/**
 * Hi-Kataloog™ - PROFESSIONAL CATALOG CARDS v4.0
 * 
 * 🎯 ULTIMATE CARD & THUMBNAIL SYSTEM
 * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 * 
 * ✨ Features:
 * • Fully customizable thumbnails (size, aspect ratio, format)
 * • Advanced hover effects & interactions
 * • Smooth preloader animations
 * • Lazy loading optimization
 * • Responsive grid layouts
 * • Touch-optimized for mobile
 * • High-quality image rendering
 * • Accessibility compliant
 * 
 * 🎨 CSS Variables: --hk-card-*
 * All properties controllable via Elementor
 * 
 * @package Hi-Kataloog
 * @version 4.0.0
 * @since 2024-12-11
 * @author GitHub Copilot
 */

/* ═══════════════════════════════════════════════════════════════════════
   🎨 CSS CUSTOM PROPERTIES
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  /* 📐 Card Dimensions */
  --hk-card-width: 100%;
  --hk-card-aspect-ratio: 1 / 1.414; /* A4 ratio by default */
  --hk-card-min-height: 180px;
  --hk-card-max-height: none;
  
  /* 📏 Card Spacing */
  --hk-card-padding: 0;
  --hk-card-margin: 0;
  --hk-card-gap: 24px;
  
  /* 🎨 Card Colors */
  --hk-card-bg: #ffffff;
  --hk-card-border-color: #e2e8f0;
  --hk-card-hover-bg: #f8fafc;
  
  /* 🖼️ Thumbnail Settings */
  --hk-card-thumb-fit: cover; /* cover | contain | fill */
  --hk-card-thumb-position: center;
  --hk-card-thumb-bg: #f1f5f9;
  
  /* 🎯 Borders & Radius */
  --hk-card-border-width: 1px;
  --hk-card-border-style: solid;
  --hk-card-border-radius: 12px;
  
  /* 🌟 Effects & Shadows */
  --hk-card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --hk-card-hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* ⚡ Transitions */
  --hk-card-transition-duration: 0.3s;
  --hk-card-transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
  --hk-card-hover-scale: 1.03;
  --hk-card-hover-translate-y: -4px;
  
  /* 🎭 Overlay Effects */
  --hk-card-overlay-bg: rgba(0, 0, 0, 0.6);
  --hk-card-overlay-opacity: 0;
  --hk-card-overlay-hover-opacity: 1;
  
  /* 📱 Responsive */
  --hk-card-mobile-gap: 16px;
  --hk-card-mobile-border-radius: 10px;
}

/* ═══════════════════════════════════════════════════════════════════════
   📦 GRID LAYOUT SYSTEM
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   Responsive grid with customizable columns
   ═══════════════════════════════════════════════════════════════════════ */

.hk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--hk-card-gap);
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Column variations (controllable via Elementor) */
.hk-grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.hk-grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.hk-grid--cols-4 { grid-template-columns: repeat(4, 1fr); }
.hk-grid--cols-5 { grid-template-columns: repeat(5, 1fr); }
.hk-grid--cols-6 { grid-template-columns: repeat(6, 1fr); }

/* Masonry layout option */
.hk-grid--masonry {
  grid-auto-flow: dense;
}

/* ═══════════════════════════════════════════════════════════════════════
   🎴 CARD COMPONENT - Modern & Interactive
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-card {
  /* Layout */
  position: relative;
  display: flex;
  flex-direction: column;
  width: var(--hk-card-width);
  aspect-ratio: var(--hk-card-aspect-ratio);
  min-height: var(--hk-card-min-height);
  max-height: var(--hk-card-max-height);
  
  /* Spacing */
  padding: var(--hk-card-padding);
  margin: var(--hk-card-margin);
  
  /* Appearance */
  background: var(--hk-card-bg);
  border: var(--hk-card-border-width) var(--hk-card-border-style) var(--hk-card-border-color);
  border-radius: var(--hk-card-border-radius);
  
  /* Effects */
  box-shadow: var(--hk-card-shadow);
  overflow: hidden;
  
  /* Animations */
  transition: all var(--hk-card-transition-duration) var(--hk-card-transition-timing);
  
  /* Performance */
  will-change: transform, box-shadow;
  backface-visibility: hidden;
  transform: translateZ(0);
}

