/* ==========================================================================
   1. RESET & BASE (MOBILE-FIRST ARCHITECTURE)
   ========================================================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #050505;
  --bg-elevated: #111111;
  --bg-card: rgba(255, 255, 255, 0.04);
  --text-primary: #ffffff;
  --text-secondary: #cfcfcf;
  --text-muted: #888888;
  --accent-whatsapp: #25D366;
  --accent-gold: #e5c158;
  --border-subtle: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.35);
  --z-canvas: 1;
  --z-ui: 20;
  --z-footer: 30;
  --z-loader: 100;
  --z-detail: 500;
  --z-modal: 1000;
  --z-lightbox: 1500;
  --z-toast: 2000;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  width: 100dvw;
  height: 100dvh;
  overscroll-behavior: none;
}

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

#app {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* ==========================================================================
   2. CANVAS & INTERACTIVE 3D STAGE
   ========================================================================== */
#canvas-container {
  width: 100%;
  height: 100%;
  position: fixed;
  inset: 0;
  z-index: var(--z-canvas);
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: none;
}

/* ==========================================================================
   3. UI LAYER, HEADER & TOAST (MOBILE-FIRST)
   ========================================================================== */
.ui-layer {
  position: fixed;
  inset: 0;
  z-index: var(--z-ui);
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.header {
  position: relative;
  width: 100%;
  padding: clamp(0.85rem, 2.2vw, 1.85rem) clamp(0.9rem, 3.5vw, 3.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  flex-wrap: wrap;
  pointer-events: auto;
  background: linear-gradient(to bottom, rgba(5, 5, 5, 0.85) 0%, rgba(5, 5, 5, 0) 100%);
  z-index: var(--z-ui);
}

.site-logo {
  height: clamp(32px, 4.5vw, 48px);
  max-width: clamp(105px, 26vw, 180px);
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.header .nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Touch-friendly interactive buttons (min 44px height) */
.back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 42px;
  background: rgba(5, 5, 5, 0.62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: clamp(0.7rem, 1.6vw, 0.84rem);
  font-weight: 500;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.back-btn:hover,
.back-btn:focus-visible {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
  outline: none;
}

.back-btn:active {
  transform: scale(0.97);
}

.back-btn.active-filter-btn {
  background: rgba(229, 193, 88, 0.16);
  border-color: var(--accent-gold);
  color: #fff;
}

.btn-accent-gold {
  border-color: rgba(229, 193, 88, 0.65);
  color: #f8e3a1;
  background: rgba(229, 193, 88, 0.1);
}

.btn-accent-gold:hover,
.btn-accent-gold:focus-visible {
  background: var(--accent-gold);
  color: #050505;
  border-color: var(--accent-gold);
}

.btn-compare-pill {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.12);
}

/* Toast Notification */
.ui-toast {
  position: fixed;
  top: 5.2rem;
  left: 50%;
  transform: translateX(-50%) translateY(-14px);
  background: rgba(18, 18, 18, 0.95);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  z-index: var(--z-toast);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  white-space: nowrap;
}

.ui-toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Gesture Onboarding Hint */
.gesture-hint {
  position: fixed;
  bottom: clamp(5.2rem, 11vh, 6.8rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-ui);
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(10, 10, 10, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.85);
  padding: 0.48rem 1rem;
  border-radius: 999px;
  font-size: clamp(0.7rem, 1.6vw, 0.8rem);
  letter-spacing: 0.03em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
  max-width: 92vw;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gesture-icon {
  display: inline-block;
  font-weight: 700;
  color: var(--accent-gold);
  animation: pulseSlide 2.2s ease-in-out infinite;
}

@keyframes pulseSlide {
  0%, 100% { transform: translateX(-3px); }
  50% { transform: translateX(3px); }
}

/* ==========================================================================
   4. MENU / SEARCH / SIMULATOR / COMPARE OVERLAYS
   ========================================================================== */
.admin-overlay {
  position: fixed;
  inset: 0;
  width: 100dvw;
  height: 100dvh;
  padding: clamp(0.85rem, 3vw, 2.5rem);
  background-color: rgba(0, 0, 0, 0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: var(--z-modal);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.admin-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.admin-modal {
  position: relative;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 1.15rem;
  width: min(100%, 480px);
  max-height: min(88dvh, 780px);
  display: flex;
  flex-direction: column;
  padding: clamp(1.2rem, 3vw, 2rem);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.75);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
  margin: auto;
}

.simulator-modal {
  width: min(100%, 580px);
}

.compare-modal {
  width: min(100%, 920px);
}

.admin-overlay.active .admin-modal {
  transform: translateY(0) scale(1);
}

.modal-eyebrow {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.25rem;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 0.95rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.admin-header h2 {
  font-weight: 400;
  letter-spacing: -0.02em;
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  margin: 0;
  text-align: left;
}

