/* ============================================
   FOLIOBLOX — Animations & Keyframes
   ============================================ */

/* ═══════════════════════════════════════════
   KEYFRAMES
   ═══════════════════════════════════════════ */

/* Loading Screen */
@keyframes letterReveal {
  0% {
    transform: translateY(100%);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes loaderFill {
  0% { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

/* Scroll Reveal — Fade Up */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Scroll Reveal — Fade In */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Scroll Reveal — Slide Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll Reveal — Slide Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll Reveal — Scale Up */
@keyframes scaleUp {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Text reveal clip */
@keyframes textClipReveal {
  from {
    clip-path: inset(0 100% 0 0);
  }
  to {
    clip-path: inset(0 0 0 0);
  }
}

/* Gradient breathing */
@keyframes gradientPulse {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}

/* Subtle float */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Counter count up */
@keyframes countPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* Page entrance */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shimmer sweep for tags */
@keyframes shimmerSweep {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* Progress bar glow */
@keyframes progressGlow {
  0%, 100% { box-shadow: 0 0 4px rgba(255, 77, 0, 0.3); }
  50% { box-shadow: 0 0 12px rgba(255, 77, 0, 0.6); }
}

/* Particles float */
@keyframes particleFloat {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translate(var(--tx, 100px), var(--ty, -200px)) scale(0.3);
    opacity: 0;
  }
}

/* ═══════════════════════════════════════════
   SCROLL REVEAL CLASSES
   ═══════════════════════════════════════════ */

/* Base state — hidden */
.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.97);
  transition: opacity var(--duration-slower) var(--ease-out-expo),
              transform var(--duration-slower) var(--ease-out-expo);
  will-change: opacity, transform;
}

.reveal--left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity var(--duration-slower) var(--ease-out-expo),
              transform var(--duration-slower) var(--ease-out-expo);
  will-change: opacity, transform;
}

.reveal--right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity var(--duration-slower) var(--ease-out-expo),
              transform var(--duration-slower) var(--ease-out-expo);
  will-change: opacity, transform;
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity var(--duration-slower) var(--ease-out-expo),
              transform var(--duration-slower) var(--ease-out-expo);
  will-change: opacity, transform;
}

.reveal--fade {
  opacity: 0;
  transition: opacity var(--duration-slowest) var(--ease-out-expo);
  will-change: opacity;
}

/* Revealed state */
.reveal.revealed,
.reveal--left.revealed,
.reveal--right.revealed,
.reveal--scale.revealed,
.reveal--fade.revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-stagger.revealed > *:nth-child(1)  { transition-delay: 0ms; }
.reveal-stagger.revealed > *:nth-child(2)  { transition-delay: 60ms; }
.reveal-stagger.revealed > *:nth-child(3)  { transition-delay: 120ms; }
.reveal-stagger.revealed > *:nth-child(4)  { transition-delay: 180ms; }
.reveal-stagger.revealed > *:nth-child(5)  { transition-delay: 240ms; }
.reveal-stagger.revealed > *:nth-child(6)  { transition-delay: 300ms; }
.reveal-stagger.revealed > *:nth-child(7)  { transition-delay: 360ms; }
.reveal-stagger.revealed > *:nth-child(8)  { transition-delay: 420ms; }
.reveal-stagger.revealed > *:nth-child(9)  { transition-delay: 480ms; }
.reveal-stagger.revealed > *:nth-child(10) { transition-delay: 540ms; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════
   PAGE TRANSITIONS (SWUP)
   ═══════════════════════════════════════════ */
.transition-fade {
  transition: 0.4s;
  opacity: 1;
  transform: translateY(0);
}

html.is-animating .transition-fade {
  opacity: 0;
  transform: translateY(-10px);
}

html.is-leaving .transition-fade {
  opacity: 0;
  transform: translateY(10px);
}

/* ═══════════════════════════════════════════
   HERO PARTICLES
   ═══════════════════════════════════════════ */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--color-solar-orange);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

/* ═══════════════════════════════════════════
   WORD-BY-WORD TEXT REVEAL
   ═══════════════════════════════════════════ */
.text-reveal {
  overflow: hidden;
  display: inline-block;
}

.text-reveal__word {
  display: inline-block;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.7s var(--ease-out-expo), opacity 0.7s var(--ease-out-expo);
}

.text-reveal.revealed .text-reveal__word {
  transform: translateY(0);
  opacity: 1;
}

/* ═══════════════════════════════════════════
   MAGNETIC BUTTON EFFECT
   ═══════════════════════════════════════════ */
.magnetic {
  transition: transform 0.3s var(--ease-out-expo);
}

/* ═══════════════════════════════════════════
   3D TILT CARD EFFECT
   ═══════════════════════════════════════════ */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.tilt-card__inner {
  transition: transform 0.4s var(--ease-out-expo);
  transform-style: preserve-3d;
}

/* ═══════════════════════════════════════════
   FORM SUCCESS ANIMATION
   ═══════════════════════════════════════════ */
@keyframes successPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4);
  }
  70% {
    box-shadow: 0 0 0 20px rgba(76, 175, 80, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(76, 175, 80, 0);
  }
}

.form-success {
  animation: successPulse 1s var(--ease-out-expo);
}

/* ═══════════════════════════════════════════
   TOAST NOTIFICATION
   ═══════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 16px 24px;
  background: var(--elevation-3);
  border: 1px solid rgba(76, 175, 80, 0.3);
  border-radius: var(--radius-lg);
  color: var(--color-on-surface);
  font: var(--text-body-sm);
  z-index: var(--z-overlay);
  transform: translateY(120%);
  opacity: 0;
  transition: all 0.4s var(--ease-out-expo);
}

.toast.visible {
  transform: translateY(0);
  opacity: 1;
}

.toast--error {
  border-color: rgba(255, 77, 0, 0.3);
}