/* ============ ADVANCED GRID LAYOUT SYSTEM ============ */

/* Modern CSS Grid - Responsive without media queries */
.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-2 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-3 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Full-width grid item */
.grid-full {
  grid-column: 1 / -1;
}

/* Span multiple columns */
.grid-span-2 {
  grid-column: span 2;
}

.grid-span-3 {
  grid-column: span 3;
}

/* Masonry-like layout for posts */
.masonry-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  grid-auto-rows: auto;
}

.masonry-item {
  display: flex;
  flex-direction: column;
  border-radius: 0.5rem;
  overflow: hidden;
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.gallery-item {
  aspect-ratio: 1;
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

/* Responsive flex grid */
.flex-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.flex-grid-item {
  flex: 1 1 300px;
  min-width: 280px;
}

/* Container queries (future-proof) */
@supports (container-type: inline-size) {
  .container-query {
    container-type: inline-size;
  }
  
  @container (min-width: 400px) {
    .container-query-sm {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }
  }
  
  @container (min-width: 700px) {
    .container-query-md {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 1.5rem;
    }
  }
}

/* ============ MICRO-INTERACTIONS & ANIMATIONS ============ */

/* 1. FADE-IN ANIMATIONS */
.fade-in {
  opacity: 0;
  animation: fadeIn var(--transition-slow) ease-in-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in-down {
  opacity: 0;
  transform: translateY(-20px);
  animation: fadeInDown var(--transition-slow) ease-out forwards;
}

@keyframes fadeInDown {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp var(--transition-slow) ease-out forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-20px);
  animation: fadeInLeft var(--transition-slow) ease-out forwards;
}

@keyframes fadeInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in-right {
  opacity: 0;
  transform: translateX(20px);
  animation: fadeInRight var(--transition-slow) ease-out forwards;
}

@keyframes fadeInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 2. SCALE & GROW ANIMATIONS */
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  animation: scaleIn var(--transition-slow) ease-out forwards;
}

@keyframes scaleIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.bounce-in {
  opacity: 0;
  animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

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

/* 3. FLIP ANIMATIONS */
.flip-in-x {
  animation: flipInX 0.6s ease-out forwards;
}

@keyframes flipInX {
  from {
    opacity: 0;
    transform: perspective(400px) rotateX(90deg);
  }
  to {
    opacity: 1;
    transform: perspective(400px) rotateX(0deg);
  }
}

.flip-in-y {
  animation: flipInY 0.6s ease-out forwards;
}

@keyframes flipInY {
  from {
    opacity: 0;
    transform: perspective(400px) rotateY(90deg);
  }
  to {
    opacity: 1;
    transform: perspective(400px) rotateY(0deg);
  }
}

/* 4. SLIDE ANIMATIONS */
.slide-in-top {
  animation: slideInTop var(--transition-slow) ease-out forwards;
}

@keyframes slideInTop {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

.slide-in-bottom {
  animation: slideInBottom var(--transition-slow) ease-out forwards;
}

@keyframes slideInBottom {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.slide-in-left {
  animation: slideInLeft var(--transition-slow) ease-out forwards;
}

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

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out forwards;
}

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

/* 5. ELASTIC ANIMATIONS */
.elastic {
  animation: elastic 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

@keyframes elastic {
  0% {
    transform: scale(0);
  }
  55% {
    transform: scale(1.1);
  }
  75% {
    transform: scale(0.95);
  }
  100% {
    transform: scale(1);
  }
}

/* 6. WOBBLE ANIMATIONS */
.wobble {
  animation: wobble 0.8s ease-in-out;
}

@keyframes wobble {
  0%, 100% {
    transform: translateX(0);
  }
  15% {
    transform: translateX(-5px) rotate(-3deg);
  }
  30% {
    transform: translateX(5px) rotate(3deg);
  }
  45% {
    transform: translateX(-5px) rotate(-3deg);
  }
  60% {
    transform: translateX(3px) rotate(2deg);
  }
  75% {
    transform: translateX(-2px) rotate(-1deg);
  }
}

/* 7. HEARTBEAT ANIMATIONS */
.heartbeat {
  animation: heartbeat 1.3s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.15);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.15);
  }
  70% {
    transform: scale(1);
  }
}

/* 8. REVEAL ANIMATIONS (for scroll) */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

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

.reveal-stagger {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.reveal-stagger.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger effect para múltiples elementos */
.reveal-stagger:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger:nth-child(4) { transition-delay: 0.4s; }
.reveal-stagger:nth-child(5) { transition-delay: 0.5s; }
.reveal-stagger:nth-child(n+6) { transition-delay: 0.6s; }

