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

body {
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  background: linear-gradient(135deg, #fde2e4 0%, #e0f4ff 100%);
  color: #333;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

h1 {
  text-align: center;
  color: #d97b7b;
  font-size: 28px;
  padding: 10px;
}

h2 {
  font-size: 16px;
  color: #666;
  margin-bottom: 12px;
}

.panel {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.character-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.character-button {
  flex: 1;
  min-width: 80px;
  padding: 12px;
  font-size: 16px;
  border: 2px solid #e0e0e0;
  background: #ffffff;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}

.character-button:hover {
  background: #fef3f3;
  border-color: #f5b7b7;
}

.character-button.selected {
  background: #ffe0e0;
  border-color: #d97b7b;
  color: #b55a5a;
  font-weight: bold;
}

.character-stage {
  text-align: center;
  background: linear-gradient(180deg, #fff9e6 0%, #ffe8d1 100%);
}

#character-image {
  width: 200px;
  height: 200px;
  display: block;
  margin: 0 auto;
}

#character-message {
  margin-top: 10px;
  font-size: 16px;
  color: #777;
  min-height: 24px;
}

#timer-display {
  font-size: 56px;
  font-weight: bold;
  text-align: center;
  font-family: "Menlo", "Courier New", monospace;
  color: #444;
  padding: 16px 0;
  letter-spacing: 2px;
}

.timer-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.timer-buttons button {
  flex: 1;
  min-width: 100px;
  padding: 14px;
  font-size: 16px;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}

.timer-buttons button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.primary {
  background: #6fb583;
  color: #ffffff;
}

.primary:hover:not(:disabled) {
  background: #5ca070;
}

.secondary {
  background: #e88a8a;
  color: #ffffff;
}

.secondary:hover:not(:disabled) {
  background: #d07272;
}

.tertiary {
  background: #e0e0e0;
  color: #555;
}

.tertiary:hover:not(:disabled) {
  background: #c8c8c8;
}

@media (max-width: 480px) {
  #timer-display {
    font-size: 40px;
  }

  h1 {
    font-size: 22px;
  }
}