/* tech-brezza · Nimbo, startup con un prodotto: un sensore della qualità dell'aria (vetrina ed e-commerce)
   Archetipo H12: foto a tutta pagina con un nastro di valori che scorre sopra, inclinato.
   Firma: zoom in parallasse dentro le cornici delle stanze.
   Elementi di Marco (§3b): 2 grassezza che cresce sulla frase dell'app, 3 numeri che contano,
   7 barra di lettura, 10 nastro di premi e partner con bordi sfumati, 6 Lenis.
   Chiaro e freddo: foschia, inchiostro petrolio, menta luminosa. Il prodotto è disegnato in CSS. */

@font-face { font-family: 'Familjen Grotesk'; src: url('../_font/familjen-grotesk/familjen-grotesk-var.woff2') format('woff2'); font-weight: 400 700; font-display: swap; }
@font-face { font-family: 'Inter Tight'; src: url('../_font/inter-tight/inter-tight-var.woff2') format('woff2'); font-weight: 100 900; font-display: swap; }

:root {
  --p: #173a4e;
  --s: #e8eef1;
  --t: #0f1a22;
  --a: #7ef2c8;
  --f-titoli: 'Familjen Grotesk', 'Segoe UI', system-ui, sans-serif;
  --f-testo: 'Inter Tight', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --su-p: var(--s);
  --tenue: color-mix(in oklab, var(--t) 64%, var(--s));
  --linea: color-mix(in oklab, var(--t) 14%, var(--s));
  --carta: color-mix(in oklab, var(--t) 4%, var(--s));
  --curva: cubic-bezier(.2, .8, .2, 1);
  --largo: 1320px;
  --gutter: clamp(18px, 3.6vw, 48px);
  --testata: 72px;
}

[hidden] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--s); color: var(--t); font-family: var(--f-testo); font-size: 17px; line-height: 1.55; overflow-x: clip; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
svg { width: 1em; height: 1em; flex: none; }
sub { font-size: .6em; vertical-align: -.2em; line-height: 0; }
h1, h2, h3 { font-family: var(--f-titoli); font-weight: 700; margin: 0; letter-spacing: -0.03em; line-height: 1; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
::selection { background: var(--a); color: var(--t); }
:focus-visible { outline: 2px solid var(--p); outline-offset: 3px; border-radius: 8px; }

.contenitore { width: min(100% - 2 * var(--gutter), var(--largo)); margin-inline: auto; }
.titolo-sezione { font-size: clamp(2.2rem, 4.6vw, 4.4rem); max-width: 18ch; }
.sottotitolo { font-size: clamp(1.05rem, 1.3vw, 1.18rem); color: var(--tenue); max-width: 50ch; margin-top: 18px; }

/* ---------- bottoni ---------- */
.btn { --h: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: var(--h); padding: 0 24px; border-radius: 999px; border: 0; font: 600 1rem/1 var(--f-testo); text-decoration: none; white-space: nowrap; cursor: pointer; transition: transform .35s var(--curva), background-color .3s, color .3s; }
.btn:has(.btn__icona) { padding-right: 7px; }
.btn:active { transform: scale(.98); }
.btn--pieno { background: var(--p); color: var(--su-p); }
.btn--pieno:hover { background: var(--t); color: var(--s); }
.btn--chiaro { background: color-mix(in oklab, var(--s) 70%, transparent); color: var(--t); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); box-shadow: inset 0 0 0 1px var(--linea); }
.btn--piccolo { --h: 44px; padding: 0 18px; font-size: .94rem; }
.btn__icona { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--a); color: var(--t); }
.btn__icona svg { width: 18px; height: 18px; transition: transform .35s var(--curva); }
.btn:hover .btn__icona svg { transform: translateX(3px); }

