/* Lumen — components.css : reusable widgets (sliders, buttons, inputs, cards, toast, modal, ...) */
/* Sliders */
.slider-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.slider-row:last-child { margin-bottom: 0; }
.slider-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}
.slider-head label {
  color: var(--text);
  font-weight: 500;
}
.slider-head .slider-value {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 600;
  background: var(--panel-2);
  padding: 2px 7px;
  border-radius: 4px;
  min-width: 42px;
  text-align: center;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--panel-3);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 4px var(--accent-soft), 0 2px 6px rgba(0,0,0,0.3);
  transition: all 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 0 5px var(--accent-soft), 0 2px 8px var(--accent-glow);
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* Filter grid */
.filter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.filter-card {
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  border: 1.5px solid transparent;
  transition: all 0.18s;
  background: var(--panel-2);
}
.filter-card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.filter-card.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.filter-card canvas, .filter-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: #fff;
}
.filter-card .filter-name {
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  padding: 4px 2px;
  background: var(--panel-2);
  color: var(--text-muted);
}
.filter-card.active .filter-name { background: var(--accent-soft); color: var(--accent); }

/* Aspect ratio buttons */
.aspect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.aspect-btn {
  padding: 8px 4px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.15s;
}
.aspect-btn:hover { color: var(--text); border-color: var(--border-strong); }
.aspect-btn.active { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }

/* Inputs */
.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.input-row label {
  font-size: 11.5px;
  color: var(--text-muted);
  width: 60px;
  flex-shrink: 0;
}
.input-row input[type="number"],
.input-row input[type="text"],
.input-row select {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 12px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  min-width: 0;
}
.input-row input:focus, .input-row select:focus { border-color: var(--accent); }
.input-row input[type="color"] {
  width: 36px; height: 30px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  padding: 2px;
  cursor: pointer;
}

/* Buttons */
.btn {
  padding: 8px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.btn:hover { background: var(--panel-3); border-color: var(--border-strong); }
.btn:active { transform: scale(0.97); }
.btn svg { width: 13px; height: 13px; }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { background: transparent; }
.btn.full { width: 100%; justify-content: center; }
.btn-row { display: flex; gap: 6px; }
.btn-row .btn { flex: 1; justify-content: center; }

/* Color swatches */
.color-swatches {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 5px;
  margin-top: 6px;
}
.swatch {
  aspect-ratio: 1;
  border-radius: 5px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
}
.swatch:hover { transform: scale(1.1); }
.swatch.active { border-color: var(--text); box-shadow: 0 0 0 2px var(--accent); }

/* Tool tabs (draw tools) */
.tool-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  background: var(--panel-2);
  padding: 4px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.tool-tab {
  padding: 8px 4px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: all 0.15s;
}
.tool-tab:hover { color: var(--text); }
.tool-tab.active { background: var(--panel); color: var(--accent); box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.tool-tab svg { width: 16px; height: 16px; }

/* Shape grid */
.shape-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.shape-btn {
  aspect-ratio: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: all 0.15s;
}
.shape-btn:hover { color: var(--text); border-color: var(--border-strong); }
.shape-btn.active { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.shape-btn svg { width: 18px; height: 18px; }

/* History list */
.history-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-2);
}
.history-item {
  padding: 8px 10px;
  font-size: 11.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}
.history-item:last-child { border-bottom: none; }
.history-item:hover { background: var(--panel-3); }
.history-item.current { background: var(--accent-soft); color: var(--accent); }
.history-item svg { width: 12px; height: 12px; opacity: 0.7; flex-shrink: 0; }

/* Recent files */
.recent-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.recent-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.15s;
}
.recent-item:hover { background: var(--panel-2); }
.recent-thumb {
  width: 36px; height: 36px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--panel-3);
  flex-shrink: 0;
}
.recent-info { flex: 1; min-width: 0; }
.recent-name {
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.recent-meta {
  font-size: 10px;
  color: var(--text-muted);
}

/* Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 36px; height: 20px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute;
  inset: 0;
  background: var(--panel-3);
  border-radius: 20px;
  cursor: pointer;
  transition: 0.2s;
}
.switch-slider::before {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  left: 3px; top: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: 0.2s;
}
.switch input:checked + .switch-slider { background: var(--accent); }
.switch input:checked + .switch-slider::before { transform: translateX(16px); background: #fff; }

