/* ==========================================================================
   CC Arquitectos Asociados — Hoja de estilos principal
   Paleta derivada del logo de la marca
   ========================================================================== */

:root {
  /* Colores de marca (extraídos del logo) */
  --lima-claro: #C4D82E;
  --lima: #A8C71E;
  --lima-profundo: #8BA517;

  /* Neutros arquitectónicos */
  --carbon: #232323;
  --carbon-suave: #2E2E2E;
  --gris-oscuro: #4A4A4A;
  --gris: #6E6E6E;
  --gris-claro: #9A9A9A;
  --linea: #E4E6DE;
  --hueso: #F7F8F3;
  --blanco: #FFFFFF;

  /* Tipografía */
  --display: 'Sora', sans-serif;
  --cuerpo: 'Inter', sans-serif;

  /* Medidas */
  --max: 1240px;
  --radio: 4px;
  --transicion: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sombra: 0 10px 40px rgba(35, 35, 35, 0.08);
  --sombra-fuerte: 0 20px 60px rgba(35, 35, 35, 0.15);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 130px; }

body {
  font-family: var(--cuerpo);
  color: var(--gris-oscuro);
  line-height: 1.65;
  background: var(--blanco);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--carbon);
  line-height: 1.15;
  font-weight: 700;
}

.contenedor { width: 90%; max-width: var(--max); margin: 0 auto; }

/* Utilidades de sección -------------------------------------------------- */
.seccion { padding: 100px 0; }
.seccion--hueso { background: var(--hueso); }

.eyebrow {
  display: inline-block;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lima-profundo);
  margin-bottom: 16px;
  position: relative;
  padding-left: 38px;
}
.eyebrow::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 28px; height: 2px;
  background: var(--lima);
  transform: translateY(-50%);
}

.titulo-seccion {
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.subtitulo-seccion {
  font-size: 1.05rem;
  color: var(--gris);
  max-width: 620px;
}

/* Botones ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 15px 32px;
  border-radius: var(--radio);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transicion);
  letter-spacing: 0.02em;
}
.btn--primario {
  background: var(--lima);
  color: var(--carbon);
}
.btn--primario:hover {
  background: var(--lima-profundo);
  color: var(--blanco);
  transform: translateY(-2px);
}
.btn--oscuro {
  background: var(--carbon);
  color: var(--blanco);
}
.btn--oscuro:hover { background: var(--carbon-suave); transform: translateY(-2px); }
.btn--linea {
  background: transparent;
  border-color: var(--blanco);
  color: var(--blanco);
}
.btn--linea:hover { background: var(--blanco); color: var(--carbon); }
.btn .flecha { transition: transform var(--transicion); }
.btn:hover .flecha { transform: translateX(4px); }

/* ==========================================================================
   BARRA SUPERIOR
   ========================================================================== */
.topbar {
  background: var(--carbon);
  color: var(--gris-claro);
  font-size: 0.85rem;
  padding: 9px 0;
}
.topbar .contenedor {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.topbar__info { display: flex; gap: 26px; flex-wrap: wrap; }
.topbar__info a {
  display: inline-flex; align-items: center; gap: 8px;
  transition: color var(--transicion);
}
.topbar__info a:hover { color: var(--lima-claro); }
.topbar__info svg { width: 15px; height: 15px; fill: var(--lima); flex-shrink: 0; }
.topbar__redes { display: flex; gap: 14px; }
.topbar__redes a { transition: color var(--transicion); }
.topbar__redes a:hover { color: var(--lima-claro); }
.topbar__redes svg { width: 16px; height: 16px; fill: currentColor; }

/* ==========================================================================
   HEADER / NAVEGACIÓN
   ========================================================================== */
.header {
  background: var(--blanco);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(35,35,35,0.06);
}
.header .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
}
.logo img { height: 50px; width: auto; }

.nav__lista { display: flex; align-items: center; gap: 4px; }
.nav__link {
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.93rem;
  color: var(--gris-oscuro);
  padding: 12px 16px;
  border-radius: var(--radio);
  transition: var(--transicion);
  position: relative;
}
.nav__link:hover, .nav__link.activo { color: var(--lima-profundo); }
.nav__link.activo { font-weight: 600; }

