/* ===== Inbox Firewall - Landing (tema seguridad) ===== */
:root {
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #1e40af;
  --color-primary-hover: #1e3a8a;
  --color-primary-light: #dbeafe;
  --color-accent: #2563eb;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-border: #e2e8f0;
  --font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Header ----- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 8px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}

/* Logo en header: tamaño proporcional al original */
.logo-img {
  height: 64px;
  width: auto;
  max-height: 72px;
  object-fit: contain;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

.nav a.btn-primary {
  color: #fff;
}

.nav a.btn-primary:hover {
  color: #fff;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

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

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

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

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

/* ----- Hero ----- */
.hero {
  padding: 80px 0 100px;
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
}

.hero-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-title {
  margin: 0 0 24px 0;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.hero-title .highlight {
  color: var(--color-primary);
  position: relative;
}

.hero-lead {
  margin: 0 0 36px 0;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

.hero-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ----- Sections ----- */
.section {
  padding: 72px 0;
}

.section-title {
  margin: 0 0 12px 0;
  font-size: clamp(1.6rem, 3.5vw, 2rem);
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}

.section-lead {
  margin: 0 0 48px 0;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 48px;
}

/* ----- Steps ----- */
.section-steps {
  background: var(--color-surface);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  text-align: center;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 20px;
}

.step h3 {
  margin: 0 0 10px 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
}

.step p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ----- Demo ----- */
.section-demo {
  background: var(--color-bg-alt);
}

.demo-box {
  max-width: 520px;
  margin: 0 auto;
  padding: 24px;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.demo-email {
  position: relative;
  padding: 20px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.demo-header {
  margin-bottom: 12px;
}

.demo-from {
  font-size: 0.9rem;
  color: var(--color-danger);
  font-weight: 500;
}

.demo-body p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.demo-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
}

.demo-badge-danger {
  background: var(--color-danger);
}

.demo-badge-icon {
  font-size: 1rem;
}

.demo-tooltip {
  margin-top: 12px;
  padding: 10px 12px;
  background: #fef2f2;
  border-radius: 6px;
  font-size: 0.8rem;
  color: #991b1b;
  border-left: 3px solid var(--color-danger);
}

/* ----- Benefits ----- */
.benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.benefit {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.benefit-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1rem;
}

.benefit h3 {
  margin: 0 0 6px 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.benefit p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ----- Pricing ----- */
.section-pricing {
  background: var(--color-bg-alt);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 640px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  padding: 32px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  text-align: center;
}

.pricing-card-pro {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.badge-pro {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 20px;
}

.pricing-card h3 {
  margin: 0 0 4px 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.pricing-desc {
  margin: 0 0 16px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.pricing-price {
  margin: 0 0 24px 0;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.price-amount {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
}

.pricing-features {
  list-style: none;
  margin: 0 0 28px 0;
  padding: 0;
  text-align: left;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

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

.pricing-card .btn {
  width: 100%;
}

/* ----- CTA ----- */
.section-cta {
  padding: 88px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, #134e4a 100%);
  color: #fff;
  text-align: center;
}

.cta-inner {
  max-width: 560px;
  margin: 0 auto;
}

.cta-title {
  margin: 0 0 16px 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: #fff;
}

.cta-lead {
  margin: 0 0 28px 0;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
}

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

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

.cta-note {
  margin: 24px 0 0 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ----- FAQ ----- */
.faq-list {
  margin: 0;
  padding: 0;
  max-width: 640px;
  margin: 0 auto;
}

.faq-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item dt {
  margin: 0 0 10px 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}

.faq-item dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ----- Footer ----- */
.footer {
  padding: 40px 0;
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer-legal {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-link {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: underline;
}

.footer-link:hover {
  color: #fff;
}

/* ----- Checkout / formularios ----- */
.checkout-api-section .hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: -8px 0 12px 0;
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .nav {
    gap: 16px;
  }

  .nav a:not(.btn) {
    display: none;
  }

  .hero {
    padding: 56px 0 72px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
  }
}