/* Marceval · Reformas integrales — sistema de marca
   Azul #12273F · Ámbar #E7A23B · Cal #F5F2EA · Arena #EAE6DD */

:root {
  --azul: #12273F;
  --azul-700: #1A3654;
  --azul-900: #0C1C30;
  --ambar: #E7A23B;
  --ambar-600: #C9832A;
  --cal: #F5F2EA;
  --arena: #EAE6DD;
  --hormigon: #6C7480;
  --texto: #4A5462;
  --tinta: #1C1B18;
  --linea: rgba(20, 20, 15, .15);
  --linea-suave: rgba(20, 22, 15, .08);
  --sombra: 0 16px 46px -22px rgba(15, 25, 40, .3);
  --sombra-alta: 0 20px 44px -20px rgba(10, 25, 45, .55);
  --radio: 20px;
  --ancho: 1180px;
  --sans: 'Archivo', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--arena);
  color: var(--tinta);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--azul); text-decoration: none; }
a:hover { color: var(--ambar-600); }

h1, h2, h3, h4 {
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.05;
  margin: 0;
  color: var(--azul);
}

p { margin: 0; }

.contenedor {
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 0 24px;
}

.saltar {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--azul);
  color: var(--cal);
  padding: 12px 20px;
  z-index: 100;
}
.saltar:focus { left: 8px; top: 8px; color: var(--cal); }

:focus-visible {
  outline: 3px solid var(--ambar);
  outline-offset: 3px;
}

/* ---------- Etiqueta mono (elemento de marca) ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--hormigon);
  margin: 0;
}

.titulo-seccion {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
}
.titulo-seccion .eyebrow { color: var(--azul); white-space: nowrap; }
.titulo-seccion::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--linea);
}

/* ---------- Logo ---------- */

.logo { display: flex; align-items: center; gap: 12px; }
.logo:hover { color: inherit; }

.logo-marca {
  width: 46px;
  height: 46px;
  flex: none;
  background: linear-gradient(158deg, #1A3654, #0D1E33);
  border-radius: 24%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06);
}
.logo-marca svg { width: 62%; height: 62%; overflow: visible; }

.logo-texto { display: flex; flex-direction: column; gap: 3px; }
.logo-nombre {
  font-weight: 900;
  font-size: 21px;
  letter-spacing: -.01em;
  line-height: 1;
  color: var(--azul);
}
.logo-claim {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 8.5px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--azul);
}

/* ---------- Cabecera ---------- */

.cabecera {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(234, 230, 221, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.cabecera-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 24px;
  max-width: var(--ancho);
  margin: 0 auto;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--texto);
}
.nav a:hover { color: var(--azul); }

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
  padding: 15px 24px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; flex: none; }

.btn-primario {
  background: var(--ambar);
  color: var(--azul-900);
  box-shadow: 0 10px 22px -12px rgba(201, 131, 42, .9);
}
.btn-primario:hover { background: #f0ae4b; color: var(--azul-900); }

.btn-oscuro {
  background: var(--azul);
  color: var(--cal);
  box-shadow: 0 10px 24px -14px rgba(12, 28, 48, .9);
}
.btn-oscuro:hover { background: var(--azul-700); color: var(--cal); }

.btn-linea {
  background: transparent;
  color: var(--azul);
  border-color: rgba(18, 39, 63, .3);
}
.btn-linea:hover { background: rgba(18, 39, 63, .05); color: var(--azul); }

.btn-claro {
  background: rgba(245, 242, 234, .1);
  color: var(--cal);
  border-color: rgba(245, 242, 234, .3);
}
.btn-claro:hover { background: rgba(245, 242, 234, .18); color: var(--cal); }

/* ---------- Hero ---------- */

.hero { padding: 68px 0 76px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(38px, 5.6vw, 64px);
  margin: 18px 0 22px;
}
.hero h1 em {
  font-style: normal;
  color: var(--ambar-600);
}
.hero-texto {
  font-size: 19px;
  line-height: 1.55;
  color: var(--texto);
  max-width: 30em;
}
.hero-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-nota {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--hormigon);
  margin-top: 18px;
}

