/* ==========================================================================
   Nemesi — sistema visivo
   Fintech scuro: superfici in vetro, bordi luminosi, sans-serif stretta,
   un solo accento viola usato come luce e mai come riempimento.
   ========================================================================== */

:root {
  --fondo:      #08080a;
  --fondo-2:    #0c0c0f;
  --superficie: rgba(255, 255, 255, 0.024);
  --superficie-2: rgba(255, 255, 255, 0.045);
  --bordo:      rgba(255, 255, 255, 0.07);
  --bordo-vivo: rgba(255, 255, 255, 0.13);

  --testo:      #f4f4f5;
  --testo-2:    #a7a7ae;
  --testo-3:    #6e6e77;

  /* Campionati dal marchio: il gradiente corre da #3B02FC a #9E49F9. */
  --viola:      #7c3aed;
  --viola-alto: #9e49f9;
  --viola-cupo: #3b02fc;
  --marca: linear-gradient(135deg, #3b02fc, #9e49f9);

  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --colonna: 1140px;
  --curva: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

/* La pagina dichiara il proprio schema di colore e rinuncia a qualunque
   riadattamento automatico: Dark Reader, il force-dark di Android e le
   modalita' a contrasto forzato lascerebbero altrimenti il tema com'e'
   stato disegnato. */
html {
  color-scheme: only light;
  forced-color-adjust: none;
  scroll-behavior: smooth;
}

* { forced-color-adjust: none; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--testo);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
}

/* Reticolo appena percepibile su tutta la pagina. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.016) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.016) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 20%, transparent 75%);
}

main, header, footer { position: relative; z-index: 1; }

::selection { background: rgba(124, 58, 237, 0.26); }

/* --------------------------------------------------------------- struttura */

.colonna {
  max-width: var(--colonna);
  margin: 0 auto;
  padding: 0 32px;
}

section { padding: 112px 0; }

.blocco { display: block; }

.indice {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--testo-3);
}

.indice::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--viola);
  box-shadow: 0 0 9px rgba(124, 58, 237, 0.85);
}

.filo {
  height: 1px;
  margin: 0;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--bordo) 22%, var(--bordo) 78%, transparent);
}

/* ------------------------------------------------------------- tipografia */

h1, h2, h3 { margin: 0; font-weight: 500; }

h1, h2 {
  letter-spacing: -0.042em;
  line-height: 1.04;
  /* Sfumatura appena accennata: dà profondità senza sembrare un effetto. */
  background: linear-gradient(175deg, #ffffff 28%, #9d9da6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h1 { font-size: clamp(2.9rem, 6.4vw, 4.7rem); }
h2 { font-size: clamp(2.1rem, 4vw, 3.05rem); }

h3 {
  font-size: 1.02rem;
  font-weight: 540;
  letter-spacing: -0.018em;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.guida {
  max-width: 560px;
  font-size: 1.09rem;
  line-height: 1.62;
  color: var(--testo-2);
  letter-spacing: -0.013em;
}

.minuto {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--testo-3);
}

.tenue { color: var(--testo-2); }

a { color: inherit; }

/* ---------------------------------------------------------------- pulsanti */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: var(--testo);
  color: #0a0a0c;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 520;
  letter-spacing: -0.012em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.3s var(--curva), box-shadow 0.3s var(--curva), opacity 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
}

.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.12); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.45; cursor: progress; transform: none; }

.freccia { transition: transform 0.35s var(--curva); }
.btn:hover .freccia { transform: translateX(3px); }

.btn-vuoto {
  background: var(--superficie-2);
  color: var(--testo);
  border-color: var(--bordo-vivo);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

.btn-vuoto:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 6px 22px rgba(0,0,0,0.4);
}

.link {
  color: var(--testo-3);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.25s;
}

.link:hover { color: var(--testo); }

/* --------------------------------------------------------------- testata */

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 8, 10, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.35s, background 0.35s;
}

header.staccata {
  border-bottom-color: var(--bordo);
  background: rgba(8, 8, 10, 0.86);
}

header .colonna {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 64px;
}

.marchio {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
}

.marchio .simbolo { width: 24px; height: 24px; }

/* La scritta e' un'immagine: e' un carattere disegnato su misura, non
   riproducibile con un font di sistema. */
.marchio .scritta { height: 13px; width: auto; display: block; }

nav { display: flex; gap: 30px; }

nav a {
  font-size: 0.89rem;
  color: var(--testo-2);
  text-decoration: none;
  transition: color 0.25s;
}

nav a:hover { color: var(--testo); }

/* ----------------------------------------------------------------- apertura */

.apertura {
  position: relative;
  padding: 128px 0 96px;
  text-align: center;
  overflow: hidden;
}

/* Bagliore viola diffuso dietro il titolo. */
.apertura::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -260px;
  width: 1000px;
  height: 620px;
  transform: translateX(-50%);
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.17), transparent 66%);
  filter: blur(28px);
}

.apertura > .colonna { position: relative; z-index: 1; }

.apertura .indice { margin-bottom: 26px; }
.apertura h1 { margin-bottom: 26px; }
.apertura .guida { margin: 0 auto 38px; }

