/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #1c1c1c;
  --bg2:      #242424;
  --bg3:      #2e2e2e;
  --bg4:      #383838;
  --border:   #3a3a3a;
  --accent:   #c8a96e;
  --accent2:  #a07840;
  --text:     #e8e4de;
  --dim:      #888;
  --dim2:     #555;
  --success:  #5a9e6a;
  --top-h:    44px;
  --tool-w:   50px;
  --panel-w:  272px;
  --status-h: 26px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 12px;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  user-select: none;
}

/* ── Top Bar ─────────────────────────────────────────────────── */
#topbar {
  height: var(--top-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 14px;
  -webkit-app-region: drag;
  gap: 10px;
  flex-shrink: 0;
}
#topbar > * { -webkit-app-region: no-drag; }
#topbar-left  { display: flex; align-items: center; gap: 8px; min-width: 220px; }
#topbar-center{ display: flex; align-items: center; gap: 5px; flex: 1; justify-content: center; }
#topbar-right { min-width: 280px; text-align: right; font-size: 10px; color: var(--dim); display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-shrink: 0; }

.app-logo  { color: var(--accent); font-size: 18px; }
.app-name  { font-weight: 700; font-size: 13px; letter-spacing: 0.3px; }
.app-brand { font-size: 10px; color: var(--dim); }
.file-menu-item {
  padding: 8px 16px; font-size: 12px; color: #ddd; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.file-menu-item:hover { background: #3a3a3a; }
.file-menu-item .shortcut {
  font-size: 10px; color: #666; margin-left: 24px; font-family: system-ui;
}

.tb-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 13px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  transition: all 0.12s;
  white-space: nowrap;
}
.tb-btn:hover { background: var(--bg4); border-color: #555; }
.tb-btn:disabled { opacity: 0.35; cursor: default; pointer-events: none; }
.tb-btn.active, .tb-btn.view-btn.active { background: var(--accent2); border-color: var(--accent); color: #fff; }
.tb-btn.accent { background: var(--accent); border-color: var(--accent); color: #1a1a1a; font-weight: 700; }
.tb-btn.accent:hover { background: #d4b87a; }
.tb-sep { width: 1px; height: 22px; background: var(--border); flex-shrink: 0; }

/* ── Layout ──────────────────────────────────────────────────── */
#app-layout {
  display: flex;
  height: calc(100vh - var(--top-h) - var(--status-h));
  overflow: hidden;
}

/* ── Toolbox ─────────────────────────────────────────────────── */
#toolbox {
  width: var(--tool-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center;
  padding: 10px 0;
  gap: 3px;
  overflow-y: auto;
  flex-shrink: 0;
}
.tool-section-label {
  font-size: 8px; letter-spacing: 1.2px; color: var(--dim2);
  margin: 6px 0 3px; text-align: center;
}
.tool-btn {
  width: 36px; height: 36px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--dim);
  cursor: pointer;
  font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.12s;
}
.tool-btn:hover { background: var(--bg3); color: var(--text); border-color: var(--border); }
.tool-btn.active { background: var(--accent2); color: #fff; border-color: var(--accent); }
.tool-sep { width: 30px; height: 1px; background: var(--border); margin: 4px 0; }
.brush-display {
  font-size: 10px; color: var(--accent);
  font-weight: 700; font-family: monospace;
  min-width: 20px; text-align: center;
}
#brush-size {
  width: 34px;
  writing-mode: vertical-lr;
  direction: rtl;
  accent-color: var(--accent);
  cursor: pointer;
  height: 60px;
}

/* ── Canvas Area ─────────────────────────────────────────────── */
#canvas-area {
  flex: 1;
  background: #111;
  overflow: hidden;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}

