/* ============================================================
   ADVERIS — ANIMATIONS & TRANSITIONS
   NKF-inspired: consistent ease-in-out, graceful entrances
   ============================================================ */

/* ============================================================
   SCROLL REVEAL — Intersection Observer powered
   Slower, more graceful than before (0.7s → 0.9s, expo-out)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Staggered children — wider delays for a graceful cascade */
.stagger > *:nth-child(1)  { transition-delay: 0.06s; }
.stagger > *:nth-child(2)  { transition-delay: 0.14s; }
.stagger > *:nth-child(3)  { transition-delay: 0.22s; }
.stagger > *:nth-child(4)  { transition-delay: 0.30s; }
.stagger > *:nth-child(5)  { transition-delay: 0.38s; }
.stagger > *:nth-child(6)  { transition-delay: 0.46s; }
.stagger > *:nth-child(7)  { transition-delay: 0.54s; }
.stagger > *:nth-child(8)  { transition-delay: 0.62s; }

/* ============================================================
   HERO INTRO ANIMATION — staggered, slow, premium
   ============================================================ */
.hero__badge   { animation: fadeSlideDown 1.0s cubic-bezier(0.16,1,0.3,1) 0.1s both; }
.hero__title   { animation: fadeSlideUp   1.1s cubic-bezier(0.16,1,0.3,1) 0.3s both; }
.hero__sub     { animation: fadeSlideUp   1.0s cubic-bezier(0.16,1,0.3,1) 0.5s both; }
.hero__actions { animation: fadeSlideUp   1.0s cubic-bezier(0.16,1,0.3,1) 0.7s both; }

.page-hero__label { animation: fadeSlideDown 0.9s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
.page-hero__title { animation: fadeSlideUp   1.1s cubic-bezier(0.16,1,0.3,1) 0.35s both; }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ============================================================
   NAV — smooth color + bg transitions (NKF: same easing everywhere)
   ============================================================ */
.nav { transition: background 0.5s cubic-bezier(0.37,0,0.63,1),
                   box-shadow 0.5s cubic-bezier(0.37,0,0.63,1),
                   border-color 0.5s cubic-bezier(0.37,0,0.63,1); }

.nav .logo-name,
.nav .logo-tagline,
.nav__crumb,
.nav__menu-btn { transition: color 0.45s cubic-bezier(0.37,0,0.63,1); }

/* ============================================================
   CARD HOVER — gentle lift + shadow deepening
   NKF feel: not jarring, just a whisper of elevation
   ============================================================ */
.svc-card,
.team-card,
.insight-card,
.role-card,
.value-card,
.svc-detail-card {
  will-change: transform;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              border-color 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.svc-card:hover,
.role-card:hover { transform: translateY(-5px); }

.team-card:hover { transform: translateY(-4px); }

.insight-card:hover { transform: translateY(-4px); }

.value-card:hover { transform: translateY(-3px); }

/* ============================================================
   LINK HOVER — sliding underline (NKF signature)
   ============================================================ */
.menu-primary-link,
.footer-col a,
.arrow-link span:not(.line):not(.arr) {
  position: relative;
}
.footer-col a::after,
.menu-primary-link::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0;
  width: 0; height: 1px;
  background: currentColor;
  transition: width 0.4s cubic-bezier(0.37, 0, 0.63, 1);
}
.footer-col a:hover::after,
.menu-primary-link:hover::after { width: 100%; }

/* ============================================================
   BUTTON — ripple + smooth bg transition
   ============================================================ */
.btn {
  position: relative; overflow: hidden;
  transition: background 0.4s cubic-bezier(0.37,0,0.63,1),
              color 0.4s cubic-bezier(0.37,0,0.63,1),
              transform 0.35s cubic-bezier(0.37,0,0.63,1),
              box-shadow 0.4s cubic-bezier(0.37,0,0.63,1),
              border-color 0.4s cubic-bezier(0.37,0,0.63,1);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

