/* 5ta Fondo — Premium automotive detailing */

:root {
  --brand-red: #ed2526;
  --brand-red-dark: #b81d1e;
  --brand-gold: #c9a227;
  --carbon: #0d0d0d;
  --graphite: #1a1a1a;
  --steel: #2a2a2a;
  --silver: #a8a8a8;
  --white: #f5f5f5;
  --whatsapp: #25d366;
  --whatsapp-dark: #1da851;
  --font-display: "Bebas Neue", sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --container: 1120px;
  --radius: 12px;
  --radius-sm: 8px;
  --header-h: 72px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--white);
  background: var(--carbon);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 2000;
  padding: 0.75rem 1rem;
  background: var(--brand-red);
  color: var(--white);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 1rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--whatsapp {
  background: var(--whatsapp);
  color: #fff;
}

.btn--whatsapp:hover {
  background: var(--whatsapp-dark);
}

.btn--outline {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.btn--outline:hover {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.btn--sm {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
}

/* Section utilities */

.section {
  padding: 5rem 0;
}

.section-eyebrow {
  margin: 0 0 0.5rem;
  color: var(--brand-red);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-eyebrow--center {
  text-align: center;
}

.section-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: 0.02em;
}

.section-subtitle {
  margin: 0;
  max-width: 560px;
  color: var(--silver);
}

.section-header {
  margin-bottom: 3rem;
}

.section-header .section-subtitle {
  margin-top: 0.75rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  background: rgba(13, 13, 13, 0.95);
  box-shadow: var(--shadow);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.site-header__logo img {
  width: auto;
  height: 56px;
}

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

.site-nav__list {
  display: flex;
  gap: 1.5rem;
}

.site-nav__list a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--silver);
  transition: color var(--transition);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  color: var(--white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0.5rem;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */

.hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 13, 13, 0.75) 0%, rgba(13, 13, 13, 0.92) 55%, var(--carbon) 100%),
    linear-gradient(90deg, rgba(237, 37, 38, 0.12) 0%, transparent 50%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__eyebrow {
  margin: 0 0 1rem;
  color: var(--brand-red);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.02em;
}

.hero__text {
  margin: 0 0 2rem;
  max-width: 560px;
  color: var(--silver);
  font-size: 1.05rem;
}

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

/* Brands carousel */

.brands {
  padding: 2.5rem 0;
  background: var(--graphite);
  border-block: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.brands__track {
  display: flex;
  width: max-content;
  animation: marquee 35s linear infinite;
}

.brands__slide {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding-right: 3rem;
}

.brands__slide img {
  height: 36px;
  width: auto;
  opacity: 0.65;
  filter: grayscale(1) brightness(1.2);
  transition: opacity var(--transition);
}

.brands__slide img:hover {
  opacity: 1;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Services */

.services {
  background: var(--carbon);
}

.services .container {
  width: min(100% - 2rem, 1360px);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: stretch;
}

.service-tier {
  display: flex;
  flex-direction: column;
  background: var(--graphite);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-tier--featured {
  border-color: rgba(237, 37, 38, 0.35);
  box-shadow: 0 0 0 1px rgba(237, 37, 38, 0.15), var(--shadow);
}

.service-tier__head {
  padding: 1.25rem 1rem 0.875rem;
  background: linear-gradient(135deg, rgba(237, 37, 38, 0.15), transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 8.5rem;
}

.service-tier__label {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.25rem 0.625rem;
  background: rgba(237, 37, 38, 0.2);
  color: var(--brand-red);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
}

.service-tier__label--gold {
  background: rgba(201, 162, 39, 0.2);
  color: var(--brand-gold);
}

.service-tier__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.1vw, 1.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.03em;
}

.service-list {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 0.875rem;
  gap: 0.625rem;
}

.service-card {
  padding: 0.875rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), background var(--transition);
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(237, 37, 38, 0.25);
}

.service-card--highlight {
  border-color: rgba(201, 162, 39, 0.3);
}

.service-card h4 {
  margin: 0 0 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
}