/* Upload Screen */
#upload-screen {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
#upload-box {
  border: 2px dashed var(--border);
  border-radius: 18px;
  padding: 50px 70px;
  display: flex; flex-direction: column; align-items: center;
  gap: 12px; text-align: center;
  transition: border-color 0.2s, background 0.2s;
  max-width: 520px;
}
#upload-box.drag-over { border-color: var(--accent); background: rgba(200,169,110,0.05); }
.upload-icon  { font-size: 44px; color: var(--accent); }
.upload-title { font-size: 20px; font-weight: 700; color: var(--text); }
.upload-sub   { color: var(--dim); font-size: 13px; }
#btn-browse {
  background: var(--accent); border: none; color: #1a1a1a;
  padding: 10px 30px; border-radius: 8px;
  font-size: 13px; font-weight: 700; cursor: pointer;
  transition: background 0.12s;
}
#btn-browse:hover { background: #d4b87a; }
.upload-or { font-size: 11px; color: var(--dim2); }
.url-row { display: flex; gap: 8px; width: 100%; }
#url-input {
  flex: 1; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); padding: 8px 12px; font-size: 12px; outline: none;
}
#url-input:focus { border-color: var(--accent); }
#btn-fetch {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 8px 16px;
  border-radius: 6px; cursor: pointer; font-size: 12px;
}
#btn-fetch:hover { border-color: var(--accent); color: var(--accent); }
.upload-hint { font-size: 10px; color: var(--dim2); }

/* Canvas wrap */
#canvas-wrap {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  overflow: auto; padding: 20px;
}
#main-canvas {
  display: block;
  box-shadow: 0 4px 32px rgba(0,0,0,0.6);
  cursor: crosshair;
  transform-origin: center center;
}

/* ── Right Panels ────────────────────────────────────────────── */
#panels {
  width: var(--panel-w);
  height: 100%;
  max-height: calc(100vh - var(--top-h) - var(--status-h));
  background: var(--bg2);
  border-left: 1px solid var(--border);
  display: block;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  flex-shrink: 0;
}
.panel { border-bottom: 1px solid var(--border); }
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px 8px;
  cursor: pointer;
}
.panel-title {
  font-size: 9px; letter-spacing: 1.5px; font-weight: 700;
  color: var(--dim); text-transform: uppercase;
  display: flex; align-items: center; gap: 6px;
}
.panel-count {
  background: var(--accent2); color: #fff;
  font-size: 9px; padding: 1px 5px; border-radius: 8px;
  font-weight: 700; letter-spacing: 0;
}
.panel-toggle { background: none; border: none; color: var(--dim); cursor: pointer; font-size: 11px; }
.panel-body   { padding: 0 12px 12px; }
.panel.collapsed .panel-body { display: none; }
.panel.collapsed .panel-toggle { transform: rotate(-90deg); }

/* Form rows */
.form-row {
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 8px; margin-bottom: 6px;
}
.form-row label { color: var(--dim); font-size: 11px; white-space: nowrap; min-width: 80px; }
.form-row input[type="text"],
.form-row input[type="number"],
.form-row select {
  flex: 1; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 4px;
  color: var(--text); padding: 5px 8px;
  font-size: 11px; outline: none; min-width: 0;
}
.form-row input:focus, .form-row select:focus { border-color: var(--accent); }
.form-divider { height: 1px; background: var(--border); margin: 10px 0 6px; }
.form-section-label { font-size: 8px; letter-spacing: 1.2px; color: var(--dim2); margin-bottom: 8px; font-weight: 700; }
.form-info {
  font-size: 10px; color: var(--accent); background: var(--bg3);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 6px 8px; margin-bottom: 6px; font-family: monospace;
  line-height: 1.5;
}

/* Panel toolbar */
.panel-toolbar {
  display: flex; gap: 6px; margin-bottom: 10px; align-items: center;
}
.sm-btn {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 5px 10px; border-radius: 5px;
  font-size: 11px; cursor: pointer; font-weight: 500; white-space: nowrap;
  transition: all 0.12s;
}
.sm-btn:hover { background: var(--bg4); border-color: #555; }
.sm-btn.accent { background: var(--accent); border-color: var(--accent); color: #1a1a1a; font-weight: 700; }
.sm-btn.accent:hover { background: #d4b87a; }
.sm-btn.full  { width: 100%; text-align: center; }
.mt8 { margin-top: 8px; }

