/* SEO MANTIS ARCADE - site.css
 * Un solo foglio di stile, nessun framework, nessuna @import, nessuna URL esterna.
 * Mobile-first: il telefono e' il caso normale, il desktop quello derivato.
 * Palette e contrasti WCAG verificati con gli strumenti del progetto.
 */

/* Press Start 2P, SIL Open Font License 1.1 - il testo della licenza sta in
   assets/fonts/OFL.txt, come richiede la OFL paragrafo 2. Il file e' quello
   originale, NON modificato: la clausola 3 (Reserved Font Name) vieta il nome
   "Press Start 2P" solo alle versioni modificate, e qui non ce ne sono. */
@font-face {
  font-family: "Press Start 2P";
  src: url("/assets/fonts/PressStart2P-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --fondo:      #0B0710;
  --pannello:   #2A1B3C;
  --inchiostro: #FFF7EA;
  --accento:    #FF3B1F;
  --accento2:   #00E0D5;
  --neutro:     #9A90B0;
  --nero:       #000000;

  --bordo: 3px solid var(--nero);
  --wrap: 40rem;
  --gutter: clamp(1rem, 4vw, 2rem);

  /* Il font display e' self-hostato. La pila di ripiego resta dichiarata: se
     il file non arrivasse, il sito deve restare leggibile. */
  --display: "Press Start 2P", "Courier New", ui-monospace, monospace;
  --testo: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --dati: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--inchiostro);
  font-family: var(--testo);
  font-size: 1.0625rem;
  line-height: 1.65;
  /* Il retino Ben-Day: l'elemento firma del sito, ripreso dal canvas. */
  background-image: radial-gradient(var(--pannello) 1.4px, transparent 1.5px);
  background-size: 14px 14px;
}

img { max-width: 100%; height: auto; }

.skip {
  position: absolute; left: -9999px;
  background: var(--accento2); color: var(--nero);
  padding: .6rem 1rem; font-weight: 700;
}
.skip:focus { left: .5rem; top: .5rem; z-index: 50; }

:focus-visible {
  outline: 3px solid var(--accento2);
  outline-offset: 2px;
}

/* --------------------------------------------------------------- testata */
.top {
  text-align: center;
  padding: var(--gutter) var(--gutter) .5rem;
}
.brand {
  font-family: var(--display);
  font-size: clamp(1.25rem, 7vw, 2.25rem);
  margin: 0;
  color: var(--accento2);
  text-shadow: 4px 4px 0 var(--accento);
  letter-spacing: .02em;
}
.tag {
  margin: .75rem 0 0;
  color: var(--neutro);
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

main { padding: 0 var(--gutter) 2rem; }

/* -------------------------------------------------------------- cabinato */
.cabinet { max-width: var(--wrap); margin: 0 auto 2.5rem; }

.cab-frame {
  background: var(--pannello);
  border: 5px solid var(--nero);
  border-radius: 14px;
  box-shadow: 8px 8px 0 var(--accento);
  padding: .75rem;
}

.screen-wrap {
  position: relative;
  border: var(--bordo);
  background: var(--fondo);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

#screen {
  display: block;
  width: 100%; height: 100%;
  image-rendering: pixelated;
}

/* schermate sovrapposte: testo vero, non disegnato nel canvas */
.ovl {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .6rem;
  padding: 1rem;
  text-align: center;
  /* .85 e non .66: sotto passa la dimostrazione in movimento, e un
     proiettile chiaro dietro un testo piccolo faceva scendere il
     contrasto vicino a 2:1. */
  background: rgba(11, 7, 16, .85);
}
.ovl[hidden] { display: none; }

.ovl .big {
  font-family: var(--display);
  font-size: clamp(1rem, 5.5vw, 1.7rem);
  margin: 0; color: var(--accento2);
  text-shadow: 2px 2px 0 var(--nero);
}
.ovl .sub {
  font-family: var(--display);
  font-size: clamp(.6rem, 2.9vw, .85rem);
  margin: 0; color: var(--inchiostro);
  line-height: 1.9;
}
.ovl .tiny { margin: 0; font-size: .78rem; color: var(--neutro); max-width: 30rem; }
.ovl .row { display: flex; gap: .5rem; margin: 0; }

@media (prefers-reduced-motion: no-preference) {
  .blink { animation: blink 1.1s steps(1, end) infinite; }
}
@keyframes blink { 50% { opacity: .25; } }

.initials:focus-visible { outline: 3px solid var(--accento2); outline-offset: 4px; }
.initials {
  font-family: var(--display);
  font-size: clamp(1.4rem, 8vw, 2.4rem);
  letter-spacing: .15em;
  margin: 0; color: var(--accento);
  text-shadow: 2px 2px 0 var(--nero);
}

