/* ==========================================================================
   EMDURB Modern — Animations
   Micro-animações, transições suaves, mobile menu
   ========================================================================== */

/* ---- Animação de entrada (fade-in + slide-up) ---- */
.animate-target {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-target.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Delay escalonado para grupos */
.animate-target:nth-child(2) { transition-delay: 80ms; }
.animate-target:nth-child(3) { transition-delay: 160ms; }
.animate-target:nth-child(4) { transition-delay: 240ms; }
.animate-target:nth-child(5) { transition-delay: 320ms; }
.animate-target:nth-child(6) { transition-delay: 400ms; }
.animate-target:nth-child(7) { transition-delay: 480ms; }
.animate-target:nth-child(8) { transition-delay: 560ms; }

/* ---- will-change para performance ---- */
.blog-item .blog-item-wrap,
li.blog-item,
.sf-icon-box,
.emdurb-director-card,
.emdurb-doc-card,
.emdurb-contact-card,
.sidebar .widget,
#back-to-top {
  will-change: transform;
}

/* ---- Hamburger menu ---- */
.emdurb-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  z-index: 1001;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.emdurb-hamburger:hover {
  background: var(--color-gray-100);
}

.emdurb-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-blue-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
  position: relative;
}

.emdurb-hamburger span + span {
  margin-top: 5px;
}

/* Hamburger → X */
.emdurb-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.emdurb-hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}
.emdurb-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* ---- Mobile menu overlay ---- */
.emdurb-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 340px;
  height: 100vh;
  background: var(--color-white);
  box-shadow: var(--shadow-2xl);
  z-index: 10000;
  transition: right var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  padding: var(--spacing-16) var(--spacing-6) var(--spacing-6);
}

.emdurb-mobile-menu.active {
  right: 0;
}

.emdurb-mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  backdrop-filter: blur(4px);
}

.emdurb-mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.emdurb-mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.emdurb-mobile-menu ul li {
  border-bottom: 1px solid var(--color-gray-200);
}

.emdurb-mobile-menu ul li a {
  display: block;
  padding: var(--spacing-4) var(--spacing-5);
  color: var(--color-gray-800);
  font-size: var(--font-size-base);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.emdurb-mobile-menu ul li a:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding-left: var(--spacing-8);
}

/* ---- Keyframes ---- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.skeleton-loading {
  background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ---- Prefers reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .animate-target {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Responsividade ---- */
@media (max-width: 768px) {
  .emdurb-hamburger {
    display: flex;
  }
}