/* =====================================================================
   Q-150 · spinelliano.it Sistemi ad Alta Energia
   Linguaggio visivo: documentazione tecnica. Bianco da laboratorio,
   inchiostro, un solo colore di segnale (il viola del nucleo).
   ===================================================================== */

:root {
  --carta: #f5f6f8;
  --bianco: #ffffff;
  --inchiostro: #0a0f1f;
  --testo-2: #454d61;
  --testo-3: #7a8396;
  --linea: #e2e5eb;
  --linea-2: #cdd2db;

  --viola: #5332e6;
  --viola-scuro: #3b1fc4;
  --viola-tenue: #eeeafd;
  --ciano: #0ea5b7;
  --verde: #12805c;

  --notte: #0b0e1a;
  --notte-2: #141829;
  --notte-linea: rgba(255, 255, 255, 0.1);
  --notte-testo: #a7aec0;

  --sans: 'IBM Plex Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --larghezza: 1200px;
  --margine: clamp(20px, 4vw, 40px);
  --curva: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--carta);
  color: var(--inchiostro);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }
a { color: inherit; }

h1, h2, h3 {
  margin: 0;
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.08;
  text-wrap: balance;
}

h3 { font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; }
p { margin: 0; text-wrap: pretty; }
sup { font-size: 0.62em; line-height: 0; margin-left: 1px; color: var(--testo-3); font-feature-settings: 'tnum'; }

:focus-visible { outline: 2px solid var(--viola); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--viola); color: #fff; }

.contenitore {
  width: 100%;
  max-width: var(--larghezza);
  margin-inline: auto;
  padding-inline: var(--margine);
}

.etichetta {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--viola);
  margin-bottom: 18px;
}

.lead {
  font-size: clamp(1.02rem, 1.35vw, 1.16rem);
  color: var(--testo-2);
  max-width: 58ch;
  margin-top: 22px;
  font-weight: 400;
}

/* ------------------------------------------------------------ bottoni */
.bottone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 4px;
  background: var(--inchiostro);
  color: #fff;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--inchiostro);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.bottone:hover { background: var(--viola); border-color: var(--viola); }
.bottone.secondario { background: transparent; color: var(--inchiostro); border-color: var(--linea-2); }
.bottone.secondario:hover { border-color: var(--inchiostro); background: var(--bianco); }
.bottone.piccolo { min-height: 38px; padding: 0 16px; font-size: 14px; }
.bottone.chiaro { background: #fff; color: var(--inchiostro); border-color: #fff; }
.bottone.chiaro:hover { background: var(--viola-tenue); border-color: var(--viola-tenue); }
.bottone.secondario-chiaro { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.bottone.secondario-chiaro:hover { border-color: #fff; }

.azioni { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* ------------------------------------------------------------- avviso */
.avviso {
  background: var(--inchiostro);
  color: #c9cede;
  font-size: 13.5px;
  padding-block: 9px;
}

.avviso .contenitore { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.avviso a { color: #fff; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,0.4); }
.avviso a:hover { text-decoration-color: #fff; }

.avviso-etichetta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  padding: 1px 7px;
}

/* ------------------------------------------------------------ testata */
.testata {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 246, 248, 0.88);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
}

.testata.staccata { border-bottom-color: var(--linea); }

.testata-riga {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

.marchio {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  margin-right: auto;
}

.marchio-segno { width: 30px; height: 30px; color: var(--inchiostro); flex: none; }
.marchio-testo { display: grid; line-height: 1.15; }
.marchio-testo b { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.marchio-testo small { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--testo-3); }

.menu { display: flex; gap: 2px; }

.menu a {
  font-size: 14px;
  color: var(--testo-2);
  text-decoration: none;
  padding: 8px 11px;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}

.menu a:hover { color: var(--inchiostro); background: rgba(10, 15, 31, 0.05); }
.menu a.attivo { color: var(--inchiostro); box-shadow: inset 0 -2px 0 var(--viola); border-radius: 0; }

