/* ==========================================================================
   SAININ SYSTEMS — EDITORIAL PAGE TRANSITIONS
   Ultra-Smooth Hardware-Accelerated Curtain Wipe & Reveal
   ========================================================================== */

/* Fullscreen Transition Overlay */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999999;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  overflow: hidden;
}

/* Dark Editorial Curtain */
.page-transition-curtain {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: #080B0D;
  background-image: radial-gradient(circle at 50% 50%, rgba(0, 200, 120, 0.08) 0%, transparent 65%);
  transform: translate3d(0, 100%, 0);
  will-change: transform;
  transition: transform 0.38s cubic-bezier(0.76, 0, 0.24, 1);
}

/* Emerald Top Progress Bar */
.page-transition-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: #00C878;
  box-shadow: 0 0 14px #00C878, 0 0 24px rgba(0, 200, 120, 0.6);
  z-index: 2;
  transition: width 0.36s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Brand Emblem */
.page-transition-brand {
  position: relative;
  z-index: 2;
  font-family: Manrope, Arial, -apple-system, sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: #ffffff;
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  transition: opacity 0.24s ease 0.08s, transform 0.24s cubic-bezier(0.22, 1, 0.36, 1) 0.08s;
  user-select: none;
}

.page-transition-brand span {
  color: #00C878;
  font-size: 0.65rem;
  font-weight: 600;
  vertical-align: super;
  margin-left: 2px;
}

/* ==========================================================================
   STATE 1: PAGE EXIT (Curtain slides up over current page)
   ========================================================================== */
.page-transition-overlay.is-exiting {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.page-transition-overlay.is-exiting .page-transition-curtain {
  transform: translate3d(0, 0%, 0);
}

.page-transition-overlay.is-exiting .page-transition-bar {
  width: 100%;
}

.page-transition-overlay.is-exiting .page-transition-brand {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* ==========================================================================
   STATE 2: PAGE REVEAL / ENTER (Curtain wipes upward out of view)
   ========================================================================== */
.page-transition-overlay.is-entering-start {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.page-transition-overlay.is-entering-start .page-transition-curtain {
  transform: translate3d(0, 0%, 0);
  transition: none; /* Instant initial cover */
}

.page-transition-overlay.is-entering-start .page-transition-bar {
  width: 100%;
  transition: none;
}

.page-transition-overlay.is-entering-start .page-transition-brand {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: none;
}

.page-transition-overlay.is-entering-active {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.page-transition-overlay.is-entering-active .page-transition-curtain {
  transform: translate3d(0, -100%, 0);
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-transition-overlay.is-entering-active .page-transition-bar {
  opacity: 0;
  transition: opacity 0.35s ease;
}

.page-transition-overlay.is-entering-active .page-transition-brand {
  opacity: 0;
  transform: translate3d(0, -10px, 0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

/* ==========================================================================
   PAGE CONTENT SUBTLE DEPTH
   ========================================================================== */
body.page-is-leaving {
  overflow: hidden !important;
}

body.page-is-leaving main,
body.page-is-leaving .hero,
body.page-is-leaving .intake-page {
  transition: opacity 0.32s ease, transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.85;
  transform: scale(0.99) translate3d(0, -6px, 0);
}

/* Entrance smooth float */
body.page-is-revealing main,
body.page-is-revealing .hero,
body.page-is-revealing .intake-page {
  animation: pageContentReveal 0.48s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes pageContentReveal {
  from {
    opacity: 0.35;
    transform: translate3d(0, 16px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  .page-transition-curtain,
  .page-transition-bar,
  .page-transition-brand,
  body.page-is-leaving main,
  body.page-is-revealing main {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}