/* ============================================================================
 * Gioco "Identifica!" · style.css
 * Naturalist Cabinet · museum field-card edition
 * Riusa variabili globali di /static/css/style.css
 * ========================================================================== */

.gioco-body {
  background:
    repeating-linear-gradient(0deg, transparent 0 35px, rgba(140,122,62,0.04) 35px 36px),
    radial-gradient(ellipse at top, rgba(166,54,27,0.04) 0%, transparent 50%),
    var(--bg-page);
  min-height: 100vh;
}

.gioco-main {
  max-width: 980px;
  margin: 40px auto;
  padding: 0 20px;
}

/* ============================================
 * FULLSCREEN MODE — quando il gioco è attivo
 * Body riceve .gioco-fullscreen da game.js
 * ============================================ */
.gioco-fullscreen .site-banner,
.gioco-fullscreen .site-footer {
  display: none !important;
}
.gioco-fullscreen.gioco-body {
  /* viewport pulita, niente scroll banner */
  min-height: 100svh;
}
.gioco-fullscreen .gioco-main {
  margin: 0 auto;
  padding: 16px 16px 32px;
  max-width: 880px;
}

/* ============================================
 * INTRO CARD — field-notebook stile
 * ============================================ */
.intro-card {
  background: var(--bg-card);
  border: 1px solid var(--bdr-strong);
  border-radius: 4px;
  padding: 56px 48px;
  position: relative;
  box-shadow:
    0 20px 40px -20px rgba(18,16,12,0.18),
    inset 0 0 0 1px rgba(204,179,97,0.08);
}
.intro-card::before {
  content: "Nº 042 · campo · forum";
  position: absolute; top: 12px; right: 16px;
  font: 500 11px/1 var(--font-mono);
  color: var(--gold-dark);
  letter-spacing: 0.15em; opacity: 0.7;
}
.intro-title {
  font: 800 64px/0.95 var(--font-display);
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.02em;
}
.intro-title .bang {
  color: var(--rust);
  font-style: italic;
}
.intro-subtitle {
  font: italic 400 22px/1.3 var(--font-display);
  color: var(--gold-dark);
  margin: 4px 0 0;
}
.intro-divider {
  margin: 28px 0;
  text-align: center;
  font: 500 16px/1 var(--font-mono);
  color: var(--rust);
  opacity: 0.5;
  letter-spacing: 0.6em;
}
.intro-lead {
  font: 400 17px/1.6 var(--font-body);
  color: var(--txt);
  max-width: 60ch;
  margin: 0 auto 32px;
  text-align: center;
}
.intro-rules {
  font: 400 15px/1.7 var(--font-body);
  color: var(--txt);
  max-width: 50ch;
  margin: 0 auto 32px;
  padding-left: 24px;
}
.intro-rules li { margin-bottom: 8px; }
.intro-rules strong { color: var(--rust); font-weight: 700; }
.intro-cta-wrap { text-align: center; margin-top: 36px; }
.intro-cta {
  background: var(--rust);
  color: #fff;
  font: 700 17px/1 var(--font-display);
  padding: 18px 36px;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.02em;
  box-shadow: 0 8px 16px -6px rgba(166,54,27,0.4);
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.intro-cta:hover { transform: translateY(-1px); box-shadow: 0 12px 22px -8px rgba(166,54,27,0.55); background: #921e0a; }
.intro-cta:active { transform: translateY(0); }
.intro-login-note { margin-top: 14px; font: 400 13px/1.4 var(--font-meta); color: var(--txt-dim); }
.intro-login-note a { color: var(--rust); }