.menu-apri {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--linea-2);
  border-radius: 4px;
  background: transparent;
  color: var(--inchiostro);
  cursor: pointer;
  place-items: center;
}

/* --------------------------------------------------------------- hero */
.hero {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: 40px;
  border-bottom: 1px solid var(--linea);
  background:
    radial-gradient(60% 70% at 78% 40%, rgba(83, 50, 230, 0.06), transparent 70%),
    var(--carta);
}

.hero-griglia {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 4.4vw, 3.7rem);
  font-weight: 300;
  letter-spacing: -0.035em;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 36px;
  margin: 40px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--linea);
}

.hero-meta dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--testo-3);
}

.hero-meta dd { margin: 4px 0 0; font-size: 14.5px; font-weight: 500; }

.hero-figura { margin: 0; }
.hero-figura svg { display: block; width: 100%; height: auto; }

figcaption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--testo-3);
  margin-top: 10px;
  border-top: 1px solid var(--linea);
  padding-top: 10px;
}

.gemello {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  align-items: center;
  margin-top: 40px;
  padding: 13px 18px;
  background: var(--bianco);
  border: 1px solid var(--linea);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--testo-2);
}

.gemello b { color: var(--inchiostro); font-weight: 500; font-feature-settings: 'tnum'; }
.gemello b.ok { color: var(--verde); }

.gemello-titolo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--testo-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 10.5px;
  margin-right: auto;
}

.spia {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--verde);
  box-shadow: 0 0 0 3px rgba(18, 128, 92, 0.15);
  animation: spia 2.4s ease-in-out infinite;
}

@keyframes spia { 50% { opacity: 0.35; } }

/* -------------------------------------------------------------- cifre */
.cifre { background: var(--bianco); border-bottom: 1px solid var(--linea); }

.cifre-griglia {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cifra {
  padding: 34px 24px 32px;
  border-left: 1px solid var(--linea);
  display: grid;
  gap: 6px;
}

.cifra:first-child { border-left: 0; padding-left: 0; }

.cifra .valore {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1;
  font-feature-settings: 'tnum';
}

.cifra .valore small { font-size: 0.42em; letter-spacing: 0; color: var(--testo-3); font-weight: 400; }
.cifra .descr { font-size: 13.5px; color: var(--testo-2); }

/* ------------------------------------------------------------ sezioni */
.sezione { padding-block: clamp(80px, 10vw, 136px); border-bottom: 1px solid var(--linea); }
.sezione.tenue { background: var(--bianco); }

.sezione-testa { position: relative; margin-bottom: clamp(44px, 6vw, 72px); max-width: 780px; }
.sezione-testa h2 { font-size: clamp(2rem, 4.2vw, 3.2rem); }

.numero-sezione {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--testo-3);
  letter-spacing: 0.06em;
  margin-bottom: 30px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--linea);
  max-width: 120px;
}

/* --------------------------------------------------------- tecnologia */
.tecnologia-griglia {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.stadi { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--linea-2); }

.stadio {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding-block: 30px;
  border-bottom: 1px solid var(--linea);
}

.stadio-n { font-family: var(--mono); font-size: 13px; color: var(--viola); padding-top: 3px; }
.stadio h3 { font-size: 1.3rem; margin-bottom: 10px; }
.stadio p { color: var(--testo-2); }

.figura-sezione { margin: 0; background: var(--bianco); border: 1px solid var(--linea); border-radius: 4px; padding: 24px 24px 18px; }
.figura-sezione svg { display: block; width: 100%; height: auto; }

.legenda {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 6px 20px;
  margin: 0 0 12px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--testo-2);
}

.legenda div { display: flex; gap: 10px; }
.legenda dt { font-family: var(--mono); color: var(--inchiostro); font-weight: 500; }
.legenda dd { margin: 0; }

/* ---------------------------------------------------------- sicurezza */
.sezione.scura { background: var(--notte); color: #fff; border-bottom: 0; }
.scura .etichetta { color: #a996ff; }
.scura .lead { color: var(--notte-testo); }
.scura .numero-sezione { border-bottom-color: var(--notte-linea); color: #6d7590; }

