/* ============================================================
   JCI Ottawa V3 — UX Enhancement Layer
   Zero design changes. Pure experience improvements.
   ============================================================ */

/* PAGE TRANSITION OVERLAY */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  background: #131640;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.page-transition-overlay.fade-out { opacity: 0; }
.page-transition-overlay.fade-in  { opacity: 1; }

/* SCROLL PROGRESS BAR */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #29ABE2, #3DBFA6);
  z-index: 1001;
  width: 0%;
  transition: width 0.05s linear;
  border-radius: 0 2px 2px 0;
}

/* BACK-TO-TOP BUTTON */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: #1B1F4E;
  border: 2px solid rgba(41,171,226,.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 500;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease, border-color 0.2s ease;
  box-shadow: 0 4px 20px rgba(27,31,78,.25);
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover {
  background: #29ABE2;
  border-color: #29ABE2;
}
.back-to-top svg {
  width: 18px;
  height: 18px;
  color: #fff;
  flex-shrink: 0;
}

/* ENHANCED SCROLL REVEAL */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }

/* STAGGERED GRID CHILDREN */
.areas__grid      > .area-card:nth-child(1)    { transition-delay: 0.05s; }
.areas__grid      > .area-card:nth-child(2)    { transition-delay: 0.12s; }
.areas__grid      > .area-card:nth-child(3)    { transition-delay: 0.19s; }
.areas__grid      > .area-card:nth-child(4)    { transition-delay: 0.26s; }
.programs__grid   > .program-card:nth-child(1) { transition-delay: 0.05s; }
.programs__grid   > .program-card:nth-child(2) { transition-delay: 0.13s; }
.programs__grid   > .program-card:nth-child(3) { transition-delay: 0.21s; }
.board-prev__grid > .board-prev-card:nth-child(1) { transition-delay: 0.04s; }
.board-prev__grid > .board-prev-card:nth-child(2) { transition-delay: 0.1s; }
.board-prev__grid > .board-prev-card:nth-child(3) { transition-delay: 0.16s; }
.board-prev__grid > .board-prev-card:nth-child(4) { transition-delay: 0.22s; }
.board-prev__grid > .board-prev-card:nth-child(5) { transition-delay: 0.04s; }
.board-prev__grid > .board-prev-card:nth-child(6) { transition-delay: 0.10s; }
.board-prev__grid > .board-prev-card:nth-child(7) { transition-delay: 0.16s; }
.social-grid      > .social-card:nth-child(1)  { transition-delay: 0.05s; }
.social-grid      > .social-card:nth-child(2)  { transition-delay: 0.13s; }
.social-grid      > .social-card:nth-child(3)  { transition-delay: 0.21s; }
.upcoming__grid   > .ev-card:nth-child(1)      { transition-delay: 0.05s; }
.upcoming__grid   > .ev-card:nth-child(2)      { transition-delay: 0.13s; }
.upcoming__grid   > .ev-card:nth-child(3)      { transition-delay: 0.21s; }

/* ACTIVE NAV LINK */
.nav__links a.active {
  color: #29ABE2;
  background: rgba(41,171,226,.1);
}
.nav__mobile a.active {
  color: #29ABE2;
  background: rgba(41,171,226,.08);
}

/* SMOOTH NAV HEIGHT TRANSITION */
.nav {
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

/* CARD LIFT — extra polish on program and event cards */
.program-card,
.ev-card,
.area-card,
.board-prev-card,
.social-card,
.partner-card {
  will-change: transform;
}

/* TOOLTIP on back-to-top */
.back-to-top::before {
  content: 'Back to top';
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: #1B1F4E;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}
.back-to-top:hover::before { opacity: 1; }

/* FOCUS VISIBLE RING (accessibility) */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #29ABE2;
  outline-offset: 3px;
  border-radius: 6px;
}

/* PAGE-IN ANIMATION */
@keyframes page-enter {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.page-enter {
  animation: page-enter 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* HERO STATS COUNT-UP NUMBER */
.hero__stat-num {
  font-variant-numeric: tabular-nums;
}

/* MOBILE MENU SLIDE-DOWN */
.nav__mobile {
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  display: flex !important;
  pointer-events: none;
  visibility: hidden;
}
.nav__mobile.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

/* HAMBURGER ANIMATE */
.nav__hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.nav__hamburger span {
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* IMAGE LAZY LOAD FADE */
img.lazy {
  opacity: 0;
  transition: opacity 0.5s ease;
}
img.lazy.loaded {
  opacity: 1;
}

/* 9-ITEM NAV — wider inner container + tighter link sizing */
.nav__inner { max-width: 1280px !important; }
.nav__links a { font-size: 0.73rem !important; padding: 6px 9px !important; }

/* FORCE NAV CTA HIDDEN ON MOBILE — overrides any inline display:flex */
@media (max-width: 768px) {
  .nav__cta { display: none !important; }
  .nav__links { display: none !important; }
}

/* REDUCED MOTION OVERRIDES */
@media (prefers-reduced-motion: reduce) {
  .fade-up,
  .page-transition-overlay,
  .back-to-top,
  .scroll-progress,
  .nav__mobile,
  img.lazy {
    transition: none !important;
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }
}