:root {
  --bg-color: #1a0b2e;
  --panel-bg: #fff;
  --panel-border: #000;
  --primary: #ffd900;
  --secondary: #00e1ff;
  --destructive: #ff3366;
  --text-main: #2b2b2b;

  /* Card rarity colours */
  --rarity-common:   linear-gradient(160deg, #e0e0e0 0%, #ffffff 50%, #c8c8c8 100%);
  --rarity-uncommon: linear-gradient(160deg, #1a6b3c 0%, #2ddd7a 50%, #177a46 100%);
  --rarity-rare:     linear-gradient(160deg, #1a2a6c 0%, #b21f1f 50%, #fdbb2d 100%);
  --rarity-common-glow:   #aaaaaa;
  --rarity-uncommon-glow: #2ddd7a;
  --rarity-rare-glow:     #fdbb2d;
}

* {
  box-sizing: border-box;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  /* dvh handles mobile browsers with address bars */
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-color);
  font-family: 'Fredoka', sans-serif;
  color: var(--text-main);
  user-select: none;
  /* Safe area for notched phones */
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

canvas {
  display: block;
  z-index: 1;
}

.hidden {
  display: none !important;
}

/* ── OVERLAYS ────────────────────────────────────────────── */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
  background: rgba(26, 11, 46, 0.72);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 10px;
  /* Ensure content stays within safe area */
  padding-top: max(10px, env(safe-area-inset-top));
  padding-bottom: max(10px, env(safe-area-inset-bottom));
}

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

.panel {
  background: var(--panel-bg);
  border: 4px solid var(--panel-border);
  padding: 40px 60px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 12px 12px 0px rgba(0, 0, 0, 1);
  animation: bounceIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  max-height: 90dvh;
  overflow-y: auto;
  width: auto;
  max-width: 95vw;
}

.panel.destructive {
  background: linear-gradient(135deg, #2b0811 0%, #1a050a 100%);
  border-color: #000;
}
.panel.destructive h1 {
  color: var(--destructive);
  text-shadow: 4px 4px 0px #000;
}
.panel.destructive p {
  color: #fff;
}

/* Death Stats */
.death-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 20px 0;
  background: rgba(0,0,0,0.3);
  padding: 20px;
  border-radius: 20px;
  border: 3px solid #000;
  box-shadow: inset 4px 4px 0 rgba(0,0,0,0.5);
}

.stat-group {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-group span:first-child {
  font-size: 0.9rem;
  font-weight: 700;
  opacity: 0.8;
  color: #ff9fb4;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.stat-group span:nth-child(2) {
  font-size: 2.2rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 3px 3px 0 #000;
}

.pb-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #000;
  background: var(--primary);
  padding: 2px 10px;
  border-radius: 12px;
  border: 2px solid #000;
  margin-top: 8px;
  box-shadow: 3px 3px 0 #000;
}

.pb-label span {
  color: #000 !important;
  text-shadow: none !important;
}

/* Revive Section */
.revive-container {
  margin: 10px 0 25px 0;
}

.revive-btn {
  background: #ff007a;
  color: #fff !important;
  padding: 18px 32px;
  font-size: 1.4rem !important;
  border: 4px solid #000;
  box-shadow: 6px 6px 0px #000;
  width: 100%;
  max-width: 350px;
  animation: pulseCard 1.5s infinite;
}

.revive-btn .btn-icon {
  margin-right: 10px;
  font-size: 1.6rem;
}

#restart-timer {
  font-weight: 700;
  opacity: 0.8;
  background: rgba(0,0,0,0.2);
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 5px;
}

.difficulty-buttons button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: 4px 4px 0px #000 !important;
  background: #555 !important;
}

@keyframes bounceIn {
  0%   { transform: scale(0.5); opacity: 0; }
  60%  { transform: scale(1.1); opacity: 1; }
  80%  { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}

h1 {
  margin: 0 0 10px 0;
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  text-shadow: 4px 4px 0px #000;
  -webkit-text-stroke: 2px #000;
}

p {
  font-size: 1.4rem;
  line-height: 1.5;
  margin-bottom: 30px;
  color: var(--text-main);
  font-weight: 700;
}



/* ── BUTTONS ─────────────────────────────────────────────── */
button.bouncy-btn {
  background: #33ff55;
  border: 4px solid #000;
  color: #000;
  font-family: 'Fredoka', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  padding: 15px 40px;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 6px 6px 0px #000;
  transition: all 0.1s ease;
  position: relative;
  text-transform: uppercase;
}

button.bouncy-btn:hover {
  background: #66ff88;
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0px #000;
}

button.bouncy-btn:active {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0px #000;
}

button.destructive-btn {
  background: var(--destructive);
  color: #fff;
}
button.destructive-btn:hover {
  background: #ff6688;
}

