/* ================================
   SYMBOL STRUCTURE — Design Tokens
   ================================ */
:root {
  --primary: #27200f;
  --accent: #5b8597;
  --accent-hover: #7fafc1;
  --bg: #FEF8EF;
  --card-bg: #ffffff;
  --error: #c0392b;
  --muted: #7e6e5e;
  --lavender: #896e8d;
  --lilac: #ab96af;
  --copper: #af8662;
  --radius: 10px;
  --panel-width: 380px;
  --pg-punched: #27200f;
  --pg-blank: #e8ddd0;
  --stitch-count: 24;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--primary);
  padding: 0;
  margin: 0;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ================================
   HEADER — slim top bar
   ================================ */
.sf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28'%3E%3Ccircle cx='14' cy='14' r='3.5' fill='rgba(0%2C0%2C0%2C0.18)'/%3E%3C/svg%3E"),
    linear-gradient(135deg, #27200f 0%, #3b1720 60%, #27200f 100%);
  background-size: 28px 28px, 100% 100%;
  border-bottom: 2px solid var(--copper);
  color: var(--bg);
  flex-shrink: 0;
}
.sf-header-brand { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.sf-logo {
  font-family: 'Workbench', sans-serif;
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  white-space: nowrap;
  color: #D1C5D3;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.sf-tagline {
  font-size: 0.68rem;
  opacity: 0.85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sf-header-actions { display: flex; gap: 4px; flex-shrink: 0; align-items: center; }
.sf-icon-btn {
  background: none;
  border: 1.5px solid rgba(254,248,239,0.25);
  border-radius: 5px;
  color: var(--bg);
  font-size: 0.85rem;
  padding: 3px 7px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, border-color 0.15s;
}
.sf-icon-btn:hover {
  background: rgba(254,248,239,0.12);
  border-color: rgba(254,248,239,0.5);
}

/* ================================
   AUTH BAR
   ================================ */

.sf-auth-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sf-auth-section {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sf-auth-email {
  font-size: 0.7rem;
  opacity: 0.75;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--bg);
}

/* Login dropdown panel */
.sf-login-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--primary);
  border: 1.5px solid var(--copper);
  border-radius: 8px;
  padding: 12px 14px 10px;
  z-index: 300;
  min-width: 290px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
}

.sf-login-form {
  display: flex;
  gap: 6px;
  align-items: center;
}

.sf-login-email-input {
  flex: 1;
  min-width: 0;
  padding: 4px 8px;
  border-radius: 5px;
  border: 1.5px solid rgba(254,248,239,0.3);
  background: rgba(254,248,239,0.08);
  color: var(--bg);
  font-size: 0.8rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}
.sf-login-email-input::placeholder { opacity: 0.45; }
.sf-login-email-input:focus { border-color: var(--copper); }

.sf-login-msg {
  margin: 8px 0 0;
  font-size: 0.73rem;
  color: var(--copper);
  min-height: 1.2em;
}

/* ================================
   BUTTON STYLES (shared)
   ================================ */
.sf-toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  background: var(--bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.sf-toolbar-btn:hover {
  background: var(--copper);
  color: #fff;
  border-color: var(--copper);
}

/* ================================
   MAIN LAYOUT — Full page 3-column
   ================================ */
.sf-main {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* LEFT PANEL — Import tools + Export + Settings */
.sf-left-panel {
  width: var(--panel-width);
  flex-shrink: 0;
  background: var(--card-bg);
  border-right: 1px solid rgba(126,110,94,0.1);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* RIGHT PANEL — Pattern Library (wider) */
.sf-right-panel {
  width: 280px;
  flex-shrink: 0;
  background: var(--card-bg);
  border-left: 1px solid rgba(126,110,94,0.1);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* RESIZE HANDLES — draggable gutter between panels */
.sf-resize-handle {
  width: 5px;
  flex-shrink: 0;
  cursor: col-resize;
  background: transparent;
  position: relative;
  z-index: 10;
  transition: background 0.15s;
}
.sf-resize-handle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3px;
  height: 32px;
  border-radius: 2px;
  background: rgba(126,110,94,0.2);
  transition: background 0.15s, height 0.15s;
}
.sf-resize-handle:hover::after,
.sf-resize-handle.dragging::after {
  background: var(--accent);
  height: 48px;
}
.sf-resize-handle:hover,
.sf-resize-handle.dragging {
  background: rgba(91,133,151,0.08);
}

/* CENTER CANVAS — fills remaining space (narrower) */
.sf-canvas-area {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.sf-canvas-card {
  background: var(--card-bg);
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(126,110,94,0.1);
  box-shadow: 0 1px 4px rgba(39,32,15,0.06);
  width: 100%;
  max-width: 600px;
}

