/* Product Add-Ons – trang sản phẩm */
.ppa {
	--ppa-ink: var(--cb-black, #1a1612);
	--ppa-muted: var(--cb-muted, #7a6a58);
	--ppa-line: var(--cb-line, #e5d9c6);
	--ppa-cream: var(--cb-cream, #f6efe3);
	--ppa-accent: var(--cb-gold-dark, #b08d5e);
	--ppa-error: #b3261e;
	width: 100%;
	flex: 0 0 100%;
	margin: 0 0 22px;
	text-align: left;
}
.ppa-group + .ppa-group { margin-top: 26px; }
.ppa-group__title {
	margin: 0 0 16px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--ppa-line);
	font-size: 15px;
	letter-spacing: .1em;
	text-transform: uppercase;
	color: var(--ppa-ink);
}
.ppa-preview-badge {
	margin: 0 0 12px;
	padding: 8px 12px;
	background: #fff4d6;
	border: 1px dashed #c99a2e;
	font-size: 12px;
	color: #6b4f12;
}
.ppa-field { margin: 0 0 20px; }
.ppa-field__label {
	display: block;
	margin: 0 0 6px;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--ppa-ink);
}
.ppa-req { color: var(--ppa-error); text-decoration: none; border: 0; }
.ppa-price {
	margin-left: 6px;
	font-weight: 400;
	letter-spacing: 0;
	text-transform: none;
	color: var(--ppa-accent);
}
.ppa-field__desc {
	margin: -2px 0 8px;
	font-size: 13px;
	line-height: 1.5;
	color: var(--ppa-muted);
}
.ppa .ppa-input {
	width: 100%;
	margin: 0;
	padding: 11px 13px;
	border: 1px solid var(--ppa-line);
	border-radius: 0;
	background: #fff;
	box-shadow: none;
	font-size: 15px;
	line-height: 1.45;
	color: var(--ppa-ink);
}
.ppa textarea.ppa-input { min-height: 92px; resize: vertical; }
.ppa .ppa-input:focus { border-color: var(--ppa-ink); outline: none; box-shadow: 0 0 0 1px var(--ppa-ink); }
.ppa-counter { margin: 4px 0 0; font-size: 12px; text-align: right; color: var(--ppa-muted); }

/* Radio / checkbox */
.ppa-choices { display: flex; flex-wrap: wrap; gap: 8px; }
.ppa-choices--radio, .ppa-choices--checkbox { flex-direction: column; gap: 6px; }
.ppa-choice {
	position: relative;
	display: flex;
	align-items: center;
	gap: 10px;
	margin: 0 !important;
	font-size: 14px;
	font-weight: 400;
	color: var(--ppa-ink);
	cursor: pointer;
}
.ppa-choices--radio .ppa-choice input,
.ppa-choices--checkbox .ppa-choice input { margin: 0 !important; accent-color: var(--ppa-ink); width: 17px; height: 17px; }

/* Swatch (ảnh) */
.ppa-choices--swatch { display: grid; grid-template-columns: repeat(auto-fill, minmax(112px, 1fr)); gap: 10px; }
.ppa-swatch {
	flex-direction: column;
	align-items: stretch;
	gap: 0;
	border: 1px solid var(--ppa-line);
	background: #fff;
	transition: border-color .15s ease, box-shadow .15s ease;
}
.ppa-swatch input { position: absolute; opacity: 0; pointer-events: none; }
.ppa-swatch__img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; background: var(--ppa-cream); }
.ppa-swatch .ppa-choice__text { display: flex; flex-direction: column; gap: 2px; padding: 8px 10px; font-size: 13px; line-height: 1.3; text-align: center; }
.ppa-swatch .ppa-price { margin: 0; font-size: 12px; }
.ppa-swatch--noimg .ppa-choice__text { padding: 13px 10px; }
.ppa-swatch:hover { border-color: var(--ppa-accent); }
.ppa-swatch:has(input:checked) { border-color: var(--ppa-ink); box-shadow: 0 0 0 1px var(--ppa-ink); }
.ppa-swatch:has(input:checked) .ppa-choice__label { font-weight: 700; }
.ppa-swatch:has(input:focus-visible) { outline: 2px solid var(--ppa-accent); outline-offset: 2px; }

/* Upload */
.ppa-upload__list { margin: 0; padding: 0; list-style: none; }
.ppa-upload__item {
	display: flex;
	align-items: center;
	gap: 12px;
	margin: 0 0 8px;
	padding: 8px 10px;
	border: 1px solid var(--ppa-line);
	background: #fff;
	font-size: 13px;
}
.ppa-upload__item img,
.ppa-upload__pdf {
	flex: 0 0 auto;
	width: 46px;
	height: 46px;
	object-fit: cover;
	background: var(--ppa-cream);
}
.ppa-upload__pdf { display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: var(--ppa-muted); }
.ppa-upload__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ppa-ink); }
.ppa-upload__item.is-loading { opacity: .65; }
.ppa .ppa-upload__remove {
	flex: 0 0 auto;
	width: 30px;
	height: 30px;
	min-height: 0;
	margin: 0;
	padding: 0;
	border: 0;
	background: transparent;
	font-size: 20px;
	line-height: 1;
	color: var(--ppa-muted);
	cursor: pointer;
}
.ppa .ppa-upload__remove:hover { color: var(--ppa-error); }
.ppa-upload__drop {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 4px;
	margin: 0 !important;
	padding: 18px 14px;
	border: 1px dashed var(--ppa-accent);
	background: var(--ppa-cream);
	text-align: center;
	color: var(--ppa-ink);
	cursor: pointer;
	transition: background .15s ease;
}
.ppa-upload__drop:hover, .ppa-upload__drop.is-drag { background: #efe4d1; }
.ppa-upload__cta { font-size: 14px; font-weight: 700; }
.ppa-upload__hint { font-size: 12px; color: var(--ppa-muted); }
.ppa-upload__input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.ppa-upload.is-full .ppa-upload__drop { display: none; }
.ppa-upload__input:focus-visible + .ppa-upload__drop,
.ppa-upload__drop:focus-within { outline: 2px solid var(--ppa-accent); outline-offset: 2px; }

/* Lỗi */
.ppa-field__error, .ppa-form-error { margin: 6px 0 0; font-size: 13px; color: var(--ppa-error); }
.ppa-field.has-error .ppa-input,
.ppa-field.has-error .ppa-swatch,
.ppa-field.has-error .ppa-upload__drop { border-color: var(--ppa-error); }

/* Tổng tiền */
.ppa-totals { margin: 4px 0 0; padding: 12px 14px; background: var(--ppa-cream); font-size: 14px; }
.ppa-totals__row { display: flex; justify-content: space-between; gap: 12px; color: var(--ppa-muted); }
.ppa-totals__row--grand { margin-top: 4px; font-weight: 700; color: var(--ppa-ink); }
.ppa-totals[hidden] { display: none; }