/* ============================================
   PIXEL ARENA - Pixel Art Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&display=swap');

/* --- Pixel Art Design Tokens --- */
:root {
  --pixel-bg: #0a0a1a;
  --pixel-bg-deep: #050510;
  --pixel-card: #12122a;
  --pixel-border: #2a2a5a;
  --pixel-accent: #b388ff;
  --pixel-accent-glow: #b388ff60;
  --pixel-cyan: #00e5ff;
  --pixel-cyan-glow: #00e5ff50;
  --pixel-gold: #ffd700;
  --pixel-gold-glow: #ffd70050;
  --pixel-purple: #b388ff;
  --pixel-green: #69f0ae;
  --pixel-red: #ff5252;
  --pixel-orange: #ffab40;
  --pixel-hp-red: #ff1744;
  --pixel-hp-green: #00e676;
  --pixel-text: #e0e0ff;
  --pixel-text-dim: #8888bb;
  --pixel-shadow: 4px 4px 0px #000;
  --pixel-transition: 0.2s steps(3);
}

/* --- Reset & Base --- */
.arena-page * {
  box-sizing: border-box;
  image-rendering: pixelated;
}

.arena-page {
  font-family: 'VT323', monospace;
  background: var(--pixel-bg);
  color: var(--pixel-text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- Animated Starfield Background --- */
.arena-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1px 1px at 10% 20%, #fff8 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 60%, #fff6 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 10%, #fff4 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 80%, #fff6 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 40%, #fff8 0%, transparent 100%),
    radial-gradient(2px 2px at 15% 85%, var(--pixel-accent) 0%, transparent 100%),
    radial-gradient(2px 2px at 85% 15%, var(--pixel-cyan) 0%, transparent 100%),
    radial-gradient(2px 2px at 45% 50%, var(--pixel-gold) 0%, transparent 100%);
  animation: twinkle 4s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

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

/* --- CRT Scanline Effect --- */
.arena-page::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  z-index: 999;
}

/* --- Pixel Header --- */
.pixel-header {
  position: relative;
  z-index: 10;
  background: linear-gradient(180deg, #1a1a3e 0%, var(--pixel-bg) 100%);
  border-bottom: 4px solid var(--pixel-accent);
  padding: 16px 20px;
  box-shadow: 0 4px 0 #000, 0 8px 30px var(--pixel-accent-glow);
}

.pixel-header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pixel-header .back-link {
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  color: var(--pixel-cyan);
  text-decoration: none;
  padding: 8px 16px;
  border: 2px solid var(--pixel-cyan);
  background: transparent;
  cursor: pointer;
  transition: var(--pixel-transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pixel-header .back-link:hover {
  background: var(--pixel-cyan);
  color: var(--pixel-bg);
  box-shadow: 0 0 20px var(--pixel-cyan-glow);
}

.pixel-logo-text {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(8px, 2vw, 12px);
  color: var(--pixel-accent);
  text-shadow: 2px 2px 0 #000, 0 0 20px var(--pixel-accent-glow);
  letter-spacing: 2px;
}

/* --- Main Content --- */
.pixel-main {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

/* --- Hero Section --- */
.game-hero {
  text-align: center;
  padding: 50px 20px 40px;
  position: relative;
}

.game-hero-title {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(16px, 4vw, 32px);
  color: var(--pixel-gold);
  text-shadow:
    3px 3px 0 #000,
    0 0 40px var(--pixel-gold-glow),
    0 0 80px var(--pixel-gold-glow);
  margin-bottom: 16px;
  animation: pixelFloat 3s ease-in-out infinite;
  line-height: 1.6;
}

@keyframes pixelFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.game-hero-subtitle {
  font-family: 'VT323', monospace;
  font-size: clamp(18px, 3vw, 28px);
  color: var(--pixel-cyan);
  text-shadow: 0 0 15px var(--pixel-cyan-glow);
  margin-bottom: 8px;
}

/* =============================================
   PIXEL FIGHTING GAME
   ============================================= */

.game-section {
  margin: 20px 0 60px;
}

.game-intro {
  text-align: center;
  margin-bottom: 30px;
}

.game-intro h2 {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(12px, 3vw, 20px);
  color: var(--pixel-gold);
  text-shadow: 3px 3px 0 #000, 0 0 30px var(--pixel-gold-glow);
  margin-bottom: 12px;
  line-height: 1.8;
}

.game-intro p {
  font-size: 20px;
  color: var(--pixel-text-dim);
}

/* --- Arena Container --- */
.arena-container {
  background: var(--pixel-card);
  border: 4px solid var(--pixel-border);
  box-shadow: var(--pixel-shadow), 0 0 60px rgba(0,229,255,0.1);
  overflow: hidden;
}

/* --- Round Display --- */
.round-banner {
  background: linear-gradient(90deg, var(--pixel-accent), var(--pixel-cyan));
  padding: 10px;
  text-align: center;
  font-family: 'Press Start 2P', cursive;
  font-size: 14px;
  color: #000;
  text-shadow: none;
  letter-spacing: 2px;
  animation: bannerPulse 2s ease-in-out infinite;
}

