.disenar-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 16px;
    align-items: start;
    position: relative;
}
@media (max-width: 820px) {
    .disenar-layout { grid-template-columns: 1fr; }
}
/* "Mesa de trabajo" tipo Canva/Figma: superficie neutra con puntos, harto
   aire alrededor, y el lienzo como una "hoja" blanca flotando encima. */
.disenar-canvas .canvas-wrap {
    border-radius: var(--radius);
    padding: 48px;
    background-color: var(--color-bg);
    background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#lienzoSvg {
    display: block;
    width: 100%;
    max-width: 640px;
    height: auto;
    background: #fff;
    box-shadow: 0 4px 24px rgba(24, 24, 27, 0.12);
    border-radius: 4px;
}
#lienzoSvg.preview-mode .guide { display: none; }
#lienzoSvg.preview-mode .placeholder-text { display: none; }
.area-label-tag.guide {
    fill: var(--color-muted);
}
.placeholder-text { opacity: 0.4; }
.disenar-sidebar { display: flex; flex-direction: column; gap: 16px; }
.card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; color: var(--color-muted); margin-bottom: 4px; }
.campo-invalido { border-color: var(--color-error, #dc2626); }
.campo-error { color: var(--color-error, #dc2626); font-size: 12px; margin: 4px 0 0; }
.campo-error[hidden] { display: none; }
.hint { font-size: 12px; color: var(--color-muted); margin: -4px 0 12px; }
.palette { display: flex; flex-wrap: wrap; gap: 6px; }
.palette .swatch {
    width: 24px; height: 24px; border-radius: 6px; padding: 0; cursor: pointer;
    border: 2px solid transparent; box-shadow: inset 0 0 0 1px rgba(0,0,0,.15);
}
.palette .swatch.selected { border-color: var(--color-text); }
.palette-campo { margin-top: 6px; }
.palette-campo .swatch { width: 18px; height: 18px; border-radius: 5px; }
.disenar-canvas .row { margin-top: 8px; }

.variacion-swatches { display: flex; flex-wrap: wrap; gap: 10px; }
.variacion-swatch {
    padding: 0;
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: transparent;
    cursor: pointer;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .15);
}
.variacion-swatch:hover:not(:disabled) { box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .35); }
.variacion-swatch:disabled, .variacion-swatch.variacion-swatch-actual {
    border-color: var(--color-text);
    cursor: default;
}
.variacion-swatch-dot {
    display: block;
    width: 100%; height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c1) 50%, var(--c2) 50%);
}