/* ==========================================================================
   Peptide Directory — Card Grid, Filters, and Detail Modal
   Namespace: .psa-dir-* (BEM)
   ========================================================================== */

/* --- CSS Custom Properties for category badge colors (reusable by other plugins) --- */
:root {
	--psa-cat-tissue-repair-bg: #d4edda;
	--psa-cat-tissue-repair-fg: #155724;
	--psa-cat-lipid-metabolism-bg: #d1ecf1;
	--psa-cat-lipid-metabolism-fg: #0c5460;
	--psa-cat-aging-research-bg: #e2d5f1;
	--psa-cat-aging-research-fg: #432874;
	--psa-cat-dermatological-bg: #fce4d6;
	--psa-cat-dermatological-fg: #7c4a1a;
	--psa-cat-metabolic-bg: #fff3cd;
	--psa-cat-metabolic-fg: #856404;
	--psa-cat-growth-hormone-bg: #cce5ff;
	--psa-cat-growth-hormone-fg: #004085;
	--psa-cat-immunology-bg: #f5c6cb;
	--psa-cat-immunology-fg: #721c24;
	--psa-cat-endocrine-bg: #c3e6cb;
	--psa-cat-endocrine-fg: #1b5e20;
}

/* --- Wrapper --- */
.psa-dir-wrap {
	max-width: 1200px;
	margin: 0 auto;
	padding: 2rem 1rem;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
}

/* --- Header --- */
.psa-dir-header {
	text-align: center;
	margin-bottom: 2rem;
}

.psa-dir-title {
	font-size: 2rem;
	font-weight: 700;
	color: #1e293b;
	margin: 0 0 0.5rem;
}

.psa-dir-subtitle {
	font-size: 1.05rem;
	color: #64748b;
	margin: 0;
}

/* --- Search --- */
.psa-dir-search-wrap {
	max-width: 480px;
	margin: 0 auto 1.5rem;
}

.psa-dir-search {
	width: 100%;
	padding: 12px 16px;
	font-size: 15px;
	border: 2px solid #e2e8f0;
	border-radius: 8px;
	outline: none;
	transition: border-color 0.2s;
	box-sizing: border-box;
}

.psa-dir-search:focus {
	border-color: #2563eb;
	box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* --- Tabs --- */
.psa-dir-tabs {
	display: flex;
	justify-content: center;
	gap: 4px;
	margin-bottom: 1.5rem;
}

.psa-dir-tab {
	padding: 8px 20px;
	font-size: 14px;
	font-weight: 600;
	border: 1px solid #e2e8f0;
	border-radius: 6px;
	background: #fff;
	color: #64748b;
	cursor: pointer;
	transition: all 0.2s;
}

.psa-dir-tab:hover {
	background: #f8fafc;
}

.psa-dir-tab--active {
	background: #2563eb;
	color: #fff;
	border-color: #2563eb;
}

/* --- Category Filters --- */
.psa-dir-filters {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	justify-content: center;
	margin-bottom: 2rem;
}

.psa-dir-filter {
	padding: 6px 16px;
	font-size: 13px;
	font-weight: 500;
	border: 1px solid #e2e8f0;
	border-radius: 20px;
	background: #fff;
	color: #475569;
	cursor: pointer;
	transition: all 0.2s;
}

.psa-dir-filter:hover {
	border-color: #2563eb;
	color: #2563eb;
}

.psa-dir-filter--active {
	background: #2563eb;
	color: #fff;
	border-color: #2563eb;
}

/* --- Grid --- */
.psa-dir-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.25rem;
}

/* --- Card --- */
.psa-dir-card {
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
	padding: 1.25rem;
	display: flex;
	flex-direction: column;
	transition: border-color 0.2s, box-shadow 0.2s;
}

.psa-dir-card:hover {
	border-color: #2563eb;
	box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.psa-dir-card__header {
	margin-bottom: 0.75rem;
}

.psa-dir-card__title {
	font-size: 1.1rem;
	font-weight: 700;
	color: #1e293b;
	margin: 0 0 0.5rem;
}

.psa-dir-card__badge {
	display: inline-block;
	font-size: 11px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	padding: 2px 10px;
	border-radius: 12px;
}

.psa-dir-card__meta {
	display: flex;
	flex-direction: column;
	gap: 4px;
	margin-bottom: 1rem;
	flex-grow: 1;
}

.psa-dir-card__meta-item {
	display: flex;
	justify-content: space-between;
	font-size: 13px;
}