.close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.85;
  transition: opacity 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
  touch-action: manipulation;
}

.close-btn:hover,
.close-btn:focus-visible {
  opacity: 1;
  background: rgba(255, 255, 255, 0.16);
  outline: none;
}

#search-options-container {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 1rem;
  padding-right: 0.25rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  max-height: calc(88dvh - 6.5rem);
}

#search-options-container::-webkit-scrollbar,
.simulator-body::-webkit-scrollbar,
.compare-grid-container::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

#search-options-container::-webkit-scrollbar-track,
.simulator-body::-webkit-scrollbar-track,
.compare-grid-container::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
}

#search-options-container::-webkit-scrollbar-thumb,
.simulator-body::-webkit-scrollbar-thumb,
.compare-grid-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 999px;
}

.menu-section-label {
  margin: 0.65rem 0 0.2rem 0;
  font-size: 0.73rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: left;
  font-weight: 600;
}

.filter-chips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.5rem;
}

.submit-btn {
  width: 100%;
  min-height: 44px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border: 1px solid var(--text-primary);
  padding: 0.72rem 0.9rem;
  font-size: clamp(0.8rem, 1.7vw, 0.9rem);
  font-family: inherit;
  font-weight: 500;
  border-radius: 0.6rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.12s ease;
  touch-action: manipulation;
  flex-shrink: 0;
}

.submit-btn:hover,
.submit-btn:focus-visible {
  background-color: rgba(255, 255, 255, 0.92) !important;
  color: var(--bg-primary) !important;
  outline: none;
}

.submit-btn:active {
  transform: scale(0.98);
}

.custom-lot-banner {
  margin-top: 0.85rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background: rgba(229, 193, 88, 0.08);
  border: 1px solid rgba(229, 193, 88, 0.3);
  text-align: left;
}

.custom-lot-banner strong {
  display: block;
  font-size: 0.9rem;
  color: #f8e3a1;
  margin-bottom: 0.25rem;
}

.custom-lot-banner p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 0.75rem;
}

.custom-lot-banner a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--accent-whatsapp);
  color: #050505;
  font-weight: 700;
  font-size: 0.8rem;
  border-radius: 0.5rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.custom-lot-banner a svg {
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  flex-shrink: 0;
}

/* ==========================================================================
   4B. INTERACTIVE OBRA SIMULATOR STYLES (P4)
   ========================================================================== */
.simulator-progress {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  margin-top: 0.9rem;
  overflow: hidden;
  flex-shrink: 0;
}

.simulator-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-whatsapp));
  transition: width 0.35s ease;
}

.simulator-body {
  margin-top: 1.1rem;
  overflow-y: auto;
  padding-right: 0.25rem;
  max-height: calc(88dvh - 8rem);
}

.sim-step {
  display: none;
  flex-direction: column;
}

.sim-step.active {
  display: flex;
}

.sim-step-counter {
  font-size: 0.76rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}

.sim-question {
  font-size: clamp(1.08rem, 2.2vw, 1.32rem);
  font-weight: 500;
  margin-bottom: 1rem;
  line-height: 1.35;
}

.sim-options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sim-option-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.25rem;
  padding: 0.95rem 1.1rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.sim-option-card:hover,
.sim-option-card:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-gold);
  outline: none;
}

.sim-option-card strong {
  font-size: 0.95rem;
  font-weight: 600;
}

.sim-option-card span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.sim-slider-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 1.1rem;
  border-radius: 0.75rem;
}

.sim-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.sim-slider-header strong {
  font-size: 1.25rem;
  color: var(--accent-gold);
}

.sim-range-input {
  width: 100%;
  accent-color: var(--accent-gold);
  cursor: pointer;
}

.sim-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.45rem;
}

.sim-footer-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.15rem;
  gap: 0.75rem;
}

.sim-prev-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-secondary);
  padding: 0.55rem 0.95rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.sim-prev-btn:hover {
  color: #fff;
  border-color: #fff;
}

.sim-summary-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0.75rem;
  padding: 0.95rem 1.1rem;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.sim-recommendations-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.4rem;
}

.sim-rec-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.6rem 0.8rem;
  border-radius: 0.6rem;
  cursor: pointer;
  text-align: left;
  color: #fff;
  font-family: inherit;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.sim-rec-item:hover {
  border-color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.1);
}

.sim-rec-item img {
  width: 64px;
  height: 48px;
  object-fit: cover;
  border-radius: 0.35rem;
  flex-shrink: 0;
}

.sim-rec-info strong {
  display: block;
  font-size: 0.9rem;
}

.sim-rec-info span {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   4C. SIDE-BY-SIDE FAVORITES / COMPARATOR MODAL
   ========================================================================== */
.compare-grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-top: 1.1rem;
  overflow-y: auto;
  max-height: calc(88dvh - 10.5rem);
  padding-right: 0.25rem;
}

