/**
 * BioLab COA Library — frontend styles
 * Palette matches Certificate of Analysis reference layout.
 */

.bld-coa-library {
	--bld-dark: #1e293b;
	--bld-blue: #3b82f6;
	--bld-blue-hover: #2563eb;
	--bld-gray-100: #f3f4f6;
	--bld-gray-200: #e5e7eb;
	--bld-gray-400: #9ca3af;
	--bld-gray-500: #6b7280;
	--bld-gray-700: #374151;
	--bld-white: #ffffff;
	--bld-radius: 14px;
	--bld-radius-sm: 999px;

	font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
	color: var(--bld-dark);
	max-width: 1100px;
	margin: 0 auto;
	padding: 1.5rem 1rem 2.5rem;
	box-sizing: border-box;
}

.bld-coa-library *,
.bld-coa-library *::before,
.bld-coa-library *::after {
	box-sizing: border-box;
}

/* Header */
.bld-coa-header {
	margin-bottom: 1.25rem;
}

.bld-coa-title {
	margin: 0 0 0.35rem;
	font-size: clamp(1.75rem, 3vw, 2.25rem);
	font-weight: 700;
	line-height: 1.2;
	color: var(--bld-dark);
	letter-spacing: -0.02em;
}

.bld-coa-subtitle {
	margin: 0;
	font-size: 0.95rem;
	color: var(--bld-gray-500);
	line-height: 1.45;
}

/* Toolbar */
.bld-coa-toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	align-items: stretch;
	margin-bottom: 1.5rem;
}

.bld-coa-search-wrap {
	position: relative;
	flex: 1 1 280px;
	min-width: 0;
}

.bld-coa-search-icon {
	position: absolute;
	left: 0.95rem;
	top: 50%;
	transform: translateY(-50%);
	color: var(--bld-gray-400);
	pointer-events: none;
	z-index: 1;
	display: block;
	width: 18px;
	height: 18px;
	flex-shrink: 0;
}

.bld-coa-library input.bld-coa-search,
.bld-coa-library input[type="search"].bld-coa-search {
	width: 100%;
	height: 48px;
	padding: 0 1rem 0 2.85rem;
	border: 1px solid var(--bld-gray-200);
	border-radius: 12px;
	background: var(--bld-gray-100);
	font-size: 0.95rem;
	color: var(--bld-dark);
	outline: none;
	appearance: none;
	-webkit-appearance: none;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.bld-coa-library input.bld-coa-search::-webkit-search-decoration,
.bld-coa-library input.bld-coa-search::-webkit-search-cancel-button,
.bld-coa-library input.bld-coa-search::-webkit-search-results-button,
.bld-coa-library input.bld-coa-search::-webkit-search-results-decoration {
	-webkit-appearance: none;
	appearance: none;
	display: none;
}

.bld-coa-search::placeholder {
	color: var(--bld-gray-400);
	opacity: 1;
}

.bld-coa-library input.bld-coa-search:focus {
	border-color: var(--bld-blue);
	background: var(--bld-white);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.bld-coa-validate-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.45rem;
	height: 48px;
	padding: 0 1.15rem;
	border: none;
	border-radius: 12px;
	background: var(--bld-dark);
	color: var(--bld-white);
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	cursor: pointer;
	white-space: nowrap;
	transition: background 0.15s ease, transform 0.15s ease;
}

.bld-coa-validate-btn:hover,
.bld-coa-validate-btn:focus {
	background: #0f172a;
	color: var(--bld-white);
	text-decoration: none;
}

.bld-coa-info-icon {
	font-style: normal;
	font-size: 1rem;
	line-height: 1;
	opacity: 0.9;
}

/* Empty / no products */
.bld-coa-empty,
.bld-coa-no-products {
	padding: 2rem 1rem;
	text-align: center;
	color: var(--bld-gray-500);
	font-size: 0.95rem;
}

