/* ── Base & Utilities ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { min-height: 100vh; }

/* ── Scroll Animations ────────────────────────────────────────────── */
.scroll-anim {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-anim {
    opacity: 0;
    transform: translateY(24px);
  }
  .scroll-anim.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* stagger children */
.scroll-anim[data-delay="1"] { transition-delay: 0.1s; }
.scroll-anim[data-delay="2"] { transition-delay: 0.2s; }
.scroll-anim[data-delay="3"] { transition-delay: 0.3s; }
.scroll-anim[data-delay="4"] { transition-delay: 0.4s; }

/* ── Floating Cards ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  @keyframes float-slow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  @keyframes float-medium {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }
  @keyframes float-fast {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }

  .animate-float-slow { animation: float-slow 4s ease-in-out infinite; }
  .animate-float-medium { animation: float-medium 3.5s ease-in-out infinite; }
  .animate-float-fast { animation: float-fast 3s ease-in-out infinite; }
}

/* ── Navbar scroll state ──────────────────────────────────────────── */
.nav.scrolled {
  box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.04);
}

/* ── Form focus ring custom ───────────────────────────────────────── */
input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

/* ── Selection color ──────────────────────────────────────────────── */
::selection {
  background: rgba(13, 148, 136, 0.2);
  color: #0f766e;
}