/**
 * Animation Styles
 * Keyframes and animation classes for hero entrance, scroll reveals
 */

/* ========================================
   Keyframes
   ======================================== */

/* Fade In Up - Primary entrance animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Left */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade In Right */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scale In Small */
@keyframes scaleInSmall {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Slide Down (for accordions) */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide Up (for toasts) */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Gradient Shift */
@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Pulse Glow */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(var(--accent-color-rgb), 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(var(--accent-color-rgb), 0.5);
  }
}

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

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

/* Shimmer (for skeletons) */
@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Fade Out */
@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* ========================================
   Hero Entrance Animations
   ======================================== */

.hero-entrance {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.hero-entrance--1 { animation-delay: 0s; }
.hero-entrance--2 { animation-delay: 0.1s; }
.hero-entrance--3 { animation-delay: 0.2s; }
.hero-entrance--4 { animation-delay: 0.3s; }
.hero-entrance--5 { animation-delay: 0.4s; }
.hero-entrance--6 { animation-delay: 0.5s; }

/* Character stagger animation for hero title */
.hero-title-char {
  display: inline-block;
  opacity: 0;
  animation: fadeInUp 0.5s ease forwards;
  animation-delay: calc(var(--char-index) * 0.03s);
}

/* Hero gradient text */
.hero-gradient-text {
  background: linear-gradient(
    135deg,
    var(--text-primary) 0%,
    var(--accent-color-light) 50%,
    var(--accent-color) 100%
  );
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 4s ease infinite;
}

/* Hero stats counter animation */
.hero-stats {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 0.6s;
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */

/* Base reveal state - elements start hidden */
[data-reveal] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

/* Fade Up - most common */
[data-reveal="fade-up"] {
  transform: translateY(40px);
}

[data-reveal="fade-up"].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Fade Down */
[data-reveal="fade-down"] {
  transform: translateY(-40px);
}

[data-reveal="fade-down"].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Fade Left */
[data-reveal="fade-left"] {
  transform: translateX(-40px);
}

[data-reveal="fade-left"].revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Fade Right */
[data-reveal="fade-right"] {
  transform: translateX(40px);
}

[data-reveal="fade-right"].revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Scale In */
[data-reveal="scale-in"] {
  transform: scale(0.9);
}

[data-reveal="scale-in"].revealed {
  opacity: 1;
  transform: scale(1);
}

/* Scale In Small */
[data-reveal="scale-in-small"] {
  transform: scale(0.95);
}

[data-reveal="scale-in-small"].revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children animation */
[data-reveal="stagger"] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

[data-reveal="stagger"].revealed > *:nth-child(1) { transition-delay: 0s; }
[data-reveal="stagger"].revealed > *:nth-child(2) { transition-delay: 0.1s; }
[data-reveal="stagger"].revealed > *:nth-child(3) { transition-delay: 0.2s; }
[data-reveal="stagger"].revealed > *:nth-child(4) { transition-delay: 0.3s; }
[data-reveal="stagger"].revealed > *:nth-child(5) { transition-delay: 0.4s; }
[data-reveal="stagger"].revealed > *:nth-child(6) { transition-delay: 0.5s; }
[data-reveal="stagger"].revealed > *:nth-child(7) { transition-delay: 0.6s; }
[data-reveal="stagger"].revealed > *:nth-child(8) { transition-delay: 0.7s; }
[data-reveal="stagger"].revealed > *:nth-child(9) { transition-delay: 0.8s; }
[data-reveal="stagger"].revealed > *:nth-child(10) { transition-delay: 0.9s; }

[data-reveal="stagger"].revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* Delay modifiers */
[data-reveal-delay="100"] { transition-delay: 0.1s; }
[data-reveal-delay="200"] { transition-delay: 0.2s; }
[data-reveal-delay="300"] { transition-delay: 0.3s; }
[data-reveal-delay="400"] { transition-delay: 0.4s; }
[data-reveal-delay="500"] { transition-delay: 0.5s; }
[data-reveal-delay="600"] { transition-delay: 0.6s; }

/* ========================================
   Card Hover Effects
   ======================================== */

.card-hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(var(--accent-color-rgb), 0.15);
}

.card-hover-lift {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card-hover-lift:hover {
  transform: translateY(-12px) scale(1.02);
}

/* ========================================
   Button Micro-interactions
   ======================================== */

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

.btn-micro::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-micro:active::before {
  width: 300px;
  height: 300px;
}

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

.btn-shine::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

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

/* ========================================
   Loading States
   ======================================== */

.loading-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading-spin {
  animation: spin 1s linear infinite;
}

/* ========================================
   Special Effects
   ======================================== */

/* Glow effect for accent elements */
.glow-accent {
  animation: pulseGlow 3s ease-in-out infinite;
}

/* Float animation for decorative elements */
.float {
  animation: float 3s ease-in-out infinite;
}

.float-delay-1 { animation-delay: 0.5s; }
.float-delay-2 { animation-delay: 1s; }
.float-delay-3 { animation-delay: 1.5s; }

/* Gradient border effect */
.gradient-border {
  position: relative;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light), var(--accent-color));
  background-size: 200% 200%;
  border-radius: inherit;
  z-index: -1;
  animation: gradientShift 3s ease infinite;
}

/* Text gradient animation */
.text-gradient-animate {
  background: linear-gradient(
    90deg,
    var(--text-primary),
    var(--accent-color),
    var(--text-primary)
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 3s linear infinite;
}

/* ========================================
   Page Transitions
   ======================================== */

.page-transition-enter {
  opacity: 0;
  transform: translateY(20px);
}

.page-transition-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-transition-exit {
  opacity: 1;
  transform: translateY(0);
}

.page-transition-exit-active {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  .hero-entrance,
  .hero-title-char,
  .hero-stats,
  .card-hover,
  .card-hover-lift,
  .float,
  .glow-accent,
  .text-gradient-animate,
  .gradient-border::before {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  [data-reveal] {
    transform: none !important;
  }
}