/* ─── Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body { -webkit-font-smoothing: antialiased; }

/* ─── Navigation ────────────────────────────────────── */
#nav { background: transparent; transition: background 220ms ease, box-shadow 220ms ease; }

#nav.scrolled {
  background: rgba(13, 31, 45, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* ─── Scroll-reveal ─────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .float-card, .float-card-delay, .orb, .orb-reverse {
    animation: none; opacity: 1; transform: none; transition: none;
  }
}

/* ─── Buttons ───────────────────────────────────────── */
.btn { cursor: pointer; transition: background-color 150ms ease, border-color 150ms ease, transform 100ms ease, box-shadow 150ms ease; }
.btn:active { transform: scale(0.97); }

/* ─── Gold CTA shimmer ──────────────────────────────── */
.btn-gold {
  background: linear-gradient(105deg, #EAB308 0%, #EAB308 38%, #FDE68A 50%, #EAB308 62%, #EAB308 100%);
  background-size: 250% auto;
  color: #0D1F2D;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-gold { animation: shimmer 2.8s linear infinite; }
}

@keyframes shimmer {
  to { background-position: 250% center; }
}

@media (hover: hover) {
  .btn-gold:hover { box-shadow: 0 0 24px rgba(234, 179, 8, 0.45); }
}

/* ─── Floating hero cards ───────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
.float-card       { animation: float 4.5s ease-in-out infinite; }
.float-card-delay { animation: float 4.5s ease-in-out 1.2s infinite; }

/* ─── Background orbs ───────────────────────────────── */
@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(40px, -30px) scale(1.06); }
  66%       { transform: translate(-25px, 15px) scale(0.96); }
}
@keyframes orb-drift-reverse {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(-35px, 25px) scale(0.95); }
  66%       { transform: translate(30px, -20px) scale(1.04); }
}

.orb         { animation: orb-drift         9s ease-in-out infinite; pointer-events: none; }
.orb-reverse { animation: orb-drift-reverse 11s ease-in-out infinite; pointer-events: none; }

/* ─── Teal glow on cards ────────────────────────────── */
@media (hover: hover) {
  .card-hover:hover {
    box-shadow: 0 0 0 1px rgba(20, 184, 166, 0.25), 0 8px 32px rgba(20, 184, 166, 0.08);
    transform: translateY(-2px);
  }
  .link-arrow:hover svg { transform: translateX(3px); }
}

.link-arrow svg { transition: transform 150ms ease; }
.card-hover     { transition: box-shadow 220ms ease, transform 220ms ease; }

/* ─── Pulse ring in hero illustration ───────────────── */
@keyframes ping-slow {
  0%   { transform: scale(1);    opacity: 0.3; }
  80%  { transform: scale(1.55); opacity: 0; }
  100% { transform: scale(1.55); opacity: 0; }
}
.ping-slow { animation: ping-slow 2.8s cubic-bezier(0, 0, 0.2, 1) infinite; }

/* ─── Counter number ────────────────────────────────── */
.tabular { font-variant-numeric: tabular-nums; }

/* ─── Hover only on non-touch ───────────────────────── */
@media (hover: hover) {
  .nav-link:hover { color: #F0FDF4; }
}

/* ─── Section divider ───────────────────────────────── */
.section-divider {
  width: 40px; height: 3px;
  background: linear-gradient(90deg, #14B8A6, #EAB308);
  border-radius: 2px;
}

/* ─── Typography helpers ────────────────────────────── */
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Max comfortable line length */
.prose-width { max-width: 60ch; }

/* ─── Gradient text ─────────────────────────────────── */
.text-gradient {
  background: linear-gradient(135deg, #14B8A6 0%, #5EEAD4 50%, #EAB308 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Teal glow icon ────────────────────────────────── */
.icon-glow {
  box-shadow: 0 0 16px rgba(20, 184, 166, 0.25);
}

/* ─── Step number glow ──────────────────────────────── */
.step-num {
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, rgba(20,184,166,0.3) 0%, rgba(234,179,8,0.15) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}