forge__phase .n { font-size: 0.7rem; letter-spacing: 0.16em; color: var(--muted); font-variant-numeric: tabular-nums; }
.forge__phase h3 { font-size: clamp(1rem, 2.2vw, 1.6rem); margin-top: 6px; }
.forge__phase p { display: none; margin: 8px 0 0; font-size: 0.88rem; color: var(--muted); max-width: 26em; }
@media (min-width: 900px) { .forge__phase p { display: block; } }
.forge__fallback { position: absolute; inset: 0; display: none; place-items: center; text-align: center; padding: var(--gutter); color: var(--muted); }
.forge.no-webgl .forge__fallback { display: grid; }
.forge.is-static { height: auto; }
.forge.is-static .forge__sticky { position: relative; height: auto; min-height: 100svh; }
.forge.is-static .forge__phase { opacity: 1; }
.forge.is-static .forge__phase p { display: block; }
@media (max-width: 599px) {
  .forge__list { grid-template-columns: repeat(2, 1fr); gap: 16px 12px; }
}

/* ---------- Lavorazioni ---------- */
.works { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (min-width: 640px) { .works { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .works { grid-template-columns: repeat(4, 1fr); } }
.work {
  position: relative; background: var(--bg); min-height: 360px; display: flex; flex-direction: column;
  justify-content: flex-end; padding: 24px; overflow: hidden; outline-offset: -2px;
}
.work .media { position: absolute; inset: 0; z-index: 0; opacity: 0.55; transition: opacity 0.6s var(--ease), transform 1.2s var(--ease); }
.work:hover .media, .work:focus-within .media, .work.is-playing .media { opacity: 1; transform: scale(1.04); }
.work::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 11, 12, 0.2) 0%, rgba(11, 11, 12, 0.92) 85%);
}
.work > *:not(.media) { position: relative; z-index: 2; }
.work .n { position: absolute; top: 22px; left: 24px; font-size: 0.72rem; letter-spacing: 0.16em; color: var(--muted); font-variant-numeric: tabular-nums; }
.work h3 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }
.work p { margin: 10px 0 0; color: var(--steel-2); font-size: 0.92rem; max-width: 28em; }
.work .media::after { top: 56px; bottom: auto; }
.work__tag {
  align-self: flex-start; margin-top: 16px; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent);
}

/* ---------- Numeri ---------- */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
@media (min-width: 960px) { .stats { grid-template-columns: repeat(5, 1fr); } }
.stat { padding: 32px 16px 32px 0; border-bottom: 1px solid var(--line); }
@media (min-width: 960px) { .stat { border-bottom: 0; border-right: 1px solid var(--line); padding: 40px 24px 40px 0; } .stat + .stat { padding-left: 24px; } .stat:last-child { border-right: 0; } }
.stat__value {
  font-family: var(--font-display); font-variation-settings: "wdth" 62; font-stretch: 62%;
  font-weight: 800; font-size: clamp(3.6rem, 9vw, 6.4rem); line-height: 0.9; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums; display: flex; align-items: baseline; gap: 4px;
}
.stat__value small { font-size: 0.38em; color: var(--steel); font-weight: 600; letter-spacing: 0; }
.stat__value .tbc { font-size: 0.8rem; }
.stat__label { margin-top: 12px; color: var(--muted); font-size: 0.9rem; max-width: 16em; }

/* ---------- Ufficio tecnico ---------- */
.split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; gap: 80px; } .split--rev > :first-child { order: 2; } }
.split .media { aspect-ratio: 4 / 3; border-radius: var(--radius); }
.checks { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 0; }
.checks li { display: flex; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); color: var(--steel-2); }
.checks li::before { content: ""; flex: 0 0 8px; height: 8px; margin-top: 9px; background: var(--accent); border-radius: 50%; }

/* ---------- Tour teaser ---------- */
.tour-teaser { position: relative; min-height: 80vh; min-height: 80svh; display: flex; align-items: flex-end; overflow: hidden; }
.tour-teaser > .media { position: absolute; inset: 0; }
.tour-teaser::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(11,11,12,.95) 5%, rgba(11,11,12,.2) 60%); pointer-events: none; }
.tour-teaser .container { position: relative; z-index: 2; padding-bottom: clamp(40px, 8vw, 90px); }
.tour-teaser h2 { max-width: 12ch; }
.tour-teaser p { max-width: 34em; color: var(--steel-2); margin: 20px 0 32px; }

