/* ============================================================
   Base reset & layout
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0d0d0d;
  font-family: 'Segoe UI', system-ui, sans-serif;
  color: rgba(255, 255, 255, 0.9);
}

/* ============================================================
   Canvas — PlayCanvas render target, selalu fullscreen
   ============================================================ */
#splat-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#splat-canvas:active {
  cursor: grabbing;
}

/* ============================================================
   Overlay — wrapper UI di atas canvas
   Pointer-events: none agar klik/drag tembus ke canvas,
   diaktifkan per-elemen yang butuh interaksi.
   ============================================================ */
#overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

/* ============================================================
   FPS counter — tengah atas
   ============================================================ */
#fps-counter {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.4);
  padding: 3px 10px;
  border-radius: 4px;
  pointer-events: none;
  letter-spacing: 0.05em;
  z-index: 11;
}

/* ============================================================
   Info panel — pojok kiri bawah
   ============================================================ */
#info-panel {
  position: absolute;
  bottom: 24px;
  left: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
}

#scene-label {
  font-size: 15px;
  font-weight: 600;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
  letter-spacing: 0.02em;
}

#scene-type {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  padding: 2px 8px;
  backdrop-filter: blur(6px);
  align-self: flex-start;
}

/* ============================================================
   Back button — pojok kiri atas
   ============================================================ */
#back-btn {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(15, 15, 15, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, border-color 0.2s ease;
  z-index: 12;
}

#back-btn:hover {
  background: rgba(40, 40, 40, 0.85);
  border-color: rgba(255, 255, 255, 0.35);
}

.back-arrow {
  font-size: 16px;
  line-height: 1;
}

/* ============================================================
   Scene list toggle & panel — pojok kanan atas
   ============================================================ */
#scene-list-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 8px 14px;
  background: rgba(15, 15, 15, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease;
  letter-spacing: 0.03em;
}

#scene-list-toggle:hover {
  background: rgba(40, 40, 40, 0.85);
}

#scene-list {
  position: absolute;
  top: 56px;
  right: 20px;
  min-width: 220px;
  background: rgba(15, 15, 15, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  padding: 8px;
  backdrop-filter: blur(12px);
  pointer-events: auto;
}

.scene-list-header {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
  padding: 4px 8px 8px;
}

.scene-list-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.scene-list-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.scene-list-item.active {
  background: rgba(41, 182, 246, 0.15);
  color: #29b6f6;
}

/* ============================================================
   Camera hint — pojok kanan bawah, fade in saat scene load, fade out 3 detik
   ============================================================ */
#camera-hint {
  position: absolute;
  bottom: 64px;
  right: 20px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  padding: 5px 11px;
  pointer-events: none;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.5s ease;
}

#camera-hint.visible {
  opacity: 1;
}

/* ============================================================
   Loading screen — full-screen overlay untuk initial load & transisi
   ============================================================ */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: #0d0d0d;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

#loading-screen.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: #29b6f6;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

#loading-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 280px;
  text-align: center;
  line-height: 1.5;
}

/* Progress bar */
#progress-bar-container {
  width: 240px;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1565c0, #29b6f6);
  border-radius: 2px;
  transition: width 0.2s ease;
}

#loading-percent {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  font-variant-numeric: tabular-nums;
  min-width: 3ch;
  text-align: center;
}

#loading-messages {
  margin-top: 12px;
  text-align: center;
  min-height: 48px;
}

#loading-main-text {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  transition: opacity 0.4s ease;
  margin-bottom: 6px;
  text-align: center;
}

#loading-sub-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.5;
  max-width: 360px;
  text-align: center !important;
  margin: 0 auto !important;
  width: 100%;
  display: block;
  padding: 0 24px;
  opacity: 0;
  transition: opacity 0.6s ease;
}

#loading-sub-text.visible {
  opacity: 1;
}

#retry-btn {
  margin-top: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  color: white;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

#retry-btn:hover { background: rgba(255,255,255,0.2); }

/* ============================================================
   Minimap — pojok kanan bawah, hanya tampil di scene eksterior
   ============================================================ */
#minimap {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 200px;
  background: rgba(10, 10, 10, 0.75);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  overflow: hidden;
  backdrop-filter: blur(8px);
  pointer-events: auto;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  transition: width 0.3s ease, height 0.3s ease;
  user-select: none;
}

#minimap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

#minimap-toggle {
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  font-size: 16px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  transition: color 0.2s;
}

#minimap-toggle:hover { color: white; }

#minimap-fullscreen {
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  transition: color 0.2s;
}

#minimap-fullscreen:hover { color: white; }

#minimap.is-fullscreen {
  position: fixed;
  bottom: auto;
  right: auto;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(90vw, 900px);
  max-height: 85vh;
  z-index: 25;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}

#minimap.is-fullscreen #minimap-header {
  flex-shrink: unset;
}

#minimap.is-fullscreen #minimap-body {
  max-height: calc(85vh - 40px);
  overflow-y: auto;
  overflow-x: hidden;
}

#minimap.is-fullscreen #minimap-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: unset;
  opacity: 1;
}

#minimap-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 24;
  cursor: pointer;
  pointer-events: none;
}

#minimap-overlay.visible {
  display: block;
  pointer-events: auto;
}

#minimap-body {
  position: relative;
  width: 100%;
}

#minimap-img-wrapper {
  position: relative;
  width: 100%;
  line-height: 0;
}

#minimap-img {
  width: 100%;
  display: block;
  opacity: 0.85;
}

#minimap-indicator {
  position: absolute;
  width: 12px;
  height: 12px;
  background: #f6a629;
  border: 2px solid white;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(246,166,41,0.8), 0 0 0 3px rgba(246,166,41,0.3);
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: left 0.3s ease, top 0.3s ease;
  animation: pulse-marker 2s infinite;
}

