/* ── Prefab Houses — page-specific styles ────────────────────
   All base variables and components come from styles.css.
   This file only adds what styles.css doesn't cover.         */

/* ── HERO ─────────────────────────────────────────────────── */
.prefab-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--text);
}
.prefab-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('images/prefab/hero1.png');
  background-size: cover;
  background-position: center 42%;
  background-repeat: no-repeat;
  animation: prefabKenBurns 26s ease-in-out infinite;
  transform-origin: center center;
}
@keyframes prefabKenBurns {
  0%   { transform: scale(1);    background-position: center 42%; }
  50%  { transform: scale(1.08); background-position: center 48%; }
  100% { transform: scale(1);    background-position: center 42%; }
}
@media (prefers-reduced-motion: reduce) {
  .prefab-hero-bg { animation: none; }
}
.prefab-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(13,21,32,0.75) 0%, transparent 30%),
    linear-gradient(105deg, rgba(13,21,32,0.93) 0%, rgba(13,21,32,0.75) 30%, rgba(13,21,32,0.38) 60%, rgba(13,21,32,0.18) 100%);
}

/* ── ENGINEERING OVERLAY ───────────────────────────────────── */
.prefab-eng-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.17;
}
.eng-svg { width: 100%; height: 100%; }
.eng-anim-a { animation: engPulse 12s ease-in-out infinite; }
.eng-anim-b { animation: engPulse 12s ease-in-out 4s infinite; }
.eng-anim-c { animation: engPulse 12s ease-in-out 8s infinite; }
@keyframes engPulse {
  0%, 100% { opacity: 0; }
  18%, 82% { opacity: 1; }
}

.prefab-hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: calc(var(--nav-h) + 48px) 80px 80px;
}
.prefab-hero-content .hero-eyebrow {
  color: rgba(255,255,255,0.72);
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* ── HERO H1 ───────────────────────────────────────────────── */
.prefab-hero-h1 {
  font-family: 'Bebas Neue', display;
  font-size: clamp(28px, 2.8vw, 44px);
  line-height: 0.95;
  color: #fff;
  letter-spacing: 1px;
  margin: 14px 0 22px;
  text-shadow: 0 4px 32px rgba(0,0,0,0.45);
}
.prefab-h1-gold {
  color: var(--gold);
  display: block;
}

/* ── TRUST BADGES ──────────────────────────────────────────── */
.prefab-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 18px 0 28px;
}
.prefab-trust-badges span {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.58);
}
.prefab-hero .hero-stat-label {
  color: rgba(255,255,255,0.9);
  text-shadow: 0 1px 8px rgba(0,0,0,0.8), 0 0 20px rgba(0,0,0,0.6);
}
.prefab-hero .hero-stat-num {
  text-shadow: 0 2px 12px rgba(0,0,0,0.7);
}

/* ── CONFIGURATOR ─────────────────────────────────────────── */
.configurator-section {
  background: var(--dark2);
  padding: 80px 80px;
}
.configurator-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  border: 1px solid var(--border);
  overflow: hidden;
}
.config-controls {
  background: var(--text);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  border-right: 1px solid var(--border);
}
.config-group-label {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.config-option-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.config-option-btn {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 7px 14px;
  background: transparent;
  border: 1px solid rgba(184,134,11,0.22);
  color: rgba(244,246,249,0.55);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.config-option-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.config-option-btn.active {
  background: rgba(184,134,11,0.15);
  border-color: var(--gold);
  color: var(--gold-light);
}
.config-option-btn.toggle-active {
  background: rgba(184,134,11,0.2);
  border-color: var(--gold-light);
  color: var(--gold-light);
}

/* Right: preview */
.config-preview {
  background: var(--dark);
  display: flex;
  flex-direction: column;
}
.config-view-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--dark2);
}
.config-view-tab {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
  margin-bottom: -1px;
}
.config-view-tab:hover { color: var(--text); }
.config-view-tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* Photo panel */
.config-photo-wrap {
  position: relative;
  height: 340px;
  overflow: hidden;
  background: var(--dark3);
}
.config-photo-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.config-photo-wrap img.visible { opacity: 1; }
.config-floorplan-wrap {
  height: 150px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.config-floorplan-wrap img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.config-floorplan-wrap img.visible { opacity: 1; }

