/* Causa Legal · hoja de estilos común */
:root {
  --petroleo: #2c6378;
  --petroleo-oscuro: #1d4656;
  --tinta: #1f2a30;
  --texto: #3d4a52;
  --suave: #6b7a83;
  --linea: #dfe5e8;
  --gris: #f2f2f2;
  --blanco: #ffffff;
  --acento: #7a1f4b;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ancho: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--serif);
  color: var(--texto);
  background: var(--blanco);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--petroleo); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; color: var(--tinta); line-height: 1.2; margin: 0; }
.envoltura { max-width: var(--ancho); margin: 0 auto; padding-inline: 24px; }
.saltar { position: absolute; left: -9999px; }
.saltar:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 100; }

/* ---------- Cabecera ---------- */
.cabecera {
  position: sticky; top: 0; z-index: 50;
  background: var(--blanco);
  border-bottom: 1px solid var(--linea);
}
.cabecera .envoltura { display: flex; align-items: center; gap: 28px; height: 72px; }
.marca { display: flex; flex-direction: column; line-height: 1; color: var(--tinta); }
.marca:hover { text-decoration: none; }
.marca strong { font-weight: 400; font-size: 27px; letter-spacing: .06em; }
.marca strong span { color: var(--petroleo); }
.marca small { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--suave); margin-top: 5px; }
.separador { width: 1px; height: 40px; background: var(--linea); }
.menu { display: flex; gap: 26px; margin-left: auto; list-style: none; padding: 0; margin-block: 0; }
.menu a { color: var(--tinta); font-size: 16px; white-space: nowrap; }
.cabecera .boton { white-space: nowrap; }
.menu a[aria-current="page"] { color: var(--petroleo); border-bottom: 2px solid var(--petroleo); padding-bottom: 3px; }
.boton {
  display: inline-block; border: 1px solid var(--petroleo); color: var(--petroleo);
  padding: 9px 18px; font-family: var(--sans); font-size: 14px; letter-spacing: .02em; background: transparent;
  cursor: pointer; transition: background .15s, color .15s;
}
.boton:hover { background: var(--petroleo); color: #fff; text-decoration: none; }
.boton.lleno { background: var(--petroleo); color: #fff; }
.boton.lleno:hover { background: var(--petroleo-oscuro); }
.boton.claro { border-color: #fff; color: #fff; }
.boton.claro:hover { background: #fff; color: var(--petroleo); }
.conmutador { display: none; margin-left: auto; background: none; border: 0; padding: 8px; cursor: pointer; }
.conmutador span { display: block; width: 24px; height: 2px; background: var(--tinta); margin: 5px 0; }

/* ---------- Banner (hero) ---------- */
.banner {
  position: relative; color: #fff; overflow: hidden;
  background:
    linear-gradient(100deg, rgba(20,40,50,.88) 0%, rgba(29,70,86,.62) 45%, rgba(29,70,86,.15) 100%),
    url("fachada.svg") center / cover no-repeat,
    var(--petroleo-oscuro);
}
.banner .envoltura { padding-top: 96px; }
.banner .etiqueta { font-family: var(--sans); font-size: 13px; letter-spacing: .04em; opacity: .9; }
.banner h1 { color: #fff; font-size: clamp(34px, 5vw, 54px); margin-top: 10px; }
.banner .cargo { font-size: clamp(20px, 2.4vw, 26px); margin: 12px 0 0; opacity: .95; }
.pestanas { display: flex; gap: 4px; margin-top: 64px; overflow-x: auto; scrollbar-width: none; }
.pestanas::-webkit-scrollbar { display: none; }
.pestanas a {
  flex: 0 0 auto; background: #fff; color: var(--tinta); padding: 11px 26px 9px;
  font-size: 16px; border-bottom: 3px solid transparent; white-space: nowrap;
}
.pestanas a:hover { text-decoration: none; color: var(--petroleo); }
.pestanas a.activa { color: var(--petroleo); border-bottom-color: var(--acento); }

/* ---------- Secciones ---------- */
.seccion { padding-block: 72px; }
.seccion.gris { background: var(--gris); }
.antetitulo { font-family: var(--sans); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--petroleo); margin: 0 0 12px; }
.seccion h2 { font-size: clamp(28px, 3.4vw, 38px); margin-bottom: 20px; }
.entradilla { font-size: clamp(21px, 2.4vw, 27px); line-height: 1.45; color: var(--tinta); margin: 0; }

/* Ficha principal (foto + datos) */
.ficha { display: grid; grid-template-columns: 250px 1fr; gap: 24px 56px; }
.retrato { position: relative; padding: 0 22px 0 0; align-self: start; }
.retrato::before {
  content: ""; position: absolute; top: -22px; right: 0; width: 58px; height: 120px; background: var(--petroleo);
}
.retrato img { position: relative; width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: top; }
.retrato figcaption { font-family: var(--sans); font-size: 13px; color: var(--suave); margin-top: 12px; }
.datos { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 48px; margin-top: 40px; }
.datos h3 { font-family: var(--sans); font-size: 13px; font-weight: 600; color: var(--petroleo); letter-spacing: .03em; margin-bottom: 14px; }
.lineas { list-style: none; padding: 0; margin: 0; }
.lineas li { display: flex; gap: 12px; align-items: baseline; margin-bottom: 10px; }
.lineas svg { flex: 0 0 15px; width: 15px; height: 15px; fill: var(--suave); transform: translateY(2px); }
.lineas .grande { font-size: 21px; color: var(--tinta); }
.mapa { background: #e4ecef; aspect-ratio: 16 / 9; position: relative; overflow: hidden; }
.mapa svg { width: 100%; height: 100%; }

