body { padding: 24px; max-width: 1440px; margin: 0 auto; }
h2 { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 10px; }

.page-shell { display: grid; grid-template-columns: minmax(360px, 440px) minmax(0, 1fr); gap: 18px; align-items: start; }
.control-column,
.preview-column { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.card { background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow-card); }

/* Font inputs */
.folder-picker { margin-bottom: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
.font-rows { display: flex; flex-direction: column; gap: 8px; }
.font-row { display: grid; grid-template-columns: 90px auto minmax(0, 1fr); align-items: center; gap: 8px 10px; padding: 8px 10px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-subtle); min-width: 0; }
.font-label { font-size: 0.8rem; color: var(--text-tertiary); min-width: 0; }
.font-badge { font-size: 0.75rem; color: var(--text-faint); margin-left: 2px; }
.font-file-btn { padding: 5px 12px; border: 1px solid var(--border-default); border-radius: 6px; background: var(--bg-surface); cursor: pointer; font-size: 0.82rem; white-space: nowrap; }
.font-file-btn:hover { background: var(--code-bg); }
.font-filename { font-size: 0.78rem; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.font-filename.empty { color: var(--text-disabled); }

/* Font name */
.settings-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
.settings-block { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field-row { display: flex; align-items: flex-start; gap: 10px; }
.field-label { font-size: 0.82rem; color: var(--text-tertiary); width: 88px; flex-shrink: 0; padding-top: 6px; }
.field-stack { flex: 1; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field-input { flex: 1; width: 100%; max-width: none; padding: 5px 9px; border: 1px solid var(--border-default); border-radius: 6px; font-size: 0.85rem; background: var(--bg-surface); color: var(--text-strong); }
.field-input:focus { outline: none; border-color: var(--accent); box-shadow: var(--shadow-focus); }
.field-textarea { display: block; min-height: 132px; resize: vertical; overflow: auto; line-height: 1.35; }
.field-hint { font-size: 0.75rem; color: var(--text-faint); }

/* Size chips */
.chips { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.chip { display: flex; align-items: center; gap: 4px; padding: 3px 8px 3px 11px; border: 1px solid var(--accent); border-radius: 20px; font-size: 0.8rem; background: var(--bg-accent-tint); color: var(--accent-hover); user-select: none; }
.chip-remove { background: none; border: none; padding: 0; margin: 0; cursor: pointer; color: var(--accent-light); font-size: 0.9rem; line-height: 1; display: flex; align-items: center; }
.chip-remove:hover { color: var(--danger); }
.size-presets { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.size-preset-btn { padding: 3px 10px; border: 1px solid var(--border-default); border-radius: 999px; background: var(--bg-surface); cursor: pointer; font-size: 0.78rem; color: var(--text-secondary); }
.size-preset-btn:hover { background: var(--code-bg); }
.size-preset-btn.active { border-color: var(--accent); background: var(--bg-accent-tint); color: var(--accent-hover); }
.size-add { display: flex; align-items: center; gap: 5px; }
.size-input { width: 52px; padding: 3px 7px; border: 1px solid var(--border-default); border-radius: 6px; font-size: 0.82rem; text-align: center; background: var(--bg-surface); color: var(--text-strong); }
.size-input:focus { outline: none; border-color: var(--accent); }
.size-add-btn { padding: 3px 10px; border: 1px solid var(--border-default); border-radius: 6px; background: var(--bg-surface); cursor: pointer; font-size: 0.8rem; }
.size-add-btn:hover { background: var(--bg-app); }