.difficulty-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
  justify-content: center;
  align-items: center;
  margin-top: 30px;
}

.difficulty-buttons button {
  width: 100%;
  max-width: 350px;
}

.diff-easy   { background: #33ff55 !important; }
.diff-normal { background: #ffd900 !important; }
.diff-allen  { background: #ff3366 !important; color: white !important; }

/* ── HUB SCREEN ──────────────────────────────────────────── */
.game-selection-grid {
  display: flex;
  gap: 30px;
  justify-content: center;
  align-items: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

.game-card {
  background: var(--primary);
  border: 4px solid #000;
  border-radius: 20px;
  padding: 40px 30px;
  width: 300px;
  height: 250px;
  cursor: pointer;
  box-shadow: 8px 8px 0px #000;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.game-card h2 {
  font-size: 2rem;
  color: #000;
  margin: 0 0 15px 0;
}

.game-card p {
  font-size: 1.2rem;
  color: #222;
  margin: 0;
}

.revive-btn:hover {
    transform: translateY(-5px) scale(1.05);
    background: #ff5588;
}

/* Death Aesthetic */
.death-aesthetic {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    pointer-events: none;
}

#big-sad-player {
    width: 250px;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(255, 0, 0, 0.4));
    animation: float-sad 3s ease-in-out infinite;
}

@keyframes float-sad {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

/* Transitions */
.game-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 12px 14px 0px #000;
  background: #fffdf0;
}

.game-card:active {
  transform: translateY(0) scale(0.95);
  box-shadow: 4px 4px 0px #000;
}

.game-card.locked {
  background: #555;
  color: #aaa;
  cursor: not-allowed;
  filter: grayscale(100%);
}

.game-card.locked h2 { color: #222; }

.game-card.locked:hover {
  transform: none;
  box-shadow: 8px 8px 0px #000;
  background: #555;
}

/* ── HUD ─────────────────────────────────────────────────── */
#hud {
  position: fixed;
  top: calc(30px + env(safe-area-inset-top));
  left: 20px;
  z-index: 5;
  background: var(--panel-bg);
  border: 4px solid var(--panel-border);
  padding: 10px 20px;
  border-radius: 15px;
  box-shadow: 8px 8px 0px rgba(0,0,0,1);
}

.top-hud {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

#timer {
  font-size: 2rem;
  font-weight: 700;
  color: #000;
}

.score-container, .gems-container {
  display: flex;
  align-items: center;
  gap: 6px;
}

.score-container span:first-child {
  font-size: 1.2rem;
  font-weight: 700;
  color: #000;
}

#score {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  -webkit-text-stroke: 1px #000;
  text-shadow: 3px 3px 0px #000;
}

.gems-container span:first-child {
  font-size: 1.5rem;
}

#gems-display {
  font-size: 2rem;
  font-weight: 700;
  color: #00e87a;
  -webkit-text-stroke: 1px #000;
  text-shadow: 3px 3px 0px #000;
}

/* ── XP BAR ──────────────────────────────────────────────── */
#xp-bar-container {
  position: fixed;
  top: env(safe-area-inset-top, 0px);
  left: 0;
  width: 100%;
  height: 28px;
  background: #000;
  z-index: 6;
  border-bottom: 3px solid #333;
}

#xp-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--secondary), #0080ff);
  border-right: 3px solid #00f3ff;
  transition: width 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 0 12px rgba(0, 225, 255, 0.8);
}

#level-display {
  position: fixed;
  top: calc(36px + env(safe-area-inset-top, 0px));
  right: 20px;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  z-index: 6;
  background: var(--primary);
  padding: 5px 15px;
  border-radius: 10px;
  border: 4px solid #000;
  box-shadow: 6px 6px 0px #000;
  -webkit-text-stroke: 1px #000;
}

/* ── LEVEL UP PANEL ──────────────────────────────────────── */
.level-up-panel {
  max-width: 1100px;
  width: 96vw;
  background: linear-gradient(135deg, #0d0d2b 0%, #1a0b2e 60%, #2d0845 100%);
  border: 3px solid #7700ff;
  border-radius: 24px;
  box-shadow: 0 0 60px rgba(119, 0, 255, 0.6), 0 0 120px rgba(119, 0, 255, 0.2), inset 0 0 30px rgba(119, 0, 255, 0.1);
  padding: 28px 24px 32px;
  text-align: center;
  max-height: 90dvh;
  overflow-y: auto;
  animation: bounceIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes levelUpPanelIn {
  0%   { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
  60%  { transform: translate(-50%, -50%) scale(1.06); opacity: 1; }
  80%  { transform: translate(-50%, -50%) scale(0.98); }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* The overlay behind the level-up panel */
#level-up-screen {
  background: rgba(10, 4, 20, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.level-up-heading {
  font-size: 3.5rem;
  color: #fff;
  -webkit-text-stroke: 2px #000;
  text-shadow: 0 0 20px #ffd900, 0 0 40px #ff9500, 4px 4px 0 #000;
  animation: levelUpPulse 1.5s ease-in-out infinite;
  margin-bottom: 4px;
}