.azioni { display: flex; gap: 11px; justify-content: center; flex-wrap: wrap; }

/* ------------------------------------------------------------ vetro comune */

.vetro {
  position: relative;
  border: 1px solid var(--bordo);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.012));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.055), 0 1px 2px rgba(0,0,0,0.4);
}

/* Filo di luce sul bordo superiore. */
.vetro::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
}

/* ------------------------------------------------------------------- cifre */

.cifre {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.cifra {
  padding: 26px 24px;
  border: 1px solid var(--bordo);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.042), rgba(255,255,255,0.01));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.4s var(--curva), transform 0.4s var(--curva);
}

.cifra:hover { border-color: var(--bordo-vivo); transform: translateY(-2px); }

.cifra .valore {
  display: block;
  margin-bottom: 7px;
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  font-weight: 520;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--testo);
}

.cifra .voce {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--testo-3);
}

/* ------------------------------------------------------------------ schede */

.schede {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.scheda {
  padding: 30px 28px;
  border: 1px solid var(--bordo);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.038), rgba(255,255,255,0.008));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.4s var(--curva), transform 0.4s var(--curva);
}

.scheda:hover { border-color: var(--bordo-vivo); transform: translateY(-2px); }

.scheda .marcatore {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 20px;
  border: 1px solid var(--bordo-vivo);
  border-radius: 9px;
  background: rgba(124, 58, 237, 0.09);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--viola-alto);
}

.scheda h3 { margin-bottom: 9px; }

.scheda p {
  color: var(--testo-2);
  font-size: 0.955rem;
  letter-spacing: -0.008em;
}

/* Compatibilità con l'elenco numerato usato nelle pagine interne. */
.punti { margin: 0; padding: 0; list-style: none; }
.punti > li { padding: 26px 0; border-top: 1px solid var(--bordo); }
.punti > li:last-child { border-bottom: 1px solid var(--bordo); }
.punti .cifretta { font-family: var(--mono); font-size: 0.72rem; color: var(--viola); }
.punti h3 { margin: 8px 0 8px; }
.punti p { color: var(--testo-2); font-size: 0.97rem; }

/* ------------------------------------------------------------- recensioni */

.recensioni {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 14px;
}

.recensione {
  display: flex;
  flex-direction: column;
  padding: 28px 26px;
  border: 1px solid var(--bordo);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.038), rgba(255,255,255,0.008));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.4s var(--curva), transform 0.4s var(--curva);
}

.recensione:hover { border-color: var(--bordo-vivo); transform: translateY(-2px); }

.stelle { display: flex; gap: 3px; margin-bottom: 18px; }

.stelle svg {
  width: 15px;
  height: 15px;
  fill: var(--viola-alto);
  /* Il bagliore tiene le stelle vive sul fondo scuro senza alzarne il peso. */
  filter: drop-shadow(0 0 5px rgba(124, 58, 237, 0.45));
}

.recensione blockquote {
  margin: 0 0 22px;
  color: var(--testo-2);
  font-size: 0.965rem;
  line-height: 1.62;
  letter-spacing: -0.008em;
}

/* La firma resta in fondo anche quando i testi hanno lunghezze diverse. */
.firma {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--bordo);
  font-size: 0.85rem;
}

.firma .nome { display: block; color: var(--testo); font-weight: 500; }
.firma .fonte { color: var(--testo-3); font-size: 0.8rem; }

/* ------------------------------------------------------------------- fascia */

.scuro { background: var(--fondo-2); border-block: 1px solid var(--bordo); }

/* ------------------------------------------------------------------- prezzo */

.listino {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 64px;
  align-items: center;
}

.targa {
  position: relative;
  padding: 34px 32px;
  border: 1px solid var(--bordo-vivo);
  border-radius: 18px;
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(124, 58, 237,0.09), transparent 58%),
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.014));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 22px 60px rgba(0,0,0,0.5);
}

.targa::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 16%;
  right: 16%;
  height: 1px;
  /* Il filo di luce sulla scheda prezzo porta il gradiente del marchio. */
  background: linear-gradient(90deg, transparent, var(--viola-cupo), var(--viola-alto), transparent);
}

.targa .importo {
  font-size: 3.1rem;
  font-weight: 520;
  line-height: 1;
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
}

.targa .iva {
  margin-left: 9px;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--testo-3);
  letter-spacing: -0.008em;
}

.compreso { margin: 26px 0; padding: 0; list-style: none; }

.compreso li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 8px 0;
  font-size: 0.93rem;
  color: var(--testo-2);
}

.compreso li::before {
  content: "";
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.13);
  /* Spunta disegnata con due bordi ruotati: nessuna icona da caricare. */
  box-shadow: inset 0 0 0 1px rgba(124, 58, 237, 0.32);
  background-image:
    linear-gradient(45deg, transparent 44%, var(--viola-alto) 44%, var(--viola-alto) 56%, transparent 56%),
    linear-gradient(-45deg, transparent 44%, var(--viola-alto) 44%, var(--viola-alto) 56%, transparent 56%);
  background-size: 7px 2px, 4px 2px;
  background-position: 5px 8px, 3px 7px;
  background-repeat: no-repeat;
}

