/* ==========================================================================
   Tabliczka Memory - Arkusz stylów
   ========================================================================== */

:root {
  --bg-main: #0b0f19;
  --bg-gradient: radial-gradient(circle at 50% 10%, #1e1b4b 0%, #0b0f19 90%);
  --panel-bg: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.1);
  --card-back-bg: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  --card-back-border: rgba(99, 102, 241, 0.4);
  
  --op-accent: #38bdf8;
  --op-bg: linear-gradient(145deg, #0f172a, #1e293b);
  
  --res-accent: #fbbf24;
  --res-bg: linear-gradient(145deg, #0f172a, #1e293b);
  
  --match-accent: #10b981;
  --match-glow: rgba(16, 185, 129, 0.45);
  
  --mismatch-accent: #f43f5e;
  --mismatch-glow: rgba(244, 63, 94, 0.45);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --gold: #f59e0b;
  
  --font-display: 'Fredoka', 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background: var(--bg-main);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  overflow-x: hidden;
  padding: 12px;
}

/* Główne opakowanie aplikacji */
.app-container {
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
}

/* Nagłówek */
.app-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 8px 16px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
  border-radius: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.6));
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Przyciski ikonowe w nagłówku */
.btn-icon {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  font-size: 1.15rem;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-icon:active {
  transform: translateY(0);
}

.btn-restart-action {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0 14px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  transition: all 0.2s ease;
}

.btn-restart-action:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
}

.btn-restart-action:active {
  transform: translateY(0);
}

/* Pasek opcji (Poziom i Rozmiar) */
.controls-bar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 14px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.control-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-right: 2px;
}

.btn-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.btn-pill:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-pill.active {
  background: #6366f1;
  color: #fff;
  border-color: #818cf8;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

/* Pasek statusu / statystyk */
.stats-bar {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.stat-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  padding: 8px 12px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.stat-icon {
  font-size: 1.4rem;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.stat-stars {
  color: var(--gold);
  font-size: 1.1rem;
  letter-spacing: 1px;
}

.stat-stars .empty {
  color: rgba(255, 255, 255, 0.2);
}

.record-badge {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  padding: 4px 12px;
  border-radius: 10px;
}

/* ==========================================================================
   Plansza kart
   ========================================================================== */
.board-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 8px 0;
}

.cards-grid {
  width: 100%;
  display: grid;
  gap: 12px;
  justify-content: center;
  perspective: 1200px;
}

/* Układ dla 3 par (6 kart: 3 kolumny x 2 wiersze) */
.cards-grid.pairs-3 {
  grid-template-columns: repeat(3, minmax(0, 160px));
}

/* Układ dla 6 par (12 kart: 4 kolumny x 3 wiersze) */
.cards-grid.pairs-6 {
  grid-template-columns: repeat(4, minmax(0, 140px));
}

/* Układ dla 8 par (16 kart: 4 kolumny x 4 wiersze) */
.cards-grid.pairs-8 {
  grid-template-columns: repeat(4, minmax(0, 125px));
}

/* Karta */
.card {
  aspect-ratio: 1 / 1.12;
  position: relative;
  cursor: pointer;
  user-select: none;
  outline: none;
  border-radius: 16px;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card:focus-visible {
  box-shadow: 0 0 0 3px #818cf8;
}

.card:not(.is-flipped):not(.is-matched):hover {
  transform: translateY(-4px) scale(1.02);
}

.card:not(.is-flipped):not(.is-matched):active {
  transform: translateY(-1px) scale(0.99);
}

.card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  border-radius: 16px;
}

.card.is-flipped .card-inner,
.card.is-matched .card-inner {
  transform: rotateY(180deg);
}

/* Obie strony karty */
.card-face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 16px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px;
  text-align: center;
}

/* Tył karty (rewers) */
.card-back {
  background: var(--card-back-bg);
  border: 2px solid var(--card-back-border);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.card-back-pattern {
  width: 75%;
  height: 75%;
  border: 1.5px dashed rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.15);
}

.card-back-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.4));
  transition: transform 0.3s ease;
}

.card:hover .card-back-icon {
  transform: scale(1.15) rotate(10deg);
}

/* Przód karty (awers) */
.card-front {
  transform: rotateY(180deg);
  background: #131a29;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  position: relative;
}

/* Karta z Działaniem */
.card-front-op {
  background: var(--op-bg);
  border: 2px solid var(--op-accent);
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.2), inset 0 0 12px rgba(56, 189, 248, 0.08);
}

.card-front-op .card-badge {
  background: rgba(56, 189, 248, 0.18);
  color: var(--op-accent);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.card-front-op .card-value {
  color: #f0f9ff;
  text-shadow: 0 2px 10px rgba(56, 189, 248, 0.4);
}

