@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Nunito:wght@400;600;700;800&family=Dancing+Script:wght@400;600;700&family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --ocean-dark: #020a1a;
  --ocean-mid: #041530;
  --ocean-light: #0a2a4a;
  --biolum-blue: #00aaff;
  --biolum-green: #00ffaa;
  --biolum-pink: #ff44cc;
  --biolum-purple: #aa44ff;
  --biolum-white: #eeeeff;
  --gold: #ffcc44;
  --coral: #ff6644;
  --pearl: #f0e8ff;
  --text-light: #cce8ff;
  --text-white: #ffffff;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

body {
  background: var(--ocean-dark);
  color: var(--text-white);
  font-family: 'Nunito', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* BUBBLES — appear on every page */
.bubble {
  position: fixed;
  border-radius: 50%;
  border: 1px solid rgba(100,200,255,0.3);
  background: rgba(100,200,255,0.05);
  pointer-events: none;
  animation: bubbleRise linear infinite;
  z-index: 0;
}

@keyframes bubbleRise {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-100px) translateX(20px); opacity: 0; }
}

/* BUTTONS */
.btn-main {
  background: linear-gradient(135deg, var(--biolum-blue), var(--biolum-purple));
  border: none;
  border-radius: 30px;
  padding: 16px 40px;
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.4rem, 2vw, 0.6rem);
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 25px rgba(0,170,255,0.4);
  line-height: 1.6;
}

.btn-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(0,170,255,0.7);
}

.btn-gold {
  background: linear-gradient(135deg, #ffcc44, #ff8844);
  box-shadow: 0 0 25px rgba(255,204,68,0.4);
}

.btn-gold:hover {
  box-shadow: 0 0 40px rgba(255,204,68,0.7);
}

/* CARDS */
.card {
  background: rgba(4,21,48,0.8);
  border: 1px solid rgba(0,170,255,0.2);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: rgba(0,170,255,0.5);
  box-shadow: 0 0 20px rgba(0,170,255,0.15);
}

/* GLOW TEXT */
.glow-blue { text-shadow: 0 0 15px rgba(0,170,255,0.8); color: var(--biolum-blue); }
.glow-pink { text-shadow: 0 0 15px rgba(255,68,204,0.8); color: var(--biolum-pink); }
.glow-green { text-shadow: 0 0 15px rgba(0,255,170,0.8); color: var(--biolum-green); }
.glow-gold { text-shadow: 0 0 15px rgba(255,204,68,0.8); color: var(--gold); }

/* PRESS START HEADERS */
.title-large {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.8rem, 4vw, 1.8rem);
  line-height: 1.8;
  letter-spacing: 3px;
}

.title-medium {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.5rem, 2.5vw, 1rem);
  line-height: 1.6;
}

.title-small {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.35rem, 1.5vw, 0.6rem);
  line-height: 1.5;
}

/* DANCING SCRIPT */
.script-large {
  font-family: 'Dancing Script', cursive;
  font-size: clamp(1.2rem, 4vw, 2.5rem);
  line-height: 1.5;
}

.script-medium {
  font-family: 'Dancing Script', cursive;
  font-size: clamp(1rem, 3vw, 1.8rem);
  line-height: 1.5;
}

/* COINS AND XP BAR */
.hud {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
}

.hud-item {
  background: rgba(4,21,48,0.9);
  border: 1px solid rgba(0,170,255,0.3);
  border-radius: 20px;
  padding: 8px 16px;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.4rem;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(10px);
  line-height: 1.4;
}

.xp-bar {
  width: 120px;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
}

.xp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--biolum-blue), var(--biolum-purple));
  border-radius: 3px;
  transition: width 0.5s ease;
  box-shadow: 0 0 8px rgba(0,170,255,0.6);
}

/* LOCKED OVERLAY */
.locked {
  position: relative;
  opacity: 0.5;
  pointer-events: none;
}

.locked::after {
  content: '🔒';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  font-size: 2rem;
}

/* NAV */
.nav-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(2,10,26,0.95);
  border-top: 1px solid rgba(0,170,255,0.2);
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  z-index: 100;
  backdrop-filter: blur(10px);
  flex-wrap: wrap;
}

.nav-btn {
  background: none;
  border: 1px solid rgba(0,170,255,0.2);
  border-radius: 20px;
  padding: 8px 16px;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.32rem;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1.4;
}

.nav-btn:hover, .nav-btn.active {
  border-color: var(--biolum-blue);
  color: var(--biolum-blue);
  box-shadow: 0 0 12px rgba(0,170,255,0.3);
}

/* RESPONSIVE */
@media (max-width: 600px) {
  .nav-bar { gap: 6px; padding: 10px 12px; }
  .nav-btn { padding: 6px 10px; font-size: 0.28rem; }
  .hud-item { font-size: 0.35rem; padding: 6px 12px; }
}