/* ---------- CTA finale ---------- */
.cta { text-align: left; }
.cta h2 { font-size: clamp(3rem, 12vw, 10rem); max-width: 10ch; }
.cta h2 em { font-style: normal; color: var(--accent); }
.cta__row { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.cta__row .muted { font-size: 0.9rem; }

/* ---------- Preventivo sempre raggiungibile ---------- */
.quote-fab {
  position: fixed; z-index: 80; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  right: var(--gutter); bottom: 24px; min-height: 52px; padding: 0 24px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: 0.95rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  transform: translateY(140%); opacity: 0; transition: transform 0.5s var(--ease), opacity 0.5s var(--ease), background 0.3s;
}
.quote-fab:hover { background: #ff6d38; }
.quote-fab .arrow { width: 18px; height: 18px; }
.quote-fab.is-visible { transform: none; opacity: 1; }
@media (max-width: 767px) {
  .quote-fab { left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); }
  .footer { padding-bottom: 100px; }
}
.no-js .quote-fab { transform: none; opacity: 1; }

/* ---------- Capitoli in profondità ----------
   Ogni sezione con data-depth arriva "dal fondo" (js/depth.js). */
.js [data-depth] { transform-origin: 50% 0; will-change: transform, opacity; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 60px 0 32px; color: var(--muted); font-size: 0.9rem; }
.footer__grid { display: grid; gap: 32px; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer h4 { margin: 0 0 12px; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel); font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer a:hover { color: var(--text); }
.footer address { font-style: normal; line-height: 1.7; }
.footer__bottom { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 0.8rem; }

/* ---------- Pagine interne: intestazione ---------- */
.page-hero { padding: calc(var(--nav-h) + clamp(60px, 12vw, 140px)) 0 clamp(50px, 8vw, 90px); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(3rem, 11vw, 8rem); max-width: 12ch; }
.page-hero .lead { margin-top: 28px; }

/* ---------- Tecnologie ---------- */
.tech-layout { display: grid; gap: 40px; }
@media (min-width: 1100px) { .tech-layout { grid-template-columns: 220px 1fr; gap: 80px; } }
.tech-nav { display: none; }
@media (min-width: 1100px) {
  .tech-nav { display: block; position: sticky; top: calc(var(--nav-h) + 40px); align-self: start; }
  .tech-nav ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; counter-reset: t; }
  .tech-nav a { display: flex; gap: 12px; padding: 8px 0; color: var(--muted); font-size: 0.9rem; transition: color 0.3s; }
  .tech-nav a::before { counter-increment: t; content: counter(t, decimal-leading-zero); font-variant-numeric: tabular-nums; font-size: 0.72rem; padding-top: 3px; }
  .tech-nav a.is-active, .tech-nav a:hover { color: var(--text); }
  .tech-nav a.is-active::before { color: var(--accent); }
}
.tech { padding: clamp(60px, 9vw, 120px) 0; border-bottom: 1px solid var(--line); scroll-margin-top: var(--nav-h); }
.tech:first-child { padding-top: 0; }
.tech .media { aspect-ratio: 16 / 9; border-radius: var(--radius); margin-bottom: 36px; }
.tech__body { display: grid; gap: 28px; }
@media (min-width: 900px) { .tech__body { grid-template-columns: 1fr 1fr; gap: 60px; } }
.tech h2 { font-size: clamp(2.2rem, 5vw, 4rem); }
.specs { margin: 0; display: grid; }
.specs div { display: grid; grid-template-columns: minmax(120px, 40%) 1fr; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); font-size: 0.95rem; }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; }
.partners { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.partners span { border: 1px solid var(--line-2); border-radius: 999px; padding: 8px 16px; font-size: 0.9rem; }

/* ---------- Preventivo ---------- */
.quote-layout { display: grid; gap: 56px; }
@media (min-width: 1000px) { .quote-layout { grid-template-columns: 0.85fr 1.15fr; gap: 90px; } .quote-aside { position: sticky; top: calc(var(--nav-h) + 40px); align-self: start; } }
.quote-aside ol { list-style: none; margin: 28px 0 0; padding: 0; counter-reset: s; }
.quote-aside ol li { counter-increment: s; display: grid; grid-template-columns: 40px 1fr; padding: 16px 0; border-top: 1px solid var(--line); color: var(--steel-2); }
.quote-aside ol li::before { content: counter(s, decimal-leading-zero); color: var(--accent); font-size: 0.8rem; padding-top: 3px; font-variant-numeric: tabular-nums; }
.contact-box { margin-top: 36px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.contact-box a { display: block; font-size: 1.1rem; margin-top: 4px; }
.contact-box a:hover { color: var(--accent); }

