/* ===== Back to Arcade Button ===== */
.back-to-arcade {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.7);
  color: #a78bfa;
  text-decoration: none;
  font-family: var(--font-display, 'Segoe UI', sans-serif);
  font-size: 14px;
  border: 2px solid #a78bfa;
  border-radius: 20px;
  transition: all 0.2s;
  z-index: 100;
  pointer-events: auto;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-arcade:hover,
.back-to-arcade:active {
  background: #a78bfa;
  color: #1a1a2e;
  transform: scale(1.05);
}

@media (pointer: coarse) {
  .back-to-arcade {
    top: 10px;
    left: 10px;
    padding: 12px 20px;
    font-size: 13px;
  }
}

@media screen and (max-height: 500px) and (orientation: landscape) {
  .back-to-arcade {
    top: 5px;
    left: 5px;
    padding: 8px 14px;
    font-size: 12px;
    min-height: 36px;
  }
}

/* ===== Game Container ===== */
body {
  background: #0a0a0a;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

#game-container {
  position: relative;
  width: var(--game-width);
  height: var(--game-height);
  max-width: 100vw;
  max-height: 100vh;
  background: var(--bg-primary);
  overflow: hidden;
  border: 2px solid var(--ui-border);
  border-radius: 4px;
}

#game-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ===== Screen System ===== */
.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  pointer-events: auto;
}

.screen.active {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* ===== Buttons ===== */
.menu-btn {
  display: block;
  width: 220px;
  padding: 12px 24px;
  margin: 8px auto;
  background: var(--ui-bg-solid);
  color: var(--text-primary);
  border: 2px solid var(--ui-border);
  border-radius: 4px;
  font-size: 16px;
  font-family: var(--font-display);
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: all 0.2s;
}

.menu-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
}

.menu-btn:active:not(:disabled) {
  transform: translateY(0);
}

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

.menu-btn.primary {
  background: var(--accent);
  border-color: var(--accent-hover);
}

.menu-btn.primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.menu-btn.danger {
  border-color: var(--danger);
}

.menu-btn.danger:hover {
  background: var(--danger);
  border-color: var(--danger-hover);
}

/* ===== Title Screen ===== */
#screen-title {
  background: linear-gradient(180deg, #0d1b0d 0%, #1a2e1a 40%, #2d4a2d 100%);
}

.title-content {
  text-align: center;
  z-index: 1;
}

.game-title {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--coin-color);
  text-shadow: 0 0 20px rgba(255, 213, 79, 0.4), 0 2px 4px rgba(0, 0, 0, 0.8);
  margin-bottom: 8px;
}

.game-subtitle {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 40px;
}

.title-menu {
  margin-top: 20px;
}

.title-stars {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(1px 1px at 30% 25%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1px 1px at 50% 10%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 70% 30%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(1px 1px at 90% 20%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(2px 2px at 20% 40%, rgba(255,213,79,0.4) 50%, transparent 50%),
    radial-gradient(1px 1px at 80% 45%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1px 1px at 15% 55%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(1px 1px at 60% 50%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(2px 2px at 45% 60%, rgba(255,213,79,0.3) 50%, transparent 50%);
  animation: twinkle 4s ease-in-out infinite alternate;
}

@keyframes twinkle {
  0% { opacity: 0.6; }
  100% { opacity: 1; }
}

/* ===== HUD ===== */
#hud {
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
}

#hud.active {
  display: flex;
}

.hud-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.7);
  border-bottom: 1px solid var(--ui-border);
}

.hud-hp, .hud-mana {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hud-label {
  color: var(--text-dim);
  font-size: 12px;
  font-weight: bold;
  min-width: 22px;
}

.hp-bar-container, .mana-bar-container {
  width: 120px;
  height: 14px;
  background: var(--hp-bg);
  border-radius: 2px;
  overflow: hidden;
}

.mana-bar-container {
  background: var(--mana-bg);
}

.hp-bar {
  width: 100%;
  height: 100%;
  background: var(--hp-color);
  transition: width 0.3s;
}

.mana-bar {
  width: 100%;
  height: 100%;
  background: var(--mana-color);
  transition: width 0.3s;
}

.hp-text, .mana-text {
  color: var(--text-secondary);
  font-size: 12px;
  min-width: 60px;
}

.hud-coins {
  margin-left: auto;
  color: var(--coin-color);
  font-size: 16px;
  font-weight: bold;
}

.coin-icon {
  margin-right: 2px;
}

.hud-pet {
  margin-left: 12px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: petHop 0.8s ease-in-out infinite;
}