.psa-dir-card__meta-label {
	color: #64748b;
	font-weight: 500;
}

.psa-dir-card__meta-value {
	color: #1e293b;
	font-weight: 600;
}

.psa-dir-card__btn {
	width: 100%;
	padding: 10px;
	font-size: 14px;
	font-weight: 600;
	background: #2563eb;
	color: #fff;
	border: none;
	border-radius: 8px;
	cursor: pointer;
	transition: background 0.2s;
	margin-top: auto;
}

.psa-dir-card__btn:hover {
	background: #1d4ed8;
}

/* --- Category Badge Colors --- */
.psa-dir-badge--tissue-repair     { background: var(--psa-cat-tissue-repair-bg); color: var(--psa-cat-tissue-repair-fg); }
.psa-dir-badge--lipid-metabolism  { background: var(--psa-cat-lipid-metabolism-bg); color: var(--psa-cat-lipid-metabolism-fg); }
.psa-dir-badge--aging-research    { background: var(--psa-cat-aging-research-bg); color: var(--psa-cat-aging-research-fg); }
.psa-dir-badge--dermatological    { background: var(--psa-cat-dermatological-bg); color: var(--psa-cat-dermatological-fg); }
.psa-dir-badge--metabolic         { background: var(--psa-cat-metabolic-bg); color: var(--psa-cat-metabolic-fg); }
.psa-dir-badge--growth-hormone    { background: var(--psa-cat-growth-hormone-bg); color: var(--psa-cat-growth-hormone-fg); }
.psa-dir-badge--immunology        { background: var(--psa-cat-immunology-bg); color: var(--psa-cat-immunology-fg); }
.psa-dir-badge--endocrine         { background: var(--psa-cat-endocrine-bg); color: var(--psa-cat-endocrine-fg); }

/* --- Empty State --- */
.psa-dir-empty,
.psa-dir-coming-soon {
	text-align: center;
	padding: 3rem 1rem;
	color: #64748b;
	font-size: 1rem;
}

/* --- Loader --- */
.psa-dir-loader {
	text-align: center;
	padding: 3rem 1rem;
}

.psa-dir-loader p {
	color: #64748b;
	margin-top: 1rem;
}

/* --- Load More --- */
.psa-dir-load-more-wrap {
	text-align: center;
	margin-top: 2rem;
}

.psa-dir-load-more {
	padding: 12px 32px;
	font-size: 15px;
	font-weight: 600;
	background: #fff;
	color: #2563eb;
	border: 2px solid #2563eb;
	border-radius: 8px;
	cursor: pointer;
	transition: all 0.2s;
}

.psa-dir-load-more:hover {
	background: #2563eb;
	color: #fff;
}

.psa-dir-load-more:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

/* --- Error --- */
.psa-dir-error {
	text-align: center;
	color: #991b1b;
	padding: 2rem;
}

/* ==========================================================================
   Detail Modal
   ========================================================================== */

.psa-dir-modal {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 99999;
	display: flex;
	align-items: center;
	justify-content: center;
}

.psa-dir-modal__backdrop {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0, 0, 0, 0.5);
}

.psa-dir-modal__content {
	position: relative;
	background: #fff;
	border-radius: 16px;
	padding: 2rem;
	max-width: 700px;
	width: 90%;
	max-height: 85vh;
	overflow-y: auto;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.psa-dir-modal__close {
	position: absolute;
	top: 12px;
	right: 16px;
	font-size: 28px;
	background: none;
	border: none;
	color: #94a3b8;
	cursor: pointer;
	line-height: 1;
	padding: 4px;
}

.psa-dir-modal__close:hover {
	color: #1e293b;
}

.psa-dir-modal__title {
	font-size: 1.5rem;
	font-weight: 700;
	color: #1e293b;
	margin: 0 0 0.5rem;
	padding-right: 2rem;
}

.psa-dir-modal__badges {
	margin-bottom: 1rem;
}

.psa-dir-modal__desc {
	font-size: 15px;
	line-height: 1.65;
	color: #475569;
	margin-bottom: 1.5rem;
}

/* --- Sequence --- */
.psa-dir-modal__sequence-wrap {
	display: flex;
	align-items: flex-start;
	gap: 8px;
	background: #f1f5f9;
	padding: 12px;
	border-radius: 8px;
}

.psa-dir-modal__sequence {
	font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
	font-size: 13px;
	word-break: break-all;
	flex: 1;
	color: #334155;
}

.psa-dir-modal__copy {
	padding: 4px 12px;
	font-size: 12px;
	font-weight: 600;
	background: #2563eb;
	color: #fff;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	white-space: nowrap;
}

