:root{
  --canvas-bg:#ffffff;
  --border:#cccccc;
}
.theme-default{
  --backgroundP:#ffffff;
  --color1:#0073EE; --color2:#4E95D9; --color3:#A6CAEC; --color4:#DCEAF7; --color5:#D9D9D9;
}

/* Layout base */
#wrapper{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;font-family:Arial,sans-serif;padding:16px 0;background:transparent}
#canvas{background:var(--canvas-bg);border:2px solid var(--border);display:flex;align-items:center;justify-content:center}
.r169{width:80vmin;height:45vmin}

/* Cabecera selector */
#themeHeader{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;width:100%}
#themeGallery{flex:1;max-height:15vh;overflow-y:auto;display:grid;gap:16px;grid-template-columns:repeat(4,1fr);padding:8px 0}
.theme-actions{flex:0 0 auto;display:flex;align-items:flex-start}
.btn{padding:10px 16px;border:1px solid #c9c9c9;border-radius:10px;background:#f5f5f5;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.btn:hover{background:#eee}
.theme-card{cursor:pointer;user-select:none;text-align:center}
.theme-card .swatch{height:28px;display:flex;border-radius:9999px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.15)}
.theme-card .swatch span{flex:1}
.theme-card .name{margin-top:6px;font-size:14px}
.theme-card.active .swatch{outline:2px solid #00000022}

@media (max-width:768px){
  #themeHeader{flex-direction:column;align-items:stretch}
  .theme-actions{justify-content:flex-end}
}

/* Paleta debajo del lienzo */
#paletteWrap{width:100%;max-width:min(80vmin,1100px);margin-top:12px;display:flex;gap:12px;align-items:center;justify-content:space-between}
.palette-bar{flex:1;display:flex;gap:8px;padding:8px;border-radius:8px;background:#f2f2f2;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.palette-bar .swatch{flex:1;height:40px;border-radius:6px;position:relative;overflow:hidden}
.palette-bar .swatch::after{content:attr(data-hex);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:600 14px/1 Arial,sans-serif;color:#fff;opacity:0;transition:opacity .15s ease;text-shadow:0 1px 2px rgba(0,0,0,.6)}
.palette-bar .swatch:hover::after{opacity:1}

/* Modal export */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.35);display:grid;place-items:center;z-index:9999}
.modal[hidden]{display:none}
.modal-content{width:min(560px,90vw);max-height:80vh;overflow:auto;background:#fff;border-radius:14px;padding:18px;box-shadow:0 20px 50px rgba(0,0,0,.35);position:relative}
.modal-close{position:absolute;top:8px;right:10px;border:none;background:transparent;font-size:26px;line-height:1;cursor:pointer}
.export-text{background:#f7f8fa;border:1px solid #e2e5ea;border-radius:8px;padding:14px;margin:0 0 12px 0;white-space:pre-wrap;font:14px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#223}

/* Form personalización */
.custom-form{margin-top:10px;padding:12px;border:1px solid #e0e0e0;border-radius:10px;background:#fafafa;display:grid;grid-template-columns:repeat(2,minmax(240px,1fr));gap:12px 20px}
.custom-form .row{display:flex;flex-direction:column;gap:6px}
.custom-form label{font-size:13px;color:#333}
.custom-form input{padding:8px 10px;border:1px solid #cfcfcf;border-radius:8px;font-family:ui-monospace,Menlo,Consolas,monospace}
.custom-form .err{color:#BC489E;font-size:12px}
.form-actions{grid-column:1/-1;display:flex;gap:12px;justify-content:flex-end;margin-top:4px}
.custom-form[hidden]{display:none!important}
@media (max-width:768px){.custom-form{grid-template-columns:1fr}}

.theme-analysis {
  width: 100%;
  max-width: min(80vmin, 1100px);
  padding: 12px;
  background: #fafafa;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.5;
}
.theme-analysis strong {
  display: inline-block;
  min-width: 220px;
}
.analysis-ok { color: #2e7d32; font-weight: bold; }       /* favorable */
.analysis-mid { color: #ff9800; font-weight: bold; }     /* aceptable */
.analysis-bad { color: #c62828; font-weight: bold; }     /* bajo contraste o delta bajo */