/* ============================================
 * INTRO LEADERBOARD — top-20 in cima alla pagina del gioco
 * ============================================ */
.intro-leaderboard {
  margin: 28px auto 0;
  max-width: 560px;
  background: var(--bg-card-alt);
  border: 1px solid var(--bdr);
  border-radius: 4px;
  padding: 18px 22px;
}
.intro-leaderboard__head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--bdr-soft);
}
.intro-leaderboard__title {
  font: 800 18px/1 var(--font-display);
  color: var(--rust);
  margin: 0;
  letter-spacing: 0.04em;
}
.intro-leaderboard__me {
  font: italic 500 12px/1 var(--font-meta);
  color: var(--gold-dark);
}
.intro-leaderboard__list {
  list-style: none;
  padding: 0; margin: 0;
  max-height: 360px;
  overflow-y: auto;
}
.intro-leaderboard__list li {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 7px 0;
  border-bottom: 1px solid var(--bdr-soft);
  font: 500 13px/1.2 var(--font-body);
}
.intro-leaderboard__list li:last-child { border-bottom: 0; }
.intro-leaderboard__list .lb-rank {
  font: 700 13px/1 var(--font-mono);
  color: var(--gold-dark);
  text-align: right;
}
.intro-leaderboard__list .lb-rank.gold { color: gold; font-size: 15px; }
.intro-leaderboard__list .lb-rank.silver { color: silver; font-size: 15px; }
.intro-leaderboard__list .lb-rank.bronze { color: #cd7f32; font-size: 15px; }
.intro-leaderboard__list .lb-username { font-weight: 600; }
.intro-leaderboard__list .lb-meta {
  display: block;
  font: 500 10px/1.2 var(--font-mono);
  color: var(--txt-dim);
  margin-top: 2px;
}
.intro-leaderboard__list .lb-points {
  font: 700 14px/1 var(--font-display);
  color: var(--rust);
  text-align: right;
}
.intro-leaderboard__loading {
  text-align: center;
  font: italic 500 13px/1.4 var(--font-body);
  color: var(--txt-dim);
  padding: 24px !important;
  grid-template-columns: 1fr !important;
}
.intro-cta-wrap--top { margin-top: 20px; }

/* Disclaimer in fondo all'intro: identificazione fotografica è soggetta a limiti */
.intro-disclaimer {
  margin: 24px auto 0;
  max-width: 56ch;
  padding: 14px 18px;
  background: rgba(204,179,97,0.08);
  border-left: 3px solid var(--gold-dark);
  border-radius: 0 2px 2px 0;
  font: italic 400 14px/1.55 var(--font-body);
  color: var(--txt);
}
.intro-disclaimer strong {
  font-style: normal;
  color: var(--rust);
  letter-spacing: 0.02em;
}

