/* ============================================
   BEST METALL - ANIMATION STYLES
   GSAP Animations & Keyframe Effects
   ============================================ */

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(40px);
}

.reveal--left {
  transform: translateX(-40px);
}

.reveal--right {
  transform: translateX(40px);
}

.reveal--scale {
  transform: scale(0.95);
}

/* Split text animation container */
.split-text .char {
  display: inline-block;
  will-change: transform, opacity;
}

.split-text .word {
  display: inline-block;
  overflow: hidden;
}

.split-text .word-inner {
  display: inline-block;
  transform: translateY(100%);
}

/* Line reveal for section titles */
.line-reveal {
  position: relative;
  overflow: hidden;
}

.line-reveal::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-fire);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slower);
}

.line-reveal.revealed::after {
  transform: scaleX(1);
}

/* ============================================
   PARALLAX EFFECTS
   ============================================ */

.parallax-container {
  position: relative;
  overflow: hidden;
}

.parallax-layer {
  will-change: transform;
}

.parallax-layer--back {
  transform: translateZ(-1px) scale(2);
}

.parallax-layer--deep {
  transform: translateZ(-2px) scale(3);
}

/* Mouse parallax for hero */
.mouse-parallax {
  transition: transform var(--transition-fast);
  will-change: transform;
}

/* ============================================
   SCROLL-TRIGGERED STAGGER
   ============================================ */

.stagger-item {
  opacity: 0;
  transform: translateY(30px);
}

.stagger-item.revealed {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

/* Stagger delays */
.stagger-item[data-stagger="1"] { transition-delay: 0ms; }
.stagger-item[data-stagger="2"] { transition-delay: 100ms; }
.stagger-item[data-stagger="3"] { transition-delay: 200ms; }
.stagger-item[data-stagger="4"] { transition-delay: 300ms; }
.stagger-item[data-stagger="5"] { transition-delay: 400ms; }
.stagger-item[data-stagger="6"] { transition-delay: 500ms; }

/* ============================================
   COUNTER ANIMATION
   ============================================ */

.counter {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

.counter__prefix,
.counter__suffix {
  display: inline-block;
}

.counter__value {
  display: inline-block;
  min-width: 2ch;
}

/* Blueprint animation for metrics */
.blueprint-pulse {
  animation: blueprintPulse 2s ease-in-out infinite;
}

@keyframes blueprintPulse {
  0%, 100% {
    opacity: 0.1;
    stroke-width: 1;
  }
  50% {
    opacity: 0.3;
    stroke-width: 2;
  }
}

/* ============================================
   METALLIC REFLECTION
   ============================================ */

.metallic-reflection {
  position: relative;
  overflow: hidden;
}

.metallic-reflection::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.03) 50%,
    transparent 70%
  );
  animation: metallicShine 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes metallicShine {
  0%, 100% {
    transform: translateX(-100%) rotate(45deg);
  }
  50% {
    transform: translateX(100%) rotate(45deg);
  }
}

/* ============================================
   IMAGE REVEAL
   ============================================ */

.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal__mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--accent-fire);
  transform-origin: right;
  z-index: 2;
}

.image-reveal__img {
  transform: scale(1.2);
  transition: transform var(--transition-slower);
}

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

/* ============================================
   HORIZONTAL SCROLL SECTION
   ============================================ */

.horizontal-scroll {
  position: relative;
}

.horizontal-scroll__track {
  display: flex;
  flex-wrap: nowrap;
  will-change: transform;
}

.horizontal-scroll__item {
  flex-shrink: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Process progress indicator */
.progress-indicator {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 100;
}

.progress-indicator__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--steel-dark);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.progress-indicator__dot--active {
  background-color: var(--accent-fire);
  transform: scale(1.5);
}

/* ============================================
   CARD HOVER EFFECTS
   ============================================ */

.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(255, 107, 44, 0.3);
}

.hover-scale {
  transition: transform var(--transition-slow);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* ============================================
   BUTTON SHINE EFFECT
   ============================================ */

.btn-shine {
  position: relative;
  overflow: hidden;
}

.btn-shine::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 100%
  );
  transform: rotate(30deg) translateX(-100%);
  transition: transform var(--transition-slow);
}

.btn-shine:hover::after {
  transform: rotate(30deg) translateX(100%);
}

/* ============================================
   SECTION TRANSITIONS
   ============================================ */

.section-transition {
  position: relative;
}

.section-transition::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background: linear-gradient(to bottom, var(--bg-primary), transparent);
  pointer-events: none;
  z-index: 1;
}

/* ============================================
   NAVBAR SCROLL EFFECTS
   ============================================ */

.nav-scroll-effect {
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base), padding var(--transition-base);
}

.nav-scroll-effect--scrolled {
  background-color: rgba(10, 11, 13, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

/* ============================================
   LOADING ANIMATION
   ============================================ */

.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
}

.loader__spinner {
  width: 60px;
  height: 60px;
  border: 2px solid var(--steel-dark);
  border-top-color: var(--accent-fire);
  border-radius: 50%;
  animation: loaderSpin 1s linear infinite;
}

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

.loader__text {
  position: absolute;
  bottom: calc(50% - 80px);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ============================================
   FLIP CARD EFFECT
   ============================================ */

.flip-card {
  perspective: 1000px;
}

.flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
  transform-style: preserve-3d;
}

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

.flip-card__front,
.flip-card__back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.flip-card__back {
  transform: rotateY(180deg);
}

/* ============================================
   MAGNETIC EFFECT TARGETS
   ============================================ */

[data-magnetic] {
  transition: transform var(--transition-fast);
}

/* ============================================
   MARQUEE ANIMATION (legacy keyframes)
   ============================================ */

.marquee__content {
  display: inline-block;
  animation: marquee 30s linear infinite;
}

.marquee__content:hover {
  animation-play-state: paused;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================
   FORGE / SPARK ANIMATIONS
   ============================================ */

@keyframes sparkFly {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.4);
  }
  10% {
    opacity: 1;
    transform: translate(var(--spark-mid-x, 0), var(--spark-mid-y, -20px)) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--spark-end-x, 0), var(--spark-end-y, -160px)) scale(0.2);
  }
}

/* ============================================
   SVG DRAW ANIMATIONS
   ============================================ */

.draw-svg path,
.draw-svg line,
.draw-svg circle,
.draw-svg rect {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawLine 2s ease-in-out forwards;
}

@keyframes drawLine {
  to {
    stroke-dashoffset: 0;
  }
}

/* ============================================
   PULSE ANIMATION
   ============================================ */

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

/* ============================================
   FLOAT ANIMATION
   ============================================ */

.float {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .stagger-item {
    opacity: 1;
    transform: none;
  }
  
  .mouse-parallax,
  .parallax-layer {
    transform: none !important;
  }
  
  .metallic-reflection::before,
  .marquee__content,
  .marquee__inner,
  .float,
  .pulse,
  .blueprint-pulse,
  .weld-line,
  .weld-line::after,
  .process__line::after,
  .metric-card__blueprint,
  .cta__glow--1,
  .cta__glow--2,
  .tech-bar__dot {
    animation: none;
  }
  
  .loader__spinner {
    animation: none;
    border-top-color: var(--steel-dark);
  }
}