/* ═══════════════════════════════════════════════════
   MEHNDISATHI — TRYON.CSS
   AR Try-On Interface Styles
═══════════════════════════════════════════════════ */

/* ─── Try-On Body ─── */
.tryon-body {
  background: var(--bg-primary);
  overflow: hidden; /* prevent body scroll on desktop */
}
@media (max-width: 768px) {
  .tryon-body { overflow: auto; }
}

/* ─── Try-On Navbar ─── */
.navbar-tryon {
  background: rgba(10, 7, 2, 0.95) !important;
  backdrop-filter: blur(20px);
}
.tryon-nav-actions {
  display: flex; align-items: center; gap: 10px;
}

/* ═══════════════════════════════════════════════════
   MAIN LAYOUT — Two-panel split
═══════════════════════════════════════════════════ */
.tryon-main {
  display: flex;
  height: calc(100vh - var(--nav-height));
  margin-top: var(--nav-height);
  overflow: hidden;
}

/* ── LEFT: Canvas Panel ── */
.tryon-canvas-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}

/* ── RIGHT: Design Panel ── */
.tryon-design-panel {
  width: 340px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  overflow: hidden;
}

/* ─── Mode Toggle ─── */
.mode-toggle {
  display: flex;
  padding: 12px 16px 0;
  gap: 6px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.mode-btn {
  flex: 1; padding: 9px 16px; border-radius: var(--radius-md);
  font-size: 0.82rem; font-weight: 600; color: var(--text-muted);
  background: transparent; border: 1.5px solid transparent;
  transition: var(--transition); cursor: pointer;
}
.mode-btn:hover { color: var(--cream); background: rgba(200,134,10,0.08); }
.mode-btn.active {
  background: rgba(200,134,10,0.15);
  border-color: var(--border-hover);
  color: var(--gold-light);
}

/* ─── Canvas Wrapper ─── */
.canvas-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.mode-panel {
  display: none;
  width: 100%; height: 100%;
}
.mode-panel.active { display: flex; flex-direction: column; }

/* ─── Upload Zone ─── */
.upload-zone {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}

.upload-inner {
  text-align: center; padding: 40px 32px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  max-width: 400px;
}
.upload-icon { font-size: 4rem; opacity: 0.7; filter: drop-shadow(0 4px 12px rgba(200,134,10,0.3)); }
.upload-inner h3 { font-size: 1.3rem; color: var(--cream); }
.upload-inner p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; }
.upload-tips {
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
  margin-top: 6px;
}
.upload-tips span { font-size: 0.75rem; color: var(--text-muted); }

/* ─── Canvas Area (after photo loaded) ─── */
.canvas-area {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
}

.canvas-container {
  flex: 1; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
  cursor: move;
}

#handImage {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  display: block;
  user-select: none; -webkit-user-drag: none;
}

#designCanvas, #overlayCanvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

#overlayCanvas {
  pointer-events: all; /* for drag interactions */
  cursor: move;
}

/* ─── Detection Status ─── */
.detection-status {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  background: rgba(15,10,4,0.8);
  border-top: 1px solid var(--border);
  font-size: 0.78rem; color: var(--text-muted);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted); flex-shrink: 0;
}
.status-dot.detecting { background: var(--amber); animation: pulse-dot 1s infinite; }
.status-dot.detected  { background: #4CAF50; }
.status-dot.error     { background: #F44336; }

/* ─── Camera Area ─── */
.camera-area {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}

.camera-placeholder {
  text-align: center; padding: 40px 32px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.camera-icon { font-size: 4rem; opacity: 0.7; }
.camera-placeholder h3 { color: var(--cream); }
.camera-placeholder p { font-size: 0.875rem; color: var(--text-muted); }
.camera-tips { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.camera-tips span { font-size: 0.75rem; color: var(--text-muted); }

.camera-live { width: 100%; height: 100%; position: relative; }
.camera-live .canvas-container { width: 100%; height: calc(100% - 36px - 44px); }

#cameraVideo {
  width: 100%; height: 100%; object-fit: cover;
  transform: scaleX(-1); /* Mirror for selfie feel */
  display: block;
}

#cameraCanvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  transform: scaleX(-1);
}

.stop-camera-btn {
  position: absolute; top: 12px; right: 12px;
  background: rgba(15,10,4,0.85); color: var(--cream);
  border: 1px solid var(--border); border-radius: 50px;
  padding: 6px 14px; font-size: 0.8rem; cursor: pointer;
  transition: var(--transition);
}
.stop-camera-btn:hover { background: rgba(200,60,60,0.4); border-color: rgba(200,60,60,0.6); }

/* ─── Canvas Controls ─── */
.canvas-controls {
  padding: 10px 14px 8px;
  background: rgba(10,7,2,0.95);
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 8px;
}

