/* studiomatica — finta pagina di errore che si scioglie */

:root {
  --bg: #fff;
  --fg: #5f6368;
  --title: #202124;
  --link: #1a73e8;
  --btn-bg: #1a73e8;
  --btn-fg: #fff;
  --btn-line: #dadce0;

  --void: #0b0618;
  --neon: #33ff66;
  --pink: #ff2e88;
  --term: #33ff66;
  --term-dim: rgba(51, 255, 102, .5);
  --term-bg: #020602;

  /* impostati da js/sequence.js */
  --cx: 50vw;
  --cy: 45vh;
  --r: 0px;
  --hx: 50vw;
  --hy: 45vh;
  --melt: 0;
  --sub-y: 70vh;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1d1f;
    --fg: #bdc1c6;
    --title: #9aa0a6;
    --link: #8ab4f8;
    --btn-bg: #8ab4f8;
    --btn-fg: #202124;
    --btn-line: #5f6368;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  cursor: pointer; /* un clic ovunque fa partire lo spettacolo */
}
/* nei campi del biglietto resta il cursore di testo */
input, textarea { cursor: text; }
.js body { overflow: hidden; background: var(--void); }
.defs { position: absolute; }

/* ---------- finta pagina di Chrome ---------- */

.js .error-wrap { position: fixed; inset: 0; }
.fx .error-wrap, .fx .hole-ring { filter: url(#melt); }

.error {
  background: var(--bg);
  color: var(--fg);
  font-size: 15px;
  line-height: 1.55;
  padding: max(16px, 16vh) 16px 16px;
}
.js .error {
  position: absolute;
  inset: 0;
  -webkit-mask-image: radial-gradient(circle var(--r) at var(--hx) var(--hy), transparent 97%, #000 100%);
  mask-image: radial-gradient(circle var(--r) at var(--hx) var(--hy), transparent 97%, #000 100%);
}
.error-inner {
  max-width: 600px;
  margin: 0 auto;
  transform: translateY(calc(var(--melt) * 36px));
  transition: opacity .9s;
}
.text-gone .error-inner { opacity: 0; }
.error-icon { display: block; width: 36px; height: 38px; color: var(--fg); }
.error h1 {
  color: var(--title);
  font-size: 24px;
  font-weight: 500;
  margin: 46px 0 16px;
}
.error strong { color: var(--fg); }
.error .try { margin: 22px 0 6px; }
.error ul { margin: 0; padding-left: 40px; }
.error .link { color: var(--link); cursor: pointer; }
.error .code { font-size: 12px; margin: 22px 0 0; text-transform: uppercase; }
.buttons { display: flex; justify-content: space-between; margin-top: 50px; }
.buttons button {
  font: 500 14px/1 system-ui, -apple-system, sans-serif;
  padding: 10px 16px;
  border-radius: 20px;
  cursor: pointer;
}
.btn-details { background: transparent; color: var(--link); border: 1px solid var(--btn-line); }
.btn-reload { background: var(--btn-bg); color: var(--btn-fg); border: 1px solid var(--btn-bg); }
.details-text { margin-top: 18px; }

/* ---------- il buco e cosa c'è dentro ---------- */

.void {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: #000;
}

.hole-ring {
  position: fixed;
  left: var(--hx);
  top: var(--hy);
  width: calc(var(--r) * 2);
  height: calc(var(--r) * 2);
  translate: -50% -50%;
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--neon), 0 0 34px 8px var(--neon), inset 0 0 50px 14px #000;
  pointer-events: none;
  opacity: 0;
}
.open .hole-ring { opacity: 1; }

/* ---------- la testa ---------- */

.head {
  position: absolute;
  left: var(--cx);
  top: var(--cy);
  width: calc(var(--r) * 1.5);
  translate: -50% -44%;
  transform: translateY(90%) scale(.5);
  opacity: 0;
  transition: transform .9s steps(7), opacity .3s;
}
.head-in .head { transform: none; opacity: 1; }
.head-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
}
.head::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(transparent 0 2px, rgba(0, 0, 0, .3) 2px 4px);
  pointer-events: none;
}

/* ---------- braccio e biglietto ---------- */

.arm {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0;
}
.card-out .arm, .card-moving .arm { opacity: 1; }
.arm-g { filter: drop-shadow(0 0 4px rgba(51, 255, 102, .5)); }
.arm-g polygon, .arm-g circle { stroke: var(--neon); stroke-width: 1.2; stroke-linejoin: round; }
.shoulder, .elbow { fill: #020a05; }
.upper-l, .fore-l { fill: #06200e; }
.upper-d, .fore-d { fill: #020a05; }
.folds { fill: none; stroke: var(--neon); stroke-width: 1.1; stroke-linecap: round; opacity: .85; }   /* fasce ad anello */
.arm-g .shirt { fill: #020a05; stroke: #c8ffd6; }

