/* F&P — hoja de estilos compartida. Ver DESIGN.md para el spec completo. */

/* ===== Tokens ===== */
:root {
  --color-graphite: #313133;
  --color-steel: #4a4e54;
  --color-light: #ecedee;
  --color-cream: #ede6d8;
  --color-white: #ffffff;
  --color-orange: #f94101;
  --color-orange-dark: #c73401;
  --color-copper: #bd7445;
  --color-error: #c0392b;

  --font-display: "Oswald", "Arial Narrow", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --shadow-card: 0 4px 16px rgba(49, 49, 51, 0.12);
  --radius-sm: 4px;
  --container-max: 1200px;
  --space-section: 4rem;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.5s ease;
}

@media (min-width: 960px) {
  :root {
    --space-section: 6rem;
  }
}

/* ===== Base ===== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-graphite);
  background: var(--color-white);
  line-height: 1.6;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 1rem;
}

h1 {
  font-size: 2.5rem;
  text-transform: uppercase;
}

h2 {
  font-size: 1.75rem;
  text-transform: uppercase;
}

h3 {
  font-size: 1.25rem;
}

@media (min-width: 960px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.25rem; }
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--color-orange);
}

/* Foco visible en todo elemento interactivo — nunca se remueve sin reemplazo */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 960px) {
  .container {
    padding: 0 2rem;
  }
}

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

.section--alt {
  background: var(--color-cream);
}

.section--dark {
  background: var(--color-graphite);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-white);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 0.75rem;
}

/* Franja "hazard stripe" — acento de moderación, no fondo grande */
.hazard-divider {
  height: 8px;
  background: repeating-linear-gradient(
    -45deg,
    var(--color-graphite),
    var(--color-graphite) 12px,
    var(--color-orange) 12px,
    var(--color-orange) 24px
  );
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-orange);
  color: var(--color-graphite);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  font-weight: 600;
}

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

/* ===== Botones ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

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

.btn-primary:hover {
  background: var(--color-orange-dark);
  color: var(--color-white);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-graphite);
  color: var(--color-graphite);
}

.btn-secondary:hover {
  background: var(--color-graphite);
  color: var(--color-white);
}

.btn-secondary--on-dark {
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-secondary--on-dark:hover {
  background: var(--color-white);
  color: var(--color-graphite);
}

.btn-whatsapp {
  background: #25d366;
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: #1ebc59;
  color: var(--color-white);
}

/* ===== Header / Nav ===== */
.site-header {
  background: var(--color-graphite);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo-img {
  display: block;
  height: 52px;
  width: auto;
}

@media (min-width: 640px) {
  .logo-img {
    height: 64px;
  }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--color-white);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  cursor: pointer;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-white);
  position: relative;
}

.nav-toggle-icon::before {
  content: "";
  position: absolute;
  top: -6px;
}

.nav-toggle-icon::after {
  content: "";
  position: absolute;
  top: 6px;
}

.site-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  width: 100%;
}

.site-nav.is-open {
  display: flex;
}

.site-nav a {
  display: block;
  padding: 0.75rem 0.25rem;
  color: var(--color-white);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  min-height: 44px;
}

.site-nav a:hover {
  color: var(--color-orange);
}

.site-nav a.is-active {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .site-header .container {
    flex-wrap: nowrap;
  }

  .site-nav {
    display: flex;
    flex-direction: row;
    width: auto;
    gap: 1.75rem;
  }

  .site-nav a {
    padding: 0.5rem 0.1rem;
  }
}

/* ===== Hero ===== */
.hero {
  background: var(--color-graphite);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero .container {
  padding-top: 4rem;
  padding-bottom: 4rem;
  position: relative;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(49, 49, 51, 0.85), rgba(49, 49, 51, 0.85)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.05) 0, rgba(255, 255, 255, 0.05) 1px, transparent 1px, transparent 40px),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.05) 0, rgba(255, 255, 255, 0.05) 1px, transparent 1px, transparent 40px);
}

.hero-bg--photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg--photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(49, 49, 51, 0.55), rgba(49, 49, 51, 0.88));
}

.hero-bg--photo-warm img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

.hero-bg--photo-warm::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(30, 20, 10, 0.25), rgba(20, 14, 10, 0.75));
}

.hero p {
  max-width: 42ch;
  font-size: 1.1rem;
  color: var(--color-light);
}

/* ===== Barra de estadísticas ===== */
.stats-bar {
  background: var(--color-orange);
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  text-align: center;
}

@media (min-width: 640px) {
  .stats-bar .container {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--color-white);
}

@media (min-width: 960px) {
  .stat-item strong {
    font-size: 2.75rem;
  }
}

.stat-item span {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-graphite);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

/* ===== Grillas y tarjetas ===== */
.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

.grid--align-center {
  align-items: center;
}

.grid--align-start {
  align-items: start;
  gap: 3rem;
}

.mt-lg {
  margin-top: 1.5rem;
}

.hint--inline {
  display: inline;
}

.tag-list--lg li {
  font-size: 1rem;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-light);
  padding: 1.75rem;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  border-bottom: 3px solid transparent;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
  text-decoration: none;
  color: inherit;
  display: block;
}

