:root {
  --bg-dark: #0a0e1a;
  --bg-mid: #0f1220;
  --panel: #1b2038;
  --panel-2: #242b4a;
  --panel-light: #2d3454;
  --text: #e8ecff;
  --text-bright: #ffffff;
  --muted: #a8b0d8;
  --primary: #667eea;
  --primary-dark: #5568d3;
  --hp: #ff4d6d;
  --mp: #4dabf7;
  --atk: #ffd43b;
  --success: #51cf66;
  --warning: #ff9800;
  --danger: #f44336;
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 30px 80px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  margin: 0;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: linear-gradient(135deg, #0a0e1a 0%, #1a1f3a 50%, #0f1220 100%);
  background-attachment: fixed;
  color: var(--text);
  position: relative;
}

/* Animated background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.15), transparent),
    radial-gradient(2px 2px at 60% 70%, rgba(255, 255, 255, 0.1), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.1), transparent);
  background-size: 200% 200%;
  animation: sparkle 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes sparkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

#app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* Screen Management */
.screen {
  display: none;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   LOBBY SCREEN
   ======================================== */

.lobby-container {
  max-width: 600px;
  margin: 60px auto;
  text-align: center;
}

.game-title {
  font-size: 72px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
  letter-spacing: 4px;
  text-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.title-icon {
  font-size: 60px;
  display: inline-block;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.game-subtitle {
  font-size: 20px;
  color: var(--muted);
  margin-bottom: 40px;
  font-weight: 600;
}

.player-info-card {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 20px;
}

.player-avatar {
  font-size: 64px;
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--primary), #764ba2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.player-stats {
  flex: 1;
  text-align: left;
}

.player-name {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-bright);
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-label {
  color: var(--muted);
  font-weight: 600;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.menu-btn {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  color: var(--text-bright);
  border: 2px solid rgba(255, 255, 255, 0.1);
  padding: 20px 30px;
  border-radius: 16px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.menu-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border-color: var(--primary);
}

.menu-btn.primary {
  background: linear-gradient(135deg, var(--primary), #764ba2);
  border-color: transparent;
}

.menu-btn.primary:hover {
  background: linear-gradient(135deg, #764ba2, var(--primary));
}

/* ========================================
   SCREEN HEADER
   ======================================== */

.screen-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.screen-header h2 {
  font-size: 32px;
  font-weight: 800;
  flex: 1;
  background: linear-gradient(135deg, var(--text-bright), var(--muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.back-btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.back-btn:hover {
  background: var(--panel-light);
  transform: translateX(-3px);
}

/* ========================================
   PLANETS SCREEN
   ======================================== */

.planets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.planet-card {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 20px;
  padding: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 3px solid transparent;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.planet-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.planet-card:hover::before {
  opacity: 1;
}

.planet-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.planet-card.locked {
  opacity: 0.6;
  cursor: not-allowed;
}

.planet-card.locked:hover {
  transform: none;
}

.planet-emoji {
  font-size: 80px;
  margin-bottom: 16px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.planet-name {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-bright);
}

.planet-desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.planet-progress {
  margin-top: 16px;
}

.progress-text {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.progress-bar {
  height: 8px;
  background: var(--bg-dark);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.5s ease;
}

.unlock-requirement {
  font-size: 14px;
  color: var(--warning);
  font-weight: 600;
  padding: 8px 16px;
  background: rgba(255, 152, 0, 0.1);
  border-radius: 8px;
}

/* ========================================
   STAGES SCREEN
   ======================================== */

.stages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.stage-card {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  position: relative;
}

.stage-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border-color: var(--primary);
}

.stage-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
}

.stage-card.locked:hover {
  transform: none;
  border-color: rgba(255, 255, 255, 0.05);
}

.stage-card.completed {
  border-color: var(--success);
}

.stage-number {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.stage-emoji {
  font-size: 64px;
  margin: 16px 0;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.stage-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-bright);
}

.stage-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

.stage-stat {
  font-size: 14px;
  font-weight: 600;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

.stage-rewards {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.reward-item {
  font-size: 14px;
  font-weight: 600;
  padding: 6px 12px;
  background: linear-gradient(135deg, var(--primary), #764ba2);
  border-radius: 8px;
  color: white;
}