/* ---------- testata ---------- */
.testata { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--testata); transition: background-color .4s, box-shadow .4s; }
.testata::before { content: ""; position: absolute; inset: 0 0 -30px 0; z-index: -1; background: linear-gradient(to bottom, color-mix(in oklab, var(--s) 80%, transparent), transparent); transition: opacity .4s; pointer-events: none; }
.testata--piena { background: color-mix(in oklab, var(--s) 90%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--linea); }
.testata--piena::before, .testata--aperta::before { opacity: 0; }
.testata--aperta { background: var(--s); -webkit-backdrop-filter: none; backdrop-filter: none; }
.lettura { position: absolute; left: 0; right: 0; top: 0; height: 3px; z-index: 3; pointer-events: none; }
.lettura i { display: block; height: 100%; background: var(--p); transform-origin: left; transform: scaleX(0); }
.testata__riga { position: relative; height: 100%; width: min(100% - 2 * var(--gutter), var(--largo)); margin-inline: auto; display: flex; align-items: center; gap: 26px; }
.marchio { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 700 1.35rem/1.05 var(--f-titoli); letter-spacing: -0.03em; min-width: 0; }
.marchio span[data-nome] { max-width: 16ch; }
.marchio__segno { width: 22px; height: 22px; border-radius: 50%; flex: none; background: var(--t); box-shadow: inset 0 0 0 4px var(--a); }
.menu ul { display: flex; gap: 4px; }
.menu a { display: block; padding: 8px 13px; border-radius: 999px; text-decoration: none; font-weight: 500; font-size: .97rem; transition: background-color .25s; }
.menu a:hover { background: var(--carta); }
.testata__azioni { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.lingua { display: inline-flex; padding: 3px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--linea); }
.lingua button { border: 0; background: none; cursor: pointer; font-size: .8rem; font-weight: 700; padding: 6px 10px; min-height: 32px; border-radius: 999px; color: var(--tenue); }
.lingua button[aria-pressed="true"] { background: var(--t); color: var(--s); }
.carrello { position: relative; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--linea); text-decoration: none; }
.carrello svg { width: 20px; height: 20px; }
.carrello__conta { position: absolute; top: -5px; right: -5px; min-width: 21px; height: 21px; padding: 0 5px; border-radius: 999px; background: var(--a); color: var(--t); font-size: .76rem; font-weight: 700; display: grid; place-items: center; }
.hamburger { display: none; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--t); cursor: pointer; position: relative; flex: none; }
.hamburger span { position: absolute; left: 13px; right: 13px; height: 2px; background: var(--s); transition: transform .4s var(--curva), top .4s var(--curva); }
.hamburger span:first-child { top: 18px; }
.hamburger span:last-child { top: 25px; }
.hamburger[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.hamburger[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

/* ---------- il prodotto, disegnato ---------- */
.dispositivo { position: relative; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 34% 28%, color-mix(in oklab, var(--s) 55%, #fff) 0 18%, color-mix(in oklab, var(--s) 92%, var(--t)) 72%); box-shadow: 0 34px 60px -24px color-mix(in oklab, var(--t) 50%, transparent), inset 0 -10px 24px color-mix(in oklab, var(--t) 14%, transparent), inset 0 6px 12px color-mix(in oklab, var(--s) 40%, #fff); }
.dispositivo__anello { position: absolute; inset: 11%; border-radius: 50%; background: conic-gradient(from -90deg, var(--a) 0 72%, color-mix(in oklab, var(--a) 22%, var(--s)) 72% 100%); -webkit-mask: radial-gradient(circle, transparent 60%, #000 61.5%); mask: radial-gradient(circle, transparent 60%, #000 61.5%); filter: drop-shadow(0 0 10px color-mix(in oklab, var(--a) 80%, transparent)); animation: respira 4s ease-in-out infinite; }
@keyframes respira { 50% { opacity: .72; } }
.dispositivo__schermo { position: absolute; inset: 30%; border-radius: 50%; background: var(--t); color: var(--a); display: grid; place-content: center; text-align: center; container-type: inline-size; }
.dispositivo__schermo b { font: 700 32cqw/1 var(--f-titoli); letter-spacing: -0.04em; }
.dispositivo__schermo small { font-size: max(12px, 12cqw); color: color-mix(in oklab, var(--a) 70%, var(--s)); }

