/* ========== CUSTOM STYLES ========== */

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* ========== NAVBAR ========== */
#navbar {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 30px rgba(107, 33, 168, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(to r, #9333ea, #f59e0b);
  border-radius: 1px;
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-link:hover::after {
  width: 60%;
  left: 20%;
}

/* ========== MOBILE MENU ========== */
#mobileMenu {
  animation: slideDown 0.3s ease;
}

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

#mobileMenu.open {
  display: block;
}

#mobileMenu.hidden {
  display: none;
}

.mobile-link {
  display: block;
}

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

#menuBtn.active #bar2 {
  opacity: 0;
}

#menuBtn.active #bar3 {
  transform: rotate(-45deg) translate(5px, -5px);
  width: 100%;
}

/* ========== HERO FLOATING CARDS ========== */
@keyframes floatCard {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
}

.floating-card {
  animation: floatCard 4s ease-in-out infinite;
}

/* ========== HERO DECORATIVE ========== */
@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(20px, -20px) scale(1.05);
  }
  66% {
    transform: translate(-10px, 10px) scale(0.95);
  }
}

.animate-float {
  animation: float 8s ease-in-out infinite;
}

/* ========== SCROLL DOT ========== */
@keyframes scrollDot {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(12px);
    opacity: 0;
  }
}

.animate-scroll-dot {
  animation: scrollDot 1.5s ease-in-out infinite;
}

/* ========== SCROLL REVEAL ========== */
.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

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

/* ========== CARD HOVER EFFECTS ========== */
.group:hover .group-hover\\:scale-105 {
  transform: scale(1.05);
}

/* ========== CUSTOM SELECTION ========== */
::selection {
  background-color: rgba(147, 51, 234, 0.2);
  color: #581c87;
}

/* ========== FOCUS STYLES ========== */
:focus-visible {
  outline: 2px solid #9333ea;
  outline-offset: 2px;
}

/* ========== BUTTON Ripples ========== */
button, a {
  -webkit-tap-highlight-color: transparent;
}

/* ========== IMAGE LAZY LOADING FALLBACK ========== */
img {
  loading: lazy;
}

/* ========== RESPONSIVE TYPOGRAPHY ========== */
@media (max-width: 640px) {
  .font-serif {
    line-height: 1.15;
  }
}

/* ========== BACK TO TOP ========== */
#backToTop.visible {
  opacity: 1;
  pointer-events: auto;
}

#backToTop:not(.visible) {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#backToTop.visible {
  transform: translateY(0);
}

/* ========== FORM INPUTS ========== */
input:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.15);
}

/* ========== ACCESSIBILITY ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .scroll-reveal {
    opacity: 1;
    transform: none;
  }
}