.psa-dir-modal__copy:hover {
	background: #1d4ed8;
}

/* --- Data Grid --- */
.psa-dir-modal__data-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 12px;
	margin-bottom: 1.5rem;
	padding: 1rem;
	background: #f8fafc;
	border-radius: 10px;
	border: 1px solid #e2e8f0;
}

.psa-dir-modal__data-item {
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.psa-dir-modal__data-label {
	font-size: 12px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.3px;
	color: #64748b;
}

.psa-dir-modal__data-value {
	font-size: 14px;
	font-weight: 600;
	color: #1e293b;
}

/* --- Modal Sections --- */
.psa-dir-modal__section {
	margin-bottom: 1.5rem;
}

.psa-dir-modal__section h4 {
	font-size: 15px;
	font-weight: 700;
	color: #1e293b;
	margin: 0 0 0.5rem;
	padding-bottom: 6px;
	border-bottom: 2px solid #2563eb;
}

.psa-dir-modal__section p {
	font-size: 14px;
	line-height: 1.6;
	color: #475569;
	margin: 0 0 0.5rem;
}

/* --- PubChem Link --- */
.psa-dir-modal__pubchem {
	display: inline-block;
	font-size: 13px;
	color: #2563eb;
	text-decoration: none;
	margin-bottom: 1rem;
}

.psa-dir-modal__pubchem:hover {
	text-decoration: underline;
}

/* --- Full Page Link --- */
.psa-dir-modal__full-link {
	display: inline-block;
	padding: 10px 24px;
	font-size: 14px;
	font-weight: 600;
	background: #f1f5f9;
	color: #2563eb;
	text-decoration: none;
	border-radius: 8px;
	transition: background 0.2s;
}

.psa-dir-modal__full-link:hover {
	background: #e2e8f0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Tablet: 2 columns */
@media (max-width: 900px) {
	.psa-dir-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* Mobile: 1 column */
@media (max-width: 600px) {
	.psa-dir-grid {
		grid-template-columns: 1fr;
	}

	.psa-dir-title {
		font-size: 1.5rem;
	}

	.psa-dir-modal__content {
		width: 95%;
		padding: 1.25rem;
		max-height: 90vh;
	}

	.psa-dir-modal__data-grid {
		grid-template-columns: 1fr;
	}

	.psa-dir-filters {
		gap: 6px;
	}

	.psa-dir-filter {
		font-size: 12px;
		padding: 5px 12px;
	}
}

/* ==========================================================================
   Dark Mode Support
   Uses the theme's data-theme="dark" attribute and CSS custom properties.
   ========================================================================== */

[data-theme="dark"] .psa-dir-wrap {
	color: #e2e8f0;
}

[data-theme="dark"] .psa-dir-title {
	color: #f1f5f9;
}

[data-theme="dark"] .psa-dir-subtitle {
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-search {
	background: #1e293b;
	border-color: #334155;
	color: #f1f5f9;
}

[data-theme="dark"] .psa-dir-tab {
	background: #1e293b;
	border-color: #334155;
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-tab--active {
	background: #2563eb;
	color: #fff;
}

[data-theme="dark"] .psa-dir-filter {
	background: #1e293b;
	border-color: #334155;
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-filter--active {
	background: #2563eb;
	color: #fff;
}

[data-theme="dark"] .psa-dir-card {
	background: #1e293b;
	border-color: #334155;
}

[data-theme="dark"] .psa-dir-card__title {
	color: #f1f5f9;
}

[data-theme="dark"] .psa-dir-card__meta-label {
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-card__meta-value {
	color: #e2e8f0;
}

[data-theme="dark"] .psa-dir-modal__content {
	background: #0f172a;
	color: #e2e8f0;
}

[data-theme="dark"] .psa-dir-modal__title {
	color: #f1f5f9;
}

[data-theme="dark"] .psa-dir-modal__desc {
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-modal__data-grid {
	background: #1e293b;
	border-color: #334155;
}

[data-theme="dark"] .psa-dir-modal__data-label {
	color: #94a3b8;
}

[data-theme="dark"] .psa-dir-modal__data-value {
	color: #e2e8f0;
}

[data-theme="dark"] .psa-dir-modal__sequence-wrap {
	background: #1e293b;
}

[data-theme="dark"] .psa-dir-modal__sequence {
	color: #e2e8f0;
}

[data-theme="dark"] .psa-dir-modal__close {
	color: #64748b;
}

[data-theme="dark"] .psa-dir-modal__close:hover {
	color: #f1f5f9;
}