/* ============================================================
   Zvezda Automation — estilos
   Paleta:
     #800000  rojo vino
     #0C120C  negro
     #EEF0F2  blanco
     #757780  gris
     #456990  azul
   ============================================================ */

:root {
  --color-vino:   #800000;
  --color-negro:  #0C120C;
  --color-blanco: #EEF0F2;
  --color-gris:   #757780;
  --color-azul:   #456990;

  --header-height: 96px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);   /* las secciones no quedan bajo el header fijo */
}

body {
  font-family: 'Jost', sans-serif;
  background-color: var(--color-blanco);
  color: var(--color-negro);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===================== HEADER ===================== */
.header {
  position: sticky;                      /* se mantiene arriba al hacer scroll */
  top: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-height);          /* altura FIJA */
  background-color: var(--color-negro);
  border-bottom: 3px solid var(--color-vino);
  overflow: hidden;
}

/* El logo mantiene proporcion y se ancla a la izquierda.
   Ocupa la altura del header sin estirarse con el ancho de pantalla. */
.header__banner {
  display: block;
  height: 100%;
  width: auto;
}

/* Botones de navegacion alineados a la derecha, sobre el header */
.header__nav {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-right: clamp(1rem, 4vw, 3.5rem);
}

.nav__btn {
  display: inline-block;
  padding: 0.55rem 1.4rem;
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--color-blanco);
  border: 1px solid rgba(238, 240, 242, 0.35);
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav__btn:hover,
.nav__btn:focus-visible {
  background-color: var(--color-vino);
  border-color: var(--color-vino);
  color: var(--color-blanco);
  outline: none;
}

/* ===================== BODY / HERO ===================== */
.body {
  flex: 1 0 auto;
  background-color: var(--color-blanco);
}

.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc((100vh - var(--header-height)) * 0.65);   /* 35% mas chico que el original */
  padding: 3rem 1.5rem;
  text-align: center;
}

/* Estrella de fondo, semitransparente y centrada */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('../Zvezda/zvezda-estrella.svg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: min(70vh, 60vw);
  opacity: 0.10;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__title {
  display: inline-block;
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 500;                 /* mismo peso que el logo "ZVEZDA" */
  letter-spacing: 0.18em;           /* tracking amplio como el header */
  text-transform: uppercase;
  color: var(--color-negro);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
  border-bottom: 3px solid var(--color-vino);   /* raya roja */
}

.hero__text {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-gris);
}

/* Carrusel de certificaciones */
.cert-carousel {
  margin-top: 2.5rem;
  width: 100%;
  overflow: hidden;
  /* difumina los bordes izquierdo/derecho para un loop mas limpio */
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}

.cert-carousel__track {
  display: flex;
  width: max-content;
  animation: cert-scroll 28s linear infinite;   /* giro tranquilo pero visible */
}

.cert-carousel:hover .cert-carousel__track {
  animation-play-state: paused;                 /* se detiene al pasar el mouse */
}

/* Todos los certs con el MISMO tamano de caja */
.cert-carousel__item {
  flex: 0 0 auto;
  width: 150px;
  height: 90px;
  margin: 0 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-carousel__item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

@keyframes cert-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }   /* -50% = ancho de un set */
}

@media (prefers-reduced-motion: reduce) {
  .cert-carousel__track { animation: none; }
}

/* ===================== SECCION INDUSTRIAS ===================== */
.industrias {
  background-color: var(--color-blanco);   /* mismo fondo que el hero */
  padding: clamp(3rem, 8vw, 6rem) 1.5rem;
  padding-bottom: clamp(1.5rem, 4vw, 3rem);   /* espacio hacia la seccion 3 (rectangulo verde) */
  text-align: center;
}

.industrias__title {
  display: inline-block;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--color-negro);
  max-width: 900px;
  padding-bottom: 0.75rem;
  margin: 0 auto clamp(2.5rem, 6vw, 4rem);
  border-bottom: 3px solid var(--color-vino);   /* raya roja */
}

