/* ==========================================================================
   1. Definições de Variáveis e Reset Geral
   ========================================================================== */
:root {
  --color-primary: #0f2d59;     /* Azul Escuro Corporativo Confiável */
  --color-secondary: #0070d2;   /* Azul Técnico Cisco */
  --color-accent: #04844b;      /* Verde Sucesso / Validação */
  --color-accent-gold: #b38600; /* Destaque para Prémios */
  --text-main: #2b303a;         /* Cinza muito escuro para leitura ideal */
  --text-muted: #5c6470;        /* Cinza de suporte */
  --bg-light: #f4f6f9;          /* Secções intercaladas */
  --bg-white: #ffffff;
  --radius: 8px;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 6px 16px rgba(15, 45, 89, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 92%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ==========================================================================
   2. Estrutura do Cabeçalho (Menu Superior Fixo)
   ========================================================================== */
header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e5e9f0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

nav a:hover {
  color: var(--color-secondary);
}

/* ==========================================================================
   3. Secção Hero (Introdução Visual)
   ========================================================================== */
#hero {
  background: linear-gradient(135deg, #091a33 0%, var(--color-primary) 100%);
  color: var(--bg-white);
  padding: 6.5rem 0;
  text-align: left;
}

.hero-container {
  max-width: 800px;
}

#hero h1 {
  font-size: 2.8rem;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 1.2rem;
  letter-spacing: -1px;
}

#hero p {
  font-size: 1.25rem;
  opacity: 0.85;
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.btn {
  display: inline-block;
  background-color: var(--color-secondary);
  color: var(--bg-white);
  padding: 0.85rem 1.8rem;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: #005bb2;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 112, 210, 0.3);
}

/* ==========================================================================
   4. Configurações Globais das Secções & Bloco Sobre
   ========================================================================== */
section {
  padding: 5rem 0;
}

section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 2rem;
  letter-spacing: -0.5px;
}

#sobre {
  background-color: var(--bg-light);
}

.sobre-conteudo {
  max-width: 900px;
}

.sobre-conteudo p {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}
/* ==========================================================================
   5. Grelha de Serviços (Grid Dinâmico)
   ========================================================================== */
.grid-servicos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.card-servico {
  background-color: var(--bg-white);
  padding: 2.2rem 1.8rem;
  border-radius: var(--radius);
  border: 1px solid #e5e9f0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.card-servico:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.servico-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.card-servico h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.card-servico p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   6. Painel Avançado de Certificações (Com Credly)
   ========================================================================== */
#certificacoes {
  background-color: var(--bg-light);
}

.subtitulo-seccao {
  color: var(--text-muted);
  margin-top: -1.5rem;
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.categoria-titulo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 2.5rem 0 1.25rem 0;
  border-left: 4px solid var(--color-secondary);
  padding-left: 0.75rem;
}

.grid-certificacoes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.card-cert {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background-color: var(--bg-white);
  padding: 1.25rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.card-cert:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.card-cert.premio:hover { border-color: var(--color-accent-gold); }
.card-cert.core-tech:hover { border-color: #d9381e; }
.card-cert.security-tech:hover { border-color: #027a48; }

.cert-badge-visual {
  font-size: 2rem;
  background-color: var(--bg-light);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid #e2e8f0;
}

.cert-meta h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.cert-meta p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.btn-verificar {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-cert:hover .btn-verificar {
  color: var(--color-accent);
}

.card-cert.no-link {
  background-color: #f8fafc;
  cursor: default;
}
.card-cert.no-link:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: #e2e8f0;
}
.card-cert.no-link .btn-verificar.status {
  color: var(--text-muted);
}

/* ==========================================================================
   7. Proteção contra SPAM e Formulário de Contacto
   ========================================================================== */
.aviso-antispam {
  background-color: #fff9e6;
  border-left: 4px solid #ffcc00;
  padding: 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 2.5rem;
  max-width: 700px;
}

.aviso-antispam p {
  font-size: 0.9rem;
  color: #665200;
  line-height: 1.5;
}

.formulario-contacto {
  max-width: 700px;
  background-color: var(--bg-white);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid #ced4da;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--text-main);
  transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(0, 112, 210, 0.12);
}

.btn-submit {
  width: 100%;
  padding: 1rem;
}

/* ==========================================================================
   8. Rodapé (Footer)
   ========================================================================== */
footer {
  background-color: #0b1320;
  color: #a0aec0;
  padding: 2.5rem 0;
  font-size: 0.9rem;
  border-top: 4px solid var(--color-primary);
  text-align: center;
}

/* ==========================================================================
   9. Media Queries (Desenho Totalmente Responsivo)
   ========================================================================== */
@media (max-width: 768px) {
  .header-flex {
    flex-direction: column;
    gap: 1.25rem;
    text-align: center;
  }

  nav ul {
    gap: 1.25rem;
  }

  #hero {
    padding: 4.5rem 0;
    text-align: center;
  }

  #hero h1 {
    font-size: 2rem;
  }

  #hero p {
    font-size: 1.1rem;
  }

  section {
    padding: 3.5rem 0;
  }

  .grid-certificacoes {
    grid-template-columns: 1fr;
  }
}