/* ═══════════════════════════════════════════════════════════════
   Memory-Spiel — Spielspezifische Styles
   Erweitert assets/styles.css (nicht verändern)
═══════════════════════════════════════════════════════════════ */

/* ── ARIA Live Region (unsichtbar) ──────────────────── */
#mem-live {
  position: absolute;
  width: 1px; height: 1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap;
  border: 0;
}

/* ── Statistik-Leiste ───────────────────────────────── */
.mem-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px 4px;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}
.mem-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 16px;
  background: var(--c-surf-mid);
  border-radius: var(--r-full);
  border: 1.5px solid var(--c-outline-var);
  font-size: 15px;
  font-weight: 600;
  color: var(--c-on-surf-var);
  white-space: nowrap;
}
.mem-stat__icon { font-size: 17px; line-height: 1; }
.mem-stat__val {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-primary);
  min-width: 24px;
  text-align: center;
}
@keyframes tick-blink { 50% { opacity: .55; } }
.mem-stat.timer-run .mem-stat__val { animation: tick-blink 1s linear infinite; }

/* ── Steuer-Leiste ──────────────────────────────────── */
.mem-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  padding: 8px 16px 4px;
  flex-wrap: wrap;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

/* ── Spielfeld-Wrapper ──────────────────────────────── */
.mem-board-wrap {
  width: 100%;
  max-width: min(98vw, 600px);
  margin: 12px auto 0;
  padding: 0 10px;
}

/* ── Spielfeld-Grid ─────────────────────────────────── */
.mem-board {
  display: grid;
  gap: 8px;
  width: 100%;
  /* grid-template-columns set via JS */
}

/* ── Karte ──────────────────────────────────────────── */
.mem-card {
  aspect-ratio: 3 / 4;
  perspective: 900px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.mem-card:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--r-md);
}
.mem-card[aria-disabled="true"] { cursor: default; }

/* Flip-Container */
.mem-card__inner {
  width: 100%; height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform var(--dur-slow) var(--ease);
  border-radius: var(--r-md);
  will-change: transform;
}
.mem-card.is-flipped .mem-card__inner,
.mem-card.is-matched .mem-card__inner { transform: rotateY(180deg); }

@media (prefers-reduced-motion: reduce) {
  .mem-card__inner { transition: none !important; }
}

/* Vorder- & Rückseite */
.mem-card__back,
.mem-card__face {
  position: absolute; inset: 0;
  border-radius: var(--r-md);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

/* Rückseite – Marken-Orange */
.mem-card__back {
  background: var(--c-primary);
  border: 2px solid rgba(255,255,255,.22);
  box-shadow: var(--elev-1);
  transition: background var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
}
.mem-card__back::before {
  content: '';
  position: absolute; inset: 6px;
  border-radius: calc(var(--r-md) - 3px);
  border: 2px dashed rgba(255,255,255,.35);
  pointer-events: none;
}
.mem-card__back-icon {
  font-size: clamp(1.4rem, 4.5vw, 2.2rem);
  color: rgba(255,255,255,.75);
  line-height: 1;
  user-select: none;
}

/* Vorderseite */
.mem-card__face {
  transform: rotateY(180deg);
  background: var(--c-surf-low);
  border: 2px solid var(--c-outline-var);
  box-shadow: var(--elev-1);
  font-size: clamp(1.6rem, 5.5vw, 3rem);
  line-height: 1;
  user-select: none;
}

/* Hover / Active (nur nicht-aufgedeckte Karten) */
.mem-card:not(.is-flipped):not(.is-matched):hover .mem-card__back {
  background: #E56C00; box-shadow: var(--elev-2);
}
.mem-card:not(.is-flipped):not(.is-matched):active .mem-card__back {
  background: #C85F00;
}

/* Gefundenes Paar */
.mem-card.is-matched .mem-card__face {
  background: var(--c-primary-container);
  border-color: var(--c-primary);
}
@keyframes match-pop {
  0%   { transform: rotateY(180deg) scale(1); }
  45%  { transform: rotateY(180deg) scale(1.14); }
  100% { transform: rotateY(180deg) scale(1); }
}
.mem-card.is-matched .mem-card__inner {
  animation: match-pop .35s var(--ease) forwards;
}
@media (prefers-reduced-motion: reduce) {
  .mem-card.is-matched .mem-card__inner { animation: none; }
}

/* Falsches Paar – Fehler-Flash */
@keyframes err-shake {
  0%,100% { transform: rotateY(180deg) translateX(0); }
  25%     { transform: rotateY(180deg) translateX(-5px); }
  75%     { transform: rotateY(180deg) translateX(5px); }
}
.mem-card.is-error .mem-card__face {
  background: var(--c-error-container);
  border-color: var(--c-error);
  animation: err-shake .3s var(--ease);
}

/* ── Große-Karten-Modus ─────────────────────────────── */
body.large-cards .mem-card__face { font-size: clamp(2rem, 7vw, 3.6rem); }

/* ── Hoher-Kontrast-Modus ───────────────────────────── */
body.high-contrast .mem-card__back { border: 3px solid #fff; }
body.high-contrast .mem-card__face { border: 3px solid #000; }
body.dark-mode.high-contrast .mem-card__face { border-color: #fff; }