.service-card p {
  margin: 0 0 0.625rem;
  color: var(--silver);
  font-size: 0.8125rem;
  line-height: 1.45;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  color: var(--brand-red);
  font-size: 0.85rem;
  font-weight: 600;
  transition: color var(--transition);
}

.service-card__link:hover {
  color: var(--white);
}

.service-card__link::after {
  content: " →";
}

/* Gallery */

.gallery {
  background: var(--graphite);
}

.gallery__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1rem;
}

.gallery__item {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
}

.gallery__item--wide {
  grid-row: span 2;
  aspect-ratio: auto;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.gallery__cta {
  margin: 2rem 0 0;
  text-align: center;
  color: var(--silver);
}

.gallery__cta a {
  color: var(--brand-red);
  font-weight: 600;
}

.gallery__cta a:hover {
  color: var(--white);
}

/* About */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__content p {
  margin: 0 0 1rem;
  color: var(--silver);
}

.about__values {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.about__values li {
  padding: 1rem 1.25rem;
  background: var(--graphite);
  border-left: 3px solid var(--brand-red);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.about__values strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.about__values span {
  color: var(--silver);
  font-size: 0.875rem;
}

.about__media {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about__media img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

/* Process */

.process {
  background: var(--graphite);
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.process__step {
  position: relative;
  padding: 1.5rem;
  background: var(--carbon);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
}

.process__number {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--brand-red);
}

.process__step h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
}

.process__step p {
  margin: 0;
  color: var(--silver);
  font-size: 0.875rem;
}

/* Contact */

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

.contact__info > p {
  margin: 0 0 2rem;
  color: var(--silver);
}

.contact__details {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.contact__details li {
  display: grid;
  gap: 0.25rem;
}

.contact__label {
  color: var(--brand-red);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact__details a {
  color: var(--white);
  transition: color var(--transition);
}

.contact__details a:hover {
  color: var(--brand-red);
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact__social {
  display: flex;
  gap: 0.75rem;
}

.contact__social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--graphite);
  border-radius: 50%;
  transition: background var(--transition), transform var(--transition);
}

.contact__social a:hover {
  background: var(--steel);
  transform: translateY(-2px);
}

.contact__map {
  overflow: hidden;
  min-height: 420px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.contact__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 420px;
  border: 0;
}

/* Footer */

.site-footer {
  padding: 3rem 0 2rem;
  background: #080808;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer__inner {
  display: grid;
  gap: 1.5rem;
  justify-items: center;
  text-align: center;
}

.site-footer__logo img {
  height: 56px;
  width: auto;
  margin-inline: auto;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
}

.site-footer__nav a {
  color: var(--silver);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.site-footer__nav a:hover {
  color: var(--brand-red);
}

.site-footer__address,
.site-footer__copy {
  margin: 0;
  color: var(--silver);
  font-size: 0.875rem;
}

/* Floating actions */

.whatsapp-fab {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 900;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  background: var(--whatsapp);
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition), background var(--transition);
}

.whatsapp-fab:hover {
  transform: scale(1.08);
  background: var(--whatsapp-dark);
}

.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 5.5rem;
  z-index: 900;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--graphite);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
}

.back-to-top:hover {
  background: var(--brand-red);
  transform: translateY(-2px);
}

.back-to-top[hidden] {
  display: none;
}

/* Responsive */

@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-tier__head {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .services__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .gallery__grid {
    grid-template-columns: 1fr 1fr;
  }

  .gallery__item--wide {
    grid-column: span 2;
    grid-row: span 1;
    aspect-ratio: 16 / 9;
  }

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

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    background: rgba(13, 13, 13, 0.98);
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .site-nav__list a {
    font-size: 1.25rem;
  }

  .site-nav__cta {
    width: 100%;
    max-width: 280px;
  }

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

  .gallery__item--wide {
    grid-column: span 1;
  }

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

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .brands__track {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  .whatsapp-fab:hover,
  .back-to-top:hover,
  .gallery__item:hover img {
    transform: none;
  }
}