:root {
  --color-background: #f7f8fb;
  --color-primary: #0e1b2c;
  --color-accent: #1f6f6b;
  --color-muted: #6b7280;
  --color-card: #ffffff;
  --transition: 200ms ease;
  font-size: clamp(14px, 1.1vw, 18px);
}

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

body {
  font-family: 'Montserrat', sans-serif;
  min-height: 100vh;
  background-color: var(--color-background);
  color: var(--color-primary);
  overflow-x: hidden;
}

#background-carousel {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: opacity 1s ease-in-out;
  filter: grayscale(0.2) brightness(0.92);
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.7);
  z-index: -1;
}

/* Ajuste de alineación entre logo, título y subtítulo */
.site-header {
  position: static;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: clamp(1.2rem, 4vw, 1.8rem) clamp(1.2rem, 5vw, 2.5rem);
  max-width: 1100px;
  margin: 0 auto;
}

.site-heading {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 0.3rem;
}

.site-logo {
  width: clamp(62px, 8vw, 92px);
  height: auto;
}

.site-title {
  letter-spacing: 0.18em;
  font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  color: var(--color-primary);
  text-transform: uppercase;
  line-height: 1.05;
}

.site-tagline {
  font-size: clamp(0.95rem, 2.4vw, 1.1rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--color-muted);
  text-transform: uppercase;
  line-height: 1.2;
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2rem, 5vw, 3.25rem);
  min-height: 100vh;
  padding: clamp(1rem, 5vw, 3.5rem);
  padding-top: clamp(1rem, 8vh, 2.5rem);
}

.projects {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 480px;
}

.view-images {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-top: 0.3rem;
}

.view-images-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.8rem;
  border-radius: 999px;
  border: 1.5px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: clamp(0.9rem, 2vw, 1rem);
  transition: color var(--transition), border-color var(--transition), box-shadow var(--transition),
    transform var(--transition);
}

.view-images-button:hover,
.view-images-button:focus-visible {
  border-color: #14514d;
  color: #14514d;
  box-shadow: 0 8px 20px rgba(15, 27, 44, 0.08);
  transform: translateY(-1px);
  outline: none;
}

.about {
  width: min(760px, 100%);
  display: flex;
  justify-content: center;
  margin-top: clamp(0.5rem, 6vh, 2.5rem);
}

.about-card {
  width: 100%;
  padding: clamp(1.25rem, 3vw, 1.85rem) clamp(1.25rem, 4vw, 2rem);
  border-radius: 14px;
  background: var(--color-card);
  border: 1px solid #e5e7eb;
  color: var(--color-primary);
  display: grid;
  gap: clamp(0.85rem, 2vw, 1.35rem);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 350ms ease, transform 350ms ease;
  will-change: opacity, transform;
  box-shadow: 0 10px 24px rgba(15, 27, 44, 0.08);
}

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

.about-card h2 {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  color: var(--color-primary);
}

.about-card p {
  line-height: 1.65;
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  color: #1f2937;
}

.site-footer {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.5rem, 5vw, 2.5rem);
  background: #0f1826;
  color: #e5e7eb;
}

.footer-content {
  width: min(1240px, calc(100% - 2.5rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: clamp(2.75rem, 6vw, 4.5rem);
  row-gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
  justify-items: start;
  justify-content: center;
  /* Mantener las tres columnas perfectamente alineadas en desktop */
}

.footer-column {
  display: grid;
  gap: 0.75rem;
  align-content: start;
  padding-inline: 0.25rem;
}

.footer-subtitle {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca3af;
  font-weight: 400;
}

.footer-social {
  align-self: flex-start;
  margin-left: 8ch;
}

.footer-heading {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  color: #ffffff;
}

.footer-list {
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0;
  color: #e5e7eb;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: #9bd4cf;
  outline: none;
}

.footer-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: #9bd4cf;
}

.footer-label {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffffff;
}

.footer-value {
  color: #e5e7eb;
}

.social-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.social-link {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #e5e7eb;
  text-decoration: none;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

.social-link:hover,
.social-link:focus-visible {
  background: rgba(155, 212, 207, 0.15);
  color: #ffffff;
  transform: translateY(-1px);
  outline: none;
}

