euler-path-explorer/css/optimization.css at main · aannoo/euler-path-explorer · GitHub

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/* EULER - CSS Performance Optimizations */

/* This file contains performance-focused CSS enhancements
   to improve rendering, animation, and interaction performance */

/* ========== Hardware Acceleration ========== */

/* Apply to elements that need smooth animations */
.hardware-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* For elements that have significant transitions/transforms */
.transform-optimized {
  will-change: transform;
}

/* For opacity animations (like fade in/out) */
.opacity-optimized {
  will-change: opacity;
}

/* For elements that change multiple properties */
.complex-optimized {
  will-change: transform, opacity;
}

/* ========== Specific Component Optimizations ========== */

/* Optimize button hover/active states */
.btn:hover,
.btn:active {
  transform: translateZ(0) translateY(2px);
}

/* Optimize sidebar transition */
.sidebar {
  transform: translateZ(0);
  will-change: width;
}

/* Optimize euler branding transitions */
.title-area {
  transform: translateZ(0);
  will-change: transform, opacity;
}

/* Optimize dropdown/tooltip animations */
.dropdown-content,
.tooltip-content {
  transform: translateZ(0);
  will-change: opacity, transform;
}

/* Optimize hint box animations */
.hint-box:not(.hidden) {
  transform: translateZ(0) translateY(0);
  will-change: opacity, transform;
}

/* ========== Animation Performance ========== */

/* Use opacity and transform instead of other properties */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes pulseHighlight {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
}

/* ========== Selector Optimization ========== */

/* Avoid:
   - Deep nesting (more than 3 levels)
   - Universal selectors (*) when possible
   - Excessive attribute selectors
   - Inefficient selectors like :nth-child or :not
   - Over-qualifying selectors
*/

/* Example of optimized selectors:
   Instead of: body .main-content .widget:nth-child(odd) div > span
   Use: .widget-odd-text
*/

/* Reduce selector complexity for commonly accessed elements */
.btn {
  /* Target directly instead of .button-container .btn */
}

.form-input {
  /* Target directly instead of .form-group .input-container .form-input */
}

/* ========== Paint/Layout Optimization ========== */

/* Use opacity and transform for animations as they don't trigger layout */
.notification-banner.active {
  transform: translateY(0);
}

/* Use fixed size containers to minimize layout recalculation */
.input-container,
.button-container,
.form-group {
  box-sizing: border-box;
}

/* Use contain property for optimization where appropriate */
.sidebar-panel,
.result-panel,
.graph-container {
  contain: content;
}

/* ========== Responsive Performance ========== */

/* Provide resolution-appropriate assets */
@media (max-width: 576px) {
  /* Simpler animations for mobile */
  .complex-animation {
    animation: none;
  }

  /* Disable unnecessary effects */
  .desktop-only-effect {
    transform: none;
    will-change: auto;
  }
}

/* ========== Transition Optimization ========== */

/* Optimize transition properties to only animate specific properties */
.btn {
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

/* Replace all 'transition: all' with specific properties */
.form-input:focus {
  transition: background-color var(--transition-fast), border-left-width var(--transition-normal);
}