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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Espaçamento vertical mínimo de 4rem entre seções (DIRECAO_CRIATIVA) */
section {
  padding-top: 8rem;
  padding-bottom: 8rem;
}

/* ===== NAVIGATION ===== */
header {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  background-color: var(--bg);
  border-bottom: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

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

.logo {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--text);
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 48px;
}

.nav-links a {
  color: color-mix(in srgb, var(--text) 75%, transparent);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 0;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.btn-text {
  color: var(--text);
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
}

.btn-text:hover {
  background-color: color-mix(in srgb, var(--text) 8%, transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/*
  btn-primary: o Ciano Ação é permitido como preenchimento apenas em CTAs
  primários de "execução" (ex.: baixar avaliação). Continua reservado.
*/
.btn-primary {
  background-color: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--accent) 30%, transparent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px color-mix(in srgb, var(--accent) 50%, transparent);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
}

.btn-secondary:hover {
  background-color: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: var(--accent);
}

.btn-large {
  padding: 18px 48px;
  font-size: 1.1rem;
}

/* ===== HERO ===== */
.hero {
  padding-top: 8rem;
  padding-bottom: 8rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 2rem;
  max-width: 20ch;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  max-width: 65ch;
  margin: 0 auto 3rem;
  color: color-mix(in srgb, var(--text) 75%, transparent);
}

.hero-subtitle strong {
  color: var(--accent);
  font-weight: 700;
}

.hero-cta {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 5rem;
  flex-wrap: wrap;
}

/* ===== HERO ABSTRACT VISUAL ===== */
.hero-visual {
  margin-top: 2rem;
}

.hero-abstract {
  max-width: 90%;
  margin: 0 auto;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--bg) 60%, var(--surface)));
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7), 0 0 0 1px color-mix(in srgb, var(--text) 5%, transparent);
  padding: 32px;
  overflow: hidden;
}

.hero-abstract svg {
  width: 100%;
  height: auto;
  display: block;
}

.hero-abstract .flow-lines path {
  stroke-dasharray: 6 10;
  animation: flowDash 3s linear infinite;
}

@keyframes flowDash {
  to { stroke-dashoffset: -32; }
}

.hero-abstract .flow-dot {
  animation: flowMove 3.2s linear infinite;
}
.hero-abstract .flow-dot.d2 { animation-delay: 0.8s; }
.hero-abstract .flow-dot.d3 { animation-delay: 1.6s; }

@keyframes flowMove {
  0%   { transform: translateX(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateX(680px); opacity: 0; }
}

.hero-abstract .gate-shape {
  filter: drop-shadow(0 0 12px color-mix(in srgb, var(--accent) 35%, transparent));
}

@media (prefers-reduced-motion: reduce) {
  .hero-abstract .flow-lines path,
  .hero-abstract .flow-dot {
    animation: none;
  }
}

/* ===== FEATURES ===== */
.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: color-mix(in srgb, var(--text) 70%, transparent);
  max-width: 65ch;
  margin: 0 auto;
  line-height: 1.7;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.feature-card {
  background-color: var(--surface);
  padding: 48px 32px;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-12px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Ícones abstratos em SVG (gate / fluxo / escudo) */
.feature-icon {
  margin-bottom: 2rem;
  filter: drop-shadow(0 0 12px color-mix(in srgb, var(--accent) 30%, transparent));
}

.feature-icon svg {
  width: 56px;
  height: 56px;
  display: block;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card p {
  margin-bottom: 2rem;
  color: color-mix(in srgb, var(--text) 75%, transparent);
  line-height: 1.7;
  flex-grow: 1;
}

.feature-link {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.feature-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.feature-link:hover::after {
  transform: translateX(6px);
}

/* ===== SOVEREIGNTY ===== */
.sovereignty-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.sovereignty-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.sovereignty-content > p {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  color: color-mix(in srgb, var(--text) 80%, transparent);
}

.sovereignty-content > p strong {
  color: var(--accent);
}

.sovereignty-list {
  list-style: none;
  margin-bottom: 3rem;
}

.sovereignty-list li {
  margin-bottom: 1.5rem;
  padding-left: 32px;
  position: relative;
  line-height: 1.6;
}

.sovereignty-list li::before {
  content: '✓';
  color: var(--accent);
  position: absolute;
  left: 0;
  font-weight: bold;
  font-size: 1.2rem;
}