/* Colour tab rows */
#colour-tabs-list, #prod-tabs-list {
  display: flex; flex-direction: column; gap: 4px;
}
.colour-tab-row {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 8px; border-radius: 6px;
  border: 1px solid transparent; cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.colour-tab-row:hover  { border-color: var(--border); background: var(--bg3); }
.colour-tab-row.active { border-color: var(--accent); background: rgba(200,169,110,0.08); }
.tab-number {
  font-size: 9px; font-weight: 700; color: var(--dim2);
  min-width: 18px; text-align: center;
}
.tab-swatch {
  width: 28px; height: 28px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.1); flex-shrink: 0;
  cursor: pointer; transition: transform 0.1s;
}
.tab-swatch:hover { transform: scale(1.1); }
.tab-meta { flex: 1; min-width: 0; }
.tab-code  { font-size: 10px; font-family: monospace; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tab-name  { font-size: 10px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tab-pct   { font-size: 10px; color: var(--accent); font-weight: 600; }
.tab-layer { font-size: 8px; padding: 1px 4px; border-radius: 3px; font-weight: 700; letter-spacing: 0.5px; }
.tab-layer.base { background: var(--bg3); color: var(--dim); }
.tab-layer.texture { background: rgba(200,169,110,0.2); color: var(--accent); }
.tab-material {
  font-size: 9px; color: var(--dim2);
  background: var(--bg3); padding: 2px 5px;
  border-radius: 3px; white-space: nowrap;
}
.tab-del { background: none; border: none; color: var(--dim2); cursor: pointer; font-size: 14px; padding: 2px; }
.tab-del:hover { color: #d06060; }

/* Production tab rows */
.prod-tab-row {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  margin-bottom: 6px;
  background: var(--bg3);
}
.prod-tab-header {
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
}
.prod-swatch {
  width: 22px; height: 22px; border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.15); flex-shrink: 0;
}
.prod-tab-num { font-size: 10px; font-weight: 700; color: var(--accent); }
.prod-tab-pct { font-size: 10px; color: var(--dim); margin-left: auto; }
.prod-tab-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 26px; height: 22px; padding: 0 6px;
  background: var(--accent); color: #fff;
  font-size: 11px; font-weight: 700; border-radius: 3px;
  flex-shrink: 0;
}
.prod-drag-handle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; font-size: 11px; color: var(--dim2);
  cursor: grab; user-select: none; flex-shrink: 0;
  letter-spacing: -2px;
}
.prod-drag-handle:hover { color: var(--text); }
.prod-tab-row { transition: background-color 0.12s; }
.prod-tab-row.dragging { opacity: 0.4; }
.prod-tab-row.drag-over-top    { box-shadow: inset 0 2px 0 var(--accent); }
.prod-tab-row.drag-over-bottom { box-shadow: inset 0 -2px 0 var(--accent); }
.prod-tab-mix {
  font-size: 10px; color: var(--text);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 3px; padding: 3px 6px; margin-bottom: 4px;
  font-family: monospace;
}
.prod-tab-ply-row {
  display: flex; align-items: center; gap: 4px;
  font-size: 10px; color: var(--dim); font-family: monospace;
}
.prod-ply-input {
  background: var(--bg); border: 1px solid var(--border); border-radius: 3px;
  color: var(--text); font-size: 10px; font-family: monospace;
  padding: 2px 5px; width: 90px; outline: none;
}
.prod-ply-input:focus { border-color: var(--accent); }
.prod-density { color: var(--dim2); }
.prod-mix-visual {
  display: flex; gap: 4px; margin-bottom: 4px; flex-wrap: wrap;
}
.mix-part {
  display: flex; align-items: center; gap: 3px;
  background: var(--bg); border-radius: 3px; padding: 2px 5px;
}
.mix-swatch {
  width: 14px; height: 14px; border-radius: 2px;
  border: 1px solid rgba(255,255,255,0.15); flex-shrink: 0;
}
.mix-ply-label { font-size: 9px; color: var(--text); font-weight: 600; font-family: monospace; }
.mix-ratio { font-size: 9px; color: var(--dim); font-family: monospace; }
.prod-tab-summary { font-size: 10px; color: var(--dim); font-family: monospace; margin-top: 2px; }
.prod-tab-actions { display: flex; gap: 4px; margin-top: 4px; }
.prod-tab-actions .sm-btn { font-size: 9px !important; padding: 3px 6px !important; flex: 1; }
.prod-isolate-btn { background: var(--bg) !important; }
.prod-merge-btn { background: var(--bg) !important; }
.prod-merge-btn.merge-source { background: #c04040 !important; color: #fff !important; border-color: #c04040 !important; }
.prod-merge-btn.merge-target { background: var(--accent) !important; color: #1a1a1a !important; border-color: var(--accent) !important; font-weight: 700 !important; }
.prod-tab-row.isolated { border-color: var(--accent) !important; background: rgba(200,169,110,0.08); }
.prod-tab-row.isolated .prod-isolate-btn { background: var(--accent2) !important; color: #fff !important; }

