/* ============================================================
   ANIMATIONS.CSS — Keyframes & Micro-Animations
   ============================================================ */

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Scale ── */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

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

/* ── Float (for particles) ── */
@keyframes floatUp {
  0%   { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10%  { opacity: 0.8; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(-20vh) rotate(360deg); opacity: 0; }
}

@keyframes drift {
  0%   { transform: translate(0, 0) rotate(0deg); }
  33%  { transform: translate(10px, -15px) rotate(120deg); }
  66%  { transform: translate(-8px, -8px) rotate(240deg); }
  100% { transform: translate(0, 0) rotate(360deg); }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(0.8); }
  50%       { opacity: 1; transform: scale(1.2); }
}

/* ── Shimmer (skeleton loading) ── */
@keyframes shimmer {
  0%   { background-position: -468px 0; }
  100% { background-position: 468px 0; }
}

/* ── Slide ── */
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

@keyframes slideInUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

/* ── Spinner ── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Count up ── */
@keyframes countUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Glow pulse ── */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 8px rgba(108,60,228,0.3); }
  50%       { box-shadow: 0 0 24px rgba(108,60,228,0.7); }
}

/* ── Confetti ── */
@keyframes confettiFall {
  0%   { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

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

/* ── Border glow ── */
@keyframes borderGlow {
  0%, 100% { border-color: rgba(108,60,228,0.3); }
  50%       { border-color: rgba(108,60,228,0.8); }
}

/* ── Shimmer shine ── */
@keyframes shine {
  0%   { left: -100%; }
  100% { left: 200%; }
}

/* ── Animation Helper Classes ── */
.animate-fadeIn     { animation: fadeIn 0.4s ease forwards; }
.animate-fadeInUp   { animation: fadeInUp 0.5s ease forwards; }
.animate-fadeInDown { animation: fadeInDown 0.5s ease forwards; }
.animate-scaleIn    { animation: scaleIn 0.35s ease forwards; }
.animate-pulse      { animation: pulse 2s ease infinite; }
.animate-spin       { animation: spin 1s linear infinite; }
.animate-glow       { animation: glowPulse 2s ease infinite; }

/* Stagger delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ── Skeleton Loading ── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-surface) 25%,
    rgba(108,60,228,0.08) 50%,
    var(--bg-surface) 75%
  );
  background-size: 400% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text { height: 16px; margin-bottom: 8px; }
.skeleton-text.wide  { width: 80%; }
.skeleton-text.medium{ width: 60%; }
.skeleton-text.short { width: 40%; }
.skeleton-thumb { width: 100%; aspect-ratio: 16/9; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: 50%; }

/* ── Spinner ── */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(108,60,228,0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

.spinner-sm { width: 20px; height: 20px; border-width: 2px; }
.spinner-lg { width: 48px; height: 48px; border-width: 4px; }

/* ── Observe-based reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}