/* Submenú desplegable */
.nav__item { position: relative; }
.nav__item--drop > .nav__link::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 7px;
  transition: var(--transicion);
}
.submenu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--blanco);
  min-width: 280px;
  box-shadow: var(--sombra);
  border-radius: var(--radio);
  border-top: 3px solid var(--lima);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transicion);
}
.nav__item--drop:hover .submenu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.submenu a {
  display: block;
  padding: 12px 16px;
  font-size: 0.92rem;
  color: var(--gris-oscuro);
  border-radius: var(--radio);
  transition: var(--transicion);
}
.submenu a:hover { background: var(--hueso); color: var(--lima-profundo); padding-left: 22px; }

.nav__cta { margin-left: 14px; }

/* Botón hamburguesa */
.hamburguesa {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburguesa span {
  width: 26px; height: 2px;
  background: var(--carbon);
  transition: var(--transicion);
}
.hamburguesa.activo span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburguesa.activo span:nth-child(2) { opacity: 0; }
.hamburguesa.activo span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: var(--blanco);
  overflow: hidden;
}
.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero__slide.activo { opacity: 1; }
.hero__slide::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(35,35,35,0.82) 0%, rgba(35,35,35,0.45) 55%, rgba(35,35,35,0.25) 100%);
}
.hero__contenido { position: relative; z-index: 2; max-width: 720px; }
.hero__titulo {
  color: var(--blanco);
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero__titulo span { color: var(--lima-claro); }
.hero__texto {
  font-size: 1.1rem;
  max-width: 540px;
  margin-bottom: 36px;
  color: rgba(255,255,255,0.9);
}
.hero__puntos {
  position: absolute;
  bottom: 34px; left: 0; right: 0;
  z-index: 3;
  display: flex;
  gap: 10px;
  justify-content: center;
}
.hero__punto {
  width: 36px; height: 4px;
  background: rgba(255,255,255,0.4);
  border: none; cursor: pointer;
  transition: var(--transicion);
}
.hero__punto.activo { background: var(--lima); }

/* ==========================================================================
   INTRO / EMPRESA
   ========================================================================== */
.intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.intro__titulo {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 24px;
}
.intro__titulo span { color: var(--lima-profundo); }
.intro__destacado {
  font-weight: 600;
  color: var(--carbon);
  font-size: 1.1rem;
  margin-bottom: 16px;
}
.intro__texto { color: var(--gris); margin-bottom: 16px; }
.intro__imagen {
  position: relative;
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra-fuerte);
}
.intro__imagen img { width: 100%; height: 520px; object-fit: cover; }

/* ==========================================================================
   CTA DESTACADO (imagen enmarcada)
   ========================================================================== */
.destacado__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.destacado__marco {
  position: relative;
  padding: 26px 0 0 26px;
}
.destacado__marco::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 78%; height: 88%;
  border: 8px solid var(--lima);
  border-radius: var(--radio);
  z-index: 0;
}
.destacado__marco img {
  position: relative;
  z-index: 1;
  width: 100%; height: 480px;
  object-fit: cover;
  border-radius: var(--radio);
}
.destacado__titulo { font-size: clamp(1.7rem, 3.2vw, 2.5rem); margin-bottom: 22px; }
.destacado__texto { color: var(--gris); margin-bottom: 32px; font-size: 1.05rem; }

/* ==========================================================================
   TARJETAS DE SERVICIOS
   ========================================================================== */
.servicios__cabecera { text-align: center; margin-bottom: 56px; }
.servicios__cabecera .eyebrow { padding-left: 0; }
.servicios__cabecera .eyebrow::before { display: none; }
.servicios__cabecera .subtitulo-seccion { margin: 0 auto; }

