/* Genel Ayarlar ve Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Ana Renkler */
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;

  /* Arka Plan Renkleri */
  --bg-gradient-start: #ddd6fe;
  --bg-gradient-end: #fce7f3;
  --card-bg: #ffffff;
  --modal-bg: rgba(0, 0, 0, 0.5);

  /* Metin Renkleri */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-white: #ffffff;

  /* Gölgeler */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: var(--text-primary);
}

/* Ana Container */
.game-container {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 900px;
  width: 100%;
  padding: 30px;
  animation: slideInUp 0.5s ease;
}

/* Header Bölümü */
.game-header {
  text-align: center;
  margin-bottom: 30px;
}

.game-header h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

/* Skor Tablosu */
.score-board {
  display: flex;
  justify-content: space-around;
  gap: 15px;
  flex-wrap: wrap;
}

.score-item {
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.score-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.score-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.score-value {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--primary-color);
}

/* İlerleme Çubuğu */
.progress-bar {
  background: #e5e7eb;
  height: 30px;
  border-radius: var(--radius-lg);
  margin-bottom: 25px;
  position: relative;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius-lg);
  width: 0%;
  transition: width 0.5s ease;
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: bold;
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* Flash Kart */
.flash-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-height: 400px;
  margin-bottom: 25px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s;
  cursor: pointer;
}

.flash-card.flipped {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.card-back {
  transform: rotateY(180deg);
  background: linear-gradient(135deg, #fef3c7, #fde68a);
}

/* Kart Ön Yüz (Resim) */
.card-image-container {
  width: 100%;
  max-width: 300px;
  height: 250px;
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card-image:hover {
  transform: scale(1.05);
}

/* İpucu Bölümü */
.hint-section {
  margin-top: 20px;
}

.hint-btn {
  background: linear-gradient(135deg, var(--warning-color), #fbbf24);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.hint-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hint-text {
  display: none;
  margin-left: 15px;
  font-style: italic;
  color: var(--text-secondary);
}

.hint-text.show {
  display: inline-block;
  animation: fadeIn 0.5s ease;
}

/* Kart Arka Yüz */
.word-display {
  text-align: center;
  margin-bottom: 30px;
}

.english-word {
  font-size: 3rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
  text-transform: lowercase;
}

.turkish-word {
  font-size: 1.5rem;
  color: var(--text-secondary);
}

.example-sentence {
  background: white;
  padding: 20px;
  border-radius: var(--radius-md);
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}

.sentence {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-primary);
  text-align: center;
}

.card-info {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.word-category,
.difficulty {
  padding: 5px 15px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
}

.word-category {
  background: #dbeafe;
  color: #1e40af;
}

.difficulty {
  background: #dcfce7;
  color: #166534;
}

/* Cevap Seçenekleri */
.answer-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 25px;
}

.answer-btn {
  background: white;
  border: 2px solid #e5e7eb;
  padding: 15px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
}

.answer-btn:hover:not(:disabled) {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.answer-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.answer-btn.correct {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  border-color: var(--success-color);
  animation: correctAnswer 0.5s ease;
}

.answer-btn.wrong {
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  border-color: var(--error-color);
  animation: wrongAnswer 0.5s ease;
}

.option-number {
  background: var(--primary-color);
  color: white;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.option-text {
  flex: 1;
  text-align: left;
}

/* Kontrol Butonları */
.control-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 25px;
}

.control-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.control-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.control-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Alt Menü */
.bottom-menu {
  display: flex;
  justify-content: space-around;
  gap: 10px;
  flex-wrap: wrap;
}

.menu-btn {
  background: white;
  border: 2px solid #e5e7eb;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.menu-btn:hover {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, #ede9fe, #ddd6fe);
  transform: translateY(-2px);
}

/* Modal Pencereler */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--modal-bg);
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

.modal.show {
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  animation: slideInUp 0.3s ease;
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 2rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.close-modal:hover {
  color: var(--error-color);
}

/* İstatistik Kartları */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin: 25px 0;
}

.stat-card {
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
  padding: 20px;
  border-radius: var(--radius-md);
  text-align: center;
}

.stat-card h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
}

/* Kelime Listeleri */
.wrong-words-list,
.learned-words-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 15px;
}

.word-item {
  background: white;
  border: 2px solid #e5e7eb;
  padding: 10px;
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.word-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.word-item.wrong {
  border-color: var(--error-color);
  background: #fee2e2;
}

.word-item.learned {
  border-color: var(--success-color);
  background: #dcfce7;
}

/* Ayarlar Bölümleri */
.settings-section {
  margin-bottom: 30px;
}

.settings-section h3 {
  color: var(--text-primary);
  margin-bottom: 15px;
  border-bottom: 2px solid #e5e7eb;
  padding-bottom: 10px;
}

.settings-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  margin: 5px;
  transition: all 0.3s ease;
}

.settings-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.settings-btn.danger {
  background: var(--error-color);
}

.setting-item {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 15px;
}

.setting-select {
  padding: 8px 15px;
  border: 2px solid #e5e7eb;
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

/* Başarı ve Hata Mesajları */
.success-message,
.error-message {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
  z-index: 2000;
}

.success-message.show,
.error-message.show {
  display: block;
  animation: bounceIn 0.5s ease;
}

.success-content,
.error-content {
  background: white;
  padding: 30px 50px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.success-icon,
.error-icon {
  font-size: 4rem;
}

.success-text,
.error-text {
  font-size: 1.5rem;
  font-weight: bold;
}

.success-content {
  border: 3px solid var(--success-color);
}

.error-content {
  border: 3px solid var(--error-color);
}

/* Tebrik Modal */
.congrats-content {
  text-align: center;
}

.congrats-content h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.final-stats {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  padding: 25px;
  border-radius: var(--radius-md);
  margin: 25px 0;
}

.final-stat {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 1.2rem;
}

.final-stat span:last-child {
  font-weight: bold;
  color: var(--primary-color);
}

/* Animasyonlar */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes bounceIn {
  0% {
    transform: translate(-50%, -50%) scale(0.3);
    opacity: 0;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.05);
  }
  70% {
    transform: translate(-50%, -50%) scale(0.9);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
}

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

@keyframes correctAnswer {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

@keyframes wrongAnswer {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  75% {
    transform: translateX(10px);
  }
}

/* Responsive Tasarım */
@media (max-width: 768px) {
  .game-container {
    padding: 20px;
  }

  .game-header h1 {
    font-size: 2rem;
  }

  .answer-options {
    grid-template-columns: 1fr;
  }

  .control-buttons {
    flex-direction: column;
  }

  .control-btn {
    width: 100%;
  }

  .english-word {
    font-size: 2.5rem;
  }

  .score-board {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .game-header h1 {
    font-size: 1.5rem;
  }

  .card-image-container {
    height: 200px;
  }

  .english-word {
    font-size: 2rem;
  }

  .turkish-word {
    font-size: 1.2rem;
  }

  .bottom-menu {
    flex-direction: column;
  }

  .menu-btn {
    width: 100%;
  }
}