/*--------------------------------------------------------------
# Variáveis e Estilos Base
--------------------------------------------------------------*/
:root {
  --font-primary: "Poppins", sans-serif;
  --color-azul-petroleo-dark: #001219;
  --color-azul-petroleo-medium: #00253A;
  --color-ciano-accent: #00A9B5;
  --color-branco: #FFFFFF;
  --color-texto: #E0E0E0;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-azul-petroleo-dark);
  color: var(--color-texto);
}

a {
  color: var(--color-ciano-accent);
  text-decoration: none;
  transition: 0.3s;
}

a:hover {
  color: var(--color-branco);
}

h1, h2, h3 {
  font-family: var(--font-primary);
  color: var(--color-branco);
  font-weight: 700;
}

/*--------------------------------------------------------------
# Preloader
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-azul-petroleo-dark);
  display: flex;
  justify-content: center;
  align-items: center;
}

#preloader .preloader-container {
  text-align: center;
}

#preloader .preloader-animation {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 4px solid var(--color-ciano-accent);
  border-top-color: transparent;
  animation: preloader-spin 1s linear infinite;
  margin: 0 auto;
}

#preloader .preloader-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-branco);
  margin-top: 20px;
}

#preloader .preloader-logo span {
  color: var(--color-ciano-accent);
}

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

/*--------------------------------------------------------------
# Header
--------------------------------------------------------------*/
.header {
  transition: all 0.5s;
  z-index: 997;
  padding: 20px 0;
  background: rgba(0, 18, 25, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.header .logo h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-branco);
  margin: 0;
}

.header .logo span {
  color: var(--color-ciano-accent);
}

.btn-return {
  background: transparent;
  border: 2px solid var(--color-ciano-accent);
  color: var(--color-ciano-accent);
  font-weight: 600;
  border-radius: 50px;
  padding: 8px 25px;
  transition: 0.3s;
  display: flex;
  align-items: center;
}

.btn-return:hover {
  background: var(--color-ciano-accent);
  color: var(--color-branco);
}

.btn-return i {
  margin-right: 8px;
  font-size: 20px;
}

/*--------------------------------------------------------------
# Scrollbar
--------------------------------------------------------------*/
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--color-azul-petroleo-dark);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-ciano-accent);
  border-radius: 10px;
  border: 3px solid var(--color-azul-petroleo-dark);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-prata-accent);
}

/*--------------------------------------------------------------
# Título da Página
--------------------------------------------------------------*/
.page-title-section {
  padding: 100px 0 60px 0;
  margin-top: 85px;
  text-align: center;
  background-color: var(--color-azul-petroleo-medium);
}

.page-title-section h1 {
  font-size: 42px;
  font-weight: 800;
  text-shadow: 0 0 8px rgba(0, 169, 181, 0.3);
}

/*--------------------------------------------------------------
# Detalhe do Serviço
--------------------------------------------------------------*/
.service-detail {
  padding: 80px 0;
}

.service-item {
  padding: 40px;
  border-radius: 20px;
  background: rgba(0, 37, 58, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 169, 181, 0.2);
}

.service-content p {
  line-height: 1.7;
  margin-bottom: 1rem;
}

.service-content .sub-service-title {
  font-weight: 600;
  color: var(--color-branco);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.service-content ul {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.service-content ul li {
  display: flex;
  align-items: flex-start;
  padding: 8px 0;
}

.service-content ul i {
  color: var(--color-ciano-accent);
  margin-right: 10px;
  font-size: 20px;
  line-height: 1.5;
}

.service-content .highlight-text {
  background-color: rgba(0, 169, 181, 0.1);
  border-left: 4px solid var(--color-ciano-accent);
  padding: 15px;
  border-radius: 8px;
  margin-top: 20px;
  font-style: italic;
  display: flex;
  align-items: center;
}

.service-content .highlight-text i {
  font-size: 22px;
  margin-right: 12px;
  color: var(--color-ciano-accent);
}

/*--------------------------------------------------------------
# Galeria do Serviço
--------------------------------------------------------------*/
.service-gallery .main-image {
  border-radius: 15px;
  margin-bottom: 15px;
  width: 100%;
  height: 350px;
  object-fit: cover;
  border: 1px solid rgba(0, 169, 181, 0.3);
}

.service-gallery .thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
}

.service-gallery .thumbnails img {
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s;
  border: 1px solid transparent;
  width: 100%;
  height: 80px;
  object-fit: cover;
}

.service-gallery .thumbnails img:hover {
  transform: scale(1.05);
  border-color: var(--color-ciano-accent);
}

/*--------------------------------------------------------------
# Footer
--------------------------------------------------------------*/
.footer {
  background: var(--color-azul-petroleo-medium);
  padding: 60px 0 30px 0;
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer h2 span {
  color: var(--color-ciano-accent);
}

.footer .social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-right: 10px;
  transition: 0.3s;
}

.footer .social-links a:hover {
  color: var(--color-branco);
  border-color: var(--color-ciano-accent);
}

.footer .footer-links h4 {
  color: var(--color-branco);
  font-size: 16px;
  padding-bottom: 12px;
}

.footer .footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer .footer-links ul li {
  padding-bottom: 10px;
}

.footer .footer-links ul a {
  color: var(--color-texto);
}

.footer .footer-links ul a:hover {
  color: var(--color-ciano-accent);
}

.footer .copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.dev-credit {
  font-size: 13px;
  color: var(--color-texto);
  opacity: 0.5;
  transition: 0.3s;
}

.dev-credit a {
  color: var(--color-ciano-accent);
  font-weight: 600;
  text-decoration: none;
}

.dev-credit:hover {
  opacity: 0.7;
}

/*--------------------------------------------------------------
# Botão Scroll Top
--------------------------------------------------------------*/
.scroll-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 999;
  background: var(--color-ciano-accent);
  width: 44px;
  height: 44px;
  border-radius: 50px;
  transition: all 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.active {
  visibility: visible;
  opacity: 1;
}

.scroll-top i {
  font-size: 24px;
  color: var(--color-branco);
}

/*--------------------------------------------------------------
# Media Queries Responsivas
--------------------------------------------------------------*/
@media (max-width: 485px) {
  .header .header-container {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .header .btn-return {
    margin-top: 10px;
  }
}