/* ═══════════════════════════════════════════
   Virtual Tour 360° — CSS
   Thiết kế cho Người cao tuổi & Trẻ em
═══════════════════════════════════════════ */

/* ── Container chính ── */
.vt-page {
  min-height: 100vh;
  background: #0f1419;
  color: #e8ecef;
  position: relative;
}

.vt-page .container {
  max-width: 1200px;
  padding: 0 16px;
}

/* ── Header / Breadcrumb ── */
.vt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 12px;
  flex-wrap: wrap;
}

.vt-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.25s;
}

.vt-back-btn:hover {
  background: rgba(255,255,255,0.12);
  color: #e2e8f0;
}

.vt-title-area {
  text-align: center;
  flex: 1;
}

.vt-title-area h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.vt-title-area h1 .vt-badge-360 {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  animation: vt-pulse 2s ease-in-out infinite;
}

@keyframes vt-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
}

.vt-accessibility-btns {
  display: flex;
  gap: 6px;
}

.vt-accessibility-btns button {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #cbd5e1;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vt-accessibility-btns button:hover {
  background: rgba(255,255,255,0.18);
  color: #fff;
  transform: scale(1.08);
}

/* ── Viewer Container ── */
.vt-viewer-wrapper {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  margin-bottom: 20px;
  background: #000;
}

.vt-viewer-container {
  width: 100%;
  height: 520px;
  background: #111;
  position: relative;
}

@media (max-width: 768px) {
  .vt-viewer-container {
    height: 360px;
  }
}

@media (max-width: 480px) {
  .vt-viewer-container {
    height: 280px;
  }
}

/* ── Loading overlay ── */
.vt-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle, #1a1f2e 0%, #0d1117 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  gap: 20px;
  transition: opacity 0.5s;
}

.vt-loading.hidden {
  opacity: 0;
  pointer-events: none;
}

.vt-loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255,255,255,0.1);
  border-top-color: #f59e0b;
  border-radius: 50%;
  animation: vt-spin 0.8s linear infinite;
}

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

.vt-loading-text {
  font-size: 16px;
  color: #94a3b8;
  font-weight: 600;
}

/* ── Onboarding / Tutorial overlay ── */
.vt-onboarding {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: opacity 0.4s;
}

.vt-onboarding.hidden {
  opacity: 0;
  pointer-events: none;
}

.vt-onboarding-icon {
  font-size: 56px;
  margin-bottom: 16px;
  animation: vt-drag-hint 2s ease-in-out infinite;
}

@keyframes vt-drag-hint {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  25% { transform: translateX(-20px) rotate(-8deg); }
  75% { transform: translateX(20px) rotate(8deg); }
}

.vt-onboarding h3 {
  color: #fff;
  font-size: 22px;
  margin: 0 0 8px;
  font-weight: 700;
}

.vt-onboarding p {
  color: #94a3b8;
  font-size: 15px;
  margin: 0 0 20px;
  max-width: 400px;
}

.vt-onboarding-dismiss {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s;
}

.vt-onboarding-dismiss:hover {
  transform: scale(1.05);
}

/* ── Scene Info Panel (bên dưới viewer) ── */
.vt-scene-info-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 20px;
  transition: all 0.3s;
}

.vt-scene-info-panel h2 {
  margin: 0 0 8px;
  font-size: 20px;
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.vt-scene-info-panel p {
  margin: 0;
  color: #94a3b8;
  font-size: 15px;
  line-height: 1.7;
}

/* ── Controls bar (navigation + audio) ── */
.vt-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.vt-nav-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vt-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #e2e8f0;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  /* Tối thiểu 48px cho người già */
  min-height: 48px;
}

.vt-nav-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.16);
  transform: translateY(-1px);
}

.vt-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.vt-nav-btn.primary {
  background: linear-gradient(135deg, var(--green-700), var(--green-500));
  border-color: var(--green-500);
  color: #fff;
}

.vt-nav-btn.primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(45, 106, 79, 0.4);
}

/* ── Progress bar ── */
.vt-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  max-width: 300px;
}

.vt-progress-text {
  font-size: 13px;
  font-weight: 700;
  color: #94a3b8;
  white-space: nowrap;
}

.vt-progress-bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
}

.vt-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #f59e0b, #ef4444);
  border-radius: 10px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Audio controls ── */
.vt-audio-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.vt-audio-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  border: none;
  color: #fff;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 48px;
}

.vt-audio-btn:hover {
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.4);
  transform: translateY(-1px);
}

.vt-audio-btn.playing {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  animation: vt-pulse-audio 1.5s ease-in-out infinite;
}

@keyframes vt-pulse-audio {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
}

/* ── Scene thumbnails / Scene list ── */
.vt-scenes-list {
  display: flex;
  gap: 12px;
  padding: 16px 0 24px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.vt-scenes-list::-webkit-scrollbar {
  height: 6px;
}
.vt-scenes-list::-webkit-scrollbar-track {
  background: transparent;
}
.vt-scenes-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.15);
  border-radius: 10px;
}

