/* public/style.css - NeonSlither.io Multiplayer & Economy */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
  --bg-color: #07080b;
  --neon-cyan: #00f0ff;
  --neon-emerald: #00ffaa;
  --neon-pink: #ff007f;
  --neon-purple: #a124ff;
  --neon-gold: #ffb703;
  --glass-bg: rgba(7, 8, 11, 0.76);
  --glass-border: rgba(0, 240, 255, 0.25);
  --text-primary: #ffffff;
  --text-secondary: #a0a5b5;
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-color);
  font-family: var(--font-family);
  color: var(--text-primary);
}

/* Base Canvas Styling */
#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: block;
}

/* General overlay class */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Glassmorphism Panel */
.panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 35px 30px;
  width: 92%;
  max-width: 490px;
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.65), 
              0 0 30px 4px rgba(0, 240, 255, 0.15);
  text-align: center;
  animation: panelEntrance 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes panelEntrance {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Typography */
h1.title {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 5px;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.5));
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 25px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Forms and Inputs */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--neon-cyan);
}

input[type="text"] {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-radius: 12px;
  color: #fff;
  font-size: 1.1rem;
  font-family: var(--font-family);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
}

input[type="text"]:focus {
  border-color: var(--neon-cyan);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
}

/* Stake buttons selector grid */
.stake-btn {
  padding: 12px 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 10px;
  color: #fff;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.stake-btn:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--neon-cyan);
  transform: translateY(-1px);
}

.stake-btn.active {
  background: linear-gradient(135deg, rgba(255, 183, 3, 0.15) 0%, rgba(251, 133, 0, 0.15) 100%);
  border-color: var(--neon-gold);
  color: var(--neon-gold);
  box-shadow: 0 0 15px rgba(251, 133, 0, 0.25);
  transform: scale(1.03);
}

/* Skin Selector */
.skin-selector {
  display: flex;
  gap: 12px;
  justify-content: flex-start;
  margin-bottom: 5px;
  padding: 6px 4px;
  overflow-x: auto;
}

.skin-option {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.skin-option::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: inherit;
  filter: brightness(1.2);
}

.skin-option:hover {
  transform: scale(1.15);
}

.skin-option.active {
  border-color: #ffffff;
  transform: scale(1.18);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.7);
}

/* Action Buttons */
.btn {
  display: inline-block;
  width: 100%;
  padding: 15px;
  font-size: 1.2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #000;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-emerald));
  border: none;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 6px 20px rgba(0, 240, 255, 0.45);
  margin-top: 10px;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 240, 255, 0.65),
              0 0 15px rgba(0, 240, 255, 0.3);
  filter: brightness(1.08);
}

.btn:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  box-shadow: none;
  margin-top: 15px;
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

/* Instructions / Game Rules Panel */
.instructions {
  margin-top: 20px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.instructions p {
  margin-bottom: 5px;
}

.instructions strong {
  color: var(--neon-cyan);
}

/* --- HUD (Heads-Up Display) --- */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  box-sizing: border-box;
}

/* Elements inside HUD should enable pointer events if they are interactive */
.hud-interactive {
  pointer-events: auto;
}

/* Top Stats & Leaderboard Row */
.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  width: 100%;
}

.score-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.score-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--neon-cyan);
  font-weight: 600;
}

.score-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.leaderboard {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 14px 18px;
  width: 260px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease;
}

.leaderboard-title {
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--neon-pink);
  margin-bottom: 10px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 0, 127, 0.2);
  padding-bottom: 6px;
  text-shadow: 0 0 8px rgba(255, 0, 127, 0.3);
}

.leaderboard-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.leaderboard-item.player-rank {
  color: var(--neon-cyan);
  font-weight: 800;
  text-shadow: 0 0 5px rgba(0, 240, 255, 0.3);
}

.leaderboard-item span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.leaderboard-item .rank-name {
  max-width: 155px;
}

/* Bottom Stats & Minimap Row */
.hud-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  width: 100%;
}

.game-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-chip {
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(0, 240, 255, 0.15);
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(5px);
}

.stat-chip span {
  color: #fff;
  font-weight: 800;
}

.minimap-container {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(7, 8, 11, 0.85);
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.55),
              0 0 15px rgba(0, 240, 255, 0.25);
  overflow: hidden;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

#minimapCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Connection Status Toast */
#connStatus {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: rgba(255, 0, 127, 0.85);
  color: #fff;
  border: 1px solid var(--neon-pink);
  border-radius: 30px;
  padding: 8px 24px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.5);
  transition: all 0.4s ease;
  pointer-events: none;
}

#connStatus.connected {
  background: rgba(0, 255, 170, 0.85);
  border-color: var(--neon-emerald);
  box-shadow: 0 0 15px rgba(0, 255, 170, 0.5);
}

/* --- Death Screen / Game Over --- */
.game-over-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
  background: rgba(255, 255, 255, 0.02);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.go-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.go-stat-label {
  color: var(--text-secondary);
}

.go-stat-value {
  font-weight: 800;
  color: #fff;
}

.go-stat-value.highlight {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.45);
}

/* Scrollbar customization for Skin Selector */
.skin-selector::-webkit-scrollbar {
  height: 4px;
}

.skin-selector::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.01);
  border-radius: 10px;
}

.skin-selector::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.35);
  border-radius: 10px;
}

.skin-selector::-webkit-scrollbar-thumb:hover {
  background: var(--neon-cyan);
}

/* Responsiveness adjustments */
@media (max-width: 600px) {
  .panel {
    padding: 30px 20px;
  }
  
  h1.title {
    font-size: 2.2rem;
  }
  
  .leaderboard {
    width: 195px;
    padding: 10px 12px;
  }
  
  .leaderboard-item {
    font-size: 0.74rem;
  }
  
  .score-val {
    font-size: 1.4rem;
  }
  
  .minimap-container {
    width: 100px;
    height: 100px;
  }
  
  .stake-btn {
    font-size: 0.85rem;
    padding: 10px 4px;
  }
}