@keyframes bannerPulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.3); }
}

/* --- Fighter Display Area --- */
.fighters-display {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 30px 20px 20px;
  background: linear-gradient(180deg, #0d0d2b 0%, #1a0a2e 50%, #200a1a 100%);
  min-height: 280px;
  position: relative;
  overflow: hidden;
}

.fighters-display::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  height: 60px;
  background: linear-gradient(180deg, transparent, rgba(255,107,157,0.1));
}

/* --- Floor Grid --- */
.fighters-display::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  height: 40px;
  background: repeating-linear-gradient(
    90deg,
    var(--pixel-border) 0px,
    var(--pixel-border) 2px,
    transparent 2px,
    transparent 30px
  );
  opacity: 0.3;
}

/* --- Fighter --- */
.fighter {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
  flex: 1;
}

.fighter-name {
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  text-shadow: 2px 2px 0 #000;
  letter-spacing: 1px;
}

.fighter.player .fighter-name { color: var(--pixel-cyan); }
.fighter.enemy .fighter-name { color: var(--pixel-red); }

/* --- Character Anim --- */
.fighter.attacking {
  animation: attackAnim 0.3s steps(3) forwards;
}

@keyframes attackAnim {
  0% { transform: translateX(0); }
  50% { transform: translateX(30px); }
  100% { transform: translateX(0); }
}

.fighter.enemy.attacking {
  animation: attackAnimEnemy 0.3s steps(3) forwards;
}

@keyframes attackAnimEnemy {
  0% { transform: translateX(0); }
  50% { transform: translateX(-30px); }
  100% { transform: translateX(0); }
}

.fighter.hit {
  animation: hitFlash 0.4s steps(4);
}

@keyframes hitFlash {
  0%, 40%, 80% { opacity: 1; filter: brightness(3); }
  20%, 60%, 100% { opacity: 0.5; filter: brightness(1); }
}

/* --- Health Bar --- */
.hp-bar-container {
  width: 100%;
  max-width: 200px;
}

.hp-label {
  display: flex;
  justify-content: space-between;
  font-family: 'Press Start 2P', cursive;
  font-size: 8px;
  margin-bottom: 4px;
  color: var(--pixel-text-dim);
}

.hp-bar-outer {
  width: 100%;
  height: 16px;
  background: #1a1a1a;
  border: 2px solid #444;
  position: relative;
  overflow: hidden;
}

.hp-bar-inner {
  height: 100%;
  background: linear-gradient(180deg, var(--pixel-hp-green) 0%, #00c853 100%);
  transition: width 0.5s steps(10);
  position: relative;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,0.3);
}

.hp-bar-inner.low {
  background: linear-gradient(180deg, var(--pixel-orange) 0%, #ff6d00 100%);
}

.hp-bar-inner.critical {
  background: linear-gradient(180deg, var(--pixel-hp-red) 0%, #d50000 100%);
  animation: criticalPulse 0.5s steps(2) infinite;
}

@keyframes criticalPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* HP bar shine */
.hp-bar-inner::before {
  content: '';
  position: absolute;
  top: 1px;
  left: 0; right: 0;
  height: 4px;
  background: rgba(255,255,255,0.3);
}

/* --- VS Emblem --- */
.vs-emblem {
  font-family: 'Press Start 2P', cursive;
  font-size: 28px;
  color: var(--pixel-gold);
  text-shadow: 3px 3px 0 #000, 0 0 30px var(--pixel-gold-glow);
  z-index: 3;
  flex-shrink: 0;
  animation: vsPulse 2s ease-in-out infinite;
  align-self: center;
}

@keyframes vsPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* --- Battle Log --- */
.battle-log {
  background: rgba(0,0,0,0.6);
  border-top: 2px solid var(--pixel-border);
  padding: 12px 16px;
  min-height: 60px;
  max-height: 100px;
  overflow-y: auto;
  font-size: 16px;
  color: var(--pixel-text-dim);
}

.battle-log-entry {
  padding: 2px 0;
  animation: logSlide 0.3s ease;
}

@keyframes logSlide {
  from { transform: translateX(-20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.battle-log-entry.damage { color: var(--pixel-red); }
.battle-log-entry.heal { color: var(--pixel-green); }
.battle-log-entry.info { color: var(--pixel-cyan); }
.battle-log-entry.critical { color: var(--pixel-gold); font-weight: bold; }

/* --- Skills Panel --- */
.skills-panel {
  background: linear-gradient(180deg, #15152f 0%, #0d0d20 100%);
  border-top: 4px solid var(--pixel-border);
  padding: 16px;
}

.skills-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  color: var(--pixel-text-dim);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  max-width: 700px;
  margin: 0 auto;
}

.skill-btn {
  font-family: 'Press Start 2P', cursive;
  font-size: 9px;
  padding: 14px 10px;
  border: 3px solid var(--pixel-border);
  background: var(--pixel-card);
  color: var(--pixel-text);
  cursor: pointer;
  transition: var(--pixel-transition);
  position: relative;
  overflow: hidden;
  text-align: center;
  line-height: 1.6;
}

