/* Style definition for Luxury 3D Homes PHP Version */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-color: #fcfcfd;
  --text-color: #1d1d1f;
  --text-muted: #86868b;
  --accent-color: #0071e3;
  --accent-hover: #0077ed;
  --border-color: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.4);
  --card-bg: rgba(255, 255, 255, 0.7);
  --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.03);
  --radius-lg: 24px;
  --radius-md: 16px;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-color: #0a0a0c;
  --text-color: #f5f5f7;
  --text-muted: #86868b;
  --accent-color: #2997ff;
  --accent-hover: #47a6ff;
  --border-color: rgba(255, 255, 255, 0.06);
  --glass-bg: rgba(18, 18, 20, 0.85);
  --glass-border: rgba(255, 255, 255, 0.04);
  --card-bg: rgba(22, 22, 24, 0.7);
  --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

/* Base resets */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* Shared structural classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Glass Navbar */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-b: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.nav-wrapper {
  display: flex;
  height: 68px;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-color);
}

.logo-box {
  background-color: var(--accent-color);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  height: 36px;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.5px;
}

.logo-text span {
  color: var(--accent-color);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 50px;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-color);
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .nav-link:hover, [data-theme="dark"] .nav-link.active {
  background: rgba(255, 255, 255, 0.05);
}

/* Quick theme toggle & CTA buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle-btn {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 20px;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.theme-toggle-btn:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.cta-btn {
  background-color: var(--accent-color);
  color: white;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 50px;
  transition: background-color 0.2s;
  border: none;
  cursor: pointer;
}

.cta-btn:hover {
  background-color: var(--accent-hover);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 80px 0 40px;
  position: relative;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(0, 113, 227, 0.08);
  color: var(--accent-color);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 24px;
}

[data-theme="dark"] .hero-tag {
  background-color: rgba(41, 151, 255, 0.15);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 16px;
}

.hero h1 span {
  color: var(--accent-color);
}

.hero p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto;
  font-weight: 300;
}

/* Glass Search & Filter Form */
.filter-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  margin-bottom: 40px;
  transition: box-shadow 0.3s;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.filter-group {
  display: flex;
  flex-col: column;
  flex-direction: column;
  gap: 6px;
}

.filter-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  padding-left: 4px;
}

.filter-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background-color: rgba(255, 255, 255, 0.5);
  color: var(--text-color);
  font-size: 13px;
  font-weight: 500;
  outline: none;
  transition: all 0.2s;
}

[data-theme="dark"] .filter-input {
  background-color: rgba(0, 0, 0, 0.2);
}

.filter-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.filter-actions {
  grid-column: span 4;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 10px;
}

.clear-filter-btn {
  background: none;
  border: none;
  color: var(--accent-color);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 8px;
  transition: background-color 0.2s;
}

.clear-filter-btn:hover {
  background-color: rgba(0, 113, 227, 0.05);
}

/* Apartments Grid & Cards */
.apartments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
  margin-bottom: 80px;
}

.apt-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.apt-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .apt-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.apt-thumb-wrapper {
  position: relative;
  aspect-ratio: 1.7;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.05);
}

.apt-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.apt-card:hover .apt-thumb {
  transform: scale(1.08);
}

.fav-card-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.85);
  border: none;
  border-radius: 50%;
  height: 36px;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #333;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  backdrop-filter: blur(10px);
  transition: transform 0.2s, background-color 0.2s, color 0.2s;
}

[data-theme="dark"] .fav-card-btn {
  background: rgba(0,0,0,0.6);
  color: #ccc;
}

.fav-card-btn:hover {
  color: #e11d48;
  transform: scale(1.05);
}

.fav-card-btn.active {
  background-color: #e11d48;
  color: white;
}

.apt-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.apt-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.apt-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.apt-tag-3d {
  background-color: rgba(0, 113, 227, 0.06);
  color: var(--accent-color);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}

