/* AR screen — camera view, sidebar, overlays. */

#arScreen {
  display: none;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg);
  z-index: 1000;
}

/* Top instruction banner — compact pill sitting inside the camera-view
   rectangle. Starts past the Home button and is capped to never reach the
   sidebar's left edge. */
.ar-header {
  position: absolute;
  top: clamp(0.6rem, 1.2vw, 0.8rem);
  left: calc(clamp(0.75rem, 1.5vw, 1rem) + 120px);
  right: auto;
  width: auto;
  max-width: calc(
    100vw
    - clamp(250px, 35vw, 450px)                        /* sidebar */
    - clamp(0.75rem, 1.5vw, 1rem)                      /* sidebar gap   */
    - (clamp(0.75rem, 1.5vw, 1rem) + 120px)            /* Home gutter   */
  );
  z-index: 10;
  padding: 0.55rem 1rem;
  background: #1A140E;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 40px;
  box-sizing: border-box;
}

.ar-header::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
  animation: ar-pulse 2s ease-in-out infinite;
}

.ar-header p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-soft);
  text-align: left;
}

.ar-header p strong {
  color: var(--text);
  font-weight: 600;
  margin-right: 0.25rem;
}

/* Floating corner buttons */
.ar-back-button,
.ar-help-button {
  position: absolute;
  top: clamp(0.75rem, 1.5vw, 1rem);
  z-index: 20;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
  border: 1px solid var(--hairline-strong);
  padding: 0.45rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ar-back-button  { left: clamp(0.75rem, 1.5vw, 1rem); }
.ar-help-button  { right: clamp(0.75rem, 1.5vw, 1rem); }

.ar-back-button:hover,
.ar-help-button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-color: rgba(255, 140, 0, 0.45);
}

/* Camera viewport + targeting brackets */
.ar-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.ar-container::before,
.ar-container::after {
  content: '';
  position: absolute;
  pointer-events: none;
  width: 14%;
  height: 14%;
  border: 0 solid rgba(255, 140, 0, 0.55);
}

.ar-container::before {
  top: 10%;
  left: 3%;
  border-top-width: 2px;
  border-left-width: 2px;
}

.ar-container::after {
  bottom: 10%;
  right: calc(clamp(250px, 35vw, 450px) + 3%);
  border-bottom-width: 2px;
  border-right-width: 2px;
}

#video  { display: none; }
#canvas { display: none; }

#threeContainer {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  height: 100%;
  z-index: 5;
}

.ar-background {
  position: absolute;
  inset: 0;
  background: var(--bg);
  z-index: 1;
}

/* Left rail retained for structural compatibility but visually hidden —
   the dark background already covers the void. */
.ar-left-panel {
  display: none;
}

/* Sidebar on the right */
.ar-sidebar {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 15;
  width: clamp(250px, 35vw, 450px);
  height: 100%;
  padding: 1.25rem 1.25rem 1.5rem;
  background: #1A140E;
  border-left: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
}

.ar-sidebar h3 {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 0.9rem;
}

.ar-kit-info {
  flex: 0 0 auto;
  overflow-y: auto;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  position: relative;
  max-height: 40vh;
}

/* Status indicator — pulsing orange by default, green when a marker is detected */
.ar-kit-info::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(255, 140, 0, 0.15);
  margin-bottom: 0.8rem;
  animation: ar-pulse 2s ease-in-out infinite;
}

.ar-kit-info.has-marker::before {
  background: #4CAF50;
  box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.2);
  animation: none;
}

.ar-kit-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.45rem;
}

.ar-kit-desc {
  font-size: 0.85rem;
  color: var(--text-soft);
  line-height: 1.55;
}

/* Animation Settings button (dynamically injected by JS) — force it neutral
   and push it + the Debug button to the bottom of the sidebar via margin-top:auto. */
.ar-sidebar > button[style] {
  background: rgba(255, 255, 255, 0.04) !important;
  color: var(--text) !important;
  border: 1px solid var(--hairline-strong) !important;
  width: 100% !important;
  height: 40px !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.2px !important;
  text-transform: none !important;
  box-shadow: none !important;
  margin: auto 0 0.6rem 0 !important;
  transition: background 0.15s ease, border-color 0.15s ease !important;
}

.ar-sidebar > button[style]:hover {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 140, 0, 0.5) !important;
}

.ar-sidebar > button[style] > span {
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  text-transform: none !important;
}

/* Debug button at sidebar bottom */
.debug-button {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
  border: 1px solid var(--hairline-strong);
  padding: 0.55rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.debug-button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-color: rgba(255, 140, 0, 0.45);
}

/* Initial overlay (Start Camera) */
.ar-initial-overlay {
  position: absolute;
  inset: 0;
  z-index: 50;
  padding: clamp(1rem, 4vw, 2rem);
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ar-initial-overlay.hidden { display: none; }

.ar-initial-content {
  max-width: 460px;
  padding: 1.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  color: var(--text);
}

.ar-initial-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--text);
}

.ar-instructions-grid { margin-bottom: 1.25rem; }

.ar-instruction-item {
  padding: 0.8rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--brand);
  border-radius: var(--radius-sm);
}

.ar-instruction-item h4 {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
}

.ar-instruction-item p {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.55;
  margin: 0;
}

.ar-start-button {
  display: block;
  width: 100%;
  padding: 0.75rem 1.6rem;
  background: var(--brand);
  color: #ffffff;
  border: 1px solid var(--brand);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.ar-start-button:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

/* Instructions overlay (Help) */
.ar-instructions-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s;
}

.ar-instructions-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.ar-instructions-content {
  max-width: clamp(400px, 90vw, 600px);
  max-height: 80vh;
  overflow-y: auto;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--bg-elev);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg);
  color: var(--text);
}

.ar-instructions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.ar-instructions-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.ar-instructions-close {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ar-instructions-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-color: rgba(255, 140, 0, 0.45);
}

.ar-instructions-section { margin-bottom: 1.5rem; }

.ar-instructions-section h4 {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.ar-instructions-section p,
.ar-instructions-section li {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.6;
  margin-bottom: 0.4rem;
}

.ar-instructions-section ul {
  padding-left: 1.25rem;
}

/* Debug overlay */
.debug-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1001;
  padding: clamp(1rem, 3vw, 2rem);
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.95);
  color: #ffffff;
}

.debug-overlay.visible { display: block; }

.debug-overlay-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.debug-overlay-header h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.debug-close {
  padding: 0.45rem 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.debug-close:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 140, 0, 0.45);
}

.marker-info {
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
}

.debug-canvas-container {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  text-align: center;
}

#debugCanvas {
  border: 1px solid rgba(255, 255, 255, 0.2);
  max-width: 100%;
  height: auto;
}