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

/* ── Page Load: Fade Up ── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ── Shimmer sweep for glass cards ── */
@keyframes shimmer {
  0%   { transform: translateX(-100%) skewX(-15deg); }
  100% { transform: translateX(250%)  skewX(-15deg); }
}

/* ── Glow pulse ── */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%       { box-shadow: 0 0 16px 4px var(--accent-glow); }
}

/* ── Spin (for theme toggle icon) ── */
@keyframes spinIn {
  from { transform: rotate(-90deg) scale(0.6); opacity: 0; }
  to   { transform: rotate(0deg) scale(1);    opacity: 1; }
}

/* ── Blob drift ── */
@keyframes blobDrift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-15px, 15px) scale(0.97); }
}
@keyframes blobDrift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(-25px, 25px) scale(1.03); }
  66%       { transform: translate(20px, -10px) scale(0.98); }
}

/* ── Scroll Reveal States ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity  var(--transition-slow),
    transform var(--transition-slow);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition:
    opacity  var(--transition-slow),
    transform var(--transition-slow);
}

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

/* Stagger delay helpers */
.delay-1 { transition-delay: 80ms;  }
.delay-2 { transition-delay: 160ms; }
.delay-3 { transition-delay: 240ms; }
.delay-4 { transition-delay: 320ms; }
.delay-5 { transition-delay: 400ms; }

/* ── Hero Load Animation ── */
.hero-animate {
  animation: fadeUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) both;
}
.hero-animate-1 { animation-delay: 0.1s; }
.hero-animate-2 { animation-delay: 0.22s; }
.hero-animate-3 { animation-delay: 0.34s; }
.hero-animate-4 { animation-delay: 0.46s; }

/* ── Glass Card Shimmer ── */
.glass-card {
  position: relative;
  overflow: hidden;
}

.glass-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 40%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  pointer-events: none;
  transition: none;
}

.glass-card:hover::after {
  animation: shimmer 0.65s ease forwards;
}

/* ── Floating Blobs (decorative background elements) ── */
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
  transition: opacity var(--transition-slow);
}

[data-theme="light"] .blob {
  opacity: 0.35;
}

.blob-1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle at 40% 40%, #5a8cff 0%, #7b4fff 50%, transparent 70%);
  top: -200px;
  left: -180px;
  animation: blobDrift1 18s ease-in-out infinite;
}

.blob-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle at 50% 50%, #00e5d4 0%, #00b8d9 50%, transparent 70%);
  bottom: -150px;
  right: -150px;
  animation: blobDrift2 22s ease-in-out infinite;
}

.blob-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle at 50% 50%, #b06eff 0%, #6e40ff 50%, transparent 70%);
  top: 40%;
  right: 5%;
  animation: blobDrift1 26s ease-in-out infinite reverse;
  opacity: 0.30;
}

/* ── Hover lift ── */
.lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left {
    opacity: 1;
    transform: none;
  }
}