/* ===================================================
   VIETTEL SOFTWARE NEXTGEN — Animations Stylesheet
   =================================================== */

/* Typing effect for hero title */
@keyframes blink-cursor {
  0%,100%{ border-color: transparent; }
  50%    { border-color: var(--red); }
}

/* Shimmer loading effect */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* Number counter animation */
@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Card hover lift */
@keyframes card-lift {
  to { transform: translateY(-6px); }
}

/* Gradient border animation */
@keyframes gradient-border {
  0%  { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100%{ background-position: 0% 50%; }
}

/* Step reveal */
@keyframes step-reveal {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Progress bar fill */
@keyframes fill-progress {
  from { width: 0 !important; }
}

/* Ripple effect for buttons */
@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

/* ===== PROGRESS BARS ===== */
.progress-bar-wrap {
  height: 6px;
  background: var(--gray-100);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 10px;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--red), #ff4466);
  animation: fill-progress 1.4s cubic-bezier(.4,0,.2,1) forwards;
  animation-play-state: paused;
}
.progress-bar-fill.animate {
  animation-play-state: running;
}

/* ===== STAGGER DELAYS ===== */
.delay-100 { transition-delay: .10s !important; }
.delay-150 { transition-delay: .15s !important; }
.delay-200 { transition-delay: .20s !important; }
.delay-250 { transition-delay: .25s !important; }
.delay-300 { transition-delay: .30s !important; }
.delay-350 { transition-delay: .35s !important; }
.delay-400 { transition-delay: .40s !important; }
.delay-450 { transition-delay: .45s !important; }

/* ===== HERO PARTICLES ===== */
#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ===== COUNTERS ===== */
.counter-number {
  display: inline-block;
  animation: count-up .5s ease both;
}

/* ===== RIPPLE BUTTON ===== */
.btn-ripple {
  position: relative;
  overflow: hidden;
}
.btn-ripple .ripple-wave {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
  width: 10px; height: 10px;
  transform: scale(0);
  animation: ripple .6s linear;
  pointer-events: none;
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: rgba(255,255,255,.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.5);
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: .5;
  animation: bounce-down 2s ease-in-out infinite;
  z-index: 2;
}
.scroll-indicator span {
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray-600);
}
.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  transform: rotate(45deg);
}
@keyframes bounce-down {
  0%,100%{ transform: translateX(-50%) translateY(0); }
  50%    { transform: translateX(-50%) translateY(8px); }
}