:root {
  --verde: #0f6b4f;
  --verde-osc: #0a4a37;
  --verde-claro: #e6f2ed;
  --acento: #f2a516;
  --tinta: #17211d;
  --gris: #5b6763;
  --linea: #d9e2de;
  --fondo: #ffffff;
  --fondo-alt: #f5f8f6;
  --radio: 14px;
  --sombra: 0 10px 30px rgba(10, 74, 55, .10);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--tinta);
  background: var(--fondo);
  line-height: 1.6;
  font-size: 17px;
}
img { max-width: 100%; display: block; }
a { color: var(--verde); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.contenedor { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.seccion { padding: 80px 0; }
.seccion.alt { background: var(--fondo-alt); }
.seccion .intro { max-width: 760px; color: var(--gris); margin-bottom: 40px; }
.etiqueta {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--verde); background: var(--verde-claro);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 16px;
}

/* Aviso superior */
.aviso-dev {
  background: var(--acento); color: #2b1d00; font-size: .9rem; text-align: center;
  padding: 8px 16px; font-weight: 600;
}

/* Encabezado */
.encabezado {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96);
  backdrop-filter: blur(6px); border-bottom: 1px solid var(--linea);
}
.encabezado .contenedor { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--tinta); font-weight: 800; }
.marca svg { width: 34px; height: 34px; flex: none; }
.marca small { display: block; font-weight: 500; color: var(--gris); font-size: .72rem; }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { text-decoration: none; color: var(--tinta); font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--verde); }
.nav a.btn, .nav a.btn:hover { color: #fff; }
.menu-btn { display: none; background: none; border: 0; font-size: 1.6rem; cursor: pointer; color: var(--tinta); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 10px; font-weight: 700; text-decoration: none;
  border: 2px solid transparent; cursor: pointer; font-size: 1rem; font-family: inherit;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primario { background: var(--verde); color: #fff; }
.btn-primario:hover { background: var(--verde-osc); }
.btn-secundario { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-chico { padding: 10px 16px; font-size: .9rem; }

/* Hero */
.hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(242,165,22,.18), transparent 40%),
    linear-gradient(135deg, var(--verde-osc), var(--verde));
  color: #fff; padding: 90px 0 80px;
}
.hero .contenedor { display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 1.15rem; opacity: .92; max-width: 620px; }
.hero .etiqueta { background: rgba(255,255,255,.14); color: #fff; }
.hero-acciones { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-tarjeta {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radio); padding: 28px;
}
.hero-tarjeta h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .06em; opacity: .85; }
.hero-tarjeta ul { list-style: none; padding: 0; margin: 0; }
.hero-tarjeta li { padding: 10px 0 10px 30px; position: relative; border-bottom: 1px solid rgba(255,255,255,.12); }
.hero-tarjeta li:last-child { border-bottom: 0; }
.hero-tarjeta li::before { content: "✓"; position: absolute; left: 0; color: var(--acento); font-weight: 800; }

/* Tarjetas */
.rejilla { display: grid; gap: 22px; }
.r-3 { grid-template-columns: repeat(3, 1fr); }
.r-4 { grid-template-columns: repeat(4, 1fr); }
.r-2 { grid-template-columns: repeat(2, 1fr); }
.tarjeta {
  background: #fff; border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 26px; box-shadow: var(--sombra);
}
.tarjeta .num {
  width: 42px; height: 42px; border-radius: 10px; background: var(--verde-claro); color: var(--verde);
  display: grid; place-items: center; font-weight: 800; margin-bottom: 14px;
}
.tarjeta p { color: var(--gris); margin: 0; font-size: .97rem; }

/* Flujo */
.flujo { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: etapa; }
.etapa { position: relative; padding: 26px 22px; background: #fff; border: 1px solid var(--linea); }
.etapa:first-child { border-radius: var(--radio) 0 0 var(--radio); }
.etapa:last-child { border-radius: 0 var(--radio) var(--radio) 0; }
.etapa .paso { font-size: .78rem; font-weight: 800; letter-spacing: .08em; color: var(--verde); text-transform: uppercase; }
.etapa h3 { margin-top: 6px; }
.etapa p { color: var(--gris); font-size: .95rem; margin: 0; }
.etapa.nosotros { background: var(--verde-claro); border-color: var(--verde); }
.etapa .chip { display: inline-block; margin-top: 12px; font-size: .78rem; font-weight: 700; background: var(--verde); color: #fff; padding: 4px 10px; border-radius: 999px; }

/* Catálogo */
.buscador { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.buscador input, .buscador select {
  flex: 1 1 260px; padding: 13px 16px; border: 1px solid var(--linea); border-radius: 10px;
  font: inherit; background: #fff;
}
.tabla-wrap { overflow: auto; max-height: 560px; border: 1px solid var(--linea); border-radius: var(--radio); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--linea); vertical-align: top; }
th { position: sticky; top: 0; z-index: 1; background: var(--fondo-alt); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--gris); }
td code { font-weight: 700; color: var(--verde-osc); background: var(--verde-claro); padding: 2px 8px; border-radius: 6px; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
.sin-resultados { padding: 20px; color: var(--gris); display: none; }

