/* ==================== CSS Variables ==================== */
:root {
  /* Background Colors */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1424;
  --bg-tertiary: #151b30;

  /* Surface & Glass */
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --surface-glass: rgba(15, 20, 36, 0.7);

  /* Borders */
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-tertiary: rgba(255, 255, 255, 0.4);

  /* Accents */
  --accent-cyan: #00d9ff;
  --accent-purple: #7c3aed;
  --accent-pink: #f472b6;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #7c3aed 100%);
  --gradient-secondary: linear-gradient(135deg, #7c3aed 0%, #f472b6 100%);
  --gradient-text: linear-gradient(135deg, #00d9ff 0%, #7c3aed 50%, #f472b6 100%);

  /* Spacing */
  --section-padding: 120px 0;
  --container-max: 1200px;
  --container-pad: 0 24px;

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Transitions */
  --t-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --t-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-glow-cyan: 0 0 40px rgba(0, 217, 255, 0.2);
  --shadow-glow-purple: 0 0 40px rgba(124, 58, 237, 0.2);
  --shadow-card: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* ==================== Reset ==================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

/* ==================== Utilities ==================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-pad);
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ==================== Particle Canvas ==================== */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ==================== Buttons ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--t-normal);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 217, 255, 0.45);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* ==================== Navigation ==================== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--t-normal);
  padding: 20px 0;
}

#navbar.scrolled {
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav-menu {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--t-normal);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--t-normal);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==================== Hero ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
  padding: 80px 24px 40px;
  overflow: hidden;
}

.hero-orbs {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.4), transparent 70%);
  top: -100px;
  left: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.35), transparent 70%);
  bottom: -50px;
  right: -50px;
  animation-delay: -4s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.25), transparent 70%);
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--accent-cyan);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-family: 'Space Grotesk', 'PingFang SC', sans-serif;
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 1;
}

.scroll-mouse {
  width: 26px;
  height: 42px;
  border: 2px solid var(--text-tertiary);
  border-radius: 14px;
  margin: 0 auto 8px;
  position: relative;
}

.scroll-mouse span {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 2px;
  animation: scrollDot 1.5s ease infinite;
}

@keyframes scrollDot {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 22px; }
}

.scroll-indicator p {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ==================== Section Headers ==================== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Space Grotesk', 'PingFang SC', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ==================== Services ==================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--t-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--t-normal);
}

.service-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.15), rgba(124, 58, 237, 0.15));
  margin-bottom: 24px;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent-cyan);
}

.service-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==================== Gallery (shared) ==================== */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all var(--t-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0, 217, 255, 0.3);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.gallery-grid-wide {
  grid-template-columns: repeat(4, 1fr);
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  transition: all var(--t-normal);
}

.gallery-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.gallery-card.hidden {
  display: none;
}

.card-image {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform var(--t-slow);
}

.gallery-card:hover .card-image {
  transform: scale(1.08);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 26, 0.95) 0%, rgba(10, 14, 26, 0.3) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  transition: background var(--t-normal);
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(0, 217, 255, 0.2);
  border: 1px solid rgba(0, 217, 255, 0.3);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 10px;
  align-self: flex-start;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-normal);
}

.gallery-card:hover .card-desc {
  max-height: 60px;
}

.card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--t-normal);
}

.gallery-card:hover .card-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.card-play svg {
  width: 24px;
  height: 24px;
  color: #fff;
}

/* 3D object card specific */
.object-card .card-3d-preview {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: radial-gradient(circle at center, var(--bg-tertiary), var(--bg-secondary));
}

.object-card .card-3d-preview canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ==================== Process ==================== */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.process-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--t-normal);
  position: relative;
  backdrop-filter: blur(10px);
}

.process-step:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.9;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==================== Stats ==================== */
.stats {
  background: linear-gradient(180deg, transparent, rgba(124, 58, 237, 0.05), transparent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 32px 16px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: all var(--t-normal);
}

.stat-item:hover {
  background: var(--surface-hover);
  transform: translateY(-4px);
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.stat-suffix {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ==================== Contact ==================== */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.15), rgba(124, 58, 237, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  color: var(--accent-cyan);
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 1.05rem;
  font-weight: 500;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 15px;
  transition: border-color var(--t-fast);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-tertiary);
}

.form-submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

.form-success {
  text-align: center;
  color: var(--accent-cyan);
  font-size: 0.9rem;
  margin-top: 16px;
  opacity: 0;
  transition: opacity var(--t-normal);
}

.form-success.show {
  opacity: 1;
}

/* ==================== Footer ==================== */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.icp-number {
  margin-top: 2px !important;
}

.icp-number a {
  color: var(--text-tertiary);
  transition: color var(--t-fast);
}

.icp-number a:hover {
  color: var(--text-secondary);
}

/* ==================== View More ==================== */
.view-more {
  text-align: center;
  margin-top: 48px;
}

/* ==================== Case Page Hero ==================== */
.case-hero {
  padding: 140px 0 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  transition: color var(--t-fast);
}

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

.case-page-title {
  font-family: 'Space Grotesk', 'PingFang SC', sans-serif;
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.case-page-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ==================== Cases Grid (detail pages) ==================== */
.cases-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .cases-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .cases-grid-4 { grid-template-columns: 1fr; }
}

/* ==================== Modals ==================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.active {
  display: flex;
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 8, 18, 0.85);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalSlideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideUp {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all var(--t-fast);
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.7);
  transform: rotate(90deg);
}

.modal-body {
  display: flex;
  flex-direction: column;
  height: 90vh;
  max-height: 90vh;
}

#panorama-viewer {
  flex: 1;
  min-height: 400px;
  position: relative;
}

#panorama-viewer .pnlm-container {
  background: var(--bg-primary);
}

#object-viewer {
  flex: 1;
  min-height: 400px;
  position: relative;
  background: radial-gradient(circle at center, #1a2238, var(--bg-primary));
}

#object-viewer canvas {
  display: block;
}

.modal-info {
  padding: 20px 28px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.modal-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(0, 217, 255, 0.15);
  border: 1px solid rgba(0, 217, 255, 0.3);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.modal-info h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.modal-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.object-controls {
  display: flex;
  gap: 12px;
  padding: 0 28px 20px;
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.ctrl-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--t-fast);
}

.ctrl-btn:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.ctrl-btn.active {
  background: rgba(0, 217, 255, 0.15);
  border-color: rgba(0, 217, 255, 0.4);
  color: var(--accent-cyan);
}

/* ==================== Scroll Reveal ==================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid-wide { grid-template-columns: repeat(2, 1fr); }
  .process-timeline { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    transition: right var(--t-normal);
    padding: 80px 0;
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-grid-wide { grid-template-columns: repeat(2, 1fr); }
  .process-timeline { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-content { flex-direction: column; text-align: center; }

  .modal-content {
    border-radius: var(--radius-md);
  }

  .modal-body {
    height: 100vh;
    max-height: 100vh;
  }

  #panorama-viewer, #object-viewer {
    min-height: 300px;
  }

  .contact-form {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .gallery-grid-wide { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .filter-bar { gap: 8px; }
  .filter-btn { padding: 6px 16px; font-size: 13px; }
}

/* Pannellum custom styles */
.pnlm-load-box {
  background: var(--bg-secondary) !important;
  border-radius: var(--radius-md) !important;
}

.pnlm-lbar {
  background: rgba(0, 0, 0, 0.6) !important;
}

.pnlm-about-msg {
  display: none !important;
}