/* Shared image-workspace rules used by Annotate, Trace and Placeholder. */
.control-nav .caption-input { min-height: 5.5rem; resize: vertical; }
.control-nav .surface-preset-label :is(select, input[type="number"]) { min-width: 9rem; }
.surface-preset-label input[type="number"] { min-height: 2.2rem; padding: 0.35rem 0.5rem; border: 1px solid var(--phrond-border); border-radius: 4px; color: var(--phrond-text-primary); background: var(--phrond-btn-bg); }
.control-nav .control-options-row { gap: 0.75rem; }
.control-nav .plain-check-label { font-size: 0.78rem; }
.tool-options { display: grid; gap: 0.55rem; padding-top: 0.15rem; }
.tool-options.is-hidden { display: none; }
.tool-button-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tool-button-grid .button { min-height: 2.4rem; padding: 0.4rem 0.8rem; font-size: 0.85rem; }
.annotation-color-grid { grid-template-columns: repeat(2, 1fr); }
.arrow-geometry-controls { display: grid; gap: 0.45rem; }
.tool-slider { display: grid; grid-template-columns: 5.2rem minmax(0, 1fr) 2.8rem; align-items: center; gap: 0.4rem; color: var(--phrond-text-muted); font-size: 0.7rem; }
.tool-slider input { min-width: 0; width: 100%; max-width: 100%; }
.tool-slider input[type="number"], .control-nav .slider-head input[type="number"] { box-sizing: border-box; min-width: 0; padding: 0.2rem 0.3rem; border: 1px solid var(--phrond-tile-border); border-radius: 4px; color: var(--phrond-text-primary); background: var(--phrond-surface-panel); font: inherit; font-weight: 700; text-align: center; appearance: textfield; }
.tool-slider input[type="number"] { width: 2.8rem; }
.control-nav .slider-head input[type="number"] { width: 3.2rem; font-size: 0.85rem; }
.tool-slider input[type="number"]::-webkit-inner-spin-button, .tool-slider input[type="number"]::-webkit-outer-spin-button, .control-nav .slider-head input[type="number"]::-webkit-inner-spin-button, .control-nav .slider-head input[type="number"]::-webkit-outer-spin-button { appearance: none; margin: 0; }

:is(.control-nav, .workspace-panel, .flourish-color-dialog) :is(button, input, textarea, select, [tabindex]):focus-visible {
  outline: 2px solid var(--annotate-highlight);
  outline-offset: 2px;
}

.annotate-canvas-frame.is-dragging { border-color: var(--phrond-sundial-gold); }
.empty-state { max-width: 430px; padding: 1.5rem 2rem; text-align: center; }
.empty-state h2 { margin: 1rem 0 0.5rem; }
.empty-art { width: min(260px, 80%); margin: auto; color: var(--phrond-border); }
.empty-art svg { width: 100%; fill: none; stroke: currentColor; stroke-width: 2; }
.empty-art .empty-arrow, .empty-art .empty-circle { stroke: var(--annotate-highlight); stroke-width: 3; }
.canvas-wrap { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.canvas-wrap[hidden] { display: none; }
#annotation-canvas { display: block; width: auto; height: auto; max-width: 100%; max-height: 360px; background: #111; box-shadow: 0 12px 40px rgba(0,0,0,0.55); cursor: default; touch-action: none; }
.workspace-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; padding-top: 0.75rem; }
.workspace-actions .button { min-height: 2.4rem; padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.workspace-actions [data-action="export"] { margin-left: auto; }
.canvas-footer { display: flex; justify-content: space-between; gap: 1rem; min-height: 1.2rem; padding-top: 0.55rem; color: var(--phrond-text-muted); font-size: 0.72rem; }

@media (max-width: 820px) {
  .controls-layout { grid-template-columns: minmax(0, 1fr); }
  .control-nav { order: 2; height: auto; }
  .controls-panel-container { order: 1; height: auto; }
  .studio-view.controls-panel:not(.is-hidden) { height: auto; }
  .tool-button-grid .button, [data-action="center-caption"] { min-height: 44px; }
}

@media (max-width: 600px) {
  .page-shell { width: 100%; padding-bottom: 0; }
  .site-header { margin-bottom: 0; }
  .controls-layout { gap: 0; }
  .control-nav, .workspace-panel { border-inline: 0; border-radius: 0; }
  .control-nav { padding: 1rem; }
  .studio-view.controls-panel:not(.is-hidden) { padding: 0 0 0.75rem; }
  .workspace-panel .panel-header { padding: 1rem 1rem 0.75rem; }
  .annotate-canvas-frame { min-height: 0; max-height: none; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
  .canvas-wrap { height: auto; }
  #annotation-canvas { width: 100%; max-height: none; box-shadow: none; }
  .workspace-actions { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)) minmax(0, 1.4fr); gap: 0.2rem; padding: 0.5rem 0.4rem 0; }
  .workspace-actions .button { min-width: 0; min-height: 40px; padding: 0.2rem 0.1rem; font-size: 0.66rem; letter-spacing: 0.02em; white-space: nowrap; }
  .workspace-actions [data-action="export"] { margin-left: 0; }
  .canvas-footer { padding-inline: 0.75rem; }
  .site-footer { padding-inline: 1rem; padding-bottom: 1rem; }
}

@media (max-width: 360px) {
  .site-header { padding-inline: 0.75rem; }
  .brand-title { font-size: 1.8rem; }
  .brand-product-name { font-size: 0.9rem; }
  .workspace-actions .button { font-size: 0.6rem; letter-spacing: 0; }
}