.controls-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}

.control-group {
  display: flex; align-items: center; gap: 7px; flex: 1; min-width: 110px;
}
.control-group label {
  font-size: 0.66rem; font-weight: 700; color: var(--gold);
  letter-spacing: 0.07em; text-transform: uppercase; white-space: nowrap;
}
.control-group span {
  font-size: 0.7rem; color: var(--text-muted); min-width: 34px; text-align: right;
}
.control-group input[type=range] {
  flex: 1; accent-color: var(--gold);
  height: 3px; border-radius: 2px; cursor: pointer;
}

/* Color swatches */
.color-swatches-group {
  display: flex; align-items: center; gap: 8px;
}
.ctrl-label {
  font-size: 0.66rem; font-weight: 700; color: var(--gold);
  letter-spacing: 0.07em; text-transform: uppercase; white-space: nowrap;
}
.color-swatches {
  display: flex; gap: 6px; align-items: center;
}
.color-swatch {
  width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid transparent; cursor: pointer;
  transition: var(--transition); flex-shrink: 0;
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.active {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200,134,10,0.35);
  transform: scale(1.1);
}

/* Action buttons */
.ctrl-actions {
  display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto;
}
.ctrl-btn {
  padding: 6px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); color: var(--cream);
  background: rgba(200,134,10,0.08); font-size: 0.75rem;
  font-weight: 600; cursor: pointer; transition: var(--transition);
  white-space: nowrap;
}
.ctrl-btn:hover { border-color: var(--border-hover); background: rgba(200,134,10,0.18); }

/* Gesture hint bar */
.gesture-hint {
  font-size: 0.7rem; color: var(--text-muted);
  padding: 4px 0 2px;
  border-top: 1px solid rgba(200,134,10,0.1);
}
.gesture-hint strong { color: var(--gold); }

/* ═══════════════════════════════════════════════════
   DESIGN PANEL (Right sidebar)
═══════════════════════════════════════════════════ */
.design-panel-header {
  padding: 16px; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.panel-title {
  font-family: var(--font-display); font-size: 1.1rem;
  margin-bottom: 10px; color: var(--cream);
}

.design-search-box {
  position: relative;
}
.design-search-input {
  width: 100%; padding: 9px 14px 9px 36px;
  background: var(--bg-secondary); border: 1.5px solid var(--border);
  border-radius: var(--radius-md); color: var(--cream);
  font-size: 0.85rem; font-family: var(--font-body);
  transition: var(--transition);
}
.design-search-input::placeholder { color: var(--text-muted); }
.design-search-input:focus { outline: none; border-color: var(--border-hover); }
.search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  font-size: 0.9rem; pointer-events: none;
}

/* Custom design upload */
.custom-design-upload {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.custom-upload-label {
  display: flex; align-items: center; gap: 10px;
  background: rgba(200,134,10,0.08); border: 1.5px dashed var(--border-hover);
  border-radius: var(--radius-md); padding: 10px 14px;
  cursor: pointer; transition: var(--transition);
}
.custom-upload-label:hover { background: rgba(200,134,10,0.14); border-color: var(--gold); }
.custom-upload-icon { font-size: 1.4rem; flex-shrink: 0; }
.custom-upload-label strong { display: block; font-size: 0.82rem; color: var(--cream); }
.custom-upload-label span { display: block; font-size: 0.72rem; color: var(--text-muted); }

/* Category filter in panel */
.panel-categories {
  display: flex; gap: 6px; padding: 10px 12px;
  overflow-x: auto; flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}
.panel-categories::-webkit-scrollbar { display: none; }
.panel-cat {
  flex-shrink: 0; padding: 5px 12px; border-radius: 50px;
  border: 1px solid var(--border); color: var(--text-muted);
  font-size: 0.75rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); background: transparent;
  white-space: nowrap;
}
.panel-cat:hover { border-color: var(--border-hover); color: var(--cream); }
.panel-cat.active {
  background: linear-gradient(135deg, var(--gold), var(--amber));
  border-color: transparent; color: #0f0a04; font-weight: 700;
}

/* Designs Grid in panel */
.panel-designs-grid {
  flex: 1; overflow-y: auto;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; padding: 10px 12px;
  align-content: start;
  scrollbar-width: thin;
  scrollbar-color: var(--gold) transparent;
}
.panel-designs-grid::-webkit-scrollbar { width: 4px; }
.panel-designs-grid::-webkit-scrollbar-track { background: transparent; }
.panel-designs-grid::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 2px; }

.panel-design-item {
  aspect-ratio: 1; border-radius: var(--radius-sm);
  border: 2px solid var(--border); overflow: hidden;
  cursor: pointer; transition: var(--transition);
  position: relative;
}
.panel-design-item:hover { border-color: var(--border-hover); transform: scale(1.05); }
.panel-design-item.selected {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200,134,10,0.4);
}
.panel-design-item .item-inner {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  transition: var(--transition);
}
.panel-design-item:hover .item-inner { transform: scale(1.1); }
.panel-design-item .item-name {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(15,10,4,0.9), transparent);
  padding: 4px 4px 3px; font-size: 0.55rem; font-weight: 600;
  color: var(--cream); text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  opacity: 0; transition: opacity 0.2s;
}
.panel-design-item:hover .item-name { opacity: 1; }

