/* ========== BASE & RESET ========== */
*, *::before, *::after {
  box-sizing: border-box;
}

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

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

::selection {
  background: rgba(212, 160, 23, 0.3);
  color: #EDD8F5;
}

/* ========== ANIMATIONS ========== */
@keyframes pulse-slow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes scroll-down {
  0% { top: -16px; opacity: 0; }
  50% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

.animate-spin-slow {
  animation: spin-slow 20s linear infinite;
}

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

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

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

#navbar.scrolled {
  background: rgba(10, 5, 12, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(155, 59, 176, 0.15);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

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

.mobile-link {
  animation: mobile-link-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.mobile-link:nth-child(1) { animation-delay: 0.05s; }
.mobile-link:nth-child(2) { animation-delay: 0.1s; }
.mobile-link:nth-child(3) { animation-delay: 0.15s; }
.mobile-link:nth-child(4) { animation-delay: 0.2s; }

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

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

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

/* ========== HERO ========== */
#hero {
  position: relative;
}

/* ========== CARD HOVER EFFECTS ========== */
.group:hover .group-hover\:scale-110 {
  transform: scale(1.1);
}

/* ========== FORM STYLES ========== */
input:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(212, 160, 23, 0.1);
}

/* ========== BACK TO TOP ========== */
#back-to-top.show {
  opacity: 1;
  pointer-events: all;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 640px) {
  .font-serif {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
}

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