/* ===== Base & Typography ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
}

::selection {
  background: rgba(20, 184, 166, 0.3);
  color: white;
}

/* ===== Navbar ===== */
#navbar {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

#navbar.scrolled {
  background: rgba(10, 15, 26, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2dd4bf, #14b8a6);
  border-radius: 1px;
  transition: width 0.3s ease;
}

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

.nav-link:hover {
  color: white;
}

/* ===== Product Cards ===== */
.product-card {
  transform: translateY(0);
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(45, 212, 191, 0.15);
}

/* ===== Why Us Cards ===== */
.why-card {
  transform: translateY(0);
  transition: transform 0.35s ease, background 0.35s ease;
}

.why-card:hover {
  transform: translateY(-4px);
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .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; }
}

/* Fallback: ensure content is visible even without JS */
.reveal {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Mobile menu ===== */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-link {
  display: block;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0a0f1a;
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* ===== Focus styles ===== */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid #2dd4bf;
  outline-offset: 2px;
}

/* ===== Responsive tweaks ===== */
@media (max-width: 640px) {
  #hero h1 {
    font-size: 2.75rem;
    line-height: 1.1;
  }

  .floating-badge {
    position: relative !important;
    bottom: auto !important;
    left: auto !important;
    margin-top: 1rem;
    max-width: 100%;
  }
}