/* VOLT_LINE — vetrina. Un foglio solo, nessuno script, nessun font esterno:
   la pagina deve aprirsi su una connessione lenta prima che il pollice arrivi
   al pulsante di download. I due font del gioco sono un lusso che costerebbe
   due richieste a un altro dominio, percio' qui si usa lo stack di sistema. */

:root {
  --nb: #00f5ff;
  --np: #ff0090;
  --ny: #ffe600;
  --ng: #39ff14;
  --ar: #ff8800;
  --vi: #bf5af2;
  --bg: #020408;
  --bg2: #06101a;
  --testo: #dfffff;
  --tenue: rgba(223, 255, 255, 0.62);
  --bordo: rgba(223, 255, 255, 0.14);
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 700px at 50% -10%, rgba(0, 245, 255, 0.10), transparent 70%),
    radial-gradient(900px 600px at 90% 20%, rgba(255, 0, 144, 0.07), transparent 70%),
    var(--bg);
  color: var(--testo);
  font: 16px/1.65 var(--sans);
  -webkit-text-size-adjust: 100%;
}

/* La griglia di fondo e' la stessa del gioco, ferma. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}

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

.salta {
  position: absolute;
  left: -9999px;
}
.salta:focus {
  left: 12px;
  top: 12px;
  z-index: 9;
  background: var(--nb);
  color: #000;
  padding: 8px 14px;
  border-radius: 8px;
}

/* ------------------------------------------------------------------ barra */
.barra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--bordo);
  backdrop-filter: blur(6px);
}

.marchio {
  font: 800 20px/1 var(--mono);
  letter-spacing: 2px;
  text-decoration: none;
}
.m-volt { color: var(--nb); text-shadow: 0 0 12px rgba(0, 245, 255, 0.7); }
.m-us   { color: var(--np); }
.m-line { color: var(--np); text-shadow: 0 0 12px rgba(255, 0, 144, 0.7); }

.lingue details { position: relative; }
.lingue summary {
  cursor: pointer;
  list-style: none;
  font: 600 13px/1 var(--mono);
  color: var(--tenue);
  border: 1px solid var(--bordo);
  border-radius: 8px;
  padding: 8px 12px;
}
.lingue summary::-webkit-details-marker { display: none; }
.lingue ul {
  position: absolute;
  inset-inline-end: 0;
  margin: 8px 0 0;
  padding: 6px;
  list-style: none;
  background: var(--bg2);
  border: 1px solid var(--bordo);
  border-radius: 10px;
  min-width: 168px;
  max-height: 60vh;
  overflow: auto;
  z-index: 5;
}
.lingue a {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--testo);
  text-decoration: none;
  font-size: 14px;
}
.lingue a:hover, .lingue a:focus { background: rgba(0, 245, 255, 0.12); }
.lingue a[aria-current] { color: var(--nb); }

/* ------------------------------------------------------------------- eroe */
.eroe {
  text-align: center;
  padding: clamp(34px, 7vw, 76px) clamp(16px, 4vw, 40px) 24px;
  max-width: 980px;
  margin: 0 auto;
}

.pillola {
  display: inline-block;
  margin: 0 0 18px;
  font: 600 11px/1 var(--mono);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--ny);
  border: 1px solid rgba(255, 230, 0, 0.45);
  background: rgba(255, 230, 0, 0.07);
  border-radius: 999px;
  padding: 7px 14px;
}

.eroe h1 {
  margin: 0;
  font: 900 clamp(38px, 11vw, 88px)/1 var(--mono);
  letter-spacing: clamp(2px, 1vw, 8px);
}

.lede {
  margin: 18px auto 0;
  max-width: 62ch;
  color: var(--tenue);
  font-size: clamp(15px, 2.4vw, 18px);
}
.lede.piccolo { font-size: 15px; margin-bottom: 22px; }

.azioni {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 26px 0 10px;
}

.btn {
  display: inline-block;
  min-height: 48px;
  padding: 13px 24px;
  border-radius: 10px;
  border: 1.6px solid var(--nb);
  color: var(--nb);
  background: rgba(0, 245, 255, 0.06);
  font: 700 14px/1.4 var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 0 22px -6px rgba(0, 245, 255, 0.5);
}
.btn:hover, .btn:focus { background: rgba(0, 245, 255, 0.14); }
.btn.primario {
  background: var(--nb);
  color: #001015;
  box-shadow: 0 0 34px -6px rgba(0, 245, 255, 0.8);
}
.btn.dona {
  border-color: var(--np);
  color: var(--np);
  background: rgba(255, 0, 144, 0.07);
  box-shadow: 0 0 22px -6px rgba(255, 0, 144, 0.5);
}
.btn.dona:hover, .btn.dona:focus { background: rgba(255, 0, 144, 0.16); }