/* Small Specs list inside card */
.apt-specs-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  margin: 12px 0 20px;
  text-align: center;
}

.apt-spec-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.apt-spec-item:not(:last-child) {
  border-right: 1px solid var(--border-color);
}

.apt-spec-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.apt-spec-val {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-color);
}

.apt-card-cta {
  width: 100%;
  background-color: var(--accent-color);
  color: white;
  border: none;
  padding: 12px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
  display: block;
  text-align: center;
  text-decoration: none;
  margin-top: auto;
}

.apt-card-cta:hover {
  background-color: var(--accent-hover);
}

/* Footer Section */
.footer {
  background-color: rgba(245, 245, 247, 0.8);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px;
}

[data-theme="dark"] .footer {
  background-color: rgba(12, 12, 14, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 30px;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col ul li a:hover {
  color: var(--text-color);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* View 3D Page Fullscreen Layout */
.viewer-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background-color: var(--bg-color);
}

.viewer-sidebar {
  width: 360px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-color);
  z-index: 10;
  transition: all 0.3s ease;
}

.viewer-sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.back-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--accent-color);
}

.viewer-sidebar-content {
  padding: 24px;
  overflow-y: auto;
  flex-grow: 1;
}

.viewer-sidebar-content h1 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: 12px 0;
}

.viewer-grid-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.viewer-spec-box {
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
}

[data-theme="dark"] .viewer-spec-box {
  background-color: rgba(255, 255, 255, 0.02);
}

.viewer-spec-box .label {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.viewer-spec-box .value {
  font-size: 14px;
  font-weight: 600;
  margin-top: 4px;
}

.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.viewer-action-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background-color 0.2s;
}

.viewer-action-btn:hover {
  background-color: rgba(0,0,0,0.03);
}

[data-theme="dark"] .viewer-action-btn:hover {
  background-color: rgba(255,255,255,0.05);
}

.viewer-main {
  flex-grow: 1;
  position: relative;
  height: 100%;
}

.viewer-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.fs-toggle-float {
  position: absolute;
  top: 16px;
  right: 16px;
  height: 40px;
  width: 40px;
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  color: var(--text-color);
  z-index: 100;
  transition: transform 0.2s;
}

.fs-toggle-float:hover {
  transform: scale(1.05);
}

/* Modal Styling */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 440px;
  width: 100%;
  position: relative;
  box-shadow: var(--card-shadow);
  transform: translateY(20px);
  transition: transform 0.3s;
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-muted);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .filter-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .filter-actions {
    grid-column: span 2;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu, .cta-btn {
    display: none;
  }
  .hero h1 {
    font-size: 32px;
  }
  .filter-grid {
    grid-template-columns: 1fr;
  }
  .filter-actions {
    grid-column: span 1;
  }
  .apartments-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .viewer-container {
    flex-direction: column-reverse;
  }
  .viewer-sidebar {
    width: 100%;
    height: 40vh;
  }
  .viewer-main {
    height: 60vh;
  }
}

/* Fullscreen state helper */
.viewer-sidebar.hidden-fs {
  width: 0 !important;
  height: 0 !important;
  overflow: hidden;
  border: none !important;
}
.viewer-main.full-fs {
  width: 100% !important;
  height: 100% !important;
}
.restore-sidebar-btn {
  position: absolute;
  top: 16px;
  right: 70px;
  height: 40px;
  padding: 0 16px;
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-color);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 100;
  cursor: pointer;
  border: 1px solid var(--border-color);
}
.qr-container {
  margin-top: 16px;
  padding: 16px;
  background-color: white;
  border-radius: 12px;
  display: inline-block;
  border: 1px solid #ddd;
}
.shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading-shimmer 1.5s infinite;
}
[data-theme="dark"] .shimmer {
  background: linear-gradient(90deg, #252528 25%, #303033 50%, #252528 75%);
}
@keyframes loading-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}