.card:hover,
.card:focus-visible {
  box-shadow: var(--shadow-card);
  border-bottom-color: var(--color-orange);
}

.card h3 {
  margin-top: 0.5rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light);
  border-radius: var(--radius-sm);
  color: var(--color-orange);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0.75rem 0 0;
  list-style: none;
}

.tag-list li {
  background: var(--color-light);
  color: var(--color-graphite);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.badge-premium {
  color: var(--color-copper);
}

.capability-list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}

.capability-list li {
  margin-bottom: 0.4rem;
}

/* ===== Paneles de imagen (fotos y gráficos de marca reales) ===== */
.media-panel {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-graphite);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

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

/* Tarjeta de área con imagen a página completa + texto superpuesto */
.tile-card {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
  text-decoration: none;
  color: var(--color-white);
  background: var(--color-graphite);
}

.tile-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.tile-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(49, 49, 51, 0) 35%, rgba(49, 49, 51, 0.94) 100%);
}

.tile-card-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 1.5rem;
}

.tile-card-body h3 {
  color: var(--color-white);
  margin: 0.35rem 0 0.35rem;
}

.tile-card-body p {
  color: var(--color-light);
  margin: 0;
  font-size: 0.9rem;
}

.tile-card:hover img,
.tile-card:focus-visible img {
  transform: scale(1.06);
}

.tile-card:hover,
.tile-card:focus-visible {
  box-shadow: var(--shadow-card);
}

/* Catálogo horizontal de proyectos — se desliza como un carrusel */
.project-scroller {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.5rem;
  margin: 0 -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

@media (min-width: 960px) {
  .project-scroller {
    margin: 0;
    padding-left: 0;
    padding-right: 0;
  }
}

.project-scroller .tile-card {
  flex: 0 0 82%;
  scroll-snap-align: start;
  aspect-ratio: 4 / 5;
}

@media (min-width: 640px) {
  .project-scroller .tile-card {
    flex-basis: 46%;
  }
}

@media (min-width: 960px) {
  .project-scroller .tile-card {
    flex-basis: 28%;
  }
}

.project-scroller::-webkit-scrollbar {
  height: 8px;
}

.project-scroller::-webkit-scrollbar-thumb {
  background: var(--color-orange);
  border-radius: 4px;
}

/* Galería de fotos (piedra sinterizada) */
.photo-gallery {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .photo-gallery {
    grid-template-columns: repeat(3, 1fr);
  }

  .photo-gallery > :first-child {
    grid-column: span 2;
    grid-row: span 2;
  }
}

.photo-gallery img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.photo-gallery > :first-child img {
  aspect-ratio: 4 / 3;
}

@media (min-width: 640px) {
  .photo-gallery > :not(:first-child) img {
    aspect-ratio: 1 / 1;
  }
}

/* ===== Catálogos descargables ===== */
.catalog-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.catalog-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-light);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.catalog-card:hover,
.catalog-card:focus-visible {
  box-shadow: var(--shadow-card);
  border-color: var(--color-orange);
}

.catalog-card-icon {
  flex: none;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-graphite);
  color: var(--color-orange);
  border-radius: var(--radius-sm);
}

.catalog-card-icon svg {
  width: 22px;
  height: 22px;
}

.catalog-card h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.catalog-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-steel);
}

/* Mapa embebido */
.map-embed {
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.map-embed iframe {
  width: 100%;
  height: 320px;
  border: 0;
  display: block;
}

/* ===== Ficha técnica / tabla de precios ===== */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-light);
}

.spec-table th {
  background: var(--color-cream);
  color: var(--color-graphite);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.spec-table tbody tr:nth-child(even) {
  background: var(--color-light);
}

.spec-table .is-total td {
  background: var(--color-orange);
  color: var(--color-white);
  font-weight: 600;
}

/* ===== Formulario ===== */
.form-field {
  margin-bottom: 1.25rem;
}

.form-field label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.form-field .hint {
  display: block;
  font-size: 0.8rem;
  color: var(--color-steel);
  margin-top: 0.3rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font: inherit;
  padding: 0.75rem;
  border: 1px solid var(--color-steel);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-graphite);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-orange);
}

.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
  border-color: var(--color-error);
}

.form-field .error-message {
  display: none;
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: 0.4rem;
  font-weight: 500;
}

.form-field.has-error .error-message {
  display: block;
}

.form-status {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  background: #e5f3ea;
  color: #1e7a3c;
}

.form-status.is-error {
  background: #fbe9e7;
  color: var(--color-error);
}

/* ===== Info de contacto ===== */
.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.info-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-light);
}

.info-list strong {
  display: block;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-graphite);
  color: var(--color-light);
}

.site-footer .container {
  padding-top: 3rem;
  padding-bottom: 3rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .site-footer .container {
    grid-template-columns: repeat(3, 1fr);
  }
}

.site-footer h3 {
  color: var(--color-white);
  font-size: 1rem;
  text-transform: uppercase;
}

.site-footer a {
  color: var(--color-light);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-orange);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  padding: 1.25rem 0;
  font-size: 0.85rem;
  color: var(--color-steel);
}

/* ===== Scroll reveal (L1) ===== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

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

  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}