.palette-picker-row {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
}
.palette-picker-row label { color: var(--dim); font-size: 11px; }
.palette-picker-row select {
  flex: 1; background: var(--bg3); border: 1px solid var(--border); border-radius: 5px;
  color: var(--text); padding: 6px 10px; font-size: 11px; outline: none;
}

/* Prod tab pile options */
.prod-pile-row {
  display: flex; gap: 6px; margin-top: 4px; align-items: center;
}
.prod-pile-row label { font-size: 9px; color: var(--dim); }
.prod-pile-row select, .prod-pile-row input[type="number"] {
  background: var(--bg); border: 1px solid var(--border); border-radius: 3px;
  color: var(--text); font-size: 10px; padding: 2px 4px; outline: none; flex: 1; min-width: 0;
}

/* Mix entries — colour dropdown + ply builder */
.prod-mix-entries {
  display: flex; flex-direction: column; gap: 3px;
  margin-top: 4px; margin-bottom: 4px;
}
.mix-entry {
  display: flex; align-items: center; gap: 4px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; padding: 3px 4px;
}
.mix-entry-swatch {
  width: 20px; height: 20px; border-radius: 3px; flex-shrink: 0;
  border: 1px solid rgba(255,255,255,0.15);
}
.mix-entry-colour {
  flex: 1; min-width: 0;
  background: var(--bg3); border: 1px solid var(--border); border-radius: 3px;
  color: var(--text); font-size: 10px; padding: 2px 4px; outline: none;
  font-family: monospace;
}
.mix-entry-colour:focus { border-color: var(--accent); }
.mix-entry-ply {
  width: 40px; flex-shrink: 0;
  background: var(--bg3); border: 1px solid var(--border); border-radius: 3px;
  color: var(--text); font-size: 10px; padding: 2px 4px; outline: none;
  text-align: center; font-family: monospace;
}
.mix-entry-ply:focus { border-color: var(--accent); }
.mix-entry-ratio {
  min-width: 32px; text-align: right;
  font-size: 9px; color: var(--accent); font-family: monospace; font-weight: 600;
}
.mix-entry-remove {
  width: 18px; height: 18px; flex-shrink: 0;
  background: transparent; border: none; color: var(--dim2); cursor: pointer;
  font-size: 14px; padding: 0; line-height: 1;
}
.mix-entry-remove:hover { color: #d06060; }
.mix-entry-empty {
  font-size: 10px; color: var(--dim2); font-style: italic;
  text-align: center; padding: 6px;
}