.form { display: grid; gap: 22px; }
.form__row { display: grid; gap: 22px; }
@media (min-width: 640px) { .form__row--2 { grid-template-columns: 1fr 1fr; } .form__row--3 { grid-template-columns: 1fr 1fr 1fr; } }
.field { display: grid; gap: 8px; }
.field label, .field .label { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--steel); font-weight: 600; }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 52px; padding: 14px 16px; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--line-2); color: var(--text);
  font: inherit; font-size: 16px; /* 16px evita lo zoom su iOS */
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
  -webkit-appearance: none; appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--steel) 50%), linear-gradient(135deg, var(--steel) 50%, transparent 50%);
  background-position: calc(100% - 22px) 50%, calc(100% - 16px) 50%;
  background-size: 6px 6px; background-repeat: no-repeat; padding-right: 44px;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: var(--bg-3); }
.field .hint { font-size: 0.8rem; color: var(--muted); }
.field .error { font-size: 0.82rem; color: #ff8a5c; display: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea, .field.has-error .dropzone { border-color: #ff8a5c; }
.field.has-error .error { display: block; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.dropzone {
  position: relative; display: grid; place-items: center; text-align: center; gap: 8px;
  min-height: 160px; padding: 28px 20px; border: 1px dashed var(--line-2); border-radius: var(--radius);
  background: var(--bg-2); transition: border-color 0.3s, background 0.3s; cursor: pointer;
}
.dropzone:hover, .dropzone.is-over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.dropzone strong { font-weight: 600; }
.dropzone small { color: var(--muted); }
.filelist { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 6px; }
.filelist li { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 10px 14px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.88rem; }
.filelist li span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filelist button { color: var(--muted); padding: 4px 8px; }
.filelist button:hover { color: var(--accent); }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 0.9rem; color: var(--steel-2); }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--accent); flex: 0 0 20px; }
.check a { text-decoration: underline; text-underline-offset: 3px; }
.form__status { padding: 18px 20px; border-radius: var(--radius); display: none; font-size: 0.95rem; }
.form__status.is-visible { display: block; }
.form__status--ok { background: rgba(80, 200, 120, 0.1); border: 1px solid rgba(80, 200, 120, 0.4); }
.form__status--err { background: rgba(255, 90, 31, 0.1); border: 1px solid rgba(255, 90, 31, 0.45); }
.form__status a { text-decoration: underline; }
.form button[type="submit"][disabled] { opacity: 0.6; cursor: progress; }
.form-success { display: none; padding: 40px 0; }
.form-success.is-visible { display: block; }
.form-success h2 { font-size: clamp(2.4rem, 6vw, 4.2rem); margin-bottom: 20px; }

