:root {
  --bg-gradient: linear-gradient(180deg, #ff7e5f 0%, #feb47b 45%, #76b2c6 75%, #2a5298 100%);
  --primary-color: #ff3366; /* Hibiscus Pink */
  --secondary-color: #00ffd2; /* Ocean Turquoise */
  --accent-color: #ffd700; /* Sunset Gold */
  --text-color: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glow-shadow: 0 0 15px var(--secondary-color);
  --font-family: 'Fredoka', 'Outfit', sans-serif;
}

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

body {
  font-family: var(--font-family);
  background: var(--bg-gradient);
  color: var(--text-color);
  height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  position: relative;
  width: 100%;
  max-width: 850px; /* Slightly wider for beautiful tropical layout */
  height: 600px;
  background: var(--glass-bg);
  backdrop-filter: blur(25px);
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  z-index: 1;
}

/* Background Tropical Elements */
.stars {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.tropical-element {
  position: absolute;
  top: 100vh; /* Start offscreen below the viewport */
  pointer-events: none;
  opacity: 0;
  animation: float-up 20s linear infinite;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.15));
}

@keyframes float-up {
  0% {
    transform: translateY(10vh) rotate(0deg) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-120vh) rotate(360deg) translateX(80px);
    opacity: 0;
  }
}

/* UI Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.2rem;
  font-weight: 600;
}

.score-badge, .streak-badge, .level-badge, .lives-badge {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.score-badge span, .level-badge span {
  color: var(--secondary-color);
  text-shadow: 0 0 5px var(--secondary-color);
}

.streak-badge span {
  color: var(--accent-color);
  text-shadow: 0 0 5px var(--accent-color);
}

.lives-badge span {
  color: var(--primary-color);
  text-shadow: 0 0 5px var(--primary-color);
}

/* Game Area */
.game-area {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
}

.question-card {
  background: rgba(255, 255, 255, 0.15); /* More visible glass card */
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 24px;
  padding: 2.5rem;
  text-align: center;
  width: 100%;
  max-width: 680px; /* Increased width to accommodate blocks */
  box-shadow: inset 0 0 30px rgba(255, 255, 255, 0.1), 0 10px 30px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
}

.question-card:hover {
  transform: translateY(-5px);
}

.question-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  flex-grow: 1;
}

.question {
  font-size: 4.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(180deg, #ffffff 30%, #ffd700 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.prompt {
  font-size: 1.2rem;
  color: #f0f0f0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.hint-btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.5rem 1rem;
  color: var(--text-color);
  font-family: var(--font-family);
  font-size: 0.9rem;
  cursor: pointer;
  margin-top: 1rem;
  transition: all 0.2s ease;
}

.hint-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(255, 255, 0, 0.2);
}

.hint-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-start;
  align-items: center;
  min-width: 100px; /* Ensure space for blocks */
  max-height: 220px;
  overflow-y: auto;
  padding-right: 35px; /* Added space for hover tooltips on the right */
}

/* Custom scrollbar for hint container */
.hint-container::-webkit-scrollbar {
  width: 6px;
}
.hint-container::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}
.hint-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}
.hint-container::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.hint-container.hidden {
  display: none;
}

.block-row {
  display: flex;
  gap: 6px;
  padding-right: 30px; /* Space for skip-counting tooltip inside the overflow boundary */
}

.block {
  font-size: 1.6rem; /* Good size for readable emojis */
  line-height: 1;
  user-select: none;
  transition: transform 0.2s ease;
  cursor: default;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.block:hover {
  transform: scale(1.3) rotate(10deg);
}

/* Skip-counting Hover Tooltip */
.block.skip-count {
  position: relative;
  cursor: pointer;
}

.block.skip-count::after {
  content: attr(data-count);
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%) scale(0.8);
  margin-left: 8px;
  background: var(--accent-color);
  color: #000;
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.block.skip-count:hover::after {
  opacity: 1;
  transform: translateY(-50%) scale(1);
}

/* Answer Input Layout */
.input-container {
  display: flex;
  gap: 1rem;
  width: 100%;
  max-width: 450px;
  justify-content: center;
  align-items: center;
}

.answer-input {
  flex-grow: 1;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid var(--glass-border);
  border-radius: 16px;
  padding: 1rem 1.5rem;
  font-family: var(--font-family);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
  outline: none;
  transition: all 0.3s ease;
  width: 120px;
}

.answer-input:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 15px rgba(0, 255, 210, 0.3);
  background: rgba(255, 255, 255, 0.15);
}

/* Hide spin buttons in input */
.answer-input::-webkit-outer-spin-button,
.answer-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.answer-input[type=number] {
  -moz-appearance: textfield;
}

.submit-btn {
  background: linear-gradient(135deg, var(--primary-color), #ff527b);
  border: none;
  border-radius: 16px;
  padding: 1rem 2rem;
  font-family: var(--font-family);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 15px rgba(255, 51, 102, 0.3);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 51, 102, 0.5);
}

.submit-btn:active {
  transform: translateY(0);
}

.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.answer-input.correct {
  border-color: #00e676;
  background: rgba(0, 230, 118, 0.15);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.4);
  animation: pulse 0.5s ease;
}

.answer-input.wrong {
  border-color: #ff1744;
  background: rgba(255, 23, 68, 0.15);
  box-shadow: 0 0 20px rgba(255, 23, 68, 0.4);
  animation: shake 0.5s ease;
}

/* Animations */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

/* Progress Bar */
.progress-container {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
  margin-top: auto;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
  box-shadow: 0 0 10px var(--secondary-color);
  transition: width 0.3s ease;
}

/* Responsive */
@media (max-width: 600px) {
  .container {
    height: 100vh;
    border-radius: 0;
    padding: 1rem;
  }
  .question {
    font-size: 3rem;
  }
  .options-grid {
    gap: 1rem;
  }
}