.sicurezza-griglia {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--notte-linea);
  border-bottom: 1px solid var(--notte-linea);
}

.garanzia { padding: 30px 26px 34px 0; }
.garanzia + .garanzia { padding-left: 26px; border-left: 1px solid var(--notte-linea); }
.garanzia-n { display: block; font-family: var(--mono); font-size: 11.5px; color: #a996ff; margin-bottom: 26px; }
.garanzia h3 { font-size: 1.12rem; margin-bottom: 10px; }
.garanzia p { color: var(--notte-testo); font-size: 14.5px; }

.sicurezza-basso {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.protocollo, .trasparenza {
  border: 1px solid var(--notte-linea);
  border-radius: 4px;
  padding: 28px;
  background: var(--notte-2);
}

.protocollo ol { margin: 0; padding: 0; list-style: none; counter-reset: passo; display: grid; gap: 14px; }

.protocollo li {
  counter-increment: passo;
  display: grid;
  grid-template-columns: 34px 1fr;
  color: var(--notte-testo);
  font-size: 15px;
}

.protocollo li::before {
  content: counter(passo, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  color: #6d7590;
  padding-top: 3px;
}

.protocollo li b { color: #fff; font-weight: 500; }

.trasparenza p:not(.etichetta) { color: var(--notte-testo); font-size: 15px; }
.trasparenza p b { color: #fff; font-weight: 500; }
.trasparenza .nota-chiara { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--notte-linea); font-size: 14px; }

/* --------------------------------------------------------- specifiche */
.specifiche {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 0 56px;
}

.gruppo { padding-bottom: 36px; }

.gruppo h3 {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--testo-3);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--inchiostro);
}

.gruppo dl { margin: 0; }

.gruppo dl div {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 12px;
  border-bottom: 1px solid var(--linea);
  font-size: 14.5px;
}

.gruppo dt { color: var(--testo-2); }
.gruppo dd { margin: 0; text-align: right; font-weight: 500; font-feature-settings: 'tnum'; }

.confronto { margin-top: 40px; }
.confronto-titolo { font-size: 1.35rem; font-weight: 400; margin-bottom: 20px; }

.tabella-scorre { overflow-x: auto; border: 1px solid var(--linea); border-radius: 4px; background: var(--bianco); }

table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 620px; }
th, td { text-align: left; padding: 14px 20px; border-bottom: 1px solid var(--linea); vertical-align: top; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
thead th { font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--testo-3); background: var(--carta); }
tbody th { font-weight: 400; color: var(--testo-2); width: 30%; }
td.evidenza, th.evidenza { background: rgba(83, 50, 230, 0.04); }
thead th.evidenza { color: var(--viola); }
td.evidenza { font-weight: 500; }

/* -------------------------------------------------------- calcolatore */
.calcolatore {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  border: 1px solid var(--linea-2);
  border-radius: 4px;
  background: var(--carta);
  overflow: hidden;
}

.calc-ingressi { padding: clamp(24px, 3.5vw, 40px); display: grid; gap: 30px; align-content: start; }

.cursore { display: grid; gap: 14px; }
.cursore-testa { display: flex; justify-content: space-between; gap: 12px; font-size: 14.5px; color: var(--testo-2); }
.cursore output { font-family: var(--mono); font-size: 14px; color: var(--inchiostro); font-weight: 500; font-feature-settings: 'tnum'; }

input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 20px;
  background: transparent;
  cursor: pointer;
  margin: 0;
}

input[type='range']::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--inchiostro) var(--riemp, 50%), var(--linea-2) var(--riemp, 50%)); }
input[type='range']::-moz-range-track { height: 2px; background: var(--linea-2); }
input[type='range']::-moz-range-progress { height: 2px; background: var(--inchiostro); }

input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--bianco);
  border: 2px solid var(--inchiostro);
  transition: border-color 0.2s, transform 0.2s;
}

input[type='range']::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--bianco); border: 2px solid var(--inchiostro); }
input[type='range']:hover::-webkit-slider-thumb { border-color: var(--viola); transform: scale(1.1); }