.nota { color: var(--tenue); font: 400 13px/1.6 var(--mono); margin: 6px 0 0; }

/* ---------------------------------------------------------------- mockup */
.mock {
  position: relative;
  margin: 34px auto 0;
  max-width: 720px;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--bordo);
  border-radius: 14px;
  background: #01060b;
  overflow: hidden;
  box-shadow: 0 24px 70px -30px rgba(0, 245, 255, 0.45);
}
.mock-griglia {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(0, 245, 255, 0.10) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: scorri 1.6s linear infinite;
}
.cavo {
  position: absolute;
  inset-inline: 0;
  height: 2px;
  filter: drop-shadow(0 0 8px currentColor);
  color: var(--nb);
  background: currentColor;
}
.c0 { top: 30%; color: var(--nb); }
.c1 { top: 55%; color: var(--np); }
.c2 { top: 80%; color: var(--ny); }

.impulso {
  position: absolute;
  left: 20%;
  top: 30%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--nb);
  border-radius: 50%;
  background: rgba(0, 245, 255, 0.35);
  box-shadow: 0 0 22px rgba(0, 245, 255, 0.9);
  animation: salta 4s ease-in-out infinite;
}
.impulso::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: #fff;
}

.blocco {
  position: absolute;
  width: 14px;
  height: 34px;
  margin-top: -17px;
  border: 2px solid #ff2d55;
  border-radius: 3px;
  background: #12040a;
  box-shadow: 0 0 16px rgba(255, 45, 85, 0.7);
  animation: passa 4s linear infinite;
}
.b1 { top: 55%; animation-delay: 0s; }
.b2 { top: 30%; animation-delay: 2s; }

.carica {
  position: absolute;
  top: 80%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  border: 2px solid var(--ng);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(57, 255, 20, 0.8);
  animation: passa 4s linear infinite;
  animation-delay: 1s;
}

@keyframes scorri { to { background-position-x: -40px; } }
@keyframes passa {
  from { left: 104%; }
  to   { left: -6%; }
}
@keyframes salta {
  0%, 38%   { top: 30%; }
  50%, 88%  { top: 55%; }
  100%      { top: 30%; }
}

/* Chi ha chiesto meno animazioni non le vede: la scena resta, ferma. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mock-griglia, .blocco, .carica, .impulso { animation: none; }
  .blocco.b1 { left: 60%; }
  .blocco.b2 { left: 84%; }
  .carica { left: 40%; }
}

/* -------------------------------------------------------------- riquadri */
.riquadro {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(30px, 6vw, 56px) clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--bordo);
}
.riquadro h2 {
  margin: 0 0 22px;
  font: 800 clamp(18px, 3.4vw, 24px)/1.25 var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nb);
}

.schede {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.schede article, .poteri article {
  border: 1px solid var(--bordo);
  border-radius: 12px;
  background: rgba(6, 16, 26, 0.7);
  padding: 18px;
}
.schede h3, .poteri h3 {
  margin: 0 0 7px;
  font: 700 14px/1.3 var(--mono);
  letter-spacing: 1px;
  color: var(--testo);
}
.schede p, .poteri p { margin: 0; color: var(--tenue); font-size: 14.5px; }

.poteri { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.p-scudo   { border-color: rgba(127, 219, 255, 0.45); }
.p-scudo h3   { color: #7fdbff; }
.p-lento   { border-color: rgba(191, 90, 242, 0.45); }
.p-lento h3   { color: var(--vi); }
.p-magnete { border-color: rgba(255, 136, 0, 0.45); }
.p-magnete h3 { color: var(--ar); }

.passi { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.passi li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: var(--tenue);
}
.passi span {
  flex: 0 0 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(0, 245, 255, 0.5);
  border-radius: 50%;
  color: var(--nb);
  font: 700 14px/1 var(--mono);
}

.spunte { margin: 0; padding: 0; list-style: none; display: grid; gap: 11px; }
.spunte li {
  position: relative;
  padding-inline-start: 26px;
  color: var(--tenue);
}
.spunte li::before {
  content: "";
  position: absolute;
  inset-inline-start: 2px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ng);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.9);
}

.sostieni { text-align: center; }
.sostieni .azioni { margin-top: 18px; }

#faq details {
  border-bottom: 1px solid var(--bordo);
  padding: 14px 0;
}
#faq summary {
  cursor: pointer;
  font: 600 15px/1.5 var(--sans);
  color: var(--testo);
}
#faq p { margin: 10px 0 0; color: var(--tenue); }

/* ------------------------------------------------------------------ piede */
.piede {
  border-top: 1px solid var(--bordo);
  padding: 30px clamp(16px, 4vw, 40px) 44px;
  text-align: center;
  color: var(--tenue);
}
.piede p { margin: 0 0 8px; font-size: 14px; }
.piede .minuto { font: 400 12.5px/1.7 var(--mono); }
.piede a { color: var(--nb); }
.piede .minuto a:first-child { color: var(--np); }

::selection { background: rgba(0, 245, 255, 0.3); }

:focus-visible {
  outline: 2px solid var(--ny);
  outline-offset: 3px;
}

/* In arabo il mockup resta orientato come il gioco: l'impulso corre verso
   sinistra anche quando il testo va verso destra. */
[dir="rtl"] .mock { direction: ltr; }