.epv31-customizer {
	margin: 24px 0;
	padding: 22px;
	border: 1px solid #e4e7ec;
	border-radius: 18px;
	background: #fff;
	box-shadow: 0 12px 30px rgba(0,0,0,.06);
}
.epv31-customizer h3 { margin: 0 0 18px; font-size: 21px; }
.epv31-top-controls {
	display: flex;
	align-items: end;
	justify-content: space-between;
	gap: 14px;
	margin-bottom: 18px;
}
.epv31-top-controls label { flex: 1; }
.epv31-top-controls label > span {
	display: block;
	font-weight: 700;
	margin-bottom: 6px;
}
.epv31-top-controls select {
	width: 100%;
	padding: 10px;
	border: 1px solid #ccd2da;
	border-radius: 10px;
}
.epv31-view-tabs {
	display: flex;
	gap: 6px;
}
.epv31-view-tabs button {
	padding: 10px 16px;
	border: 1px solid #d7dbe1;
	border-radius: 9px;
	background: #f6f7f8;
	cursor: pointer;
}
.epv31-view-tabs button.is-active {
	background: #111;
	color: #fff;
	border-color: #111;
}
.epv31-layout {
	display: grid;
	grid-template-columns: minmax(250px,.8fr) minmax(390px,1.2fr);
	gap: 22px;
	align-items: start;
}
.epv31-controls { display: grid; gap: 15px; }
.epv31-upload {
	display: block;
	padding: 18px;
	border: 2px dashed #f1c400;
	border-radius: 14px;
	background: #fffdf3;
	text-align: center;
	cursor: pointer;
}
.epv31-upload span,
.epv31-upload strong,
.epv31-upload small { display: block; }
.epv31-upload-icon { font-size: 30px; margin-bottom: 6px; }
.epv31-upload small { margin: 5px 0 10px; opacity: .75; }
.epv31-upload input { width: 100%; }
.epv31-size-control {
	display: grid;
	gap: 10px;
	padding: 14px;
	border-radius: 12px;
	background: #f7f7f7;
}
.epv31-size-control label > span {
	display: block;
	font-weight: 700;
	margin-bottom: 6px;
}
.epv31-size-control input[type=range] { width: 100%; }
.epv31-size-control button {
	padding: 9px 12px;
	border: 0;
	border-radius: 8px;
	cursor: pointer;
	font-weight: 700;
}
.epv31-notes > span {
	display: block;
	font-weight: 700;
	margin-bottom: 6px;
}
.epv31-notes textarea {
	width: 100%;
	padding: 11px;
	border: 1px solid #ccd2da;
	border-radius: 10px;
}
.epv31-stage {
	position: relative;
	overflow: hidden;
	width: 100%;
	aspect-ratio: 1 / 1;
	border: 1px solid #dfe3e8;
	border-radius: 16px;
	background: #f7f7f7;
	touch-action: none;
}
.epv31-mockup {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: contain;
	pointer-events: none;
	user-select: none;
}
.epv31-design {
	position: absolute;
	left: 50%;
	top: 50%;
	width: 100px;
	max-width: none;
	transform: translate(-50%,-50%);
	cursor: move;
	display: none;
	user-select: none;
	-webkit-user-drag: none;
}
.epv31-empty {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
	padding: 10px 14px;
	border-radius: 9px;
	background: rgba(255,255,255,.88);
	font-weight: 700;
	text-align: center;
}
.epv31-help {
	margin: 9px 0 0;
	font-size: 13px;
	opacity: .75;
	text-align: center;
}
@media (max-width: 850px) {
	.epv31-layout { grid-template-columns: 1fr; }
	.epv31-top-controls { align-items: stretch; flex-direction: column; }
}

/* v3.2: permite adjuntar claramente archivos distintos para frente y espalda */
.epv31-upload-section {
	position: relative;
}
.epv31-upload-section[data-side="front"]::before,
.epv31-upload-section[data-side="back"]::before {
	display: block;
	margin-bottom: 7px;
	font-size: 13px;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: .04em;
}
.epv31-upload-section[data-side="front"]::before {
	content: "Archivo para el frente";
}
.epv31-upload-section[data-side="back"]::before {
	content: "Archivo para la espalda";
}


/* v3.5: los dos adjuntadores permanecen independientes.
   JavaScript muestra el correspondiente a la vista activa sin borrar el otro. */
.epv31-upload-section {
	display: none;
}
.epv31-upload-section.is-active {
	display: block;
}
.epv31-file-status {
	display: block;
	margin-top: 9px;
	padding: 7px 9px;
	border-radius: 8px;
	background: #f2f4f7;
	font-size: 12px;
	font-weight: 700;
	word-break: break-word;
}


/* v4.0: resumen de precio y guía de área imprimible */
.epv40-price-summary {
	display: grid;
	grid-template-columns: repeat(3, minmax(0,1fr));
	gap: 10px;
	margin: 0 0 18px;
	padding: 14px;
	border-radius: 12px;
	background: #f7f7f7;
}
.epv40-price-summary > div {
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.epv40-price-summary span {
	font-size: 12px;
	opacity: .72;
}
.epv40-price-summary strong {
	font-size: 17px;
}
.epv40-total-line {
	padding-left: 12px;
	border-left: 2px solid #f1c400;
}
.epv40-total-line strong {
	font-size: 20px;
}

.epv40-safe-area {
	position: absolute;
	left: 34%;
	top: 27%;
	width: 32%;
	height: 46%;
	border: 2px dashed rgba(20,20,20,.38);
	border-radius: 8px;
	pointer-events: none;
	z-index: 2;
}
.epv40-safe-area span {
	position: absolute;
	left: 50%;
	top: -24px;
	transform: translateX(-50%);
	padding: 3px 7px;
	border-radius: 6px;
	background: rgba(255,255,255,.88);
	font-size: 10px;
	font-weight: 700;
	white-space: nowrap;
}
.epv31-design {
	z-index: 3;
}
.epv31-mockup {
	z-index: 1;
}
.epv31-empty {
	z-index: 4;
}

@media (max-width: 620px) {
	.epv40-price-summary {
		grid-template-columns: 1fr;
	}
	.epv40-total-line {
		padding-left: 0;
		padding-top: 8px;
		border-left: 0;
		border-top: 2px solid #f1c400;
	}
}


/* v5.0: selección, redimensionado, guías magnéticas y controles profesionales */
.epv50-control-buttons {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 8px;
}
.epv50-measure {
	padding: 8px 10px;
	border-radius: 8px;
	background: #fff;
	border: 1px solid #e4e7ec;
	font-size: 13px;
	font-weight: 700;
	text-align: center;
}

.epv50-selection {
	position: absolute;
	display: none;
	border: 1.5px solid rgba(17,17,17,.78);
	pointer-events: none;
	z-index: 5;
	box-sizing: border-box;
}
.epv50-selection.is-visible {
	display: block;
}
.epv50-handle {
	position: absolute;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: #fff;
	border: 2px solid #111;
	box-sizing: border-box;
	pointer-events: auto;
	touch-action: none;
}
.epv50-handle-nw { left: -8px; top: -8px; cursor: nwse-resize; }
.epv50-handle-ne { right: -8px; top: -8px; cursor: nesw-resize; }
.epv50-handle-sw { left: -8px; bottom: -8px; cursor: nesw-resize; }
.epv50-handle-se { right: -8px; bottom: -8px; cursor: nwse-resize; }

.epv50-guide {
	position: absolute;
	display: none;
	z-index: 4;
	pointer-events: none;
	background: rgba(241,196,0,.95);
	box-shadow: 0 0 0 1px rgba(255,255,255,.7);
}
.epv50-guide.is-visible {
	display: block;
}
.epv50-guide-v {
	left: 50%;
	top: 27%;
	width: 1px;
	height: 46%;
}
.epv50-guide-h {
	left: 34%;
	top: 50%;
	width: 32%;
	height: 1px;
}

.epv31-design {
	touch-action: none;
	will-change: left, top, width;
}
.epv31-stage {
	overscroll-behavior: contain;
}

@media (max-width: 620px) {
	.epv50-control-buttons {
		grid-template-columns: 1fr;
	}
	.epv50-handle {
		width: 18px;
		height: 18px;
	}
	.epv50-handle-nw { left: -10px; top: -10px; }
	.epv50-handle-ne { right: -10px; top: -10px; }
	.epv50-handle-sw { left: -10px; bottom: -10px; }
	.epv50-handle-se { right: -10px; bottom: -10px; }
}