/* ================================
   PANEL SECTIONS (accordion-style)
   ================================ */
.sf-section {
  border-bottom: 1px solid rgba(126,110,94,0.1);
}
.sf-section:last-child { border-bottom: none; }
.sf-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s;
}
.sf-section-header:hover { background: rgba(91,133,151,0.04); }
.sf-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.sf-section-title .sf-sec-icon {
  font-size: 0.9rem;
}
.sf-section-chevron {
  font-size: 0.6rem;
  color: var(--muted);
  transition: transform 0.2s;
}
.sf-section.collapsed .sf-section-chevron {
  transform: rotate(-90deg);
}
.sf-section-body {
  padding: 0 14px 12px;
}
.sf-section.collapsed .sf-section-body {
  display: none;
}

/* ================================
   EMPTY STATE
   ================================ */
.sf-empty-state {
  text-align: center;
  padding: 48px 20px;
}
.sf-empty-icon {
  font-size: 2.5rem;
  color: var(--copper);
  margin-bottom: 12px;
  opacity: 0.5;
}
.sf-empty-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.sf-empty-hint {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 280px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ================================
   INPUT SELECTOR (3-way tab bar)
   ================================ */
.sf-input-selector {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(126,110,94,0.1);
}
.sf-input-selector-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 8px;
}
.sf-input-tabs {
  display: flex;
  gap: 0;
  border: 1.5px solid var(--copper);
  border-radius: 8px;
  overflow: hidden;
}
.sf-input-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 4px;
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: none;
  border-right: 1px solid rgba(175,134,98,0.25);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.sf-input-tab:last-child { border-right: none; }
.sf-input-tab:hover { background: rgba(91,133,151,0.06); color: var(--primary); }
.sf-input-tab.active {
  background: #584056;
  color: var(--bg);
}
.sf-input-tab-icon { font-size: 1rem; line-height: 1; }
.sf-input-tab-text { line-height: 1.2; }

/* Input panel content (below selector) */
.sf-input-panel {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(126,110,94,0.1);
}

/* Panel divider between input area and sections */
.sf-panel-divider {
  height: 0;
  border-top: 2px solid rgba(126,110,94,0.08);
  margin: 0;
}

/* ================================
   CANVAS TOOLBAR (above grid)
   ================================ */
.sf-canvas-toolbar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 0;
  padding: 4px 0 0;
}
.sf-canvas-toolbar-left,
.sf-canvas-toolbar-right {
  display: flex;
  gap: 4px;
  align-items: center;
}
.sf-canvas-toolbar-right { width: 100%; }
.sf-canvas-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 4px 10px;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  background: var(--bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.sf-canvas-tool-btn:hover {
  background: var(--copper);
  color: #fff;
  border-color: var(--copper);
}
.sf-canvas-tool-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.sf-canvas-tool-btn:disabled:hover {
  background: var(--bg);
  color: var(--primary);
}
/* ---- Mode segmented control + panel ---- */
.sf-mode-btns {
  display: flex;
  gap: 0;
  width: 100%;
  border: 1.5px solid var(--copper);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  overflow: hidden;
}
.sf-mode-panel {
  background: var(--bg);
  border: 1.5px solid var(--copper);
  border-top: none;
  border-radius: 0 0 8px 8px;
  padding: 6px 10px 10px;
  margin-bottom: 8px;
}
.sf-mode-btn {
  flex: 1;
  padding: 5px 4px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--muted);
  background: var(--bg);
  border: none;
  border-right: 1px solid rgba(175,134,98,0.25);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  text-align: center;
}
.sf-mode-btn:last-child { border-right: none; }
.sf-mode-btn:hover { background: rgba(91,133,151,0.06); color: var(--primary); }
.sf-mode-btn.active { background: #584056; color: var(--bg); }
/* Punchcard sub-panel (below toolbar when in Punchcard mode) */
.sf-punchcard-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 0 4px;
}
/* New-blank group: number input + button visually joined */
.sf-new-blank-group {
  display: inline-flex;
  align-items: center;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  overflow: hidden;
}
.sf-new-blank-group .sf-canvas-tool-btn {
  border: none;
  border-radius: 0;
}
.sf-new-blank-group .sf-blank-rows-input {
  border-right: 1.5px solid var(--copper);
  border-radius: 0;
}
/* Blank-rows number input in toolbar */
.sf-blank-rows-input {
  width: 52px;
  padding: 3px 6px;
  font-size: 0.75rem;
  font-family: inherit;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  background: var(--bg);
  color: var(--primary);
  text-align: center;
}
/* Columns bar at top of left panel */
.sf-columns-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px 6px;
  background: var(--card-bg);
  border-bottom: 1px solid rgba(0,0,0,0.07);
  flex-shrink: 0;
}
.sf-columns-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}
.sf-columns-input {
  width: 58px;
  padding: 3px 6px;
  font-size: 0.8rem;
  font-family: inherit;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  background: var(--bg);
  color: var(--primary);
  text-align: center;
  font-weight: 600;
}
.sf-columns-hint {
  font-size: 0.68rem;
  color: var(--muted);
  opacity: 0.8;
}

/* ================================
   CANVAS PALETTE (above grid)
   ================================ */
.sf-canvas-palette {
  padding: 4px 0 0;
}
.sf-canvas-palette-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
}

/* ================================
   5× REPEAT PREVIEW (below grid)
   ================================ */
.sf-repeat-preview {
  margin-top: 12px;
  padding: 8px 0 0;
  border-top: 1px solid rgba(126,110,94,0.1);
}
.sf-repeat-preview-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}
.sf-repeat-preview-grid {
  display: grid;
  grid-template-columns: repeat(calc(var(--stitch-count) * 5), 1fr);
  gap: 0;
  max-width: 100%;
  overflow-x: auto;
}
.sf-repeat-preview-grid .rpc {
  aspect-ratio: 1;
  min-width: 2px;
  max-width: 4px;
}

/* ================================
   COMPOSITION SECTION (always visible)
   ================================ */
.sf-comp-section {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(126,110,94,0.12);
}
.sf-comp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}
.sf-comp-header-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
}

/* ================================
   STATUS BAR
   ================================ */
.sf-status-bar {
  padding: 3px 16px;
  font-size: 0.72rem;
  color: var(--muted);
  flex-shrink: 0;
  text-align: center;
  border-top: 1px solid rgba(126,110,94,0.08);
  background: var(--card-bg);
}

/* ================================
   GRID / CANVAS
   ================================ */
#previewGrid {
  display: grid;
  grid-template-columns: repeat(var(--stitch-count), 1fr);
  gap: 1px;
  margin-bottom: 8px;
  max-width: 100%;
  user-select: none;
}
.cell {
  aspect-ratio: 1;
  background: var(--pg-blank);
  border-radius: 2px;
  position: relative;
}
.cell.punched {
  background: var(--pg-punched);
}
.cell .col-num {
  display: none;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  text-align: center;
  pointer-events: none;
  width: 100%;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.show-col-nums .cell.punched .col-num {
  display: block;
}
.cell .punch-dot {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 55%;
  height: 55%;
  border-radius: 50%;
  background: rgba(255,255,255,0.55);
  pointer-events: none;
}
.show-punch-dots .cell.punched .punch-dot {
  display: block;
  background: rgba(255,255,255,0.75);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.6);
}
.cell.editable {
  cursor: pointer;
}
.cell.editable:hover {
  outline: 2px solid var(--lavender);
  outline-offset: -2px;
  z-index: 1;
}
.edit-rows {
  grid-template-columns: auto repeat(var(--stitch-count), 1fr) auto !important;
}
.row-gutter {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: var(--muted);
  min-width: 28px;
  gap: 2px;
  user-select: none;
}
.row-gutter.left {
  justify-content: flex-end;
  padding-right: 3px;
}
.row-gutter.right {
  justify-content: flex-start;
  padding-left: 3px;
}
.row-del-btn, .row-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  font-family: inherit;
}
.row-del-btn {
  background: var(--error);
  color: #fff;
}
.row-del-btn:hover { background: #c0392b; }
.row-add-btn {
  background: var(--accent);
  color: #fff;
}
.row-add-btn:hover { background: #5a8a5e; }

/* Paint mode */
.paint-mode .cell.editable { cursor: crosshair; }
.paint-mode .cell.editable:hover {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
#rowCount {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ================================
   BUTTONS & FORMS
   ================================ */
h1 { margin-bottom: 0; }
label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 500;
}
input[type="file"] { display: none; }
input[type="number"] { font-family: inherit; }
button { font-family: inherit; }
textarea {
  width: 100%;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  padding: 6px;
  border: 1px solid var(--copper);
  border-radius: 6px;
  resize: vertical;
  min-height: 140px;
  background: #fff;
}
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.error {
  color: var(--error);
  font-size: 0.82rem;
  margin-top: 6px;
  white-space: pre-line;
}
.file-btn {
  display: inline-block;
  padding: 6px 12px;
  border: 1.5px solid var(--copper);
  border-radius: 6px;
  background: var(--bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  margin-bottom: 8px;
}
.file-btn:hover {
  background: var(--copper);
  color: #fff;
  border-color: var(--copper);
}
.file-btn:active {
  background: var(--primary);
  color: var(--bg);
  border-color: var(--primary);
}
.file-name {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: 6px;
}
.slider-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.slider-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}
.slider-row span {
  min-width: 28px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-size: 0.82rem;
}
.checkbox-row { margin-bottom: 8px; }
.checkbox-row label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.82rem;
}
.checkbox-row input[type="checkbox"] { accent-color: var(--accent); }
#imageControls { display: none; }
.img-mode-btn {
  flex: 1;
  padding: 6px;
  border: 2px solid var(--primary);
  background: var(--card-bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.img-mode-btn.active {
  background: var(--primary);
  color: var(--bg);
}
#simplePreviewContainer {
  margin-bottom: 8px;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--copper);
  border-radius: 6px;
  position: relative;
}
#simplePreviewContainer img {
  display: block;
  width: 100%;
  height: auto;
}
#simpleGridOverlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
#cropContainer {
  position: relative;
  margin-bottom: 8px;
  touch-action: none;
  user-select: none;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--copper);
  border-radius: 6px;
}
#cropContainer canvas {
  display: block;
  width: 100%;
  height: auto;
}