.stage-stars {
  margin-top: 12px;
  font-size: 20px;
}

.stage-locked {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 48px;
  opacity: 0.3;
}

/* ========================================
   COLLECTION SCREEN
   ======================================== */

.collection-filters {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--panel);
  color: var(--text);
  border: 2px solid rgba(255, 255, 255, 0.1);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover {
  background: var(--panel-light);
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.pets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.pet-card {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 24px;
  border: 3px solid;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}

.pet-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pet-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.pet-emoji-large {
  font-size: 64px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.pet-level {
  background: var(--primary);
  color: white;
  padding: 6px 12px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
}

.pet-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-bright);
}

.pet-type {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  color: white;
}

.pet-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-item {
  text-align: center;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

.stat-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-bright);
}

.pet-skill {
  background: rgba(102, 126, 234, 0.1);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.skill-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--primary);
}

.skill-desc {
  font-size: 12px;
  color: var(--muted);
}

.pet-exp-bar {
  margin-top: 12px;
}

.exp-text {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.exp-bar {
  height: 6px;
  background: var(--bg-dark);
  border-radius: 10px;
  overflow: hidden;
}

.exp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #764ba2);
  border-radius: 10px;
  transition: width 0.5s ease;
}

.empty-message {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-size: 18px;
}

/* ========================================
   STATS SCREEN
   ======================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.stat-card {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.stat-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.achievements-section {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.achievements-section h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--text-bright);
}

.achievements-list {
  display: grid;
  gap: 12px;
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 2px solid rgba(255, 255, 255, 0.05);
}

.achievement-item.completed {
  border-color: var(--success);
  background: rgba(81, 207, 102, 0.1);
}

.achievement-item.locked {
  opacity: 0.5;
}

.achievement-icon {
  font-size: 32px;
}

.achievement-info {
  flex: 1;
}

.achievement-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-bright);
}

.achievement-desc {
  font-size: 13px;
  color: var(--muted);
}

.achievement-check {
  font-size: 24px;
  color: var(--success);
}

.danger-zone {
  text-align: center;
  padding: 24px;
}

.danger-btn {
  background: var(--danger);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.danger-btn:hover {
  background: #d32f2f;
  transform: scale(1.05);
}

/* ========================================
   PREPARE BATTLE SCREEN
   ======================================== */

.prepare-container {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 30px;
}

.enemy-preview {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 20px;
  padding: 30px;
  border: 2px solid rgba(255, 255, 255, 0.05);
}

.enemy-preview h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: var(--text-bright);
}

.enemy-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  text-align: center;
}

.enemy-portrait-large {
  font-size: 100px;
  margin-bottom: 16px;
  filter: drop-shadow(0 6px 20px rgba(0,0,0,0.4));
}

.enemy-name {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-bright);
}

.enemy-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.rewards-info {
  background: rgba(102, 126, 234, 0.1);
  border-radius: 12px;
  padding: 16px;
}

.rewards-info h4 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--primary);
}

.team-selection {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 20px;
  padding: 30px;
  border: 2px solid rgba(255, 255, 255, 0.05);
}

.team-selection h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: var(--text-bright);
}

.selected-pets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.pet-slot {
  background: rgba(255, 255, 255, 0.03);
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.pet-slot:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary);
}

.pet-slot.filled {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
  border: 2px solid var(--primary);
}

.slot-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 8px;
}

.slot-hint {
  font-size: 12px;
  color: var(--muted);
}

.slot-pet-emoji {
  font-size: 48px;
  margin-bottom: 8px;
}

.slot-pet-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.slot-pet-level {
  font-size: 12px;
  color: var(--muted);
}

.slot-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--danger);
  color: white;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.slot-remove:hover {
  background: #d32f2f;
  transform: scale(1.1);
}

.available-pets h4 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--text);
}

.pets-list-small {
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.pet-item-small {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pet-item-small:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
}

.pet-emoji-small {
  font-size: 32px;
}

.pet-info-small {
  flex: 1;
}

.pet-name-small {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-bright);
}