.campo {
  width: 100%;
  padding: 12px 15px;
  margin-bottom: 10px;
  border: 1px solid var(--bordo-vivo);
  border-radius: 9px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--testo);
  font: inherit;
  font-size: 0.93rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.campo::placeholder { color: var(--testo-3); }

.campo:focus {
  outline: 0;
  border-color: rgba(124, 58, 237, 0.5);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
}

.targa .btn { width: 100%; }

.avviso {
  display: none;
  margin-top: 12px;
  padding: 11px 14px;
  border: 1px solid rgba(239, 68, 68, 0.28);
  border-radius: 9px;
  background: rgba(239, 68, 68, 0.07);
  color: #f2a293;
  font-size: 0.87rem;
}

/* -------------------------------------------------------------- fisarmonica */

details {
  border: 1px solid var(--bordo);
  border-radius: 12px;
  background: var(--superficie);
  margin-bottom: 9px;
  transition: border-color 0.3s, background 0.3s;
}

details[open] { border-color: var(--bordo-vivo); background: var(--superficie-2); }

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 470;
  letter-spacing: -0.014em;
}

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

summary .segno {
  flex: none;
  font-family: var(--mono);
  font-size: 1.05rem;
  color: var(--testo-3);
  transition: transform 0.4s var(--curva), color 0.3s;
}

details[open] summary .segno { transform: rotate(135deg); color: var(--viola-alto); }

details .risposta {
  padding: 0 22px 20px;
  max-width: 640px;
  color: var(--testo-2);
  font-size: 0.955rem;
}

/* ------------------------------------------------------------------ chiusura */

.chiusura {
  position: relative;
  padding: 116px 0;
  text-align: center;
  overflow: hidden;
}

.chiusura::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -320px;
  width: 900px;
  height: 560px;
  transform: translateX(-50%);
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.15), transparent 66%);
  filter: blur(30px);
}

.chiusura > .colonna { position: relative; z-index: 1; }
.chiusura h2 { margin-bottom: 20px; }
.chiusura .guida { margin: 0 auto 34px; }

/* ------------------------------------------------------------------- codice */

code, pre, .mono { font-family: var(--mono); font-size: 0.88em; }

pre {
  padding: 16px 18px;
  overflow-x: auto;
  border: 1px solid var(--bordo);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  font-size: 0.82rem;
  color: var(--testo-2);
}

.chiave {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding: 22px 24px;
  border: 1px solid rgba(124, 58, 237, 0.32);
  border-radius: 12px;
  background: rgba(124, 58, 237, 0.055);
  font-family: var(--mono);
  font-size: 1.06rem;
  letter-spacing: 0.02em;
  word-break: break-all;
}

/* ------------------------------------------------------------------ rischio */

.rischio {
  padding-top: 26px;
  border-top: 1px solid var(--bordo);
  color: var(--testo-3);
  font-size: 0.84rem;
  line-height: 1.6;
}

.rischio strong {
  display: block;
  margin-bottom: 9px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--testo-2);
}

/* ------------------------------------------------------------- documenti */

.documento { max-width: 720px; margin: 0 auto; padding: 76px 32px 104px; }

.documento h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  margin-bottom: 26px;
}

.documento h2 {
  margin: 46px 0 14px;
  font-size: 1.02rem;
  font-weight: 550;
  letter-spacing: -0.018em;
  background: none;
  color: var(--testo);
}

.documento ul, .documento ol { padding-left: 20px; color: var(--testo-2); }
.documento li { margin-bottom: 9px; }
.documento p { color: var(--testo-2); }

.nota {
  padding: 20px 22px;
  border: 1px solid var(--bordo);
  border-left: 2px solid var(--viola);
  border-radius: 10px;
  background: var(--superficie);
  font-size: 0.92rem;
  color: var(--testo-2);
}

.nota strong { color: var(--testo); }

.segnaposto {
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(234, 179, 8, 0.12);
  box-shadow: inset 0 0 0 1px rgba(234, 179, 8, 0.26);
  font-family: var(--mono);
  font-size: 0.82em;
  color: #e8c264;
}

/* --------------------------------------------------------------------- piede */

footer {
  padding: 52px 0;
  border-top: 1px solid var(--bordo);
  font-size: 0.86rem;
  color: var(--testo-3);
}

footer .colonna {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
  align-items: baseline;
}

footer nav { gap: 24px; }

/* ------------------------------------------------------------------ ingresso */

.entra {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.8s var(--curva), transform 0.8s var(--curva);
}

.entra.dentro { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .entra { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* -------------------------------------------------------------------- mobile */

@media (max-width: 900px) {
  .listino { grid-template-columns: minmax(0, 1fr); gap: 36px; }
}

@media (max-width: 720px) {
  .colonna { padding: 0 20px; }
  section { padding: 72px 0; }
  .apertura { padding: 72px 0 60px; }
  nav { display: none; }
  footer nav { display: flex; }
  .azioni .btn { flex: 1 1 auto; }
  .targa { padding: 26px 22px; }
  .documento { padding: 56px 20px 80px; }
  .chiusura { padding: 80px 0; }
}