/* ================================
   EXPORT SECTION (in left panel)
   ================================ */
.sf-export-section { margin-bottom: 4px; }
.sf-export-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.sf-export-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  white-space: nowrap;
  min-width: 55px;
  margin: 0;
}
.sf-export-label.sf-export-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  min-width: auto;
}
.sf-export-label.sf-export-check input { accent-color: var(--accent); }
.sf-export-select {
  flex: 1;
  padding: 5px 6px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  font-size: 0.8rem;
  font-family: inherit;
  background: #fff;
  color: var(--primary);
}
.sf-export-select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.sf-export-input {
  flex: 1;
  padding: 5px 6px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--primary);
}
.sf-export-input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.sf-export-input-sm {
  width: 50px;
  padding: 5px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  font-size: 0.88rem;
  font-family: inherit;
}
.sf-export-input-sm:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.sf-export-divider {
  border: none;
  border-top: 1px solid rgba(126,110,94,0.12);
  margin: 8px 0;
}
.sf-export-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.sf-export-downloads { flex-wrap: wrap; }
.sf-btn-primary {
  padding: 7px 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.sf-btn-primary:hover { background: var(--accent-hover); }
.sf-btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.sf-svg-preview {
  margin: 6px 0;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--copper);
  border-radius: 6px;
  max-height: 160px;
  overflow: auto;
}
.sf-svg-preview svg {
  display: block;
  width: 100%;
  height: auto;
}

#generateBtn {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: background 0.15s;
}
#generateBtn:hover:not(:disabled) { background: var(--accent-hover); }
#generateBtn:disabled { background: #c4b8a8; cursor: not-allowed; }
.dl-btn {
  flex: 1;
  padding: 8px 6px;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 34px;
  transition: background 0.15s;
  background: var(--primary);
  color: var(--bg);
}
.dl-btn:hover:not(:disabled) { background: #3d3422; }
.dl-btn:disabled { background: #c4b8a8; cursor: not-allowed; }

#svgOutput {
  display: none;
}

.hidden { display: none !important; }

/* ================================
   PLAYGROUND FRAGMENTS & LIBRARY
   ================================ */
.frag-thumb {
  display: grid;
  grid-template-columns: repeat(var(--stitch-count), 4px);
  gap: 0;
  margin: 0 auto;
}
.frag-thumb .t {
  width: 4px;
  height: 4px;
}
.frag-thumb .t.p { background: var(--pg-punched); }
.frag-thumb .t.b { background: var(--pg-blank); }
.pg-frag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  margin-bottom: 10px;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 4px;
}
.pg-frag-card {
  background: var(--bg);
  border: 2px solid transparent;
  border-radius: 7px;
  padding: 8px 6px 6px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pg-frag-card:hover {
  border-color: var(--accent);
  background: rgba(91,133,151,0.06);
  box-shadow: 0 1px 4px rgba(39,32,15,0.08);
}
.pg-frag-card:active {
  background: rgba(91,133,151,0.12);
  transform: scale(0.97);
}
.pg-frag-card .frag-thumb {
  justify-self: center;
}
.pg-frag-card .pg-frag-name {
  font-size: 0.68rem;
  color: var(--muted);
  margin-top: 5px;
  line-height: 1.2;
  width: 100%;
}
.pg-cat-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.pg-cat-btn {
  padding: 3px 8px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  background: var(--card-bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
}
.pg-cat-btn.active {
  background: #584056;
  color: var(--bg);
  border-color: #584056;
}
.pg-comp-list {
  min-height: 40px;
  border: 2px dashed var(--copper);
  border-radius: var(--radius);
  padding: 6px;
  margin-bottom: 8px;
}
.pg-comp-empty {
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 6px 0;
}
.pg-comp-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 7px;
  background: var(--bg);
  border: 1px solid rgba(126,110,94,0.15);
  border-radius: 5px;
  margin-bottom: 4px;
}
.pg-comp-top {
  display: flex;
  align-items: center;
  gap: 6px;
}
.pg-comp-top .pg-comp-name {
  flex: 1;
  font-size: 0.78rem;
  font-weight: 500;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pg-comp-top .pg-comp-rows {
  font-size: 0.68rem;
  color: var(--muted);
  white-space: nowrap;
}
.pg-comp-bottom {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 22px;
}
.pg-comp-field {
  font-size: 0.72rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}
.pg-comp-repeat {
  width: 36px;
  padding: 2px;
  border: 1px solid var(--copper);
  border-radius: 4px;
  font-size: 0.78rem;
  text-align: center;
  font-family: inherit;
}
.pg-comp-offset-input {
  width: 36px;
  padding: 2px;
  border: 1px solid var(--copper);
  border-radius: 4px;
  font-size: 0.78rem;
  text-align: center;
  font-family: inherit;
}
.pg-comp-remove {
  background: none;
  border: none;
  color: var(--error);
  font-size: 1rem;
  cursor: pointer;
  padding: 0 3px;
  font-weight: 700;
  line-height: 1;
  margin-left: auto;
}
.pg-comp-drag-handle {
  cursor: grab;
  color: var(--muted);
  font-size: 1rem;
  padding: 2px 3px;
  user-select: none;
  touch-action: none;
  line-height: 1;
  display: flex;
  align-items: center;
}
.pg-comp-drag-handle:hover { color: var(--primary); }
.pg-comp-drag-handle:active { cursor: grabbing; }
.pg-comp-item.dragging { opacity: 0.4; }
.pg-comp-item.drag-over { box-shadow: 0 -2px 0 0 var(--accent); }
.pg-comp-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 8px;
}
.pg-total-rows {
  font-size: 0.82rem;
  color: var(--muted);
}
.pg-clear-btn {
  padding: 5px 10px;
  border: 1.5px solid var(--error);
  border-radius: 5px;
  background: none;
  color: var(--error);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.pg-apply-row {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}
.pg-apply-btn {
  flex: 1;
  padding: 9px 6px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.pg-apply-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pg-replace-btn {
  background: #584056;
}
.pg-comp-color {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--copper);
  border-radius: 3px;
  padding: 1px;
  cursor: pointer;
  background: none;
  flex-shrink: 0;
}
.pg-comp-color::-webkit-color-swatch-wrapper { padding: 0; }
.pg-comp-color::-webkit-color-swatch { border: none; border-radius: 2px; }