/* Karta z Wynikiem */
.card-front-res {
  background: var(--res-bg);
  border: 2px solid var(--res-accent);
  box-shadow: 0 0 18px rgba(251, 191, 36, 0.2), inset 0 0 12px rgba(251, 191, 36, 0.08);
}

.card-front-res .card-badge {
  background: rgba(251, 191, 36, 0.18);
  color: var(--res-accent);
  border: 1px solid rgba(251, 191, 36, 0.35);
}

.card-front-res .card-value {
  color: #fffbeb;
  text-shadow: 0 2px 10px rgba(251, 191, 36, 0.4);
}

/* Etykieta i zawartość karty */
.card-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 8px;
  margin-bottom: 6px;
}

.card-value {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3.5vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  word-break: keep-all;
  white-space: nowrap;
}

.cards-grid.pairs-8 .card-value {
  font-size: clamp(1.05rem, 3vw, 1.8rem);
}

/* Stan: DOPASOWANA (MATCHED) */
.card.is-matched {
  cursor: default;
}

.card.is-matched .card-front {
  border-color: var(--match-accent);
  box-shadow: 0 0 24px var(--match-glow), inset 0 0 14px rgba(16, 185, 129, 0.15);
  animation: matchBounce 0.45s ease;
}

.card.is-matched .card-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border-color: #34d399;
}

@keyframes matchBounce {
  0% { transform: rotateY(180deg) scale(1); }
  45% { transform: rotateY(180deg) scale(1.09); }
  100% { transform: rotateY(180deg) scale(1); }
}

/* Stan: BŁĄD (MISMATCH) */
.card.is-mismatch .card-front {
  border-color: var(--mismatch-accent);
  box-shadow: 0 0 22px var(--mismatch-glow);
  animation: shakeCard 0.45s ease;
}

@keyframes shakeCard {
  0%, 100% { transform: rotateY(180deg) translateX(0); }
  20%, 60% { transform: rotateY(180deg) translateX(-6px); }
  40%, 80% { transform: rotateY(180deg) translateX(6px); }
}

/* ==========================================================================
   Modale (Zwycięstwo i Pomoc)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 15, 0.78);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  width: 100%;
  max-width: 440px;
  padding: 28px 24px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  text-align: center;
  transform: scale(0.92);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.win-trophy {
  font-size: 3.5rem;
  margin-bottom: -4px;
  filter: drop-shadow(0 4px 14px rgba(245, 158, 11, 0.5));
  animation: trophyWiggle 1s ease infinite alternate;
}

@keyframes trophyWiggle {
  0% { transform: rotate(-5deg); }
  100% { transform: rotate(5deg); }
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.modal-stars {
  font-size: 2.2rem;
  color: var(--gold);
  letter-spacing: 4px;
}

.modal-stars .empty {
  color: rgba(255, 255, 255, 0.15);
}

.modal-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 14px;
}

.modal-stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.modal-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.modal-stat-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.record-ribbon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  border: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* Treść w modalu pomocy */
.help-content {
  text-align: left;
}

.help-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 12px 0;
  font-size: 0.92rem;
  line-height: 1.45;
  color: #cbd5e1;
}

.help-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.help-item-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Canvas konfetti */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1500;
}

/* ==========================================================================
   Responsywność (Mobile / Tablet)
   ========================================================================== */
@media (max-width: 680px) {
  body {
    padding: 8px;
  }

  .app-container {
    gap: 8px;
  }

  .app-header {
    padding: 8px 12px;
  }

  .brand-title {
    font-size: 1.2rem;
  }

  .brand-desc {
    display: none;
  }

  .controls-bar {
    padding: 6px 10px;
    gap: 6px;
  }

  .btn-pill {
    font-size: 0.74rem;
    padding: 5px 9px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .stat-card {
    padding: 6px 10px;
  }

  .stat-value {
    font-size: 1.05rem;
  }

  /* Siatka na wąskich ekranach */
  .cards-grid.pairs-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .cards-grid.pairs-6 {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .cards-grid.pairs-8 {
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
  }

  .card-value {
    font-size: clamp(1.05rem, 4.2vw, 1.6rem);
  }

  .cards-grid.pairs-8 .card-value {
    font-size: clamp(0.85rem, 3.4vw, 1.25rem);
  }

  .card-badge {
    font-size: 0.58rem;
    padding: 1px 5px;
    margin-bottom: 3px;
  }

  .card-back-icon {
    font-size: 1.4rem;
  }
}

@media (max-width: 380px) {
  .cards-grid.pairs-6 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .card-value {
    font-size: 1.15rem;
  }
}