/* ── Base & Utilities ─────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  background: #86efac;
  color: #044a38;
}

/* ── Nav ──────────────────────────────────────────────────────────── */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #0D7A5F;
  transition: width 0.25s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ── Mobile menu ─────────────────────────────────────────────────── */
.mobile-nav-link {
  position: relative;
  display: block;
}

/* ── Service cards ────────────────────────────────────────────────── */
.service-card {
  cursor: default;
}

/* ── Floating animations ─────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}

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

.animate-float {
  animation: float 4s ease-in-out infinite;
}

.animate-float-delayed {
  animation: float-delayed 4.5s ease-in-out infinite;
  animation-delay: 1s;
}

/* ── Scroll reveal ───────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── Header scroll state ─────────────────────────────────────────── */
header.scrolled {
  background: rgba(253, 252, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(13, 122, 95, 0.08);
}

/* ── Responsive tweaks ───────────────────────────────────────────── */
@media (max-width: 640px) {
  html {
    scroll-padding-top: 72px;
  }
}