/* ================================
   PALETTE
   ================================ */
.pg-palette-section {
  margin: 0;
  padding: 0;
  background: none;
  border-radius: 0;
  border: none;
}
.pg-palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  position: relative;
}
.pg-palette-header h4 {
  font-size: 0.8rem;
  font-weight: 600;
  margin: 0;
}
.pg-palette-add-btn {
  font-size: 0.72rem;
  padding: 3px 8px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  background: var(--card-bg);
  color: var(--primary);
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
}
.pg-palette-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  align-items: center;
}
.pg-palette-swatch {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  border: 2px solid rgba(126,110,94,0.25);
  cursor: pointer;
  transition: transform 0.1s, border-color 0.15s;
}
.pg-palette-swatch:hover {
  transform: scale(1.15);
  border-color: var(--accent);
}
.pg-palette-swatch .pg-swatch-remove {
  display: none;
  position: absolute;
  top: -6px;
  right: -6px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--error);
  color: #fff;
  font-size: 9px;
  line-height: 13px;
  text-align: center;
  border: none;
  cursor: pointer;
  padding: 0;
}
.pg-palette-swatch.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--lavender);
  transform: scale(1.15);
}
.pg-palette-swatch:hover .pg-swatch-remove { display: block; }
.pg-palette-eraser {
  width: 26px;
  height: 26px;
  border-radius: 5px;
  border: 2px solid rgba(126,110,94,0.25);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  background: var(--bg);
  transition: transform 0.1s, border-color 0.15s;
  flex-shrink: 0;
}
.pg-palette-eraser:hover {
  transform: scale(1.15);
  border-color: var(--accent);
}
.pg-palette-eraser.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--lavender);
  transform: scale(1.15);
}
.pg-palette-empty {
  font-size: 0.78rem;
  color: var(--muted);
  font-style: italic;
}
.pg-palette-import { margin-top: 6px; }
.pg-palette-import-toggle {
  font-size: 0.72rem;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  text-decoration: underline;
}
.pg-palette-import-toggle:hover { color: var(--accent-hover); }
.pg-palette-import-area {
  display: none;
  margin-top: 4px;
}
.pg-palette-import-area.open { display: block; }
.pg-palette-import-area textarea {
  width: 100%;
  min-height: 40px;
  max-height: 70px;
  font-size: 0.72rem;
  font-family: 'Courier New', monospace;
  padding: 5px 6px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  resize: vertical;
  background: #fff;
  color: var(--primary);
}
.pg-palette-import-area textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.pg-palette-import-row {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-top: 3px;
}
.pg-palette-import-btn {
  font-size: 0.72rem;
  padding: 3px 10px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
}
.pg-palette-import-btn:hover { background: var(--accent-hover); }
.pg-palette-import-msg {
  font-size: 0.72rem;
  color: var(--muted);
}
.pg-color-popover {
  position: absolute;
  z-index: 100;
  background: var(--card-bg);
  border: 1px solid var(--copper);
  border-radius: 8px;
  padding: 6px;
  box-shadow: 0 4px 16px rgba(39,32,15,0.15);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-width: 180px;
}
.pg-color-popover .pg-pop-swatch {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 2px solid rgba(126,110,94,0.2);
  cursor: pointer;
  transition: transform 0.1s;
}
.pg-color-popover .pg-pop-swatch:hover {
  transform: scale(1.2);
  border-color: var(--accent);
}
.pg-color-popover .pg-pop-custom {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 2px dashed var(--copper);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
}
.pg-color-popover .pg-pop-custom:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ================================
   LIGHTBOX
   ================================ */
#lightboxOverlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 24px;
}
#lightboxContent {
  max-width: 95vw;
  max-height: 95vh;
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(120, 1fr);
  gap: 0;
  background: var(--bg);
  border-radius: 8px;
  cursor: default;
}
#lightboxContent .lbc {
  aspect-ratio: 1;
  min-width: 4px;
}

