:root {
  --red: #FF3B30;
  --blue: #007AFF;
  --yellow: #FFD60A;
  --pink: #FF2D55;
  --teal: #30D5C8;
  --lavender: #B388FF;
  --black: #1A1A1A;
  --white: #FAFAFA;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background-color: #FFF0E6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Terrazzo background */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  background-image:
    radial-gradient(ellipse 8px 6px at 15% 25%, var(--red) 0%, transparent 100%),
    radial-gradient(ellipse 6px 10px at 45% 15%, var(--blue) 0%, transparent 100%),
    radial-gradient(ellipse 10px 5px at 75% 35%, var(--yellow) 0%, transparent 100%),
    radial-gradient(ellipse 5px 8px at 25% 65%, var(--teal) 0%, transparent 100%),
    radial-gradient(ellipse 7px 7px at 85% 75%, var(--pink) 0%, transparent 100%),
    radial-gradient(ellipse 9px 4px at 55% 85%, var(--lavender) 0%, transparent 100%),
    radial-gradient(ellipse 4px 9px at 35% 45%, var(--red) 0%, transparent 100%),
    radial-gradient(ellipse 6px 6px at 65% 55%, var(--blue) 0%, transparent 100%),
    radial-gradient(ellipse 8px 5px at 10% 90%, var(--yellow) 0%, transparent 100%),
    radial-gradient(ellipse 5px 7px at 90% 10%, var(--teal) 0%, transparent 100%),
    radial-gradient(ellipse 7px 4px at 50% 50%, var(--pink) 0%, transparent 100%),
    radial-gradient(ellipse 3px 8px at 20% 80%, var(--lavender) 0%, transparent 100%),
    radial-gradient(ellipse 6px 3px at 80% 40%, var(--red) 0%, transparent 100%),
    radial-gradient(ellipse 4px 6px at 40% 70%, var(--blue) 0%, transparent 100%),
    radial-gradient(ellipse 8px 8px at 70% 20%, var(--yellow) 0%, transparent 100%);
  background-color: #FFF0E6;
  opacity: 0.4;
}

.font-bungee { font-family: 'Bungee', cursive; }
.font-bungee-shade { font-family: 'Bungee Shade', cursive; }
.font-mono { font-family: 'JetBrains Mono', monospace; }

.memphis-border {
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0px var(--pink);
}

.memphis-border-blue {
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0px var(--blue);
}

.memphis-border-yellow {
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0px var(--yellow);
}

.memphis-border-teal {
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0px var(--teal);
}

.memphis-border-lavender {
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0px var(--lavender);
}

/* Main click button */
.click-btn {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 5px solid var(--black);
  background: linear-gradient(135deg, var(--red), var(--pink));
  cursor: pointer;
  transition: transform 0.1s ease;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.click-btn:active {
  transform: scale(0.92);
}

.click-btn:hover {
  filter: brightness(1.1);
}

.click-btn.bonus-active {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  animation: bonusPulse 0.5s ease infinite alternate;
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.6);
}

@keyframes bonusPulse {
  from { transform: scale(1); filter: brightness(1); }
  to { transform: scale(1.05); filter: brightness(1.2); }
}

@keyframes pointPop {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-80px) scale(1.5); }
}

.point-pop {
  animation: pointPop 0.8s ease-out forwards;
  pointer-events: none;
  position: absolute;
  font-family: 'Bungee', cursive;
  font-size: 24px;
  color: var(--yellow);
  text-shadow: 2px 2px 0 var(--black);
  z-index: 100;
}

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

.score-pulse {
  animation: scoreGrow 0.2s ease;
}

/* Particle system */
@keyframes particleFly {
  0% { opacity: 1; transform: translate(0, 0) rotate(0deg) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) rotate(720deg) scale(0); }
}

.particle {
  position: absolute;
  pointer-events: none;
  animation: particleFly 0.7s ease-out forwards;
}

/* Floating decoration */
@keyframes floatShape {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(180deg); }
  100% { transform: translateY(0) rotate(360deg); }
}

.float-shape {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
  animation: floatShape var(--duration) ease-in-out infinite;
}

/* Tab styling */
.tab-btn {
  border: 3px solid var(--black);
  padding: 8px 16px;
  font-family: 'Bungee', cursive;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
  clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%);
  min-width: 100px;
  text-align: center;
}

@media (max-width: 640px) {
  .tab-btn {
    clip-path: none;
    border-radius: 4px;
    min-width: auto;
    padding: 8px 10px;
    font-size: 11px;
  }
  .click-btn {
    width: 160px;
    height: 160px;
  }
}

.tab-btn.active {
  transform: translateY(-2px);
  box-shadow: 3px 3px 0 var(--black);
}

/* Upgrade card */
.upgrade-card {
  border: 3px solid var(--black);
  padding: 12px;
  background: white;
  transition: all 0.15s ease;
  cursor: pointer;
}

.upgrade-card:hover:not(.max-level) {
  transform: translateY(-2px);
  box-shadow: 4px 4px 0 var(--black);
}

.upgrade-card.max-level {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Achievement badge */
.achievement-badge {
  border: 3px solid var(--black);
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8px;
  transition: transform 0.2s;
}

.achievement-badge.unlocked {
  background: linear-gradient(135deg, var(--yellow), #FFA500);
}

.achievement-badge.locked {
  background: #ddd;
  filter: grayscale(0.8);
}

.achievement-badge.unlocked:hover {
  transform: scale(1.05);
}

/* Content card */
.content-card {
  border: 3px solid var(--black);
  background: white;
  overflow: hidden;
  transition: transform 0.2s;
}

.content-card:hover {
  transform: translateY(-2px);
}

/* Achievement toast */
@keyframes slideInToast {
  0% { transform: translateY(-100px); opacity: 0; }
  10% { transform: translateY(0); opacity: 1; }
  90% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-100px); opacity: 0; }
}

.achievement-toast {
  animation: slideInToast 3s ease forwards;
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  border: 4px solid var(--black);
  background: linear-gradient(135deg, var(--yellow), #FFA500);
  padding: 16px 32px;
  font-family: 'Bungee', cursive;
  box-shadow: 6px 6px 0 var(--black);
}

/* Squiggle pattern for decorative elements */
.squiggle-border {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 5px,
    rgba(0,0,0,0.05) 5px,
    rgba(0,0,0,0.05) 10px
  );
}

/* Confetti animation */
@keyframes confettiFall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.confetti-piece {
  position: fixed;
  top: -10px;
  z-index: 9998;
  pointer-events: none;
  animation: confettiFall 2s ease-in forwards;
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #FFF0E6; }
::-webkit-scrollbar-thumb { background: var(--black); border-radius: 4px; }

/* Card flip animation */
@keyframes cardReveal {
  0% { transform: rotateY(90deg) scale(0.8); opacity: 0; }
  100% { transform: rotateY(0deg) scale(1); opacity: 1; }
}

.card-reveal {
  animation: cardReveal 0.5s ease-out;
}

/* Title letter colors */
.title-m { color: var(--red); }
.title-e { color: var(--blue); }
.title-m2 { color: var(--yellow); }
.title-p { color: var(--pink); }
.title-h { color: var(--teal); }
.title-i { color: var(--lavender); }
.title-s { color: var(--red); }
.title-space { }
.title-m3 { color: var(--blue); }
.title-a { color: var(--yellow); }
.title-y { color: var(--pink); }
.title-h2 { color: var(--teal); }
.title-e2 { color: var(--red); }
.title-m4 { color: var(--lavender); }