/* ============================================================
   Save the Baby Dragon — styles
   Bright, child-friendly cartoon look with soft rounded shapes.
   ============================================================ */

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

:root {
  --sky-top: #7ec8ff;
  --sky-bottom: #c8f0ff;
  --sun: #fff3b0;
  --pink: #ff7eb6;
  --pink-dark: #f74f95;
  --green: #5fd06a;
  --green-dark: #34a93f;
  --text: #2b2b5e;
}

html,
body {
  height: 100%;
  font-family: "Baloo 2", "Comic Sans MS", system-ui, sans-serif;
  overflow: hidden;
  color: var(--text);
}

/* ---- Game stage: a centered responsive box that fills the screen ---- */
#game {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(to bottom, var(--sky-top) 0%, var(--sky-bottom) 100%);
  user-select: none;
}

/* A warm sun glow in the corner */
#game::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--sun) 0%, rgba(255, 243, 176, 0) 70%);
  pointer-events: none;
}

/* ============================================================
   Clouds — gentle floating animation
   ============================================================ */
#clouds {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cloud {
  position: absolute;
  background: #ffffff;
  border-radius: 50%;
  opacity: 0.9;
  filter: drop-shadow(0 8px 0 rgba(255, 255, 255, 0.6));
}

/* Puffy cloud built from pseudo-elements */
.cloud::before,
.cloud::after {
  content: "";
  position: absolute;
  background: #ffffff;
  border-radius: 50%;
}
.cloud::before {
  width: 60%;
  height: 80%;
  top: -30%;
  left: 12%;
}
.cloud::after {
  width: 50%;
  height: 70%;
  top: -18%;
  right: 10%;
}

/* Slow drift across the sky + a soft up/down bob */
@keyframes drift {
  from { transform: translateX(-30vw); }
  to   { transform: translateX(120vw); }
}
@keyframes bob {
  0%, 100% { margin-top: 0; }
  50%      { margin-top: 14px; }
}

/* ============================================================
   HUD — score and lives
   ============================================================ */
#hud {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  z-index: 20;
}

.hud-pill {
  background: rgba(255, 255, 255, 0.9);
  border: 3px solid #ffffff;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: clamp(16px, 2.4vw, 24px);
  font-weight: 800;
  box-shadow: 0 4px 0 rgba(43, 43, 94, 0.15);
  white-space: nowrap;
}

/* ============================================================
   Bonus banner ("Dragon Master!" etc.)
   ============================================================ */
#banner {
  position: absolute;
  top: 22%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 25;
  background: var(--pink);
  color: #fff;
  font-size: clamp(20px, 4vw, 40px);
  font-weight: 800;
  padding: 12px 28px;
  border-radius: 999px;
  border: 4px solid #fff;
  box-shadow: 0 8px 0 rgba(247, 79, 149, 0.4);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.15);
  animation: pop-banner 2s ease forwards;
  pointer-events: none;
}

@keyframes pop-banner {
  0%   { transform: translateX(-50%) scale(0.4); opacity: 0; }
  15%  { transform: translateX(-50%) scale(1.1); opacity: 1; }
  25%  { transform: translateX(-50%) scale(1); }
  80%  { opacity: 1; }
  100% { transform: translateX(-50%) scale(1) translateY(-20px); opacity: 0; }
}

/* ============================================================
   Playfield + game objects (dragon, gems, birds, sparkles)
   ============================================================ */
#playfield {
  position: absolute;
  inset: 0;
  z-index: 10;
}

/* ---- The dragon ---- */
#dragon {
  position: absolute;
  width: 90px;
  height: 90px;
  font-size: 72px;
  line-height: 1;
  text-align: center;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 8px 6px rgba(0, 0, 0, 0.18));
  transition: none;
  animation: flap 0.5s ease-in-out infinite;
  will-change: left, top;
}

/* Gentle wing-flap / hover bobbing for the dragon */
@keyframes flap {
  0%, 100% { margin-top: 0; }
  50%      { margin-top: -10px; }
}

/* ---- Falling gems ---- */
.gem {
  position: absolute;
  font-size: 40px;
  line-height: 1;
  text-align: center;
  filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.15));
  animation: spin 1.6s linear infinite;
  will-change: top;
}

.gem.golden {
  font-size: 46px;
  filter: drop-shadow(0 0 10px gold) drop-shadow(0 4px 3px rgba(0, 0, 0, 0.2));
}

@keyframes spin {
  0%, 100% { transform: rotate(-12deg) scale(1); }
  50%      { transform: rotate(12deg) scale(1.08); }
}

/* ---- Birds flying across ---- */
.bird {
  position: absolute;
  font-size: 44px;
  line-height: 1;
  text-align: center;
  filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.18));
  animation: bird-bob 0.4s ease-in-out infinite;
  will-change: left;
}