.switch-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding: 4px 0;
}


/* Toasts */
.toast-container {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}
.toast {
  background: var(--panel-3);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastIn 0.3s cubic-bezier(0.22,1,0.36,1);
  pointer-events: auto;
}
.toast svg { width: 14px; height: 14px; }
.toast.success { border-left: 3px solid var(--success); }
.toast.success svg { color: var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.error svg { color: var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }
.toast.info svg { color: var(--accent); }
.toast.out { animation: toastOut 0.25s forwards; }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toastOut {
  to { opacity: 0; transform: translateY(20px); }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: fadeIn 0.2s;
}
.modal-backdrop.active { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  width: 420px;
  max-width: 92vw;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.25s cubic-bezier(0.22,1,0.36,1);
}
@keyframes modalIn {
  from { transform: scale(0.94) translateY(10px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}
.modal h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.modal p { color: var(--text-muted); font-size: 12.5px; margin-bottom: 18px; }

/* Export size preview */
.size-preview {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
}
.size-preview-row {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
  padding: 3px 0;
}
.size-preview-row span:first-child { color: var(--text-muted); }
.size-preview-row span:last-child { font-weight: 600; }
.size-bar {
  height: 5px;
  background: var(--panel-3);
  border-radius: 3px;
  margin-top: 8px;
  overflow: hidden;
}
.size-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success), var(--warning), var(--danger));
  border-radius: 3px;
  transition: width 0.3s;
}

/* Crop box (draggable/resizable DOM overlay, see js/ui/crop-box.js) */
.crop-box {
  position: absolute;
  border: 1.5px solid var(--accent);
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.55);
  cursor: move;
  z-index: 6;
}
.crop-handle {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--accent);
  border: 1.5px solid #fff;
  border-radius: 2px;
  z-index: 7;
}
.crop-handle-nw { left: -6px; top: -6px; cursor: nwse-resize; }
.crop-handle-n  { left: 50%; top: -6px; margin-left: -6px; cursor: ns-resize; }
.crop-handle-ne { right: -6px; top: -6px; cursor: nesw-resize; }
.crop-handle-e  { right: -6px; top: 50%; margin-top: -6px; cursor: ew-resize; }
.crop-handle-se { right: -6px; bottom: -6px; cursor: nwse-resize; }
.crop-handle-s  { left: 50%; bottom: -6px; margin-left: -6px; cursor: ns-resize; }
.crop-handle-sw { left: -6px; bottom: -6px; cursor: nesw-resize; }
.crop-handle-w  { left: -6px; top: 50%; margin-top: -6px; cursor: ew-resize; }

/* Layer list remove button (Select panel) */
.layer-remove {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}
.layer-remove:hover { color: var(--danger); background: var(--panel-3); }


/* Loading spinner */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Tabs in panel */
.panel-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.panel-tabs::-webkit-scrollbar { display: none; }
.panel-tab {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all 0.15s;
}
.panel-tab:hover { color: var(--text); }
.panel-tab.active { background: var(--accent-soft); color: var(--accent); }

/* Info card */
.info-card {
  background: var(--panel-2);
  border-radius: 8px;
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  font-size: 11.5px;
}
.info-card .info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.info-card .info-label {
  color: var(--text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.info-card .info-value { font-weight: 600; font-variant-numeric: tabular-nums; }

/* AI placeholder */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.ai-card {
  padding: 10px;
  background: linear-gradient(135deg, var(--panel-2), var(--panel-3));
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.ai-card:hover { transform: translateY(-1px); border-color: var(--accent); }
.ai-card::before {
  content: 'AI';
  position: absolute;
  top: 6px; right: 6px;
  font-size: 8.5px;
  font-weight: 800;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 5px;
  border-radius: 3px;
}
.ai-card .ai-icon { width: 22px; height: 22px; color: var(--accent); }
.ai-card .ai-name { font-size: 11.5px; font-weight: 600; }
.ai-card .ai-desc { font-size: 10px; color: var(--text-muted); line-height: 1.3; }

/* Connected = a real plugin is registered for this card's id (see js/core/plugins.js) */
.ai-card.connected { border-color: var(--success); }
.ai-card.connected::before { content: 'LIVE'; color: var(--success); background: rgba(92,219,149,0.14); }
.ai-card .ai-status { font-size: 9px; font-weight: 700; color: var(--success); letter-spacing: 0.02em; }
.ai-card.busy { opacity: 0.6; pointer-events: none; }
.ai-card:disabled { opacity: 0.6; pointer-events: none; }