/* ========================================
   NFeasy - Landing Page Styles
   ========================================

   CONFIGURAÇÃO DE CORES (edite aqui):
   --primary: cor principal (azul)
   --primary-dark: versão mais escura
   --primary-light: versão mais clara

======================================== */

:root {
  /* ===== CORES PRINCIPAIS ===== */
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #3B82F6;
  --primary-ultralight: #EFF6FF;

  /* ===== CORES SECUNDÁRIAS ===== */
  --accent: #1E3A8A;
  --accent-light: #1D4ED8;

  /* ===== CORES NEUTRAS ===== */
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* ===== CORES DOS MODELOS ===== */
  --sub-color: #2563EB;
  --source-color: #7C3AED;
  --premise-color: #D97706;

  /* ===== TIPOGRAFIA ===== */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

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

  /* ===== BORDAS ===== */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* ===== SOMBRAS ===== */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* ===== TRANSIÇÕES ===== */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ========== UTILITIES ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-outline {
  background: transparent;
  color: var(--gray-700);
  border: 2px solid var(--gray-200);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

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

.btn-white:hover {
  background: var(--gray-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ========== HEADER ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
  transition: all var(--transition-base);
}

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

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-lg);
}

.logo-icon-footer {
  background: rgba(37, 99, 235, 0.2);
  color: var(--primary-light);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--gray-900);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== HERO ========== */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-ultralight) 0%, var(--white) 55%, var(--gray-50) 100%);
  z-index: -1;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  opacity: 0.07;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

/* Hero Left */
.hero-content {}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-ultralight);
  color: var(--primary-dark);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xl);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
  margin-bottom: var(--spacing-xl);
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-subtitle strong {
  color: var(--gray-800);
  font-weight: 600;
}

/* NF type badges */
.hero-nf-types {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.nf-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--white);
  border: 1.5px solid var(--primary-light);
  color: var(--primary-dark);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
}

.stat {
  text-align: left;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--gray-900);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--gray-200);
}

/* Hero Right — API Demo */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.api-demo {
  width: 100%;
  max-width: 480px;
  background: #0F172A;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(255,255,255,0.05);
}

.api-demo-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: #1E293B;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.api-demo-dots {
  display: flex;
  gap: 6px;
}

.api-demo-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.api-demo-dots span:nth-child(1) { background: #EF4444; }
.api-demo-dots span:nth-child(2) { background: #F59E0B; }
.api-demo-dots span:nth-child(3) { background: #22C55E; }

.api-demo-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: #94A3B8;
  letter-spacing: 0.5px;
}

.api-demo-body {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.api-demo-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
}

/* Syntax colors */
.c-key    { color: #7DD3FC; }  /* light blue */
.c-string { color: #86EFAC; }  /* light green */
.c-number { color: #FCA5A5; }  /* light red */
.c-brace  { color: #CBD5E1; }  /* slate */
.c-punct  { color: #64748B; }  /* muted */
.c-comment{ color: #64748B; }

.api-demo-response {
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.response-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 6px #22C55E;
}

.status-code {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: #22C55E;
  font-weight: 600;
}

.response-code {
  opacity: 0.75;
}

/* ========== SECTIONS COMMON ========== */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--spacing-3xl);
}

.section-tag {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-ultralight);
  color: var(--primary-dark);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
}

/* ========== MODELOS / SEGMENTS ========== */
.segments {
  padding: 100px 0;
  background: var(--white);
}

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

.segment-card {
  position: relative;
  padding: var(--spacing-2xl);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.segment-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.segment-sub:hover     { border-color: var(--sub-color); }
.segment-source:hover  { border-color: var(--source-color); }
.segment-premise:hover { border-color: var(--premise-color); }

.segment-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-lg);
}

.segment-sub .segment-icon {
  background: rgba(37, 99, 235, 0.1);
  color: var(--sub-color);
}

.segment-source .segment-icon {
  background: rgba(124, 58, 237, 0.1);
  color: var(--source-color);
}

.segment-premise .segment-icon {
  background: rgba(217, 119, 6, 0.1);
  color: var(--premise-color);
}

.segment-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary);
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.segment-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.segment-description {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.segment-features {
  margin-bottom: var(--spacing-xl);
  flex: 1;
}

.segment-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  padding: var(--spacing-sm) 0;
}

.segment-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.segment-source .segment-features li::before { background: var(--source-color); }
.segment-premise .segment-features li::before { background: var(--premise-color); }

/* Override secondary btn per card */
.segment-source  .btn-secondary:hover { background: rgba(124, 58, 237, 0.1); color: var(--source-color); }
.segment-premise .btn-secondary:hover { background: rgba(217, 119, 6, 0.1);  color: var(--premise-color); }

/* ========== FUNCIONALIDADES / BENEFITS ========== */
.benefits {
  padding: 100px 0;
  background: var(--gray-50);
}

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

.benefit-card {
  padding: var(--spacing-2xl);
  background: var(--white);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.benefit-card:hover {
  box-shadow: var(--shadow-lg);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-ultralight);
  color: var(--primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.benefit-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.benefit-description {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  line-height: 1.7;
}

/* ========== COMO FUNCIONA ========== */
.how-it-works {
  padding: 100px 0;
  background: var(--white);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-xl);
}

.step-number {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  font-size: var(--font-size-2xl);
  font-weight: 800;
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.3);
}

.step-content {
  max-width: 220px;
}

.step-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.step-description {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  line-height: 1.7;
}

.step-connector {
  width: 60px;
  height: 2px;
  background: var(--gray-200);
  margin-top: 32px;
  flex-shrink: 0;
}

/* ========== CTA SECTION ========== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
}

.cta-note {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

/* ========== FOOTER ========== */
.footer {
  padding: 60px 0 30px;
  background: var(--gray-900);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--gray-800);
}

.footer-brand {
  max-width: 250px;
}

.footer-brand .logo-text {
  color: var(--white);
}

.footer-tagline {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--gray-400);
}

.footer-links {
  display: flex;
  gap: var(--spacing-3xl);
}

.footer-column h4 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-column a {
  font-size: var(--font-size-sm);
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .hero-visual {
    justify-content: center;
    order: -1;
  }

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

  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-nf-types {
    justify-content: center;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .stat {
    text-align: center;
  }

  .segments-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .segment-card:last-child {
    grid-column: span 2;
    max-width: 480px;
    margin: 0 auto;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--white);
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-actions .btn {
    display: none;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-xl);
  }

  .stat-divider {
    display: none;
  }

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

  .segment-card:last-child {
    grid-column: auto;
    max-width: none;
  }

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

  .steps {
    flex-direction: column;
    gap: 0;
  }

  .step-connector {
    width: 2px;
    height: 40px;
    margin: 0;
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    max-width: none;
  }

  .footer-brand .logo {
    justify-content: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2xl);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-title {
    font-size: var(--font-size-2xl);
  }

  .api-demo {
    font-size: 0.72rem;
  }

  .api-demo-code {
    font-size: 0.72rem;
  }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
}

.animate-on-scroll.visible {
  animation: fadeInUp 0.6s ease forwards;
}