.servicios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.tarjeta-servicio {
  position: relative;
  height: 460px;
  border-radius: var(--radio);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--sombra);
}
.tarjeta-servicio__img {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transition: transform 0.6s ease;
}
.tarjeta-servicio:hover .tarjeta-servicio__img { transform: scale(1.07); }
.tarjeta-servicio::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(35,35,35,0.92) 0%, rgba(35,35,35,0.35) 55%, rgba(35,35,35,0.1) 100%);
  z-index: 1;
}
.tarjeta-servicio__contenido {
  position: relative;
  z-index: 2;
  padding: 32px;
  color: var(--blanco);
  width: 100%;
}
.tarjeta-servicio__barra {
  width: 48px; height: 4px;
  background: var(--lima);
  margin-bottom: 18px;
  transition: width var(--transicion);
}
.tarjeta-servicio:hover .tarjeta-servicio__barra { width: 80px; }
.tarjeta-servicio__titulo {
  color: var(--blanco);
  font-size: 1.4rem;
  margin-bottom: 12px;
}
.tarjeta-servicio__texto {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  margin-bottom: 18px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: var(--transicion);
}
.tarjeta-servicio:hover .tarjeta-servicio__texto { max-height: 120px; opacity: 1; }
.tarjeta-servicio__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--lima-claro);
}
.tarjeta-servicio__link svg { width: 16px; height: 16px; fill: currentColor; transition: transform var(--transicion); }
.tarjeta-servicio:hover .tarjeta-servicio__link svg { transform: translateX(5px); }

/* ==========================================================================
   FRANJA DE CIFRAS
   ========================================================================== */
.cifras {
  background: var(--carbon);
  color: var(--blanco);
  padding: 70px 0;
}
.cifras__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.cifra__num {
  font-family: var(--display);
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--lima-claro);
  line-height: 1;
}
.cifra__label {
  margin-top: 10px;
  font-size: 0.92rem;
  color: var(--gris-claro);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   CTA FINAL
   ========================================================================== */
.cta-final {
  position: relative;
  padding: 90px 0;
  text-align: center;
  color: var(--blanco);
  background: linear-gradient(rgba(35,35,35,0.9), rgba(35,35,35,0.9)),
              url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1600&q=80') center/cover fixed;
}
.cta-final__titulo { color: var(--blanco); font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 18px; max-width: 760px; margin-inline: auto; }
.cta-final__texto { color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 34px; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer { background: var(--carbon); color: var(--gris-claro); }
.footer__principal {
  padding: 70px 0 50px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer__logo img { height: 56px; margin-bottom: 22px; }
.footer__desc { font-size: 0.92rem; line-height: 1.7; max-width: 320px; }
.footer h4 {
  color: var(--blanco);
  font-size: 1rem;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 12px;
}
.footer h4::after {
  content: ""; position: absolute; bottom: 0; left: 0;
  width: 30px; height: 2px; background: var(--lima);
}
.footer__lista li { margin-bottom: 12px; }
.footer__lista a, .footer__contacto li {
  font-size: 0.92rem;
  transition: color var(--transicion);
  display: flex; gap: 10px; align-items: flex-start;
}
.footer__lista a:hover { color: var(--lima-claro); padding-left: 4px; }
.footer__contacto svg { width: 16px; height: 16px; fill: var(--lima); flex-shrink: 0; margin-top: 4px; }
.footer__redes { display: flex; gap: 12px; margin-top: 20px; }
.footer__redes a {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radio);
  transition: var(--transicion);
}
.footer__redes a:hover { background: var(--lima); }
.footer__redes a:hover svg { fill: var(--carbon); }
.footer__redes svg { width: 17px; height: 17px; fill: var(--blanco); }
.footer__base {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 0;
  text-align: center;
  font-size: 0.85rem;
}

/* ==========================================================================
   ENCABEZADO DE PÁGINAS INTERNAS
   ========================================================================== */
.page-hero {
  position: relative;
  padding: 90px 0;
  color: var(--blanco);
  text-align: center;
  background: linear-gradient(rgba(35,35,35,0.78), rgba(35,35,35,0.82)), var(--bg-page, #555) center/cover;
}
.page-hero__titulo { color: var(--blanco); font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 14px; }
.page-hero__ruta { font-size: 0.92rem; color: rgba(255,255,255,0.8); }
.page-hero__ruta a:hover { color: var(--lima-claro); }

/* Bloques de contenido para páginas internas */
.bloque {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.bloque--inv .bloque__texto { order: 2; }
.bloque img { width: 100%; height: 440px; object-fit: cover; border-radius: var(--radio); box-shadow: var(--sombra); }
.bloque__texto h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: 20px; }
.bloque__texto p { color: var(--gris); margin-bottom: 16px; }
.lista-check li {
  display: flex; gap: 12px; align-items: flex-start;
  margin-bottom: 14px; color: var(--gris-oscuro);
}
.lista-check svg { width: 22px; height: 22px; fill: var(--lima); flex-shrink: 0; }

