/* 
 * components.css - UI组件样式
 * 包含：按钮、输入框、卡片、弹窗等独立组件
 */

/* ========== 导航链接 ========== */
.nav-link {
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  font-weight: 500;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ========== 等级显示 ========== */
.level {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
  margin-bottom: var(--spacing-xs);
}

.digits-tip {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-style: italic;
  font-weight: 400;
}

/* ========== 通用按钮 ========== */
.btn {
  padding: 15px 40px;
  font-size: 1.2rem;
  font-weight: 600;
  background: linear-gradient(145deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  border-radius: var(--radius-round);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-sm);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn:active {
  transform: translateY(-1px);
}

.submit-bottom {
  width: 100%;
  max-width: 300px;
  margin-top: var(--spacing-md);
}

/* ========== 输入框 ========== */
#userInput {
  width: 100%;
  padding: 15px;
  font-size: 1.5rem;
  border: 2px solid var(--primary-color);
  border-radius: var(--radius-md);
  text-align: center;
  font-family: 'Courier New', monospace;
  letter-spacing: 2px;
}

#userInput:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* ========== 数字显示区 ========== */
.number {
  font-family: 'Courier New', monospace;
  font-weight: bold;
  color: var(--text-primary);
  padding: var(--spacing-lg);
  background: rgba(102, 126, 234, 0.1);
  border-radius: var(--radius-lg);
  margin: var(--spacing-md) 0;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity var(--transition-slow);
  word-break: break-all;
  letter-spacing: 2px;
}

.number-row {
  display: block;
  margin: var(--spacing-xs) 0;
  font-size: 2.5rem;
}

.number.hide {
  opacity: 0;
}

/* 不同长度的字体大小 */
.number-size-default .number-row { font-size: 2.5rem; }
.number-size-20 .number-row { font-size: 2.2rem; }
.number-size-40 .number-row { font-size: 1.8rem; }
.number-size-60 .number-row { font-size: 1.5rem; }
.number-size-80 .number-row { font-size: 1.2rem; }
.number-size-100 .number-row { font-size: 1rem; }

/* ========== 倒计时器 ========== */
.timer-area {
  width: 100%;
  margin-bottom: var(--spacing-lg);
  display: none;
  flex-direction: column;
  align-items: center;
}

.timer-label {
  font-size: 1.3rem;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 15px;
}

.progress-bar-bg {
  width: 100%;
  max-width: 400px;
  height: 10px;
  background-color: #e0e0e0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: width var(--transition-fast) linear;
  border-radius: var(--radius-sm);
}

/* ========== 虚拟键盘 ========== */
.virtual-keyboard {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
  width: 100%;
  max-width: 300px;
}

.keyboard-row {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.keyboard-key {
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(145deg, #f0f0f0, #e0e0e0);
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.keyboard-key:hover {
  background: linear-gradient(145deg, var(--primary-color), var(--secondary-color));
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.keyboard-key.key-pressed,
.keyboard-key:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.keyboard-disabled .keyboard-key {
  opacity: 0.5;
}

/* ========== 游戏说明 ========== */
.game-desc {
  background-color: rgba(102, 126, 234, 0.05);
  border-left: 4px solid var(--primary-color);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  border-radius: var(--radius-md);
  text-align: left;
  max-width: 500px;
}

#gameDescText {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
}

/* ========== 消息提示 ========== */
.message {
  display: none;
  padding: 15px;
  margin: var(--spacing-md) 0;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 500;
}

.message.info {
  background-color: #e3f2fd;
  color: var(--info-color);
  border: 1px solid #90caf9;
}

.message.success {
  background-color: #e8f5e9;
  color: var(--success-color);
  border: 1px solid #81c784;
}

.message.error {
  background-color: #ffebee;
  color: var(--error-color);
  border: 1px solid #ef9a9a;
}

/* ========== 页脚链接 ========== */
.footer-links a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-links a:hover {
  color: white;
  text-decoration: underline;
}