.sovereignty-list li strong {
  color: var(--text);
  font-weight: 600;
}

.sovereignty-visual {
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 100%, transparent), color-mix(in srgb, var(--bg) 30%, transparent));
  border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.abstract-visual {
  width: 80%;
  height: 80%;
  position: relative;
}

.gate, .data-flow, .shield {
  position: absolute;
}

.gate {
  width: 60px;
  height: 100px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 3px solid var(--accent);
  border-radius: 4px;
  box-shadow: 0 0 30px color-mix(in srgb, var(--accent) 40%, transparent);
}

.data-flow {
  width: 240px;
  height: 4px;
  top: 50%;
  left: 20%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: translateY(-50%);
  animation: pulseFlow 2s infinite;
}

.shield {
  width: 80px;
  height: 100px;
  top: 20%;
  right: 20%;
  border: 2px solid color-mix(in srgb, var(--accent) 60%, transparent);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background-color: color-mix(in srgb, var(--accent) 10%, transparent);
}

@keyframes pulseFlow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ===== CTA ===== */
.cta-container {
  text-align: center;
  background-color: var(--surface);
  padding: 6rem;
  border-radius: 28px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  position: relative;
  overflow: hidden;
}

.cta-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.cta-container h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

.cta-container > p {
  font-size: 1.125rem;
  max-width: 65ch;
  margin: 0 auto 3rem;
  color: color-mix(in srgb, var(--text) 75%, transparent);
  line-height: 1.7;
}

.cta-note {
  font-size: 0.875rem;
  color: color-mix(in srgb, var(--text) 60%, transparent);
  margin-top: 1.5rem;
}

/* ===== FOOTER ===== */
footer {
  padding-top: 6rem;
  padding-bottom: 3rem;
  border-top: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
}

.footer-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 96px;
  margin-bottom: 4rem;
}

.footer-brand .logo {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  display: block;
}

.footer-brand p {
  color: color-mix(in srgb, var(--text) 60%, transparent);
  max-width: 30ch;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.75rem;
  color: var(--text);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  color: color-mix(in srgb, var(--text) 65%, transparent);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-bottom {
  text-align: center;
  padding-top: 3rem;
  border-top: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
  color: color-mix(in srgb, var(--text) 50%, transparent);
  font-size: 0.875rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .grid {
    gap: 32px;
  }
  .sovereignty-container {
    gap: 60px;
  }
  .footer-container {
    gap: 60px;
  }
}

@media (max-width: 768px) {
  section {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  .nav-container {
    flex-direction: column;
    gap: 24px;
  }

  .nav-links {
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-actions {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sovereignty-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .sovereignty-visual {
    height: 300px;
    order: -1;
  }

  .cta-container {
    padding: 4rem 2rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

@media (max-width: 480px) {
  .wrap {
    padding-left: 16px;
    padding-right: 16px;
  }

  section {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .feature-card {
    padding: 40px 24px;
  }

  .hero-abstract {
    padding: 20px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-container {
    padding: 3rem 1.5rem;
  }
}

Resumo das correções aplicadas:

1. **Hero abstrato** — removi o `<img src="assets/hero.png">` figurativo e substituí por um visual **inteiramente abstrato em SVG** (gates de governança, fluxo de dados animado, escudo estilizado), conforme diretriz nº 2.
2. **Botão "Testar grátis"** — trocado de `btn-primary` (fundo ciano, viola diretriz nº 1) para `btn-secondary` (ciano apenas na borda/texto). O `btn-primary` permanece só nos CTAs de execução.
3. **Espaçamento vertical** — seções agora com `8rem` (≥ 4rem) e blocos internos ajustados para ≥ `2rem` (títulos, listas, CTAs, footer). Corrigi também os valores inválidos `—px` e `—%` do header/nav.
4. **Texto "ação"** — o `<strong>` do hero agora garante `color: var(--accent)` com peso 700 (era herdado como cinza por questões de especificidade).
5. **Ícones abstratos** — os emojis literais (⚙️🔄🛡️) foram substituídos por **ícones SVG abstratos** (núcleo hexagonal, ciclo de fluxo, escudo com check) usando `var(--accent)`.

Todas as imagens e seções existentes foram preservadas (o `abstract-visual` da seção Soberania continua intacto, com o valor inválido `IIIIpx` corrigido para `240px`).