.hud-pet:empty {
  display: none;
}

.hud-pet canvas {
  image-rendering: pixelated;
  filter: drop-shadow(0 0 4px rgba(255, 215, 0, 0.4));
}

@keyframes petHop {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.hud-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.7);
  border-top: 1px solid var(--ui-border);
  color: var(--text-secondary);
  font-size: 14px;
}

.hud-btn {
  pointer-events: auto;
  padding: 4px 12px;
  background: var(--ui-bg-solid);
  color: var(--text-primary);
  border: 1px solid var(--ui-border);
  border-radius: 3px;
  font-size: 12px;
}

.hud-btn:hover {
  background: var(--accent);
}

/* ===== Realm Select ===== */
.realm-select-title {
  font-family: var(--font-display);
  color: var(--coin-color);
  font-size: 32px;
  margin-bottom: 24px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

#screen-realm-select {
  background: linear-gradient(180deg, #0d1b0d 0%, #1a2e1a 50%, #0d1b0d 100%);
}

.realm-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 700px;
}

.realm-card {
  width: 150px;
  padding: 20px 16px;
  background: var(--ui-bg);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.realm-card:hover:not(.locked) {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.realm-card.locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.realm-card.completed {
  border-color: var(--coin-color);
}

.realm-card .realm-icon {
  font-size: 40px;
  margin-bottom: 8px;
}

.realm-card .realm-name {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
  margin-bottom: 4px;
}

.realm-card .realm-progress {
  color: var(--text-dim);
  font-size: 12px;
}

.realm-select-footer {
  margin-top: 24px;
}

/* ===== Level Intro ===== */
#screen-level-intro {
  background: rgba(0, 0, 0, 0.85);
}

.level-intro-content {
  text-align: center;
  max-width: 500px;
  padding: 32px;
}

.level-intro-content h2 {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 18px;
  margin-bottom: 8px;
}

.level-intro-content h3 {
  font-family: var(--font-display);
  color: var(--coin-color);
  font-size: 28px;
  margin-bottom: 16px;
}

.level-intro-content p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 12px;
}

.objective-text {
  color: var(--warning) !important;
  font-weight: bold;
  border: 1px solid var(--warning);
  padding: 8px 16px;
  border-radius: 4px;
  margin-bottom: 20px !important;
}

/* ===== Level Complete ===== */
#screen-level-complete {
  background: rgba(0, 0, 0, 0.85);
}

.level-complete-content {
  text-align: center;
  padding: 32px;
}

.level-complete-content h2 {
  font-family: var(--font-display);
  color: var(--coin-color);
  font-size: 36px;
  margin-bottom: 20px;
  text-shadow: 0 0 20px rgba(255, 213, 79, 0.4);
}

.level-rewards {
  color: var(--text-secondary);
  font-size: 18px;
  margin-bottom: 24px;
}

.level-rewards span {
  color: var(--coin-color);
  font-weight: bold;
}

/* ===== Pause Menu ===== */
#screen-pause {
  background: rgba(0, 0, 0, 0.8);
}

.pause-panel {
  text-align: center;
}

.pause-panel h2 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-size: 32px;
  margin-bottom: 24px;
}

/* ===== Inventory ===== */
#screen-inventory {
  background: rgba(0, 0, 0, 0.85);
}

.inventory-panel {
  background: var(--ui-bg);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  padding: 24px;
  width: 500px;
  max-height: 80%;
  overflow-y: auto;
}

.inventory-panel h2 {
  font-family: var(--font-display);
  color: var(--coin-color);
  text-align: center;
  margin-bottom: 16px;
}

.inventory-panel h3 {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
}

.equipped-slots {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.equip-slot {
  flex: 1;
  padding: 8px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  text-align: center;
}

.slot-label {
  display: block;
  color: var(--text-dim);
  font-size: 11px;
  margin-bottom: 4px;
}

.slot-item {
  color: var(--text-primary);
  font-size: 13px;
}

.inventory-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.inv-item {
  padding: 8px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  text-align: center;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.inv-item:hover {
  border-color: var(--accent);
}

.inv-item .item-qty {
  color: var(--text-dim);
  font-size: 10px;
}

/* ===== Game Over ===== */
#screen-gameover {
  background: rgba(20, 0, 0, 0.9);
}

.gameover-content {
  text-align: center;
}

.gameover-title {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--danger);
  text-shadow: 0 0 20px rgba(229, 57, 53, 0.5);
  margin-bottom: 12px;
}

.gameover-text {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 32px;
}

/* ===== Victory Screen ===== */
#screen-victory {
  background: linear-gradient(180deg, #0d1b2e 0%, #1a2e4a 50%, #2d4a6e 100%);
}

