/* ============================================================
   VRAJ ENGINEERING — Utility Classes & Animations v2
   ============================================================ */

/* ---------- Keyframes ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

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

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-4px); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

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

/* ---------- Animation Classes ---------- */
.animate-fade-in-up {
  animation: fadeInUp 400ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.animate-fade-in {
  animation: fadeIn 300ms ease-out both;
}
.animate-slide-in-right {
  animation: slideInRight 400ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.animate-scale-in {
  animation: scaleIn 300ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Staggered delays */
.delay-1 { animation-delay: 50ms; }
.delay-2 { animation-delay: 100ms; }
.delay-3 { animation-delay: 150ms; }
.delay-4 { animation-delay: 200ms; }
.delay-5 { animation-delay: 250ms; }
.delay-6 { animation-delay: 300ms; }
.delay-7 { animation-delay: 350ms; }
.delay-8 { animation-delay: 400ms; }

/* ---------- Hover Effects ---------- */
.hover-lift {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.hover-scale {
  transition: transform var(--transition-fast);
}
.hover-scale:hover {
  transform: scale(1.03);
}
.hover-scale:active {
  transform: scale(0.97);
}

.hover-border {
  transition: border-color var(--transition-fast);
}
.hover-border:hover {
  border-color: var(--primary-300);
}

.hover-glow {
  transition: box-shadow var(--transition-fast);
}
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(90, 116, 247, 0.12);
}

.hover-glass {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}
.hover-glass::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(90, 116, 247, 0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  border-radius: inherit;
}
.hover-glass:hover::after {
  opacity: 1;
}
.hover-glass:hover {
  border-color: var(--primary-200);
  box-shadow: var(--shadow-sm);
}

/* ---------- AI Feature Glow ---------- */
.ai-glow {
  position: relative;
}
.ai-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent-400), var(--primary-400));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}
.ai-glow:hover::before {
  opacity: 0.12;
}

/* ---------- Typing Indicator ---------- */
.typing-dots {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.typing-dots span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--neutral-400);
  animation: typingBounce 1.2s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ---------- Pulse Dot ---------- */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--error-text);
  animation: pulse-dot 2s infinite;
}

/* ---------- Glassmorphism base ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
}

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

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

/* ---------- Flex Helpers ---------- */
.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.flex-wrap  { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.items-end    { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.flex-1   { flex: 1; }
.shrink-0 { flex-shrink: 0; }

/* ---------- Spacing Helpers ---------- */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }

/* ---------- Width ---------- */
.w-full { width: 100%; }

/* ---------- Cursor ---------- */
.cursor-pointer { cursor: pointer; }

/* ---------- Overflow ---------- */
.overflow-hidden { overflow: hidden; }

/* ---------- Position ---------- */
.relative { position: relative; }
.absolute { position: absolute; }

/* ---------- Text alignment ---------- */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-left { text-align: left; }

/* ---------- Display ---------- */
.hidden { display: none; }

/* ---------- Border Radius ---------- */
.rounded-sm  { border-radius: var(--radius-sm); }
.rounded-md  { border-radius: var(--radius-md); }
.rounded-lg  { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }