/**
 * RT Sistemas - Tema tecnológico
 * Inspirado en Appland, diseño único oscuro con acentos cyan/emerald
 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&family=DM+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --bg-dark: #0a0e17;
  --bg-card: rgba(15, 23, 42, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --accent: #22d3ee;
  --accent-dim: #06b6d4;
  --accent-glow: rgba(34, 211, 238, 0.35);
  --secondary: #34d399;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --heading-font: 'Orbitron', sans-serif;
  --body-font: 'DM Sans', system-ui, sans-serif;
  --mono-font: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--body-font);
  background: var(--bg-dark);
  color: var(--text);
  margin: 0;
  overflow-x: hidden;
}

/* Evitar desbordes en cualquier pantalla */
img, video, iframe, object {
  max-width: 100%;
  height: auto;
}

.noscript-msg {
  position: relative;
  z-index: 2000;
  background: rgba(34, 211, 238, 0.15);
  border-bottom: 1px solid var(--accent);
  padding: 0.6rem 1rem;
  text-align: center;
}

.noscript-msg p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text);
}

/* Grid de fondo tecnológico */
.tech-bg {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 14, 23, 0.97) 0%, var(--bg-dark) 100%),
    linear-gradient(90deg, rgba(34, 211, 238, 0.03) 0%, transparent 50%, rgba(52, 211, 153, 0.03) 100%);
  pointer-events: none;
  z-index: 0;
}

.tech-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(64px, 64px); }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 1.5rem;
  min-height: 4.5rem;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition);
  overflow: visible;
}

.header > .container {
  min-height: 2.5rem;
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.logo {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

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

.nav-desktop {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--accent);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.nav-desktop a:hover::after,
.nav-desktop a.active::after {
  width: 100%;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  font-weight: 600;
  border: none;
  border-radius: 50px;
  text-decoration: none;
  font-family: var(--body-font);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--accent-glow);
  color: var(--bg-dark);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Menú móvil: oculto en escritorio para que no se superponga al contenido */
.nav-mobile {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Fondo oscuro al abrir menú en móvil (evita que el contenido se vea encima) */
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

body.nav-open {
  overflow: hidden;
}

/* Hero */
.section--hero.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 1.5rem 4rem;
}

.container--hero,
.hero .container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  width: 100%;
}

.hero-content {
  padding-top: 0.5rem;
}

.hero-content h1 {
  font-family: var(--heading-font);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1.5rem;
  padding-top: 0;
  letter-spacing: 0.02em;
  overflow: visible;
}

.hero-content h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-visual {
  position: relative;
}

.hero-visual .glow-box {
  width: 100%;
  max-width: 420px;
  height: 320px;
  margin: 0 auto;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.glow-box::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: var(--accent-glow);
  border-radius: 50%;
  filter: blur(80px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.2); }
}

.glow-box .code-preview {
  position: relative;
  z-index: 1;
  font-family: var(--mono-font);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: left;
  padding: 1.5rem;
}

.code-preview span {
  color: var(--accent);
}

/* Page structure */
.page-main {
  position: relative;
  z-index: 1;
}

/* Section common */
.section {
  position: relative;
  z-index: 1;
  padding: 4.5rem 1.5rem;
}

.section--empresa,
.section--faq {
  background: rgba(255, 255, 255, 0.02);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-title__heading {
  font-family: var(--heading-font);
  font-size: clamp(1.65rem, 2.8vw, 2.1rem);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
}

.section-title__heading::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
  margin-top: 0.75rem;
  margin-left: auto;
  margin-right: auto;
}

.section-title__desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

.section-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* Legacy section-title (por si se usa en algún sitio) */
.section-title {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.section-title h2 {
  font-family: var(--heading-font);
  font-size: clamp(1.65rem, 2.8vw, 2.1rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.section-title p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

/* Empresa / About */
.section--empresa .container {
  max-width: 900px;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 0;
}

.about-cards li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  list-style: none;
  padding: 0.75rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}

.about-cards li i {
  color: var(--secondary);
  font-size: 1.25rem;
}

/* Sistemas - Cards */
.sistemas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.sistemas-grid--single {
  grid-template-columns: minmax(280px, 420px);
  justify-content: center;
}

.sistemas-grid--double {
  grid-template-columns: repeat(2, minmax(280px, 360px));
  justify-content: center;
}

.sistema-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.sistema-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}

.sistema-card:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.sistema-card:hover::before {
  opacity: 1;
}

.sistema-card.destacado {
  border-color: rgba(34, 211, 238, 0.25);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.1);
}

.sistema-card .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(52, 211, 153, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.sistema-card .icon-wrap i {
  font-size: 1.75rem;
  color: var(--accent);
}

.sistema-card h3 {
  font-family: var(--heading-font);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.sistema-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.sistema-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 0.5rem;
}

.sistema-card:hover .sistema-card-cta {
  text-decoration: underline;
}

.sistema-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bg-dark);
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  padding: 0.35rem 0.75rem;
  border-radius: 50px;
}

.sistema-card--en-desarrollo .sistema-card-badge {
  background: var(--text-muted);
  color: var(--bg-dark);
}

