/* ===== VARIABLES ===== */
:root {
  --primary: #3f51b5;
  --primary-dark: #303f9f;
  --primary-light: #7986cb;
  --primary-bg: #e8eaf6;
  --accent: #ff6f00;
  --text: #1a1a2e;
  --text-secondary: #64648c;
  --bg: #ffffff;
  --bg-alt: #f8f9ff;
  --border: #e2e4f0;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 1px 3px rgba(63,81,181,0.08);
  --shadow-md: 0 4px 20px rgba(63,81,181,0.1);
  --shadow-lg: 0 8px 40px rgba(63,81,181,0.12);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== LAYOUT ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: 10px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: 12px;
}

.btn-block {
  width: 100%;
  text-align: center;
}

.btn-nav {
  background: var(--primary);
  color: #fff;
  padding: 10px 24px;
  font-size: 0.9rem;
  border-radius: 8px;
}

.btn-nav:hover {
  background: var(--primary-dark);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

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

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--primary-bg) 0%, var(--bg) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
  color: var(--text-secondary);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.hero-gradient {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(63,81,181,0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* ===== PRODUCTS ===== */
.products-section {
  background: var(--bg-alt);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.product-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.product-card .btn-block {
  margin-top: auto;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--primary);
}

.product-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
}

.product-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.product-features {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how-section {
  background: var(--bg-alt);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  border-radius: 16px;
  margin-bottom: 20px;
}

.step h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== PRICING ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--primary);
  transform: scale(1.04);
}

.pricing-card.popular:hover {
  transform: scale(1.04) translateY(-4px);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 20px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-card h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.price {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.price-currency {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.pricing-features {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
}

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

/* ===== TESTIMONIALS ===== */
.testimonials-section {
  background: var(--bg-alt);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.testimonial-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

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

.cta-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #fff;
}

.cta-content > p {
  opacity: 0.85;
  font-size: 1.1rem;
  margin-bottom: 36px;
}

.cta-form {
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.form-row input {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}

.form-row input::placeholder {
  color: rgba(255,255,255,0.6);
}

.form-row input:focus {
  border-color: rgba(255,255,255,0.5);
}

.cta-section .btn-primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

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

.cta-note {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h5 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  opacity: 0.5;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .btn-nav {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

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

  .hero-sub {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-stats {
    gap: 30px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

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

  .features-grid,
  .steps-grid,
  .pricing-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.popular {
    transform: none;
  }

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

  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 1.7rem;
  }

  .form-row {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-links {
    gap: 32px;
    flex-wrap: wrap;
  }

  .cta-content h2 {
    font-size: 1.7rem;
  }
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

/* ===== FORM SELECTION TAG ===== */
.form-selection {
  margin-bottom: 16px;
}

.selection-tag {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ===== PRODUCT PRICE IN CARD ===== */
.product-price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.product-price .price-currency {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.product-price .price-amount {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.product-price .price-period {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-left: 4px;
}