.bld-coa-list {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

/* Card */
.bld-coa-card {
	background: var(--bld-white);
	border: 1px solid var(--bld-gray-200);
	border-radius: var(--bld-radius);
	padding: 1rem 1.15rem 1.15rem;
}

.bld-coa-card[hidden] {
	display: none !important;
}

/* Tabs */
.bld-coa-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1rem;
}

.bld-coa-tab {
	appearance: none;
	border: 1.5px solid var(--bld-gray-200);
	background: var(--bld-white);
	color: var(--bld-gray-700);
	border-radius: var(--bld-radius-sm);
	padding: 0.35rem 0.85rem;
	font-size: 0.8rem;
	font-weight: 500;
	cursor: pointer;
	line-height: 1.3;
	transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.bld-coa-tab:hover {
	border-color: var(--bld-blue);
	color: var(--bld-blue);
}

.bld-coa-tab.is-active {
	border-color: var(--bld-blue);
	color: var(--bld-blue);
	background: rgba(59, 130, 246, 0.06);
}

/* Card body */
.bld-coa-card-body {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 1.25rem 1.5rem;
}

.bld-coa-meta {
	flex: 1 1 220px;
	min-width: 140px;
	display: flex;
	flex-direction: column;
	gap: 0.85rem;
}

.bld-coa-specs {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-start;
	gap: 1rem 1.75rem;
}

.bld-coa-field {
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
}

.bld-coa-label {
	font-size: 0.75rem;
	font-weight: 500;
	color: var(--bld-gray-400);
	letter-spacing: 0.01em;
}

.bld-coa-product-name {
	font-size: 1.05rem;
	font-weight: 700;
	color: var(--bld-dark);
	line-height: 1.25;
}

.bld-coa-doses {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
}

.bld-coa-dose-pill,
.bld-coa-purity-pill {
	display: inline-flex;
	align-items: center;
	padding: 0.25rem 0.7rem;
	border: 1.5px solid var(--bld-blue);
	border-radius: var(--bld-radius-sm);
	color: var(--bld-blue);
	font-size: 0.8rem;
	font-weight: 600;
	background: var(--bld-white);
	width: fit-content;
}

.bld-coa-card-actions {
	flex: 0 0 auto;
	margin-left: auto;
}

.bld-coa-view-pdf {
	appearance: none;
	height: 40px;
	padding: 0 1.15rem;
	border: none;
	border-radius: 8px;
	background: var(--bld-blue);
	color: var(--bld-white);
	font-size: 0.875rem;
	font-weight: 600;
	cursor: pointer;
	white-space: nowrap;
	transition: background 0.15s ease;
}

.bld-coa-view-pdf:hover:not(:disabled),
.bld-coa-view-pdf:focus:not(:disabled) {
	background: var(--bld-blue-hover);
}

.bld-coa-view-pdf:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

/* Validate modal */
.bld-coa-modal {
	border: none;
	border-radius: 14px;
	padding: 0;
	max-width: min(440px, calc(100vw - 2rem));
	box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.bld-coa-modal::backdrop,
.bld-coa-gallery-modal::backdrop {
	background: rgba(15, 23, 42, 0.45);
}

.bld-coa-modal-inner {
	position: relative;
	padding: 1.5rem 1.5rem 1.35rem;
}

.bld-coa-modal-inner h3 {
	margin: 0 0 0.85rem;
	font-size: 1.15rem;
	color: var(--bld-dark);
}

.bld-coa-validate-steps {
	margin: 0;
	padding-left: 1.2rem;
	color: var(--bld-gray-700);
	font-size: 0.925rem;
	line-height: 1.55;
}

.bld-coa-validate-steps li + li {
	margin-top: 0.45rem;
}

.bld-coa-modal-close {
	position: absolute;
	top: 0.65rem;
	right: 0.75rem;
	border: none;
	background: transparent;
	font-size: 1.5rem;
	line-height: 1;
	color: var(--bld-gray-400);
	cursor: pointer;
	padding: 0.15rem 0.4rem;
	z-index: 2;
}

