/* ============================================================
   Greenera Southmark — Animations
   ============================================================ */

/* Scroll reveal — elements get [data-reveal]; .is-visible added by JS */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
[data-reveal="left"] {
  transform: translateX(-36px);
}
[data-reveal="right"] {
  transform: translateX(36px);
}
[data-reveal="zoom"] {
  transform: scale(0.92);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger children */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-stagger].is-visible > * {
  opacity: 1;
  transform: none;
}
[data-stagger].is-visible > *:nth-child(1) { transition-delay: 0.05s; }
[data-stagger].is-visible > *:nth-child(2) { transition-delay: 0.12s; }
[data-stagger].is-visible > *:nth-child(3) { transition-delay: 0.19s; }
[data-stagger].is-visible > *:nth-child(4) { transition-delay: 0.26s; }
[data-stagger].is-visible > *:nth-child(5) { transition-delay: 0.33s; }
[data-stagger].is-visible > *:nth-child(6) { transition-delay: 0.40s; }

/* Hotline pulse */
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(156, 127, 68, 0.55); }
  70% { box-shadow: 0 0 0 16px rgba(156, 127, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(156, 127, 68, 0); }
}

/* Gentle float (hero badges / towers) */
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.float-y {
  animation: float-y 6s ease-in-out infinite;
}

/* Ken-burns for hero bg */
@keyframes ken-burns {
  0% { transform: scale(1.04); }
  100% { transform: scale(1.16); }
}
.ken-burns {
  animation: ken-burns 18s ease-out forwards;
}

/* Partner marquee */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee {
  display: flex;
  width: max-content;
  animation: marquee 26s linear infinite;
}
.marquee:hover {
  animation-play-state: paused;
}

/* Fade up keyframe (modal etc. reuse) */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

/* Shimmer underline for active tab */
.tab-btn {
  position: relative;
}
.tab-btn::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: var(--gold);
  border-radius: 3px;
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}
.tab-btn.active::after {
  width: 70%;
}

/* Smooth fade when switching tab panels (LAVISH / SEREN / IVY) */
[data-tab-panel]:not([hidden]) {
  animation: fade-up 0.45s var(--ease) both;
}

/* FAQ accordion */
.faq-item .faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease);
}
.faq-item .faq-a > div {
  overflow: hidden;
}
.faq-item.open .faq-a {
  grid-template-rows: 1fr;
}

/* NOTE: This is a marketing landing page and the brand explicitly wants the
   animated experience to play for every visitor — including on machines where
   the OS "reduce motion" setting is enabled (which otherwise kills smooth
   scrolling + entrance motion). We therefore intentionally do NOT suppress
   animations under prefers-reduced-motion. Smooth scrolling is driven by JS
   rAF easing (see main.js / slider.js) so it works regardless of that setting. */