.vt-scene-card {
  flex-shrink: 0;
  width: 160px;
  cursor: pointer;
  border-radius: 14px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: all 0.3s;
  background: rgba(255,255,255,0.04);
}

.vt-scene-card:hover {
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.vt-scene-card.active {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2), 0 8px 20px rgba(0,0,0,0.3);
}

.vt-scene-card-img {
  width: 100%;
  height: 90px;
  object-fit: cover;
  display: block;
}

.vt-scene-card-title {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 600;
  color: #cbd5e1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vt-scene-card.active .vt-scene-card-title {
  color: #f59e0b;
}

/* ── Pannellum custom overrides ── */
/* Hotspots to hơn cho người già */
.pnlm-hotspot {
  width: 40px !important;
  height: 40px !important;
}

.pnlm-hotspot .pnlm-hotspot-base {
  width: 40px !important;
  height: 40px !important;
}

.pnlm-hotspot.pnlm-scene .pnlm-hotspot-base {
  background: linear-gradient(135deg, #f59e0b, #ef4444) !important;
  border: 3px solid #fff !important;
  border-radius: 50% !important;
  width: 48px !important;
  height: 48px !important;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4) !important;
  animation: vt-hotspot-pulse 2s ease-in-out infinite !important;
}

.pnlm-hotspot.pnlm-info .pnlm-hotspot-base {
  background: linear-gradient(135deg, #3b82f6, #6366f1) !important;
  border: 3px solid #fff !important;
  border-radius: 50% !important;
  width: 44px !important;
  height: 44px !important;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4) !important;
  animation: vt-hotspot-pulse-info 2.5s ease-in-out infinite !important;
}

@keyframes vt-hotspot-pulse {
  0%, 100% { 
    box-shadow: 0 4px 16px rgba(0,0,0,0.4), 0 0 0 0 rgba(245, 158, 11, 0.5); 
    transform: scale(1);
  }
  50% { 
    box-shadow: 0 4px 16px rgba(0,0,0,0.4), 0 0 0 14px rgba(245, 158, 11, 0); 
    transform: scale(1.08);
  }
}

@keyframes vt-hotspot-pulse-info {
  0%, 100% { 
    box-shadow: 0 4px 16px rgba(0,0,0,0.4), 0 0 0 0 rgba(59, 130, 246, 0.4); 
    transform: scale(1);
  }
  50% { 
    box-shadow: 0 4px 16px rgba(0,0,0,0.4), 0 0 0 12px rgba(59, 130, 246, 0); 
    transform: scale(1.05);
  }
}

/* Popup lớn hơn, dễ đọc cho người già */
.pnlm-tooltip span {
  font-size: 15px !important;
  line-height: 1.6 !important;
  max-width: 320px !important;
  padding: 14px 18px !important;
  background: rgba(15, 23, 42, 0.95) !important;
  backdrop-filter: blur(12px) !important;
  border: 1px solid rgba(255,255,255,0.15) !important;
  border-radius: 14px !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5) !important;
  color: #e2e8f0 !important;
}

/* Ẩn controls mặc định Pannellum — dùng controls riêng */
.pnlm-controls-container {
  display: none !important;
}

/* ── Fullscreen mode ── */
.vt-viewer-wrapper.fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  border-radius: 0;
  margin: 0;
}

.vt-viewer-wrapper.fullscreen .vt-viewer-container {
  height: 100vh;
}

/* ── Nút fullscreen ── */
.vt-fullscreen-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 50;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.vt-fullscreen-btn:hover {
  background: rgba(0,0,0,0.7);
  transform: scale(1.08);
}

/* ── Scene counter overlay ── */
.vt-scene-counter {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 50;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  padding: 6px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
}

/* ── Destination button on destination.php ── */
.vt-tour-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #1e1b4b, #312e81);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 20px 0;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.vt-tour-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 60%);
  animation: vt-cta-glow 4s ease-in-out infinite;
}

@keyframes vt-cta-glow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(10%, 10%); }
}

.vt-tour-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.3);
  border-color: rgba(99, 102, 241, 0.5);
}

.vt-tour-cta-icon {
  font-size: 36px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.vt-tour-cta-content {
  position: relative;
  z-index: 1;
}

.vt-tour-cta-content h3 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
}

.vt-tour-cta-content p {
  margin: 0;
  font-size: 13px;
  color: #a5b4fc;
}

.vt-tour-cta-arrow {
  margin-left: auto;
  font-size: 22px;
  position: relative;
  z-index: 1;
  transition: transform 0.2s;
}

.vt-tour-cta:hover .vt-tour-cta-arrow {
  transform: translateX(4px);
}

/* ── Không có tour — placeholder ── */
.vt-empty {
  text-align: center;
  padding: 80px 30px;
}

.vt-empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.vt-empty h2 {
  color: #64748b;
  margin: 0 0 8px;
}

.vt-empty p {
  color: #475569;
  font-size: 15px;
}