/* ---------- hero ---------- */
.hero { position: relative; min-height: min(100svh, 940px); overflow: hidden; isolation: isolate; }
.hero__foto { position: absolute; inset: 0; z-index: -2; }
.hero__foto img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 60%; }
.hero__velo { position: absolute; inset: 0; z-index: -1; background: linear-gradient(115deg, var(--s) 0%, color-mix(in oklab, var(--s) 82%, transparent) 30%, color-mix(in oklab, var(--s) 10%, transparent) 62%, transparent 80%); }
.hero__testo { padding: calc(var(--testata) + clamp(40px, 7vh, 90px)) 0 0; }
.hero__titolo { font-size: clamp(2.8rem, 7.2vw, 7.8rem); line-height: .92; letter-spacing: -0.045em; max-width: 9.5ch; }
.hero__sotto { margin-top: 24px; font-size: clamp(1.08rem, 1.35vw, 1.24rem); max-width: 38ch; color: color-mix(in oklab, var(--t) 80%, var(--s)); }
.hero__azioni { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.nastro-valori { position: absolute; left: -5%; right: -5%; bottom: clamp(60px, 12vh, 120px); transform: rotate(-3deg); background: color-mix(in oklab, var(--t) 86%, transparent); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); padding: clamp(10px, 1.3vw, 18px) 0; overflow: hidden; }
.nastro-valori__pista { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 44px); width: max-content; font: 700 clamp(1.8rem, 4.2vw, 4.4rem)/1 var(--f-titoli); letter-spacing: -0.03em; color: var(--a); white-space: nowrap; animation: scorri 30s linear infinite; }
.nastro-valori__pista i { width: .35em; height: .35em; border-radius: 50%; background: var(--s); flex: none; }
@keyframes scorri { to { transform: translateX(-50%); } }
.dispositivo--hero { position: absolute; right: clamp(20px, 8vw, 140px); bottom: clamp(90px, 16vh, 170px); width: clamp(120px, 15vw, 230px); z-index: 2; }

/* ---------- partner ---------- */
.partner { padding: 22px 0; border-bottom: 1px solid var(--linea); }
.nastro { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.nastro__pista { display: flex; gap: clamp(32px, 4vw, 64px); width: max-content; animation: scorri 38s linear infinite; }
.nastro:hover .nastro__pista { animation-play-state: paused; }
.nastro__pista li { display: inline-flex; align-items: center; gap: 12px; white-space: nowrap; font: 700 1.1rem var(--f-titoli); color: var(--tenue); letter-spacing: -0.01em; }
.nastro__pista li::before { content: ""; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--p); }

/* ---------- cosa misura ---------- */
.misura { padding: clamp(90px, 11vw, 150px) 0; }
.misura__scena { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr); grid-template-rows: auto auto; gap: clamp(28px, 4vw, 64px) clamp(20px, 4vw, 60px); align-items: center; margin-top: clamp(40px, 5vw, 70px); }
.dispositivo--grande { grid-column: 2; grid-row: 1 / 3; width: min(100%, 420px); justify-self: center; }
.v1 { grid-column: 1; grid-row: 1; }
.v2 { grid-column: 1; grid-row: 2; }
.v3 { grid-column: 3; grid-row: 1; }
.v4 { grid-column: 3; grid-row: 2; }
.lettura-valore { border-top: 1px solid var(--t); padding-top: 16px; }
.lettura-valore b { display: block; font: 700 clamp(2.8rem, 4.8vw, 4.8rem)/1 var(--f-titoli); letter-spacing: -0.05em; }
.lettura-valore b small { font-size: .38em; letter-spacing: 0; color: var(--tenue); }
.lettura-valore h3 { font-size: 1.25rem; margin-top: 12px; letter-spacing: -0.02em; }
.lettura-valore p { color: var(--tenue); margin-top: 6px; max-width: 32ch; }

/* ---------- stanze: zoom dentro le cornici ---------- */
.stanze { padding: 0 0 clamp(90px, 11vw, 150px); }
.stanze__fila { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(12px, 1.6vw, 22px); margin-top: clamp(40px, 5vw, 64px); }
.stanza:nth-child(even) { margin-top: 60px; }
.cornice { margin: 0 0 14px; aspect-ratio: 3 / 4; border-radius: 22px; overflow: hidden; background: var(--carta); }
.cornice img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.22); transform-origin: 50% 60%; }
.stanza h3 { font-size: 1.4rem; }
.stato { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; font-size: .95rem; color: var(--tenue); }
.stato::before { content: ""; width: 10px; height: 10px; border-radius: 50%; flex: none; }
.stato--ok::before { background: var(--a); box-shadow: 0 0 0 3px color-mix(in oklab, var(--a) 30%, transparent); }
.stato--attento::before { background: color-mix(in oklab, var(--a) 45%, var(--p)); }
.stato--male::before { background: var(--p); animation: lampeggia 1.2s steps(2) infinite; }
@keyframes lampeggia { 50% { opacity: .2; } }

