:root {
  --color-primary: #101820;
  --color-secondary: #c89b3c;
  --color-light: #ffffff;
  --color-dark: #121416;
  --color-muted: rgba(255, 255, 255, 0.72);
  --font-body: 'Arial', sans-serif;
  --font-display: 'Playfair Display', serif;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-dark);
  background: #f6f6f6;
  line-height: 1.6;
}

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

a:hover,
a:focus {
  text-decoration: underline;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Cabecera fija con fondo semitransparente y soporte móvil */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(16, 24, 32, 0.9);
  backdrop-filter: blur(12px);
  color: var(--color-light);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 0;
}

.brand img {
  width: clamp(140px, 20vw, 220px);
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--color-secondary);
}

.header__phone svg {
  width: 1.75rem;
  height: 1.75rem;
  fill: var(--color-light);
  transition: transform var(--transition);
}

.header__phone:hover svg,
.header__phone:focus svg {
  transform: scale(1.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: transparent;
  color: var(--color-light);
  transition: var(--transition);
}

.nav-toggle span {
  display: block;
  width: 1.4rem;
  height: 2px;
  margin-inline: auto;
  background: currentColor;
  transition: var(--transition);
}

.nav-toggle.is-open span:nth-child(2) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(3) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(4) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Hero responsivo con carrusel animado */
.hero {
  position: relative;
  min-height: clamp(520px, 85vh, 760px);
  color: var(--color-light);
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(16, 24, 32, 0.85), rgba(16, 24, 32, 0.35));
  z-index: 1;
}

.hero__slides {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(3, 100%);
  animation: hero-slide 18s infinite;
}

.hero__slide {
  position: relative;
}

.hero__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes hero-slide {
  0%, 33% {
    transform: translateX(0);
  }
  38%, 71% {
    transform: translateX(-100%);
  }
  76%, 100% {
    transform: translateX(-200%);
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 1.5rem;
  padding-block: 4rem;
}

.hero__eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  max-width: 16ch;
}

.hero p {
  max-width: 42ch;
  color: rgba(255, 255, 255, 0.88);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: var(--transition);
}

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

.btn--primary:hover,
.btn--primary:focus {
  filter: brightness(1.05);
}

.btn--ghost {
  border-color: var(--color-light);
  color: var(--color-light);
  background: transparent;
}

.btn--ghost:hover,
.btn--ghost:focus {
  background: rgba(255, 255, 255, 0.1);
}

.btn--outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.btn--outline:hover,
.btn--outline:focus {
  background: rgba(16, 24, 32, 0.08);
}

.btn--inverse {
  background: var(--color-light);
  color: var(--color-primary);
}

.section {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.section__header {
  text-align: center;
  max-width: 55ch;
  margin: 0 auto 2.5rem;
  display: grid;
  gap: 0.75rem;
}

.section__header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.8rem);
  color: var(--color-primary);
}

.section__header p {
  color: #404040;
}

.about {
  background: var(--color-light);
}

.about__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.about__content {
  display: grid;
  gap: 1rem;
}

.about__content h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 2.8rem);
}

.about__content p {
  color: #3a3a3a;
}

.about__media {
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: 0 18px 45px rgba(16, 24, 32, 0.15);
}

.services {
  background: #ffffff;
}

.services__grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.service-card {
  background: #fafafa;
  padding: 2rem 1.75rem;
  border-radius: 1.25rem;
  display: grid;
  gap: 1rem;
  border: 1px solid rgba(16, 24, 32, 0.05);
  box-shadow: 0 18px 36px rgba(16, 24, 32, 0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover,
.service-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(16, 24, 32, 0.12);
}

.service-card__icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 0.85rem;
  display: grid;
  place-items: center;
  background: rgba(200, 155, 60, 0.15);
  color: var(--color-secondary);
}

.service-card__icon svg {
  width: 1.75rem;
  height: 1.75rem;
  fill: currentColor;
}

.service-card h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
}

.service-card p {
  color: #4a4a4a;
}

.cta {
  background: var(--color-primary);
  color: var(--color-light);
  text-align: center;
}

.cta__content {
  display: grid;
  gap: 1rem;
  justify-items: center;
}

.cta__content h2 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3rem);
}

.footer {
  background: #0c1014;
  color: rgba(255, 255, 255, 0.86);
  padding-top: 3.5rem;
}

.footer__grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer__brand h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-top: 0;
}

.footer__contact a {
  display: block;
  margin-bottom: 0.5rem;
  color: rgba(255, 255, 255, 0.86);
}

.footer__contact a:hover,
.footer__contact a:focus {
  color: var(--color-secondary);
}

.map-frame {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 16px 32px rgba(16, 24, 32, 0.2);
}

.map-frame iframe {
  width: 100%;
  min-height: 220px;
  border: 0;
}

.map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.86);
}

.map-link:hover,
.map-link:focus {
  color: var(--color-secondary);
}

.footer__note {
  margin: 3rem auto 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  padding-bottom: 2rem;
}

/* Adaptaciones responsivas para móviles y tablets */
@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    inset: 0;
    background: rgba(12, 16, 20, 0.95);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .site-nav ul {
    flex-direction: column;
    gap: 1.75rem;
    font-size: 1.3rem;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .header__phone {
    display: none;
  }

  .hero__content {
    padding-block: 6rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero p,
  .hero h1 {
    margin-inline: auto;
    text-align: center;
  }

  .hero__eyebrow {
    text-align: center;
  }
}

@media (max-width: 600px) {
  html {
    font-size: 15px;
  }

  .header__inner {
    gap: 1rem;
  }

  .section {
    padding-block: 3rem;
  }

  .service-card {
    padding: 1.75rem;
  }

  .footer {
    text-align: center;
  }

  .map-link {
    justify-items: center;
  }
}