@keyframes pulse-marker {
  0%, 100% {
    box-shadow: 0 0 8px rgba(246,166,41,0.8), 0 0 0 3px rgba(246,166,41,0.3);
  }
  50% {
    box-shadow: 0 0 12px rgba(246,166,41,1), 0 0 0 6px rgba(246,166,41,0.1);
  }
}

#minimap.collapsed #minimap-body {
  display: none;
}

#minimap.collapsed {
  width: auto;
}

#minimap.is-interior {
  width: 280px;
}

#minimap.is-interior #minimap-img {
  opacity: 0.9;
}

/* is-fullscreen.is-interior — specificità lebih tinggi, override is-interior width */
#minimap.is-fullscreen.is-interior {
  width: min(90vw, 900px);
}

/* ============================================================
   Photo Comparison — split-screen foto asli vs render 3DGS
   ============================================================ */
#comparison-toggle {
  position: absolute;
  top: 60px;
  left: 20px;
  padding: 8px 14px;
  background: rgba(15, 15, 15, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  transition: background 0.2s;
  z-index: 12;
}

#comparison-toggle:hover {
  background: rgba(40, 40, 40, 0.85);
}

#comparison-toggle, #info-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
}

#comparison-toggle.active {
  background: rgba(41, 182, 246, 0.2);
  border-color: #29b6f6;
  color: #29b6f6;
}

#photo-comparison {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
  z-index: 5;
}

#photo-comparison.is-active {
  display: flex;
}

#photo-panel {
  position: relative;
  height: 100%;
  background: #000;
  overflow: hidden;
  flex-shrink: 0;
  pointer-events: auto;
}

.comparison-label {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(0, 0, 0, 0.5);
  padding: 3px 10px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 2;
  white-space: nowrap;
}

#canvas-label {
  position: absolute;
  top: 12px;
  left: 40%;
  transform: none;
  z-index: 11;
  pointer-events: none;
}

#photo-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  pointer-events: auto;
  transition: background 0.2s;
}

#photo-close:hover {
  background: rgba(200, 50, 50, 0.7);
}

#comparison-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

#photo-nav {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 20px;
  padding: 6px 14px;
  pointer-events: auto;
  z-index: 2;
}

#photo-nav button {
  background: none;
  border: none;
  color: white;
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  opacity: 0.8;
  transition: opacity 0.2s;
}

#photo-nav button:hover {
  opacity: 1;
}

#photo-counter {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  min-width: 40px;
  text-align: center;
}

#comparison-divider {
  width: 4px;
  background: rgba(255, 255, 255, 0.4);
  cursor: ew-resize;
  position: relative;
  flex-shrink: 0;
  pointer-events: auto;
  z-index: 10;
  transition: background 0.2s;
}

#comparison-divider:hover {
  background: #29b6f6;
}

#divider-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  width: 28px;
  height: 28px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #333;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* ============================================================
   Reconstruction Info Panel — toggle button pojok kanan atas, sebelah kiri Scene
   ============================================================ */
#info-toggle {
  position: absolute;
  top: 20px;
  right: 120px;
  padding: 8px 14px;
  background: rgba(15, 15, 15, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  transition: background 0.2s;
  z-index: 12;
}

#info-toggle:hover {
  background: rgba(40, 40, 40, 0.85);
}

#info-toggle.active {
  background: rgba(41, 182, 246, 0.15);
  border-color: #29b6f6;
  color: #29b6f6;
}

#reconstruction-panel {
  position: absolute;
  top: 56px;
  right: 120px;
  width: 240px;
  background: rgba(10, 10, 10, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  pointer-events: auto;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  z-index: 12;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.panel-hidden {
  opacity: 0;
  pointer-events: none !important;
  transform: translateY(8px);
}

#reconstruction-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

#info-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

#info-close:hover {
  color: white;
}

#reconstruction-body {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.info-key {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}

.info-val {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  text-align: right;
}

/* ============================================================
   Navigation Guide — tombol, overlay, modal
   ============================================================ */
#guide-toggle {
  position: absolute;
  top: 20px;
  right: 220px;
  background: rgba(0, 0, 0, 0.5);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.2s;
  z-index: 10;
  pointer-events: auto;
}

#guide-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
}

#guide-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 30;
  cursor: pointer;
  pointer-events: none;
}

#guide-overlay.visible {
  display: block;
  pointer-events: auto;
}

#guide-modal {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(520px, 90vw);
  max-height: 80vh;
  background: rgba(18, 18, 18, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  z-index: 31;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
  pointer-events: auto;
}

#guide-modal.visible {
  display: block;
}

#guide-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

#guide-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.5);
  font-size: 16px;
  cursor: pointer;
  padding: 0 2px;
  transition: color 0.2s;
}

#guide-close:hover {
  color: white;
}

#guide-body {
  padding: 16px 18px;
  overflow-y: auto;
  max-height: calc(80vh - 50px);
}

.guide-section {
  margin-bottom: 20px;
}

.guide-section:last-child {
  margin-bottom: 0;
}

.guide-section-title {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.guide-section-note {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 8px;
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
}

.guide-table tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.guide-table tr:last-child {
  border-bottom: none;
}

.guide-table td {
  padding: 7px 4px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  vertical-align: top;
}

.guide-key {
  font-family: monospace;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  padding: 2px 8px;
  white-space: nowrap;
  width: 1%;
  padding-right: 16px;
}