/* =============================================================
   SISTEEM Ascensores — Hoja de estilos principal
   Paleta Modern Tech Industrial
   Mobile-first. Sin frameworks externos.
   ============================================================= */

/* ---------- Variables de marca ---------- */
:root {
  /* Colores principales */
  --c-primary: #0A2540;        /* Azul profundo institucional */
  --c-primary-light: #1e3a5f;
  --c-secondary: #1976D2;      /* Azul tecnología */
  --c-accent: #F59E0B;         /* Ámbar seguridad / CTA */
  --c-accent-dark: #D97706;
  --c-emergency: #DC2626;      /* Rojo emergencia 24/7 */
  --c-success: #10B981;

  /* Neutros */
  --c-dark: #0F172A;
  --c-text: #1F2937;
  --c-muted: #64748B;
  --c-border: #E2E8F0;
  --c-bg-soft: #F8FAFC;
  --c-bg-alt: #F1F5F9;
  --c-white: #FFFFFF;

  /* Tipografía */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Tamaños y espaciado */
  --container: 1200px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 6px rgba(10, 37, 64, 0.08);
  --shadow: 0 6px 20px rgba(10, 37, 64, 0.10);
  --shadow-lg: 0 20px 40px rgba(10, 37, 64, 0.14);

  /* Animación */
  --t: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset y base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-white);
  overflow-x: hidden;
}

img,
svg,
picture,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--c-secondary);
  text-decoration: none;
  transition: color var(--t);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--c-primary);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin: 0 0 1rem; }

ul, ol { padding-left: 1.25rem; margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 3.5rem 0;
}

@media (min-width: 768px) {
  section { padding: 5rem 0; }
}

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--c-muted); }
.text-accent { color: var(--c-accent); }
.bg-soft { background: var(--c-bg-soft); }
.bg-alt { background: var(--c-bg-alt); }
.bg-primary { background: var(--c-primary); color: var(--c-white); }
.bg-primary h1, .bg-primary h2, .bg-primary h3 { color: var(--c-white); }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--t);
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-accent);
  color: var(--c-primary);
  border-color: var(--c-accent);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--c-accent-dark);
  border-color: var(--c-accent-dark);
  color: var(--c-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--c-primary);
  color: var(--c-white);
}

.btn-secondary:hover {
  background: var(--c-primary-light);
  color: var(--c-white);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-white);
  border-color: var(--c-white);
}

.btn-emergency {
  background: var(--c-emergency);
  color: var(--c-white);
}

.btn-emergency:hover {
  background: #B91C1C;
  color: var(--c-white);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* ---------- Barra superior (info) ---------- */
.topbar {
  background: var(--c-primary);
  color: var(--c-white);
  font-size: 0.88rem;
  padding: 0.5rem 0;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar a {
  color: var(--c-white);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.topbar a:hover { color: var(--c-accent); }

.topbar-info {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .topbar .topbar-info { gap: 0.75rem; }
  .topbar-info span.hide-sm { display: none; }
}

/* ---------- Header / Navegación ---------- */
.header {
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--c-primary);
  letter-spacing: 0.02em;
}

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

.logo-mark {
  width: 40px;
  height: 40px;
  background: var(--c-primary);
  color: var(--c-accent);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
}

.logo-sub {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  text-transform: uppercase;
}

/* Logo imagen corporativa */
.logo-img {
  height: 58px;
  width: auto;
  display: block;
}

.logo-img-footer {
  height: 47px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  color: var(--c-text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.25rem 0;
}

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

.nav a.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-accent);
  border-radius: 3px;
}

.nav-cta {
  display: none;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--c-primary);
  border-radius: 3px;
  transition: all var(--t);
}

.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  background: var(--c-white);
  border-top: 1px solid var(--c-border);
  padding: 1rem 0 1.5rem;
}

.mobile-nav.open { display: block; }

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.mobile-nav a {
  display: block;
  padding: 0.9rem 1.25rem;
  color: var(--c-text);
  font-weight: 500;
}

.mobile-nav a:hover {
  background: var(--c-bg-soft);
  color: var(--c-primary);
}

.mobile-nav .btn {
  margin: 1rem 1.25rem 0;
  display: block;
  text-align: center;
}

@media (min-width: 1024px) {
  .nav { display: flex; }
  .nav-cta { display: inline-flex; }
  .menu-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 60%, #162f51 100%);
  color: var(--c-white);
  padding: 4rem 0 4.5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(25, 118, 210, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--c-white);
  max-width: 800px;
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: clamp(1rem, 2.3vw, 1.2rem);
  max-width: 680px;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.hero-badges {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 620px;
}

