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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #333;
  background: #f5f5f5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: all 0.3s;
  padding: 15px 0;
}

.navbar.scrolled {
  background: rgba(26, 35, 126, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: 10px 0;
}

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

.nav-logo {
  color: white;
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 800;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 25px;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: white;
}

.nav-btn {
  background: rgba(255,255,255,0.15) !important;
  padding: 8px 18px;
  border-radius: 20px;
  transition: background 0.2s !important;
}

.nav-btn:hover {
  background: rgba(255,255,255,0.25) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, #0d1547, #1a237e, #283593);
  color: white;
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 35px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn-cta {
  display: inline-block;
  background: white;
  color: #1a237e;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.btn-cta-outline {
  display: inline-block;
  background: transparent;
  color: white;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.4);
  transition: all 0.2s;
}

.btn-cta-outline:hover {
  border-color: white;
  background: rgba(255,255,255,0.1);
}

.hero-mockup {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.mockup-placeholder {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  backdrop-filter: blur(5px);
}

.mockup-placeholder p {
  font-size: 1.1rem;
  opacity: 0.7;
  margin: 0;
}

/* ── SECCIONES COMUNES ── */
.section-subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 40px;
  font-size: 1.05rem;
}

/* ── PROBLEMA ── */
.problem-section {
  padding: 70px 0;
  background: #fff;
}

.problem-section h2 {
  text-align: center;
  font-size: 1.8rem;
  color: #c62828;
  margin-bottom: 40px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.problem-card {
  background: #fff5f5;
  border: 1px solid #ffcdd2;
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  font-size: 1rem;
  line-height: 1.6;
  transition: transform 0.2s, box-shadow 0.2s;
}

.problem-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(198, 40, 40, 0.1);
}

.problem-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

/* ── SOLUCIÓN / FEATURES ── */
.solution-section {
  padding: 70px 0;
}

.solution-section h2 {
  text-align: center;
  font-size: 1.8rem;
  color: #1a237e;
  margin-bottom: 10px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.feature-card {
  background: white;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  transition: transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: #1a237e;
}

.feature-card p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* ── PARA QUIÉN ── */
.audience-section {
  padding: 70px 0;
  background: #fff;
}

.audience-section h2 {
  text-align: center;
  font-size: 1.8rem;
  color: #1a237e;
  margin-bottom: 35px;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 25px;
}

.audience-card {
  background: #e8eaf6;
  border-radius: 10px;
  padding: 18px;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
  color: #1a237e;
  transition: transform 0.2s, box-shadow 0.2s;
}

.audience-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(26, 35, 126, 0.15);
}

.audience-note {
  text-align: center;
  color: #666;
  font-size: 1rem;
}

/* ── PLANES ── */
.plans-section {
  padding: 70px 0;
}

.plans-section h2 {
  text-align: center;
  font-size: 1.8rem;
  color: #1a237e;
  margin-bottom: 10px;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-bottom: 30px;
}

.plan-card {
  background: white;
  border-radius: 14px;
  padding: 35px 25px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: relative;
  border: 2px solid transparent;
  transition: transform 0.25s, box-shadow 0.25s;
}

.plan-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.plan-popular {
  border-color: #1a237e;
  transform: scale(1.03);
}

.plan-popular:hover {
  transform: scale(1.03) translateY(-6px);
  box-shadow: 0 15px 40px rgba(26, 35, 126, 0.2);
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: #1a237e;
  color: white;
  padding: 5px 20px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

.plan-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1a237e;
  margin-bottom: 10px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 800;
  color: #333;
  margin-bottom: 20px;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 400;
  color: #888;
}

.plan-features {
  list-style: none;
  text-align: left;
  margin-bottom: 25px;
}

.plan-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid #f0f0f0;
}

.btn-plan {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 25px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  background: #e8eaf6;
  color: #1a237e;
  transition: all 0.2s;
}

.btn-plan:hover {
  background: #c5cae9;
  transform: translateY(-2px);
}

.btn-plan-popular {
  background: #1a237e;
  color: white;
}

.btn-plan-popular:hover {
  background: #283593;
}

.trial-banner {
  background: #e8f5e9;
  border: 1px solid #c8e6c9;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  font-size: 1.05rem;
  color: #2e7d32;
}

/* ── PASOS ── */
.steps-section {
  padding: 70px 0;
  background: #fff;
}

.steps-section h2 {
  text-align: center;
  font-size: 1.8rem;
  color: #1a237e;
  margin-bottom: 10px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.step-card {
  text-align: center;
  padding: 25px;
  transition: transform 0.2s;
}

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

.step-number {
  width: 50px;
  height: 50px;
  background: #1a237e;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 auto 15px;
  transition: transform 0.2s;
}

.step-card:hover .step-number {
  transform: scale(1.15);
}

.step-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #1a237e;
}

.step-card p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.5;
}

/* ── CONTACTO ── */
.contact-section {
  padding: 70px 0;
  background: #1a237e;
  color: white;
  text-align: center;
}

.contact-section h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.contact-subtitle {
  opacity: 0.85;
  margin-bottom: 30px;
  font-size: 1.05rem;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-contact {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-whatsapp {
  background: #25d366;
  color: white;
  box-shadow: 0 4px 15px rgba(37,211,102,0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(37,211,102,0.4);
}

.btn-email {
  background: white;
  color: #1a237e;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-email:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* ── FORMULARIO CONTACTO ── */
.contact-form-wrapper {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 14px;
  padding: 35px;
  backdrop-filter: blur(5px);
}

.contact-form-wrapper h3 {
  margin-bottom: 20px;
  font-size: 1.1rem;
  opacity: 0.9;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  color: white;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 12px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255,255,255,0.5);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.15);
}

.contact-form select {
  appearance: none;
  cursor: pointer;
}

.contact-form select option {
  background: #1a237e;
  color: white;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: #25d366;
  color: white;
  border: none;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(37,211,102,0.3);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,211,102,0.4);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-message {
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}

/* ── FOOTER ── */
.footer {
  background: #0d1547;
  color: white;
  text-align: center;
  padding: 25px 0;
  margin-top: 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-content p {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

/* ── CATÁLOGO (tenant.negotiale.com) ── */
.header {
  background: linear-gradient(135deg, #1a237e, #283593);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.logo {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.tagline {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 25px;
  line-height: 1.6;
}

.info {
  padding: 30px 0;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.card small {
  color: #888;
}

.catalog {
  padding: 20px 0 40px;
}

.catalog h2 {
  margin: 30px 0 15px;
  font-size: 1.5rem;
  color: #1a237e;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 15px;
}

.product-card {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

.product-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.product-info p {
  font-size: 0.85rem;
  color: #666;
}

.product-prices {
  text-align: right;
}

.price-usd {
  font-size: 1.1rem;
  font-weight: bold;
  color: #2e7d32;
}

.price-bs {
  font-size: 0.85rem;
  color: #888;
}

/* ── UTILS ── */
.loading {
  text-align: center;
  padding: 20px;
  color: #888;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(26, 35, 126, 0.97);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
  }

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

  .hero h1 {
    font-size: 2rem;
  }

  .hero {
    padding: 120px 0 40px;
  }

  .contact-form .form-row {
    grid-template-columns: 1fr;
  }

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

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .logo { font-size: 1.8rem; }
  .products-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .plans-grid { grid-template-columns: 1fr; }
  .plan-popular { transform: none; }
  .plan-popular:hover { transform: translateY(-6px); }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .contact-buttons { flex-direction: column; align-items: center; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
}