/* Franja "siguiente sección" */
.franja { background: var(--petroleo); color: #fff; text-align: center; padding-block: 34px; }
.franja a { color: #fff; display: block; }
.franja a:hover { text-decoration: none; }
.franja small { font-family: var(--sans); font-size: 13px; opacity: .85; }
.franja span { display: block; font-size: clamp(24px, 3vw, 32px); margin-top: 6px; }

/* Rejillas */
.tres { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.valor { border-top: 3px solid var(--petroleo); padding-top: 20px; }
.valor h3 { font-size: 22px; margin-bottom: 10px; }
.valor p { margin: 0; }

.areas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--linea); border: 1px solid var(--linea); margin-top: 36px; }
.area { background: #fff; padding: 30px 28px 32px; display: flex; flex-direction: column; color: var(--texto); transition: background .15s; }
a.area:hover { text-decoration: none; background: #f7fafb; }
.area h3 { font-size: 23px; margin-bottom: 10px; }
.area p { margin: 0 0 18px; flex: 1; }
.area .mas { font-family: var(--sans); font-size: 14px; color: var(--petroleo); }
.area.destacada { background: var(--petroleo); color: #eaf2f5; }
.area.destacada h3, .area.destacada .mas { color: #fff; }
a.area.destacada:hover { background: var(--petroleo-oscuro); }

.dos { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: start; }
.credenciales { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--linea); }
.credenciales li { padding: 14px 0; border-bottom: 1px solid var(--linea); display: grid; grid-template-columns: 130px 1fr; gap: 16px; }
.credenciales b { font-family: var(--sans); font-size: 13px; font-weight: 600; color: var(--petroleo); padding-top: 3px; }

.pasos { counter-reset: paso; list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.pasos li { counter-increment: paso; }
.pasos li::before { content: counter(paso, decimal-leading-zero); display: block; font-size: 34px; color: var(--petroleo); margin-bottom: 8px; }
.pasos h3 { font-size: 20px; margin-bottom: 6px; }
.pasos p { margin: 0; font-size: 16px; }

.preguntas details { border-bottom: 1px solid var(--linea); padding: 18px 0; }
.preguntas summary { cursor: pointer; font-size: 20px; color: var(--tinta); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.preguntas summary::-webkit-details-marker { display: none; }
.preguntas summary::after { content: "+"; color: var(--petroleo); font-size: 26px; line-height: 1; }
.preguntas details[open] summary::after { content: "–"; }
.preguntas details p { margin: 12px 0 0; }

.llamada { background: var(--petroleo-oscuro); color: #dce8ec; }
.llamada .envoltura { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.llamada h2 { color: #fff; margin-bottom: 8px; }
.llamada p { margin: 0; max-width: 620px; }
.llamada .acciones { display: flex; gap: 12px; flex-wrap: wrap; }

.aviso { font-family: var(--sans); font-size: 14px; background: #fff7e0; border-left: 3px solid #c9a227; padding: 14px 18px; color: #5b4a12; margin-top: 28px; }

/* Texto legal */
.legal { max-width: 820px; }
.legal h2 { font-size: 26px; margin: 36px 0 12px; }

/* ---------- Pie ---------- */
.pie { background: var(--gris); padding-block: 48px 28px; font-size: 15px; }
.pie .columnas { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
.pie h4 { font-weight: 400; font-size: 20px; color: var(--petroleo); margin: 0 0 12px; }
.pie ul { list-style: none; padding: 0; margin: 0; }
.pie li { margin-bottom: 8px; }
.pie a { color: var(--texto); }
.pie .marca strong { font-size: 22px; }
.pie .registro { font-family: var(--sans); font-size: 12px; color: var(--suave); margin-top: 14px; line-height: 1.55; }
.pie .final { border-top: 1px solid #dcdcdc; margin-top: 36px; padding-top: 18px; font-family: var(--sans); font-size: 12px; color: var(--suave); }

.whatsapp {
  position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; display: grid; place-items: center; box-shadow: 0 6px 18px rgba(0,0,0,.22);
}
.whatsapp svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .menu, .cabecera .boton, .separador { display: none; }
  .conmutador { display: block; }
  .cabecera.abierta .menu {
    display: flex; flex-direction: column; gap: 0; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--linea); padding: 8px 24px 16px;
  }
  .cabecera.abierta .menu a { display: block; padding: 12px 0; border-bottom: 1px solid var(--linea); }
  .tres, .areas { grid-template-columns: 1fr 1fr; }
  .pasos { grid-template-columns: 1fr 1fr; }
  .dos { grid-template-columns: 1fr; }
  .pie .columnas { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .banner .envoltura { padding-top: 64px; }
  .pestanas { margin-top: 40px; }
  .pestanas a { padding: 10px 16px 8px; font-size: 15px; }
  .ficha { grid-template-columns: 1fr; }
  .retrato { max-width: 230px; }
  .datos { grid-template-columns: 1fr; margin-top: 28px; }
  .tres, .areas, .pasos, .pie .columnas { grid-template-columns: 1fr; }
  .credenciales li { grid-template-columns: 1fr; gap: 2px; }
  .seccion { padding-block: 52px; }
}