/* ============================================
   Dancy Nutrition — Custom Styles
   ============================================ */

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

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

body {
  margin: 0;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: rgba(232, 98, 74, 0.15);
  color: #1c1c24;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f7f7f8;
}
::-webkit-scrollbar-thumb {
  background: #d6d6d8;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #b0b0b5;
}

/* Animation keyframes */
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

.animate-scroll-line {
  animation: scrollLine 1.5s ease-in-out infinite;
}

/* Scroll-reveal base styles */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* Reduced motion */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Navbar transition */
#navbar {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
  background-color: rgba(247, 247, 248, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(28, 28, 36, 0.08);
}

/* Nav links underline animation */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: #e8624a;
  transition: width 0.3s ease;
}

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

/* Mobile menu */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu:not(.open) {
  opacity: 0;
  pointer-events: none;
}

.mobile-link {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu:not(.open) .mobile-link {
  opacity: 0;
  transform: translateY(12px);
}

/* Hamburger animation */
#mobile-menu-btn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
  opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
  width: 1.25rem;
  transform: rotate(-45deg) translate(3px, -3px);
}

/* Floating cards animation */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes float-delayed {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

@media (prefers-reduced-motion: no-preference) {
  .floating-card-1 {
    animation: float 4s ease-in-out infinite;
  }
  .floating-card-2 {
    animation: float-delayed 5s ease-in-out infinite 0.5s;
  }
  .floating-card-3 {
    animation: float 4.5s ease-in-out infinite 1s;
  }
}

/* Image hover zoom wrapper */
.group img {
  will-change: transform;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #e8624a;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Smooth image loading */
img {
  opacity: 1;
  transition: opacity 0.3s ease;
}

img[data-src] {
  opacity: 0;
}

/* Subtle line decorations */
.divider-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, #e8624a, transparent);
}

/* Card hover lift */
.group {
  will-change: transform;
}