/* ================================
   LIBRARY SUB-TABS & FRAGMENT ACTIONS
   ================================ */
.sf-subtab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--copper);
  margin-bottom: 10px;
}
.sf-subtab {
  flex: 1;
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.sf-subtab:hover { color: var(--primary); }
.sf-subtab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.sf-subtab-content { /* shown/hidden via JS */ }
.sf-search-input {
  width: 100%;
  padding: 6px 8px;
  margin-bottom: 8px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  font-size: 0.82rem;
  font-family: inherit;
  background: var(--bg);
  color: var(--primary);
}
.sf-search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.sf-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 8px;
  line-height: 1.4;
}

/* Pattern cards — clickable to add to sequence */

/* ================================
   MOBILE PANEL NAV BAR
   (visible only on mobile ≤800px)
   ================================ */
.sf-mobile-nav {
  display: none; /* hidden on desktop */
  flex-shrink: 0;
  background: var(--card-bg);
  border-bottom: 1px solid rgba(126,110,94,0.12);
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.sf-mobile-nav-inner {
  display: flex;
  gap: 0;
  min-width: max-content;
}
.sf-mobile-nav-btn {
  flex: 1;
  padding: 8px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
  text-align: center;
}
.sf-mobile-nav-btn:hover { color: var(--primary); }
.sf-mobile-nav-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.sf-mobile-nav-btn .sf-nav-icon {
  display: block;
  font-size: 1rem;
  margin-bottom: 1px;
}

/* ================================
   TRACE IMAGE OVERLAY
   ================================ */

/* Wrapper that the image is absolutely positioned inside */
#previewGridWrap {
  position: relative;
}

/* The trace image — always pointer-events: none so clicks reach the cells */
#traceImage {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: fill;   /* stretch to match grid dimensions exactly */
  pointer-events: none;
  display: none;
  opacity: 0.45;
  border-radius: 2px;
}

/* Over mode: image floats above the grid */
#previewGridWrap.trace-over #traceImage  { display: block; z-index: 10; }
#previewGridWrap.trace-over #previewGrid { position: relative; z-index: 1; }

/* Under mode: image sits behind, cells become semi-transparent */
#previewGridWrap.trace-under #traceImage  { display: block; z-index: 0; }
#previewGridWrap.trace-under #previewGrid { position: relative; z-index: 1; opacity: 0.65; }


/* ================================
   MOBILE RESPONSIVE
   ================================ */
@media (max-width: 800px) {
  body {
    height: 100dvh;
    overflow: hidden;
  }

  /* Show mobile nav bar, hide resize handles */
  .sf-mobile-nav { display: block; }
  .sf-resize-handle { display: none; }

  .sf-main {
    flex-direction: column;
    overflow: hidden;
    position: relative;
  }

  /* Canvas takes priority — always visible and scrollable */
  .sf-canvas-area {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px;
    order: 0;
  }

  .sf-canvas-card {
    max-width: 100%;
    padding: 10px;
  }

  /* Panels become overlapping drawers on mobile */
  .sf-left-panel,
  .sf-right-panel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--card-bg);
    overflow-y: auto;
    overflow-x: hidden;
    border: none;
    z-index: 50;
    transform: translateY(100%);
    transition: transform 0.25s ease;
    display: flex;
    flex-direction: column;
  }

  .sf-left-panel.mobile-open,
  .sf-right-panel.mobile-open {
    transform: translateY(0);
  }

  /* Mobile panel close button (injected by JS) */
  .sf-mobile-panel-close {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--bg);
    border-bottom: 1px solid rgba(126,110,94,0.12);
    flex-shrink: 0;
  }
  .sf-mobile-panel-close span {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
  }
  .sf-mobile-panel-close button {
    padding: 4px 12px;
    border: 1.5px solid var(--copper);
    border-radius: 6px;
    background: var(--bg);
    color: var(--primary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
  }

  /* Section bodies can scroll on mobile */
  .pg-frag-grid {
    max-height: 300px;
  }

  /* Header */
  .sf-tagline { display: none; }
  .sf-header { padding: 5px 10px; }

  /* Canvas cells — larger touch targets */
  .cell { min-width: 10px; min-height: 10px; }

  /* Status bar */
  .sf-status-bar { padding: 4px 8px; font-size: 0.7rem; }

  /* Input selector — horizontal on mobile */
  .sf-input-tab { padding: 6px 3px; font-size: 0.68rem; }
  .sf-input-tab-icon { font-size: 0.85rem; }

  /* Canvas toolbar wraps on small screens */
  .sf-canvas-toolbar { flex-wrap: wrap; gap: 4px; }
  .sf-canvas-tool-btn { padding: 3px 8px; font-size: 0.72rem; }