/* ---------- Tour 3D ---------- */
.tour-page { background: #000; }
.tour-page .footer { display: none; }
.tour { position: fixed; inset: 0; overflow: hidden; }
.tour__viewer { position: absolute; inset: 0; }
.tour__viewer canvas { width: 100% !important; height: 100% !important; }
.tour__ui { position: absolute; inset: 0; pointer-events: none; z-index: 5; }
.tour__ui > * { pointer-events: auto; }
.tour__bar {
  position: absolute; top: calc(var(--nav-h) + 12px); left: var(--gutter); right: var(--gutter);
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: space-between; align-items: center;
}
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 999px; padding: 4px; background: rgba(11,11,12,.6); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.seg button { padding: 8px 16px; border-radius: 999px; font-size: 0.82rem; color: var(--steel-2); }
.seg button[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.tour__help { font-size: 0.78rem; color: var(--muted); background: rgba(11,11,12,.6); padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); }
@media (max-width: 767px) { .tour__help { display: none; } }
.hotspot {
  position: absolute; left: 0; top: 0; width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border-radius: 50%; display: grid; place-items: center; will-change: transform;
}
.hotspot::before { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(255,255,255,.7); animation: pulse 2.4s var(--ease) infinite; }
.hotspot::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
.hotspot span { position: absolute; left: 44px; white-space: nowrap; font-size: 0.8rem; background: rgba(11,11,12,.75); padding: 4px 10px; border-radius: 999px; opacity: 0; transition: opacity .3s; pointer-events: none; }
.hotspot:hover span, .hotspot:focus-visible span { opacity: 1; }
.hotspot.is-hidden { visibility: hidden; }
@keyframes pulse { 0% { transform: scale(.7); opacity: 1; } 100% { transform: scale(1.6); opacity: 0; } }
.tour__panel {
  position: absolute; right: var(--gutter); bottom: var(--gutter); width: min(380px, calc(100% - 2 * var(--gutter)));
  background: rgba(17,17,19,.92); border: 1px solid var(--line-2); border-radius: 8px; padding: 22px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  transform: translateY(20px); opacity: 0; visibility: hidden; transition: all .4s var(--ease);
}
.tour__panel.is-open { transform: none; opacity: 1; visibility: visible; }
.tour__panel h3 { font-size: 1.8rem; margin: 4px 0 10px; }
.tour__panel p { color: var(--steel-2); font-size: 0.92rem; }
.tour__panel .close { position: absolute; top: 10px; right: 10px; width: 36px; height: 36px; color: var(--muted); font-size: 1.4rem; line-height: 1; }
.tour__list { position: absolute; left: var(--gutter); bottom: var(--gutter); display: flex; gap: 8px; flex-wrap: wrap; max-width: 60%; }
.tour__list button { font-size: 0.8rem; padding: 8px 14px; border-radius: 999px; background: rgba(11,11,12,.7); border: 1px solid var(--line-2); }
.tour__list button:hover { border-color: var(--accent); }
@media (max-width: 767px) { .tour__list { display: none; } }
.dpad { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: none; grid-template-columns: repeat(3, 52px); grid-template-rows: repeat(2, 52px); gap: 6px; }
.tour.is-walk .dpad { display: grid; }
.dpad button { border-radius: 10px; background: rgba(11,11,12,.7); border: 1px solid var(--line-2); font-size: 1.1rem; touch-action: none; user-select: none; -webkit-user-select: none; }
.dpad [data-move="f"] { grid-column: 2; grid-row: 1; }
.dpad [data-move="l"] { grid-column: 1; grid-row: 2; }
.dpad [data-move="b"] { grid-column: 2; grid-row: 2; }
.dpad [data-move="r"] { grid-column: 3; grid-row: 2; }
@media (hover: hover) and (pointer: fine) { .dpad { display: none !important; } }

.tour__loading, .tour__empty {
  position: absolute; inset: 0; z-index: 8; display: grid; place-items: center; text-align: center;
  background: var(--bg); padding: var(--gutter); transition: opacity .6s var(--ease), visibility .6s;
}
.tour__loading.is-done { opacity: 0; visibility: hidden; }
.tour__loading .loader__inner { width: min(320px, 80vw); }
.tour__loading p { margin-top: 18px; color: var(--muted); font-size: 0.85rem; }
.tour__empty { display: none; overflow-y: auto; align-items: start; padding-top: calc(var(--nav-h) + 60px); padding-bottom: 60px; }
.tour.is-empty .tour__empty { display: grid; }
.tour__empty-inner { max-width: 900px; width: 100%; text-align: left; }
.tour__empty h1 { font-size: clamp(3rem, 11vw, 7rem); }
.tour__empty .media { aspect-ratio: 16/7; border-radius: var(--radius); margin: 36px 0; }
.hs-cards { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 30px 0 40px; }
@media (min-width: 700px) { .hs-cards { grid-template-columns: repeat(3, 1fr); } }
.hs-cards article { background: var(--bg); padding: 22px; }
.hs-cards h3 { font-size: 1.3rem; margin-bottom: 8px; }
.hs-cards p { color: var(--muted); font-size: 0.9rem; margin: 0; }

/* ---------- Animazioni di comparsa ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(28px); }
.js [data-reveal].is-in { opacity: 1; transform: none; transition: opacity 1s var(--ease), transform 1s var(--ease); }

/* ---------- Riduzione movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .hero { height: auto; }
  .hero__sticky { position: relative; height: 100svh; }
}