.pad {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  width: 100%; max-width: 22rem;
}
.pad button {
  font-family: var(--dati);
  font-size: .8rem;
  min-height: 2.1rem;
  border: 2px solid var(--nero);
  background: var(--inchiostro);
  color: var(--nero);
  cursor: pointer;
  padding: 0;
}
.pad button:active { background: var(--accento2); }

/* ---------------------------------------------------------------- bottoni */
.btn {
  font-family: var(--display);
  font-size: .8rem;
  line-height: 1.4;
  min-height: 2.9rem;
  padding: .7rem 1.1rem;
  border: var(--bordo);
  background: var(--accento);
  color: var(--nero);
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--nero);
}
.btn:hover:not(:disabled) { transform: translate(1px, 1px); box-shadow: 3px 3px 0 var(--nero); }
.btn:active:not(:disabled) { transform: translate(4px, 4px); box-shadow: none; }
.btn:disabled { background: var(--neutro); color: var(--fondo); cursor: not-allowed; box-shadow: none; }
.btn.coin { background: var(--accento2); color: var(--nero); }
.btn.ghost { background: transparent; color: var(--inchiostro); box-shadow: none; }
.btn.small { font-size: .65rem; min-height: 2.2rem; padding: .4rem .7rem; }

/* -------------------------------------------------------------- HUD e comandi */
.hud {
  display: flex; flex-wrap: wrap; gap: .5rem 1rem;
  justify-content: space-between;
  font-family: var(--dati);
  font-size: .78rem;
  color: var(--neutro);
  padding: .6rem .2rem .2rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.hud b { color: var(--inchiostro); font-size: .95rem; }
.hud[hidden], .panel[hidden] { display: none; }

.panel { padding: .3rem 0 0; }
.panel-help { margin: 0 0 .6rem; font-size: .78rem; color: var(--neutro); }
.panel-help kbd {
  font-family: var(--dati); font-size: .72rem;
  border: 2px solid var(--nero); background: var(--inchiostro); color: var(--nero);
  padding: 0 .3rem;
}

.sys {
  display: grid;
  grid-template-columns: 5.5rem 1fr 3rem 3rem;
  align-items: center;
  gap: .3rem .4rem;
  margin-bottom: .5rem;
}
.sys-name {
  font-family: var(--dati); font-size: .72rem;
  letter-spacing: .06em; color: var(--inchiostro);
}
.cells {
  line-height: 1;
  padding-top: .28rem;
  color: var(--accento2);
  background: var(--fondo);
  border: 2px solid var(--nero);
  padding: .1rem .5rem;
  overflow: hidden;
}
/* Bersagli grandi: 2.75rem e' circa 44px, il minimo per un dito. */
.pm {
  min-height: 2.75rem; min-width: 2.75rem;
  font-size: 1.3rem; font-weight: 700;
  border: var(--bordo);
  background: var(--inchiostro); color: var(--nero);
  cursor: pointer;
}
.pm:active:not(:disabled) { background: var(--accento2); }
.pm:disabled { background: var(--pannello); color: var(--neutro); cursor: not-allowed; }

.cab-foot { margin: .6rem 0 0; text-align: right; }

.noscript {
  margin-top: 1rem; padding: .9rem 1rem;
  border: var(--bordo); background: var(--pannello);
  font-size: .9rem;
}

/* ------------------------------------------------------------- classifica */
.board { max-width: var(--wrap); margin: 0 auto 3rem; }
.board h2, #read h2 {
  font-family: var(--display);
  font-size: clamp(.95rem, 4.5vw, 1.25rem);
  color: var(--accento2);
  text-shadow: 2px 2px 0 var(--nero);
  margin: 2rem 0 1rem;
  line-height: 1.7;
}
table {
  width: 100%; border-collapse: collapse;
  border: var(--bordo); background: var(--pannello);
  font-family: var(--dati); font-size: .9rem;
}
th, td { padding: .5rem .6rem; text-align: left; border-bottom: 2px solid var(--nero); }
thead th {
  background: var(--accento); color: var(--nero);
  font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
}
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }
td.ini { color: var(--accento2); letter-spacing: .1em; }
table.data { margin-bottom: 1rem; }

