/* ============================================================
   ANIMATIONS — Keyframes and scroll-reveal classes
   ============================================================ */

/* ─── Keyframes ───────────────────────────────────────────── */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes heroPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

@keyframes pingOut {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

@keyframes barGrow {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes floatBob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes borderTrace {
  0%   { clip-path: inset(0 100% 0 0); }
  25%  { clip-path: inset(0 0 0 0); }
  50%  { clip-path: inset(0 0 0 0); }
  75%  { clip-path: inset(0 0 100% 0); }
  100% { clip-path: inset(0 100% 0 0); }
}

/* ─── Scroll reveal system ─────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for child elements */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

.reveal-stagger.visible > *:nth-child(1)  { opacity: 1; transform: translateY(0); transition-delay: 0ms;  }
.reveal-stagger.visible > *:nth-child(2)  { opacity: 1; transform: translateY(0); transition-delay: 80ms; }
.reveal-stagger.visible > *:nth-child(3)  { opacity: 1; transform: translateY(0); transition-delay: 160ms; }
.reveal-stagger.visible > *:nth-child(4)  { opacity: 1; transform: translateY(0); transition-delay: 240ms; }
.reveal-stagger.visible > *:nth-child(5)  { opacity: 1; transform: translateY(0); transition-delay: 320ms; }
.reveal-stagger.visible > *:nth-child(6)  { opacity: 1; transform: translateY(0); transition-delay: 400ms; }

/* Fade only (no translate) */
.reveal-fade {
  opacity: 0;
  transition: opacity 0.8s var(--ease-out);
}

.reveal-fade.visible {
  opacity: 1;
}

/* Scale reveal */
.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ─── Accent line shimmer on hover ─────────────────────────── */
.shimmer-line {
  position: relative;
  overflow: hidden;
}

.shimmer-line::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--accent) 40%,
    var(--accent-bright) 60%,
    transparent 100%
  );
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity var(--transition-base);
  animation: shimmer 2s linear infinite;
}

.shimmer-line:hover::after {
  opacity: 1;
}

/* ─── Gold border top decoration ────────────────────────────── */
.gold-top {
  position: relative;
}

.gold-top::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent) 40%, var(--accent-bright) 60%, transparent);
  opacity: 0.7;
}