/* === VARIÁVEIS EXAÍDAS DA SUA LOGO === */
:root {
  --bg-black: #000000; /* Fundo fixo do Banner 1 */
  --primary: #3d4654; /* Azul Escuro / Ardósia da Logo */
  --accent: #c3b697; /* Dourado / Bege da Logo */
  --bg-light: #f4f4f0; /* Fundo claro da Logo */
  --white: #fcfdfb; /* Branco puro */

  --text-main: #3d4654;
  --text-muted: #666666;
  --border: #e0e0e0;
  --transition: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

body {
  background-color: var(--white);
  color: var(--text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  color: var(--primary);
  font-weight: 300;
  letter-spacing: -0.5px;
}
p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

/* Utilitários de Cor de Fundo */
.bg-white {
  background-color: var(--white);
}
.bg-light {
  background-color: var(--bg-light);
}
.bg-brand {
  background-color: var(--primary);
  color: var(--white);
}
.bg-brand h2,
.bg-brand p {
  color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.text-center {
  text-align: center;
}

/* Animações */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: var(--transition);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Placeholders de Imagem (Para se orientar nas medidas) */
.img-placeholder {
  background: rgba(
    61,
    70,
    84,
    0.05
  ); /* Usando o azul da logo com transparência */
  border: 1px dashed var(--accent);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.9rem;
  text-align: center;
  padding: 20px;
  line-height: 1.5;
}

/* Header */
header {
  position: absolute;
  top: 0;
  width: 100%;
  padding: 30px 0;
  z-index: 10;
}
.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo-text {
  color: var(--white);
  font-weight: 600;
  letter-spacing: 3px;
  font-size: 1.1rem;
}
.nav-link {
  color: var(--white);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 1px;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.nav-link:hover {
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
}

/* Hero Section (A primeira impressão) */
.hero {
  background-color: var(--bg-black);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 50px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 50px;
  align-items: center;
  width: 100%;
}
.hero-content {
  color: var(--white);
}
.hero-subtitle {
  color: var(--accent);
  letter-spacing: 4px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  font-weight: 600;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 1.1;
  margin-bottom: 30px;
  font-weight: 400;
}
.hero-text {
  color: #aaaaaa;
  max-width: 500px;
  font-size: 1.1rem;
}
.strategic-placeholder {
  width: 100%;
  max-width: 800px;
  height: 500px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: #555;
}

/* Categorias de Lentes (Visão Simples e Multifocais) */
.lens-category {
  padding: 120px 0;
}
.lens-grid {
  display: grid;
  gap: 80px;
  align-items: center;
}
.tall-img {
  height: 650px;
  width: 100%;
}
.category-label {
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 15px;
  text-transform: uppercase;
}
.lens-content h2 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  line-height: 1.1;
}
.divider {
  width: 50px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 30px;
}
.tech-list {
  list-style: none;
  margin-top: 30px;
}
.tech-list li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 20px;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.tech-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
}
.tech-list li strong {
  color: var(--primary);
  font-weight: 600;
}

/* Tecnologia de Tratamentos */
.tech-section {
  padding: 120px 0;
}
.tech-section h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}
.section-desc {
  max-width: 700px;
  margin: 0 auto 80px;
  color: var(--bg-light);
  opacity: 0.8;
}
.tech-grid {
  display: grid;
  gap: 40px;
}
.tech-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 50px 40px;
  border-top: 3px solid var(--accent);
  transition: var(--transition);
  text-align: left;
}
.tech-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.1);
}
.tech-icon {
  font-size: 2.5rem;
  color: var(--accent);
  font-weight: 300;
  margin-bottom: 25px;
  font-family: Georgia, serif;
}
.tech-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--white);
}
.tech-card p {
  color: var(--bg-light);
  opacity: 0.8;
  font-size: 0.95rem;
  margin: 0;
}

/* Autenticidade & Contacto Integrado */
.certification-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}
.certification-box {
  max-width: 900px;
  margin: 0 auto;
  padding: 70px 50px;
  background: var(--white);
  border-radius: 8px;
  border: 1px solid rgba(195, 182, 151, 0.3);
  box-shadow: 0 15px 40px rgba(61, 70, 84, 0.05);
}
.cert-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
}
.certification-box h2 {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 20px;
}
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}
.certification-box p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.premium-statement {
  font-weight: 600;
  color: var(--accent) !important;
  font-size: 1.2rem !important;
  margin-top: 30px;
  letter-spacing: 0.5px;
}

/* Linha e Área de E-mail */
.contact-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: 50px 0;
}
.support-title {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 15px;
}
.support-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.email-container {
  padding: 30px;
  background: var(--bg-light);
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: inline-block;
  width: 100%;
  max-width: 600px;
}
.email-container:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 25px rgba(61, 70, 84, 0.08);
}
.email-link {
  font-size: clamp(1.2rem, 3vw, 2rem);
  color: var(--primary);
  text-decoration: none;
  font-weight: 300;
  letter-spacing: 1px;
  transition: var(--transition);
}
.email-link:hover {
  color: var(--accent);
}

/* Footer */
footer {
  background: var(--primary);
  padding: 60px 0;
  text-align: center;
  border-top: 1px solid rgba(195, 182, 151, 0.2);
}
.logo-text-footer {
  color: var(--accent);
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 15px;
  font-size: 1rem;
}
footer p {
  color: var(--bg-light);
  opacity: 0.6;
  font-size: 0.85rem;
  margin: 0;
}

/* Media Queries (Desktop) */
@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
  .strategic-placeholder {
    height: 600px;
  }
  .lens-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Efeito de Ziguezague */
  .lens-grid.reverse .lens-content {
    grid-column: 2;
    grid-row: 1;
  }
  .lens-grid.reverse .lens-image {
    grid-column: 1;
    grid-row: 1;
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1200px) {
  .tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}