/* CSS Custom Properties - Design System */
:root {
  /* Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #e9ecef;
  --color-gray-200: #dee2e6;
  --color-gray-300: #ced4da;
  --color-gray-400: #adb5bd;
  --color-gray-500: #6c757d;
  --color-gray-600: #495057;
  --color-gray-700: #343a40;
  --color-gray-800: #212529;
  --color-gray-900: #2c3e50;

  --color-green-50: #a8e6cf;
  --color-green-100: #7fcdbb;
  --color-green-500: #27ae60;
  --color-green-600: #229954;

  --color-blue-50: #aed6f1;
  --color-blue-100: #85c1e9;
  --color-blue-500: #3498db;
  --color-blue-600: #2980b9;

  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.10);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.6;
  color: var(--color-gray-800);
  background: var(--color-white);
}

section {
  scroll-snap-align: start;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-100);
  z-index: 50;
}

.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-text {
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.nav-links a {
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-gray-800);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-green-500), var(--color-blue-500));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-gray-200);
  color: var(--color-gray-800);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: 1rem 1.35rem;
}

/* Hero */
.hero {
  padding: calc(var(--spacing-4xl) + 3rem) 0 var(--spacing-4xl);
  background: linear-gradient(180deg, var(--color-gray-50), rgba(248, 249, 250, 0));
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 52ch;
  margin-bottom: var(--spacing-xl);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Sections */
.section-title {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

.problem,
.solution,
.ai-responsibility,
.compliance,
.benefits,
.target-audience,
.privacy,
.terms {
  padding: calc(var(--spacing-4xl) + 2rem) 0;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.problem {
  background: var(--color-gray-50);
}

.solution {
  background: var(--color-white);
}

.ai-responsibility {
  background: var(--color-gray-50);
}

.compliance {
  background: var(--color-white);
}

.benefits {
  background: var(--color-gray-50);
}

.target-audience {
  background: var(--color-white);
}

.privacy {
  background: var(--color-gray-50);
}

.terms {
  background: var(--color-white);
}

.problem-grid,
.compliance-grid,
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.problem-card,
.compliance-card,
.benefit-item,
.ai-card {
  background: white;
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.problem-card:hover,
.compliance-card:hover,
.benefit-item:hover,
.ai-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.problem-icon,
.compliance-icon,
.benefit-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: var(--spacing-md);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(39, 174, 96, 0.12), rgba(52, 152, 219, 0.12));
  color: var(--color-gray-800);
}

.problem-icon svg,
.compliance-icon svg,
.benefit-icon svg {
  width: 24px;
  height: 24px;
}

/* Solution layout */
.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.solution-text p {
  color: var(--color-gray-600);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xl);
}

.solution-features {
  display: grid;
  gap: var(--spacing-md);
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gray-700);
}

.feature-check {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(39, 174, 96, 0.14);
  color: var(--color-green-600);
  font-weight: 700;
}

/* Dashboard preview */
.dashboard-preview {
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: white;
}

.preview-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-100);
  background: var(--color-gray-50);
}

.preview-dots {
  display: flex;
  gap: 0.4rem;
}

.preview-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--color-gray-300);
}

.preview-content {
  padding: var(--spacing-xl);
}

.chart-placeholder {
  height: 140px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(39, 174, 96, 0.12), rgba(52, 152, 219, 0.12));
  margin-bottom: var(--spacing-lg);
}

.metrics-placeholder {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.metric {
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--color-gray-100);
}

/* AI section */
.ai-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.ai-text p {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-base);
}

.ai-cards {
  display: grid;
  gap: var(--spacing-lg);
}

/* Final CTA */
.final-cta {
  padding: calc(var(--spacing-4xl) + 2rem) 0;
  background: linear-gradient(135deg, rgba(39, 174, 96, 0.08), rgba(52, 152, 219, 0.08));
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.cta-content {
  text-align: center;
}

.cta-title {
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  margin-bottom: var(--spacing-md);
}

