/* ============================================
   quangit.online — Animations
   ============================================ */

.bg-orbs {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: orbFloat 20s ease-in-out infinite;
}

.bg-orb--1 {
  width: 600px; height: 600px;
  background: var(--primary-600);
  top: -200px; right: -100px;
  animation-duration: 25s;
}

.bg-orb--2 {
  width: 500px; height: 500px;
  background: var(--secondary-700);
  bottom: -150px; left: -100px;
  animation-delay: -5s;
  animation-duration: 30s;
}

.bg-orb--3 {
  width: 400px; height: 400px;
  background: var(--accent-700);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -10s;
  animation-duration: 22s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -80px) scale(1.1); }
  50% { transform: translate(-30px, 50px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.05); }
}

@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 fadeOut { from { opacity: 1; } to { opacity: 0; } }

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.3); }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1); }
}

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

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

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(108, 99, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(108, 99, 255, 0.4); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0; } }

.animate-fade-in { animation: fadeIn var(--transition-base) forwards; }
.animate-fade-in-up { animation: fadeInUp var(--transition-slow) forwards; }
.animate-scale-in { animation: scaleIn var(--transition-base) forwards; }
.animate-bounce-in { animation: bounceIn 600ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }

.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }

.page-enter { animation: fadeInUp 350ms cubic-bezier(0.4, 0, 0.2, 1) forwards; }
.page-exit { animation: fadeOut 200ms ease forwards; }

/* --- Premium Spring Animations --- */
@keyframes springUp {
  0%   { opacity: 0; transform: translateY(40px) scale(0.96); }
  60%  { opacity: 1; transform: translateY(-6px) scale(1.02); }
  80%  { transform: translateY(2px) scale(0.99); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes springScale {
  0%   { opacity: 0; transform: scale(0.8); }
  50%  { opacity: 1; transform: scale(1.06); }
  75%  { transform: scale(0.97); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes springRight {
  0%   { opacity: 0; transform: translateX(60px) scale(0.95); }
  55%  { opacity: 1; transform: translateX(-8px) scale(1.02); }
  80%  { transform: translateX(3px) scale(0.99); }
  100% { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(108,99,255,0.2), 0 0 60px rgba(108,99,255,0.05); }
  50%      { box-shadow: 0 0 30px rgba(108,99,255,0.35), 0 0 80px rgba(108,99,255,0.1); }
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50%      { transform: scale(1.03); opacity: 1; }
}

.animate-spring-up { animation: springUp 700ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }
.animate-spring-scale { animation: springScale 600ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }
.animate-spring-right { animation: springRight 700ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }


.skeleton {
  background: linear-gradient(90deg, var(--bg-surface) 25%, rgba(255,255,255,0.08) 50%, var(--bg-surface) 75%);
  background-size: 400% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text { height: 14px; margin-bottom: 8px; width: 80%; }
.skeleton-title { height: 24px; margin-bottom: 12px; width: 60%; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: var(--radius-full); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .bg-orb { animation: none; }
}