@keyframes levelUpPulse {
  0%, 100% { text-shadow: 0 0 20px #ffd900, 0 0 40px #ff9500, 4px 4px 0 #000; }
  50%       { text-shadow: 0 0 40px #ffd900, 0 0 80px #ff9500, 4px 4px 0 #000; }
}

.level-up-subtitle {
  color: #c8a0ff;
  font-size: 1.3rem;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.cards-container {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── UPGRADE CARDS (MTG / Pokemon Style) ─────────────────── */
.upgrade-card {
  position: relative;
  width: 230px;
  min-height: 340px;
  border-radius: 16px;
  border: 3px solid rgba(255,255,255,0.3);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.25s ease,
              filter 0.25s ease;
  animation: cardDeal 0.4s ease backwards;
}

/* Stagger card deal animation */
.upgrade-card:nth-child(1) { animation-delay: 0.05s; }
.upgrade-card:nth-child(2) { animation-delay: 0.15s; }
.upgrade-card:nth-child(3) { animation-delay: 0.25s; }

@keyframes cardDeal {
  0%   { transform: translateY(80px) scale(0.8) rotate(5deg); opacity: 0; }
  100% { transform: translateY(0) scale(1) rotate(0deg); opacity: 1; }
}

/* Rarity backgrounds */
.upgrade-card.rarity-common   { background: var(--rarity-common); }
.upgrade-card.rarity-uncommon { background: var(--rarity-uncommon); }
.upgrade-card.rarity-rare     { background: var(--rarity-rare); }

/* Foil shimmer overlay */
.upgrade-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 20%,
    rgba(255,255,255,0.25) 40%,
    rgba(255,255,255,0.05) 50%,
    transparent 60%
  );
  background-size: 200% 100%;
  animation: foilShimmer 3s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
  border-radius: 16px;
}

.upgrade-card.rarity-rare::before {
  background: linear-gradient(
    115deg,
    transparent 10%,
    rgba(255, 200, 50, 0.35) 30%,
    rgba(255, 50, 200, 0.2) 50%,
    rgba(50, 150, 255, 0.3) 70%,
    transparent 90%
  );
  background-size: 300% 100%;
  animation: foilShimmerRare 2s ease-in-out infinite;
}

@keyframes foilShimmer {
  0%, 100% { background-position: 200% 0; }
  50%       { background-position: -200% 0; }
}

@keyframes foilShimmerRare {
  0%, 100% { background-position: 300% 0; }
  50%       { background-position: -300% 0; }
}

.upgrade-card:hover {
  transform: translateY(-18px) scale(1.05) rotate(-1.5deg);
  box-shadow: 0 24px 60px rgba(0,0,0,0.8), 0 0 30px var(--rarity-common-glow);
  filter: brightness(1.08);
  z-index: 5;
}

.upgrade-card.rarity-uncommon:hover {
  box-shadow: 0 24px 60px rgba(0,0,0,0.8), 0 0 40px var(--rarity-uncommon-glow);
}

.upgrade-card.rarity-rare:hover {
  box-shadow: 0 24px 60px rgba(0,0,0,0.8), 0 0 60px var(--rarity-rare-glow);
}

.upgrade-card:active {
  transform: translateY(0) scale(0.96);
  box-shadow: 0 4px 12px rgba(0,0,0,0.6);
}

/* Card header bar */
.card-header {
  position: relative;
  z-index: 2;
  background: rgba(0,0,0,0.55);
  padding: 8px 12px 6px;
  border-bottom: 2px solid rgba(255,255,255,0.2);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 1px 1px 3px #000, 0 0 8px rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Card art box */
.card-art {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  padding: 16px 0;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
  background: rgba(0,0,0,0.15);
  min-height: 100px;
}

/* Card text box */
.card-text-box {
  position: relative;
  z-index: 2;
  background: rgba(0,0,0,0.65);
  border-top: 2px solid rgba(255,255,255,0.15);
  padding: 10px 12px 8px;
}

.card-desc {
  font-size: 0.95rem;
  font-weight: 700;
  color: #e8e8e8;
  line-height: 1.4;
  margin-bottom: 8px;
  text-shadow: 1px 1px 2px #000;
  font-style: italic;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-rank {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffd900;
  text-shadow: 1px 1px 0 #000;
}

