/* ==========================================================================
   DESOLI — Design System & Folha de Estilos Corporativa
   Versão: 1.0 (Produção Comercial B2B)
   Linguagem: Português de Portugal
   ========================================================================== */

:root {
  /* Paleta DESOLI */
  --color-deep-slate: #0F172A;
  --color-slate-surface: #1E293B;
  --color-slate-card: #182234;
  --color-desoli-blue: #2563EB;
  --color-desoli-blue-hover: #1D4ED8;
  --color-cyan-pulse: #06B6D4;
  --color-text-white: #FFFFFF;
  --color-text-muted: #94A3B8;
  --color-text-dark: #0F172A;
  --color-bg-light: #F8FAFC;
  --color-border-dark: #334155;
  --color-border-light: #E2E8F0;

  /* Paleta Clara by Desoli */
  --clara-petroleo: #123D43;
  --clara-menta: #39B9A4;
  --clara-menta-hover: #2DA08D;
  --clara-gelo: #F5F8F7;
  --clara-grafite: #172B35;
  --clara-verde-status: #10B981;

  /* Tipografia & Espaçamentos */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.25), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.25);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-deep-slate);
  color: var(--color-text-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Navegação & Cabeçalho
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-dark);
  padding: 16px 0;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 2px;
}

.brand-logo svg, .brand-logo img {
  height: 38px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-text-white);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--color-desoli-blue);
  color: var(--color-text-white);
}

.btn-primary:hover {
  background-color: var(--color-desoli-blue-hover);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background-color: var(--color-slate-surface);
  color: var(--color-text-white);
  border: 1px solid var(--color-border-dark);
}

.btn-secondary:hover {
  border-color: var(--color-cyan-pulse);
  color: var(--color-cyan-pulse);
}

.btn-clara {
  background-color: var(--clara-menta);
  color: var(--clara-grafite);
}

.btn-clara:hover {
  background-color: var(--clara-menta-hover);
  color: var(--color-text-white);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-cyan-pulse);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--color-cyan-pulse);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-cyan-pulse);
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-cyan-pulse), var(--color-desoli-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 19px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Secções de Conteúdo & Grelhas
   ========================================================================== */
.section {
  padding: 80px 0;
}

.section-darker {
  background-color: #0B1120;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 17px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 36px;
}

.card {
  background-color: var(--color-slate-card);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: var(--shadow-glow);
}

.card-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cyan-pulse);
  margin-bottom: 20px;
}

.card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.card p {
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* Destaque do Produto Clara */
.product-spotlight {
  background: linear-gradient(135deg, rgba(18, 61, 67, 0.6), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(57, 185, 164, 0.3);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.product-spotlight h3 {
  font-size: 32px;
  color: var(--color-text-white);
  margin-bottom: 16px;
}

.product-spotlight .endosso {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--clara-menta);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.feature-list {
  list-style: none;
  margin: 24px 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--color-text-muted);
  font-size: 15px;
}

.feature-list li svg {
  color: var(--clara-menta);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ==========================================================================
   Tabela de Preços & Condições
   ========================================================================== */
.pricing-card {
  background-color: var(--color-slate-card);
  border: 2px solid var(--color-desoli-blue);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}

.pricing-badge {
  display: inline-block;
  padding: 6px 16px;
  background-color: var(--color-desoli-blue);
  color: var(--color-text-white);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.pricing-value {
  margin: 20px 0;
}

.pricing-value .setup {
  font-size: 16px;
  color: var(--color-text-muted);
}

.pricing-value .price {
  font-size: 52px;
  font-weight: 800;
  color: var(--color-text-white);
}

.pricing-value .period {
  font-size: 16px;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Formulários Seguros e Contacto
   ========================================================================== */
.form-box {
  background-color: var(--color-slate-card);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-white);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-deep-slate);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  color: var(--color-text-white);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-cyan-pulse);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.form-help {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* ==========================================================================
   Rodapé Institucional
   ========================================================================== */
.footer {
  background-color: #080D1A;
  border-top: 1px solid var(--color-border-dark);
  padding: 60px 0 32px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h4 {
  color: var(--color-text-white);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

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

.footer-links a:hover {
  color: var(--color-cyan-pulse);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   Responsividade Mobile
   ========================================================================== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 34px;
  }
  .product-spotlight {
    grid-template-columns: 1fr;
    padding: 28px;
  }
  .grid-2, .grid-3, .footer-grid {
    grid-template-columns: 1fr;
  }
  .header-nav {
    flex-direction: column;
    gap: 16px;
  }
  .nav-links {
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
  }
}