/* ========================================
   DINOSAUR QUIZ GAME — STYLES
   ======================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  --clr-bg: #1a1a2e;
  --clr-bg-accent: #16213e;
  --clr-card: #0f3460;
  --clr-card-light: #1a4a7a;
  --clr-primary: #e94560;
  --clr-primary-hover: #ff6b81;
  --clr-secondary: #53d8a8;
  --clr-secondary-hover: #7aecc4;
  --clr-accent: #f5c542;
  --clr-text: #edf2f4;
  --clr-text-muted: #a8b2d1;
  --clr-correct: #2ecc71;
  --clr-correct-bg: rgba(46, 204, 113, 0.15);
  --clr-incorrect: #e74c3c;
  --clr-incorrect-bg: rgba(231, 76, 60, 0.15);

  --ff-heading: 'Fredoka One', cursive;
  --ff-body: 'Nunito', sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-btn: 0 4px 15px rgba(233, 69, 96, 0.4);
  --shadow-btn-secondary: 0 4px 15px rgba(83, 216, 168, 0.3);

  --transition: 0.3s ease;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(15, 52, 96, 0.6) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(233, 69, 96, 0.1) 0%, transparent 50%);
}

/* ---------- Game Wrapper ---------- */
.game-wrapper {
  position: relative;
  width: 100%;
  max-width: 640px;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

/* ---------- Decorative Elements ---------- */
.deco {
  position: fixed;
  font-size: 2.5rem;
  opacity: 0.15;
  pointer-events: none;
  animation: float 6s ease-in-out infinite;
  z-index: 0;
}

.deco-leaf-1 { top: 5%; left: 5%; animation-delay: 0s; }
.deco-leaf-2 { top: 10%; right: 8%; animation-delay: 1.5s; }
.deco-leaf-3 { bottom: 10%; left: 8%; animation-delay: 3s; }
.deco-leaf-4 { bottom: 5%; right: 5%; animation-delay: 4.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(5deg); }
}

/* ---------- Screens ---------- */
.screen {
  display: none;
  width: 100%;
  animation: fadeIn 0.4s ease;
}

.screen.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Card (shared) ---------- */
.card {
  background: var(--clr-card);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  width: 100%;
  box-shadow: var(--shadow-card);
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ---------- START SCREEN ---------- */
.card-start {
  text-align: center;
}

.logo-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
}

.logo-emoji {
  font-size: 3rem;
  animation: bounce 2s ease infinite;
}

.logo-emoji:last-child {
  animation-delay: 0.3s;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.game-title {
  font-family: var(--ff-heading);
  font-size: 3rem;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

.subtitle {
  color: var(--clr-text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ff-body);
  font-weight: 800;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-md);
  padding: 14px 32px;
  cursor: pointer;
  transition: all var(--transition);
  outline: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), #c0392b);
  color: #fff;
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--clr-primary-hover), var(--clr-primary));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.5);
}

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

.btn-secondary {
  background: linear-gradient(135deg, var(--clr-secondary), #27ae60);
  color: #1a1a2e;
  box-shadow: var(--shadow-btn-secondary);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--clr-secondary-hover), var(--clr-secondary));
  transform: translateY(-2px);
}

.btn-lg {
  font-size: 1.2rem;
  padding: 18px 48px;
}

.btn-icon {
  font-size: 1.2em;
}

/* ---------- CATEGORY SCREEN ---------- */
.screen-title {
  font-family: var(--ff-heading);
  font-size: 2rem;
  text-align: center;
  margin-bottom: 4px;
  color: var(--clr-accent);
}

.screen-subtitle {
  text-align: center;
  color: var(--clr-text-muted);
  margin-bottom: 24px;
  font-weight: 600;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.category-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--clr-card-light);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 20px 12px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--ff-body);
  color: var(--clr-text);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.category-btn.category-all {
  grid-column: 1 / -1;
  flex-direction: row;
  gap: 10px;
  padding: 22px 20px;
  font-size: 1.1rem;
}

.category-btn:hover {
  border-color: var(--clr-primary);
  background: rgba(233, 69, 96, 0.1);
  transform: translateY(-3px);
}

.category-btn:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 2px;
}

.category-emoji {
  font-size: 2rem;
}

/* ---------- GAME SCREEN ---------- */
.card-game {
  padding: 24px 24px 32px;
}

/* HUD */
.hud {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hud-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--clr-text-muted);
  font-weight: 700;
}

.hud-value {
  font-family: var(--ff-heading);
  font-size: 1.4rem;
  color: var(--clr-accent);
}

/* Progress bar */
.progress-bar-track {
  width: 100%;
  height: 8px;
  background: var(--clr-bg);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 20px;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  border-radius: 99px;
  transition: width 0.5s ease;
}

/* Question image */
.question-image-wrapper {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
  background: var(--clr-bg-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 255, 255, 0.06);
}

.question-image {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
}

/* Question text */
.question-text {
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 18px;
  min-height: 1.6em;
  color: var(--clr-text);
}

/* Choices */
.choices-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.choices-container.choices-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.choice-btn {
  background: var(--clr-card-light);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  font-family: var(--ff-body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-text);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  word-break: break-word;
}

.choice-btn:hover:not(:disabled) {
  border-color: var(--clr-primary);
  background: rgba(233, 69, 96, 0.1);
  transform: scale(1.03);
}

.choice-btn:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 2px;
}

.choice-btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.choice-btn.correct {
  border-color: var(--clr-correct);
  background: var(--clr-correct-bg);
}

.choice-btn.incorrect {
  border-color: var(--clr-incorrect);
  background: var(--clr-incorrect-bg);
}

/* Feedback */
.feedback {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.05rem;
  animation: popIn 0.3s ease;
}

.feedback.hidden {
  display: none;
}

.feedback.correct {
  background: var(--clr-correct-bg);
  color: var(--clr-correct);
}

.feedback.incorrect {
  background: var(--clr-incorrect-bg);
  color: var(--clr-incorrect);
}

.feedback-icon {
  font-size: 1.5rem;
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

/* ---------- END SCREEN ---------- */
.card-end {
  text-align: center;
}

.end-score-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin: 16px 0 8px;
}

.end-score {
  font-family: var(--ff-heading);
  font-size: 4.5rem;
  color: var(--clr-accent);
  line-height: 1;
}

.end-score-divider {
  font-family: var(--ff-heading);
  font-size: 2.5rem;
  color: var(--clr-text-muted);
}

.end-score-total {
  font-family: var(--ff-heading);
  font-size: 2.5rem;
  color: var(--clr-text-muted);
}

.end-message {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
}

/* Results list */
.results-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}

.result-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  background: var(--clr-card-light);
  font-size: 0.7rem;
  font-weight: 700;
}

.result-item img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
}

.result-item .result-icon {
  font-size: 1rem;
}

.result-item.correct {
  border: 1px solid var(--clr-correct);
}

.result-item.incorrect {
  border: 1px solid var(--clr-incorrect);
}

.end-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 520px) {
  .card {
    padding: 28px 18px;
    border-radius: var(--radius-lg);
  }

  .game-title {
    font-size: 2.2rem;
  }

  .screen-title {
    font-size: 1.6rem;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .choices-container {
    grid-template-columns: 1fr;
  }

  .choices-container.choices-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .results-list {
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
  }

  .end-score {
    font-size: 3.5rem;
  }

  .btn-lg {
    font-size: 1rem;
    padding: 14px 32px;
  }
}

@media (min-width: 521px) and (max-width: 768px) {
  .game-title {
    font-size: 2.6rem;
  }
}