/**
 * DALA Technologies - Animation Styles
 * Scroll-triggered animations, micro-interactions, and visual effects
 */

/* ==========================================
   CSS VARIABLES - SPACING REDUCTION
   ========================================== */
:root {
  /* Reduced section spacing */
  --section-padding-sm: 3rem 0;
  --section-padding-md: 4rem 0;
  --section-padding-lg: 5rem 0;
  --section-padding-xl: 6rem 0;
  
  /* Component spacing */
  --component-gap-sm: 1rem;
  --component-gap-md: 1.5rem;
  --component-gap-lg: 2rem;
  
  /* Animation timings */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ==========================================
   SCROLL-TRIGGERED REVEAL ANIMATIONS
   ========================================== */

/* Base reveal state */
.reveal-section,
[data-animate="reveal-up"],
[data-animate="fade-in"] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

/* Visible state */
.reveal-section.is-visible,
[data-animate="reveal-up"].is-visible,
[data-animate="fade-in"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children animations */
.stagger-child {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-child.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Left reveal */
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Right reveal */
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale reveal */
.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ==========================================
   COUNTER ANIMATION
   ========================================== */
[data-counter] {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ==========================================
   FLOATING ELEMENTS
   ========================================== */
.float-element {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ==========================================
   MAGNETIC BUTTONS
   ========================================== */
.magnetic {
  transition: transform 0.2s ease;
  will-change: transform;
}

/* ==========================================
   PARALLAX LAYERS
   ========================================== */
.parallax {
  will-change: transform;
}

/* ==========================================
   MARQUEE ANIMATION
   ========================================== */
.marquee-container {
  overflow: hidden;
  width: 100%;
}

.marquee-track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.marquee-item {
  flex-shrink: 0;
  padding: 0 2rem;
}

/* ==========================================
   LINE DRAW ANIMATION
   ========================================== */
.draw-line {
  position: relative;
  overflow: hidden;
}

.draw-line::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.draw-line.is-drawn::after {
  transform: scaleX(1);
}

/* Vertical line draw */
.draw-line-vertical::after {
  width: 2px;
  height: 100%;
  transform: scaleY(0);
  transform-origin: top;
}

.draw-line-vertical.is-drawn::after {
  transform: scaleY(1);
}

/* ==========================================
   TYPEWRITER EFFECT
   ========================================== */
.typewriter {
  display: inline;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--primary);
  margin-left: 2px;
  animation: cursor-blink 1s infinite;
  vertical-align: middle;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ==========================================
   SHINE EFFECT
   ========================================== */
.shine-effect {
  position: relative;
  overflow: hidden;
}

.shine-effect::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at var(--shine-x, 50%) var(--shine-y, 50%),
    rgba(255, 255, 255, 0.3) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.shine-effect.shining::before {
  opacity: 1;
}

/* ==========================================
   IMAGE REVEAL
   ========================================== */
.reveal-image {
  position: relative;
  overflow: hidden;
}

.reveal-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--dark);
  transform: translateY(0);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 2;
}

.reveal-image img {
  transform: scale(1.2);
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.reveal-image.is-revealed::before {
  transform: translateY(100%);
}

.reveal-image.is-revealed img {
  transform: scale(1);
}

/* ==========================================
   NAVBAR SCROLL EFFECT
   ========================================== */
.navbar {
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.navbar-scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  padding-top: 0.75rem !important;
  padding-bottom: 0.75rem !important;
}

/* ==========================================
   HOVER MICRO-INTERACTIONS
   ========================================== */

/* Lift effect */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Scale effect */
.hover-scale {
  transition: transform 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Glow effect */
.hover-glow {
  transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(229, 57, 53, 0.4);
}

/* Border slide effect */
.hover-border-slide {
  position: relative;
}

.hover-border-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  transition: width 0.4s ease;
}

.hover-border-slide:hover::before {
  width: 100%;
}

/* Icon bounce */
.hover-icon-bounce .icon {
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hover-icon-bounce:hover .icon {
  transform: translateY(-5px) scale(1.1);
}

/* Rotate icon */
.hover-rotate .icon {
  transition: transform 0.5s ease;
}

.hover-rotate:hover .icon {
  transform: rotate(360deg);
}

/* ==========================================
   BUTTON ENHANCEMENTS
   ========================================== */

/* Button pulse */
.btn-pulse {
  position: relative;
}

.btn-pulse::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: inherit;
  transform: translate(-50%, -50%) scale(1);
  opacity: 0.5;
  z-index: -1;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

/* Button shimmer */
.btn-shimmer {
  position: relative;
  overflow: hidden;
}

.btn-shimmer::after {
  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 0.5s ease;
}

.btn-shimmer:hover::after {
  left: 100%;
}

/* ==========================================
   CARD ENHANCEMENTS
   ========================================== */

/* 3D tilt effect placeholder */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* Gradient border on hover */
.card-gradient-border {
  position: relative;
  background: white;
  border-radius: 12px;
}

.card-gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #FF5252, var(--primary));
  background-size: 200% 200%;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.card-gradient-border:hover::before {
  opacity: 1;
  animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ==========================================
   LOADING STATES
   ========================================== */

/* Skeleton loading */
.skeleton {
  background: linear-gradient(
    90deg,
    #f0f0f0 25%,
    #e0e0e0 50%,
    #f0f0f0 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 4px;
}

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

/* ==========================================
   TEXT ANIMATIONS
   ========================================== */

/* Gradient text */
.text-gradient {
  background: linear-gradient(135deg, var(--primary), #FF5252);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Underline expand */
.text-underline-expand {
  position: relative;
  display: inline-block;
}

.text-underline-expand::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.text-underline-expand:hover::after {
  width: 100%;
}

/* ==========================================
   SECTION SPACING REDUCTIONS
   ========================================== */

/* Compact sections */
.section-compact {
  padding: var(--section-padding-sm);
}

.section-normal {
  padding: var(--section-padding-md);
}

.section-spacious {
  padding: var(--section-padding-lg);
}

/* Reduced gap utilities */
.gap-compact {
  gap: var(--component-gap-sm);
}

.gap-normal {
  gap: var(--component-gap-md);
}

.gap-spacious {
  gap: var(--component-gap-lg);
}

/* Background variations to reduce perceived whitespace */
.bg-alt {
  background: linear-gradient(180deg, #fff 0%, #f8f9fa 50%, #fff 100%);
}

.bg-subtle-pattern {
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(229, 57, 53, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(229, 57, 53, 0.02) 0%, transparent 40%);
}

/* ==========================================
   UTILITY ANIMATIONS
   ========================================== */

/* Spin animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 2s linear infinite;
}

/* Bounce animation */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-bounce {
  animation: bounce 2s infinite;
}

/* Fade in animation */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* Slide up animation */
@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(30px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-slide-up {
  animation: slideUp 0.6s ease forwards;
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Shake animation */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.animate-shake {
  animation: shake 0.5s ease;
}

/* ==========================================
   REDUCED MOTION SUPPORT
   ========================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal-section,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ==========================================
   PERFORMANCE OPTIMIZATIONS
   ========================================== */
.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

.will-animate {
  will-change: transform, opacity;
}