.cta-subtitle {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
}

/* Footer */
.footer {
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  border-top: 1px solid var(--color-gray-100);
  background: var(--color-white);
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-description {
  color: var(--color-gray-600);
  max-width: 40ch;
}

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

.footer-column h4 {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-800);
}

.footer-column a {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.footer-column a:hover {
  color: var(--color-gray-800);
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-100);
  padding-top: var(--spacing-lg);
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* Responsive */
@media (max-width: 980px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .solution-content,
  .ai-content {
    grid-template-columns: 1fr;
  }

  .problem-grid,
  .compliance-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .problem,
  .solution,
  .ai-responsibility,
  .compliance,
  .benefits,
  .target-audience,
  .privacy,
  .terms,
  .final-cta {
    min-height: auto;
    padding: var(--spacing-3xl) 0;
  }

  .nav-links {
    display: none;
  }
}

/* =========================
   HERO ANIMATION: Gesto Orbit (SVG + CSS, no JS)
   ========================= */
.gesto-orbit {
  width: min(440px, 90vw);
  height: min(440px, 90vw);
  display: grid;
  place-items: center;
  position: relative;
  border-radius: 999px;
  background: radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0) 65%);
}

.gesto-orbit__svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Blob suave “respirando” */
.gesto-orbit__blob {
  transform-origin: 50% 50%;
  animation: gesto-blob 8s ease-in-out infinite;
  opacity: 0.95;
}

@keyframes gesto-blob {

  0%,
  100% {
    transform: scale(1) rotate(0deg);
  }

  50% {
    transform: scale(1.04) rotate(3deg);
  }
}

/* Curva principal com leve flutuação */
.gesto-orbit__path {
  transform-origin: 50% 50%;
  animation: gesto-path-float 6s ease-in-out infinite;
}

@keyframes gesto-path-float {

  0%,
  100% {
    transform: translateY(0px);
    opacity: 0.85;
  }

  50% {
    transform: translateY(-8px);
    opacity: 1;
  }
}

/* Traço animado (efeito “desenhar”) */
.gesto-orbit__path--live {
  stroke-dasharray: 220;
  stroke-dashoffset: 220;
  animation: gesto-draw 2.8s ease-in-out infinite;
}

@keyframes gesto-draw {
  0% {
    stroke-dashoffset: 220;
    opacity: 0.25;
  }

  40% {
    opacity: 0.9;
  }

  70% {
    stroke-dashoffset: 0;
    opacity: 0.9;
  }

  100% {
    stroke-dashoffset: -220;
    opacity: 0.25;
  }
}

/* Nós com pulso sutil */
.gesto-orbit__node {
  fill: rgba(255, 255, 255, 0.92);
  stroke: rgba(39, 174, 96, 0.55);
  stroke-width: 2;
  transform-origin: center;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.08));
  animation: gesto-node 3.2s ease-in-out infinite;
}

.gesto-orbit__node.n2 {
  stroke: rgba(52, 152, 219, 0.55);
  animation-delay: 0.6s;
}

.gesto-orbit__node.n3 {
  stroke: rgba(39, 174, 96, 0.55);
  animation-delay: 1.2s;
}

@keyframes gesto-node {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.08);
  }
}

/* Órbita girando lentamente */
.gesto-orbit__orbit {
  transform-origin: 50% 50%;
  animation: gesto-orbit 10s linear infinite;
  opacity: 0.85;
}

@keyframes gesto-orbit {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.gesto-orbit__dot {
  fill: rgba(52, 152, 219, 0.75);
}

.gesto-orbit__dot.d2 {
  fill: rgba(39, 174, 96, 0.75);
}

.gesto-orbit__dot.d3 {
  fill: rgba(52, 152, 219, 0.55);
}

.gesto-orbit__dot.d4 {
  fill: rgba(39, 174, 96, 0.55);
}

/* Acessibilidade: reduz movimento */
@media (prefers-reduced-motion: reduce) {

  .gesto-orbit__blob,
  .gesto-orbit__path,
  .gesto-orbit__path--live,
  .gesto-orbit__node,
  .gesto-orbit__orbit {
    animation: none !important;
  }
}