/* ------------------------------------------------------------------ testo */
#read { max-width: var(--wrap); margin: 0 auto; }
h1 {
  font-family: var(--display);
  font-size: clamp(1.05rem, 5.5vw, 1.6rem);
  line-height: 1.75;
  color: var(--inchiostro);
  text-shadow: 3px 3px 0 var(--accento);
  margin: 2.5rem 0 1rem;
}
.lede { font-size: 1.15rem; color: var(--inchiostro); }
p { margin: 0 0 1rem; }
a { color: var(--accento2); text-underline-offset: 0.16em; text-decoration-thickness: 1px; }
a:hover { color: var(--inchiostro); }
strong { color: var(--accento2); }
em { color: var(--inchiostro); }
code {
  font-family: var(--dati); font-size: .9em;
  background: var(--pannello); border: 1px solid var(--nero);
  padding: 0 .25rem;
}

.rules { margin: 0 0 1rem; }
.rules dt {
  font-family: var(--dati); font-size: .8rem;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--accento); margin-top: .9rem;
}
.rules dd { margin: .2rem 0 0; }

ul.plain { margin: 0 0 1rem; padding-left: 1.1rem; }
ul.plain li { margin-bottom: .4rem; }

.with-photo { margin: 0 0 1rem; }
.with-photo img {
  display: block; width: 100%; max-width: 22rem;
  border: 5px solid var(--nero);
  box-shadow: 7px 7px 0 var(--accento2);
}
.credit {
  display: block; margin-top: .7rem;
  font-family: var(--dati); font-size: .72rem; color: var(--neutro);
}

/* ------------------------------------------------------------------ fondo */
footer {
  border-top: var(--bordo);
  background: var(--pannello);
  padding: var(--gutter);
  font-size: .82rem;
  color: var(--inchiostro);
  text-align: center;
}
footer p { margin: 0 0 .5rem; }
footer p:last-child { margin-bottom: 0; }
.thanks {
  font-size: .78rem; color: var(--neutro); max-width: 34rem;
  margin-left: auto; margin-right: auto;
}
.thanks em { color: var(--inchiostro); font-style: italic; }
.thanks strong { color: var(--accento); }
.fbrand { font-family: var(--dati); text-transform: uppercase; letter-spacing: .06em; color: var(--accento2); }


/* ---------------------------------------------- il cartello sopra la partita */
/* Non e' una schermata: la battaglia si vede sotto, ma il nemico aspetta. */
.prompt {
  position: absolute; left: 0; right: 0; bottom: 0; top: auto;
  display: flex; flex-direction: column; align-items: center; gap: .3rem;
  padding: .7rem .8rem 1rem;
  text-align: center;
  background: linear-gradient(to top, rgba(11,7,16,.96) 60%, rgba(11,7,16,0));
  /* Non intercetta i click: e' un cartello, non un pannello. */
  pointer-events: none;
}
.prompt[hidden] { display: none; }
.prompt-big {
  font-family: var(--display); font-size: clamp(.72rem, 3.6vw, 1rem);
  margin: 0; color: var(--accento2); text-shadow: 2px 2px 0 var(--nero);
}
.prompt-small { margin: 0; font-size: .8rem; color: var(--inchiostro); max-width: 26rem; }
.prompt-small b { color: var(--accento); }
.prompt-arrow { margin: 0; color: var(--accento); font-size: 1.1rem; line-height: 1; }
@media (prefers-reduced-motion: no-preference) {
  .prompt-arrow { animation: giu 1s ease-in-out infinite; }
}
@keyframes giu { 50% { transform: translateY(5px); } }

/* -------------------------------------------------- celle come vere caselle */
.slot {
  display: inline-block; width: 1.05rem; height: 1.05rem;
  margin-right: .3rem; vertical-align: middle;
  border: 2px solid var(--nero);
  background: rgba(154,144,176,.18);
}
.slot.on  { background: var(--accento2); }
.slot.dim { background: rgba(0,224,213,.32); }

/* --------------------------------------- cosa fa questo sistema, in chiaro */
.sys-fx {
  grid-column: 2 / -1;
  font-size: .72rem; color: var(--neutro);
  margin: -.1rem 0 .35rem;
}

/* --------------------------- l'energia non spesa deve dare fastidio a vederla */
.hud .free { color: var(--neutro); }
.hud .free.urgente { color: var(--accento); }
.hud .free.urgente b { color: var(--accento); }
@media (prefers-reduced-motion: no-preference) {
  .hud .free.urgente b { animation: pulsa 1s ease-in-out infinite; }
  .pm.invita { animation: pulsa 1.4s ease-in-out infinite; }
}
@keyframes pulsa { 50% { opacity: .35; } }
.pm.invita { background: var(--accento2); }

/* -------------------------------------------------------------- da 40rem */
@media (min-width: 44rem) {
  .cab-frame { padding: 1.1rem; }
  .sys { grid-template-columns: 6.5rem 1fr 3.2rem 3.2rem; }
  .sys-fx { font-size: .76rem; }
  .with-photo { display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; align-items: start; }
  .with-photo img { max-width: 18rem; }
}