/* mano: dorso dietro il biglietto, dita davanti — a linee neon come la testa */
.hand {
  position: absolute;
  width: 120px;
  height: 110px;
  left: -56px;
  top: calc(88% - 55px);
  pointer-events: none;
  transform-origin: 56px 55px;
}
.hand-back { z-index: 0; }
.hand-front { z-index: 2; filter: drop-shadow(0 0 3px rgba(51, 255, 102, .55)); }
.hand polygon, .hand rect { stroke: rgba(51, 255, 102, .55); stroke-width: .8; stroke-linejoin: round; }
.hand .skin-l { fill: #9497e6; }
.hand .skin-m { fill: #5a5ec4; }
.hand .skin-d { fill: #2b2e8a; }
.hand .wrap { fill: #2b2e8a; stroke: none; opacity: .7; }
.hand .nail { fill: #d3d5ff; stroke: none; opacity: .8; }
.hand .crease { stroke: #2b2e8a; stroke-width: 1; }
.hand circle { fill: none; }
/* stile wireframe: mano scura con bordi neon */
.stile-wireframe .hand .skin-l { fill: #0a3316; }
.stile-wireframe .hand .skin-m { fill: #04200c; }
.stile-wireframe .hand .skin-d, .stile-wireframe .hand .wrap { fill: #010402; }
.stile-wireframe .hand .nail { fill: none; stroke: #c8ffd6; }
.stile-wireframe .hand .crease { stroke: var(--neon); }
.stile-wireframe .hand polygon, .stile-wireframe .hand rect { stroke: var(--neon); stroke-width: 1; }
/* stile mosaico: mano dorata */
.stile-mosaico .hand .skin-l { fill: #ffc93a; }
.stile-mosaico .hand .skin-m { fill: #c98a14; }
.stile-mosaico .hand .skin-d, .stile-mosaico .hand .wrap { fill: #6e4206; }
.stile-mosaico .hand .nail { fill: #fff0a0; }
.stile-mosaico .hand .crease { stroke: #6e4206; }
.stile-mosaico .hand polygon, .stile-mosaico .hand rect { stroke: #1f1203; }
.stile-mosaico .hand-front { filter: drop-shadow(0 0 3px rgba(255, 201, 58, .45)); }
.no-js .hand { display: none; }

.js .card-wrap {
  position: fixed;
  left: 0;
  top: 0;
  width: min(380px, calc(100vw - 32px));
  visibility: hidden;
}
.card-out .card-wrap, .card-moving .card-wrap { visibility: visible; }
.no-js .card-wrap { max-width: 392px; margin: 0 auto 32px; padding: 0 16px; }
.js .card { padding-left: 54px; z-index: 1; }

/* telefono: la mano arriva dall'alto e prende il bordo superiore */
@media (max-width: 899px) {
  .hand { left: calc(35% - 56px); top: -55px; transform: rotate(60deg); }
  .js .card { padding-left: 20px; padding-top: 54px; }
}

/* biglietto da terminale: nero e verde */
.card {
  position: relative;
  background: var(--term-bg);
  color: var(--term);
  border: 1px solid var(--term);
  border-radius: 4px;
  padding: 18px 20px 20px;
  box-shadow: 0 0 24px rgba(51, 255, 102, .25), 0 20px 44px rgba(0, 0, 0, .6);
  font: 15px/1.4 ui-monospace, Menlo, monospace;
  text-shadow: 0 0 6px rgba(51, 255, 102, .45);
  max-height: calc(100dvh - 32px);
  overflow: auto;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(transparent 0 2px, rgba(0, 0, 0, .28) 2px 3px);
  pointer-events: none;
}
.card ::selection { background: var(--term); color: #000; }
.card header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--term-dim);
}
.logo { font-weight: 700; font-size: 18px; }
.logo::before { content: "> "; opacity: .6; }
.logo::after { content: "_"; animation: cursor 1s steps(1) infinite; }
@keyframes cursor { 50% { opacity: 0; } }
.card label {
  display: block;
  margin-top: 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.card label::before { content: "$ "; opacity: .6; }
.card input, .card textarea {
  display: block;
  width: 100%;
  margin-top: 2px;
  padding: 6px 2px;
  border: 0;
  border-bottom: 1px solid var(--term-dim);
  border-radius: 0;
  background: transparent;
  color: var(--term);
  caret-color: var(--term);
  font: inherit;
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  text-shadow: inherit;
}
.card textarea { resize: vertical; }
.card input:focus, .card textarea:focus {
  outline: none;
  border-color: var(--term);
  background: rgba(51, 255, 102, .07);
}
.card input:-webkit-autofill {
  -webkit-text-fill-color: var(--term);
  box-shadow: inset 0 0 0 40px var(--term-bg);
}
.card .trap { position: absolute; left: -9999px; }
.note { margin: 12px 0 0; font-size: 11px; opacity: .6; }
.card-error { margin: 8px 0 0; color: #ff4d4d; font-size: 13px; text-shadow: none; }
.card-error:empty { display: none; }
.card button {
  width: 100%;
  margin-top: 14px;
  padding: 11px;
  border: 1px solid var(--term);
  border-radius: 2px;
  background: transparent;
  color: var(--term);
  font: inherit;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  text-shadow: inherit;
  cursor: pointer;
}
.card button:hover, .card button:focus-visible { background: var(--term); color: #000; text-shadow: none; outline: none; }
.card button:disabled { opacity: .6; cursor: wait; }
.card-thanks { margin: 18px 0 4px; font-size: 17px; }
.card.sent > :not(header, .card-thanks) { display: none; }

/* ---------- sottotitoli ---------- */

.subs {
  position: fixed;
  left: 50%;
  top: var(--sub-y);
  translate: -50% 0;
  width: max-content;
  max-width: min(640px, calc(100vw - 32px));
  margin: 0;
  padding: 8px 14px;
  background: #000;
  color: var(--neon);
  font: 600 17px/1.35 ui-monospace, Menlo, monospace;
  text-align: center;
  opacity: 0;
  pointer-events: none;
}
.subs.show { opacity: 1; }


/* ---------- senza JavaScript ---------- */

.no-js .void, .no-js .hole-ring, .no-js .arm, .no-js .subs, .no-js .buttons { display: none; }
.no-js .error { padding-bottom: 32px; }

/* ---------- movimento ridotto ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}