/* ============================================
 * HUD top — sticky
 * ============================================ */
.hud {
  display: grid;
  /* desktop: livello | punti(1fr) | indicators(streak+lives) | Classifica | Esci */
  grid-template-columns: auto 1fr auto auto auto;
  gap: 12px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--bdr);
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 16px;
  position: sticky; top: 8px; z-index: 50;
  box-shadow: 0 4px 12px -6px rgba(18,16,12,0.18);
}
.hud__level { display: flex; align-items: center; gap: 12px; }
.hud__level-icon { font-size: 26px; line-height: 1; }
.hud__level-text { display: flex; flex-direction: column; line-height: 1.1; }
.hud__level-name {
  font: 700 14px/1 var(--font-display);
  color: var(--rust);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.hud__username {
  font: 500 11px/1.2 var(--font-meta);
  color: var(--txt-dim);
  margin-top: 4px;
}
.lb-modtag {
  display: inline-block;
  margin-left: 6px;
  font: 700 9px/1 var(--font-mono);
  color: var(--gold-dark);
  background: color-mix(in srgb, var(--gold-dark) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--gold-dark) 30%, transparent);
  padding: 2px 5px;
  border-radius: 2px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  vertical-align: middle;
}
.hud__demo-badge {
  display: inline-block;
  margin-top: 4px;
  font: 700 9px/1 var(--font-mono);
  color: var(--gold-dark);
  background: color-mix(in srgb, var(--gold-dark) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--gold-dark) 35%, transparent);
  padding: 3px 7px;
  border-radius: 2px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  width: fit-content;
}
.hud__points {
  display: flex; flex-direction: column; align-items: center;
}
.hud__points-label {
  font: 500 10px/1 var(--font-mono);
  color: var(--txt-dim);
  text-transform: uppercase; letter-spacing: 0.18em;
}
.hud__points-value {
  font: 700 28px/1 var(--font-display);
  color: var(--ink);
  margin-top: 2px;
}
.hud__streak {
  display: flex; align-items: center; gap: 4px;
  background: rgba(166,54,27,0.10);
  border: 1px solid var(--rust);
  border-radius: 16px;
  padding: 4px 10px;
  font: 700 14px/1 var(--font-meta);
  color: var(--rust);
  transition: transform .15s ease, box-shadow .15s ease;
}
.hud__streak-icon { font-size: 14px; display: inline-block; }
/* "Acceso" — quando streak >= 3, badge si gonfia e brilla; fiamma ondeggia */
.hud__streak.is-hot {
  background: linear-gradient(135deg, rgba(166,54,27,0.22), rgba(204,179,97,0.22));
  box-shadow: 0 0 0 3px rgba(166,54,27,0.18), 0 0 16px -2px rgba(166,54,27,0.5);
  transform: scale(1.06);
}
.hud__streak.is-hot .hud__streak-icon {
  animation: streak-flame 0.9s ease-in-out infinite alternate;
}
@keyframes streak-flame {
  from { transform: rotate(-6deg) scale(1);    filter: drop-shadow(0 0 2px rgba(166,54,27,0.6)); }
  to   { transform: rotate( 6deg) scale(1.18); filter: drop-shadow(0 0 5px rgba(255,140,40,0.9)); }
}
/* Pulse one-shot quando lo streak SI ACCENDE (passa da <3 a >=3) */
.hud__streak.just-lit {
  animation: streak-ignite .55s cubic-bezier(.2,1.4,.4,1);
}
@keyframes streak-ignite {
  0%   { transform: scale(1);    box-shadow: 0 0 0 0 rgba(166,54,27,0.6); }
  40%  { transform: scale(1.32); box-shadow: 0 0 0 14px rgba(166,54,27,0); }
  100% { transform: scale(1.06); box-shadow: 0 0 0 3px rgba(166,54,27,0.18), 0 0 16px -2px rgba(166,54,27,0.5); }
}
@media (prefers-reduced-motion: reduce) {
  .hud__streak.is-hot .hud__streak-icon { animation: none; }
  .hud__streak.just-lit { animation: none; }
}
.hud__leaderboard-btn {
  background: transparent;
  border: 1px solid var(--bdr);
  color: var(--txt);
  font: 500 13px/1 var(--font-meta);
  padding: 8px 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .12s ease;
}
.hud__leaderboard-btn:hover { border-color: var(--rust); color: var(--rust); }
.hud__exit-btn {
  background: transparent;
  border: 1px solid var(--bdr);
  color: var(--txt-dim);
  font: 500 13px/1 var(--font-meta);
  padding: 8px 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .12s ease, color .12s ease, background .12s ease;
}
.hud__exit-btn:hover {
  border-color: var(--rust);
  color: #fff;
  background: var(--rust);
}

.progress-rail {
  position: relative;
  height: 6px;
  background: var(--bg-card-3);
  border-radius: 3px;
  margin-bottom: 24px;
  overflow: hidden;
}
.progress-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(to right, var(--gold), var(--rust));
  transition: width .4s ease;
}
.progress-label {
  position: absolute; right: 0; top: 10px;
  font: 500 11px/1 var(--font-mono);
  color: var(--txt-dim);
}