.pet-level-small {
  font-size: 12px;
  color: var(--muted);
}

.start-battle-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--success), #2b8a3e);
  color: white;
  border: none;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(81, 207, 102, 0.3);
}

.start-battle-btn:hover {
  background: linear-gradient(135deg, #69db7c, var(--success));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(81, 207, 102, 0.4);
}

.empty-message-small {
  text-align: center;
  padding: 20px;
  color: var(--muted);
  font-size: 14px;
}

/* ========================================
   BATTLE SCREEN
   ======================================== */

.battle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
}

.battle-info {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-bright);
}

.battle-container {
  display: grid;
  grid-template-columns: 300px 1fr 300px;
  gap: 20px;
  align-items: start;
}

/* Player Side */
.battle-player {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 20px;
  border: 2px solid rgba(81, 207, 102, 0.3);
}

.player-pets {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  justify-content: center;
}

.battle-pet-icon {
  font-size: 32px;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.player-hp-bar, .player-mp-bar {
  margin-bottom: 12px;
}

.hp-label, .mp-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.hp-meter, .mp-meter {
  position: relative;
  background: var(--bg-dark);
  border-radius: 10px;
  height: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hp-meter span, .mp-meter span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: white;
  z-index: 2;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

.hp-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: linear-gradient(90deg, #ff6b6b, var(--hp));
  border-radius: 10px;
  transition: width 0.4s ease;
  box-shadow: 0 0 15px rgba(255, 77, 109, 0.5);
}

.hp-fill.enemy {
  background: linear-gradient(90deg, #f06595, #e64980);
  box-shadow: 0 0 15px rgba(230, 73, 128, 0.5);
}

.mp-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: linear-gradient(90deg, #74c0fc, var(--mp));
  border-radius: 10px;
  transition: width 0.4s ease;
  box-shadow: 0 0 15px rgba(77, 171, 247, 0.5);
}

/* Enemy Side */
.battle-enemy {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  border: 2px solid rgba(230, 73, 128, 0.3);
}

.enemy-portrait-battle {
  font-size: 100px;
  margin-bottom: 16px;
  filter: drop-shadow(0 6px 20px rgba(0,0,0,0.4));
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.enemy-name-battle {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-bright);
}

.enemy-hp-bar {
  margin-top: 16px;
}

/* Board Section */
.board-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.turn-indicator {
  font-size: 18px;
  font-weight: 700;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--primary), #764ba2);
  color: white;
  border-radius: 12px;
  margin-bottom: 16px;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.9; }
  50% { opacity: 1; }
}

.board {
  width: 480px;
  height: 480px;
  background: linear-gradient(135deg, #0a0e1a, #101429);
  border-radius: 16px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 4px;
  padding: 8px;
  box-shadow: 
    0 0 0 2px rgba(255, 255, 255, 0.05),
    0 20px 60px rgba(0, 0, 0, 0.5) inset,
    0 4px 20px rgba(0, 0, 0, 0.6);
  margin-bottom: 16px;
}

.cell {
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.2s ease;
}

.cell:hover {
  background: rgba(255, 255, 255, 0.05);
}

.cell .gem {
  width: 90%;
  height: 90%;
  border-radius: 20%;
  display: grid;
  place-items: center;
  font-size: 24px;
  font-weight: 900;
  text-shadow: 0 1px 0 rgba(255,255,255,0.5);
  box-shadow: 
    0 2px 0 rgba(255,255,255,0.2) inset,
    0 -2px 0 rgba(0,0,0,0.2) inset,
    0 8px 16px rgba(0,0,0,0.4);
  transition: transform 0.15s ease;
  position: relative;
}

.cell .gem::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 20%;
  width: 40%;
  height: 30%;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  filter: blur(6px);
}

.cell:hover .gem {
  transform: translateY(-2px) scale(1.05);
}

.gem.type-0 {
  background: linear-gradient(135deg, #ff8787, #f03e3e, #c92a2a);
  box-shadow: 0 2px 0 rgba(255,255,255,0.2) inset, 0 8px 16px rgba(240,62,62,0.4), 0 0 20px rgba(255,77,109,0.3);
}