@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    width: 100%;
  }

  .footer-column {
    gap: 0.5rem;
  }
}

.project-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  list-style: none;
}

.project-item {
  width: 100%;
  display: flex;
  justify-content: center;
}

.project-mobile-details {
  display: none;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.6rem;
  padding: clamp(0.85rem, 2.5vw, 1.1rem);
  border-radius: 10px;
  background: #f3f4f6;
  color: var(--color-primary);
  border: 1px solid #e5e7eb;
}

.project-mobile-actions {
  display: flex;
  justify-content: center;
}

.project-mobile-description {
  font-size: 0.95rem;
  line-height: 1.55;
  color: #1f2937;
}

.project-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(560px, 100%);
  min-height: 52px;
  padding: clamp(0.72rem, 2vw, 0.95rem) clamp(1.1rem, 2.5vw, 1.5rem);
  margin: 0 auto;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #ffffff;
  color: var(--color-primary);
  font-weight: 600;
  font-size: clamp(0.92rem, 2.1vw, 1.05rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.project-button:hover,
.project-button:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 10px 24px rgba(15, 27, 44, 0.08);
  transform: translateY(-1px);
  outline: none;
}

.project-item img,
.project-item picture {
  display: none !important;
}

.project-panel {
  --panel-edge-padding: clamp(1.5rem, 4vw, 3rem);
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--panel-edge-padding) + env(safe-area-inset-top, 0px))
    calc(var(--panel-edge-padding) + env(safe-area-inset-right, 0px))
    calc(var(--panel-edge-padding) * 2 + env(safe-area-inset-bottom, 0px))
    calc(var(--panel-edge-padding) + env(safe-area-inset-left, 0px));
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 400ms ease;
  z-index: 5;
}

.project-panel.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-surface {
  background: #ffffff;
  border-radius: 16px;
  padding: clamp(1.25rem, 4vw, 2.2rem);
  box-shadow: 0 22px 48px rgba(15, 27, 44, 0.18);
}

.panel-wrapper {
  position: relative;
  width: min(78vw, 1040px);
  max-height: calc(min(76.5vh, 663px) - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2vw, 1.5rem);
  overflow: hidden;
  margin-top: clamp(2rem, 8vh, 3rem);
  margin-bottom: clamp(2rem, 8vh, 3rem);
}

.project-modal-mobile {
  width: min(78vw, 1040px);
  max-height: calc(min(76.5vh, 663px) - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
}

.close-panel {
  position: absolute;
  top: clamp(0.5rem, 1.5vw, 1rem);
  right: clamp(0.5rem, 1.5vw, 1rem);
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: clamp(1.5rem, 3vw, 2rem);
  cursor: pointer;
  transition: color var(--transition);
}

.close-panel:hover,
.close-panel:focus {
  color: var(--color-muted);
}


.panel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 2vw, 1.75rem);
  height: 100%;
  overflow-y: auto;
  padding-right: clamp(0.5rem, 1.5vw, 1rem);
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
  scrollbar-gutter: stable both-edges;
}

.panel-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.panel-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 18px 32px rgba(15, 23, 42, 0.12);
}

.panel-media-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  border: 1.5px dashed #cbd5e1;
  background: linear-gradient(135deg, #f9fafb 0%, #eef2f7 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.panel-content {
  flex: 1 1 300px;
  min-width: min(300px, 100%);
  overflow-y: auto;
  padding-right: clamp(0.5rem, 1.5vw, 1rem);
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
}

@media (min-width: 768px) {
  .panel-layout {
    grid-template-columns: minmax(260px, 0.9fr) 1.1fr;
    align-items: start;
  }
}

.panel-section {
  display: flex;
  flex-direction: column;
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
}

.panel-actions {
  display: flex;
  justify-content: flex-start;
}

.panel-actions .view-images-button {
  padding-inline: 1.4rem;
}

.panel-content h3,
.panel-content p,
.panel-content dl,
.panel-content ul,
.panel-content h4 {
  margin: 0;
}

.gallery-overlay {
  position: fixed;
  inset: 0;
  display: none;
  justify-content: center;
  align-items: center;
  padding: clamp(1rem, 5vw, 2rem);
  background: rgba(0, 0, 0, 0.5);
  z-index: 30;
}

