:root {
  --color-primario: #17242b;
  --color-acento: #c26242;
  --color-acento-oscuro: #98452e;
  --color-fondo: #f4f7f7;
  --color-blanco: #ffffff;
  --color-gris-claro: #a5b0b5;
  --color-texto-secundario: #647177;
  --color-borde: rgba(23, 36, 43, 0.12);

  --radio-pildora: 999px;
  --radio-tarjeta: 14px;
  --sombra-suave: 0 14px 34px rgba(23, 36, 43, 0.09);
  --sombra-elevada: 0 22px 54px rgba(23, 36, 43, 0.14);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Manrope", "Segoe UI", sans-serif;
  background-color: var(--color-fondo);
  color: var(--color-primario);
  line-height: 1.65;
  overflow-x: hidden;
}

::selection {
  background: var(--color-acento);
  color: var(--color-blanco);
}

a {
  text-decoration: none;
  color: inherit;
}

button,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(194, 98, 66, 0.42);
  outline-offset: 3px;
}

img,
video {
  max-width: 100%;
  display: block;
}

/* imagen principal de la página */
.portada {
  position: relative;
  height: min(720px, 76vh);
  min-height: 520px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--color-blanco);
  padding: 80px 20px;
}


.capa-portada {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(23, 36, 43, 0.2), rgba(23, 36, 43, 0.78));
}

.presentacion {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(760px, 100%);
  padding: 34px 28px;
}

.imagen-fondo {
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
}

.presentacion h1,
.portada h1 {
  color: var(--color-blanco);
  max-width: 760px;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.04;
  margin-bottom: 16px;
  letter-spacing: -0.04em;
}

.presentacion p,
.portada p {
  max-width: 620px;
  font-size: 1.08rem;
  font-weight: 400;
  color: var(--color-blanco);
}

.logo-portada {
  width: min(360px, 72vw);
  max-width: 100%;
  margin-bottom: 20px;
  filter: drop-shadow(0 5px 16px rgba(0, 0, 0, 0.3));
}

/* imagen como enlace a la galería */
.seccion-desarrollos {
  max-width: 1000px;
  margin: 0 auto;
  padding: 64px 5% 32px;
}

.seccion-desarrollos h2 {
  text-align: center;
  margin: 0 auto 24px;
  max-width: 680px;
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-texto-secundario);
}

.tarjeta-destacada {
  display: grid;
  gap: 24px;
  margin: 20px auto;
  padding: 14px 14px 24px;
  background: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-tarjeta);
  box-shadow: var(--sombra-suave);
  max-width: 1000px;
}

.tarjeta-portada {
  max-width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px 14px 24px;
  background: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-tarjeta);
  box-shadow: var(--sombra-suave);
}

.tarjeta-portada a,
.tarjeta-destacada a {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radio-tarjeta);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tarjeta-portada a::before,
.tarjeta-destacada .imagen-enlace::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: rgba(16, 25, 29, 0.62);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tarjeta-portada a::after,
.tarjeta-destacada .imagen-enlace::after {
  content: "Abrir página  >";
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radio-pildora);
  background: rgba(16, 25, 29, 0.55);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, -42%);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.tarjeta-portada a:hover::before,
.tarjeta-destacada .imagen-enlace:hover::before {
  opacity: 1;
}

.tarjeta-portada a:hover::after,
.tarjeta-destacada .imagen-enlace:hover::after {
  opacity: 1;
  transform: translate(-50%, -50%);
}

.tarjeta-portada a:hover,
.tarjeta-destacada a:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-suave);
}

.tarjeta-portada img,
.tarjeta-destacada img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radio-tarjeta);
  transition: transform 0.3s ease;
}

.tarjeta-portada a:hover img,
.tarjeta-destacada a:hover img {
  transform: scale(1.02);
}

.seccion {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 0;
}

.seccion h2 {
  margin: 26px 10px 12px;
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.3;
}

.seccion p {
  text-align: center;
  padding: 0 12px;
  font-size: 0.98rem;
  color: var(--color-texto-secundario);
}

.secciones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  justify-content: center;
  margin: 16px auto 72px;
  max-width: 1200px;
  padding: 0 5%;
}

.divisor {
  border: none;
  height: 1px;
  background-color: var(--color-borde);
  margin: 24px auto;
  width: min(1120px, 90%);
}

.elemento-animado {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.elemento-visible {
  opacity: 1;
  transform: translateY(0);
}

.seccion-desarrollos {
  width: min(1200px, 90%);
  margin: 0 auto;
  padding: 64px 0 32px;
}

.tarjeta-destacada {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: 32px;
  margin: 20px auto;
  padding: 14px;
  background: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-tarjeta);
  box-shadow: var(--sombra-suave);
}

.imagen-enlace {
    display: block;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radio-tarjeta);
}

.imagen-enlace img {
    width: 100%;
    height: auto;
    display: block;

    transition: transform 0.3s ease;
}

.imagen-enlace:hover img {
    transform: scale(1.02);
}

.contenido-desarrollos {
    text-align: center;
  padding: 24px 28px;
}

.contenido-desarrollos h2 {
    margin: 0 0 12px;
  color: var(--color-primario);
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.3;
}

.contenido-desarrollos p {
    max-width: 750px;
    margin: 0 auto 25px;
  color: var(--color-texto-secundario);
  font-size: 0.98rem;
    line-height: 1.6;
}

.boton-portafolio {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    padding: 12px 20px;
    background: var(--color-acento);
    color: var(--color-blanco);
    border-radius: var(--radio-pildora);
    font-size: 0.9rem;
    font-weight: 800;
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.boton-portafolio span {
    font-size: 22px;
}

.boton-portafolio:hover {
  background: var(--color-acento-oscuro);
    transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(152, 69, 46, 0.2);
}