  /* Repeat preview smaller on mobile */
  .sf-repeat-preview-grid .rpc { max-width: 3px; }
}

@media (max-width: 500px) {
  .sf-section-header { padding: 8px 10px; }
  .sf-section-body { padding: 0 10px 10px; }
  .sf-input-panel { padding: 10px; }
  .sf-input-selector { padding: 10px; }
  .sf-export-row { flex-direction: column; gap: 3px; align-items: stretch; }
  .sf-export-label { min-width: auto; }
  .pg-frag-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
  .sf-header-actions { gap: 2px; }
  .sf-icon-btn { padding: 2px 5px; font-size: 0.8rem; }
  .sf-mobile-nav-btn { padding: 6px 8px; font-size: 0.68rem; }
  .sf-input-tab { padding: 5px 2px; font-size: 0.65rem; }
}

/* ===== PHASE 2: Selection tool + fragment save dialog ===== */

/* Selection highlight — drawn over selected cells */
.sf-selected { outline: 2px solid var(--copper) !important; outline-offset: -1px; opacity: 0.8; }

/* Crosshair cursor while select tool is active */
#previewGrid.sf-select-active .editable { cursor: crosshair; }

/* Active (pressed) state on the Select button */
#selectFragBtn.active { background: var(--copper); color: var(--primary); }

/* Save Pattern dialog */
.sf-dialog {
  border: 1.5px solid var(--copper);
  border-radius: 10px;
  background: var(--bg);
  color: var(--primary);
  padding: 20px 24px;
  min-width: 300px;
  max-width: 420px;
  margin: auto;
}
.sf-dialog::backdrop { background: rgba(0,0,0,0.45); }
.sf-dialog-title { margin: 0 0 14px; font-size: 1rem; font-weight: 600; color: var(--primary); }
.sf-dialog-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 10px;
}
.sf-dialog-check { flex-direction: row; align-items: center; gap: 8px; }
.sf-dialog-input, .sf-dialog-select {
  padding: 5px 8px;
  border-radius: 5px;
  border: 1.5px solid rgba(39,32,15,0.25);
  background: var(--card-bg);
  color: var(--primary);
  font-size: 0.8rem;
  font-family: inherit;
}
.sf-dialog-actions { display: flex; gap: 8px; margin-top: 14px; }
.sf-dialog-note { font-size: 0.75rem; color: var(--copper); margin-bottom: 10px; }
/* Buttons inside the dialog use dark-on-light styling */
.sf-dialog .sf-icon-btn {
  border-color: rgba(39,32,15,0.25);
  color: var(--primary);
}
.sf-dialog .sf-icon-btn:hover {
  background: rgba(39,32,15,0.06);
  border-color: rgba(39,32,15,0.4);
}

/* ===== PHASE 3+4: Library source/category dropdowns + section headers ===== */

/* Two-dropdown filter row */
.pg-lib-filters {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.sf-lib-select {
  flex: 1;
  padding: 4px 6px;
  border: 1px solid var(--copper);
  border-radius: 5px;
  background: var(--card-bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  appearance: auto;
}
.sf-lib-select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

/* Section headers inside the frag grid (span full width) */
.pg-section-header {
  grid-column: 1 / -1;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--copper);
  padding: 6px 0 2px;
  border-bottom: 1px solid rgba(195,130,80,0.25);
  margin-bottom: 2px;
}

/* Empty-state message inside the frag grid */
.pg-empty-msg {
  grid-column: 1 / -1;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  padding: 16px 8px;
  line-height: 1.5;
}

/* User-saved fragment cards — subtle left accent */
.pg-frag-card--user {
  border-left: 2px solid var(--copper);
}

/* Community fragment cards — subtle left accent in accent colour */
.pg-frag-card--community {
  border-left: 2px solid var(--accent);
}

/* ===== PHASE 5: Footer slim link bar ===== */
.sf-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 5px 16px;
  background: var(--primary);
  border-top: 1px solid rgba(175,134,98,0.15);
  font-size: 0.65rem;
}
.sf-footer-link {
  color: var(--bg);
  text-decoration: none;
  opacity: 0.5;
  letter-spacing: 0.02em;
  transition: opacity 0.15s, color 0.15s;
}
.sf-footer-link:hover { opacity: 1; color: var(--copper); }
.sf-footer-sep { color: var(--bg); opacity: 0.25; }

/* ================================
   MODE HINT BAR
   ================================ */
.sf-mode-hint {
  font-size: 0.7rem;
  color: var(--muted);
  text-align: center;
  padding: 3px 8px 2px;
  min-height: 1.5em;
  font-style: italic;
}

