/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ── Nav ── */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#navbar.scrolled {
  background: rgba(255, 253, 247, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(6, 95, 70, 0.08), 0 4px 24px rgba(6, 95, 70, 0.06);
}
.nav-link { transition: background 0.2s ease, color 0.2s ease; }

/* ── Hero Blobs ── */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: blobFloat 12s ease-in-out infinite;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.3), transparent 70%);
  top: -10%; left: -5%;
  animation-delay: 0s;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(110, 231, 183, 0.2), transparent 70%);
  bottom: -5%; right: 10%;
  animation-delay: -4s;
}
.blob-3 {
  width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.25), transparent 70%);
  top: 40%; right: 30%;
  animation-delay: -8s;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

/* ── Service Cards ── */
.service-card {
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

/* ── Step Cards ── */
.step-card {
  transition: transform 0.3s ease;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ── Mobile Menu ── */
#mobile-menu {
  animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Utility ── */
.mobile-nav-link { transition: background 0.2s ease; }