.card-rarity-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 1px;
}

.rarity-badge-common   { background: #888; color: #fff; }
.rarity-badge-uncommon { background: #1dbd5c; color: #fff; }
.rarity-badge-rare     { background: linear-gradient(90deg, #b21f1f, #fdbb2d); color: #fff; }

/* ── MOBILE & SMALL SCREEN ───────────────────────────────── */
@media (max-width: 600px) {
  h1 {
    font-size: 2.2rem;
    -webkit-text-stroke: 2px #000;
  }

  .panel {
    padding: 24px 14px;
    border-width: 3px;
    box-shadow: 6px 6px 0px rgba(0,0,0,0.8);
  }

  .game-selection-grid {
    flex-direction: column;
    gap: 15px;
  }

  .game-card {
    width: 100%;
    max-width: 340px;
    height: auto;
    padding: 20px;
  }

  /* HUD compact for portrait phone */
  #hud {
    top: calc(32px + env(safe-area-inset-top, 0px));
    left: 8px;
    right: 8px;
    padding: 6px 12px;
    border-width: 3px;
    box-shadow: 4px 4px 0px rgba(0,0,0,0.8);
  }

  .top-hud {
    gap: 10px;
    flex-wrap: nowrap;
    justify-content: space-between;
  }

  #timer {
    font-size: 1.4rem;
  }

  .score-container span:first-child { font-size: 0.9rem; }
  #score { font-size: 1.4rem; }
  #gems-display { font-size: 1.4rem; }
  .gems-container span:first-child { font-size: 1.1rem; }

  #level-display {
    font-size: 1.2rem;
    padding: 3px 10px;
    top: calc(36px + env(safe-area-inset-top, 0px));
    right: 10px;
    border-width: 3px;
    box-shadow: 4px 4px 0px #000;
  }

  /* Level up panel full-width on mobile */
  .level-up-panel {
    width: 99vw;
    padding: 16px 8px 20px;
    border-radius: 16px;
  }

  .level-up-heading { font-size: 2.4rem; }
  .level-up-subtitle { font-size: 1.1rem; margin-bottom: 12px; }

  .cards-container {
    flex-direction: column;
    align-items: center;
    gap: 14px;
  }

  .upgrade-card {
    width: 90vw;
    max-width: 320px;
    min-height: auto;
    flex-direction: row;
    border-radius: 14px;
  }

  .upgrade-card::before { border-radius: 14px; }

  .card-art {
    font-size: 3.5rem;
    min-width: 80px;
    min-height: 80px;
    padding: 12px;
    border-right: 2px solid rgba(255,255,255,0.15);
    border-bottom: none;
    flex: 0 0 80px;
  }

  .card-header {
    border-bottom: none;
    border-right: 2px solid rgba(255,255,255,0.2);
  }

  .card-text-box {
    flex: 1;
    border-top: none;
    border-left: 2px solid rgba(255,255,255,0.15);
  }

  .difficulty-buttons button {
    max-width: 280px;
    font-size: 1.2rem;
    padding: 12px 24px;
  }

  /* Compact Death Screen for Mobile Overhaul */
  .panel.destructive {
    padding: 15px 10px;
  }
  
  .panel.destructive h1 {
    font-size: 1.6rem;
    margin-bottom: 2px;
  }
  
  .panel.destructive p {
    font-size: 1rem;
    margin-bottom: 10px;
  }
  
  #big-sad-player {
    width: 90px; 
    margin-top: 5px;
  }

  .death-aesthetic {
    margin-top: 5px;
  }

  .death-stats {
    gap: 10px;
    margin: 8px 0;
    padding: 10px;
  }

  .stat-group span:first-child {
    font-size: 0.7rem;
  }

  .stat-group span:nth-child(2) {
    font-size: 1.4rem;
  }

  .pb-label {
    font-size: 0.7rem;
    margin-top: 4px;
    padding: 1px 6px;
  }

  .revive-btn {
    padding: 12px 15px;
    font-size: 1rem !important;
    margin-bottom: 8px;
    max-width: 100%;
  }

  .difficulty-buttons {
    margin-top: 8px;
    gap: 8px;
    flex-direction: row; /* Buttons side-by-side */
    width: 100%;
    justify-content: center;
  }

  .difficulty-buttons button {
    font-size: 0.9rem;
    padding: 10px 15px;
    flex: 1; /* Equal width */
    max-width: 160px;
    line-height: 1.1;
  }
}

/* ── VERY SMALL SCREENS (<380px) ────────────────────────── */
@media (max-width: 380px) {
  .level-up-heading { font-size: 2rem; }
  .upgrade-card { max-width: 98vw; }
  .card-art { min-width: 65px; flex: 0 0 65px; font-size: 2.8rem; }
}