.hero-panel {
  background: linear-gradient(158deg, #173150, #0C1C30);
  border-radius: var(--radio);
  padding: 40px 34px;
  box-shadow: var(--sombra-alta);
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.hero-panel .eyebrow { color: var(--ambar); }
.hero-panel-cifra {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(245, 242, 234, .14);
}
.hero-panel-cifra:last-of-type { border-bottom: 0; padding-bottom: 0; }
.hero-panel-cifra strong {
  font-weight: 900;
  font-size: 26px;
  letter-spacing: -.01em;
  color: var(--cal);
  line-height: 1.15;
}
.hero-panel-cifra span {
  font-size: 14.5px;
  line-height: 1.45;
  color: rgba(245, 242, 234, .72);
}

/* ---------- Franja de confianza ---------- */

.franja {
  background: var(--azul);
  color: var(--cal);
  padding: 18px 0;
}
.franja-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 34px;
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 0 24px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.franja-inner span { display: flex; align-items: center; gap: 9px; }
.cuadro {
  width: 8px;
  height: 8px;
  background: var(--ambar);
  border-radius: 2px;
  flex: none;
}

/* ---------- Secciones ---------- */

.seccion { padding: 74px 0; }
.seccion-cal { background: var(--cal); }

/* Compensa la cabecera fija al saltar con anclas */
[id] { scroll-margin-top: 92px; }

.seccion h2 {
  font-size: clamp(30px, 3.8vw, 42px);
  margin-bottom: 16px;
}
.seccion-intro {
  font-size: 18px;
  color: var(--texto);
  max-width: 62ch;
  margin-bottom: 40px;
}

/* ---------- Rejilla de servicios ---------- */

.rejilla {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.tarjeta {
  background: #fff;
  border: 1px solid var(--linea-suave);
  border-radius: 16px;
  padding: 28px 26px;
  box-shadow: var(--sombra);
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.tarjeta h3 {
  font-size: 20px;
  letter-spacing: -.01em;
}
.tarjeta p {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--texto);
}
.tarjeta-num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--ambar-600);
}

/* ---------- Proceso ---------- */

.pasos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 22px;
  counter-reset: paso;
}
.paso {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 22px;
  border-top: 2px solid rgba(18, 39, 63, .18);
}
.paso::before {
  counter-increment: paso;
  content: "0" counter(paso);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--ambar-600);
}
.paso h3 { font-size: 19px; }
.paso p { font-size: 15.5px; color: var(--texto); }

/* ---------- Zonas ---------- */

.etiquetas {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.etiqueta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--azul);
  border: 1px solid rgba(18, 39, 63, .25);
  background: rgba(18, 39, 63, .03);
  border-radius: 999px;
  padding: 6px 13px;
}

/* ---------- FAQ ---------- */

.faq { max-width: 820px; }
.faq details {
  border-bottom: 1px solid var(--linea);
  padding: 4px 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 40px 20px 0;
  font-weight: 700;
  font-size: 18px;
  color: var(--azul);
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 26px;
  font-weight: 400;
  color: var(--ambar-600);
  line-height: 1;
}
.faq details[open] summary::after { content: "–"; }
.faq details p {
  padding: 0 40px 22px 0;
  color: var(--texto);
  font-size: 16.5px;
}

/* ---------- CTA final ---------- */

.cta {
  background: linear-gradient(120deg, #173150, #0C1C30);
  border-radius: var(--radio);
  padding: 54px 46px;
  box-shadow: var(--sombra-alta);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta h2 { color: var(--cal); font-size: clamp(28px, 3.4vw, 38px); }
.cta p { color: rgba(245, 242, 234, .78); margin-top: 12px; max-width: 44ch; }
.cta .eyebrow { color: var(--ambar); margin-bottom: 12px; }
.cta-acciones { display: flex; flex-direction: column; gap: 12px; }
.cta-tel {
  font-weight: 900;
  font-size: 30px;
  color: var(--cal);
  letter-spacing: .01em;
}
.cta-tel:hover { color: var(--ambar); }

/* ---------- Pie ---------- */

.pie {
  background: var(--azul-900);
  color: rgba(245, 242, 234, .72);
  padding: 54px 0 34px;
  font-size: 15px;
}
.pie a { color: rgba(245, 242, 234, .72); }
.pie a:hover { color: var(--ambar); }
.pie-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(245, 242, 234, .14);
}
.pie h3 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ambar);
  margin-bottom: 14px;
}
.pie ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.pie .logo-nombre { color: var(--cal); }
.pie .logo-claim { color: rgba(245, 242, 234, .6); }
.pie-legal {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(245, 242, 234, .5);
}