/* Range checkboxes */
.range-presets { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 8px; }
.range-preset-btn { padding: 3px 10px; border: 1px solid var(--border-default); border-radius: 999px; background: var(--bg-surface); cursor: pointer; font-size: 0.78rem; color: var(--text-secondary); }
.range-preset-btn:hover { background: var(--code-bg); }
.range-preset-btn.active { border-color: var(--accent); background: var(--bg-accent-tint); color: var(--accent-hover); }
.range-hint { margin-bottom: 10px; }
.range-meta { margin-bottom: 10px; }
.range-groups { display: flex; flex-direction: column; gap: 12px; }
.range-group { padding: 10px 12px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-subtle); }
.range-group-title { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--preview-meta); margin-bottom: 8px; }
.range-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 6px 12px; }
.range-item { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--text-strong); cursor: pointer; }
.range-item input { cursor: pointer; }
.range-advanced { margin-top: 10px; padding: 10px 12px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-subtle); }
.range-advanced summary { cursor: pointer; font-size: 0.8rem; color: var(--text-tertiary); user-select: none; }
.range-advanced-body { margin-top: 10px; display: flex; flex-direction: column; gap: 10px; }
.manual-range-help { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--preview-meta); }
.manual-range-rows { display: flex; flex-direction: column; gap: 10px; }
.manual-range-row { display: grid; grid-template-columns: 92px minmax(0, 1fr) minmax(0, 1fr) auto; gap: 8px 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-surface); }
.manual-range-mode { min-width: 0; }
.manual-range-select { width: 100%; padding: 5px 8px; border: 1px solid var(--border-default); border-radius: 6px; font-size: 0.8rem; background: var(--bg-surface); color: var(--text-strong); }
.manual-range-field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.manual-range-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--preview-meta); }
.manual-range-value { display: flex; align-items: center; gap: 6px; min-width: 0; }
.manual-range-prefix { font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; }
.manual-range-input { min-height: 0; width: 100%; min-width: 0; max-width: 10ch; padding-left: 8px; padding-right: 8px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-variant-numeric: tabular-nums; text-transform: uppercase; background: var(--bg-surface); color: var(--text-strong); }
.manual-range-input::placeholder { color: var(--text-disabled); }
.manual-range-field.disabled { opacity: 0.45; }
.manual-range-field.disabled .manual-range-input { background: var(--code-bg); }
.manual-range-preview { grid-column: 2 / 4; grid-row: 2; font-size: 0.76rem; color: var(--text-muted); min-width: 0; }
.manual-range-preview.invalid { color: var(--danger-warn); }
.manual-range-remove { grid-column: 4; grid-row: 1 / span 2; align-self: center; padding: 5px 10px; }
.range-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.range-error { color: var(--danger-warn); }

/* Options row */
.options-row { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-strong); cursor: pointer; }
.options-row input { cursor: pointer; }

/* Actions */
.actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 4px; }

/* Progress */
.progress-wrap { display: none; margin-top: 12px; }
.progress-wrap.visible { display: block; }
.progress-label { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 5px; }
.progress-track { height: 6px; background: var(--bg-muted); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); width: 0%; transition: width 0.1s; border-radius: 3px; }

.status-bar { font-size: 0.8rem; color: var(--text-muted); min-height: 1.2em; margin-top: 8px; }
.status-bar.status-warning { color: var(--danger-warn); font-weight: 600; }
.status-bar.status-error { color: var(--danger-error); font-weight: 600; }
.status-bar.status-ok { color: var(--success); }

/* Preview */
.preview-card { position: sticky; top: 24px; min-height: calc(100vh - 48px); display: flex; flex-direction: column; }
.preview-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 0.76rem; color: var(--preview-meta); margin-bottom: 12px; }
.empty-state { padding: 18px; border: 1px dashed var(--border-default); border-radius: 10px; background: var(--bg-subtle); color: var(--text-muted); font-size: 0.84rem; }
.device-preview-grid { display: none; flex-direction: column; gap: 16px; align-items: stretch; min-width: 0; }
.preview-size-group { display: flex; flex-direction: column; gap: 10px; padding: 12px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-subtle); min-width: 0; }
.preview-size-title { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: var(--preview-meta); }
.preview-style-strip { display: flex; gap: 12px; overflow-x: auto; overflow-y: hidden; padding-bottom: 6px; min-width: 0; scrollbar-gutter: stable; }
.preview-swatch { display: flex; flex-direction: column; gap: 8px; min-width: 0; flex: 0 0 auto; }
.preview-label { font-size: 0.75rem; color: var(--preview-meta); }
.preview-viewport { overflow: auto; max-width: 100%; border: 1px solid var(--border-default); border-radius: 8px; background:
  linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
  linear-gradient(var(--grid-line) 1px, transparent 1px),
  var(--bg-surface);
  background-size: 16px 16px, 16px 16px, auto;
  background-position: -1px -1px, -1px -1px, 0 0; }
.preview-viewport canvas { display: block; }

/* Log */
details.card { padding: 0; overflow: hidden; }
details summary { cursor: pointer; font-size: 0.8rem; color: var(--text-muted); user-select: none; padding: 16px 20px; }
.log-box { background: var(--log-bg); color: var(--log-text); font-family: monospace; font-size: 0.75rem; padding: 12px; max-height: 200px; overflow-y: auto; white-space: pre-wrap; word-break: break-all; border-top: 1px solid var(--log-border); }


@media (max-width: 1100px) {
  .page-shell { grid-template-columns: 1fr; }
  .preview-card { position: static; min-height: 0; }
}

@media (max-width: 700px) {
  body { padding: 16px; }
  .card { padding: 16px; }
  .font-row { grid-template-columns: 1fr; align-items: flex-start; }
  .manual-range-row { grid-template-columns: 1fr; align-items: stretch; }
  .manual-range-mode,
  .manual-range-field,
  .manual-range-preview,
  .manual-range-remove { grid-column: auto; grid-row: auto; }
  .manual-range-remove { justify-self: start; }
  .field-row { flex-direction: column; gap: 6px; }
  .field-label { width: auto; padding-top: 0; }
}