/* ============================================
   LibertyX Bitcoin ATM — Custom Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background-color: rgba(52, 212, 176, 0.3);
  color: #f0fdf8;
}

/* Focus visible */
:focus-visible {
  outline: 2px solid #34d4b0;
  outline-offset: 2px;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

.animate-bounce-slow {
  animation: bounceSlow 2s ease-in-out infinite;
}

/* ============================================
   Scroll Reveal
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
  .section-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  }

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

/* Default: always visible (progressive enhancement) */
.section-reveal {
  opacity: 1;
  transform: none;
  transition: none;
}

/* ============================================
   Navigation
   ============================================ */
#site-header {
  background: transparent;
  transition: background-color 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#site-header.scrolled {
  background-color: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(52, 212, 176, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #34d4b0;
  transition: width 0.3s ease;
}

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

/* Mobile menu */
#mobile-menu {
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

.mobile-nav-link {
  position: relative;
  padding: 0.5rem 0;
}

/* Hamburger animation */
#menu-toggle.active #bar1 {
  transform: rotate(45deg) translate(5px, 5px);
}

#menu-toggle.active #bar2 {
  opacity: 0;
}

#menu-toggle.active #bar3 {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-toggle {
  cursor: pointer;
}

.faq-toggle[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              padding 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-content.open {
  max-height: 200px;
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0a1628;
}

::-webkit-scrollbar-thumb {
  background: #1e4f94;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #34d4b0;
}

/* ============================================
   Responsive adjustments
   ============================================ */
@media (max-width: 767px) {
  .font-serif {
    word-spacing: -0.02em;
  }
}