.gem.type-1 {
  background: linear-gradient(135deg, #74c0fc, #228be6, #1864ab);
  box-shadow: 0 2px 0 rgba(255,255,255,0.2) inset, 0 8px 16px rgba(34,139,230,0.4), 0 0 20px rgba(77,171,247,0.3);
}

.gem.type-2 {
  background: linear-gradient(135deg, #69db7c, #2b8a3e, #1b5e20);
  box-shadow: 0 2px 0 rgba(255,255,255,0.2) inset, 0 8px 16px rgba(43,138,62,0.4), 0 0 20px rgba(81,207,102,0.3);
}

.gem.type-3 {
  background: linear-gradient(135deg, #ffe066, #f08c00, #d97706);
  box-shadow: 0 2px 0 rgba(255,255,255,0.2) inset, 0 8px 16px rgba(240,140,0,0.4), 0 0 20px rgba(255,212,59,0.3);
}

.selected {
  outline: 3px solid var(--atk);
  outline-offset: -3px;
  animation: select-pulse 0.6s ease-in-out infinite;
}

@keyframes select-pulse {
  0%, 100% { outline-color: var(--atk); }
  50% { outline-color: #ffe066; }
}

.match-pop {
  animation: pop 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes pop {
  0% { transform: scale(0.8); filter: brightness(1.5); }
  50% { transform: scale(1.15); filter: brightness(1.8); }
  100% { transform: scale(1); filter: brightness(1); }
}

.clearing {
  animation: vanish 0.25s ease forwards;
}

@keyframes vanish {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.3) rotate(180deg); }
}

.battle-skills {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.skill-btn {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 100px;
}

.skill-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--panel-light), var(--panel));
  border-color: var(--primary);
  transform: translateY(-2px);
}

.skill-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.skill-icon {
  font-size: 24px;
}

.skill-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-bright);
}

.skill-cost {
  font-size: 10px;
  color: var(--muted);
}

/* ========================================
   OVERLAY / MODAL
   ======================================== */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  z-index: 10000;
  animation: fadeIn 0.3s ease;
}

.overlay.hidden {
  display: none;
}

.dialog {
  background: linear-gradient(135deg, var(--panel-2), var(--panel));
  padding: 40px;
  border-radius: 24px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  border: 2px solid rgba(255, 255, 255, 0.1);
  animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.dialog h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--atk), #f08c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dialog p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.dialog-btn {
  background: linear-gradient(135deg, var(--success), #2b8a3e);
  color: white;
  border: none;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(81, 207, 102, 0.3);
}

.dialog-btn:hover {
  background: linear-gradient(135deg, #69db7c, var(--success));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(81, 207, 102, 0.4);
}

.battle-rewards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.battle-rewards .reward-item {
  padding: 12px 20px;
  font-size: 16px;
}

.battle-rewards .reward-item.special {
  background: linear-gradient(135deg, var(--atk), #f08c00);
  font-size: 18px;
  animation: pulse 2s ease-in-out infinite;
}

.welcome-content {
  text-align: left;
  font-size: 15px;
  line-height: 2;
}

.welcome-content p {
  margin-bottom: 8px;
}

/* Pet Select Modal */
.pet-select-dialog {
  max-width: 800px;
}

.pet-select-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  margin: 24px 0;
  max-height: 400px;
  overflow-y: auto;
}

.pet-select-card {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  position: relative;
}

.pet-select-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.pet-select-card.selected {
  border-color: var(--success);
  background: rgba(81, 207, 102, 0.1);
  cursor: not-allowed;
}

.pet-emoji-medium {
  font-size: 48px;
  margin-bottom: 8px;
}

.pet-name-medium {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.pet-level-medium {
  font-size: 12px;
  color: var(--muted);
}

.selected-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--success);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 1200px) {
  .battle-container {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .board {
    width: 100%;
    max-width: 480px;
    height: auto;
    aspect-ratio: 1;
  }
}

@media (max-width: 900px) {
  .prepare-container {
    grid-template-columns: 1fr;
  }
  
  .selected-pets {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .game-title {
    font-size: 48px;
  }
  
  .planets-grid,
  .stages-grid,
  .pets-grid {
    grid-template-columns: 1fr;
  }
  
  .selected-pets {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}