:root {
  --bg-dark: #191923;
  --bg-mid: #232323;
  --accent: #ecba32;
  --text: #ffffff;
  --muted: #ccc;
  --muted-2: #777;
  --card-border: #323232;
  --radius: 8px;
  --transition: 0.28s;
}

/* Reset e base */
* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  margin: 0;
}

.container {
  width: 95%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Cabeçalho */
.site-header {
  border-bottom: 1px solid var(--card-border);
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text);
  text-decoration: none;
}

.logo .brand-text {
  font-family: Orbitron, sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: .6px;
}

/* Navegação */
.main-nav {
  display: flex;
  gap: 1.2rem;
}

.main-nav a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.main-nav a:hover {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--accent);
  font-size: 1.35rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--bg-dark);
  border-top: 1px solid var(--card-border);
}

.mobile-nav .mobile-link {
  padding: .85rem 1rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.mobile-nav.open {
  display: flex;
}

/* Hero */
.hero {
  padding: 4.5rem 0;
  background-image: linear-gradient(rgba(25,25,35,0.78), rgba(25,25,35,0.88)), 
                    url('https://images.unsplash.com/photo-1520975911189-9d3f0f0d6b32?auto=format&fit=crop&w=1600&q=80');
  background-size: cover;
  background-position: center;
  margin-bottom: 1.5rem;
}

.hero .hero-inner {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.hero .hero-copy {
  flex: 1 1 460px;
  padding-right: 1rem;
}

.hero h1 {
  font-family: Orbitron, sans-serif;
  font-size: 2.4rem;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: .4rem;
}

.hero h2 {
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: .85rem;
  font-weight: 600;
}

.lead {
  color: var(--muted);
  margin-bottom: 1rem;
  max-width: 46rem;
}

.hero-ctas {
  display: flex;
  gap: .8rem;
  margin-top: 1rem;
}

.hero-figure {
  flex: 0 1 420px;
}

.hero-figure img {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

/* Botões */
.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
  padding: .9rem 1.25rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition);
}

.btn-primary:hover {
  transform: translateY(-3px);
  background: #ffd76a;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--text);
  padding: .9rem 1.1rem;
  border-radius: 6px;
  text-decoration: none;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}


/* Seções gerais */
.section {
  padding: 3.2rem 0;
}

.section h3 {
  font-family: Orbitron, sans-serif;
  color: var(--accent);
  margin-bottom: .4rem;
  font-size: 1.15rem;
}

.section .section-sub {
  color: var(--muted);
  margin-bottom: 1.2rem;
}

/* Serviços */
.services-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(0,0,0,0.02));
  padding: 1.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  transition: transform var(--transition), border-color var(--transition);
}

.card h4 {
  color: var(--text);
  margin-bottom: .5rem;
  font-size: 1rem;
  font-weight: 600;
}

.card p {
  color: var(--muted);
  font-size: .95rem;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

/* Info Noir */
.info-noir {
  background: var(--bg-mid);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  padding: 2.6rem 0;
}

.info-noir .two-col {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 990px) {
  .info-noir .two-col {
    grid-template-columns: 1fr;
  }
}

.info-noir .text-block p {
  color: var(--muted);
  margin-bottom: 1rem;
}

.info-noir .bullet-list {
  margin-left: 1rem;
}

.info-noir .bullet-list li {
  margin-bottom: .55rem;
  color: var(--muted);
}

.info-noir .contact-block {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.03);
  padding: 1rem;
  border-radius: 6px;
}

.info-noir .contact-block .contact-quick {
  margin-top: 1rem;
  display: flex;
  gap: .6rem;
  flex-direction: column;
}

.info-noir .contact-block .small {
  color: var(--muted-2);
  font-size: .85rem;
  margin-top: .8rem;
}

/* Etapas e depoimentos */
.steps-grid, .test-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1000px) {
  .steps-grid, .test-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .steps-grid, .test-grid {
    grid-template-columns: 1fr;
  }
}

.step-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(0,0,0,0.02));
  padding: 1.2rem;
  border-radius: 6px;
  border: 1px solid var(--card-border);
}

.step-card .step-num {
  display: inline-block;
  background: var(--accent);
  color: var(--bg-dark);
  padding: .45rem .55rem;
  border-radius: 6px;
  font-weight: 700;
  margin-bottom: .6rem;
}

.step-card h4 {
  margin-bottom: .4rem;
}

.step-card p {
  color: var(--muted);
}

/* Depoimentos */
.test-item {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.03);
  padding: 1rem;
  border-radius: 6px;
}

.test-item p {
  color: var(--muted);
}

.test-item cite {
  display: block;
  margin-top: .6rem;
  color: var(--muted-2);
}

/* Contato */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 1.6rem;
}

@media (max-width: 1000px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.contact-form label {
  font-size: .85rem;
  color: var(--muted);
}

.contact-form input,
.contact-form textarea {
  padding: .85rem;
  border-radius: 6px;
  border: 1px solid var(--card-border);
  background: rgba(35,35,35,0.97);
  color: var(--text);
}

.contact-form .form-actions {
  display: flex;
  gap: .6rem;
}

.contact-form .form-notice {
  margin-top: .6rem;
  color: var(--muted);
}

/* footer */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 1.2rem 0;
  color: var(--muted-2);
  text-align: center;
}

.link-plain {
  color: var(--accent);
  text-decoration: none;
}

.small {
  font-size: .9rem;
  color: var(--muted);
}

/* Responsividade adicional */
@media (max-width: 900px) {
  .hero {
    padding: 3rem 0;
  }
  .hero .hero-inner {
    flex-direction: column-reverse;
    align-items: center;
  }
  .hero-figure img {
    max-width: 320px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
}


/* ===== BOTÃO VOLTAR AO TOPO ===== */

.back-to-top {
  position: fixed;
  bottom: 35px;
  right: 35px;
  background-color: #ffffff;
  color: var(--bg-dark);
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  font-size: 1.4rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s;
  box-shadow: 0 4px 25px rgba(255, 255, 255, 0.15);
  z-index: 1000;
}

.back-to-top:hover {
  transform: translateY(-4px);
  background-color: var(--accent);
  color: var(--bg-dark);
}

/* Quando o botão estiver visível */
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}