/* ================================
   LOGIN PANEL ADDITIONS
   ================================ */
.sf-login-value {
  font-size: 0.73rem;
  color: rgba(254,248,239,0.7);
  line-height: 1.45;
  margin-bottom: 10px;
}
.sf-login-terms {
  margin: 8px 0 0;
  font-size: 0.68rem;
  color: rgba(254,248,239,0.4);
}
.sf-login-terms-link {
  color: var(--copper);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ================================
   SAVE DIALOG — PREVIEW
   ================================ */
.sf-dialog-preview-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.sf-dialog-preview {
  border-radius: 4px;
  border: 1px solid rgba(39,32,15,0.15);
  background: rgba(39,32,15,0.04);
  image-rendering: pixelated;
  flex-shrink: 0;
}
.sf-dialog-dims {
  font-size: 0.73rem;
  color: rgba(39,32,15,0.5);
}

.sf-new-blank-row { margin-bottom: 8px; }

/* Setup heading above Columns input */
.sf-setup-heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 0 0 4px;
  padding: 0;
}

/* Corner handles on the selection rectangle */
#previewGrid .editable { position: relative; }
.sf-corner-handle {
  position: absolute;
  width: 8px; height: 8px;
  background: var(--copper);
  border-radius: 2px;
  z-index: 3;
  pointer-events: none;
}
.sf-corner-handle.tl { top: -1px;    left: -1px;  }
.sf-corner-handle.tr { top: -1px;    right: -1px; }
.sf-corner-handle.bl { bottom: -1px; left: -1px;  }
.sf-corner-handle.br { bottom: -1px; right: -1px; }

/* ================================
   USERNAME PICKER DIALOG
   ================================ */
.sf-username-dialog {
  max-width: 360px;
}

/* ================================
   PNG EXPORT DIALOG
   ================================ */
.sf-png-dialog {
  max-width: 380px;
}
.sf-png-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--copper);
  margin-bottom: 8px;
}
.sf-png-gauge-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 6px;
}
.sf-png-gauge-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.sf-png-gauge-label {
  font-size: 0.78rem;
  color: var(--muted);
}
.sf-png-gauge-sep {
  font-size: 1rem;
  color: var(--muted);
  padding-bottom: 6px;
  flex-shrink: 0;
}
.sf-png-num {
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}
.sf-png-aspect-note {
  font-size: 0.75rem;
  color: var(--copper);
  margin: 0 0 4px;
  min-height: 1.1em;
}

.sf-dialog-body {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 14px;
}

.sf-username-input-row {
  display: flex;
  align-items: center;
  border: 1.5px solid rgba(39,32,15,0.25);
  border-radius: 5px;
  background: var(--card-bg);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.sf-username-input-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(91,133,151,0.12);
}

.sf-username-prefix {
  padding: 5px 4px 5px 8px;
  font-size: 0.85rem;
  color: var(--muted);
  user-select: none;
  flex-shrink: 0;
}

.sf-username-input {
  border: none !important;
  box-shadow: none !important;
  background: transparent !important;
  padding: 5px 8px 5px 2px;
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
}
.sf-username-input:focus { outline: none; }

.sf-username-status {
  display: block;
  font-size: 0.75rem;
  min-height: 1.2em;
  margin-top: 5px;
  color: var(--muted);
}
.sf-username-valid   { color: #2e7d32; }
.sf-username-invalid { color: #c0392b; }

/* ================================
   SAVE DIALOG — NEW FIELDS
   ================================ */
.sf-save-dialog {
  max-height: 90dvh;
  overflow-y: auto;
}

.sf-dialog-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sf-dialog-creator {
  font-size: 0.7rem;
  color: var(--muted);
  font-style: italic;
}

.sf-label-hint {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--muted);
  margin-left: 4px;
}

.sf-dialog-textarea {
  width: 100%;
  padding: 5px 8px;
  border: 1.5px solid rgba(39,32,15,0.25);
  border-radius: 5px;
  background: var(--card-bg);
  color: var(--primary);
  font-family: inherit;
  font-size: 0.82rem;
  line-height: 1.45;
  resize: vertical;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.sf-dialog-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(91,133,151,0.1);
}

.sf-dialog-fieldset {
  border: 1px solid rgba(175,134,98,0.25);
  border-radius: 5px;
  padding: 8px 10px 6px;
  margin-bottom: 10px;
}

.sf-dialog-legend {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--copper);
  padding: 0 4px;
}

.sf-check-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 6px;
}

.sf-check-group label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--primary);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.sf-check-group label input[type=checkbox] {
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

/* ================================
   PATTERN CARD — CHIPS & ATTRIBUTION
   ================================ */
.pg-frag-collection {
  font-size: 0.62rem;
  color: var(--copper);
  margin-top: 2px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  opacity: 0.85;
}

.pg-frag-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3px;
  margin-top: 3px;
  max-width: 100%;
}

.pg-chip {
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(91,133,151,0.1);
  border-radius: 3px;
  padding: 1px 5px;
  white-space: nowrap;
}

.pg-frag-by {
  font-size: 0.6rem;
  color: var(--muted);
  margin-top: 3px;
  text-align: center;
  opacity: 0.75;
}

/* ================================
   AUTH BAR — MANAGE LINK
   ================================ */
.sf-manage-link {
  text-decoration: none;
}