/* DCC Ingeniería y Construcción · sitio institucional */

:root {
  --fondo: #f4f2ee;
  --papel: #fbfaf7;
  --tinta: #13202e;
  --tenue: #586371;
  --linea: #d8d3c9;
  --linea-suave: #e6e2da;
  --marino: #13283f;
  --marino-tinta: #f4f2ee;
  --acento: #b8741f;
  --acento-suave: #f3e6d2;
  --plano: #1f4e79;
  --plano-tenue: #8fa6bd;
  --sombra: 0 1px 2px rgb(19 32 46 / 6%), 0 8px 24px rgb(19 32 46 / 6%);
  --ancho: 1160px;
  --sans: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --fondo: #0d1621;
    --papel: #121e2b;
    --tinta: #e7eaee;
    --tenue: #9aa6b4;
    --linea: #263749;
    --linea-suave: #1c2a39;
    --marino: #1a3350;
    --marino-tinta: #e7eaee;
    --acento: #e0a24c;
    --acento-suave: #2c2416;
    --plano: #8fb6dc;
    --plano-tenue: #4d6680;
    --sombra: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 25%);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --fondo: #0d1621;
  --papel: #121e2b;
  --tinta: #e7eaee;
  --tenue: #9aa6b4;
  --linea: #263749;
  --linea-suave: #1c2a39;
  --marino: #1a3350;
  --marino-tinta: #e7eaee;
  --acento: #e0a24c;
  --acento-suave: #2c2416;
  --plano: #8fb6dc;
  --plano-tenue: #4d6680;
  --sombra: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 25%);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}
img,
svg {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: balance;
}
p {
  margin: 0;
  text-wrap: pretty;
}

.hoja {
  width: 100%;
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 0 16px;
}
@media (min-width: 720px) {
  .hoja {
    padding: 0 32px;
  }
}

.etq {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tenue);
}
.mono {
  font-family: var(--mono);
  font-size: 0.94em;
}

.saltar {
  position: absolute;
  left: 16px;
  top: -60px;
  padding: 8px 14px;
  background: var(--marino);
  color: var(--marino-tinta);
  border-radius: 6px;
  z-index: 20;
}
.saltar:focus {
  top: 12px;
}

:focus-visible {
  outline: 2px solid var(--acento);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Cabecera ─────────────────────────────────────────── */

.cabecera {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--fondo) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--linea-suave);
}
.cabecera .hoja {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 68px;
}

.marca {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}
.marca svg {
  width: 36px;
  height: 36px;
  flex: none;
}
.marca-texto {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  min-width: 0;
}
.marca-texto b {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.marca-texto span {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tenue);
  white-space: nowrap;
}

.menu {
  display: none;
  align-items: center;
  gap: 28px;
  font-size: 15px;
  font-weight: 500;
}
.menu a {
  text-decoration: none;
  color: var(--tenue);
  transition: color 0.15s;
}
.menu a:hover {
  color: var(--tinta);
}
@media (min-width: 900px) {
  .menu {
    display: flex;
  }
}

.boton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}
.boton svg {
  width: 16px;
  height: 16px;
}
.boton-lleno {
  background: var(--marino);
  color: var(--marino-tinta);
  border: 1px solid var(--marino);
}
.boton-lleno:hover {
  background: color-mix(in srgb, var(--marino) 85%, var(--acento));
}
.boton-linea {
  border: 1px solid var(--linea);
  color: var(--tinta);
  background: var(--papel);
}
.boton-linea:hover {
  border-color: var(--tenue);
}
.cabecera .boton {
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
}
.cabecera .boton span {
  display: none;
}
@media (min-width: 520px) {
  .cabecera .boton span {
    display: inline;
  }
}

/* ── Portada ──────────────────────────────────────────── */

.portada {
  position: relative;
  overflow: hidden;
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--linea-suave);
  background-image:
    linear-gradient(var(--linea-suave) 1px, transparent 1px),
    linear-gradient(90deg, var(--linea-suave) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
}
.portada::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--fondo) 30%, color-mix(in srgb, var(--fondo) 55%, transparent));
  pointer-events: none;
}
.portada .hoja {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 48px;
  align-items: center;
}
@media (min-width: 960px) {
  .portada {
    padding: 88px 0 96px;
  }
  .portada .hoja {
    grid-template-columns: 1fr 1.08fr;
    gap: 56px;
  }
}

.portada h1 {
  margin-top: 18px;
  font-size: clamp(36px, 6.4vw, 60px);
  font-weight: 800;
  letter-spacing: -0.03em;
}
.portada h1 em {
  font-style: normal;
  color: var(--acento);
}
.portada .bajada {
  margin-top: 22px;
  max-width: 34em;
  font-size: clamp(17px, 2.2vw, 19px);
  color: var(--tenue);
}
.acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.lugar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.lugar::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--acento);
}