/* ============ ADVANCED HOVER EFFECTS ============ */

/* 1. LIFT EFFECT */
.lift {
  transition: all var(--transition-base);
}

.lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 2. GLOW EFFECT */
.glow {
  transition: all var(--transition-base);
}

.glow:hover {
  box-shadow: 0 0 20px rgba(0, 138, 255, 0.4);
}

:root[data-theme="dark"] .glow:hover {
  box-shadow: 0 0 20px rgba(92, 167, 255, 0.6);
}

/* 3. OVERLAY EFFECT */
.overlay-effect {
  position: relative;
  overflow: hidden;
}

.overlay-effect::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-slow);
}

.overlay-effect:hover::before {
  left: 100%;
}

/* 4. SHIMMER EFFECT */
.shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

:root[data-theme="dark"] .shimmer {
  background: linear-gradient(90deg, #2d2d2d 25%, #404040 50%, #2d2d2d 75%);
}

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

/* 5. TILT EFFECT (3D perspective) */
.tilt {
  transition: all var(--transition-base);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.tilt:hover {
  transform: rotateX(5deg) rotateY(-5deg);
}

/* 6. BLUR & UNBLUR ON HOVER */
.blur-on-hover:hover ~ .blur-target,
.blur-container:hover .blur-element:not(:hover) {
  filter: blur(5px);
  opacity: 0.5;
}

.blur-element {
  transition: filter var(--transition-base), opacity var(--transition-base);
}

/* ============ BACKDROP EFFECTS ============ */

/* Glass morphism effect */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.75rem;
}

:root[data-theme="dark"] .glass {
  background: rgba(37, 37, 37, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Frosted effect */
.frosted {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px) saturate(180%);
  -webkit-backdrop-filter: blur(8px) saturate(180%);
  border-radius: 0.375rem;
}

:root[data-theme="dark"] .frosted {
  background: rgba(37, 37, 37, 0.9);
}

/* ============ STAGGERED ANIMATIONS ============ */

.stagger {
  opacity: 0;
}

.stagger.active {
  opacity: 1;
  animation: fadeIn var(--transition-slow) ease-out forwards;
}

/* Stagger children elements on load */
.stagger-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stagger-container .stagger-item {
  opacity: 0;
}

.stagger-container.active .stagger-item {
  animation: staggerAnimation var(--transition-slow) ease-out forwards;
}

.stagger-container.active .stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-container.active .stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-container.active .stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-container.active .stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-container.active .stagger-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes staggerAnimation {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ PARALLAX-LIKE EFFECTS ============ */

.parallax-bg {
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}

@media (prefers-reduced-motion: reduce) {
  .parallax-bg {
    background-attachment: scroll;
  }
}

/* Mouse parallax effect holder */
.parallax-container {
  perspective: 1000px;
  transform-style: preserve-3d;
}

.parallax-element {
  transform-style: preserve-3d;
  transition: transform var(--transition-base);
}

/* ============ LOADING ANIMATIONS ============ */

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 2s infinite;
}

:root[data-theme="dark"] .skeleton {
  background: linear-gradient(90deg, #2d2d2d 25%, #404040 50%, #2d2d2d 75%);
}

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

/* ============ SCROLL ANIMATIONS ============ */

/* Fade in on scroll */
.fade-in-scroll {
  opacity: 0;
  transition: opacity 0.6s ease-out;
}

.fade-in-scroll.in-view {
  opacity: 1;
}

/* Slide up on scroll */
.slide-up-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-up-scroll.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Zoom in on scroll */
.zoom-in-scroll {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.zoom-in-scroll.in-view {
  opacity: 1;
  transform: scale(1);
}

/* ============ UTILITIES FOR ANIMATION CONTROL ============ */

.no-animation {
  animation: none !important;
  transition: none !important;
}

.animation-fast {
  animation-duration: var(--transition-fast) !important;
  transition-duration: var(--transition-fast) !important;
}

.animation-normal {
  animation-duration: var(--transition-base) !important;
  transition-duration: var(--transition-base) !important;
}

.animation-slow {
  animation-duration: var(--transition-slow) !important;
  transition-duration: var(--transition-slow) !important;
}

.animation-delay-1 { animation-delay: 0.1s; }
.animation-delay-2 { animation-delay: 0.2s; }
.animation-delay-3 { animation-delay: 0.3s; }
.animation-delay-4 { animation-delay: 0.4s; }
.animation-delay-5 { animation-delay: 0.5s; }

/* Accessibility: Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .parallax-bg {
    background-attachment: scroll !important;
  }
}