/* ============================================
   Adora Nails & Spa — Custom Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: rgba(13, 148, 136, 0.2);
  color: #1e293b;
}

/* ============================================
   Navbar
   ============================================ */
.nav-fixed {
  background: rgba(254, 253, 248, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-fixed.scrolled {
  background: rgba(254, 253, 248, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

/* ============================================
   Mobile Menu
   ============================================ */
#mobileMenu.open {
  opacity: 1;
  pointer-events: all;
}

#mobileMenu.closed {
  opacity: 0;
  pointer-events: none;
}

.mobile-link {
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.3s ease;
}

#mobileMenu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Hamburger */
#bar1 {
  transform-origin: center;
}
#bar2 {
  transform-origin: center;
}
#bar3 {
  transform-origin: center;
}

.menu-active #bar1 {
  transform: translateY(4px) rotate(45deg);
}
.menu-active #bar2 {
  opacity: 0;
  transform: scaleX(0);
}
.menu-active #bar3 {
  transform: translateY(-4px) rotate(-45deg);
}

/* ============================================
   Scroll Reveal (Progressive Enhancement)
   ============================================ */
.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Only animate when JS is enabled AND user prefers motion */
@media (prefers-reduced-motion: no-preference) {
  .js-enabled .scroll-reveal {
    opacity: 0;
    transform: translateY(32px);
  }

  .js-enabled .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Reduced motion: keep everything visible */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .scroll-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   Smooth image loading
   ============================================ */
img {
  background-color: rgba(0, 0, 0, 0.03);
}

/* ============================================
   Focus styles
   ============================================ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #0d9488;
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============================================
   Utility animations
   ============================================ */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

/* ============================================
   Responsive tweaks
   ============================================ */
@media (max-width: 640px) {
  html {
    scroll-padding-top: 72px;
  }
}

@media (min-width: 1024px) {
  /* Subtle parallax on hero decorative elements */
  .hero-deco {
    will-change: transform;
  }
}