.lamina {
  position: relative;
  margin: 0;
  background: var(--papel);
  border: 1px solid var(--linea);
  border-radius: 10px;
  box-shadow: var(--sombra);
  padding: 20px 20px 0;
}
.lamina-cab {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--linea-suave);
}
.plano {
  width: 100%;
  height: auto;
  color: var(--plano);
  margin: 12px 0 4px;
}
.plano .eje {
  stroke: var(--plano-tenue);
  stroke-dasharray: 6 4 1.5 4;
}
.plano text {
  font-family: var(--mono);
  font-size: 11px;
  fill: currentColor;
}
.plano .pieza {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: trazar 1.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
@keyframes trazar {
  to {
    stroke-dashoffset: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .plano .pieza {
    animation: none;
    stroke-dashoffset: 0;
  }
}

.cajetin {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0 -20px;
  border-top: 1px solid var(--linea);
}
.cajetin > div {
  padding: 10px 16px 12px;
  border-right: 1px solid var(--linea-suave);
  border-bottom: 1px solid var(--linea-suave);
  min-width: 0;
}
.cajetin > div:nth-child(2n) {
  border-right: 0;
}
.cajetin > div:nth-last-child(-n + 2) {
  border-bottom: 0;
}
.cajetin .etq {
  display: block;
  font-size: 10.5px;
}
.cajetin b {
  display: block;
  margin-top: 2px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
@media (min-width: 560px) {
  .cajetin {
    grid-template-columns: 1fr 1.3fr 1fr 1.1fr;
  }
  .cajetin > div {
    border-bottom: 0;
  }
  .cajetin > div:nth-child(2n) {
    border-right: 1px solid var(--linea-suave);
  }
  .cajetin > div:last-child {
    border-right: 0;
  }
}

/* ── Secciones ────────────────────────────────────────── */

.seccion {
  padding: 72px 0;
  border-bottom: 1px solid var(--linea-suave);
}
@media (min-width: 960px) {
  .seccion {
    padding: 104px 0;
  }
}
.seccion-cab {
  display: grid;
  gap: 16px;
  margin-bottom: 44px;
}
@media (min-width: 960px) {
  .seccion-cab {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: 56px;
    margin-bottom: 56px;
  }
}
.seccion-cab h2 {
  margin-top: 10px;
  font-size: clamp(28px, 4.2vw, 40px);
}
.seccion-cab p {
  color: var(--tenue);
  max-width: 36em;
}
.num {
  color: var(--acento);
}

/* Servicios */
.servicios {
  display: grid;
  gap: 1px;
  background: var(--linea);
  border: 1px solid var(--linea);
  border-radius: 10px;
  overflow: hidden;
}
@media (min-width: 680px) {
  .servicios {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1040px) {
  .servicios {
    grid-template-columns: repeat(3, 1fr);
  }
}
.servicio {
  background: var(--papel);
  padding: 28px 24px 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.servicio-cab {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.servicio-cab svg {
  width: 40px;
  height: 40px;
  color: var(--plano);
}
.servicio h3 {
  font-size: 21px;
}
.servicio p {
  color: var(--tenue);
  font-size: 15.5px;
}
.servicio ul {
  list-style: none;
  margin: 4px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--linea);
  display: grid;
  gap: 7px;
  font-size: 14.5px;
}
.servicio li {
  display: flex;
  gap: 10px;
}
.servicio li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 0.62em;
  background: var(--acento);
  transform: rotate(45deg);
}

/* Proceso */
.proceso {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: paso;
}
@media (min-width: 860px) {
  .proceso {
    grid-template-columns: repeat(4, 1fr);
  }
}
.paso {
  position: relative;
  padding: 0 0 32px 44px;
  border-left: 1px solid var(--linea);
  margin-left: 12px;
}
.paso:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}
.paso::before {
  counter-increment: paso;
  content: counter(paso, decimal-leading-zero);
  position: absolute;
  left: -13px;
  top: -2px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  background: var(--fondo);
  border: 1px solid var(--acento);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  color: var(--acento);
}
.paso h3 {
  font-size: 19px;
}
.paso p {
  margin-top: 8px;
  color: var(--tenue);
  font-size: 15.5px;
}
@media (min-width: 860px) {
  .paso {
    padding: 44px 28px 0 0;
    margin-left: 0;
    border-left: 0;
    border-top: 1px solid var(--linea);
  }
  .paso:last-child {
    border-top-color: var(--linea);
  }
  .paso::before {
    left: 0;
    top: -13px;
  }
}

/* Sectores */
.sectores {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (min-width: 760px) {
  .sectores {
    grid-template-columns: repeat(3, 1fr);
  }
}
.sector {
  padding: 18px 18px 20px;
  border: 1px solid var(--linea);
  border-radius: 10px;
  background: var(--papel);
}
.sector b {
  display: block;
  font-size: 16.5px;
}
.sector span {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  color: var(--tenue);
}

