/* ============================================
   TIC ENGENHARIA E AUTOMAÇÃO
   Componentes - Header, Footer, Preloader
   ============================================ */

/* ------------------------------------------
   PRELOADER
   ------------------------------------------ */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--tic-grafite-dark) 0%, var(--tic-grafite) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: var(--z-preloader);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-logo {
  position: relative;
  width: 150px;
  height: 150px;
}

.preloader-gear {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  animation: rotate-gear 3s linear infinite;
}

.preloader-gear svg {
  width: 100%;
  height: 100%;
  color: var(--tic-laranja);
}

.preloader-circuit {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  animation: pulse-circuit 2s ease-in-out infinite;
}

.preloader-circuit svg {
  width: 100%;
  height: 100%;
  color: var(--tic-laranja-light);
  opacity: 0.5;
}

.preloader-text {
  margin-top: var(--space-5);
  font-family: var(--font-titulo);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--tic-branco);
  letter-spacing: 0.2em;
  animation: fade-pulse 2s ease-in-out infinite;
}

.preloader-bar {
  width: 200px;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  margin-top: var(--space-4);
  overflow: hidden;
}

.preloader-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--tic-laranja), var(--tic-laranja-light));
  border-radius: var(--radius-full);
  animation: progress-bar 2.5s ease-out forwards;
}

@keyframes rotate-gear {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse-circuit {
  0%, 100% { opacity: 0.3; transform: scale(0.95); }
  50% { opacity: 0.6; transform: scale(1.05); }
}

@keyframes fade-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes progress-bar {
  from { width: 0%; }
  to { width: 100%; }
}

/* ------------------------------------------
   HEADER
   ------------------------------------------ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  padding: var(--space-3) 0;
}

.header.scrolled {
  background-color: var(--tic-branco);
  box-shadow: var(--shadow-md);
  padding: var(--space-2) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
}

.header-logo img {
  height: 50px;
  width: auto;
  transition: height var(--transition-base);
}

.header.scrolled .header-logo img {
  height: 40px;
}

/* Navegação Desktop */
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-link {
  font-family: var(--font-titulo);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--tic-branco);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-base);
}

.header.scrolled .nav-link {
  color: var(--tic-grafite);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--tic-laranja);
  transition: width var(--transition-base);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--tic-laranja);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-dropdown-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background-color: var(--tic-branco);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: block;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-titulo);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--tic-grafite);
  transition: all var(--transition-base);
}

.nav-dropdown-item:hover {
  background-color: var(--tic-cinza);
  color: var(--tic-laranja);
}

.nav-dropdown-item strong {
  display: block;
  margin-bottom: 2px;
}

.nav-dropdown-item span {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--tic-cinza-escuro);
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Menu Mobile Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-2);
  z-index: var(--z-fixed);
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--tic-branco);
  transition: all var(--transition-base);
}

.header.scrolled .menu-toggle span {
  background-color: var(--tic-grafite);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Menu Mobile */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--tic-branco);
  z-index: var(--z-modal);
  padding: var(--space-6) var(--space-4);
  transition: right var(--transition-base);
  overflow-y: auto;
}

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

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.mobile-menu-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--tic-cinza);
}

.mobile-menu-close svg {
  width: 24px;
  height: 24px;
  color: var(--tic-grafite);
}

.mobile-nav {
  margin-top: var(--space-6);
}

.mobile-nav-item {
  border-bottom: 1px solid var(--tic-cinza-medio);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-4) 0;
  font-family: var(--font-titulo);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--tic-grafite);
}

.mobile-nav-link:hover {
  color: var(--tic-laranja);
}

.mobile-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-dropdown-toggle svg {
  transition: transform var(--transition-base);
}

.mobile-dropdown-toggle.active svg {
  transform: rotate(180deg);
}

.mobile-dropdown-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.mobile-dropdown-menu.active {
  max-height: 500px;
}

.mobile-dropdown-link {
  display: block;
  padding: var(--space-3) 0 var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--tic-grafite-light);
}

.mobile-dropdown-link:hover {
  color: var(--tic-laranja);
}

.mobile-cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ------------------------------------------
   FOOTER
   ------------------------------------------ */
.footer {
  background-color: var(--tic-grafite-dark);
  color: var(--tic-branco);
  padding-top: var(--space-7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  height: 50px;
  width: auto;
  margin-bottom: var(--space-4);
}

.footer-description {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-4);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.footer-social-link:hover {
  background-color: var(--tic-laranja);
  transform: translateY(-3px);
}

.footer-social-link svg {
  width: 20px;
  height: 20px;
  color: var(--tic-branco);
}

.footer-title {
  font-family: var(--font-titulo);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--tic-branco);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--tic-laranja);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--tic-laranja);
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a:hover {
  color: var(--tic-laranja);
}

/* ------------------------------------------
   RESPONSIVIDADE
   ------------------------------------------ */
@media (max-width: 1024px) {
  .header-nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .header-cta .btn-secondary {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-brand {
    grid-column: span 2;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .mobile-menu {
    max-width: 100%;
  }
  
  .header-logo img {
    height: 40px;
  }
}