.gallery-overlay.is-visible {
  display: flex;
}

.gallery-modal {
  position: relative;
  width: min(1000px, 95vw);
  max-height: 90vh;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 22px 48px rgba(15, 27, 44, 0.2);
  overflow-y: auto;
}

.gallery-title {
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  color: var(--color-primary);
}

.gallery-close {
  position: absolute;
  top: clamp(0.75rem, 2vw, 1rem);
  right: clamp(0.75rem, 2vw, 1rem);
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: clamp(1.8rem, 4vw, 2.2rem);
  cursor: pointer;
  transition: color var(--transition), transform var(--transition);
}

.gallery-close:hover,
.gallery-close:focus-visible {
  color: var(--color-muted);
  transform: scale(1.05);
  outline: none;
}

.gallery-carousel {
  --carousel-gap: clamp(0.75rem, 1.5vw, 1.25rem);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(0.5rem, 1vw, 0.75rem);
}

.carousel-window {
  overflow: hidden;
}

.carousel-track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--carousel-gap);
}

.carousel-slide {
  border-radius: 12px;
  overflow: hidden;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 18px rgba(15, 27, 44, 0.06);
  height: 210px;
}

.carousel-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(2.5rem, 5vw, 3rem);
  height: clamp(2.5rem, 5vw, 3rem);
  border-radius: 50%;
  border: 1px solid #d1d5db;
  background: #f3f4f6;
  color: var(--color-primary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition),
    border-color var(--transition);
}

.carousel-control:hover,
.carousel-control:focus-visible {
  background: #e5e7eb;
  color: var(--color-accent);
  border-color: #cbd5e1;
  transform: translateY(-1px);
  outline: none;
}

.carousel-control:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  padding: clamp(1.25rem, 4vw, 2.5rem);
  z-index: 40;
}

.lightbox-overlay.is-visible {
  display: flex;
}

.lightbox-content { 
  position: relative;
  background: #ffffff;
  border-radius: 14px;
  padding: clamp(0.75rem, 2vw, 1.1rem);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.25);
  max-width: min(1200px, 96vw);
  max-height: min(90vh, 920px);
  width: 100%;
  display: grid;
  place-items: center;
}

.lightbox-content img {
  width: 100%;
  height: auto;
  max-height: calc(90vh - clamp(2.5rem, 8vw, 4rem));
  object-fit: contain;
  border-radius: 10px;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(2.8rem, 6vw, 3.2rem);
  height: clamp(2.8rem, 6vw, 3.2rem);
  border-radius: 50%;
  border: 1px solid #d1d5db;
  background: rgba(255, 255, 255, 0.94);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition), background var(--transition), color var(--transition),
    border-color var(--transition);
}

.lightbox-nav:hover,
.lightbox-nav:focus-visible {
  background: #e5e7eb;
  color: var(--color-accent);
  border-color: #cbd5e1;
  transform: translateY(-50%) scale(1.04);
  outline: none;
}

.lightbox-nav:active {
  transform: translateY(-50%) scale(0.98);
}

#lightbox-prev {
  left: clamp(0.75rem, 2vw, 1.25rem);
}

#lightbox-next {
  right: clamp(0.75rem, 2vw, 1.25rem);
}

.lightbox-close {
  position: absolute;
  top: clamp(0.5rem, 2vw, 0.75rem);
  right: clamp(0.5rem, 2vw, 0.75rem);
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: clamp(1.6rem, 4vw, 2rem);
  cursor: pointer;
  transition: color var(--transition), transform var(--transition);
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  color: var(--color-accent);
  transform: scale(1.05);
  outline: none;
}

.panel-error-message {
  grid-column: 1 / -1;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: #fef3c7;
  color: #854d0e;
  border: 1px solid #fcd34d;
  font-weight: 600;
}

.panel-location {
  font-weight: 500;
  color: var(--color-muted);
}

.panel-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.panel-meta dt {
  font-weight: 600;
  color: var(--color-primary);
}

.panel-description {
  line-height: 1.6;
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
}

#panel-highlights {
  list-style: square;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.5rem;
}