.compare-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 0.85rem;
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.compare-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 0.55rem;
}

.compare-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.compare-specs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.65rem;
}

.compare-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.compare-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.15rem;
  padding-top: 0.95rem;
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   5. DETAIL PAGE OVERLAY & LIGHTBOX (MOBILE-FIRST)
   ========================================================================== */
#detail-overlay {
  position: fixed;
  inset: 0;
  width: 100dvw;
  height: 100dvh;
  background-color: var(--bg-primary);
  z-index: var(--z-detail);
  display: none;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  overflow-y: auto;
  overflow-x: hidden;
  pointer-events: none;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

#detail-overlay.active-detail {
  display: flex;
  pointer-events: auto !important;
  z-index: var(--z-detail) !important;
}

.detail-header {
  padding: clamp(0.6rem, 1.8vw, 1.35rem) clamp(0.85rem, 4vw, 4rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  position: sticky;
  top: 0;
  background: linear-gradient(to bottom, rgba(5, 5, 5, 0.94) 0%, rgba(5, 5, 5, 0.65) 75%, rgba(5, 5, 5, 0) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 21;
}

.detail-back-btn {
  min-height: 36px;
  padding: 0.4rem 0.85rem;
  font-size: clamp(0.68rem, 1.4vw, 0.8rem);
}

.detail-header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.detail-icon-btn {
  width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  border-radius: 50%;
  flex-shrink: 0;
}

.detail-action-pill.is-favorited {
  background: rgba(229, 193, 88, 0.2);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.detail-action-pill.is-favorited svg {
  fill: currentColor;
}

.detail-logo-hide-sm {
  display: none;
}

.detail-content {
  padding: clamp(1.25rem, 4vw, 4rem);
  padding-bottom: calc(clamp(3rem, 6vw, 5rem) + 70px);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.detail-title {
  font-size: clamp(1.75rem, 4.5vw, 3.75rem);
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 0.55rem;
  letter-spacing: -0.02em;
  word-break: break-word;
}

.detail-subtitle {
  font-size: clamp(0.92rem, 1.8vw, 1.2rem);
  color: var(--text-muted);
  margin-bottom: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 300;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3.75rem);
}

.detail-text {
  font-size: clamp(0.95rem, 1.5vw, 1.08rem);
  line-height: 1.75;
  color: var(--text-secondary);
  font-weight: 300;
}

#detail-desc {
  text-align: justify;
  text-justify: inter-word;
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.8;
  color: #dfdfdf;
}

.specs-badges-container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin-bottom: 1.5rem;
}

.spec-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  padding: 0.55rem 0.75rem;
  border-radius: 0.75rem;
  font-size: clamp(0.78rem, 1.4vw, 0.92rem);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.4rem;
}

.specs-badges-container .spec-badge:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.detail-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.project-whatsapp-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  min-height: 50px;
  background: var(--accent-whatsapp);
  color: #050505;
  font-weight: 700;
  font-size: clamp(0.86rem, 1.5vw, 0.95rem);
  text-decoration: none;
  padding: 0.95rem 1.5rem;
  border-radius: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
  touch-action: manipulation;
}

.project-whatsapp-cta svg {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  flex-shrink: 0;
}

.project-whatsapp-cta:hover {
  transform: translateY(-2px);
  opacity: 0.93;
}

.project-adapt-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--text-primary);
  font-weight: 500;
  font-size: clamp(0.82rem, 1.4vw, 0.9rem);
  text-decoration: none;
  padding: 0.85rem 1.35rem;
  border-radius: 0.65rem;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.project-adapt-cta:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
}

.video-embed-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: 2rem;
  display: none;
}

.video-embed-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.detail-gallery-section {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.detail-section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 0.65rem;
}

.detail-section-header h2 {
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.detail-section-header span {
  font-size: 0.8rem;
  color: var(--accent-gold);
}

#detail-facades-container,
#detail-plans-container {
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3.5vw, 3rem);
}

.zoomable-img-wrapper {
  position: relative;
  cursor: zoom-in;
  overflow: hidden;
  border-radius: clamp(0.65rem, 1.5vw, 1rem);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: #0b0b0b;
}

.zoomable-img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.zoomable-img-wrapper:hover img {
  transform: scale(1.015);
}

.zoom-badge-hint {
  position: absolute;
  bottom: 0.85rem;
  right: 0.85rem;
  background: rgba(5, 5, 5, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  backdrop-filter: blur(6px);
  pointer-events: none;
}