/* Lista de errores */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 28px; }
.checklist li { padding: 14px 16px 14px 48px; background: #fff; border: 1px solid var(--linea); border-radius: 10px; position: relative; }
.checklist li::before {
  content: "✕"; position: absolute; left: 16px; top: 13px; width: 22px; height: 22px; border-radius: 50%;
  background: #fde8e6; color: #b3261e; display: grid; place-items: center; font-size: .75rem; font-weight: 800;
}

/* Bloque Monterrey */
.bloque-mty { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.datos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.dato { background: #fff; border-radius: var(--radio); padding: 22px; border: 1px solid var(--linea); }
.dato strong { display: block; font-size: 2rem; color: var(--verde); line-height: 1.1; }
.dato span { color: var(--gris); font-size: .9rem; }
.fuente { font-size: .8rem; color: var(--gris); margin-top: 12px; }

/* FAQ */
.faq details { background: #fff; border: 1px solid var(--linea); border-radius: 10px; margin-bottom: 12px; padding: 0 20px; }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 700; list-style: none; position: relative; padding-right: 30px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 1.4rem; color: var(--verde); }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--gris); }

/* Formulario */
.form-wrap { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: start; }
.form {
  background: #fff; border-radius: var(--radio); padding: 32px; box-shadow: var(--sombra);
  border: 1px solid var(--linea);
}
.campos { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo.completo { grid-column: 1 / -1; }
.campo label { font-weight: 600; font-size: .9rem; }
.campo input, .campo select, .campo textarea {
  padding: 12px 14px; border: 1px solid var(--linea); border-radius: 9px; font: inherit; background: #fff;
}
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: 2px solid var(--verde); border-color: var(--verde); }
.campo textarea { min-height: 96px; resize: vertical; }
.casillas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 16px; font-size: .92rem; }
.casillas label { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; }
.consentimiento { font-size: .85rem; color: var(--gris); display: flex; gap: 10px; align-items: flex-start; }
.hp { position: absolute; left: -9999px; }
.form-estado { margin-top: 14px; font-weight: 600; }
.form-estado.ok { color: var(--verde); }
.form-estado.error { color: #b3261e; }
.beneficios { list-style: none; padding: 0; margin: 24px 0 0; }
.beneficios li { padding: 10px 0 10px 32px; position: relative; }
.beneficios li::before { content: "→"; position: absolute; left: 0; color: var(--verde); font-weight: 800; }

/* Pie */
.pie { background: var(--tinta); color: #c9d3cf; padding: 56px 0 28px; font-size: .92rem; }
.pie .contenedor > .rejilla { grid-template-columns: 2fr 1fr 1fr; }
.pie a { color: #fff; }
.pie h4 { color: #fff; margin: 0 0 12px; }
.pie ul { list-style: none; padding: 0; margin: 0; }
.pie li { margin-bottom: 8px; }
.pie .legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 36px; padding-top: 20px; font-size: .8rem; }

.flotante {
  position: fixed; right: 18px; bottom: 18px; z-index: 60; box-shadow: 0 8px 24px rgba(0,0,0,.2);
}

/* Páginas internas */
.pagina { padding: 60px 0 80px; }
.pagina .contenedor { max-width: 820px; }
.pagina h2 { font-size: 1.4rem; margin-top: 1.6em; }

@media (max-width: 960px) {
  .hero .contenedor, .bloque-mty, .form-wrap { grid-template-columns: 1fr; }
  .r-3, .r-4 { grid-template-columns: repeat(2, 1fr); }
  .flujo { grid-template-columns: 1fr 1fr; }
  .etapa, .etapa:first-child, .etapa:last-child { border-radius: 0; }
  .pie .contenedor > .rejilla { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .seccion { padding: 56px 0; }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 20px; border-bottom: 1px solid var(--linea); align-items: flex-start; }
  .nav.abierto { display: flex; }
  .menu-btn { display: block; }
  .r-3, .r-4, .r-2, .flujo, .checklist, .campos, .casillas, .datos { grid-template-columns: 1fr; }
  .form { padding: 22px; }
  .hero { padding: 60px 0; }
}

.tarjeta code { font-weight: 700; color: var(--verde-osc); background: var(--verde-claro); padding: 1px 6px; border-radius: 6px; }

/* Autodiagnóstico */
.diag { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: start; }
.diag-resultado { display: grid; gap: 14px; }
.diag-vacio, .diag-tarjeta { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio); padding: 24px; }
.umbrales { list-style: none; padding: 0; margin: 0 0 12px; }
.umbrales li { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--linea); }
.umbrales li span { color: var(--gris); text-align: right; }
.diag-titulo { font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--gris); }
.diag-categoria { display: block; font-size: 1.35rem; margin: 4px 0 8px; color: var(--verde-osc); }
.diag-tarjeta p { margin: 0; color: var(--gris); }
.diag-tarjeta.nivel-si { border-left: 5px solid #b3261e; }
.diag-tarjeta.nivel-si .diag-categoria { color: #b3261e; }
.diag-tarjeta.nivel-posible { border-left: 5px solid var(--acento); }
.diag-tarjeta.nivel-posible .diag-categoria { color: #8a5a00; }
.diag-tarjeta.nivel-no { border-left: 5px solid var(--verde); }
.subtitulo { font-size: 1.3rem; margin: 56px 0 20px; }
.plan-lista .tarjeta { padding: 22px; }
.plan-lista h3 { margin-top: 8px; }
.frac { display: inline-block; font-size: .75rem; font-weight: 800; color: var(--verde); background: var(--verde-claro); padding: 3px 10px; border-radius: 999px; }