/* BIM panel */
.config-bim-wrap {
  position: relative;
  height: 490px;
  background: #1A2535;
  display: none;
}
.config-bim-wrap.active { display: block; }
.config-bim-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}
.config-bim-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  pointer-events: none;
  z-index: 1;
}
.config-bim-spinner-ring {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(184,134,11,0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: prefab-spin 0.8s linear infinite;
}
@keyframes prefab-spin { to { transform: rotate(360deg); } }
.config-bim-spinner-label {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--gold);
  text-transform: uppercase;
}
.config-bim-controls {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(13,21,32,0.7);
  border-top: 1px solid var(--border);
}
.config-bim-btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid rgba(184,134,11,0.3);
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.config-bim-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Specs row */
.config-specs-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  background: var(--dark2);
}
.config-spec-item {
  padding: 14px 16px;
  border-right: 1px solid var(--border);
  text-align: center;
}
.config-spec-item:last-child { border-right: none; }
.config-spec-label {
  font-family: 'Share Tech Mono', monospace;
  font-size: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.config-spec-value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.config-cta-row {
  display: flex;
  justify-content: flex-end;
  padding: 14px 16px;
  background: var(--dark2);
  border-top: 1px solid var(--border);
}

/* ── PROCESS ──────────────────────────────────────────────── */
.prefab-process { background: var(--dark); }
.prefab-process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.prefab-step-thumb {
  width: 100%;
  height: 88px;
  object-fit: cover;
  border: 1px solid var(--border);
  opacity: 0.7;
  transition: opacity var(--t-base) var(--ease);
  margin-bottom: 4px;
}
.prefab-process-step:hover .prefab-step-thumb { opacity: 1; }
.step-num {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--gold);
  opacity: 0.7;
}
.step-subtitle {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.4;
  margin-bottom: 4px;
}
.step-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-self: flex-start;
  width: 100%;
}
.step-bullets li {
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}
.step-bullets li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--gold);
  opacity: 0.7;
}

/* ── HOUSES ───────────────────────────────────────────────── */
.prefab-houses {
  background: var(--dark);
  padding: 80px 80px 0;
}
.prefab-houses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 48px auto 0;
}
.prefab-project-card {
  position: relative;
  height: 360px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--t-base) var(--ease);
}
.prefab-project-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.14);
}
.prefab-card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow) var(--ease);
}
.prefab-project-card:hover .prefab-card-img { transform: scale(1.04); }
.prefab-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,21,32,0.6) 0%, transparent 45%);
}
.prefab-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
}
.prefab-card-name {
  font-family: 'Bebas Neue', display;
  font-size: 26px;
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.prefab-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.prefab-card-tag {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(184,134,11,0.12);
  border: 1px solid rgba(184,134,11,0.3);
  padding: 3px 8px;
}

/* ── BIM SHOWCASE ─────────────────────────────────────────── */
.prefab-bim-showcase {
  background: var(--dark2);
  padding: 80px 80px 0;
  text-align: center;
}
.prefab-bim-showcase-viewer {
  margin-top: 40px;
  border: 1px solid var(--border);
  overflow: hidden;
  height: 560px;
}
.bim-mv-poster,
.bim-mv-error {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: #0D1520;
  color: rgba(255,255,255,0.4);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 1.5px;
}
.prefab-bim-panel {
  position: relative;
  height: 560px;
  background: #1A2535;
}
.prefab-bim-panel canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}
@media (max-width: 768px) {
  .prefab-bim-showcase { padding: 48px 20px 0; }
  .prefab-bim-panel { height: 360px; }
}