/* Mix Add Modal rows */
.mix-add-row {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border-radius: 5px;
  border: 1px solid transparent; cursor: pointer;
  transition: all 0.1s;
}
.mix-add-row:hover { background: var(--bg3); border-color: var(--border); }
.mix-add-row.selected { background: rgba(200,169,110,0.15); border-color: var(--accent); }
.mix-add-row input[type="checkbox"] { accent-color: var(--accent); }
.mix-add-swatch {
  width: 24px; height: 24px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.15); flex-shrink: 0;
}
.mix-add-num { font-size: 10px; color: var(--accent); font-weight: 700; font-family: monospace; min-width: 28px; }
.mix-add-code { font-size: 11px; font-family: monospace; color: var(--text); min-width: 90px; }
.mix-add-name { font-size: 11px; color: var(--dim); flex: 1; }
.mix-add-mat { font-size: 10px; color: var(--dim2); }
.prod-mix-edit-row {
  display: flex; gap: 4px; align-items: center; margin-bottom: 4px;
}
.prod-mix-label { font-size: 10px; color: var(--dim); flex-shrink: 0; }
.prod-mix-input {
  flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: 3px;
  color: var(--text); font-size: 10px; font-family: monospace;
  padding: 3px 6px; outline: none; min-width: 0;
}
.prod-mix-input:focus { border-color: var(--accent); }
.prod-mix-apply {
  padding: 3px 8px !important; font-size: 9px !important;
  background: var(--accent2) !important; border-color: var(--accent) !important;
  color: #fff !important;
}

/* ── Status Bar ──────────────────────────────────────────────── */
#statusbar {
  height: var(--status-h);
  background: var(--bg2);
  border-top: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 12px; gap: 12px;
  flex-shrink: 0;
}
#status-msg   { flex: 1; font-size: 11px; color: var(--dim); }
#status-right { display: flex; align-items: center; gap: 8px; font-size: 10px; }
#status-level { color: var(--accent); font-weight: 700; background: var(--bg3); padding: 1px 6px; border-radius: 3px; font-size: 9px; letter-spacing: 0.5px; }
#status-technique { color: var(--dim); font-size: 10px; }
#status-ppi   { color: var(--accent); font-weight: 600; }
#status-grid  { color: var(--text); font-family: monospace; font-size: 10px; }
#status-size  { color: var(--dim); }
#status-zoom  { color: var(--text); font-weight: 600; min-width: 38px; text-align: right; }
.status-sep   { color: var(--dim2); }

/* ── Modal ───────────────────────────────────────────────────── */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal.hidden { display: none; }
.modal-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  width: 420px; max-height: 80vh;
  display: flex; flex-direction: column; gap: 12px;
}
.modal-box.wide { width: 520px; }
.modal-title { font-size: 14px; font-weight: 700; color: var(--text); }
.modal-search-row input {
  width: 100%; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); padding: 8px 12px; font-size: 12px; outline: none;
}
.modal-search-row input:focus { border-color: var(--accent); }
#pantone-results {
  flex: 1; overflow-y: auto; max-height: 280px;
  display: flex; flex-direction: column; gap: 3px;
}
.pantone-result-row {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 8px; border-radius: 5px; cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.1s;
}
.pantone-result-row:hover { background: var(--bg3); border-color: var(--border); }
.pantone-result-row.selected { background: rgba(200,169,110,0.15); border-color: var(--accent); }
.pantone-chk { accent-color: var(--accent); margin-right: 4px; }
.pantone-swatch { width: 28px; height: 28px; border-radius: 4px; border: 1px solid rgba(255,255,255,0.1); flex-shrink: 0; }
.pantone-code   { font-size: 11px; font-family: monospace; color: var(--text); min-width: 110px; }
.pantone-name   { font-size: 11px; color: var(--dim); }
.modal-custom { border-top: 1px solid var(--border); padding-top: 10px; }
.modal-custom-label { font-size: 10px; color: var(--dim); margin-bottom: 6px; }
.modal-custom-row { display: flex; gap: 8px; align-items: center; }
#custom-colour-picker { width: 36px; height: 36px; border: none; border-radius: 4px; padding: 2px; cursor: pointer; background: none; }
#custom-colour-hex {
  flex: 1; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 5px;
  color: var(--text); padding: 6px 8px; font-size: 12px; outline: none;
  font-family: monospace;
}
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--border); padding-top: 10px; }

