html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  overflow-x: hidden;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in-down {
  animation: fade-in-down 0.6s ease-out both;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  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; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .animate-fade-in-down { animation: none; opacity: 1; }
}

.feature-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.screenshot-card img {
  transition: transform 0.4s ease;
}

.screenshot-card:hover img {
  transform: scale(1.03);
}

.pricing-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-3px);
}

.step-item {
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.step-item.visible {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  .step-item { opacity: 1; transform: none; }
}

.faq-item .faq-chevron {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-item.active .faq-answer {
  max-height: 400px;
}

#mobile-menu {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

#mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}

#mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#mobile-menu-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

::selection {
  background-color: rgba(56, 189, 248, 0.2);
  color: #0F172A;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(56, 189, 248, 0.4);
  outline-offset: 2px;
}

#download-btn.loading,
.download-btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

#download-btn.error,
.download-btn.error {
  background-color: #ef4444;
}

.version-text {
  min-height: 1.25rem;
}