.industrias__grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);   /* fila horizontal */
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.area__img {
  width: 100%;
  max-width: 140px;
  height: 120px;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.area:hover .area__img {
  transform: translateY(-4px);
}

.area__label {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-gris);
}

/* ===================== SECCION NOSOTROS ===================== */
.nosotros {
  background-color: var(--color-blanco);   /* fondo blanco de la paleta */
  padding: clamp(3rem, 8vw, 6rem) 1.5rem;
  padding-top: clamp(1.5rem, 4vw, 3rem);   /* espacio desde la seccion 2 (rectangulo verde) */
}

.nosotros__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.nosotros__title {
  display: inline-block;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--color-negro);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
  border-bottom: 3px solid var(--color-vino);   /* linea roja como el header */
}

.nosotros__text {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-gris);
}

/* --- Diagrama de capacidades --- */
.cap-diagram {
  max-width: 960px;
  margin: clamp(2.5rem, 6vw, 4rem) auto 0;
}

/* Hub central con la estrella de la marca */
.cap-hub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.cap-hub__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background-color: var(--color-negro);
  border: 3px solid var(--color-vino);
}

.cap-hub__badge img {
  width: 46px;
  height: 46px;
  /* la estrella es vino; la volvemos blanca para que resalte sobre el negro */
  filter: brightness(0) invert(1);
}

.cap-hub__label {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-negro);
}

/* Flujo serpentina (culebra) horizontal */
.cap-flow {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 3.25rem;
}

.cap-item {
  position: relative;
}

/* Orden serpentina: fila 1 izq->der (01 02 03),
   fila 2 der->izq (04 05 06) para que 03 baje directo a 04 */
.cap-item:nth-child(1) { grid-column: 1; grid-row: 1; }
.cap-item:nth-child(2) { grid-column: 2; grid-row: 1; }
.cap-item:nth-child(3) { grid-column: 3; grid-row: 1; }
.cap-item:nth-child(4) { grid-column: 3; grid-row: 2; }
.cap-item:nth-child(5) { grid-column: 2; grid-row: 2; }
.cap-item:nth-child(6) { grid-column: 1; grid-row: 2; }

/* Conectores tipo flecha entre tarjetas */
.cap-item::after {
  content: "";
  position: absolute;
  border-style: solid;
  border-color: transparent;
}

/* flecha hacia la derecha (en el gap horizontal) */
.cap-item--right::after {
  top: 50%;
  right: -2.15rem;
  transform: translateY(-50%);
  border-width: 8px 0 8px 12px;
  border-left-color: var(--color-vino);
}

/* flecha hacia la izquierda */
.cap-item--left::after {
  top: 50%;
  left: -2.15rem;
  transform: translateY(-50%);
  border-width: 8px 12px 8px 0;
  border-right-color: var(--color-vino);
}

/* flecha hacia abajo (giro de la culebra, lado derecho) */
.cap-item--down::after {
  left: 50%;
  bottom: -1.25rem;
  transform: translateX(-50%);
  border-width: 12px 8px 0 8px;
  border-top-color: var(--color-vino);
}

/* Tarjeta de capacidad */
.cap-card {
  position: relative;
  height: 100%;
  background-color: #ffffff;
  border: 1px solid rgba(12, 18, 12, 0.08);
  border-top: 3px solid var(--color-vino);
  border-radius: 6px;
  padding: 1.4rem 1.5rem;
  box-shadow: 0 6px 18px rgba(12, 18, 12, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(12, 18, 12, 0.12);
}

.cap-card__num {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-azul);
  margin-bottom: 0.4rem;
}

.cap-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-negro);
  margin-bottom: 0.5rem;
}

.cap-card__text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-gris);
}

/* Serpentina de 2 columnas en pantallas medianas */
@media (min-width: 561px) and (max-width: 900px) {
  .cap-flow { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 3.25rem; }

