/* Autor: Marcelino Benavides L
   Hoja única del sitio institucional www.gruposunroad.mx (Roadsun Servicios).
   Paleta tomada de los tokens --sunroad-* del CRM. */
:root {
  --sunroad-primary: #1e3a5f;
  --sunroad-primary-hover: #16304f;
  --sunroad-primary-light: #2b5a8f;
  --sunroad-accent: #e85d2a;
  --sunroad-background: #f8f9fb;
  --sunroad-surface: #ffffff;
  --sunroad-surface-muted: #f1f3f6;
  --sunroad-ink: #14202e;
  --sunroad-ink-muted: #4a5868;
  --sunroad-border: #dde3ea;
  --sunroad-night: #0d1b2a;
  --ancho: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--sunroad-ink);
  background: var(--sunroad-background);
}
a { color: var(--sunroad-primary-light); }
a:hover { color: var(--sunroad-accent); }
img { max-width: 100%; height: auto; }

.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 20px; }

/* Encabezado */
.encabezado {
  background: var(--sunroad-night);
  position: sticky; top: 0; z-index: 10;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .25);
}
.encabezado .contenedor {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 72px; flex-wrap: wrap;
}
.marca img { display: block; height: 52px; width: auto; }
.menu { display: flex; gap: 22px; flex-wrap: wrap; }
.menu a { color: #ffffff; text-decoration: none; font-weight: 600; font-size: 15px; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--sunroad-accent); }

/* Portada */
.portada {
  background: linear-gradient(135deg, var(--sunroad-night) 0%, var(--sunroad-primary) 60%, var(--sunroad-primary-light) 100%);
  color: #ffffff;
  padding: 80px 0 72px;
}
.portada h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.15; margin: 0 0 16px; }
.portada p { font-size: 19px; max-width: 720px; margin: 0 0 28px; opacity: .92; }
.etiqueta {
  display: inline-block; font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, .4); border-radius: 999px; padding: 4px 14px; margin-bottom: 18px;
}
.boton {
  display: inline-block; background: var(--sunroad-accent); color: #ffffff; text-decoration: none;
  font-weight: 700; padding: 12px 26px; border-radius: 8px;
}
.boton:hover { color: #ffffff; filter: brightness(1.08); }
.boton.secundario { background: transparent; border: 2px solid #ffffff; margin-left: 10px; }

/* Secciones */
.seccion { padding: 64px 0; }
.seccion.alterna { background: var(--sunroad-surface); }
.seccion h2 { font-size: 30px; margin: 0 0 12px; color: var(--sunroad-primary); }
.seccion .entrada { color: var(--sunroad-ink-muted); max-width: 760px; margin: 0 0 32px; }

.rejilla { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.tarjeta {
  background: var(--sunroad-surface); border: 1px solid var(--sunroad-border); border-radius: 12px;
  padding: 24px; border-top: 4px solid var(--sunroad-accent);
}
.seccion.alterna .tarjeta { background: var(--sunroad-background); }
.tarjeta h3 { margin: 0 0 8px; font-size: 19px; color: var(--sunroad-primary); }
.tarjeta p { margin: 0; color: var(--sunroad-ink-muted); }

.ficha { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.ficha dl { margin: 0; display: grid; grid-template-columns: 170px 1fr; gap: 8px 16px; }
.ficha dt { font-weight: 700; color: var(--sunroad-primary); }
.ficha dd { margin: 0; }

/* Documentos legales */
.documento { background: var(--sunroad-surface); padding: 56px 0 72px; }
.documento .contenedor { max-width: 900px; }
.documento h1 { color: var(--sunroad-primary); font-size: 34px; margin: 0 0 6px; }
.documento .vigencia { color: var(--sunroad-ink-muted); margin: 0 0 32px; }
.documento h2 {
  color: var(--sunroad-primary); font-size: 21px; margin: 36px 0 12px;
  padding-bottom: 6px; border-bottom: 2px solid var(--sunroad-surface-muted);
}
.documento h3 { font-size: 17px; margin: 20px 0 6px; }
.documento p, .documento li { text-align: justify; }
.documento ul, .documento ol { padding-left: 24px; }
.documento li { margin-bottom: 6px; }
.recuadro {
  background: var(--sunroad-surface-muted); border-left: 4px solid var(--sunroad-primary-light);
  border-radius: 6px; padding: 16px 20px; margin: 16px 0;
}
.indice { columns: 2; column-gap: 32px; }
@media (max-width: 640px) { .indice { columns: 1; } }

/* Pie */
.pie { background: var(--sunroad-night); color: #c9d3de; padding: 48px 0 24px; font-size: 15px; }
.pie a { color: #ffffff; }
.pie a:hover { color: var(--sunroad-accent); }
.pie .columnas { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.pie h4 { color: #ffffff; margin: 0 0 10px; font-size: 16px; }
.pie p { margin: 0 0 6px; }
.pie ul { list-style: none; margin: 0; padding: 0; }
.pie li { margin-bottom: 6px; }
.pie .legal { border-top: 1px solid rgba(255, 255, 255, .15); margin-top: 32px; padding-top: 18px; font-size: 13px; text-align: center; }

@media (max-width: 640px) {
  .ficha dl { grid-template-columns: 1fr; }
  .boton.secundario { margin: 12px 0 0; }
  .portada { padding: 56px 0; }
  .documento p, .documento li { text-align: left; }
}