/* =========================================================
   SCROLL-TRIGGERED ANIMATIONS
   Used by IntersectionObserver in main.js — adds `.fade-in`
   when the element enters the viewport.
   ========================================================= */

/* ── Base hidden state ───────────────────────────────────── */
.fade-section,
.fade-up,
.fade-left,
.fade-right,
.scale-in {
  opacity: 0;
  will-change: opacity, transform;
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

/* Directional starting positions */
.fade-up    { transform: translateY(40px); }
.fade-left  { transform: translateX(-50px); }
.fade-right { transform: translateX(50px); }
.scale-in   { transform: scale(0.88); }
.fade-section { transform: translateY(20px); }

/* ── Revealed state (class added by JS observer) ─────────── */
.fade-section.fade-in,
.fade-up.fade-in,
.fade-left.fade-in,
.fade-right.fade-in,
.scale-in.fade-in {
  opacity: 1;
  transform: none;
}

/* ── Stagger delay helpers ───────────────────────────────── */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.35s; }
.delay-4 { transition-delay: 0.5s; }
.delay-5 { transition-delay: 0.65s; }

/* ── Named @keyframes used across the site ───────────────── */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOutDown {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(30px); }
}

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

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

@keyframes scaleIn {
  from { transform: scale(0.8); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

@keyframes ripple {
  to { transform: scale(2); opacity: 0; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1);    box-shadow: 0 0 0 0 var(--shadow, rgba(0,179,0,.3)); }
  50%       { transform: scale(1.05); box-shadow: 0 0 0 10px transparent; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px  var(--shadow, rgba(0,179,0,.3)); }
  50%       { box-shadow: 0 0 20px var(--shadow, rgba(0,179,0,.4)),
                          0 0 30px var(--shadow, rgba(0,179,0,.2)); }
}

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

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* ── Loading screen letters ──────────────────────────────── */
@keyframes letterPop {
  0%   { opacity: 0; transform: translateY(20px) scale(0.8); }
  60%  { transform: translateY(-4px) scale(1.05); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.loading-text .letter {
  display: inline-block;
  opacity: 0;
  animation: letterPop 0.6s ease forwards;
}

/* ── Loading progress bar pulse ─────────────────────────── */
@keyframes progressPulse {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Floating badges on hero image ──────────────────────── */
@keyframes floatBadge {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

.floating-badge {
  animation: floatBadge 3s ease-in-out infinite;
}
.floating-badge.badge-2 { animation-delay: 1s; }
.floating-badge.badge-3 { animation-delay: 2s; }

/* ── Typing cursor blink ─────────────────────────────────── */
@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.typing-cursor {
  animation: cursorBlink 0.8s step-end infinite;
}

/* ── Dots in loading status text ────────────────────────── */
@keyframes dotFade {
  0%, 80%, 100% { opacity: 0; }
  40%            { opacity: 1; }
}

.loading-status .dot:nth-child(1) { animation: dotFade 1.4s 0.0s infinite; }
.loading-status .dot:nth-child(2) { animation: dotFade 1.4s 0.2s infinite; }
.loading-status .dot:nth-child(3) { animation: dotFade 1.4s 0.4s infinite; }

/* ── Wave animation on loading screen ───────────────────── */
@keyframes wave {
  0%, 100% { transform: scaleY(0.5) translateX(0); }
  50%       { transform: scaleY(1.0) translateX(-5%); }
}

.wave { animation: wave 2s ease-in-out infinite; }
.wave.wave2 { animation-delay: 0.3s; }
.wave.wave3 { animation-delay: 0.6s; }

/* ── Particle float on loading screen ───────────────────── */
@keyframes particleFloat {
  0%   { transform: translateY(0)   scale(1);   opacity: 0.7; }
  50%  { transform: translateY(-20px) scale(1.1); opacity: 1; }
  100% { transform: translateY(0)   scale(1);   opacity: 0.7; }
}

.loading-particles .particle {
  animation: particleFloat 2s ease-in-out infinite;
}
.loading-particles .particle:nth-child(2) { animation-delay: 0.4s; }
.loading-particles .particle:nth-child(3) { animation-delay: 0.8s; }
.loading-particles .particle:nth-child(4) { animation-delay: 1.2s; }
.loading-particles .particle:nth-child(5) { animation-delay: 1.6s; }

/* ── Active nav-link glow ────────────────────────────────── */
.nav-link.active { animation: glow 2s ease-in-out infinite; }

/* ── Hire / CTA button glow on hover ────────────────────── */
.hire-btn:hover  { animation: glow 1s ease-in-out infinite; }

/* ── Respect user motion preference ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-section,
  .fade-up,
  .fade-left,
  .fade-right,
  .scale-in {
    opacity: 1;
    transform: none;
  }
}