:root {
  --bg-primary: #0a0c10;
  --bg-secondary: #12161f;
  --gold-primary: #f59e0b;
  --gold-hover: #d97706;
  --gold-glow: rgba(245, 158, 11, 0.4);
  --glass-bg: rgba(20, 24, 33, 0.85);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --hp-green: #10b981;
  --hp-red: #ef4444;
  --xp-blue: #38bdf8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  margin: 0;
  padding: 0;
  overflow: hidden;
  position: fixed;
  inset: 0;
  background-color: var(--bg-primary);
  font-family: 'Outfit', sans-serif;
  color: var(--text-main);
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#game-wrapper {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: #0d1117;
  touch-action: none;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  background: radial-gradient(circle at center, #161b22 0%, #090d13 100%);
}

/* Top HUD */
#topHud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 14px;
  padding-top: max(10px, env(safe-area-inset-top));
  padding-left: max(12px, env(safe-area-inset-left));
  padding-right: max(12px, env(safe-area-inset-right));
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  z-index: 20;
}

#xpContainer {
  position: relative;
  width: 100%;
  height: 14px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

#xpBar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #0284c7, #38bdf8, #818cf8);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.7);
  transition: width 0.15s ease-out;
}

#levelBadge {
  position: absolute;
  right: 8px;
  top: -2px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.9);
}

#statsRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  width: 100%;
  box-sizing: border-box;
  pointer-events: auto;
}

.hud-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  padding: 5px 10px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.88rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  white-space: nowrap;
}

.hud-icon {
  font-size: 0.95rem;
  display: flex;
  align-items: center;
}

.hp-bar-outer {
  position: relative;
  width: 90px;
  height: 15px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 10px;
  overflow: hidden;
}

#hpBarInner {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #10b981);
  transition: width 0.2s ease;
}

#hpText {
  position: absolute;
  width: 100%;
  top: 1px;
  left: 0;
  text-align: center;
  font-size: 10px;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.icon-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  transform: scale(1.08);
  border-color: var(--gold-primary);
}

/* Weapons Dock */
#weaponsDock {
  display: flex;
  gap: 6px;
  pointer-events: none;
  z-index: 15;
  margin-top: 2px;
}

.weapon-slot {
  width: 32px;
  height: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  position: relative;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.weapon-lvl-tag {
  position: absolute;
  bottom: -3px;
  right: -3px;
  background: var(--gold-primary);
  color: #000;
  font-size: 8px;
  font-weight: 900;
  padding: 1px 3px;
  border-radius: 5px;
}

/* Touch Joystick */
#joystickZone {
  position: fixed;
  bottom: max(22px, calc(env(safe-area-inset-bottom) + 16px));
  left: max(22px, calc(env(safe-area-inset-left) + 16px));
  width: 120px;
  height: 120px;
  z-index: 25;
  pointer-events: auto;
  touch-action: none;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

#joystickZone.floating {
  position: fixed;
  margin: 0;
  z-index: 30;
  pointer-events: none;
}

#joystickBase {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, rgba(26, 32, 44, 0.45) 70%);
  border: 2px solid rgba(245, 158, 11, 0.4);
  box-shadow: 0 0 25px rgba(245, 158, 11, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease;
  pointer-events: none;
}

#joystickKnob {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b, #b45309);
  box-shadow: 0 4px 15px rgba(0,0,0,0.5), 0 0 12px var(--gold-glow);
  transform: translate(0px, 0px);
  pointer-events: none;
  transition: transform 0.04s ease-out;
}

/* Modals & Overlays */
.modal-backdrop {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  background: rgba(5, 7, 10, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  z-index: 100;
  transition: opacity 0.3s ease;
  overflow-y: auto;
  box-sizing: border-box;
}

.modal-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.modal-card {
  background: linear-gradient(165deg, rgba(26, 32, 44, 0.95), rgba(13, 17, 23, 0.98));
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 26px;
  padding: 30px 24px;
  max-width: 480px;
  width: 100%;
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0,0,0,0.8), 0 0 35px rgba(245, 158, 11, 0.15);
  animation: popIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-card.level-card {
  max-width: 650px;
}