/* Hover State - Elegant Elevation */
.hk-card:hover {
  box-shadow: var(--hk-card-hover-shadow);
  transform: translateY(var(--hk-card-hover-translate-y)) scale(var(--hk-card-hover-scale));
  z-index: 10;
}

/* Focus State - Accessibility */
.hk-card:focus-within {
  outline: 2px solid #6366f1;
  outline-offset: 2px;
  z-index: 11;
}

/* ═══════════════════════════════════════════════════════════════════════
   🖼️ CARD THUMBNAIL - High Quality Image Display
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-card__thumb {
  position: relative;
  width: 100%;
  height: 100%;
  flex: 1 1 auto;
  background-color: var(--hk-card-thumb-bg);
  overflow: hidden;
}

/* Thumbnail Image */
.hk-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: var(--hk-card-thumb-fit);
  object-position: var(--hk-card-thumb-position);
  display: block;
  transition: transform var(--hk-card-transition-duration) var(--hk-card-transition-timing);
}

/* Zoom effect on hover */
.hk-card:hover .hk-card__thumb img {
  transform: scale(1.05);
}

/* Loading state - Skeleton */
.hk-card__thumb.is-loading {
  background: linear-gradient(
    90deg,
    var(--hk-card-thumb-bg) 0%,
    #e2e8f0 50%,
    var(--hk-card-thumb-bg) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Lazy loading fade-in */
.hk-card__thumb img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
}

.hk-card__thumb img[loading="lazy"].is-loaded {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════════════
   🎭 CARD OVERLAY - Interactive Information Layer
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px;
  background: var(--hk-card-overlay-bg);
  opacity: var(--hk-card-overlay-opacity);
  transition: opacity var(--hk-card-transition-duration) var(--hk-card-transition-timing);
  z-index: 5;
  pointer-events: none;
}

.hk-card:hover .hk-card__overlay {
  opacity: var(--hk-card-overlay-hover-opacity);
  pointer-events: auto;
}

/* Overlay Content */
.hk-card__title {
  margin: 0;
  padding: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  color: #ffffff;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transform: translateY(10px);
  transition: transform var(--hk-card-transition-duration) var(--hk-card-transition-timing);
}

.hk-card:hover .hk-card__title {
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════════════
   🎯 ACTION BUTTONS - Download, Favorite, Share
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-card__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transform: translateY(10px);
  opacity: 0;
  transition: all var(--hk-card-transition-duration) var(--hk-card-transition-timing);
  transition-delay: 0.05s;
}

.hk-card:hover .hk-card__actions {
  transform: translateY(0);
  opacity: 1;
}

.hk-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: rgba(255, 255, 255, 0.95);
  border: none;
  border-radius: 50%;
  color: #334155;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.hk-action-btn:hover {
  background: #ffffff;
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

.hk-action-btn:active {
  transform: scale(0.95);
}

.hk-action-btn svg,
.hk-action-btn img {
  width: 20px;
  height: 20px;
}

/* Favorite button active state */
.hk-action-icon.is-favorite {
  color: #fff;
  background: #ff1493;
}

.hk-action-icon.is-favorite:hover {
  background: #ff69b4;
  transform: scale(1.1);
}

/* ═══════════════════════════════════════════════════════════════════════
   🏷️ BADGES & LABELS
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  color: #ffffff;
  background: #ef4444;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  z-index: 6;
  animation: badge-pop-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes badge-pop-in {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Badge positions */
.hk-badge--top-left {
  top: 12px;
  left: 12px;
  right: auto;
}

.hk-badge--bottom-left {
  top: auto;
  bottom: 12px;
  left: 12px;
  right: auto;
}

.hk-badge--bottom-right {
  top: auto;
  bottom: 12px;
}

/* Badge variants */
.hk-badge--new {
  background: #10b981;
}

.hk-badge--sale {
  background: #f59e0b;
}

.hk-badge--popular {
  background: #8b5cf6;
}

/* ═══════════════════════════════════════════════════════════════════════
   ⏳ PRELOADER - Smooth Loading States
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

.hk-card__preloader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}

/* Spinner animation */
.hk-preloader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(99, 102, 241, 0.1);
  border-top-color: #6366f1;
  border-radius: 50%;
  animation: spinner-rotate 0.8s linear infinite;
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