/* ============================================================
   ARROW LINK — smooth icon slide
   ============================================================ */
.arrow-link .arr {
  display: inline-block;
  transition: transform 0.4s cubic-bezier(0.37, 0, 0.63, 1);
}
.arrow-link:hover .arr { transform: translateX(5px); }
.arrow-link .line {
  transition: width 0.4s cubic-bezier(0.37, 0, 0.63, 1);
}
.arrow-link:hover .line { width: 32px; }

/* ============================================================
   STAT COUNTER ANIMATION
   ============================================================ */
.stat-num {
  animation: countUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes countUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   FLOATING LOGO IN BACKGROUND (decorative)
   ============================================================ */
.bg-logo-ghost {
  position: absolute;
  right: -60px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-serif);
  font-size: 18rem; font-weight: 700;
  color: rgba(255,153,51,0.04);
  line-height: 1; pointer-events: none;
  user-select: none; white-space: nowrap;
}

/* ============================================================
   PAGE TRANSITION — navy curtain fade (NKF-style)
   ============================================================ */
.page-transition-overlay {
  position: fixed; inset: 0;
  background: var(--navy);
  z-index: 9999; pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s cubic-bezier(0.37, 0, 0.63, 1);
}
.page-transition-overlay.show { opacity: 1; }

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--saffron), var(--gold));
  z-index: 1100; width: 0%;
  transition: width 0.15s linear;
}

/* ============================================================
   INSIGHT TAG PULSE ON HOVER
   ============================================================ */
.insight-card .insight-tag {
  transition: background 0.4s cubic-bezier(0.37,0,0.63,1),
              color 0.4s cubic-bezier(0.37,0,0.63,1);
}
.insight-card:hover .insight-tag {
  background: var(--saffron);
  color: var(--navy);
}

/* ============================================================
   MENU OVERLAY — smooth open/close
   ============================================================ */
.menu-overlay {
  transition: opacity 0.55s cubic-bezier(0.37, 0, 0.63, 1),
              visibility 0.55s cubic-bezier(0.37, 0, 0.63, 1);
}

/* ============================================================
   SAFFRON / GOLD SECTION DIVIDER
   ============================================================ */
.sec-divider {
  width: 64px; height: 3px;
  background: linear-gradient(90deg, var(--saffron), var(--gold));
  border-radius: 2px;
  margin: 20px 0 32px;
}
.sec-divider-center { margin: 20px auto 32px; }

/* ============================================================
   FORM SUCCESS STATE
   ============================================================ */
.form-success {
  display: none;
  background: rgba(255,153,51,0.08);
  border: 1px solid var(--saffron-border);
  border-radius: var(--radius-sm);
  padding: 20px 28px;
  color: var(--saffron-hover);
  font-weight: 600; text-align: center;
  animation: fadeIn 0.5s cubic-bezier(0.37,0,0.63,1);
}
.form-success.show { display: block; }

/* ============================================================
   LOADING SKELETON
   ============================================================ */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.8s infinite;
  border-radius: var(--radius-sm);
}

/* ============================================================
   BACK TO TOP BUTTON
   ============================================================ */
.back-to-top {
  position: fixed; bottom: 36px; right: 36px;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--saffron); color: var(--navy);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; z-index: 900;
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.45s cubic-bezier(0.37,0,0.63,1),
              transform 0.45s cubic-bezier(0.37,0,0.63,1),
              background 0.35s cubic-bezier(0.37,0,0.63,1),
              box-shadow 0.35s cubic-bezier(0.37,0,0.63,1);
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(255,153,51,0.35);
  cursor: pointer; border: none;
}
.back-to-top.visible {
  opacity: 1; transform: translateY(0);
  pointer-events: all;
}
.back-to-top:hover {
  background: var(--saffron-hover);
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(255,153,51,0.45);
}

/* ============================================================
   NAVBAR ACTIVE LINK
   ============================================================ */
.menu-nav a.active-page { color: var(--saffron); }

/* ============================================================
   MOBILE REFINEMENTS
   ============================================================ */
@media (max-width: 768px) {
  .menu-overlay { padding: 28px 24px; }
  .menu-nav a { font-size: clamp(1.8rem, 8vw, 3rem); padding: 10px 0; }
}