/* Columna Plan de Manejo del catálogo */
.filtro-plan { display: flex; align-items: center; gap: 8px; font-size: .95rem; flex-basis: 100%; }
.plan-si { display: inline-block; font-size: .78rem; font-weight: 700; color: #8a5a00; background: #fff3d6; padding: 2px 8px; border-radius: 6px; margin: 0 6px 6px 0; }
.plan-no { font-size: .85rem; color: var(--gris); }
.frac-chip { display: inline-block; font-size: .75rem; font-weight: 700; color: var(--verde-osc); border: 1px solid var(--linea); padding: 1px 7px; border-radius: 6px; margin: 0 4px 4px 0; white-space: nowrap; }
.plan-detalle { display: block; color: var(--gris); font-size: .8rem; line-height: 1.4; }

/* Página de normatividad */
.normas .contenedor { max-width: 900px; }
.normas .intro { color: var(--gris); font-size: 1.1rem; }
.indice { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 36px; }
.indice a { font-size: .9rem; text-decoration: none; border: 1px solid var(--linea); border-radius: 999px; padding: 6px 14px; background: #fff; }
.norma { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio); padding: 28px; margin-bottom: 22px; box-shadow: var(--sombra); scroll-margin-top: 90px; }
.norma h2 { font-size: 1.35rem; margin: 10px 0 6px; }
.norma .meta { color: var(--gris); font-size: .9rem; margin: 0 0 14px; }
.norma ul { padding-left: 20px; margin: 0 0 16px; }
.norma li { margin-bottom: 8px; }
.acciones-norma { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 0; font-weight: 600; font-size: .95rem; }
main.normas ~ .pie .legal { margin-top: 0; border-top: 0; padding-top: 0; }

.form-pausa h3 { font-size: 1.3rem; }
.form-pausa p { color: var(--gris); }
.aviso-legal { background: #fff3d6; border-left: 5px solid var(--acento); border-radius: 10px; padding: 16px 18px; margin: 8px 0 4px; }
.aviso-legal p { margin: 6px 0 0; font-size: .95rem; color: #4a3a12; }

/* Fondos alternos automáticos entre secciones */
main > section.seccion:nth-of-type(even) { background: var(--fondo-alt); }

/* Verificación del transportista */
.verif { display: grid; grid-template-columns: 1.6fr 1fr; gap: 28px; align-items: start; }
.verif-lista { list-style: none; counter-reset: v; padding: 0; margin: 0; display: grid; gap: 10px; }
.verif-lista li {
  counter-increment: v; display: flex; gap: 16px; align-items: center; justify-content: space-between;
  background: #fff; border: 1px solid var(--linea); border-radius: 10px; padding: 14px 16px 14px 52px; position: relative;
}
.verif-lista li::before {
  content: counter(v); position: absolute; left: 14px; top: 14px; width: 26px; height: 26px; border-radius: 8px;
  background: var(--verde-claro); color: var(--verde); font-weight: 800; display: grid; place-items: center; font-size: .85rem;
}
.verif-lista p { margin: 0; font-size: .95rem; }
.verif-lista small { display: block; color: var(--gris); font-size: .8rem; margin-top: 4px; }
.opciones { display: flex; gap: 6px; flex: none; }
.opciones label { cursor: pointer; }
.opciones input { position: absolute; opacity: 0; }
.opciones span { display: inline-block; padding: 6px 12px; border: 1px solid var(--linea); border-radius: 8px; font-size: .85rem; font-weight: 600; background: #fff; }
.opciones input:checked + span { background: var(--verde); border-color: var(--verde); color: #fff; }
.opciones input[value="no"]:checked + span { background: #b3261e; border-color: #b3261e; }
.opciones input[value="nose"]:checked + span { background: var(--acento); border-color: var(--acento); color: #2b1d00; }
.opciones input:focus-visible + span { outline: 2px solid var(--verde); outline-offset: 2px; }
.verif-resultado { position: sticky; top: 90px; background: #fff; border: 1px solid var(--linea); border-radius: var(--radio); padding: 24px; box-shadow: var(--sombra); }
.verif-resultado p { color: var(--gris); }
.verif-resultado.nivel-si { border-left: 5px solid #b3261e; }
.verif-resultado.nivel-posible { border-left: 5px solid var(--acento); }
.verif-resultado.nivel-no { border-left: 5px solid var(--verde); }

@media (max-width: 960px) {
  .diag, .verif { grid-template-columns: 1fr; }
  .verif-resultado { position: static; }
}
@media (max-width: 720px) {
  .verif-lista li { flex-direction: column; align-items: flex-start; }
}