.sistemas-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}

.sistemas-empty p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

/* Panel detalle sistema (información + planes) */
.sistema-detalle-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5rem 2rem 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sistema-detalle-overlay.open {
  opacity: 1;
  visibility: visible;
}

body.detalle-open {
  overflow: hidden;
}

.sistema-detalle-panel {
  position: relative;
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.sistema-detalle-cerrar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  padding: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  color: var(--text);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.sistema-detalle-cerrar:hover {
  background: rgba(248, 113, 113, 0.2);
  color: #f87171;
}

.sistema-detalle-header {
  margin-bottom: 2rem;
  padding-right: 3rem;
}

.sistema-detalle-icono {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(52, 211, 153, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.sistema-detalle-icono i {
  font-size: 2rem;
  color: var(--accent);
}

.sistema-detalle-titulo {
  font-family: var(--heading-font);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.75rem;
}

.sistema-detalle-desc,
.sistema-detalle-larga {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0 0 0.5rem;
}

.sistema-detalle-larga {
  margin-top: 1rem;
}

.sistema-detalle-planes h3 {
  font-family: var(--heading-font);
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.sistema-detalle-panel .pricing-grid {
  margin: 0;
}

.sistema-detalle-panel .no-planes-msg {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.sistema-en-desarrollo-aviso {
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}

.sistema-en-desarrollo-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--heading-font);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
}

.sistema-en-desarrollo-badge i {
  font-size: 1.25rem;
}

.sistema-en-desarrollo-texto {
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 1.5rem;
}

.btn-precio-en-desarrollo {
  margin-top: 0.5rem;
}

/* Precios */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  border-color: rgba(34, 211, 238, 0.2);
  transform: translateY(-4px);
}

.pricing-card.destacado {
  border-color: var(--accent);
  box-shadow: 0 0 50px var(--accent-glow);
  position: relative;
}

.pricing-card.destacado::after {
  content: 'Recomendado';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  letter-spacing: 0.05em;
}

.pricing-card h3 {
  font-family: var(--heading-font);
  font-size: 1.35rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.pricing-card .periodo {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.pricing-card .precio-wrap {
  margin-bottom: 1.5rem;
}

.pricing-card .precio {
  font-family: var(--heading-font);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}

.pricing-card .precio span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  flex: 1;
}

.pricing-card ul li {
  padding: 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-card ul li i {
  color: var(--secondary);
  flex-shrink: 0;
}

.pricing-card .btn-precio {
  display: inline-block;
  text-align: center;
  padding: 0.85rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
  margin-top: auto;
}

.pricing-card .btn-precio:hover {
  background: var(--accent);
  color: var(--bg-dark);
}

.pricing-card.destacado .btn-precio {
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  border: none;
}

.pricing-card.destacado .btn-precio:hover {
  box-shadow: 0 0 25px var(--accent-glow);
}

/* Contacto */
.section--contacto .container {
  max-width: 1000px;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--accent);
  margin-top: 0.15rem;
}

.contact-item h4 {
  font-family: var(--heading-font);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-item p {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
}

.contact-item p a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.contact-item p a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.contact-form-title {
  font-family: var(--heading-font);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 1rem;
  letter-spacing: 0.02em;
}

/* Honeypot: oculto visualmente, los bots suelen rellenarlo */
.contact-hp {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--body-font);
  font-size: 1rem;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form-msg {
  margin: 0;
  font-size: 0.9rem;
}

.contact-form-msg.success { color: var(--secondary); }
.contact-form-msg.error { color: #f87171; }

/* Banner de cookies */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1500;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border-glass);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner.hidden {
  display: none;
}

.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-banner-inner p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  flex: 1;
  min-width: 200px;
}

.cookie-banner-inner a {
  color: var(--accent);
}

.cookie-banner-btns {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cookie-link {
  font-size: 0.9rem;
}

/* FAQ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: var(--bg-glass);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--body-font);
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

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

.faq-question i {
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--accent);
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

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

/* Cuando el ítem está abierto, permitir que se vea la respuesta */
.faq-item.open .faq-answer {
  max-height: 800px;
}

.faq-answer p {
  margin: 0;
  padding: 0 1.25rem 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  font-size: 0.95rem;
}

/* Botón WhatsApp flotante */
.whatsapp-float {
  position: fixed;
  bottom: 5.5rem;
  right: 1.5rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
  z-index: 999;
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.08);
  color: #fff;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

/* Footer */
.footer {
  position: relative;
  z-index: 1;
  padding: 1.5rem 1.5rem;
  border-top: 1px solid var(--border-glass);
  background: rgba(0, 0, 0, 0.2);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

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

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

/* Scroll top */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 0 20px var(--accent-glow);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: scale(1.05);
  color: var(--bg-dark);
}

/* Agente de ayuda */
.agent-float {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px var(--accent-glow);
  z-index: 998;
  cursor: pointer;
  transition: var(--transition);
}

.agent-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px var(--accent-glow);
}

.agent-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.agent-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.agent-panel {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 100%;
  max-width: 380px;
  max-height: calc(100vh - 5rem);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.96);
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
}

