/* ========================================
   ANIMATIONS — Scroll Reveal, Pulse, Ping, Keyframes
   ======================================== */

/* ---------- FADE UP (scroll reveal) ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity .7s var(--ease-out),
    transform .7s var(--ease-out);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- FADE IN ---------- */
.fade-in {
  opacity: 0;
  transition: opacity .8s var(--ease-out);
  transition-delay: var(--d, 0ms);
  will-change: opacity;
}
.fade-in.in-view {
  opacity: 1;
}

/* ---------- SCALE IN ---------- */
.scale-in {
  opacity: 0;
  transform: scale(.92);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-spring);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.scale-in.in-view {
  opacity: 1;
  transform: scale(1);
}

/* ---------- KEYFRAMES ---------- */
@keyframes ping-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: .6;
  }
  70% {
    transform: translate(-50%, -50%) scale(1.6);
    opacity: 0;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.6);
    opacity: 0;
  }
}

@keyframes ping-ring-dark {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: .5;
  }
  70% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
  100% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

@keyframes blip {
  0% {
    box-shadow: 0 0 0 0 rgba(27,125,150,.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(27,125,150,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(27,125,150,0);
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* For dark section eyebrows */
.section-dark .pulse-dot::after {
  animation: ping-ring-dark 2.4s ease-out infinite;
}

/* Hero background ECG line (decorative) */
.hero-ecg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .12;
  pointer-events: none;
}
.hero-ecg svg {
  width: 100%;
  height: 100%;
}
.hero-ecg path {
  fill: none;
  stroke: var(--turq-light);
  stroke-width: 1.2;
  stroke-dasharray: 2600;
  stroke-dashoffset: 2600;
  animation: draw 4s ease-out forwards .5s;
}

/* ---------- LOGO REVEAL (tap) ---------- */
.header-logo {
  position: relative;
  display: inline-flex;
  align-items: center;
  overflow: visible;
}
.header-logo img {
  position: relative;
  z-index: 2;
  transition: transform .35s var(--ease-spring), filter .35s ease;
}
.header-logo.revealing img {
  transform: scale(1.12);
  filter: drop-shadow(0 0 12px rgba(92,175,198,.6));
}

.logo-reveal {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92,175,198,.45) 0%, rgba(27,125,150,0) 70%);
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
}
.header-logo.revealing .logo-reveal {
  animation: logo-ripple .7s var(--ease-out) forwards;
}

@keyframes logo-ripple {
  0% {
    width: 0;
    height: 0;
    opacity: .8;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    width: 140px;
    height: 140px;
    opacity: 0;
    transform: translate(-50%, -50%) scale(1);
  }
}