/* ==============================================================================
   VERANTIS — ENGENHARIA & GESTÃO TÉCNICA
   Design System e Estilos Gerais (verantis.pt)
   ============================================================================== */

:root {
  /* Cores Corporativas */
  --color-primary: #1F3864;         /* Deep Navy Corporativo */
  --color-primary-dark: #142544;    /* Navy Escuro */
  --color-primary-light: #2A4A80;   /* Navy Claro */
  --color-accent: #2563EB;          /* Azul Aço Ação */
  --color-accent-hover: #1D4ED8;    /* Azul Ação Hover */
  --color-accent-subtle: #EFF6FF;   /* Azul Muito Claro / Destaque */
  
  --color-text-main: #0F172A;       /* Texto Principal */
  --color-text-muted: #475569;      /* Texto Secundário */
  --color-text-light: #64748B;      /* Texto Esbatido */
  
  --color-bg-body: #FFFFFF;         /* Fundo Branco */
  --color-bg-subtle: #F8FAFC;       /* Fundo Secções Neutras */
  --color-bg-card: #FFFFFF;         /* Fundo Cartões */
  --color-border: #E2E8F0;          /* Bordas Ténues */
  --color-border-subtle: #F1F5F9;   /* Bordas Interiores */

  /* Tipografia */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Space Grotesk', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Espaçamento e Layout */
  --container-max: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Reset Básico */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.text-accent {
  color: var(--color-accent);
}

.text-white {
  color: #FFFFFF !important;
}

.text-slate {
  color: #94A3B8 !important;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-subtle);
  border-color: #CBD5E1;
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.88rem;
}

.btn-block {
  width: 100%;
}

/* ==============================================================================
   Cabeçalho e Navegação
   ============================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.main-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle .bar {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background-color: var(--color-primary);
  transition: all var(--transition-fast);
}

/* ==============================================================================
   Hero Section
   ============================================================================== */
.hero-section {
  padding: 5rem 0 4.5rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-content {
  max-width: 900px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background-color: #E2E8F0;
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 2.25rem;
  max-width: 780px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: 0.35rem;
}

/* ==============================================================================
   Secções Gerais
   ============================================================================== */
.section {
  padding: 5.5rem 0;
}

.section-header {
  max-width: 760px;
  margin-bottom: 3.5rem;
}

.section-kicker {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.015em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==============================================================================
   Serviços (Cards)
   ============================================================================== */
.services-section {
  background-color: #FFFFFF;
}

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

.service-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: #CBD5E1;
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.service-legal {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.service-text {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-bullets {
  list-style: none;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border-subtle);
}

.service-bullets li {
  font-size: 0.9rem;
  color: var(--color-text-main);
  padding-left: 1.35rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.service-bullets li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* ==============================================================================
   Metodologia
   ============================================================================== */
.methodology-section {
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.methodology-step {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.step-text {
  font-size: 0.94rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==============================================================================
   Compliance e Garantias
   ============================================================================== */
.compliance-section {
  background-color: var(--color-primary);
}

.compliance-box {
  color: #FFFFFF;
}

.compliance-header {
  max-width: 800px;
  margin-bottom: 3rem;
}

.compliance-table-wrapper {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.compliance-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.compliance-table th {
  padding: 1.2rem 1.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94A3B8;
  background-color: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.compliance-table td {
  padding: 1.35rem 1.5rem;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #F1F5F9;
}

.compliance-table tr:last-child td {
  border-bottom: none;
}

.compliance-table td strong {
  color: #FFFFFF;
}

/* ==============================================================================
   Setores
   ============================================================================== */
.sectors-section {
  background-color: #FFFFFF;
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.sector-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  background-color: var(--color-bg-subtle);
  transition: all var(--transition-fast);
}

.sector-card:hover {
  background-color: #FFFFFF;
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.sector-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

.sector-text {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ==============================================================================
   Formulário de Contacto
   ============================================================================== */
.contact-section {
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 4rem;
  align-items: start;
}

.contact-channels {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.channel-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.channel-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.channel-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  font-weight: 600;
}

.channel-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

a.channel-value:hover {
  color: var(--color-accent);
}

.contact-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.75rem;
}

.project-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-main);
  font-size: 0.95rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  background-color: #FFFFFF;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-feedback {
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  display: none;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
}

.form-feedback.success {
  display: block;
  background-color: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.form-feedback.error {
  display: block;
  background-color: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

/* ==============================================================================
   Rodapé
   ============================================================================== */
.site-footer {
  background-color: #0B132B;
  color: #94A3B8;
  padding-top: 4.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1.25fr 1.25fr;
  gap: 3.5rem;
  padding-bottom: 3.5rem;
}

.footer-about {
  font-size: 0.92rem;
  line-height: 1.6;
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 420px;
}

.footer-cae {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: #64748B;
  padding: 0.5rem 0.85rem;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.footer-title {
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-contact-item {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: #94A3B8;
}

.footer-contact-item a {
  color: #60A5FA;
  text-decoration: none;
}

.footer-contact-item strong {
  color: #CBD5E1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem 0;
  font-size: 0.82rem;
  color: #64748B;
}

.bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==============================================================================
   Responsividade (Mobile-First / Breakpoints)
   ============================================================================== */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .services-grid,
  .methodology-grid,
  .contact-container,
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .sectors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.active {
    display: block;
  }
  .main-nav .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .hero-title {
    font-size: 2rem;
  }
  .project-form .form-row {
    grid-template-columns: 1fr;
  }
  .sectors-grid {
    grid-template-columns: 1fr;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
  }
  .bottom-content {
    flex-direction: column;
    align-items: flex-start;
  }
}