Keep/keep-notes/components/masonry-grid.css

/**
 * Masonry Grid Styles
 *
 * Styles for responsive masonry layout similar to Google Keep
 * Handles note sizes, drag states, and responsive breakpoints
 */

/* Masonry Container */
.masonry-container {
  width: 100%;
  padding: 0 16px 24px 16px;
}

/* Grid containers for pinned and others sections */
.masonry-container > div > div[ref*="GridRef"] {
  width: 100%;
  min-height: 100px;
  position: relative;
}

/* Masonry Item Base Styles - Width is managed by Muuri */
.masonry-item {
  display: block;
  position: absolute;
  z-index: 1;
  box-sizing: border-box;
  padding: 8px 0;
  width: auto; /* Width will be set by JS based on container */
}

/* Masonry Item Content Wrapper */
.masonry-item-content {
  position: relative;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

/* Ensure proper box-sizing for all elements in the grid */
.masonry-item *,
.masonry-item-content * {
  box-sizing: border-box;
}

/* Note Card - Base styles */
.note-card {
  width: 100% !important; /* Force full width within grid cell */
  min-width: 0; /* Prevent overflow */
  height: auto !important; /* Let content determine height like Google Keep */
  max-height: none !important; /* No max-height restriction */
}

/* Note Size Styles - Desktop Default */
.note-card[data-size="small"] {
  min-height: 150px !important;
  height: auto !important;
}

.note-card[data-size="medium"] {
  min-height: 200px !important;
  height: auto !important;
}

.note-card[data-size="large"] {
  min-height: 300px !important;
  height: auto !important;
}

/* Drag State Styles - Improved for Google Keep-like behavior */
.masonry-item.muuri-item-dragging {
  z-index: 1000;
  opacity: 0.6;
  transition: none; /* No transition during drag for better performance */
}

.masonry-item.muuri-item-dragging .note-card {
  transform: scale(1.05) rotate(2deg);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
  transition: none; /* No transition during drag */
}

.masonry-item.muuri-item-releasing {
  z-index: 2;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.masonry-item.muuri-item-releasing .note-card {
  transform: scale(1) rotate(0deg);
  box-shadow: none;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.masonry-item.muuri-item-hidden {
  z-index: 0;
  opacity: 0;
  pointer-events: none;
}

/* Drag Placeholder - More visible and styled like Google Keep */
.muuri-item-placeholder {
  opacity: 0.3;
  background: rgba(100, 100, 255, 0.05);
  border: 2px dashed rgba(100, 100, 255, 0.3);
  border-radius: 12px;
  transition: all 0.2s ease-out;
  min-height: 150px !important;
  min-width: 100px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.muuri-item-placeholder::before {
  content: '';
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(100, 100, 255, 0.1);
  border: 2px dashed rgba(100, 100, 255, 0.2);
}

/* Mobile Styles (< 640px) */
@media (max-width: 639px) {
  .masonry-container {
    padding: 0 12px 16px 12px;
  }
  
  .masonry-item {
    padding: 6px 0;
  }
  
  /* Smaller note sizes on mobile - keep same ratio */
  .note-card[data-size="small"] {
    min-height: 120px !important;
    height: auto !important;
  }

  .note-card[data-size="medium"] {
    min-height: 160px !important;
    height: auto !important;
  }

  .note-card[data-size="large"] {
    min-height: 240px !important;
    height: auto !important;
  }
  
  /* Reduced drag effect on mobile */
  .masonry-item.muuri-item-dragging .note-card {
    transform: scale(1.01);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  }
}

/* Tablet Styles (640px - 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .masonry-container {
    padding: 0 16px 20px 16px;
  }
  
  .masonry-item {
    padding: 8px 0;
  }
}

/* Desktop Styles (1024px - 1279px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  .masonry-container {
    padding: 0 20px 24px 20px;
  }
}

/* Large Desktop Styles (1280px+) */
@media (min-width: 1280px) {
  .masonry-container {
    padding: 0 24px 32px 24px;
    /* max-width removed for infinite columns */
    width: 100%;
  }
  
  .masonry-item {
    padding: 10px 0;
  }
}

/* Smooth transition for layout changes */
.masonry-item,
.masonry-item-content,
.note-card {
  transition-property: transform, box-shadow, opacity;
  transition-duration: 0.2s;
  transition-timing-function: ease-out;
}

/* Prevent layout shift during animations */
.masonry-item.muuri-item-positioning {
  transition: none !important;
}

/* Hide scrollbars during drag to prevent jitter */
body.muuri-dragging {
  overflow: hidden;
}

/* Optimize for reduced motion */
@media (prefers-reduced-motion: reduce) {
  .masonry-item,
  .masonry-item-content,
  .note-card {
    transition: none;
  }
  
  .masonry-item.muuri-item-dragging .note-card {
    transform: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
}

/* Print styles */
@media print {
  .masonry-item.muuri-item-dragging,
  .muuri-item-placeholder {
    display: none !important;
  }
  
  .masonry-item {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}