/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: oklch(0.08 0.02 270);
  --bg-secondary: oklch(0.12 0.02 270);
  --bg-tertiary: oklch(0.16 0.02 270);
  --text-primary: oklch(0.95 0.01 270);
  --text-secondary: oklch(0.7 0.01 270);
  --text-tertiary: oklch(0.5 0.01 270);
  --accent-primary: oklch(0.75 0.15 45);
  --accent-secondary: oklch(0.65 0.15 35);
  --border-color: oklch(0.2 0.02 270);
  --radius: 0.75rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(20, 20, 25, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.5rem;
}

.logo-icon {
  font-size: 1.75rem;
}

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

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--accent-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

/* Hero Section */
.hero {
  padding: 8rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 2rem;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.badge-icon {
  font-size: 1.25rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-bottom: 2rem;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-note {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* WhatsApp Mockup */
.whatsapp-mockup {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.whatsapp-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.whatsapp-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.whatsapp-name {
  font-weight: 600;
}

.whatsapp-status {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.whatsapp-messages {
  padding: 1.5rem;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  display: flex;
  flex-direction: column;
  max-width: 80%;
}

.message.received {
  align-items: flex-start;
}

.message.sent {
  align-items: flex-end;
  align-self: flex-end;
}

.message-bubble {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--bg-tertiary);
}

.message.sent .message-bubble {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
}

.message-time {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.typing-indicator {
  display: flex;
  gap: 4px;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%,
  60%,
  100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  background: var(--bg-secondary);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.step-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.step-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  padding: 2.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  position: relative;
  transition: all 0.3s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.2);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.pricing-price {
  margin-bottom: 2rem;
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-primary);
}

.price-period {
  color: var(--text-tertiary);
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
}

.pricing-features li {
  padding: 0.75rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
  border-bottom: none;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(184, 134, 11, 0.1));
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-input {
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 1rem;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.cta-note {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 1rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-copyright {
  color: var(--text-tertiary);
}

.footer-brand {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
}

.shimmer {
  background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-primary) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

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

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