.bird.flip {
  transform: scaleX(-1);
}

@keyframes bird-bob {
  0%, 100% { margin-top: 0; }
  50%      { margin-top: -8px; }
}

/* ---- Sparkle particles when collecting a gem ---- */
.sparkle {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: gold;
  pointer-events: none;
  z-index: 15;
  animation: sparkle-fly 0.6s ease-out forwards;
}

@keyframes sparkle-fly {
  0%   { transform: translate(0, 0) scale(1); opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) scale(0); opacity: 0; }
}

/* Quick flash when the dragon is hit */
.dragon-hurt {
  animation: flap 0.5s ease-in-out infinite, hurt-flash 0.5s linear 3 !important;
}

@keyframes hurt-flash {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.25; }
}

/* ============================================================
   Screens (welcome + game over)
   ============================================================ */
.screen {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.95);
  border: 6px solid #fff;
  border-radius: 32px;
  padding: 36px 32px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 14px 0 rgba(43, 43, 94, 0.15), 0 20px 40px rgba(0, 0, 0, 0.15);
  animation: card-in 0.4s ease;
}

@keyframes card-in {
  from { transform: scale(0.85) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}

.title-dragon {
  font-size: 80px;
  line-height: 1;
  animation: bob 2s ease-in-out infinite;
}

.card h1 {
  font-size: clamp(28px, 6vw, 44px);
  color: var(--pink-dark);
  margin: 6px 0 12px;
  text-shadow: 0 3px 0 rgba(247, 79, 149, 0.18);
}

.card p {
  font-size: clamp(15px, 2.6vw, 19px);
  line-height: 1.4;
  margin-bottom: 16px;
}

.card .final {
  font-size: clamp(20px, 4vw, 28px);
  font-weight: 800;
  color: var(--text);
}

#final-message {
  font-weight: 700;
  color: var(--pink-dark);
}

.how-to {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: #eef7ff;
  border-radius: 18px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: clamp(13px, 2.4vw, 17px);
  font-weight: 600;
}

/* ---- Soft rounded buttons ---- */
.btn {
  font-family: inherit;
  font-size: clamp(18px, 3.4vw, 24px);
  font-weight: 800;
  color: #fff;
  background: var(--green);
  border: none;
  border-radius: 999px;
  padding: 14px 40px;
  cursor: pointer;
  box-shadow: 0 6px 0 var(--green-dark);
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.15s ease;
}

.btn:hover {
  background: #6ee07a;
}

.btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 var(--green-dark);
}

/* ============================================================
   Celebration — confetti and fireworks at score 100
   ============================================================ */
.celebration-overlay {
  position: absolute;
  inset: 0;
  z-index: 35;
  pointer-events: none;
  overflow: hidden;
}

/* Confetti: small falling colored rectangles */
.confetti {
  position: absolute;
  top: -10px;
  width: 8px;
  height: 14px;
  border-radius: 2px;
  opacity: 0.95;
  animation: confetti-fall 2.5s ease-in forwards;
}

@keyframes confetti-fall {
  0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0.3; }
}

/* Firework burst: expanding circles */
.firework {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  animation: firework-pop 1.2s ease-out forwards;
}

@keyframes firework-pop {
  0%   { transform: scale(0); opacity: 1; }
  50%  { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(0); opacity: 0; }
}

/* Firework shell: the main burst circle */
.firework-shell {
  position: absolute;
  border-radius: 50%;
  animation: shell-burst 0.9s ease-out forwards;
  pointer-events: none;
}

@keyframes shell-burst {
  0%   { transform: scale(0); opacity: 1; }
  60%  { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* Big win banner that appears during celebration */
.win-banner {
  position: absolute;
  top: 18%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  background: linear-gradient(135deg, #ffd700, #ff7eb6);
  color: #fff;
  font-size: clamp(24px, 6vw, 56px);
  font-weight: 800;
  padding: 14px 36px;
  border-radius: 999px;
  border: 5px solid #fff;
  box-shadow: 0 10px 0 rgba(247, 79, 149, 0.4);
  text-shadow: 0 3px 0 rgba(0, 0, 0, 0.15);
  animation: win-pop 2.5s ease forwards;
  pointer-events: none;
  white-space: nowrap;
}

@keyframes win-pop {
  0%   { transform: translateX(-50%) scale(0.3); opacity: 0; }
  15%  { transform: translateX(-50%) scale(1.15); opacity: 1; }
  25%  { transform: translateX(-50%) scale(1); }
  80%  { opacity: 1; }
  100% { transform: translateX(-50%) scale(1) translateY(-18px); opacity: 0; }
}

/* Utility */
.hidden {
  display: none !important;
}