/* Generate modal */
.gen-options { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.gen-section-label { font-size: 9px; letter-spacing: 1.2px; font-weight: 700; color: var(--dim); margin-top: 6px; margin-bottom: 4px; text-transform: uppercase; }
.check-row { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 12px; color: var(--text); }
.check-row input[type="checkbox"] { accent-color: var(--accent); }
.gen-sample { display: flex; flex-direction: column; gap: 6px; }
.gen-sample-label { font-size: 10px; color: var(--dim); }
#gen-samples {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text);
  padding: 8px; font-size: 11px; resize: none; outline: none;
  font-family: monospace;
}
#gen-samples:focus { border-color: var(--accent); }

/* ── Loading ─────────────────────────────────────────────────── */
#loading-overlay {
  position: fixed; inset: 0;
  background: rgba(28,28,28,0.88);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 16px; z-index: 200;
}
#loading-overlay.hidden { display: none; }
.spinner {
  width: 38px; height: 38px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading-msg { color: var(--text); font-size: 13px; }

/* ── Scrollbars ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

select option { background: var(--bg3); }

/* ── Chat Panel ─────────────────────────────────────────────── */
#chat-panel {
  position: fixed;
  bottom: var(--status-h);
  right: 0;
  width: 380px;
  height: 420px;
  background: var(--bg2);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column;
  z-index: 90;
  border-top-left-radius: 10px;
  box-shadow: -4px -4px 20px rgba(0,0,0,0.4);
}
#chat-panel.hidden { display: none; }
#chat-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
#chat-title { font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: 0.5px; }
#btn-chat-close {
  background: none; border: none; color: var(--dim); cursor: pointer;
  font-size: 16px; padding: 2px 4px;
}
#btn-chat-close:hover { color: var(--text); }

#chat-messages {
  flex: 1; overflow-y: auto; padding: 12px;
  display: flex; flex-direction: column; gap: 10px;
}
.chat-msg { display: flex; }
.chat-msg.user { justify-content: flex-end; }
.chat-msg.assistant { justify-content: flex-start; }
.chat-bubble {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.5;
}
.chat-msg.user .chat-bubble {
  background: var(--accent2);
  color: #fff;
  border-bottom-right-radius: 3px;
}
.chat-msg.assistant .chat-bubble {
  background: var(--bg3);
  color: var(--text);
  border-bottom-left-radius: 3px;
}
.chat-msg.system .chat-bubble {
  background: rgba(90,158,106,0.15);
  color: var(--success);
  border-radius: 6px;
  font-size: 11px;
  font-style: italic;
  max-width: 100%;
}
.chat-typing {
  color: var(--dim); font-size: 11px; font-style: italic;
  padding: 4px 0;
}

#chat-input-row {
  display: flex; gap: 6px; padding: 10px 12px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
#chat-input {
  flex: 1; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); padding: 8px 10px; font-size: 12px; outline: none;
}
#chat-input:focus { border-color: var(--accent); }
#btn-chat-send {
  background: var(--accent); border: none; color: #1a1a1a;
  padding: 8px 16px; border-radius: 6px;
  font-size: 12px; font-weight: 700; cursor: pointer;
}
#btn-chat-send:hover { background: #d4b87a; }
#btn-chat-send:disabled { opacity: 0.5; cursor: default; }

#chat-api-row {
  padding: 4px 12px 8px;
  flex-shrink: 0;
}

#btn-chat-toggle.active {
  background: var(--accent2); border-color: var(--accent); color: #fff;
}