/* ============================================================
   COROPORACIÓN ROYT ARGENTINA SA — Hoja de estilos
   Mobile-first. Variables al inicio para cambiar la marca rápido.
   ============================================================ */

/* ---------- 1. Variables ---------- */
:root {
  /* Paleta */
  --color-primary:      #022035;   /* Azul corporativo */
  --color-primary-soft: #0E3B5A;   /* Azul más claro para gradients */
  --color-accent:       #F58934;   /* Naranja */
  --color-accent-dark:  #D86E1E;   /* Naranja más oscuro para hover */
  --color-light:        #F5F5F5;
  --color-white:        #FFFFFF;
  --color-text:         #1A1A1A;
  --color-muted:        #6C757D;
  --color-border:       #E5E7EB;

  /* Tipografía */
  --font-body:    'Barlow', system-ui, -apple-system, sans-serif;
  --font-display: 'Barlow Condensed', 'Barlow', sans-serif;

  /* Espaciado y layout */
  --container-max: 1200px;
  --section-pad-y: 4rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Sombras */
  --shadow-sm: 0 2px 6px rgba(2, 32, 53, 0.06);
  --shadow-md: 0 8px 24px rgba(2, 32, 53, 0.10);
  --shadow-lg: 0 20px 50px rgba(2, 32, 53, 0.15);

  /* Transiciones */
  --t-fast: 150ms ease;
  --t-base: 250ms ease;

  /* Navbar */
  --navbar-h: 72px;
}

/* ---------- 2. Reset y base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-h);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
}

p {
  margin: 0 0 1em;
}

/* ---------- 3. Utilidades ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.text-accent {
  color: var(--color-accent);
}

.section {
  padding: var(--section-pad-y) 0;
}

.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section__header--light {
  color: var(--color-white);
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 0.75rem;
  color: inherit;
}

.section__lead {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 580px;
  margin: 0 auto;
}

.section__header--light .section__lead {
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- 4. Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--t-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

/* ---------- 5. Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(2, 32, 53, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  height: var(--navbar-h);
  transition: box-shadow var(--t-base), background var(--t-base);
}

.navbar.is-scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  color: var(--color-white);
}

.navbar__logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.navbar__logo-sub {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar__menu {
  display: none; /* mobile: oculto, se muestra en desktop */
  gap: 1.75rem;
}

.navbar__link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 0.25rem 0;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--t-base);
}

.navbar__link:hover,
.navbar__link:focus-visible {
  color: var(--color-white);
}

.navbar__link:hover::after,
.navbar__link:focus-visible::after {
  width: 100%;
}

.navbar__cta {
  display: none; /* mobile: oculto */
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
}

/* Hamburguesa */
.navbar__toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  padding: 0;
}

.navbar__toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}

.navbar__toggle.is-open span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}
.navbar__toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.navbar__toggle.is-open span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

/* Menú mobile desplegable */
@media (max-width: 899px) {
  .navbar__nav {
    position: fixed;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1.5rem 1.25rem 2rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-110%);
    transition: transform var(--t-base);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .navbar__nav.is-open {
    transform: translateY(0);
  }

  .navbar__menu {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .navbar__link {
    display: block;
    padding: 1rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .navbar__cta {
    display: inline-flex;
    margin-top: 1.25rem;
    align-self: center;
    width: 100%;
  }
}

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: calc(var(--navbar-h) + 3rem) 0 4rem;
  /* TODO: reemplazar background con foto real (ver index.html, sección 2) */
  background:
    linear-gradient(135deg, rgba(2, 32, 53, 0.92) 0%, rgba(14, 59, 90, 0.85) 100%),
    radial-gradient(ellipse at top right, rgba(245, 137, 52, 0.18), transparent 60%),
    var(--color-primary);
  color: var(--color-white);
  overflow: hidden;
}

/* Patrón decorativo sutil */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 780px;
}

.hero__title {
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  margin-bottom: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 2rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  max-width: 640px;
}

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

.hero__stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.hero__stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- 7. Servicios ---------- */
.servicios {
  background: var(--color-light);
}

.servicios__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card-servicio {
  background: var(--color-white);
  padding: 2rem 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  position: relative;
  overflow: hidden;
}

.card-servicio::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}

.card-servicio:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.card-servicio:hover::before {
  transform: scaleX(1);
}

.card-servicio__icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(245, 137, 52, 0.12);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-servicio__icon svg {
  width: 28px;
  height: 28px;
}

.card-servicio__title {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.card-servicio__text {
  color: var(--color-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- 8. Quiénes somos ---------- */
.nosotros {
  background: var(--color-white);
}

.nosotros__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.nosotros__media {
  order: -1;
}