/* ── HOUSE MODAL ──────────────────────────────────────────── */
.ph-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  align-items: center;
  justify-content: center;
}
.ph-modal.is-open { display: flex; }
.ph-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13,21,32,0.88);
  backdrop-filter: blur(4px);
  cursor: pointer;
}
.ph-modal-box {
  position: relative;
  z-index: 1;
  width: min(960px, 94vw);
  max-height: 90vh;
  background: var(--dark2);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  animation: phModalIn 0.22s var(--ease) forwards;
}
@keyframes phModalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}
.ph-modal-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ph-modal-name {
  font-family: 'Bebas Neue', display;
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--text-inv);
  flex: 1;
}
.ph-modal-tabs {
  display: flex;
  gap: 4px;
}
.ph-modal-tab {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 14px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.ph-modal-tab.active,
.ph-modal-tab:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.ph-modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--t-fast) var(--ease);
  flex-shrink: 0;
}
.ph-modal-close:hover { border-color: var(--gold); color: var(--gold); }
.ph-modal-body {
  flex: 1;
  overflow: hidden;
  min-height: 0;
  background: #0D1520;
}
.ph-tab-panel {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ph-tab-panel.ph-tab-hidden { display: none; }
.ph-tab-panel img {
  max-width: 100%;
  max-height: 68vh;
  object-fit: contain;
  display: block;
}
.ph-modal-footer {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.ph-modal-footer .prefab-card-tag {
  font-size: 9px;
}

/* card hint */
.prefab-card-hint {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease);
}
.prefab-project-card { cursor: pointer; }
.prefab-project-card:hover .prefab-card-hint { opacity: 1; }

/* ── CUSTOM CARD ──────────────────────────────────────────── */
.prefab-card-custom {
  outline: 1px solid rgba(184,134,11,0.5);
  outline-offset: -1px;
}
.prefab-card-custom::after {
  content: 'CUSTOM BUILD';
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 8px;
  letter-spacing: 2px;
  color: var(--gold);
  border: 1px solid rgba(184,134,11,0.5);
  padding: 3px 8px;
  z-index: 3;
  background: rgba(13,21,32,0.6);
}
.prefab-card-custom-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.5px;
  margin: 2px 0 8px;
}

/* ── CTA ──────────────────────────────────────────────────── */
.prefab-cta {
  background: var(--text);
  padding: 72px 80px;
  text-align: center;
  margin-top: 72px;
}
.prefab-cta-headline {
  font-family: 'Bebas Neue', display;
  font-size: clamp(36px, 5vw, 60px);
  color: #fff;
  letter-spacing: 3px;
  margin-bottom: 16px;
}
.prefab-cta-sub {
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px;
  color: rgba(244,246,249,0.7);
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.prefab-cta-email {
  display: block;
  margin-top: 16px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gold);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
.prefab-cta-email:hover { color: var(--gold-light); }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .configurator-grid { grid-template-columns: 1fr; }
  .config-controls { border-right: none; border-bottom: 1px solid var(--border); }
  .prefab-hero-content { padding: calc(var(--nav-h) + 32px) 40px 60px; }
  .configurator-section { padding: 60px 40px; }
  .prefab-houses { padding: 60px 40px 0; }
}
@media (max-width: 768px) {
  .prefab-hero-bg {
    background-size: 250% auto;
    background-position: 40% 30%;
    animation: none;
    transform: none;
  }
  .prefab-hero-content { padding: calc(var(--nav-h) + 20px) 20px 44px; max-width: 100%; }
  .prefab-hero-h1 { font-size: clamp(44px, 11vw, 64px); margin: 10px 0 16px; }
  .prefab-hero-content .section-label { flex-wrap: wrap; gap: 4px; }
  .prefab-hero-content .hero-eyebrow { white-space: normal; }
  .prefab-trust-badges { gap: 4px 16px; margin: 14px 0 20px; }
  .prefab-trust-badges span { font-size: 8px; }
  .configurator-section { padding: 48px 20px; }
  .prefab-houses { padding: 48px 20px 0; }
  .prefab-cta { padding: 48px 20px; }
  .prefab-houses-grid { grid-template-columns: 1fr; }
  .config-specs-row { grid-template-columns: repeat(2, 1fr); }
  .config-spec-item:nth-child(2) { border-right: none; }
  .config-bim-wrap { height: 340px; }
  .config-photo-wrap { height: 260px; }
  #tab3d { display: none !important; }
  #bimPanel { display: none !important; }
  #bimControls { display: none !important; }
  .config-view-tabs { display: none !important; }
  .prefab-bim-showcase { display: none !important; }
}