/* ══════════════════════════════════════════════
   LAYOUT — Nav, container, secciones, grids, footer
══════════════════════════════════════════════ */

/* ── Barra de progreso ── */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--green));
  z-index: 1000;
  transition: width 80ms linear;
  box-shadow: 0 0 8px var(--blue-glow);
}

/* ── Canvas 3D ── */
#canvas-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#bg-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 30%,
    rgba(7, 9, 15, 0.55) 70%,
    rgba(7, 9, 15, 0.90) 100%
  );
  pointer-events: none;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ── Navegación ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--nav-h);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  background: rgba(7, 9, 15, 0.75);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.nav.scrolled {
  background: rgba(7, 9, 15, 0.92);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.5);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.nav__logo:hover { color: var(--blue-hover); }

.nav__logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--blue-dim);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--blue);
  font-size: 1rem;
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.nav__logo:hover .nav__logo-icon {
  background: var(--blue);
  color: #fff;
  box-shadow: var(--shadow-glow-sm);
}

.nav__logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius);
  padding: 3px 5px;
  transition: opacity var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.nav__logo:hover .nav__logo-img {
  box-shadow: 0 0 10px var(--blue-glow);
  opacity: 0.9;
}

.nav__links {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
  align-items: center;
}

.nav__link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--duration) var(--ease-out),
              background var(--duration) var(--ease-out);
}

.nav__link:hover {
  color: var(--text-primary);
  background: var(--blue-dim);
}

.nav__cta {
  margin-left: 0.5rem;
  flex-shrink: 0;
}

/* Facebook nav button */
.nav__fb {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--blue-dim);
  border: 1px solid var(--border);
  color: #1877f2;
  flex-shrink: 0;
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out);
}

.nav__fb:hover {
  background: #1877f2;
  color: #fff;
  border-color: #1877f2;
  box-shadow: 0 0 12px rgba(24, 119, 242, 0.4);
  transform: translateY(-1px);
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  margin-left: auto;
}

.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--duration) var(--ease-out),
              opacity var(--duration),
              background var(--duration);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Botones globales ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out),
              background var(--duration),
              color var(--duration),
              border-color var(--duration);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--blue);
  color: #fff;
  border: 1px solid transparent;
}

.btn--primary:hover {
  background: var(--blue-hover);
  color: #fff;
  box-shadow: 0 4px 20px var(--blue-glow);
}

.btn--outline {
  background: transparent;
  color: var(--blue);
  border: 1px solid var(--border-strong);
}

.btn--outline:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue-hover);
  box-shadow: var(--shadow-glow-sm);
}

.btn--large {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

/* ── Secciones base ── */
main {
  position: relative;
  z-index: 10;
}

.section {
  padding-block: var(--section-pad);
  position: relative;
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.85rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section__title em {
  font-style: normal;
  color: var(--blue);
}

.section__desc {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
}

/* ── Badge global ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid rgba(0, 212, 170, 0.28);
  padding: 0.35rem 0.85rem;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: calc(var(--nav-h) + 3rem);
  padding-bottom: 5rem;
  text-align: center;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  width: 100%;
}

.hero__content {
  max-width: 780px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero__title em {
  font-style: normal;
  color: var(--blue);
}

.hero__lead {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.8vw, 1.175rem);
  line-height: 1.7;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

.hero__form {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.hero__form input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 1rem;
  color: var(--text-primary);
  font-size: 0.9375rem;
  min-width: 200px;
  transition: border-color var(--duration), box-shadow var(--duration);
}

.hero__form input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

.hero__form input::placeholder { color: var(--text-muted); }

.hero__meta {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__meta span { display: flex; align-items: center; gap: 0.35rem; }

/* Stats */
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: 820px;
}

.stat {
  background: var(--bg-card);
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  transition: background var(--duration);
}

.stat:hover { background: var(--bg-card-hover); }

.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.5vw, 1.875rem);
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

/* Scroll hint */
.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  margin-top: 2.5rem;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-hint__text {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-hint__arrow {
  color: var(--blue);
  font-size: 1.1rem;
  opacity: 0.7;
}

/* ── Products grid ── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ── Split sections ── */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.split-section--reverse .split-grid {
  direction: rtl;
}

.split-section--reverse .split-grid > * {
  direction: ltr;
}

.split-content { display: flex; flex-direction: column; gap: 1.25rem; }
.split-content p { color: var(--text-secondary); line-height: 1.75; }
.split-content .section__title { margin-bottom: 0; }

/* ── Services list ── */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ── Lead magnet ── */
.lead-magnet-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.lead-magnet-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.lead-magnet-content p { color: var(--text-secondary); line-height: 1.75; }

/* ── Testimonials ── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* ── Pricing ── */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  max-width: 860px;
  margin-inline: auto;
}

/* ── CTA ── */
.cta-section { text-align: center; }

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 10;
  background: rgba(7, 9, 15, 0.95);
  border-top: 1px solid var(--border);
  padding-top: 4rem;
  backdrop-filter: blur(12px);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer__tagline {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer__nav-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer__nav a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--duration);
}

.footer__nav a:hover { color: var(--blue-hover); }

.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #1877f2 !important;
  font-weight: 500;
  margin-top: 0.35rem;
}

.footer__social-link:hover {
  color: #4299ff !important;
}

.footer__fb-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.footer__bottom {
  padding-block: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: center;
}

.footer__bottom p {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.footer__bottom a { color: var(--text-muted); }
.footer__bottom a:hover { color: var(--blue-hover); }

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */

@media (max-width: 900px) {
  /* Nav móvil */
  .nav__toggle { display: flex; }
  .nav__cta { display: none; }

  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(7, 9, 15, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem var(--container-pad) 1.5rem;
    gap: 0.25rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--duration-slow) var(--ease-out),
                opacity var(--duration-slow);
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    padding: 0.75rem 0.5rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }

  /* Hero stats */
  .hero__stats { grid-template-columns: repeat(2, 1fr); }

  /* Grids */
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .split-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .split-section--reverse .split-grid { direction: ltr; }
  .lead-magnet-grid { grid-template-columns: 1fr; }
  .guide-3d-wrapper { display: flex; justify-content: center; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 500px) {
  :root { --section-pad: 3rem; }

  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__form { flex-direction: column; align-items: stretch; }
  .hero__form input { min-width: unset; }
  .products-grid { grid-template-columns: 1fr; }
  .hero__meta { flex-direction: column; gap: 0.6rem; align-items: center; }
  .footer__grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .cta-form__row { flex-direction: column; }
}