/* ---------- app ---------- */
.app { padding: clamp(90px, 11vw, 150px) 0; background: var(--t); color: var(--s); overflow: hidden; }
.app__griglia { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(40px, 6vw, 96px); align-items: center; }
.app__frase { font-size: clamp(2.4rem, 5vw, 5rem); font-weight: 400; letter-spacing: -0.045em; line-height: .96; max-width: 16ch; }
.app .sottotitolo { color: color-mix(in oklab, var(--s) 72%, var(--t)); }
.colori-anello { margin-top: 30px; display: grid; gap: 12px; }
.colori-anello li { display: flex; align-items: center; gap: 12px; }
.colori-anello i { width: 22px; height: 22px; border-radius: 50%; border: 4px solid var(--a); }
.colori-anello .c-attento { animation: respira 2.4s ease-in-out infinite; }
.colori-anello .c-male { animation: lampeggia 1.2s steps(2) infinite; }
.telefono { width: min(100%, 330px); justify-self: center; aspect-ratio: 9 / 18; border-radius: 46px; padding: 12px; background: color-mix(in oklab, var(--s) 12%, var(--t)); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--s) 25%, var(--t)), 0 40px 90px -30px color-mix(in oklab, var(--a) 40%, transparent); }
.telefono__schermo { height: 100%; border-radius: 36px; background: var(--s); color: var(--t); padding: 30px 20px 20px; display: flex; flex-direction: column; gap: 10px; }
.t-ora { font-size: .95rem; color: var(--tenue); }
.t-valore { font-size: 1rem; }
.t-valore b { font: 700 3.2rem/1 var(--f-titoli); letter-spacing: -0.05em; }
.t-grafico { width: 100%; height: 150px; margin-top: 10px; overflow: visible; }
.t-soglia { fill: none; stroke: var(--tenue); stroke-dasharray: 4 5; stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.t-linea { fill: none; stroke: var(--p); stroke-width: 3; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.t-ore { display: flex; justify-content: space-between; font-size: .8rem; color: var(--tenue); }
.t-stanze { margin-top: 8px; display: grid; gap: 6px; }
.t-stanze li { display: flex; justify-content: space-between; align-items: center; padding: 9px 12px; border-radius: 14px; background: var(--carta); font-size: .92rem; }
.t-stanze b { font-family: var(--f-titoli); }
.t-stanze li:last-child b { color: var(--p); }
.t-avviso { margin-top: auto; padding: 14px 16px; border-radius: 20px; background: var(--p); color: var(--su-p); display: grid; gap: 2px; }
.t-avviso span { font-size: .9rem; opacity: .85; }

/* ---------- ordina ---------- */
.ordina { padding: clamp(90px, 11vw, 150px) 0; background: color-mix(in oklab, var(--a) 16%, var(--s)); }
.prodotto-unico { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.dispositivo--medio { width: min(100%, 380px); justify-self: center; }
.compreso { margin: 28px 0 34px; display: grid; gap: 12px; }
.compreso li { display: flex; gap: 12px; align-items: flex-start; font-size: 1.08rem; }
.compreso svg { width: 20px; height: 20px; margin-top: 3px; color: var(--p); }
.prodotti { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 40px; }
.prodotto { border-radius: 24px; background: var(--s); padding: 12px 12px 18px; display: flex; flex-direction: column; box-shadow: 0 20px 40px -30px color-mix(in oklab, var(--t) 50%, transparent); }
.prodotto__vista { aspect-ratio: 4 / 3; border-radius: 16px; overflow: hidden; background: color-mix(in oklab, var(--a) 22%, var(--s)); display: grid; place-items: center; margin-bottom: 14px; }
.prodotto__vista img { width: 100%; height: 100%; object-fit: cover; }
.prodotto__vista--tre { display: flex; justify-content: center; align-items: center; gap: 8px; }
.dispositivo--piccolo { width: 44%; }
.prodotto__vista--tre .dispositivo--piccolo { width: 28%; }
.supporto { width: 46%; aspect-ratio: 5 / 3; border-radius: 12px; background: linear-gradient(135deg, color-mix(in oklab, var(--t) 28%, var(--s)), color-mix(in oklab, var(--t) 42%, var(--s))); box-shadow: 0 16px 24px -14px color-mix(in oklab, var(--t) 60%, transparent); }
.prodotto h3 { font-size: 1.25rem; padding: 0 6px; }
.prodotto p { color: var(--tenue); padding: 2px 6px 0; }
.prodotto__riga { margin-top: auto; padding: 16px 6px 0; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.prodotto__riga b { font: 700 1.5rem/1 var(--f-titoli); }
.aggiungi { min-height: 44px; padding: 0 18px; border-radius: 999px; border: 0; background: var(--p); color: var(--su-p); font-weight: 600; cursor: pointer; transition: background-color .25s, transform .3s var(--curva); }
.aggiungi:hover { transform: translateY(-2px); }
.aggiungi.fatto { background: var(--a); color: var(--t); }
.avviso-carrello { position: fixed; left: 50%; top: 86px; z-index: 60; transform: translate(-50%, -16px); opacity: 0; pointer-events: none; background: var(--t); color: var(--s); padding: 12px 20px; border-radius: 999px; font-weight: 600; transition: opacity .3s, transform .3s; }
.avviso-carrello.visibile { opacity: 1; transform: translate(-50%, 0); }