/* Selected Design Info */
.selected-design-info {
  padding: 12px 14px;
  background: rgba(200,134,10,0.08);
  border-top: 1px solid var(--border-hover);
  flex-shrink: 0;
}
.selected-badge {
  font-size: 0.7rem; font-weight: 700; color: var(--gold);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px;
}
.selected-name { font-size: 0.95rem; font-weight: 700; color: var(--cream); margin-bottom: 4px; }
.selected-desc { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 10px; line-height: 1.5; }
.apply-btn { width: 100%; justify-content: center; }

/* ═══════════════════════════════════════════════════
   PROCESSING OVERLAY
═══════════════════════════════════════════════════ */
.processing-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(10, 7, 2, 0.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
}
.processing-card {
  background: var(--bg-card); border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg); padding: 36px 48px;
  text-align: center; display: flex; flex-direction: column;
  align-items: center; gap: 16px;
  box-shadow: var(--shadow-deep);
}
.processing-spinner {
  width: 48px; height: 48px; border-radius: 50%;
  border: 4px solid rgba(200,134,10,0.2);
  border-top-color: var(--gold);
  animation: spin 0.8s linear infinite;
}
.processing-text { font-size: 0.9rem; color: var(--text-muted); }

/* ═══════════════════════════════════════════════════
   SAVE MODAL
═══════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 600;
  background: rgba(10,7,2,0.8); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal-card {
  background: var(--bg-card); border: 1px solid var(--border-hover);
  border-radius: var(--radius-xl); padding: 28px;
  max-width: 420px; width: 100%; position: relative;
  box-shadow: var(--shadow-deep);
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  background: rgba(200,134,10,0.1); border: 1px solid var(--border);
  color: var(--cream); width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 0.8rem; transition: var(--transition);
}
.modal-close:hover { background: rgba(200,60,60,0.3); border-color: rgba(200,60,60,0.6); }
.modal-card h3 { font-size: 1.1rem; margin-bottom: 16px; color: var(--cream); }
.save-preview-img { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 16px; min-height: 200px; background: var(--bg-secondary); }
.save-preview-img img { width: 100%; display: block; }
.save-actions { display: flex; gap: 10px; margin-bottom: 10px; }
.save-actions .btn { flex: 1; justify-content: center; }
.save-hint { font-size: 0.75rem; color: var(--text-muted); text-align: center; }

/* ═══════════════════════════════════════════════════
   RESPONSIVE — MOBILE
═══════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .tryon-main {
    flex-direction: column;
    height: auto;
    overflow: auto;
  }

  .tryon-canvas-panel {
    height: 55vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .tryon-design-panel {
    width: 100%;
    height: auto;
    max-height: 45vh;
  }

  .panel-designs-grid {
    grid-template-columns: repeat(5, 1fr);
    padding: 8px;
  }

  .canvas-controls {
    gap: 8px;
  }
  .control-group {
    min-width: 80px;
  }
}

@media (max-width: 480px) {
  .tryon-canvas-panel { height: 50vh; }
  .tryon-design-panel { max-height: 50vh; }
  .panel-designs-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ═══════════════════════════════════════════════════
   SESSION 4 ADDITIONS
═══════════════════════════════════════════════════ */

/* ─── WhatsApp Button ─── */
.btn-whatsapp {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 11px 20px; border-radius: 50px;
  background: #25D366; color: #fff;
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 700;
  border: none; cursor: pointer; transition: var(--transition);
  white-space: nowrap;
}
.btn-whatsapp:hover { background: #20bd5a; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,211,102,0.35); }
.btn-whatsapp svg { flex-shrink: 0; }

/* ─── Save Actions (3 buttons) ─── */
.save-actions {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
}
.save-actions .btn { flex: 1; min-width: 100px; justify-content: center; font-size: 0.85rem; padding: 11px 16px; }

/* ─── Recently Viewed Row ─── */
.recent-row { padding: 10px 12px 0; }
.recent-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--text-muted); margin-bottom: 8px;
}
.recent-grid { grid-template-columns: repeat(6, 1fr) !important; gap: 4px !important; }

/* ─── Color picker row ─── */
.color-picker-section { padding: 10px 14px 6px; }
.color-picker-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); margin-bottom: 8px; }
.color-picker-row { display: flex; gap: 8px; flex-wrap: wrap; }
.color-swatch:hover { transform: scale(1.18) !important; }

/* ─── Gesture Tutorial scaleIn ─── */
@keyframes scaleIn {
  from { opacity:0; transform:scale(0.92) translateY(16px); }
  to   { opacity:1; transform:scale(1) translateY(0); }
}

/* ─── Save hint ─── */
.save-hint { font-size: 0.78rem; color: var(--text-muted); text-align: center; margin-top: 10px; }

/* ─── Mobile save actions ─── */
@media (max-width: 480px) {
  .save-actions { flex-direction: column; }
  .save-actions .btn { min-width: unset; }
  .recent-grid { grid-template-columns: repeat(4, 1fr) !important; }
}