/* Grid de proyectos */
.proyectos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.proyecto {
  position: relative;
  height: 300px;
  border-radius: var(--radio);
  overflow: hidden;
  cursor: pointer;
}
.proyecto img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.proyecto:hover img { transform: scale(1.08); }
.proyecto__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(35,35,35,0.9), transparent 60%);
  display: flex; align-items: flex-end;
  padding: 24px;
  opacity: 0; transition: var(--transicion);
}
.proyecto:hover .proyecto__overlay { opacity: 1; }
.proyecto__overlay h3 { color: var(--blanco); font-size: 1.2rem; }
.proyecto__overlay span { color: var(--lima-claro); font-size: 0.85rem; }

/* Formulario de contacto */
.contacto__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}
.contacto__info h3 { font-size: 1.5rem; margin-bottom: 24px; }
.contacto__item {
  display: flex; gap: 16px; align-items: flex-start;
  margin-bottom: 26px;
}
.contacto__item-icono {
  width: 46px; height: 46px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--hueso);
  border-radius: var(--radio);
}
.contacto__item-icono svg { width: 20px; height: 20px; fill: var(--lima-profundo); }
.contacto__item h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contacto__item p { color: var(--gris); font-size: 0.95rem; }

.form { background: var(--hueso); padding: 40px; border-radius: var(--radio); }
.form__fila { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__campo { margin-bottom: 18px; }
.form__campo label {
  display: block;
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 7px;
  color: var(--carbon);
}
.form__campo input, .form__campo textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--linea);
  border-radius: var(--radio);
  font-family: var(--cuerpo);
  font-size: 0.95rem;
  background: var(--blanco);
  transition: var(--transicion);
}
.form__campo input:focus, .form__campo textarea:focus {
  outline: none;
  border-color: var(--lima);
  box-shadow: 0 0 0 3px rgba(168,199,30,0.15);
}
.form__campo textarea { resize: vertical; min-height: 130px; }
.form__estado { margin-top: 14px; font-size: 0.92rem; font-weight: 500; }
.form__estado.ok { color: var(--lima-profundo); }
.form__estado.error { color: #c0392b; }

.mapa { margin-top: 40px; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); }
.mapa iframe { width: 100%; height: 320px; border: 0; display: block; }

/* ==========================================================================
   ANIMACIONES DE APARICIÓN
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 992px) {
  .intro__grid, .destacado__grid, .bloque, .contacto__grid { grid-template-columns: 1fr; gap: 40px; }
  .bloque--inv .bloque__texto { order: 0; }
  .servicios__grid, .proyectos__grid { grid-template-columns: repeat(2, 1fr); }
  .cifras__grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .footer__principal { grid-template-columns: 1fr 1fr; }
  .destacado__marco::before { display: none; }
  .destacado__marco { padding: 0; }
  .intro__imagen img { height: 380px; }
}

@media (max-width: 768px) {
  .seccion { padding: 64px 0; }
  .topbar__info { gap: 16px; font-size: 0.8rem; }
  .topbar .contenedor { flex-direction: column; gap: 8px; }

  .hamburguesa { display: flex; }
  .nav {
    position: fixed;
    top: 0; right: -100%;
    width: 80%; max-width: 340px;
    height: 100vh;
    background: var(--blanco);
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
    padding: 90px 24px 24px;
    transition: right var(--transicion);
    overflow-y: auto;
  }
  .nav.activo { right: 0; }
  .nav__lista { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav__link { padding: 14px 12px; border-bottom: 1px solid var(--linea); border-radius: 0; }
  .submenu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; min-width: 0; border-top: none;
    max-height: 0; overflow: hidden; padding: 0;
    transition: max-height var(--transicion);
  }
  .nav__item--drop.abierto .submenu { max-height: 400px; padding: 4px 0 4px 16px; }
  .nav__item--drop > .nav__link { display: flex; justify-content: space-between; align-items: center; }
  .nav__cta { margin: 14px 0 0; }
  .nav__cta .btn { width: 100%; justify-content: center; }
}

@media (max-width: 600px) {
  .servicios__grid, .proyectos__grid, .cifras__grid, .footer__principal { grid-template-columns: 1fr; }
  .form__fila { grid-template-columns: 1fr; }
  .hero { min-height: 540px; }
}