/* ---------- recensioni ---------- */
.recensioni { padding: clamp(90px, 11vw, 150px) 0; }
.recensioni__griglia { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); margin-top: clamp(36px, 5vw, 56px); }
.recensioni blockquote { margin: 0; padding-top: 18px; border-top: 2px solid var(--t); }
.recensioni blockquote p { font: 500 clamp(1.15rem, 1.6vw, 1.4rem)/1.35 var(--f-titoli); letter-spacing: -0.015em; }
.recensioni footer { margin-top: 16px; color: var(--tenue); }
.recensioni footer b { color: var(--t); margin-right: 6px; }

/* ---------- domande ---------- */
.domande { padding: 0 0 clamp(90px, 11vw, 150px); }
.domande__griglia { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.fisarmonica details { border-bottom: 1px solid var(--linea); }
.fisarmonica summary { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 22px 0; cursor: pointer; list-style: none; font: 700 clamp(1.1rem, 1.5vw, 1.3rem)/1.3 var(--f-titoli); }
.fisarmonica summary::-webkit-details-marker { display: none; }
.fisarmonica summary svg { width: 22px; height: 22px; transition: transform .35s var(--curva); }
.fisarmonica details[open] summary svg { transform: rotate(180deg); }
.fisarmonica p { padding-bottom: 22px; color: var(--tenue); max-width: 60ch; }

/* ---------- contatti ---------- */
.contatti { padding: 0 0 clamp(60px, 8vw, 110px); }
.contatti__blocco { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); padding: clamp(28px, 5vw, 72px); border-radius: 36px; background: var(--p); color: var(--su-p); }
.contatti .sottotitolo { color: inherit; opacity: .8; }
.recapiti { margin-top: 28px; display: grid; gap: 6px; font-weight: 600; }
.recapiti a { text-decoration: none; }
.modulo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-content: start; }
.campo { display: grid; gap: 6px; }
.campo--largo { grid-column: 1 / -1; }
.campo label { font-weight: 600; font-size: .92rem; }
.campo input, .campo select { font: inherit; color: var(--t); background: var(--s); border: 2px solid transparent; border-radius: 14px; padding: 12px 14px; min-height: 50px; width: 100%; }
.campo input:focus, .campo select:focus { outline: none; border-color: var(--a); }
.contatti .btn--pieno { background: var(--a); color: var(--t); justify-self: start; }
.contatti .btn__icona { background: var(--t); color: var(--a); }

/* ---------- piede ---------- */
.piede { padding: 20px 0 30px; }
.piede__griglia { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 28px; }
.piede__nome { display: flex; align-items: center; gap: 12px; font: 700 clamp(1.8rem, 3.4vw, 3rem)/1 var(--f-titoli); letter-spacing: -0.04em; }
.newsletter { flex: 1 1 320px; max-width: 460px; }
.newsletter label { display: block; margin-bottom: 10px; }
.newsletter__riga { display: flex; gap: 8px; }
.newsletter input { flex: 1; min-width: 0; font: inherit; color: var(--t); background: var(--carta); border: 1.5px solid var(--linea); border-radius: 999px; padding: 0 18px; min-height: 46px; }
.newsletter input::placeholder { color: color-mix(in oklab, var(--t) 55%, var(--s)); }
.piede__basso { margin-top: 30px; padding: 18px 90px 0 0; border-top: 1px solid var(--linea); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: .9rem; color: var(--tenue); }
.piede__basso ul { display: flex; gap: 18px; }

/* ---------- whatsapp ---------- */
.whatsapp { position: fixed; right: 20px; bottom: 20px; z-index: 40; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: var(--t); color: var(--a); box-shadow: 0 16px 34px -14px color-mix(in oklab, var(--t) 70%, transparent); transition: transform .35s var(--curva), opacity .5s; }
.whatsapp svg { width: 24px; height: 24px; }
.js-wa .whatsapp { opacity: 0; transform: translateY(20px); pointer-events: none; }
.js-wa .whatsapp.visibile { opacity: 1; transform: none; pointer-events: auto; }