@keyframes popIn {
  from { transform: scale(0.9) translateY(15px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.game-logo-badge {
  font-size: 3.5rem;
  margin-bottom: 10px;
  filter: drop-shadow(0 6px 15px rgba(245, 158, 11, 0.4));
  animation: pulseLogo 3s ease-in-out infinite alternate;
}

@keyframes pulseLogo {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.modal-title {
  font-family: 'Cinzel', serif;
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.modal-subtitle {
  color: var(--gold-primary);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 22px;
}

.instructions-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 16px;
  text-align: left;
  margin-bottom: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.instruction-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: #cbd5e1;
  line-height: 1.4;
}

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

kbd {
  background: #1e293b;
  border: 1px solid #475569;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.8rem;
  color: var(--gold-primary);
  box-shadow: 0 2px 0 #0f172a;
}

.primary-action-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-hover));
  color: #000;
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 1px;
  padding: 16px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
  transition: all 0.25s ease;
}

.primary-action-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.55);
}

.secondary-action-btn {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 14px;
  border-radius: 50px;
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 10px;
}

.secondary-action-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.back-home-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}

.back-home-link:hover {
  color: var(--gold-primary);
}

/* Upgrade Cards */
.levelup-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--gold-primary);
  font-family: 'Cinzel', serif;
  font-size: 1.8rem;
  margin-bottom: 6px;
}

.level-prompt {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 24px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.upgrade-card {
  background: rgba(20, 26, 38, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-align: center;
}

.upgrade-card:hover {
  transform: translateY(-8px) scale(1.04);
  border-color: var(--gold-primary);
  box-shadow: 0 12px 25px rgba(0,0,0,0.5), 0 0 20px var(--gold-glow);
  background: rgba(30, 41, 59, 0.95);
}

.upgrade-card-icon {
  font-size: 2.4rem;
  margin-bottom: 10px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
}

.upgrade-card-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}

.upgrade-card-lvl {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--gold-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.upgrade-card-desc {
  font-size: 0.82rem;
  color: #cbd5e1;
  line-height: 1.4;
}

/* Stats Summary Grid for Game Over */
.stats-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 22px 0;
}

.summary-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.summary-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.summary-val {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--gold-primary);
}

/* Mobile Responsiveness */
@media (max-width: 650px) {
  #topHud {
    padding: 6px 8px;
    padding-top: max(6px, env(safe-area-inset-top));
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
    gap: 6px;
  }

  #statsRow {
    gap: 4px;
  }

  .hud-pill {
    padding: 3px 6px;
    font-size: 0.76rem;
    gap: 4px;
    border-radius: 20px;
  }

  .hud-icon {
    font-size: 0.82rem;
  }

  .hp-bar-outer {
    width: 62px;
    height: 12px;
    border-radius: 6px;
  }

  #hpText {
    font-size: 8px;
    top: 0px;
  }

  .icon-btn {
    width: 30px;
    height: 30px;
    font-size: 13px;
    flex-shrink: 0;
  }

  #weaponsDock {
    gap: 4px;
  }

  .weapon-slot {
    width: 28px;
    height: 28px;
    font-size: 14px;
    border-radius: 7px;
  }

  .weapon-lvl-tag {
    font-size: 7px;
    padding: 0 2px;
  }

  #joystickZone {
    bottom: max(14px, calc(env(safe-area-inset-bottom) + 10px));
    left: max(14px, calc(env(safe-area-inset-left) + 10px));
    width: 105px;
    height: 105px;
  }

  #joystickBase {
    width: 94px;
    height: 94px;
  }

  #joystickKnob {
    width: 42px;
    height: 42px;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .upgrade-card {
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 12px;
    padding: 10px 14px;
  }