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

.whatsapp-fab {
  position: fixed;
  bottom: clamp(1rem, 3vw, 1.5rem);
  right: clamp(1rem, 3vw, 1.5rem);
  width: clamp(3.25rem, 6vw, 3.75rem);
  height: clamp(3.25rem, 6vw, 3.75rem);
  border-radius: 50%;
  background: #25d366;
  color: #0c2613;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.16);
  border: 2px solid rgba(12, 38, 19, 0.12);
  cursor: grab;
  transition: transform var(--transition), box-shadow var(--transition);
  z-index: 20;
  touch-action: none;
}

.whatsapp-fab:hover,
.whatsapp-fab:focus-visible {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.22);
  outline: none;
}

.whatsapp-fab:active,
.whatsapp-fab.is-dragging {
  cursor: grabbing;
  transform: scale(0.98);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

@media (max-width: 1024px) {
  .panel-content {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .site-header {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 0.9rem;
  }

  /* Bloque de texto alineado y calibrado junto al logo en mobile */
  .site-heading {
    align-items: flex-start;
    width: auto;
    max-width: none;
    gap: 0.25rem;
  }

  .site-title {
    width: 100%;
    display: block;
    font-size: clamp(2.3rem, 8.5vw, 3.15rem);
    letter-spacing: 0.28em;
    font-weight: 800;
    line-height: 1.02;
    white-space: nowrap;
  }

  .site-tagline {
    width: 100%;
    display: block;
    line-height: 1.15;
    letter-spacing: 0.24em;
    font-size: clamp(1rem, 3.2vw, 1.18rem);
    white-space: nowrap;
  }

  /* Logo calibrado para igualar la altura del bloque de texto */
  .site-logo {
    height: clamp(78px, 20vw, 104px);
    max-height: 110px;
    width: auto;
    object-fit: contain;
  }

  .content {
    padding-top: clamp(1rem, 8vh, 2.75rem);
  }

  .projects {
    max-width: 100%;
  }

  .about {
    width: 100%;
  }

  /* Ocultar el detalle móvil en pantallas pequeñas */
  .project-mobile-details {
    display: none;
  }

  /* Botón de proyecto centrado y de ancho reducido en mobile */
  .project-item {
    display: flex;
    justify-content: center;
  }

  .project-button {
    width: min(68%, 360px);
    margin: 0 auto;
    padding: 0.75rem 1.1rem;
  }

  .project-panel {
    --panel-edge-padding: clamp(1rem, 6vw, 2rem);
    padding: calc(var(--panel-edge-padding) + env(safe-area-inset-top, 0px))
      calc(var(--panel-edge-padding) + env(safe-area-inset-right, 0px))
      calc(var(--panel-edge-padding) * 1.8 + env(safe-area-inset-bottom, 0px))
      calc(var(--panel-edge-padding) + env(safe-area-inset-left, 0px));
    align-items: center;
  }

  .modal-surface {
    border-radius: 14px;
    padding: clamp(1rem, 5vw, 1.6rem);
    box-shadow: 0 16px 40px rgba(15, 27, 44, 0.18);
  }

  .panel-wrapper {
    width: min(94vw, 520px);
    max-height: calc(75vh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    margin-top: clamp(1.25rem, 6vh, 2rem);
    margin-bottom: clamp(1.25rem, 6vh, 2rem);
  }

  .project-modal-mobile {
    --project-modal-margin: clamp(1.4rem, 7vh, 2.4rem);
    width: min(520px, calc(100% - 2.5rem - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
    margin: var(--project-modal-margin) auto;
    max-height: calc(75vh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  }

  .project-modal-mobile .panel-layout {
    padding-bottom: 2rem;
  }

  /* Footer apilado en una columna para mobile */
  .footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
  }

  .footer-column {
    width: 100%;
    gap: 0.55rem;
    align-items: center;
    justify-items: center;
    text-align: center;
  }

  .footer-heading {
    font-size: 0.95rem;
  }

  .footer-subtitle,
  .footer-value,
  .footer-link {
    font-size: 0.9rem;
  }

  .footer-label {
    font-size: 0.85rem;
  }

  .footer-social {
    margin-left: 0;
    align-items: center;
    gap: 0.65rem;
  }

  .social-links {
    width: 100%;
    justify-content: center;
  }
}