.link-spento { display: none !important; }
.js .hero__sotto, .js .hero__azioni, .js .dispositivo--hero { opacity: 0; }

/* ---------- responsive ---------- */
@media (min-width: 1800px) { :root { --largo: 1480px; } }
@media (max-width: 1100px) {
  .lingua { display: none; }
  .misura__scena { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .dispositivo--grande { grid-column: 1 / -1; grid-row: 1; width: min(60%, 340px); }
  .v1, .v2, .v3, .v4 { grid-row: auto; grid-column: auto; }
  .stanze__fila { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  :root { --testata: 64px; }
  .hamburger { display: block; }
  .testata__cta { display: none; }
  .menu { position: fixed; inset: 0; z-index: -1; background: var(--s); padding: 100px var(--gutter) 40px; display: flex; flex-direction: column; justify-content: center; clip-path: inset(0 0 100% 0); visibility: hidden; transition: clip-path .6s var(--curva), visibility 0s .6s; }
  .menu.aperto { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .6s var(--curva); }
  .menu ul { flex-direction: column; gap: 2px; }
  .menu a { font: 700 clamp(2.2rem, 9vw, 3.2rem)/1.15 var(--f-titoli); letter-spacing: -0.035em; padding: 4px 0; }
  .hero__velo { background: linear-gradient(to bottom, var(--s) 0%, color-mix(in oklab, var(--s) 85%, transparent) 42%, transparent 70%); }
  .app__griglia, .prodotto-unico, .domande__griglia, .contatti__blocco { grid-template-columns: minmax(0, 1fr); }
  .recensioni__griglia { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { min-height: min(100svh, 760px); }
  .hero__titolo { font-size: clamp(2.6rem, 13vw, 3.6rem); }
  .hero__azioni .btn { flex: 1 1 auto; }
  .nastro-valori { bottom: 40px; }
  .dispositivo--hero { width: 96px; right: 16px; bottom: 96px; }
  .misura__scena { grid-template-columns: minmax(0, 1fr); }
  .stanze__fila { gap: 10px; }
  .stanza:nth-child(even) { margin-top: 30px; }
  .stanza h3 { font-size: 1.15rem; }
  .stato { font-size: .85rem; align-items: flex-start; }
  .stato::before { margin-top: 5px; }
  .modulo { grid-template-columns: minmax(0, 1fr); }
  .contatti .btn--pieno { justify-self: stretch; }
  .newsletter__riga { flex-direction: column; }
  .piede__basso { padding-right: 76px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .js .hero__sotto, .js .hero__azioni, .js .dispositivo--hero { opacity: 1; }
  .cornice img { transform: none; }
}

/* ---------- apertura: il sensore si accende, respira, e il velo si dissolve ---------- */
.apertura { --giro: 0; background: radial-gradient(circle at 50% 44%, color-mix(in oklab, var(--a) 20%, var(--s)), var(--s) 60%); display: grid; place-content: center; justify-items: center; gap: 26px; }
.ap-sensore { position: relative; width: min(240px, 52vw); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 34% 28%, color-mix(in oklab, var(--s) 55%, #fff) 0 18%, color-mix(in oklab, var(--s) 92%, var(--t)) 72%); box-shadow: 0 34px 60px -24px color-mix(in oklab, var(--t) 50%, transparent), inset 0 -10px 24px color-mix(in oklab, var(--t) 14%, transparent); }
.ap-anello { position: absolute; inset: 11%; border-radius: 50%; background: conic-gradient(from -90deg, var(--a) 0 calc(var(--giro) * 100%), color-mix(in oklab, var(--a) 18%, var(--s)) calc(var(--giro) * 100%) 100%); -webkit-mask: radial-gradient(circle, transparent 60%, #000 61.5%); mask: radial-gradient(circle, transparent 60%, #000 61.5%); filter: drop-shadow(0 0 12px color-mix(in oklab, var(--a) 80%, transparent)); }
.ap-schermo { position: absolute; inset: 30%; border-radius: 50%; background: var(--t); color: var(--a); display: grid; place-content: center; text-align: center; }
.ap-schermo b { font: 700 clamp(1.4rem, 5.4vw, 2.4rem)/1 var(--f-titoli); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.ap-schermo small { font-size: 12px; }
.ap-nome { font: 700 clamp(1.6rem, 5vw, 2.6rem)/1 var(--f-titoli); letter-spacing: -0.04em; color: var(--t); text-align: center; padding: 0 16px; }