/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { overflow-x: hidden; }

/* ── Navigation link underline effect ── */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 4px;
  right: 4px;
  height: 2px;
  background: #d4a017;
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.nav-link:hover::after {
  transform: scaleX(1);
}

/* ── Mobile link ── */
.mobile-link {
  display: block;
}

/* ── Floating cards ── */
.floating-card {
  animation: float-slow 4s ease-in-out infinite;
}
.floating-card-2 {
  animation: float-medium 3.5s ease-in-out infinite 0.5s;
}
.floating-card-3 {
  animation: float-slow 5s ease-in-out infinite 1s;
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}
@keyframes float-medium {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

/* ── Scroll reveal (below fold only) ── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Stagger children ── */
.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.revealed > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.revealed > *:nth-child(6) { transition-delay: 0.3s; }

@media (prefers-reduced-motion: no-preference) {
  .stagger.revealed > * {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Navbar scroll state ── */
.nav-scrolled {
  box-shadow: 0 1px 20px rgba(14, 31, 51, 0.08);
}

/* ── Selection ── */
::selection {
  background: #d4a017;
  color: #1e3a5f;
}

/* ── Focus visible ── */
:focus-visible {
  outline: 2px solid #d4a017;
  outline-offset: 2px;
}

/* ── Smooth image loading ── */
img {
  display: block;
  max-width: 100%;
}