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

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --accent: #f59e0b;
  --success: #10b981;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --gray-1: #334155;
  --gray-2: #64748b;
  --gray-3: #94a3b8;
  --gray-4: #cbd5e1;
  --gray-5: #e2e8f0;
  --gray-6: #f1f5f9;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #4f46e5 0%, #0ea5e9 100%);
  --gradient-text: linear-gradient(135deg, #818cf8 0%, #38bdf8 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--gray-1);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-5);
}

nav {
  padding: 1rem 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  text-decoration: none;
  letter-spacing: -0.5px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray-2);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  transition: background 0.2s !important;
}

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

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

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: 0.3s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
  background: var(--white);
  color: var(--dark);
  border: 1px solid var(--gray-5);
}

.btn-secondary:hover {
  background: var(--gray-6);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 10rem 0 6rem;
  overflow: hidden;
  background: var(--dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0.9;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1.5px;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  max-width: 650px;
  margin: 0 auto 2.5rem;
  opacity: 0.9;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 4rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-top: 0.25rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

/* Logos Section */
.logos-section {
  padding: 3rem 0;
  background: var(--gray-6);
  border-bottom: 1px solid var(--gray-5);
}

.logos-title {
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-3);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}

.logos-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.logo-item {
  padding: 0.6rem 1.25rem;
  background: var(--white);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-1);
  border: 1px solid var(--gray-5);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-block;
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.75rem;
  letter-spacing: -0.5px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray-2);
}

/* How it Works */
.how-it-works {
  padding: 6rem 0;
  background: var(--white);
}

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

.step-card {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-5);
  transition: all 0.3s;
  position: relative;
}

.step-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.75rem;
}

.step-card p {
  color: var(--gray-2);
  line-height: 1.7;
}

/* Before/After */
.before-after {
  padding: 6rem 0;
  background: var(--gray-6);
}

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

.comparison-card {
  padding: 2.5rem;
  border-radius: var(--radius-xl);
}

.comparison-card.before {
  background: var(--white);
  border: 1px solid var(--gray-5);
}

.comparison-card.after {
  background: var(--dark);
  color: var(--white);
}

.comparison-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.comparison-card.before .comparison-badge {
  background: #fef2f2;
  color: #dc2626;
}

.comparison-card.after .comparison-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.comparison-card ul {
  list-style: none;
}

.comparison-card li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gray-5);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.comparison-card.after li {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.comparison-card li:last-child {
  border-bottom: none;
}

.negative::before {
  content: '✕';
  color: #dc2626;
  font-weight: 700;
}

.positive::before {
  content: '✓';
  color: #10b981;
  font-weight: 700;
}

/* Features */
.features {
  padding: 6rem 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-5);
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(79, 70, 229, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--gray-2);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Testimonials */
.testimonials {
  padding: 6rem 0;
  background: var(--gray-6);
}

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

.testimonial-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-5);
  transition: all 0.3s;
}

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

.testimonial-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.testimonial-card > p {
  color: var(--gray-1);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  color: var(--dark);
  font-size: 0.9rem;
}

.author-info span {
  color: var(--gray-3);
  font-size: 0.8rem;
}

/* Pricing */
.pricing {
  padding: 6rem 0;
  background: var(--white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

.pricing-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  border: 2px solid var(--gray-5);
  position: relative;
  transition: all 0.3s;
}

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

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: var(--white);
  padding: 0.35rem 1.25rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.price {
  display: flex;
  align-items: baseline;
  margin-bottom: 0.25rem;
}

.currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.amount {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -2px;
}

.period {
  font-size: 1rem;
  color: var(--gray-3);
  margin-left: 0.25rem;
}

.iva-badge {
  font-size: 0.75rem;
  color: var(--success);
  margin-left: 0.5rem;
  font-weight: 600;
  white-space: nowrap;
}

.price-desc {
  color: var(--gray-2);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-5);
}

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

.pricing-card li {
  padding: 0.6rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-1);
  font-size: 0.95rem;
}

.pricing-card li svg {
  color: var(--success);
  flex-shrink: 0;
}

.select-plan-btn {
  width: 100%;
  padding: 1rem;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.select-plan-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.pricing-card.featured .select-plan-btn {
  background: var(--dark);
}

.pricing-card.featured .select-plan-btn:hover {
  background: var(--dark-2);
}

.pricing-note {
  text-align: center;
  color: var(--gray-2);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.pricing-note strong {
  color: var(--primary);
}

/* FAQ */
.faq {
  padding: 6rem 0;
  background: var(--gray-6);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: 0.75rem;
  border: 1px solid var(--gray-5);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color 0.2s;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 1.5rem 1.25rem;
  color: var(--gray-2);
  line-height: 1.7;
}

/* CTA Section */
.cta-section {
  padding: 6rem 0;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0.9;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.cta-content p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 550px;
  margin: 0 auto 2rem;
}

/* Footer */
footer {
  background: var(--dark);
  color: var(--gray-3);
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-brand .logo {
  color: var(--white);
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-links h4 {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--gray-3);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.85rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  max-width: 500px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-3);
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
}

.close:hover {
  background: var(--gray-6);
  color: var(--dark);
}

.modal-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 500;
  color: var(--gray-1);
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-5);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.plan-summary {
  background: var(--gray-6);
  padding: 1rem;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  text-align: center;
}

.plan-summary strong {
  color: var(--dark);
  display: block;
  margin-bottom: 0.25rem;
}

.plan-summary span {
  color: var(--primary);
  font-weight: 600;
}

.pay-button {
  width: 100%;
  padding: 1rem;
  background: var(--success);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.pay-button:hover {
  background: #059669;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

.pay-button:disabled {
  background: var(--gray-4);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding: 8rem 0 4rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

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

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

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

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

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

  .section-header h2 {
    font-size: 1.75rem;
  }

  .cta-content h2 {
    font-size: 1.75rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}