.agent-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.agent-panel-inner {
  display: flex;
  flex-direction: column;
  max-height: 100%;
  overflow: hidden;
  border-radius: 16px;
}

.agent-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-glass);
  flex-shrink: 0;
}

.agent-panel-header h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.agent-panel-header h3 i {
  color: var(--accent);
}

.agent-close {
  width: 36px;
  height: 36px;
  padding: 0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}

.agent-close:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.agent-panel-body {
  padding: 1.25rem;
  overflow-y: auto;
  flex: 1;
}

.agent-welcome {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.agent-faq {
  margin-bottom: 1.25rem;
}

.agent-faq-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.agent-faq-list {
  list-style: none;
  margin: 0 0 0.5rem;
  padding: 0;
}

.agent-faq-link {
  display: block;
  padding: 0.5rem 0;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.2s;
}

.agent-faq-link:hover {
  color: var(--accent);
}

.agent-link {
  font-size: 0.9rem;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.agent-link:hover {
  text-decoration: underline;
}

.agent-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.agent-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
}

.agent-btn:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.agent-btn-primary {
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-dark);
  border: none;
}

.agent-btn-wa {
  background: #25d366;
  color: #fff;
  border: none;
}

/* ========== Responsive: tablet y móvil ========== */
@media (max-width: 900px) {
  .header {
    padding: 0.75rem 1rem;
  }

  .header .container {
    flex-wrap: nowrap;
    gap: 0.5rem;
  }

  .header .btn-nav {
    display: none; /* En móvil el CTA está en el hero; evita saturar el header */
  }

  .logo {
    font-size: 1.25rem;
    min-width: 0;
    overflow: visible;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .section--hero.hero {
    padding: 5rem 1rem 3rem;
    min-height: auto;
  }

  .hero-content p {
    max-width: 100%;
  }

  .hero-visual {
    order: -1;
  }

  .glow-box {
    max-width: 100% !important;
    height: 260px;
  }

  .glow-box .code-preview {
    font-size: 0.75rem;
    padding: 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-desktop {
    display: none;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
  }

  .nav-backdrop {
    display: block;
  }

  .nav-backdrop.visible {
    opacity: 1;
    visibility: visible;
  }

  .nav-mobile {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(280px, 85vw);
    max-width: 100%;
    background: var(--bg-dark);
    border-left: 1px solid var(--border-glass);
    padding: 5rem 1.25rem 2rem;
    gap: 0;
    list-style: none;
    margin: 0;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 1002;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-mobile.open {
    transform: translateX(0);
  }

  .nav-mobile li {
    margin: 0;
    border-bottom: 1px solid var(--border-glass);
  }

  .nav-mobile li:last-child {
    border-bottom: none;
  }

  .nav-mobile a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    padding: 1rem 0;
    min-height: 48px;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .agent-float {
    bottom: 1rem;
    left: 1rem;
    width: 52px;
    height: 52px;
    font-size: 1.35rem;
  }

  .agent-panel {
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100%;
    max-height: 85vh;
    border-radius: 16px 16px 0 0;
  }

  .section {
    padding: 3rem 1rem;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .sistema-detalle-overlay {
    align-items: flex-end;
    padding: 1.5rem 1rem;
  }

  .sistema-detalle-panel {
    margin: 1rem;
    padding: 1.5rem;
    max-height: calc(100vh - 2rem);
  }

  .sistema-detalle-cerrar {
    top: 0.75rem;
    right: 0.75rem;
    width: 44px;
    height: 44px;
  }

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

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

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }

  .cookie-banner-inner {
    flex-direction: column;
    text-align: center;
    padding: 1rem;
  }

  .cookie-banner-btns {
    flex-wrap: wrap;
    justify-content: center;
  }

  .whatsapp-float {
    bottom: 5rem;
    right: 1rem;
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }

  .scroll-top {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 44px;
    height: 44px;
  }
}

/* Móvil pequeño (celulares en portrait) */
@media (max-width: 480px) {
  .header {
    padding: 0.6rem 0.75rem;
  }

  .logo {
    font-size: 1.1rem;
    letter-spacing: 0.05em;
  }

  .section--hero.hero {
    padding: 4.5rem 0.75rem 2.5rem;
  }

  .hero-content h1 {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .hero-content p {
    font-size: 1rem;
  }

  .glow-box {
    height: 220px;
  }

  .glow-box .code-preview {
    font-size: 0.7rem;
    padding: 0.75rem;
  }

  .section {
    padding: 2.5rem 0.75rem;
  }

  .section-title__heading {
    font-size: 1.5rem;
  }

  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .sistema-card {
    padding: 1.5rem;
  }

  .pricing-card {
    padding: 1.5rem;
  }

  .pricing-card .precio {
    font-size: 2rem;
  }

  .contact-item {
    padding: 1rem;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 0.75rem 1rem;
  }

  .btn-nav {
    padding: 0.55rem 1rem;
    font-size: 0.95rem;
  }

  .footer {
    padding: 1rem 0.75rem;
  }

  .footer-copy,
  .footer-links a {
    font-size: 0.85rem;
  }

  .nav-mobile {
    width: min(260px, 90vw);
  }
}

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