:root {
  --bg-color: #0d0f14;
  --text-color: #eeeeee;
  --accent-color: #00ff88;
  --error-color: #ff4444;
  --panel-color: #1a1d24;
  --border-color: #333333;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  text-align: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  max-width: 900px;
  width: 100%;
}

.title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 30px;
  color: var(--text-color);
  text-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.timer {
  font-size: 36px;
  margin-bottom: 30px;
  color: var(--accent-color);
  font-weight: bold;
  text-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.timer-label {
  color: #888;
  font-size: 28px;
  margin-right: 10px;
}

.timer-value {
  font-family: 'Courier New', monospace;
  font-size: 48px;
}

.stats-panel {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.stat-item {
  background: var(--panel-color);
  padding: 15px 25px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  min-width: 120px;
}

.stat-label {
  display: block;
  font-size: 14px;
  color: #888;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-value {
  display: block;
  font-size: 28px;
  font-weight: bold;
  color: var(--accent-color);
  font-family: 'Courier New', monospace;
}

.error-value {
  color: var(--error-color);
}

.word-box {
  font-size: 32px;
  margin: 30px auto;
  padding: 30px 40px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  display: inline-block;
  background: var(--panel-color);
  font-family: 'Courier New', monospace;
  letter-spacing: 2px;
  min-width: 300px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.word-box span {
  display: inline-block;
  transition: color 0.1s ease;
}

.word-box .correct {
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.word-box .wrong {
  color: var(--error-color);
  text-shadow: 0 0 10px rgba(255, 68, 68, 0.5);
}

.input-container {
  margin: 30px 0;
}

#input {
  font-size: 24px;
  padding: 15px 25px;
  width: 100%;
  max-width: 500px;
  background: var(--panel-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-color);
  font-family: 'Courier New', monospace;
  text-align: center;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

#input::placeholder {
  color: #666;
}

.controls {
  margin-top: 30px;
}

.btn {
  padding: 12px 30px;
  font-size: 16px;
  font-weight: bold;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--accent-color);
  color: #0d0f14;
}

.btn-primary:hover {
  background: #00cc6a;
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--panel-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  background: #252932;
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.results-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13, 15, 20, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

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

.results-panel h2 {
  font-size: 42px;
  margin-bottom: 40px;
  color: var(--text-color);
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.result-item {
  background: var(--panel-color);
  padding: 30px 40px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  min-width: 150px;
}

.result-value {
  display: block;
  font-size: 48px;
  font-weight: bold;
  color: var(--accent-color);
  font-family: 'Courier New', monospace;
  margin-bottom: 10px;
}

.result-label {
  display: block;
  font-size: 16px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-buttons {
  display: flex;
  gap: 30px;
  margin-top: 50px;
}

.result-buttons .btn {
  min-width: 220px;
  padding: 18px 40px;
  font-size: 18px;
  border-radius: 10px;
}

@media (max-width: 768px) {
  .title {
    font-size: 32px;
  }

  .stats-panel {
    gap: 15px;
  }

  .stat-item {
    min-width: 100px;
    padding: 10px 15px;
  }

  .stat-value {
    font-size: 20px;
  }

  .word-box {
    font-size: 24px;
    padding: 20px;
    min-width: 250px;
  }

  #input {
    font-size: 18px;
    padding: 12px 20px;
  }

  .result-stats {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .result-item {
    padding: 20px 30px;
  }

  .result-value {
    font-size: 36px;
  }

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

  .result-buttons .btn {
    width: 100%;
  }
}