.calc-modello {
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--testo-3);
  padding-top: 18px;
  border-top: 1px solid var(--linea);
}

.calc-risultati { background: var(--bianco); border-left: 1px solid var(--linea-2); padding: clamp(24px, 3.5vw, 40px); }

.risultato-principale { padding-bottom: 26px; border-bottom: 1px solid var(--linea); }
.risultato-principale .etichetta { margin-bottom: 10px; }

.grande {
  display: block;
  font-size: clamp(3rem, 6vw, 4.6rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  font-feature-settings: 'tnum';
}

.grande small { font-size: 0.34em; letter-spacing: 0; color: var(--testo-3); font-weight: 400; }

.serbatoio { height: 6px; background: var(--carta); border: 1px solid var(--linea); border-radius: 3px; margin-top: 22px; overflow: hidden; }
.serbatoio i { display: block; height: 100%; width: 0; background: var(--viola); transition: width 0.35s var(--curva), background 0.2s; }
.serbatoio i.oltre { background: #b4232c; }
.serbatoio-testo { display: block; margin-top: 9px; font-size: 13px; color: var(--testo-2); }
.serbatoio-testo.oltre { color: #b4232c; }

.risultati-griglia {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.risultati-griglia div { padding: 18px 0 16px; border-bottom: 1px solid var(--linea); }
.risultati-griglia div:nth-child(odd) { padding-right: 18px; }
.risultati-griglia div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--linea); }
.risultati-griglia div:nth-last-child(-n + 2) { border-bottom: 0; }
.risultati-griglia dt { font-size: 12.5px; color: var(--testo-3); }
.risultati-griglia dd { margin: 5px 0 0; font-size: 1.12rem; font-weight: 500; font-feature-settings: 'tnum'; }

/* ----------------------------------------------------------- programma */
.trl {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 6px;
}

.trl li {
  border-top: 3px solid var(--linea-2);
  padding-top: 14px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.trl b { font-family: var(--mono); font-weight: 500; font-size: 13px; color: var(--testo-3); }
.trl span { font-size: 12.5px; line-height: 1.4; color: var(--testo-3); }
.trl li.raggiunto { border-top-color: var(--viola); }
.trl li.raggiunto b, .trl li.raggiunto span { color: var(--inchiostro); }
.trl li.raggiunto b::after { content: ' · attuale'; color: var(--viola); font-size: 11px; }

.programma-dettagli {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid var(--inchiostro);
}

.programma-dettagli > div { padding: 26px 28px 0 0; }
.programma-dettagli > div + div { padding-left: 28px; border-left: 1px solid var(--linea); }
.programma-dettagli .etichetta { color: var(--testo-3); margin-bottom: 10px; }
.programma-valore { font-size: 1.9rem; font-weight: 300; letter-spacing: -0.02em; margin-bottom: 12px; }
.programma-dettagli p:last-child { color: var(--testo-2); font-size: 14.5px; }

/* ------------------------------------------------------------- domande */
.domande-griglia {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.domande-griglia .sezione-testa { margin-bottom: 0; }
.domande { border-top: 1px solid var(--inchiostro); }
.domande details { border-bottom: 1px solid var(--linea); }

.domande summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px;
  font-size: 1.08rem;
  font-weight: 500;
}

.domande summary::-webkit-details-marker { display: none; }

.domande summary::after {
  content: '';
  flex: none;
  width: 11px;
  height: 11px;
  margin-top: 7px;
  border-right: 1.5px solid var(--inchiostro);
  border-bottom: 1.5px solid var(--inchiostro);
  transform: rotate(45deg);
  transition: transform 0.25s var(--curva);
}

.domande details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.domande details p { padding-bottom: 24px; color: var(--testo-2); max-width: 62ch; }

