/* ==========================================================================
   COMPONENTS CSS — BUFFALO MANUFACTURA ARQUITECTÓNICA
   Header, Footer, Cards, Modals, Navigation, Badges (Luminous Light Theme)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HEADER / NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  min-height: var(--header-height);
  height: auto;
  z-index: 1000;
  display: flex;
  align-items: center;
  background-color: rgba(250, 244, 240, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(43, 18, 76, 0.08);
  transition: background-color var(--transition-fast), padding var(--transition-fast), border-bottom var(--transition-fast), box-shadow var(--transition-fast);
  padding: 0.6rem 0;
}

.site-header.is-scrolled {
  background-color: rgba(250, 244, 240, 0.96);
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(43, 18, 76, 0.15);
  box-shadow: 0 4px 20px rgba(25, 0, 25, 0.05);
}

.header-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.8rem;
  width: 100%;
  padding: 0.5rem 0;
}

.header-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--color-carbon-profundo);
  text-decoration: none;
  z-index: 1010;
}

.brand-logo-svg,
.brand-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  color: var(--color-purpura-arquitectonico);
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .brand-logo-svg,
.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.04);
}

.brand-name-group {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.2rem;
  font-weight: var(--fw-black);
  letter-spacing: 0.15em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--color-carbon-profundo);
}

.brand-subtitle {
  font-size: 0.52rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.35em;
  color: var(--color-purpura-arquitectonico);
  text-transform: uppercase;
  margin-top: 2px;
}

/* Desktop Nav Links (Row 2 Layout) */
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  width: 100%;
  border-top: 1px solid rgba(43, 18, 76, 0.08);
  padding-top: 0.6rem;
  flex-wrap: wrap;
}

.nav-link {
  font-size: 0.78rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.4rem 0.5rem;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-purpura-arquitectonico);
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-carbon-profundo);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-carbon-profundo);
  border: 1px solid var(--color-purpura-arquitectonico);
  transition: all var(--transition-fast);
}

.header-cta:hover {
  background-color: var(--color-purpura-arquitectonico);
  color: #FFFFFF;
}

/* Mobile Toggle Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 1010;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.burger-icon {
  width: 26px;
  height: 14px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-carbon-profundo);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-menu-btn.is-active .burger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.is-active .burger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.is-active .burger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Fullscreen Menu Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--color-bg-primary);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 8vw;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-nav-drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.mobile-nav-link {
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  font-weight: var(--fw-black);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-purpura-arquitectonico);
  transform: translateX(10px);
}

.mobile-nav-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}


/* --------------------------------------------------------------------------
   2. FOOTER (Luminous & Sophisticated)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #F2E3DA;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-md);
  color: var(--color-carbon-profundo);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: var(--space-xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  max-width: 32ch;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-purpura-arquitectonico);
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-purpura-arquitectonico);
}

.footer-contact-item {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(43, 18, 76, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}


/* --------------------------------------------------------------------------
   3. EDITORIAL PROJECT CARDS
   -------------------------------------------------------------------------- */
.project-card {
  position: relative;
  display: block;
  overflow: hidden;
  background-color: var(--color-bg-surface);
  color: var(--color-carbon-profundo);
  text-decoration: none;
  border: 1px solid var(--color-border);
}

.project-media-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.project-media-wrapper.ratio-wide {
  aspect-ratio: 16/10;
}

.project-media-wrapper.ratio-square {
  aspect-ratio: 1/1;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.project-card:hover .project-img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(25, 0, 25, 0) 35%, rgba(25, 0, 25, 0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  color: #FFFFFF;
}

.project-category {
  font-size: 0.7rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-rosa-empolvado);
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.6rem;
  font-weight: var(--fw-bold);
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: #FFFFFF;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
}


/* --------------------------------------------------------------------------
   4. LIGHTBOX / MODAL
   -------------------------------------------------------------------------- */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(25, 0, 25, 0.92);
  backdrop-filter: blur(15px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.lightbox-modal.is-active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
}

.lightbox-img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: #FFFFFF;
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   5. SKELETON PRE-LOADER SYSTEM
   -------------------------------------------------------------------------- */
#site-preloader {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg-luminoso);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#site-preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-brand-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.3em;
  color: var(--color-purpura-arquitectonico);
}

.preloader-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(43, 18, 76, 0.1);
  border-top-color: var(--color-purpura-arquitectonico);
  border-radius: 50%;
  animation: preloader-spin 0.8s linear infinite;
}

@keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Skeleton Loading Animation */
.skeleton {
  background: linear-gradient(90deg,
      rgba(43, 18, 76, 0.06) 25%,
      rgba(43, 18, 76, 0.14) 37%,
      rgba(43, 18, 76, 0.06) 63%);
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.4s ease infinite;
  border-radius: 2px;
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0 50%;
  }
}

.skeleton-text {
  height: 1em;
  width: 100%;
  margin-bottom: 0.5rem;
}

.skeleton-title {
  height: 1.5em;
  width: 70%;
  margin-bottom: 0.75rem;
}

.skeleton-image {
  width: 100%;
  height: 100%;
  min-height: 200px;
}