.skill-btn::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--skill-color, var(--pixel-cyan));
  opacity: 0.6;
}

.skill-btn:hover:not(:disabled) {
  border-color: var(--skill-color, var(--pixel-cyan));
  box-shadow: 0 0 20px color-mix(in srgb, var(--skill-color, var(--pixel-cyan)) 40%, transparent);
  transform: translateY(-2px);
}

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

.skill-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  filter: grayscale(1);
}

.skill-btn .skill-icon {
  font-size: 22px;
  display: block;
  margin-bottom: 6px;
  filter: drop-shadow(0 0 5px var(--skill-color, var(--pixel-cyan)));
}

.skill-btn .skill-name {
  display: block;
  margin-bottom: 4px;
}

.skill-btn .skill-dmg {
  display: block;
  font-size: 7px;
  color: var(--pixel-text-dim);
}

.skill-btn .skill-cooldown {
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 7px;
  color: var(--pixel-orange);
  display: none;
}

.skill-btn.on-cooldown .skill-cooldown {
  display: block;
}

/* --- Game Over Overlay --- */
.game-over-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 50;
  animation: fadeIn 0.5s ease;
}

.game-over-overlay.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.game-over-title {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(18px, 5vw, 36px);
  margin-bottom: 16px;
  text-shadow: 3px 3px 0 #000;
  animation: winShake 0.5s ease-in-out;
}

@keyframes winShake {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(-3deg); }
  75% { transform: rotate(3deg); }
}

.game-over-title.victory { color: var(--pixel-gold); }
.game-over-title.defeat { color: var(--pixel-red); }

.game-over-subtitle {
  font-family: 'VT323', monospace;
  font-size: 24px;
  color: var(--pixel-text-dim);
  margin-bottom: 24px;
}

.restart-btn {
  font-family: 'Press Start 2P', cursive;
  font-size: 12px;
  padding: 16px 32px;
  border: 3px solid var(--pixel-gold);
  background: transparent;
  color: var(--pixel-gold);
  cursor: pointer;
  transition: var(--pixel-transition);
  animation: btnGlow 2s ease-in-out infinite;
}

@keyframes btnGlow {
  0%, 100% { box-shadow: 0 0 10px var(--pixel-gold-glow); }
  50% { box-shadow: 0 0 30px var(--pixel-gold-glow); }
}

.restart-btn:hover {
  background: var(--pixel-gold);
  color: #000;
}

/* --- Round Transition --- */
.round-transition {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 40;
}

.round-transition.active {
  display: flex;
}

.round-transition-text {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(20px, 5vw, 40px);
  color: var(--pixel-gold);
  text-shadow: 3px 3px 0 #000, 0 0 40px var(--pixel-gold-glow);
  animation: roundZoom 1s ease-out forwards;
}

@keyframes roundZoom {
  0% { transform: scale(3); opacity: 0; }
  50% { transform: scale(1); opacity: 1; }
  80% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); opacity: 0; }
}

/* --- Damage Popup --- */
.damage-popup {
  position: absolute;
  font-family: 'Press Start 2P', cursive;
  font-size: 16px;
  color: var(--pixel-red);
  text-shadow: 2px 2px 0 #000;
  pointer-events: none;
  animation: dmgPopup 0.8s ease-out forwards;
  z-index: 30;
}

.damage-popup.heal {
  color: var(--pixel-green);
}

.damage-popup.crit {
  color: var(--pixel-gold);
  font-size: 22px;
}

@keyframes dmgPopup {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(-60px) scale(0.5); opacity: 0; }
}

/* --- Character Canvas --- */
.pixel-character-canvas {
  width: 80px;
  height: 120px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* --- Floating Pixel --- */
.floating-pixel {
  position: fixed;
  z-index: 1;
  pointer-events: none;
  animation: pixelFloatAnim linear infinite;
}

@keyframes pixelFloatAnim {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-10vh) rotate(360deg); opacity: 0; }
}

/* --- Pixel Footer --- */
.pixel-footer {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 30px 20px;
  border-top: 4px solid var(--pixel-border);
  background: var(--pixel-bg-deep);
}

.pixel-footer p {
  font-family: 'Press Start 2P', cursive;
  font-size: 8px;
  color: var(--pixel-text-dim);
  line-height: 2;
}

.pixel-footer a {
  color: var(--pixel-accent);
  text-decoration: none;
}

.pixel-footer a:hover {
  color: var(--pixel-cyan);
}

/* --- Scrollbar --- */
.arena-page ::-webkit-scrollbar {
  width: 8px;
}

.arena-page ::-webkit-scrollbar-track {
  background: var(--pixel-bg);
}

.arena-page ::-webkit-scrollbar-thumb {
  background: var(--pixel-border);
  border-radius: 0;
}

.arena-page ::-webkit-scrollbar-thumb:hover {
  background: var(--pixel-accent);
}