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

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

body {
  overflow-x: hidden;
}

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

  .reveal:nth-child(2) { transition-delay: 0.1s; }
  .reveal:nth-child(3) { transition-delay: 0.2s; }
  .reveal:nth-child(4) { transition-delay: 0.3s; }
}

/* ===== Floating animations ===== */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(3deg); }
}

@keyframes float-delay {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(-2deg); }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

.animate-float-delay {
  animation: float-delay 5s ease-in-out infinite 1s;
}

/* ===== Navbar ===== */
#navbar {
  background: transparent;
}

#navbar.scrolled {
  background: rgba(250, 245, 251, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 20px rgba(123, 45, 142, 0.08);
}

#navbar.scrolled .nav-link {
  color: rgb(113, 55, 142);
}

#navbar.scrolled .menu-line {
  background: rgb(113, 55, 142);
}

/* ===== Mobile menu ===== */
.mobile-link {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.2s 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; }

/* ===== Menu line animation ===== */
.menu-line {
  display: block;
}

#menuBtn.active .menu-line:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

#menuBtn.active .menu-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

#menuBtn.active .menu-line:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
  width: 1.25rem;
}

/* ===== Subtle hover underline for nav links ===== */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #F5C518, #7B2D8E);
  border-radius: 1px;
  transition: width 0.3s ease;
}

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

/* ===== Selection color ===== */
::selection {
  background: rgba(123, 45, 142, 0.2);
  color: rgb(61, 23, 72);
}

/* ===== Image aspect ratios ===== */
img {
  max-width: 100%;
  height: auto;
}

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

::-webkit-scrollbar-track {
  background: rgb(250, 245, 251);
}

::-webkit-scrollbar-thumb {
  background: rgb(200, 168, 217);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgb(123, 45, 142);
}