.nosotros__placeholder {
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  padding: 1rem;
}

.nosotros__placeholder small {
  display: block;
  font-size: 0.75rem;
  margin-top: 0.5rem;
  text-transform: none;
  letter-spacing: 0.04em;
  opacity: 0.7;
}

.nosotros__text {
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.nosotros__diferenciales {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.nosotros__diferenciales li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  font-size: 0.97rem;
  color: var(--color-text);
}

.nosotros__check {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 1px;
}

/* ---------- 9. Galería ---------- */
.instalaciones {
  background: var(--color-light);
}

.galeria {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.galeria__item {
  display: block;
  width: 100%;
  padding: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--t-base), box-shadow var(--t-base);
  background: var(--color-primary);
}

.galeria__item:hover,
.galeria__item:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.galeria__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  transition: transform 500ms ease;
}

.galeria__item:hover img {
  transform: scale(1.05);
}

.galeria__placeholder {
  aspect-ratio: 3 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 1rem;
  text-align: center;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(2, 32, 53, 0.95);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.lightbox.is-open {
  display: flex;
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-family: var(--font-body);
  transition: background var(--t-fast);
  z-index: 1;
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.lightbox__close {
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  line-height: 1;
}

.lightbox__nav--prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__nav--next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__figure {
  margin: 0;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.lightbox__content {
  max-width: 90vw;
  max-height: 75vh;
  background: var(--color-primary-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4rem 6rem;
  text-align: center;
}

.lightbox__content img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
}

.lightbox__caption {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  text-align: center;
}

/* ---------- 10. Contacto ---------- */
.contacto {
  background: var(--color-primary);
  color: var(--color-white);
}

.contacto__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

/* Formulario */
.form {
  background: var(--color-white);
  color: var(--color-text);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.form input,
.form select,
.form textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245, 137, 52, 0.15);
}

.form textarea {
  resize: vertical;
  min-height: 120px;
}

.form__submit {
  align-self: flex-start;
  margin-top: 0.5rem;
}

.form__status {
  margin: 0;
  min-height: 1.2em;
  font-size: 0.95rem;
}

.form__status.is-success {
  color: #1a7a3a;
}

.form__status.is-error {
  color: #b00020;
}

/* Info de contacto */
.contacto__info-title {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--color-white);
}

.contacto__lista {
  display: grid;
  gap: 1.1rem;
  margin-bottom: 2rem;
}

.contacto__lista li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.contacto__lista strong {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--color-accent);
}

.contacto__lista a {
  color: rgba(255, 255, 255, 0.9);
}

.contacto__lista a:hover {
  color: var(--color-accent);
}

.contacto__mapa {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--color-primary-soft);
}

/* ---------- 11. Footer ---------- */
.footer {
  background: #011019;
  color: rgba(255, 255, 255, 0.75);
  padding-top: 3rem;
  font-size: 0.93rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.75rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.75rem;
}

.footer__tagline {
  max-width: 300px;
  margin: 0 0 1.25rem;
  font-size: 0.92rem;
  line-height: 1.5;
}

.footer__social {
  display: flex;
  gap: 0.6rem;
}

.footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.8);
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
}

.footer__social a:hover,
.footer__social a:focus-visible {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__heading {
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer__nav ul {
  display: grid;
  gap: 0.5rem;
}

.footer__nav a:hover {
  color: var(--color-accent);
}

.footer__legal p {
  margin: 0 0 0.35em;
  font-size: 0.9rem;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

.footer__bottom p {
  margin: 0;
}

/* ============================================================
   12. RESPONSIVE — breakpoints mobile-first
   ============================================================ */

/* Tablet vertical: 600px+ */
@media (min-width: 600px) {
  :root {
    --section-pad-y: 5rem;
  }

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

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

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

/* Tablet horizontal: 768px+ */
@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }

  .galeria {
    grid-template-columns: repeat(3, 1fr);
  }

  .form {
    padding: 2.5rem;
  }
}

/* Desktop: 900px+ */
@media (min-width: 900px) {
  :root {
    --section-pad-y: 6rem;
  }

  /* Navbar */
  .navbar__toggle {
    display: none;
  }

  .navbar__menu {
    display: flex;
  }

  .navbar__cta {
    display: inline-flex;
  }

  /* Servicios */
  .servicios__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }

  /* Quiénes somos */
  .nosotros__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 4rem;
  }

  .nosotros__media {
    order: 0;
  }

  /* Contacto */
  .contacto__grid {
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 2fr 1fr 1.3fr;
  }
}

/* Desktop grande: 1100px+ */
@media (min-width: 1100px) {
  .galeria {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================================
   13. Accesibilidad
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}