/* Bottom Conversion Card after Floor Plans */
.detail-bottom-cta-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(229, 193, 88, 0.08) 100%);
  border: 1px solid rgba(229, 193, 88, 0.32);
  border-radius: 1.1rem;
  padding: clamp(1.35rem, 3.5vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1rem;
}

.detail-bottom-cta-text h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.detail-bottom-cta-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.detail-bottom-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

/* Sequential Project Navigation */
.detail-project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.detail-nav-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 0.8rem;
  padding: 1rem 1.2rem;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.detail-nav-card.align-right {
  text-align: right;
  align-items: flex-end;
}

.detail-nav-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

.detail-nav-card .nav-dir {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.detail-nav-card strong {
  font-size: clamp(0.88rem, 1.8vw, 1.05rem);
  font-weight: 500;
}

/* Sticky Mobile Bar in Detail Overlay */
.detail-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.94);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  z-index: 30;
  backdrop-filter: blur(12px);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.detail-sticky-bar.visible {
  transform: translateY(0);
}

.sticky-bar-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.sticky-bar-info strong {
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sticky-bar-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sticky-whatsapp-btn {
  background: var(--accent-whatsapp);
  color: #050505;
  font-weight: 700;
  font-size: 0.8rem;
  text-decoration: none;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Fullscreen Lightbox Overlay */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  width: 100dvw;
  height: 100dvh;
  background: rgba(3, 3, 3, 0.96);
  z-index: var(--z-lightbox);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox-topbar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 5;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
}

.lightbox-caption {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.lightbox-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.lightbox-stage {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  touch-action: none;
}

.lightbox-stage img {
  max-width: 92vw;
  max-height: 84dvh;
  object-fit: contain;
  border-radius: 0.4rem;
  transition: transform 0.2s ease-out;
  cursor: grab;
}

.lightbox-stage img.zoomed {
  cursor: move;
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.lightbox-nav-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox-nav-btn.prev {
  left: 1rem;
}

.lightbox-nav-btn.next {
  right: 1rem;
}

/* ==========================================================================
   6. LOADER & SOCIAL FOOTER
   ========================================================================== */
.loader {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-primary);
  font-family: inherit;
  font-size: clamp(0.85rem, 2vw, 1rem);
  z-index: var(--z-loader);
  pointer-events: none;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(5, 5, 5, 0.75);
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

.social-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 0.45rem 1rem calc(0.35rem + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  pointer-events: none;
  z-index: var(--z-footer);
  background: linear-gradient(to top, rgba(5, 5, 5, 0.85) 0%, rgba(5, 5, 5, 0) 100%);
}

.social-icons {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.social-footer a {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  padding: 4px;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s ease, transform 0.25s ease;
  touch-action: manipulation;
}

.social-footer a:hover {
  color: var(--text-primary);
  transform: scale(1.12);
}

.social-footer svg {
  width: 22px;
  height: 22px;
}

.footer-address {
  font-size: clamp(0.7rem, 1.3vw, 0.8rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.2;
}

/* ==========================================================================
   7. FORM ELEMENTS (ADMIN COMPATIBILITY)
   ========================================================================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #aaa;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input[type="text"],
.form-group textarea,
.form-group input[type="file"] {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  padding: 0.85rem 1rem;
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.25s ease;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--text-primary);
}

/* Prevent image saving and accidental dragging */
img,
canvas {
  user-select: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
}

/* ==========================================================================
   8. MEDIA QUERIES (MOBILE, TABLET, DESKTOP & ULTRA-WIDE)
   ========================================================================== */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.75rem 1rem 0.35rem 1rem;
    gap: 0.75rem;
  }

  .site-logo {
    margin: 0 auto;
    display: block;
    height: clamp(34px, 8.5vw, 44px);
    max-width: 170px;
  }

  .header .nav {
    margin-left: 0;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 0.45rem;
  }

  .header .nav .back-btn {
    padding: 0.45rem 0.8rem;
    font-size: 0.72rem;
    min-height: 38px;
    letter-spacing: 0.03em;
  }
}

@media (min-width: 768px) {
  .detail-logo-hide-sm {
    display: block;
  }

  .specs-badges-container {
    display: flex;
    flex-wrap: wrap;
  }

  .spec-badge {
    border-radius: 2rem;
    padding: 0.45rem 0.9rem;
  }

  .project-whatsapp-cta,
  .project-adapt-cta {
    width: auto;
    padding: 0.95rem 1.7rem;
  }

  .detail-sticky-bar {
    display: none;
  }

  .detail-content {
    padding-bottom: clamp(3rem, 6vw, 5rem);
  }
}

@media (min-width: 1440px) {
  .detail-content {
    max-width: 1360px;
  }
}

@media (min-width: 2200px) {
  html {
    font-size: 18px;
  }

  .detail-content {
    max-width: 1600px;
  }
}