.bld-coa-modal-close:hover {
	color: var(--bld-dark);
}

/* PDF gallery modal */
.bld-coa-gallery-modal {
	border: none;
	border-radius: 16px;
	padding: 0;
	width: min(960px, calc(100vw - 2rem));
	max-width: min(960px, calc(100vw - 2rem));
	max-height: calc(100vh - 2rem);
	box-shadow: 0 24px 60px rgba(15, 23, 42, 0.3);
	overflow: hidden;
}

.bld-coa-gallery-inner {
	position: relative;
	padding: 1.35rem 1.35rem 1.5rem;
	max-height: calc(100vh - 2rem);
	overflow: auto;
}

.bld-coa-gallery-header {
	padding-right: 2rem;
	margin-bottom: 1rem;
}

.bld-coa-gallery-title {
	margin: 0;
	font-size: 1.2rem;
	font-weight: 700;
	color: var(--bld-dark);
}

.bld-coa-gallery-subtitle {
	margin: 0.25rem 0 0;
	font-size: 0.875rem;
	color: var(--bld-gray-500);
}

.bld-coa-gallery-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 1rem;
}

.bld-coa-gallery-item {
	margin: 0;
	border: 1px solid var(--bld-gray-200);
	border-radius: 12px;
	overflow: hidden;
	background: var(--bld-gray-100);
	display: flex;
	flex-direction: column;
}

.bld-coa-gallery-frame {
	position: relative;
	aspect-ratio: 3 / 4;
	background: var(--bld-gray-200);
}

.bld-coa-gallery-frame iframe {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	border: 0;
	background: var(--bld-white);
}

.bld-coa-gallery-caption {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem 0.75rem;
	padding: 0.75rem 0.85rem;
	background: var(--bld-white);
	border-top: 1px solid var(--bld-gray-200);
}

.bld-coa-gallery-lot {
	font-size: 0.875rem;
	font-weight: 700;
	color: var(--bld-dark);
}

.bld-coa-gallery-dose {
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--bld-blue);
	padding: 0.15rem 0.5rem;
	border: 1px solid var(--bld-blue);
	border-radius: var(--bld-radius-sm);
}

.bld-coa-gallery-open {
	margin-left: auto;
	font-size: 0.8rem;
	font-weight: 600;
	color: var(--bld-blue);
	text-decoration: none;
}

.bld-coa-gallery-open:hover,
.bld-coa-gallery-open:focus {
	text-decoration: underline;
	color: var(--bld-blue-hover);
}

.bld-coa-gallery-empty {
	margin: 1.5rem 0 0.5rem;
	text-align: center;
	color: var(--bld-gray-500);
	font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 720px) {
	.bld-coa-library {
		padding: 1rem 0.75rem 1.75rem;
	}

	.bld-coa-list {
		gap: 0.75rem;
	}

	.bld-coa-card {
		padding: 0.85rem 0.9rem 0.9rem;
	}

	.bld-coa-tabs {
		margin-bottom: 0.65rem;
		gap: 0.4rem;
	}

	.bld-coa-card-body {
		flex-direction: column;
		align-items: stretch;
		gap: 0.75rem;
	}

	/* flex-basis: 220px becomes height in a column flex — collapse it on mobile */
	.bld-coa-meta {
		flex: 0 0 auto;
		min-width: 0;
		width: 100%;
		gap: 0.55rem;
	}

	.bld-coa-specs {
		gap: 0.65rem 1rem;
	}

	.bld-coa-card-actions {
		margin-left: 0;
		width: 100%;
	}

	.bld-coa-view-pdf {
		width: 100%;
	}

	.bld-coa-validate-btn {
		width: 100%;
	}

	.bld-coa-gallery-grid {
		grid-template-columns: 1fr;
	}
}