/* Pulse animation alternative */
.hk-preloader-pulse {
  width: 40px;
  height: 40px;
  background: #6366f1;
  border-radius: 50%;
  animation: pulse-scale 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-scale {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

/* Dots animation */
.hk-preloader-dots {
  display: flex;
  gap: 8px;
}

.hk-preloader-dots span {
  width: 10px;
  height: 10px;
  background: #6366f1;
  border-radius: 50%;
  animation: dots-bounce 1.4s infinite ease-in-out both;
}

.hk-preloader-dots span:nth-child(1) { animation-delay: -0.32s; }
.hk-preloader-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes dots-bounce {
  0%, 80%, 100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   📱 RESPONSIVE DESIGN - Mobile Optimized
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
  :root {
    --hk-card-gap: 20px;
    --hk-card-hover-scale: 1.02;
    --hk-card-hover-translate-y: -3px;
  }
  
  .hk-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
  
  .hk-grid--cols-4,
  .hk-grid--cols-5,
  .hk-grid--cols-6 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .hk-card__title {
    font-size: 16px;
  }
}

/* Mobile: < 768px */
@media (max-width: 767px) {
  :root {
    --hk-card-gap: var(--hk-card-mobile-gap);
    --hk-card-border-radius: var(--hk-card-mobile-border-radius);
    --hk-card-hover-scale: 1.01;
    --hk-card-hover-translate-y: -2px;
  }
  
  /* 3 columns on mobile for better use of space */
  .hk-grid,
  .hk-grid--cols-2,
  .hk-grid--cols-3,
  .hk-grid--cols-4,
  .hk-grid--cols-5,
  .hk-grid--cols-6 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Always show overlay on mobile (no hover) */
  .hk-card__overlay {
    opacity: 0.9;
    pointer-events: auto;
  }
  
  .hk-card__title,
  .hk-card__actions {
    transform: translateY(0);
    opacity: 1;
  }
  
  /* Smaller action buttons */
  .hk-action-btn {
    width: 36px;
    height: 36px;
  }
  
  .hk-action-btn svg,
  .hk-action-btn img {
    width: 18px;
    height: 18px;
  }
  
  .hk-card__title {
    font-size: 14px;
  }
  
  /* Reduce hover effects on touch devices */
  @media (hover: none) {
    .hk-card:hover {
      transform: none;
    }
    
    .hk-card:hover .hk-card__thumb img {
      transform: none;
    }
  }
}

/* Extra small mobile: < 375px */
@media (max-width: 374px) {
  :root {
    --hk-card-gap: 12px;
  }
  
  /* Single column on very small screens */
  .hk-grid {
    grid-template-columns: 1fr;
  }
  
  .hk-badge {
    font-size: 10px;
    padding: 3px 8px;
    top: 8px;
    right: 8px;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   ♿ ACCESSIBILITY ENHANCEMENTS
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hk-card,
  .hk-card__thumb img,
  .hk-card__overlay,
  .hk-card__title,
  .hk-card__actions,
  .hk-action-btn,
  .hk-badge {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  
  .hk-card:hover,
  .hk-action-btn:hover {
    transform: none !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .hk-card {
    border-width: 2px;
  }
  
  .hk-action-btn {
    border: 2px solid currentColor;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   🎨 PRINT STYLES
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ═══════════════════════════════════════════════════════════════════════ */

@media print {
  .hk-card__overlay,
  .hk-card__actions,
  .hk-action-btn {
    display: none;
  }
  
  .hk-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #000;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   🎭 SPECIAL EFFECTS - Optional Advanced Interactions
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   Enable via Elementor controls
   ═══════════════════════════════════════════════════════════════════════ */

/* Tilt effect */
.hk-card--tilt {
  transform-style: preserve-3d;
}

.hk-card--tilt:hover {
  transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(var(--hk-card-hover-translate-y));
}

/* Flip effect */
.hk-card--flip {
  perspective: 1000px;
}

.hk-card--flip .hk-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.hk-card--flip:hover .hk-card__inner {
  transform: rotateY(180deg);
}

/* Glow effect */
.hk-card--glow:hover {
  box-shadow: 
    0 0 20px rgba(99, 102, 241, 0.4),
    0 0 40px rgba(99, 102, 241, 0.2),
    var(--hk-card-hover-shadow);
}