/* ==========================================================
   Treta Developers — Scroll & Entrance Animations
   Intersection Observer based reveal system
   ========================================================== */

/* ── Reveal defaults (before animation) ────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-fade {
  opacity: 0;
  transition: opacity 0.9s ease;
}

/* ── Revealed state (animation triggered) ──────────────────── */
.revealed {
  opacity: 1 !important;
  transform: none !important;
}

/* ── Stagger delays for children ───────────────────────────── */
.stagger-children > * { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.stagger-children.revealed > *:nth-child(1) { transition-delay: 0s;    opacity: 1; transform: none; }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.1s;  opacity: 1; transform: none; }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.2s;  opacity: 1; transform: none; }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.3s;  opacity: 1; transform: none; }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.4s;  opacity: 1; transform: none; }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.5s;  opacity: 1; transform: none; }

/* ── Hero text animations ───────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Hero entrance sequence */
.hero-tag    { animation: fadeInDown 0.8s ease 0.3s both; }
.hero h1     { animation: fadeInUp 1s ease 0.5s both; }
.hero-sub    { animation: fadeInUp 0.8s ease 0.8s both; }
.hero-btns   { animation: fadeInUp 0.8s ease 1s both; }
.hero-stats  { animation: fadeIn 1s ease 1.3s both; }
.hero-scroll { animation: fadeIn 1s ease 1.8s both; }

/* ── Counter animation ──────────────────────────────────────── */
.counter { display: inline-block; }

/* ── Shimmer (skeleton loading) ─────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--clr-surface) 25%, var(--clr-bg-alt) 50%, var(--clr-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Page transition ────────────────────────────────────────── */
.page-transition {
  animation: pageEnter 0.5s ease both;
}
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Gold shimmer text ──────────────────────────────────────── */
.text-shimmer {
  background: linear-gradient(90deg, #C9A84C 0%, #E2C97E 40%, #C9A84C 60%, #A3832A 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: text-shimmer 4s linear infinite;
}
@keyframes text-shimmer {
  to { background-position: 200% center; }
}

/* ── Floating particles (hero bg) ────────────────────────────── */
.particle {
  position: absolute; border-radius: 50%;
  background: rgba(201,168,76,0.15);
  animation: float-particle linear infinite;
  pointer-events: none;
}
@keyframes float-particle {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-20px) scale(1); opacity: 0; }
}

/* ── Property card hover glow ────────────────────────────────── */
.property-card::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(201,168,76,0.05), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.property-card:hover::after { opacity: 1; }

/* ── Nav underline animation overrides ───────────────────────── */
.nav-links a {
  transition: color 0.2s ease;
}

/* ── Scroll progress bar ─────────────────────────────────────── */
#scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 2000;
  height: 3px;
  background: var(--grad-gold);
  width: 0%;
  transition: width 0.1s linear;
}

/* ── Back to top button ──────────────────────────────────────── */
#back-to-top {
  position: fixed; bottom: 5.5rem; right: 2rem; z-index: 500;
  width: 44px; height: 44px;
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--clr-gold);
  box-shadow: var(--shadow-md);
  opacity: 0; pointer-events: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
}
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { background: var(--clr-gold); color: #fff; transform: translateY(-4px); }

/* ── Hero slider dots ────────────────────────────────────────── */
.hero-dots {
  position: absolute; bottom: 4rem; left: 50%; transform: translateX(-50%);
  display: flex; gap: 0.5rem; z-index: 2;
}
.hero-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: all 0.3s ease; cursor: pointer;
}
.hero-dot.active {
  width: 24px; border-radius: 4px;
  background: var(--clr-gold);
}