.hero-badge {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
}

.hero-badge .icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--c-accent);
  color: var(--c-primary);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
}

.hero-badge strong {
  display: block;
  font-size: 0.95rem;
  color: var(--c-white);
  margin-bottom: 0.1rem;
}

.hero-badge span {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
  line-height: 1.4;
}

@media (min-width: 768px) {
  .hero { padding: 6rem 0 6.5rem; }
  .hero-badges { grid-template-columns: repeat(4, 1fr); }
}

/* Hero interior más pequeño (subpáginas) */
.hero-inner {
  padding: 3rem 0 3.5rem;
}

.hero-inner h1 { margin-bottom: 0.75rem; }
.hero-inner .hero-lead { margin-bottom: 1rem; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  background: var(--c-bg-soft);
  padding: 0.8rem 0;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--c-border);
}

.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.breadcrumbs li {
  margin: 0;
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "›";
  margin: 0 0.5rem;
  color: var(--c-muted);
}

.breadcrumbs a {
  color: var(--c-muted);
}

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

.breadcrumbs li[aria-current] {
  color: var(--c-primary);
  font-weight: 600;
}

/* ---------- Servicios (cards) ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}

.service-card:hover {
  border-color: var(--c-secondary);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--c-secondary), var(--c-primary));
  color: var(--c-white);
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.75rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--c-muted);
  margin-bottom: 1.25rem;
}

.service-card .link-arrow {
  color: var(--c-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.service-card .link-arrow:hover {
  color: var(--c-accent-dark);
  gap: 0.5rem;
}

/* ---------- Feature list (razones) ---------- */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features { grid-template-columns: repeat(4, 1fr); }
}

.feature {
  text-align: center;
  padding: 1.5rem 1rem;
}

.feature-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.feature h4 {
  margin-bottom: 0.4rem;
  color: var(--c-primary);
}

.feature p {
  color: var(--c-muted);
  font-size: 0.94rem;
  margin: 0;
}

/* ---------- Lista check ---------- */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.55;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background: var(--c-success);
  color: var(--c-white);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  line-height: 1;
}

/* ---------- Bloque de dos columnas ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .two-col { grid-template-columns: 1fr 1fr; gap: 4rem; }
}

.two-col.reversed .visual { order: 2; }

@media (min-width: 900px) {
  .two-col.reversed .visual { order: -1; }
}

.visual-card {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  color: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(245, 158, 11, 0.2), transparent 60%);
}

.visual-card > * { position: relative; z-index: 1; }

.visual-card .big-num {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--c-accent);
  margin-bottom: 0.5rem;
}

/* ---------- Marcas ---------- */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 640px) {
  .brands-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 900px) {
  .brands-grid { grid-template-columns: repeat(5, 1fr); }
}

.brand-chip {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.05em;
  transition: all var(--t);
}

.brand-chip:hover {
  border-color: var(--c-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  color: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25), transparent 70%);
}

.cta-banner h2 {
  color: var(--c-white);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 1.75rem;
}

.cta-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color var(--t);
}

.faq-item[open] {
  border-color: var(--c-secondary);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  font-weight: 600;
  color: var(--c-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--c-accent);
  transition: transform var(--t);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "−";
  transform: rotate(0);
}

.faq-content {
  padding: 0 1.25rem 1.25rem;
  color: var(--c-text);
}

.faq-content p:last-child { margin-bottom: 0; }

/* ---------- Formulario ---------- */
.form {
  background: var(--c-white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-grid-2 { grid-template-columns: 1fr 1fr; }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-field label {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--c-primary);
}

.form-field label .required {
  color: var(--c-emergency);
  margin-left: 0.15rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--c-text);
  background: var(--c-white);
  transition: all var(--t);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-secondary);
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.15);
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-help {
  font-size: 0.85rem;
  color: var(--c-muted);
}

.form-note {
  font-size: 0.85rem;
  color: var(--c-muted);
  margin-top: 0.75rem;
}

/* Honeypot oculto */
.hp-field {
  position: absolute;
  left: -5000px;
  opacity: 0;
  pointer-events: none;
}

.form-error {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #B91C1C;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.form-success {
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #065F46;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

/* ---------- Info bloque (contacto) ---------- */
.info-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .info-block { grid-template-columns: repeat(2, 1fr); }
}

.info-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.info-item .ico {
  width: 44px;
  height: 44px;
  background: var(--c-primary);
  color: var(--c-accent);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
}

.info-item strong {
  display: block;
  color: var(--c-primary);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.info-item p, .info-item a {
  color: var(--c-text);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.info-item a:hover { color: var(--c-secondary); }

