/* Sito di presentazione di Privasolo — serie SOLO: turchese #4FCFBB, antracite #0D1016.
   Ogni altro colore mantiene tinta e saturazione di uno dei due e cambia solo la luminosità. */
:root {
  --an-0: hsl(220 26% 7%);
  --an-1: hsl(220 26% 10%);
  --an-2: hsl(220 26% 14%);
  --an-3: hsl(220 26% 20%);
  --an-5: hsl(220 26% 52%);
  --an-6: hsl(220 26% 70%);
  --an-8: hsl(220 26% 94%);
  --tu-0: hsl(171 57% 10%);
  --tu-2: hsl(171 57% 30%);
  --tu: hsl(171 57% 56%);
  --tu-4: hsl(171 57% 72%);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--an-0); color: var(--an-8); font-family: var(--font); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--tu-4); }
img { max-width: 100%; }
.contenitore { width: min(1120px, 100% - 32px); margin: 0 auto; }

.testata { position: sticky; top: 0; z-index: 10; background: hsl(220 26% 7% / .9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--an-2); }
.testata .contenitore { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.marchio { display: flex; align-items: center; gap: 10px; color: var(--an-8); text-decoration: none; font-weight: 750; font-size: 19px; letter-spacing: -.01em; }
.marchio img { width: 32px; height: 32px; border-radius: 9px; }
.marchio b { color: var(--tu); }
.menu { margin-left: auto; display: flex; gap: 22px; align-items: center; }
.menu a { color: var(--an-6); text-decoration: none; font-weight: 600; font-size: 15px; }
.menu a:hover { color: var(--an-8); }
@media (max-width: 720px) { .menu a:not(.pulsante) { display: none; } }

.pulsante { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 22px; border-radius: 13px; font-weight: 700; text-decoration: none; border: 1px solid var(--an-3); color: var(--an-8); background: var(--an-2); }
.pulsante.primario { background: var(--tu); border-color: var(--tu); color: var(--an-0); }
.pulsante.primario:hover { background: var(--tu-4); }
.menu .pulsante { min-height: 40px; padding: 8px 16px; font-size: 15px; }

.eroe { padding: 88px 0 64px; }
.eroe .etichetta { display: inline-block; font-size: 13px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; color: var(--tu); margin-bottom: 18px; }
.eroe h1 { font-size: clamp(38px, 7vw, 68px); line-height: 1.04; letter-spacing: -.035em; margin: 0 0 22px; max-width: 14ch; }
.eroe h1 em { font-style: normal; color: var(--tu); }
.eroe p { font-size: clamp(18px, 2.2vw, 21px); color: var(--an-6); max-width: 60ch; margin: 0 0 32px; }
.eroe .azioni { display: flex; flex-wrap: wrap; gap: 12px; }
.nota-eroe { font-size: 14px; color: var(--an-5); margin-top: 18px; }

section { padding: 64px 0; border-top: 1px solid var(--an-2); }
section h2 { font-size: clamp(28px, 4vw, 40px); line-height: 1.12; letter-spacing: -.025em; margin: 0 0 14px; max-width: 22ch; }
section .intro { color: var(--an-6); max-width: 62ch; margin: 0 0 36px; font-size: 18px; }

.griglia { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.carta { background: var(--an-1); border: 1px solid var(--an-2); border-radius: 18px; padding: 24px; }
.carta h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.01em; }
.carta p { margin: 0; color: var(--an-6); font-size: 16px; }
.carta .numero { font-size: 14px; font-weight: 800; color: var(--tu); margin-bottom: 10px; display: block; }

.confronto { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.confronto .carta.evidenza { border-color: var(--tu-2); background: var(--tu-0); }
.confronto ul { margin: 12px 0 0; padding-left: 20px; color: var(--an-6); }
.confronto li { margin: 6px 0; }
.confronto .evidenza li { color: var(--an-8); }

.piani { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.piano { display: flex; flex-direction: column; }
.piano .prezzo { font-size: 15px; color: var(--an-6); margin: 4px 0 14px; }
.piano ul { margin: 0 0 22px; padding-left: 20px; color: var(--an-6); flex: 1; }
.piano li { margin: 6px 0; }
.piano.evidenza { border-color: var(--tu); }

.faq details { border: 1px solid var(--an-2); border-radius: 14px; background: var(--an-1); margin-bottom: 10px; }
.faq summary { padding: 18px 20px; cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--tu); font-weight: 400; font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 20px 18px; color: var(--an-6); }

.chiusura { text-align: center; }
.chiusura h2 { margin: 0 auto 14px; }
.chiusura .intro { margin: 0 auto 28px; }

.piede { padding: 36px 0 48px; border-top: 1px solid var(--an-2); color: var(--an-5); font-size: 14px; }
.piede .contenitore { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
.piede a { color: var(--an-6); }

.pagina-testo { padding: 56px 0 72px; }
.pagina-testo .contenitore { max-width: 760px; }
.pagina-testo h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -.03em; line-height: 1.1; margin: 0 0 8px; }
.pagina-testo h2 { font-size: 22px; margin: 36px 0 10px; }
.pagina-testo p, .pagina-testo li { color: var(--an-6); }
.pagina-testo .aggiornato { color: var(--an-5); font-size: 14px; margin-bottom: 28px; }