/* ============================================
 * QUESTION CARD — main game card
 * (override global .card { display: flex } da bacheca)
 * ============================================ */
.gioco-play .card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--bdr-strong);
  border-radius: 4px;
  padding: 32px;
  margin-bottom: 24px;
  position: relative;
  flex-direction: column;
}
/* Rispetta attribute hidden anche dove il display: block è esplicito */
.gioco-play .card[hidden],
.game-over[hidden] {
  display: none !important;
}
.gioco-play .card:hover {
  /* annulla l'hover lift della .card globale: la nostra card non è cliccabile */
  transform: none;
  border-color: var(--bdr-strong);
  box-shadow: none;
}
/* Diff originale in alto (legacy, non più usato) */
.card__diff:not(.card__diff--bottom) {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--bdr-soft);
}
/* Diff in basso — metadata discreto, museum-card stile */
.card__diff--bottom {
  display: flex; align-items: center; gap: 10px;
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px dashed var(--bdr-soft);
  justify-content: flex-start;
}
.diff-meta-label {
  font: 500 10px/1 var(--font-mono);
  color: var(--txt-dim);
  text-transform: uppercase; letter-spacing: 0.2em;
}
.diff-stars {
  font: 14px/1 system-ui;
  letter-spacing: 3px;
  color: var(--rust);
}
.diff-label {
  font: italic 500 12px/1 var(--font-body);
  color: var(--gold-dark);
  margin-left: auto;
}

.card__image-wrap {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-height: 240px;
  background: #1a1a18;
  border: 1px solid var(--bdr);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 20px;
  /* block (non flex): l'img usa width:100% naturalmente,
     senza problemi di intrinsic size flex */
  text-align: center;
}
.card__image-wrap .image-loading:not([hidden]) {
  /* loading centrato verticalmente con padding */
  display: block;
  padding: 80px 24px;
}
.card__image-wrap .image-loading[hidden] { display: none !important; }
.image-loading {
  font: italic 500 14px/1 var(--font-body);
  color: #c9b46a;
  padding: 24px;
}
.card__image {
  display: block;
  width: 100%;
  min-width: 0;       /* evita che flex parent erediti intrinsic img size */
  max-width: 100%;
  height: auto;
  max-height: 60svh;
  object-fit: contain;
  background: #1a1a18;
}
.card__source {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(18,16,12,0.7);
  color: #fff;
  font: 500 12px/1 var(--font-meta);
  padding: 6px 10px;
  border-radius: 2px;
  text-decoration: none;
  backdrop-filter: blur(4px);
}
.card__source:hover { background: var(--rust); }

.card__prompt { margin-bottom: 20px; text-align: center; }
.gioco-play .card__title {
  font: 700 24px/1.2 var(--font-display);
  color: var(--ink);
  margin: 0 0 8px;
  /* annulla regole specifiche bacheca */
  letter-spacing: -0.01em;
}
.card__subtitle {
  font: italic 400 14px/1.4 var(--font-body);
  color: var(--gold-dark);
  background: rgba(204,179,97,0.10);
  padding: 8px 12px;
  border-radius: 2px;
  display: inline-block;
}

.options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.option-btn {
  background: var(--bg-card-alt);
  border: 1px solid var(--bdr);
  color: var(--txt);
  font: 500 15px/1.3 var(--font-body);
  padding: 18px 20px;
  border-radius: 2px;
  cursor: pointer;
  text-align: left;
  transition: all .12s ease;
  font-style: italic; /* nomi scientifici in corsivo */
  position: relative;
}
/* Hover SOLO su pointer reale (desktop): su iOS Safari il :hover resta "sticky"
   dopo un tap → il bottone della question precedente passa il bordo rust al
   nuovo bottone nella stessa posizione, che sembra preselezionato in rosso. */
@media (hover: hover) and (pointer: fine) {
  .option-btn:hover:not(:disabled) {
    border-color: var(--rust);
    background: rgba(166,54,27,0.05);
    transform: translateY(-1px);
  }
}
.option-btn:disabled { cursor: default; opacity: 0.7; }
.option-btn.is-correct {
  background: rgba(46,125,50,0.12);
  border-color: #2e7d32;
  color: #1b5e20;
}
.option-btn.is-wrong {
  background: rgba(166,54,27,0.12);
  border-color: var(--rust);
  color: #8b1e10;
}
/* crowdsource (foto senza ground truth): feedback neutro gold per dire "click registrato" */
.option-btn.is-recorded {
  background: rgba(204,179,97,0.14);
  border-color: var(--gold-dark);
  color: var(--gold-dark);
}
.option-btn.was-correct-answer {
  border-color: #2e7d32;
  border-width: 2px;
}