/* Tecnología */
.tecnologia {
  background: var(--marino);
  color: var(--marino-tinta);
  border-bottom: 0;
}
.tecnologia .etq,
.tecnologia .seccion-cab p {
  color: color-mix(in srgb, var(--marino-tinta) 70%, transparent);
}
.tecnologia .num {
  color: #e0a24c;
}
.tec-grid {
  display: grid;
  gap: 16px;
}
@media (min-width: 860px) {
  .tec-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}
.tec {
  padding: 28px 26px;
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: 10px;
  background: rgb(255 255 255 / 4%);
}
.tec h3 {
  font-size: 22px;
}
.tec p {
  margin-top: 10px;
  color: color-mix(in srgb, var(--marino-tinta) 78%, transparent);
  font-size: 15.5px;
}
.tec .boton {
  margin-top: 22px;
  background: transparent;
  color: var(--marino-tinta);
  border: 1px solid rgb(255 255 255 / 30%);
}
.tec .boton:hover {
  border-color: rgb(255 255 255 / 60%);
}
.tec-producto {
  display: flex;
  align-items: center;
  gap: 10px;
}
.tec-producto .sello {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e0a24c;
  color: #13202e;
  font-weight: 500;
}

/* Empresa */
.empresa-grid {
  display: grid;
  gap: 40px;
}
@media (min-width: 960px) {
  .empresa-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
  }
}
.empresa-texto h2 {
  margin-top: 10px;
  font-size: clamp(28px, 4.2vw, 40px);
}
.empresa-texto p {
  margin-top: 18px;
  color: var(--tenue);
}
.empresa-texto p strong {
  color: var(--tinta);
  font-weight: 600;
}
.valores {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}
.valor {
  display: flex;
  gap: 14px;
}
.valor svg {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  color: var(--acento);
}
.valor b {
  display: block;
  font-size: 16px;
}
.valor span {
  display: block;
  font-size: 15px;
  color: var(--tenue);
}

.ficha {
  border: 1px solid var(--linea);
  border-radius: 10px;
  background: var(--papel);
  overflow: hidden;
  align-self: start;
}
.ficha-cab {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--linea);
  background: var(--fondo);
}
.ficha dl {
  margin: 0;
}
.ficha dl > div {
  display: grid;
  gap: 2px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--linea-suave);
}
.ficha dl > div:last-child {
  border-bottom: 0;
}
@media (min-width: 560px) {
  .ficha dl > div {
    grid-template-columns: 170px 1fr;
    gap: 16px;
  }
}
.ficha dt {
  font-size: 13.5px;
  color: var(--tenue);
}
.ficha dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
}
.ficha-pie {
  padding: 12px 20px 14px;
  font-size: 13.5px;
  color: var(--tenue);
  border-top: 1px solid var(--linea);
}

/* Contacto */
.contacto {
  border-bottom: 0;
}
.contacto-caja {
  display: grid;
  gap: 32px;
  padding: 36px 24px;
  border: 1px solid var(--linea);
  border-radius: 14px;
  background: var(--papel);
  box-shadow: var(--sombra);
}
@media (min-width: 860px) {
  .contacto-caja {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    padding: 56px;
    gap: 56px;
  }
}
.contacto-caja h2 {
  margin-top: 10px;
  font-size: clamp(28px, 4.2vw, 40px);
}
.contacto-caja p {
  margin-top: 14px;
  color: var(--tenue);
}
.medios {
  display: grid;
  gap: 12px;
}
.medio {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--linea);
  border-radius: 10px;
  text-decoration: none;
  background: var(--fondo);
  min-width: 0;
}
a.medio:hover {
  border-color: var(--tenue);
}
.medio svg {
  flex: none;
  width: 22px;
  height: 22px;
  color: var(--plano);
}
.medio div {
  min-width: 0;
}
.medio b {
  display: block;
  font-size: 15.5px;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.medio span {
  display: block;
  font-size: 13.5px;
  color: var(--tenue);
}

/* ── Pie ──────────────────────────────────────────────── */

.pie {
  padding: 40px 0 48px;
  border-top: 1px solid var(--linea);
  font-size: 14px;
  color: var(--tenue);
}
.pie .hoja {
  display: grid;
  gap: 24px;
}
@media (min-width: 860px) {
  .pie .hoja {
    grid-template-columns: 1.4fr 1fr 1fr;
    align-items: start;
  }
}
.pie b {
  color: var(--tinta);
  font-weight: 600;
}
.pie p + p {
  margin-top: 4px;
}
.pie nav {
  display: grid;
  gap: 6px;
}
.pie nav a {
  text-decoration: none;
}
.pie nav a:hover {
  color: var(--tinta);
}

/* ── 404 ──────────────────────────────────────────────── */

.perdido {
  min-height: calc(100vh - 69px - 140px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 72px 0;
}
.perdido h1 {
  margin-top: 12px;
  font-size: clamp(32px, 5vw, 44px);
}
.perdido p {
  margin: 14px auto 28px;
  color: var(--tenue);
  max-width: 28em;
}