:root {
  --color-bg: #0b1120;
  --color-bg-2: #111827;
  --color-surface: #1f2937;
  --color-primary: #06b6d4;
  --color-primary-dark: #0891b2;
  --color-accent: #10b981;
  --color-text: #f3f4f6;
  --color-muted: #9ca3af;
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 1rem;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

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

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

.main-nav a {
  color: var(--color-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #0b1120;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(6, 182, 212, 0.35);
  color: #0b1120;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-text);
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 4rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.18), transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 strong {
  color: var(--color-primary);
  display: block;
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
  max-width: 540px;
}

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

.hero-visual {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.terminal {
  background: #020617;
  border-radius: 0.75rem;
  padding: 1.25rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--color-accent);
}

.terminal .line {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
}

.terminal .line.success {
  color: var(--color-accent);
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--color-bg-2);
}

.section-label {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section p.lead {
  color: var(--color-muted);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card {
  background: rgba(31, 41, 55, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(6, 182, 212, 0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.1);
  border-radius: 0.75rem;
  margin-bottom: 1.25rem;
  color: var(--color-primary);
  font-size: 1.5rem;
}

.card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.how-content ul {
  list-style: none;
  margin-top: 1.5rem;
}

.how-content li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: 0.75rem;
  color: var(--color-muted);
}

.how-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  justify-items: center;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Mais Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #0b1120;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.pricing-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.price span {
  font-size: 1rem;
  color: var(--color-muted);
  font-weight: 400;
}

.pricing-card ul {
  list-style: none;
  flex: 1;
  margin-bottom: 1.5rem;
}

.pricing-card li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-muted);
  font-size: 0.95rem;
}

.exchanges {
  text-align: center;
}

.exchanges .lead {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.exchange-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

.exchange-logos span {
  background: var(--color-surface);
  padding: 1rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 700;
  color: var(--color-muted);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.exchange-logos .coming-soon {
  color: var(--color-muted);
  opacity: 0.7;
}

.exchange-logos .coming-soon small {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-primary);
  text-transform: uppercase;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--color-text);
}

@media (max-width: 767px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.97);
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: none;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  .menu-toggle {
    display: flex;
  }

  .header-inner .btn {
    display: none;
  }
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3.75rem;
  }

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

  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

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

  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.lang-switcher {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.lang-switcher a {
  color: var(--color-text);
  font-weight: 600;
}

.lang-switcher a:hover {
  color: var(--color-primary);
}