/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: #1e293b;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Navbar ── */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
#navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(0,0,0,0.07);
}
.navbar-text { transition: color 0.3s ease; }

/* ── Hero Blobs ── */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: blobFloat 8s ease-in-out infinite;
}
.blob-1 {
  width: 400px; height: 400px;
  background: #99f6e4;
  top: -100px; right: -50px;
  animation-delay: 0s;
}
.blob-2 {
  width: 300px; height: 300px;
  background: #fde68a;
  bottom: 10%; left: 5%;
  animation-delay: -3s;
}
.blob-3 {
  width: 200px; height: 200px;
  background: #a5f3fc;
  top: 40%; right: 30%;
  animation-delay: -5s;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.05); }
  66% { transform: translate(-15px, 15px) scale(0.95); }
}

/* ── Floating Cards ── */
.floating-card {
  animation: float 4s ease-in-out infinite;
}
.card-1 { animation-delay: 0s; }
.card-2 { animation-delay: -1.3s; }
.card-3 { animation-delay: -2.6s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ── Reveal Animations (below-fold only) ── */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #94a3b8; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }