/* ═══════════════════════════════════════════════════════════════
   DocuMentor v4 — css/panels.css
   Right sidebar, tool panels, presets, sliders, format chips & summary
   ═══════════════════════════════════════════════════════════════ */

#right-panel {
  width: var(--panel-w);
  background: var(--bg1);
  border-left: 1px solid var(--border);
  flex-shrink: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Step Progress Indicator (Desktop Sidebar Top) */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 10px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  gap: 2px;
}

.step-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  border: none;
  background: transparent;
  cursor: pointer;
  opacity: 0.55;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 2px 4px;
  border-radius: var(--r1);
}
.step-btn:hover {
  opacity: 0.85;
}
.step-btn.active {
  opacity: 1;
}
.step-btn.done {
  opacity: 0.9;
}

.step-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg3);
  border: 2px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text1);
}

.step-btn.active .step-circle {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.4);
}
.step-btn.active .step-num {
  color: #ffffff;
}

.step-btn.done .step-circle {
  background: var(--accent-dim);
  border-color: var(--accent);
}
.step-btn.done .step-num {
  color: var(--accent);
}

.step-label {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text2);
  transition: var(--transition);
}
.step-btn.active .step-label {
  color: var(--accent);
  font-weight: 700;
}
.step-btn.done .step-label {
  color: var(--text1);
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border2);
  margin-bottom: 14px;
  border-radius: 1px;
  transition: background 0.25s ease;
}
.step-line.done {
  background: var(--accent);
}

.tool-panel {
  padding: 16px 14px;
  animation: panelSlideUp 0.2s cubic-bezier(0.4,0,0.2,1);
}

.panel-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text2);
  margin-bottom: 10px;
}

.panel-action-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 1px solid var(--border2);
  color: var(--text0);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 8px;
}
.panel-action-btn:hover {
  background: var(--bg3);
  border-color: var(--accent);
  color: var(--accent);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 14px 0;
}

.panel-info-box {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text1);
  padding: 8px 10px;
  background: var(--bg2);
  border-radius: var(--r1);
}

.panel-tip {
  font-size: 11px;
  color: var(--text2);
  margin-top: 8px;
  line-height: 1.4;
}

/* Preset Grid */
.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.preset-btn {
  padding: 7px 8px;
  border-radius: var(--r1);
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text1);
  font-size: 11px;
  font-weight: 500;
  text-align: center;
  transition: var(--transition);
}
.preset-btn:hover { background: var(--bg3); color: var(--text0); }
.preset-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* Custom Dims */
#custom-dims { margin-top: 10px; }
.dim-inputs { display: flex; align-items: center; gap: 6px; }
.dim-inputs input {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--r1);
  color: var(--text0);
  padding: 6px 8px;
  font-size: 12px;
  width: 0;
}
.dim-inputs input:focus { outline: none; border-color: var(--accent); }
.dim-x { color: var(--text2); font-weight: 600; }
.check-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text1);
  cursor: pointer;
}

/* Button Grid */
.btn-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  border-radius: var(--r1);
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text1);
  font-size: 12px;
  font-weight: 500;
  transition: var(--transition);
}
.tool-btn:hover { background: var(--bg3); color: var(--text0); border-color: var(--border2); }

/* Filter & Enhance Subviews */
.enhance-subview {
  animation: panelSlideUp 0.18s cubic-bezier(0.4,0,0.2,1);
}

.subview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.tuner-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Desktop Filter Grid */
.filter-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tune-mode-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 1px dashed var(--accent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  grid-column: 1 / -1;
  transition: var(--transition);
}
.tune-mode-btn:hover {
  background: var(--accent-dim);
  border-style: solid;
}

.tune-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.filter-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 2px solid transparent;
  cursor: pointer;
  width: 100%;
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--border2); }
.filter-btn.active { border-color: var(--accent); background: var(--accent-dim); }

.filter-btn canvas {
  width: 100%;
  height: 96px;
  border-radius: var(--r1);
  object-fit: cover;
  display: block;
  background: #fff;
}

.filter-btn span {
  font-size: 11px;
  font-weight: 600;
  color: var(--text1);
}
.filter-btn.active span { color: var(--accent); }

/* Desktop Fine Tune Sliders Block */
.desktop-sliders-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg2);
  border-radius: var(--r2);
  border: 1px solid var(--border);
}

/* Fine Tune Option Chips (Mobile Only) */
.tune-options-strip {
  display: none;
}

.tune-chip-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 1px solid var(--border2);
  color: var(--text0);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: var(--transition);
}
.tune-chip-btn:hover {
  background: var(--bg3);
  border-color: var(--accent);
  color: var(--accent);
}
.tune-chip-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* Tuner Control Box */
.tuner-control-box {
  background: var(--bg2);
  padding: 10px 12px;
  border-radius: var(--r2);
  border: 1px solid var(--border);
}

.tuner-hint-text {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 10px;
  color: var(--text2);
  margin-top: 6px;
}

/* Sliders */
.header-action-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.slider-reset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: var(--transition);
}
.slider-reset-btn:hover {
  background: var(--bg3);
  color: var(--accent);
  border-color: var(--border2);
  transform: rotate(-30deg);
}

.sliders-group { display: flex; flex-direction: column; gap: 10px; }
.slider-row { display: flex; align-items: center; gap: 8px; width: 100%; box-sizing: border-box; }
.slider-label { font-size: 11px; font-weight: 500; color: var(--text1); width: 56px; flex-shrink: 0; }
.slider {
  flex: 1;
  min-width: 0;
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--bg4);
  outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.1s;
}
.slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.slider-val { font-size: 11px; font-weight: 600; color: var(--text1); width: 32px; text-align: right; flex-shrink: 0; }

.size-estimate {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  margin-top: 6px;
}

/* Target Max File Size Box */
.target-max-size-box {
  background: var(--bg2);
  padding: 10px 12px;
  border-radius: var(--r2);
  border: 1px solid var(--border);
}

.target-size-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.size-num-input {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--r1);
  color: var(--text0);
  padding: 6px 10px;
  font-size: 12px;
  width: 0;
}
.size-num-input:focus { outline: none; border-color: var(--accent); }

.unit-select-input {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--r1);
  color: var(--text0);
  padding: 6px 8px;
  font-size: 12px;
  cursor: pointer;
}
.unit-select-input:focus { outline: none; border-color: var(--accent); }

/* Format Grid (3x2 Layout) */
.format-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.format-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 4px;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  min-height: 62px;
}
.format-btn:hover { border-color: var(--border2); background: var(--bg3); }
.format-btn.active {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.fmt-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text1);
  transition: var(--transition);
}
.format-btn.active .fmt-icon {
  color: var(--accent);
}

.fmt-badge {
  font-size: 11px;
  font-weight: 800;
  color: var(--text0);
  line-height: 1;
}
.format-btn.active .fmt-badge {
  color: var(--accent);
}

.fmt-sub {
  font-size: 9px;
  color: var(--text2);
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Export Scope Pills */
.export-scope-pills {
  display: flex;
  gap: 5px;
  margin-bottom: 10px;
}

.export-pill {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 7px 6px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--r2);
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text1);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}
.export-pill:hover {
  background: var(--bg3);
  border-color: var(--border2);
  color: var(--text0);
}
.export-pill.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.pill-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--bg4);
  font-size: 10px;
  font-weight: 700;
  color: var(--text0);
}
.export-pill.active .pill-count {
  background: var(--accent);
  color: #fff;
}

/* Visual Page Card Grid */
.page-picker-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  gap: 6px;
  margin-top: 8px;
}

.page-export-card {
  position: relative;
  border-radius: var(--r2);
  border: 2px solid var(--border);
  background: var(--bg3);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
  overflow: hidden;
  aspect-ratio: 3/4;
  display: flex;
  flex-direction: column;
}
.page-export-card:hover {
  border-color: var(--border2);
  transform: translateY(-1px);
}
.page-export-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 4px 12px rgba(34,197,94,.18);
}

.page-export-card canvas {
  width: 100%;
  flex: 1;
  display: block;
  object-fit: cover;
}

.page-export-card-label {
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--text1);
  padding: 3px 2px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.page-export-card.selected .page-export-card-label {
  color: var(--accent);
  background: var(--accent-dim);
}

.page-export-card-check {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg4);
  border: 1.5px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}
.page-export-card.selected .page-export-card-check {
  background: var(--accent);
  border-color: var(--accent);
}
.page-export-card-check svg {
  opacity: 0;
  transition: opacity 0.1s ease;
}
.page-export-card.selected .page-export-card-check svg {
  opacity: 1;
}

.page-select-hint {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  color: var(--text2);
  margin-bottom: 2px;
}

.custom-page-picker {
  margin-top: 6px;
  background: var(--bg2);
  padding: 10px;
  border-radius: var(--r2);
  border: 1px solid var(--border);
}

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

/* Summary Card */
.summary-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text1);
}
.summary-row strong { color: var(--text0); font-weight: 600; }