/* ---------- Botón flotante WhatsApp ---------- */

.flotante {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 60;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px -10px rgba(10, 25, 45, .6);
}
.flotante svg { width: 30px; height: 30px; }
.flotante:hover { transform: scale(1.05); }

/* ---------- Blog ---------- */

.migas {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--hormigon);
  padding: 26px 0 0;
}
.migas a { color: var(--hormigon); }
.migas a:hover { color: var(--ambar-600); }

.articulo {
  max-width: 760px;
  margin: 0 auto;
  padding: 26px 24px 80px;
}
.articulo h1 {
  font-size: clamp(32px, 4.6vw, 46px);
  margin: 18px 0 16px;
}
.articulo-meta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--hormigon);
  padding-bottom: 26px;
  border-bottom: 1px solid var(--linea);
  margin-bottom: 34px;
}
.articulo-entradilla {
  font-size: 20px;
  line-height: 1.55;
  color: var(--azul);
  font-weight: 500;
  margin-bottom: 30px;
}
.articulo h2 {
  font-size: 28px;
  margin: 44px 0 16px;
}
.articulo h3 {
  font-size: 21px;
  margin: 32px 0 12px;
}
.articulo p {
  margin-bottom: 18px;
  color: var(--tinta);
}
.articulo ul, .articulo ol {
  margin: 0 0 22px;
  padding-left: 22px;
  color: var(--tinta);
}
.articulo li { margin-bottom: 9px; }
.articulo a {
  color: var(--ambar-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.articulo strong { color: var(--azul); }

.tabla-envoltorio { overflow-x: auto; margin: 0 0 24px; }
.articulo table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15.5px;
  min-width: 460px;
}
.articulo th {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cal);
  background: var(--azul);
  padding: 12px 14px;
}
.articulo td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--linea);
  color: var(--texto);
}
.articulo tbody tr:nth-child(odd) { background: rgba(245, 242, 234, .6); }

.aviso {
  background: var(--cal);
  border-left: 3px solid var(--ambar);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin: 0 0 26px;
  font-size: 16px;
  color: var(--texto);
}
.aviso strong { color: var(--azul); }

.cta-articulo {
  background: linear-gradient(158deg, #173150, #0C1C30);
  border-radius: 16px;
  padding: 32px 30px;
  margin: 42px 0 0;
  box-shadow: var(--sombra-alta);
}
.cta-articulo h2 { color: var(--cal); font-size: 24px; margin: 10px 0 12px; }
.cta-articulo p { color: rgba(245, 242, 234, .78); font-size: 16px; }
.cta-articulo .eyebrow { color: var(--ambar); }
.cta-articulo .btn { margin-top: 20px; }

.lista-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.post-card {
  background: #fff;
  border: 1px solid var(--linea-suave);
  border-radius: 16px;
  padding: 28px 26px;
  box-shadow: var(--sombra);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.post-card h2, .post-card h3 { font-size: 21px; line-height: 1.2; }
.post-card p { font-size: 15.5px; color: var(--texto); }
.post-card .eyebrow { font-size: 11px; color: var(--ambar-600); }
.post-card .enlace {
  font-weight: 700;
  font-size: 15px;
  color: var(--ambar-600);
  margin-top: auto;
  padding-top: 6px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .pie-grid { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { padding: 46px 0 54px; }
  .seccion { padding: 54px 0; }
  .cta { padding: 38px 26px; }
  .pie-grid { grid-template-columns: 1fr; gap: 30px; }
  .articulo h2 { font-size: 25px; }
  .contenedor { padding: 0 18px; }

  /* Cabecera compacta: el número de teléfono no debe partirse */
  .cabecera-inner { padding: 10px 16px; gap: 12px; }
  .logo-marca { width: 40px; height: 40px; }
  .logo-nombre { font-size: 18px; }
  .logo-claim { font-size: 7.5px; letter-spacing: .2em; }
  .cabecera .btn { font-size: 15px; padding: 12px 15px; gap: 7px; }
  .cabecera .btn svg { width: 16px; height: 16px; }

  /* El botón flotante de WhatsApp no debe tapar la última línea */
  body { padding-bottom: 0; }
  .flotante { right: 14px; bottom: 14px; width: 54px; height: 54px; }
}

@media (max-width: 380px) {
  .logo-claim { display: none; }
  .cabecera .btn { font-size: 14px; padding: 11px 13px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}