  /* fila1: 01 02 | fila2: 04 03 | fila3: 05 06 */
  .cap-item:nth-child(1) { grid-column: 1; grid-row: 1; }
  .cap-item:nth-child(2) { grid-column: 2; grid-row: 1; }
  .cap-item:nth-child(3) { grid-column: 2; grid-row: 2; }
  .cap-item:nth-child(4) { grid-column: 1; grid-row: 2; }
  .cap-item:nth-child(5) { grid-column: 1; grid-row: 3; }
  .cap-item:nth-child(6) { grid-column: 2; grid-row: 3; }

  /* rehacemos las flechas para el recorrido de 2 columnas */
  .cap-item::after { display: none; }
  .cap-item:nth-child(1)::after,
  .cap-item:nth-child(5)::after {
    display: block; top: 50%; right: -2.15rem; left: auto; transform: translateY(-50%);
    border-width: 8px 0 8px 12px; border-left-color: var(--color-vino); border-right-color: transparent; border-top-color: transparent;
  }
  .cap-item:nth-child(3)::after {
    display: block; top: 50%; left: -2.15rem; right: auto; transform: translateY(-50%);
    border-width: 8px 12px 8px 0; border-right-color: var(--color-vino); border-left-color: transparent; border-top-color: transparent;
  }
  .cap-item:nth-child(2)::after,
  .cap-item:nth-child(4)::after {
    display: block; left: 50%; bottom: -1.25rem; top: auto; transform: translateX(-50%);
    border-width: 12px 8px 0 8px; border-top-color: var(--color-vino); border-left-color: transparent; border-right-color: transparent;
  }
}

/* Una sola columna (vertical) en moviles */
@media (max-width: 560px) {
  .cap-flow { grid-template-columns: 1fr; gap: 2rem; }
  .cap-item { grid-column: 1 !important; grid-row: auto !important; }

  /* flecha hacia abajo entre todas, menos la ultima */
  .cap-item::after {
    display: block; left: 50%; bottom: -1.4rem; top: auto; right: auto;
    transform: translateX(-50%);
    border-width: 12px 8px 0 8px; border-color: transparent; border-top-color: var(--color-vino);
  }
  .cap-item:last-child::after { display: none; }
}

/* ===================== FOOTER ===================== */
.footer {
  flex-shrink: 0;
  background-color: var(--color-negro);
  border-top: 3px solid var(--color-vino);
  color: var(--color-blanco);
  padding: 2.5rem 1.5rem 1.5rem;
}

.footer__grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.footer__col {
  display: flex;
  flex-direction: column;
}

.footer__title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-blanco);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-vino);
}

.footer__line {
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(238, 240, 242, 0.8);
}

/* --- Formulario de contacto --- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* El atributo [hidden] debe ganarle al display:flex de arriba */
.contact-form[hidden] {
  display: none;
}

.contact-form__input {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-gris);
  border-radius: 4px;
  background-color: var(--color-blanco);
  color: var(--color-negro);
  resize: vertical;
}

.contact-form__input::placeholder {
  color: var(--color-gris);
}

.contact-form__input:focus {
  outline: none;
  border-color: var(--color-azul);
  box-shadow: 0 0 0 2px rgba(69, 105, 144, 0.35);
}

/* Marca campos invalidos solo despues de intentar enviar */
.contact-form.was-validated .contact-form__input:invalid {
  border-color: var(--color-vino);
}

.contact-form__btn {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.7rem 1rem;
  cursor: pointer;
  color: var(--color-blanco);
  background-color: var(--color-vino);
  border: 1px solid var(--color-vino);
  border-radius: 4px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.contact-form__btn:hover,
.contact-form__btn:focus-visible {
  background-color: var(--color-azul);
  border-color: var(--color-azul);
  outline: none;
}

.contact-form__success {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-blanco);
  background-color: var(--color-azul);
  padding: 1rem 1.15rem;
  border-radius: 4px;
}

.footer__legal {
  max-width: 1000px;
  margin: 2rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(238, 240, 242, 0.15);
  text-align: center;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: rgba(238, 240, 242, 0.75);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 640px) {
  :root {
    --header-height: 72px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .industrias__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}