/* Tasto "Non lo so" — secondario, link-style */
.options-aux {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}
.btn-skip {
  background: transparent;
  border: 1px dashed var(--bdr);
  color: var(--txt-dim);
  font: italic 500 13px/1 var(--font-body);
  padding: 10px 18px;
  border-radius: 2px;
  cursor: pointer;
  transition: color .12s ease, border-color .12s ease, background .12s ease;
}
.btn-skip:hover:not(:disabled) {
  color: var(--gold-dark);
  border-color: var(--gold-dark);
  background: rgba(204,179,97,0.06);
}
.btn-skip:disabled { opacity: 0.5; cursor: default; }

/* ============================================
 * MOD LABEL — closed beta (censimento moderatori)
 * Visibile solo se /gioco/api.php?action=stats restituisce is_mod=true
 * ============================================ */
.mod-label {
  margin-top: 20px;
  padding: 14px 16px;
  background: rgba(204,179,97,0.06);
  border: 1px dashed var(--gold-dark);
  border-radius: 4px;
}
.mod-label__head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.mod-label__badge {
  font: 700 10px/1 var(--font-mono);
  color: #fff;
  background: var(--gold-dark);
  padding: 4px 8px;
  border-radius: 2px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.mod-label__hint {
  font: italic 500 13px/1.3 var(--font-body);
  color: var(--gold-dark);
}
.mod-label__row {
  display: flex; gap: 8px;
  align-items: stretch;
}
.mod-label__input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--bdr);
  color: var(--txt);
  font: italic 500 14px/1 var(--font-body);
  padding: 10px 12px;
  border-radius: 2px;
  min-width: 0;
}
.mod-label__input:focus {
  outline: none;
  border-color: var(--rust);
}
.mod-label__input:disabled { opacity: 0.55; cursor: default; }
.mod-label__btn {
  background: var(--gold-dark);
  color: #fff;
  border: 0;
  font: 700 13px/1 var(--font-display);
  padding: 0 16px;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: background .12s ease;
}
.mod-label__btn:hover:not(:disabled) { background: var(--rust); }
.mod-label__btn:disabled { opacity: 0.55; cursor: default; }
.mod-label__discard-row {
  margin-top: 12px;
  display: flex;
  justify-content: center;
}
.mod-label__discard {
  background: var(--rust);
  border: 1px solid var(--rust);
  color: #fff;
  font: 700 13px/1 var(--font-display);
  padding: 12px 22px;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 10px -4px rgba(166,54,27,0.5);
  transition: background .12s ease, transform .12s ease, box-shadow .12s ease;
}
@media (hover: hover) and (pointer: fine) {
  .mod-label__discard:hover:not(:disabled) {
    background: #921e0a;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px -4px rgba(166,54,27,0.6);
  }
}
.mod-label__discard:active:not(:disabled) { transform: translateY(0); }
.mod-label__discard:disabled { opacity: 0.45; cursor: default; box-shadow: none; }
.mod-label__status {
  margin: 8px 0 0;
  font: 500 12px/1.3 var(--font-mono);
  color: var(--txt-dim);
}
.mod-label__status.ok { color: #2e7d32; }
.mod-label__status.err { color: var(--rust); }
@media (max-width: 640px) {
  .mod-label__row { flex-direction: column; }
  .mod-label__btn { padding: 12px 16px; }
}

/* Lives indicator nell'HUD — 3 pallini che si svuotano */
.hud__indicators {
  display: flex; flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.hud__lives {
  display: flex; gap: 4px; align-items: center;
}
.hud__lives .life {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--rust);
  box-shadow: 0 0 0 1px rgba(166,54,27,0.3);
  transition: background .25s ease, transform .25s ease;
}
.hud__lives .life.lost {
  background: transparent;
  transform: scale(0.7);
}