/* ---------- Botón flotante WhatsApp ---------- */
.wa-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: var(--c-white);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
  z-index: 99;
  transition: all var(--t);
  animation: wa-pulse 2.5s infinite;
}

.wa-float:hover {
  transform: scale(1.1);
  color: var(--c-white);
}

.wa-float svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35); }
  50% { box-shadow: 0 8px 24px rgba(37, 211, 102, 0.65), 0 0 0 12px rgba(37, 211, 102, 0.15); }
}

.wa-float-label {
  position: absolute;
  right: 72px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--c-primary);
  color: var(--c-white);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t);
}

.wa-float:hover .wa-float-label { opacity: 1; }

@media (max-width: 640px) {
  .wa-float { bottom: 15px; right: 15px; }
  .wa-float-label { display: none; }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--c-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 4rem 0 1.5rem;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

@media (min-width: 900px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

.footer h4 {
  color: var(--c-white);
  font-size: 1rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer a {
  color: rgba(255, 255, 255, 0.75);
  display: block;
  padding: 0.25rem 0;
  transition: color var(--t);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--c-white);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 0.85rem;
}

.footer-logo:hover { color: var(--c-white); }

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact p {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.footer-contact strong { color: var(--c-white); }

.social {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.social a {
  display: inline-flex;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  padding: 0;
  color: rgba(255, 255, 255, 0.8);
}

.social a:hover {
  background: var(--c-accent);
  color: var(--c-primary);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

/* ---------- Alertas / destacados ---------- */
.callout {
  background: #FFFBEB;
  border-left: 4px solid var(--c-accent);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
}

.callout strong { color: var(--c-primary); }

.callout-emergency {
  background: #FEF2F2;
  border-left-color: var(--c-emergency);
}

.callout-emergency strong { color: var(--c-emergency); }

/* ---------- Contenido estándar (artículos) ---------- */
.prose {
  max-width: 820px;
}

.prose h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.prose h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.prose h2:first-child,
.prose h3:first-child { margin-top: 0; }

.prose ul li,
.prose ol li {
  margin-bottom: 0.5rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.prose th, .prose td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--c-border);
  text-align: left;
}

.prose th {
  background: var(--c-bg-soft);
  font-weight: 700;
  color: var(--c-primary);
}

/* ---------- Animaciones sutiles ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Accesibilidad ---------- */
:focus-visible {
  outline: 3px solid var(--c-secondary);
  outline-offset: 2px;
}

.skip-to-main {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 0.5rem 1rem;
  background: var(--c-primary);
  color: var(--c-white);
  top: 10px;
}

.skip-to-main:focus { left: 10px; }

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ---------- Página gracias ---------- */
.thanks {
  text-align: center;
  padding: 6rem 1rem;
}

.thanks .check-big {
  width: 90px;
  height: 90px;
  background: var(--c-success);
  color: var(--c-white);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin-bottom: 1.5rem;
  animation: scale-in 0.4s ease-out;
}

@keyframes scale-in {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

/* ---------- 404 ---------- */
.error-page {
  text-align: center;
  padding: 5rem 1rem;
}

.error-page .num {
  font-size: clamp(6rem, 15vw, 10rem);
  font-weight: 900;
  color: var(--c-primary);
  line-height: 1;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   FORMULARIO DE CONTACTO - extensiones
   ============================================================ */
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
}

.form-check {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.6rem;
}
.form-check label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-weight: 400;
  color: var(--c-text);
  font-size: 0.95rem;
  line-height: 1.4;
  cursor: pointer;
}
.form-check input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--c-secondary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

/* Layout de la página contacto: formulario + aside */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .contact-layout { grid-template-columns: 1.4fr 1fr; gap: 3rem; }
}

.info-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 2px 8px rgba(10,37,64,0.06);
}
.info-card h3 {
  margin-top: 0;
  margin-bottom: 1.25rem;
  color: var(--c-primary);
}
.info-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--c-border);
}
.info-item:last-child { border-bottom: none; }
.info-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
}

/* Mapa embed */
.map-wrap {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(10,37,64,0.1);
}

/* ============================================================
   GRILLA DETALLADA DE MARCAS
   ============================================================ */
.brands-detailed {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}
@media (min-width: 640px) {
  .brands-detailed { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .brands-detailed { grid-template-columns: repeat(3, 1fr); }
}

.brand-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.brand-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(10,37,64,0.1);
  border-color: var(--c-secondary);
}
.brand-card h3 {
  color: var(--c-primary);
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-card p {
  color: var(--c-text-soft);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0;
}

/* Tabla dentro de prose ya existe; reforzamos */
.prose .ley-table,
.prose table {
  box-shadow: 0 1px 4px rgba(10,37,64,0.06);
}