.victory-content {
  text-align: center;
}

.victory-title {
  font-family: var(--font-display);
  font-size: 52px;
  color: var(--coin-color);
  text-shadow: 0 0 30px rgba(255, 213, 79, 0.6);
  margin-bottom: 16px;
}

.victory-text {
  color: var(--text-primary);
  font-size: 18px;
  margin-bottom: 8px;
}

.victory-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  font-style: italic;
  margin-bottom: 32px;
}

/* ===== Transition ===== */
.transition {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  transition: opacity 0.4s;
}

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

/* ===== Shop ===== */
#screen-shop {
  background: rgba(0, 0, 0, 0.85);
}

.shop-panel {
  background: var(--ui-bg);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  padding: 24px;
  width: 560px;
  max-height: 85%;
  overflow-y: auto;
}

.shop-panel h2 {
  font-family: var(--font-display);
  color: var(--coin-color);
  text-align: center;
  margin-bottom: 16px;
}

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

.shop-tab {
  padding: 6px 16px;
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-secondary);
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.shop-tab.active {
  background: var(--accent);
  color: var(--text-primary);
  border-color: var(--accent-hover);
}

.shop-tab:hover:not(.active) {
  border-color: var(--accent);
}

.shop-inventory {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 16px;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 8px;
}

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

.shop-coins {
  color: var(--coin-color);
  font-size: 16px;
  font-weight: bold;
}

/* ===== Dialogue ===== */
#screen-dialogue {
  background: rgba(0, 0, 0, 0.7);
  justify-content: flex-end;
  padding-bottom: 60px;
}

.dialogue-box {
  background: var(--ui-bg);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  padding: 20px 24px;
  margin: 0 20px;
  width: calc(100% - 40px);
  max-width: 700px;
}

.dialogue-box p {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 12px;
}

.dialogue-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.dialogue-choices .menu-btn {
  width: auto;
  flex: 1;
  min-width: 140px;
  font-size: 13px;
  padding: 8px 12px;
}

.dialogue-next-btn {
  display: block;
  margin-left: auto;
  padding: 6px 20px;
  background: var(--accent);
  color: var(--text-primary);
  border: 1px solid var(--accent-hover);
  border-radius: 4px;
  font-size: 13px;
}

.dialogue-next-btn:hover {
  background: var(--accent-hover);
}

/* ===== Mini-map ===== */
.hud-minimap {
  margin-left: 12px;
  border: 2px solid var(--ui-border);
  border-radius: 4px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.5);
}

#minimap-canvas {
  display: block;
  image-rendering: pixelated;
}

/* ===== HUD Bottom Layout ===== */
.hud-bottom-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-bottom-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== Equipment Panel ===== */
.equipment-panel {
  position: absolute;
  bottom: 50px;
  right: 12px;
  width: 220px;
  background: var(--ui-bg);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  padding: 12px;
  pointer-events: auto;
  z-index: 10;
}

.equipment-panel.hidden {
  display: none;
}

.equipment-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  color: var(--coin-color);
  font-family: var(--font-display);
  font-size: 14px;
}

.close-btn {
  background: none;
  border: 1px solid var(--ui-border);
  color: var(--text-dim);
  width: 20px;
  height: 20px;
  border-radius: 3px;
  font-size: 11px;
  cursor: pointer;
  line-height: 1;
}

.close-btn:hover {
  background: var(--danger);
  color: var(--text-primary);
}

.equipment-section {
  margin-bottom: 10px;
}

.equipment-label {
  color: var(--text-dim);
  font-size: 11px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.equip-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.equip-item {
  padding: 6px 8px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--ui-border);
  border-radius: 3px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.equip-item:hover {
  border-color: var(--accent);
}

.equip-item.equipped {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.2);
  color: var(--text-primary);
}

.equip-item .equip-status {
  font-size: 9px;
  color: var(--accent);
}

.equip-item.none {
  color: var(--text-dim);
  font-style: italic;
  cursor: default;
}

.equip-item.none:hover {
  border-color: var(--ui-border);
}

/* ===== Death Overlay ===== */
.death-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1.5s ease-in;
}

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

.death-overlay.hidden {
  display: none;
}

.death-text {
  color: var(--danger);
  font-family: var(--font-display);
  font-size: 32px;
  text-shadow: 0 0 20px rgba(229, 57, 53, 0.5);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.8s ease-out 0.5s, transform 0.8s ease-out 0.5s;
}

.death-overlay.active .death-text {
  opacity: 1;
  transform: scale(1);
}