/* Game Over card — solenne, museum-card style */
.game-over {
  background: var(--bg-card);
  border: 2px solid var(--ink);
  border-radius: 4px;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  box-shadow:
    0 24px 48px -16px rgba(18,16,12,0.25),
    inset 0 0 0 1px rgba(204,179,97,0.1);
}
.game-over::before {
  content: "Nº " attr(data-run-id) " · run conclusa";
  content: "run conclusa · sessione";
  position: absolute; top: 14px; right: 18px;
  font: 500 10px/1 var(--font-mono);
  color: var(--gold-dark);
  letter-spacing: 0.18em; opacity: 0.7;
}
.game-over__crest {
  font-size: 48px; line-height: 1;
  margin-bottom: 12px;
  filter: grayscale(0.4);
}
.game-over__title {
  font: 800 36px/1 var(--font-display);
  color: var(--ink);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.game-over__subtitle {
  font: italic 400 15px/1.4 var(--font-body);
  color: var(--txt-dim);
  margin: 0 0 28px;
}
.game-over__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  max-width: 380px;
  margin: 0 auto 28px;
  padding: 18px 0;
  border-top: 1px solid var(--bdr-soft);
  border-bottom: 1px solid var(--bdr-soft);
}
.game-over__stats > div {
  display: flex; flex-direction: column;
  align-items: flex-start;
}
.game-over__stats dt {
  font: 500 10px/1 var(--font-mono);
  color: var(--txt-dim);
  text-transform: uppercase; letter-spacing: 0.18em;
  margin: 0;
}
.game-over__stats dd {
  font: 700 24px/1 var(--font-display);
  color: var(--rust);
  margin: 4px 0 0;
}
.game-over__note {
  font: 400 13px/1.5 var(--font-body);
  color: var(--txt);
  max-width: 46ch;
  margin: 0 auto 24px;
}
.game-over__note strong { color: var(--rust); }
.game-over__cta {
  display: flex; justify-content: center; gap: 12px;
  flex-wrap: wrap;
}
.btn-replay, .btn-go-lb {
  font: 700 14px/1 var(--font-display);
  padding: 14px 22px;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background .12s ease, transform .12s ease;
}
.btn-replay {
  background: var(--rust); color: #fff;
  box-shadow: 0 6px 14px -6px rgba(166,54,27,0.45);
}
.btn-replay:hover { background: #921e0a; transform: translateY(-1px); }
.btn-go-lb {
  background: transparent; color: var(--ink);
  border: 1px solid var(--bdr-strong);
}
.btn-go-lb:hover { border-color: var(--rust); color: var(--rust); }

.feedback {
  margin-top: 20px;
  padding: 20px 24px;
  border-radius: 4px;
  background: var(--bg-card-alt);
  border: 1px solid var(--bdr);
}
.feedback__verdict {
  font: 800 22px/1 var(--font-display);
  margin-bottom: 8px;
}
.feedback__verdict.correct { color: #2e7d32; }
.feedback__verdict.wrong { color: var(--rust); }
.feedback__verdict.crowd { color: var(--gold-dark); }
.feedback__truth {
  font: 400 14px/1.5 var(--font-body);
  color: var(--txt);
  margin-bottom: 12px;
}
.feedback__truth em { color: var(--rust); font-style: italic; font-weight: 700; }
.feedback__pts {
  font: 700 16px/1 var(--font-display);
  color: var(--ink);
  margin-bottom: 16px;
}
.feedback__pts .pts-positive { color: #2e7d32; }
.feedback__pts .pts-negative { color: var(--rust); }
.btn-next {
  background: var(--ink);
  color: var(--cream);
  font: 700 14px/1 var(--font-display);
  padding: 14px 24px;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background .12s ease;
}
.btn-next:hover { background: var(--rust); }