/* ------------------------------------------------------------ contatti */
.contatti { background: var(--viola-scuro); color: #fff; padding-block: clamp(64px, 8vw, 104px); }
.contatti .etichetta { color: #cfc6ff; }
.contatti h2 { font-size: clamp(2rem, 4.2vw, 3.2rem); }
.contatti .lead { color: #d9d3ff; }

.contatti-riga {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 40px;
  align-items: end;
}

.contatti .azioni { margin-top: 0; }

/* --------------------------------------------------------------- piede */
.piede { background: var(--notte); color: var(--notte-testo); padding-block: 56px 32px; font-size: 14px; }
.piede .marchio-segno { color: #fff; }
.piede .marchio-testo b { color: #fff; }
.piede .marchio-testo small { color: #6d7590; }

.piede-alto {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--notte-linea);
}

.piede-alto .marchio { margin-right: 0; }
.piede-link { display: flex; gap: 6px 22px; flex-wrap: wrap; }
.piede-link a { text-decoration: none; color: var(--notte-testo); }
.piede-link a:hover { color: #fff; }

.note {
  margin: 28px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 12.5px;
  color: #7f87a0;
  max-width: 900px;
}

.note li::marker { font-family: var(--mono); font-size: 11px; }

.piede-basso {
  display: flex;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--notte-linea);
  font-family: var(--mono);
  font-size: 11px;
  color: #6d7590;
}

/* ---------------------------------------------------------- comparsa */
.rivela { opacity: 0; transform: translateY(14px); transition: opacity 0.7s var(--curva), transform 0.7s var(--curva); }
.rivela.visibile { opacity: 1; transform: none; }
.no-js .rivela { opacity: 1; transform: none; }

/* -------------------------------------------------------- responsive */
@media (max-width: 1080px) {
  .menu a { padding-inline: 8px; }
  .testata .bottone.piccolo { display: none; }
}

@media (max-width: 960px) {
  .hero-griglia, .tecnologia-griglia, .calcolatore, .domande-griglia, .sicurezza-basso { grid-template-columns: 1fr; }
  .calc-risultati { border-left: 0; border-top: 1px solid var(--linea-2); }
  .sicurezza-griglia { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .garanzia:nth-child(3) { padding-left: 0; border-left: 0; }
  .garanzia:nth-child(n + 3) { border-top: 1px solid var(--notte-linea); }
  .cifre-griglia { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cifra:nth-child(3) { border-left: 0; padding-left: 0; }
  .cifra:nth-child(n + 3) { border-top: 1px solid var(--linea); }
  .trl { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px 8px; }
  .contatti-riga { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 820px) {
  .menu { display: none; }
  .menu-apri { display: grid; }
  .menu.aperto {
    display: grid;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    padding: 8px var(--margine) 16px;
    background: var(--carta);
    border-bottom: 1px solid var(--linea);
  }
  .menu.aperto a { padding: 13px 0; border-bottom: 1px solid var(--linea); border-radius: 0; font-size: 15px; }
  .menu.aperto a.attivo { box-shadow: none; color: var(--viola); }
}

@media (max-width: 640px) {
  .sicurezza-griglia { grid-template-columns: 1fr; }
  .garanzia, .garanzia + .garanzia { padding: 26px 0; border-left: 0; }
  .garanzia + .garanzia { border-top: 1px solid var(--notte-linea); }
  .programma-dettagli { grid-template-columns: 1fr; }
  .programma-dettagli > div, .programma-dettagli > div + div { padding: 22px 0; border-left: 0; }
  .programma-dettagli > div + div { border-top: 1px solid var(--linea); }
  .risultati-griglia { grid-template-columns: 1fr; }
  .risultati-griglia div:nth-child(n) { padding-inline: 0; border-left: 0; border-bottom: 1px solid var(--linea); }
  .risultati-griglia div:last-child { border-bottom: 0; }
  .trl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gemello-titolo { flex-basis: 100%; }
  .gruppo dl div { font-size: 14px; }
  .specifiche { grid-template-columns: 1fr; }
  .avviso { font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .rivela { opacity: 1; transform: none; }
}