* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

body {
  font-family: 'Nunito', sans-serif;
  background: #1a3a1a;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60px 30px at 10% 20%, #2d5a2d55 0%, transparent 70%),
    radial-gradient(ellipse 80px 40px at 85% 15%, #2d5a2d44 0%, transparent 70%),
    radial-gradient(ellipse 50px 25px at 50% 80%, #2d5a2d44 0%, transparent 70%),
    radial-gradient(ellipse 70px 35px at 20% 70%, #2d5a2d33 0%, transparent 70%),
    radial-gradient(ellipse 90px 45px at 75% 60%, #2d5a2d33 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ===== SCREENS ===== */
.screen {
  display: none;
  position: relative;
  z-index: 1;
}
.screen.active { display: flex; }

/* ===== START SCREEN ===== */
#start-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 28px;
  padding: 40px;
}

.game-title {
  font-family: 'Fredoka One', cursive;
  font-size: 72px;
  color: #7fff7f;
  text-shadow: 0 4px 0 #2d6b2d, 0 8px 20px #00000088;
  line-height: 1;
  animation: titleBounce 2s ease-in-out infinite;
}

@keyframes titleBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.subtitle {
  font-size: 22px;
  color: #a8e6a8;
  font-weight: 600;
  letter-spacing: 1px;
  margin-top: 6px;
}

.frog-hero {
  font-size: 110px;
  filter: drop-shadow(0 8px 16px #00000066);
  animation: frogWiggle 1.5s ease-in-out infinite;
}

@keyframes frogWiggle {
  0%, 100% { transform: rotate(-5deg) scale(1); }
  50%       { transform: rotate(5deg) scale(1.05); }
}

/* Level pills on start screen */
.levels-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  max-width: 420px;
}

.level-pill {
  background: #ffffff12;
  border: 1.5px solid #7fff7f33;
  border-radius: 50px;
  padding: 6px 16px;
  color: #a8e6a8;
  font-size: 13px;
  font-weight: 600;
}

.start-btn {
  font-family: 'Fredoka One', cursive;
  font-size: 32px;
  color: #1a3a1a;
  background: linear-gradient(135deg, #7fff7f, #4fc94f);
  border: none;
  border-radius: 50px;
  padding: 16px 56px;
  cursor: pointer;
  box-shadow: 0 6px 0 #2d6b2d, 0 10px 30px #00000055;
  transition: all 0.1s;
  letter-spacing: 1px;
}


.start-btn:active {
  transform: translateY(3px);
  box-shadow: 0 3px 0 #2d6b2d, 0 6px 20px #00000044;
}

.btn-home {
  font-family: 'Fredoka One', cursive;
  font-size: 16px;
  color: #a8e6a888;
  background: transparent;
  border: 2px solid #7fff7f22;
  border-radius: 50px;
  padding: 10px 28px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: 0.5px;
}

.btn-home:active { transform: scale(0.95); }

/* ===== GAME SCREEN ===== */
#game-screen {
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
  min-height: 100vh;
  justify-content: center;
}

.hud {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #ffffff15;
  border: 1.5px solid #7fff7f44;
  border-radius: 50px;
  padding: 10px 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.hud-item {
  color: #c8f5c8;
  font-size: 15px;
  font-weight: 700;
}

.hud-small {
  color: #7fff7f88;
  font-size: 13px;
}

.hud-sep {
  color: #7fff7f44;
  font-size: 18px;
}

/* Maze canvas */
.maze-wrapper {
  position: relative;
  border: 3px solid #4fc94f88;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 40px #00ff0022, 0 16px 40px #00000066;
}

#maze-canvas {
  display: block;
  background: #0d2b0d;
}

/* ===== CONTROLS ===== */
.controls {
  display: grid;
  grid-template-areas:
    ". up ."
    "left down right";
  gap: 8px;
}

.ctrl-btn {
  width: 62px;
  height: 62px;
  border-radius: 16px;
  border: 2px solid #4fc94f88;
  background: #1e4a1e;
  color: #7fff7f;
  font-size: 26px;
  cursor: pointer;
  transition: all 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 0 #0d2b0d, 0 6px 20px #00000044;
  user-select: none;
  -webkit-user-select: none;
}

.ctrl-btn:active { transform: translateY(2px); box-shadow: 0 2px 0 #0d2b0d; }
.ctrl-btn.up    { grid-area: up; }
.ctrl-btn.left  { grid-area: left; }
.ctrl-btn.down  { grid-area: down; }
.ctrl-btn.right { grid-area: right; }

/* ===== WIN / LEVEL CLEAR SCREEN ===== */
#win-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 20px;
  padding: 40px;
}

.win-frog {
  font-size: 90px;
  animation: winDance 0.6s ease-in-out infinite alternate;
}

@keyframes winDance {
  from { transform: rotate(-10deg) translateY(0); }
  to   { transform: rotate(10deg)  translateY(-15px); }
}

.win-title {
  font-family: 'Fredoka One', cursive;
  font-size: 60px;
  color: #ffd700;
  text-shadow: 0 4px 0 #b8860b, 0 8px 20px #00000088;
  animation: winPop 0.5s ease-out;
}

@keyframes winPop {
  0%   { transform: scale(0.5); opacity: 0; }
  70%  { transform: scale(1.1); }
  100% { transform: scale(1);   opacity: 1; }
}

.win-level-name {
  color: #a8e6a8;
  font-size: 18px;
  font-weight: 700;
}

.moves-display {
  background: #ffffff15;
  border: 2px solid #ffd70055;
  border-radius: 20px;
  padding: 12px 28px;
  color: #ffd700;
  font-size: 20px;
  font-weight: 700;
}

.win-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.next-level-btn {
  font-family: 'Fredoka One', cursive;
  font-size: 22px;
  color: #1a3a1a;
  background: linear-gradient(135deg, #ffd700, #ffb700);
  border: none;
  border-radius: 50px;
  padding: 14px 36px;
  cursor: pointer;
  box-shadow: 0 6px 0 #8b6914, 0 10px 30px #00000055;
  transition: all 0.1s;
}

.next-level-btn:active { transform: translateY(3px);  box-shadow: 0 3px 0 #8b6914; }

.restart-btn {
  font-family: 'Fredoka One', cursive;
  font-size: 20px;
  color: #a8e6a8;
  background: #ffffff12;
  border: 2px solid #7fff7f44;
  border-radius: 50px;
  padding: 14px 28px;
  cursor: pointer;
  transition: all 0.1s;
}

.restart-btn:active { transform: translateY(2px); }

/* ===== ALL CLEAR SCREEN ===== */
#all-clear-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 24px;
  padding: 40px;
}

.trophy {
  font-size: 110px;
  animation: trophySpin 1.5s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 30px #ffd70088);
}

@keyframes trophySpin {
  from { transform: rotate(-8deg) scale(1); }
  to   { transform: rotate(8deg)  scale(1.08); }
}

.all-clear-title {
  font-family: 'Fredoka One', cursive;
  font-size: 68px;
  color: #ffd700;
  text-shadow: 0 4px 0 #b8860b, 0 10px 30px #00000099;
  animation: winPop 0.5s ease-out;
}

.all-clear-msg {
  color: #a8e6a8;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.7;
}

/* ===== CONFETTI ===== */
.confetti-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  top: -20px;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  to {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0;
  }
}