/* ================================================================
   TrkFit V4 — css/animations.css
   All keyframes + animation utility classes
================================================================ */

/* ── Keyframes ───────────────────────────────────────────────── */
@keyframes fadeIn     { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut    { from { opacity: 1; } to { opacity: 0; } }

@keyframes scaleIn    { from { opacity: 0; transform: scale(.92); }  to { opacity: 1; transform: scale(1); } }
@keyframes scaleOut   { from { opacity: 1; transform: scale(1); }    to { opacity: 0; transform: scale(.92); } }

@keyframes slideUp    { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideDown  { from { opacity: 0; transform: translateY(-24px);} to { opacity: 1; transform: translateY(0); } }
@keyframes slideLeft  { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideRight { from { opacity: 0; transform: translateX(-24px);} to { opacity: 1; transform: translateX(0); } }

@keyframes floatY {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}

@keyframes floatYSm {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-5px); }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1;  transform: scale(1); }
  50%       { opacity: .6; transform: scale(.95); }
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,201,110,.4); }
  50%       { box-shadow: 0 0 0 8px rgba(0,201,110,0); }
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(-8px) scale(.9); }
}

@keyframes logoDot {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-3px); }
}

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

@keyframes borderGlow {
  0%, 100% { box-shadow: 0 0 0 3px var(--c-accent-lt); }
  50%       { box-shadow: 0 0 0 6px var(--c-accent-lt); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes waveIn {
  from { transform: scaleY(0); transform-origin: bottom; }
  to   { transform: scaleY(1); transform-origin: bottom; }
}

/* ── Scroll-triggered fade-in classes ────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity .7s ease;
}

.fade-in.visible { opacity: 1; }

.fade-left {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity .7s ease, transform .7s ease;
}

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

.fade-right {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity .7s ease, transform .7s ease;
}

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

/* Stagger delays */
.d1 { transition-delay: .1s; }
.d2 { transition-delay: .2s; }
.d3 { transition-delay: .3s; }
.d4 { transition-delay: .4s; }
.d5 { transition-delay: .5s; }
.d6 { transition-delay: .6s; }

/* ── Float animations ─────────────────────────────────────────── */
.float     { animation: floatY   4s ease-in-out infinite; }
.float-sm  { animation: floatYSm 3s ease-in-out infinite; }
.float-d1  { animation-delay: .3s; }
.float-d2  { animation-delay: .7s; }
.float-d3  { animation-delay: 1.2s; }

/* ── Gradient animated text ──────────────────────────────────── */
.text-gradient {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-hero {
  background: linear-gradient(135deg, #00c96e, #0072ff, #9b27af);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
}

/* ── Glassmorphism ───────────────────────────────────────────── */
.glass {
  background: rgba(255,255,255,.1);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid rgba(255,255,255,.2);
}

[data-theme="dark"] .glass {
  background: rgba(0,0,0,.2);
  border-color: rgba(255,255,255,.08);
}

/* ── Hover glow ──────────────────────────────────────────────── */
.hover-glow:hover {
  box-shadow: 0 0 0 4px var(--c-accent-lt), var(--sh-md);
}

/* ── Ripple on click ─────────────────────────────────────────── */
.ripple-effect {
  position: relative;
  overflow: hidden;
}