/* ── Keine-JS-Meldung ───────────────────────────────── */
.nojs-msg {
  background: var(--c-primary-container);
  color: var(--c-on-primary-container);
  border: 2px solid var(--c-primary);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  max-width: 560px;
  margin: 24px auto;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
}

/* ── Einstellungs-Dialog ────────────────────────────── */
.settings-section { margin-bottom: 20px; }
.settings-section:last-child { margin-bottom: 0; }
.settings-label {
  display: block;
  font-size: 12px; font-weight: 700;
  letter-spacing: .6px; text-transform: uppercase;
  color: var(--c-on-surf-var);
  margin-bottom: 8px;
}
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}
.settings-opt {
  display: flex; flex-direction: column;
  align-items: center; gap: 4px;
  padding: 10px 6px;
  border-radius: var(--r-md);
  background: var(--c-secondary-container);
  border: 2px solid var(--c-outline-var);
  cursor: pointer;
  font-size: 13px; font-weight: 600;
  color: var(--c-on-secondary-container);
  transition: all var(--dur-fast) var(--ease);
  position: relative; overflow: hidden;
}
.settings-opt::before {
  content: ''; position: absolute; inset: 0;
  background: currentColor; opacity: 0;
  transition: opacity var(--dur-fast);
}
.settings-opt:hover { box-shadow: var(--elev-1); }
.settings-opt:hover::before { opacity: .06; }
.settings-opt:active::before { opacity: .12; }
.settings-opt.active {
  background: var(--c-primary-container);
  border-color: var(--c-primary);
  color: var(--c-on-primary-container);
}
.settings-opt__icon { font-size: 22px; line-height: 1; }

/* Toggle-Zeile */
.toggle-row {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-outline-var);
}
.toggle-row:last-child { border-bottom: none; }
.toggle-row__lbl {
  font-size: 16px; font-weight: 500;
  color: var(--c-on-surface);
}

/* Toggle-Switch */
.toggle-sw {
  position: relative; display: inline-block;
  width: 50px; height: 28px; flex-shrink: 0;
}
.toggle-sw input {
  opacity: 0; width: 0; height: 0; position: absolute;
}
.toggle-track {
  position: absolute; inset: 0;
  border-radius: var(--r-full);
  background: var(--c-outline-var);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease);
}
.toggle-track::after {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--elev-1);
  transition: transform var(--dur-fast) var(--ease);
}
.toggle-sw input:checked + .toggle-track { background: var(--c-primary); }
.toggle-sw input:checked + .toggle-track::after { transform: translateX(22px); }
.toggle-sw input:focus-visible + .toggle-track {
  outline: var(--focus-ring); outline-offset: 2px;
}

/* Highscore Badge */
.hs-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--c-primary-container);
  color: var(--c-on-primary-container);
  border: 1.5px solid var(--c-primary);
  border-radius: var(--r-full);
  padding: 5px 14px;
  font-size: 14px; font-weight: 600;
  margin-top: 8px;
}

/* ── Confetti-Canvas ────────────────────────────────── */
#confetti-cv {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9999;
  display: none;
}

/* ── Pause-Overlay ──────────────────────────────────── */
.pause-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.55);
  border-radius: var(--r-md);
  display: none;
  align-items: center; justify-content: center;
  font-size: 3rem; color: #fff;
  z-index: 10;
}
.mem-board-wrap { position: relative; }
.mem-board-wrap.is-paused .pause-overlay { display: flex; }

/* ── SEO-Inhalt ─────────────────────────────────────── */
.seo-wrap { max-width: var(--content-max); margin: 40px auto 0; padding: 0 16px 60px; }
.seo-wrap h2 {
  font-size: 21px; font-weight: 600; line-height: 1.3;
  color: var(--c-on-surface); margin: 30px 0 10px;
}
.seo-wrap h2:first-child { margin-top: 0; }
.seo-wrap h3 {
  font-size: 18px; font-weight: 600;
  color: var(--c-on-surface); margin: 20px 0 6px;
}
.seo-wrap p {
  color: var(--c-on-surf-var); margin-bottom: 10px; line-height: 28px;
}
.seo-wrap ul, .seo-wrap ol {
  padding-left: 22px; color: var(--c-on-surf-var); margin-bottom: 12px;
}
.seo-wrap li { margin-bottom: 5px; line-height: 26px; }
.seo-lead {
  font-size: 19px; line-height: 30px;
  color: var(--c-on-surface); margin-bottom: 24px;
}
.seo-divider {
  border: none; border-top: 1.5px solid var(--c-outline-var);
  margin: 32px 0;
}

/* ── FAQ-Bereich ────────────────────────────────────── */
.faq-wrap {
  max-width: var(--content-max); margin: 0 auto;
  padding: 0 16px 56px;
}
.faq-wrap h2 {
  font-size: 21px; font-weight: 600;
  color: var(--c-on-surface); margin-bottom: 20px;
}

/* ── Desktop ≥ 900px ────────────────────────────────── */
@media (min-width: 900px) {
  .mem-board-wrap { max-width: 580px; }
  .mem-board { gap: 10px; }
  .mem-card__face { font-size: clamp(2rem, 3vw, 3.2rem); }
}