/**
 * Simyo动画效果
 * 定义所有动画和过渡效果
 */

/* 淡入动画 */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* 滑入动画 */
@keyframes slideIn {
    from { 
        opacity: 0; 
        transform: translateX(30px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

/* 脉冲 / 弹跳：与原有效果一致 */
@keyframes subtle-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

/* 入场动效 */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition:
        opacity var(--transition-base, 240ms ease),
        transform var(--transition-base, 240ms ease);
}

.reveal.show {
    opacity: 1;
    transform: translateY(0);
}

/* 步骤内容进入 */
@keyframes section-enter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 降低动效：尊重用户的减少动态偏好 */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        transition: none;
        transform: none;
        opacity: 1;
    }
    
    .card,
    .help-btn,
    .github-btn,
    .btn {
        transition: none !important;
    }
    
    @keyframes fadeIn {
        from, to { 
            opacity: 1; 
            transform: none; 
        }
    }
    
    @keyframes slideIn {
        from, to { 
            opacity: 1; 
            transform: none; 
        }
    }
    
    @keyframes subtle-pulse {
        from, to { 
            transform: none; 
        }
    }
    
    @keyframes bounce {
        from, to { 
            transform: none; 
        }
    }
}