/* ============================================
 * LEADERBOARD overlay (con backdrop)
 * ============================================ */
.leaderboard-backdrop {
  position: fixed; inset: 0;
  background: rgba(18, 16, 12, 0.45);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 199;
  animation: fade-in .2s ease-out;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.leaderboard {
  position: fixed;
  right: 0; top: 0; bottom: 0;
  width: 420px; max-width: 92vw;
  background: var(--bg-card);
  border-left: 2px solid var(--rust);
  box-shadow: -12px 0 32px -8px rgba(18,16,12,0.5);
  padding: 28px 24px;
  z-index: 200;
  overflow-y: auto;
  animation: slide-in .25s ease-out;
}
@keyframes slide-in { from { transform: translateX(100%); } to { transform: translateX(0); } }
.leaderboard__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.leaderboard__head h3 {
  font: 700 18px/1 var(--font-display);
  color: var(--rust);
  margin: 0;
}
.leaderboard__close {
  background: transparent; border: 0;
  font-size: 28px; line-height: 1;
  color: var(--txt-dim);
  cursor: pointer;
  min-width: 44px; min-height: 44px;  /* touch target a11y */
  display: flex; align-items: center; justify-content: center;
}
.leaderboard__close:hover { color: var(--rust); }
.leaderboard__me-rank {
  font: italic 500 13px/1.4 var(--font-meta);
  color: var(--gold-dark);
  margin: 0 0 16px;
}
.leaderboard__list {
  list-style: none; padding: 0; margin: 0;
}
.leaderboard__list li {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--bdr-soft);
}
.leaderboard__list li:last-child { border-bottom: 0; }
.lb-rank {
  font: 700 14px/1 var(--font-mono);
  color: var(--gold-dark);
  text-align: right;
}
.lb-rank.gold { color: gold; font-size: 16px; }
.lb-rank.silver { color: silver; font-size: 16px; }
.lb-rank.bronze { color: #cd7f32; font-size: 16px; }
.lb-user { display: flex; flex-direction: column; }
.lb-username { font: 600 14px/1.2 var(--font-body); }
.lb-meta { font: 500 11px/1 var(--font-mono); color: var(--txt-dim); margin-top: 3px; }
.lb-points {
  font: 700 16px/1 var(--font-display);
  color: var(--rust);
  text-align: right;
}

/* ============================================
 * Mobile
 * ============================================ */
@media (max-width: 640px) {
  .gioco-main { margin: 12px auto; padding: 0 10px; }
  .gioco-fullscreen .gioco-main { padding: 8px 10px 24px; }
  .intro-card { padding: 32px 20px; }
  .intro-title { font-size: 44px; }
  /* HUD mobile: 2 righe — riga 1 (livello | punti | indicators), riga 2 (Classifica | Esci) */
  .hud {
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
      "lev  pts  ind"
      "lb   lb   exit";
    padding: 10px 12px;
    gap: 10px;
    top: 6px;
  }
  .hud__level { grid-area: lev; }
  .hud__points { grid-area: pts; }
  .hud__indicators { grid-area: ind; }
  .hud__leaderboard-btn { grid-area: lb; margin-top: 4px; }
  .hud__exit-btn { grid-area: exit; margin-top: 4px; }
  /* Game-over mobile */
  .game-over { padding: 28px 18px; }
  .game-over__title { font-size: 28px; }
  .game-over__stats { grid-template-columns: 1fr 1fr; gap: 12px 18px; }
  .game-over__stats dd { font-size: 20px; }
  .hud__points-value { font-size: 24px; }
  .hud__level-icon { font-size: 22px; }
  .card { padding: 14px; }
  .card__image-wrap { min-height: 200px; margin-bottom: 16px; }
  .card__image { max-height: 55svh; }
  .card__title { font-size: 20px; }
  .options { grid-template-columns: 1fr; gap: 10px; }
  .option-btn { padding: 14px 16px; font-size: 14px; }
  .feedback { padding: 16px; }
}