  .upgrade-card-icon {
    font-size: 1.8rem;
    margin-bottom: 0;
  }

  .upgrade-card-info {
    flex: 1;
  }

  .upgrade-card-name {
    font-size: 0.98rem;
  }

  .upgrade-card-desc {
    font-size: 0.76rem;
  }

  .modal-card {
    padding: 20px 16px;
    border-radius: 20px;
  }

  .game-logo-badge {
    font-size: 2.6rem;
    margin-bottom: 6px;
  }

  .modal-title {
    font-size: 1.6rem;
  }

  .modal-subtitle {
    font-size: 0.82rem;
    margin-bottom: 14px;
    letter-spacing: 2px;
  }

  .instructions-box {
    padding: 12px;
    margin-bottom: 16px;
    gap: 8px;
  }

  .instruction-item {
    font-size: 0.8rem;
    gap: 8px;
  }

  .primary-action-btn {
    padding: 12px;
    font-size: 1rem;
  }
}

/* Compact Landscape Viewports (Phones in Landscape) */
@media (max-height: 520px) {
  #topHud {
    padding: 4px 10px;
    padding-top: max(4px, env(safe-area-inset-top));
    padding-left: max(10px, env(safe-area-inset-left));
    padding-right: max(10px, env(safe-area-inset-right));
    gap: 4px;
  }

  #xpContainer {
    height: 10px;
  }

  #levelBadge {
    font-size: 9px;
    top: -3px;
  }

  .hud-pill {
    padding: 2px 6px;
    font-size: 0.72rem;
  }

  .hp-bar-outer {
    width: 60px;
    height: 11px;
  }

  #hpText {
    font-size: 8px;
  }

  .icon-btn {
    width: 26px;
    height: 26px;
    font-size: 12px;
  }

  #joystickZone {
    bottom: max(10px, calc(env(safe-area-inset-bottom) + 6px));
    left: max(10px, calc(env(safe-area-inset-left) + 6px));
    width: 90px;
    height: 90px;
  }

  #joystickBase {
    width: 82px;
    height: 82px;
  }

  #joystickKnob {
    width: 36px;
    height: 36px;
  }

  .modal-card {
    padding: 12px 16px;
    max-height: calc(100dvh - 16px);
  }

  .game-logo-badge {
    display: none;
  }

  .modal-title {
    font-size: 1.25rem;
    margin-bottom: 2px;
  }

  .modal-subtitle {
    font-size: 0.7rem;
    margin-bottom: 8px;
  }

  .instructions-box {
    padding: 8px 10px;
    margin-bottom: 10px;
    gap: 4px;
  }

  .instruction-item {
    font-size: 0.75rem;
  }

  .primary-action-btn {
    padding: 10px;
    font-size: 0.9rem;
  }

  .levelup-header {
    font-size: 1.2rem;
    margin-bottom: 2px;
  }

  .level-prompt {
    font-size: 0.8rem;
    margin-bottom: 8px;
  }

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

  .upgrade-card {
    padding: 6px 8px;
  }

  .upgrade-card-icon {
    font-size: 1.3rem;
    margin-bottom: 2px;
  }

  .upgrade-card-name {
    font-size: 0.82rem;
  }

  .upgrade-card-lvl {
    font-size: 0.65rem;
    margin-bottom: 2px;
  }

  .upgrade-card-desc {
    font-size: 0.68rem;
    line-height: 1.2;
  }
}

/* Ko-fi Button inside Modals */
.kofi-footer-container {
  margin: 14px 0 4px 0;
  display: flex;
  justify-content: center;
  width: 100%;
}
.kofi-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #000000 !important;
  font-family: var(--font-body), system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 9999px;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(245, 158, 11, 0.4);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
}
.kofi-button:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 26px rgba(245, 158, 11, 0.6);
  filter: brightness(1.05);
}
.kofi-icon {
  font-size: 1.15rem;
  display: inline-block;
  animation: kofi-wiggle 3.5s ease-in-out infinite;
  transform-origin: bottom center;
}
@keyframes kofi-wiggle {
  0%, 82%, 100% { transform: rotate(0deg); }
  86% { transform: rotate(-12deg); }
  90% { transform: rotate(10deg); }
  94% { transform: rotate(-6deg); }
  97% { transform: rotate(4deg); }
}