/**
 * Age of Dinosaurs — Dinosaur Directory Stylesheet
 *
 * Implements styling for the species discovery interface:
 * - Header introduction & search
 * - Desktop sticky filter sidebar
 * - Mobile bottom-sheet / drawer filter panel
 * - Dynamic active filter badges & result count
 * - 3-column responsive Dinosaur Card grid
 * - Accessible numbered server-side pagination
 * - Dignified empty & no-results states
 *
 * Adheres strictly to Design Tokens, WCAG 2.2 AA contrast, min 44px touch targets,
 * and @media (prefers-reduced-motion: reduce).
 *
 * @package AgeOfDinosaurs
 */

/* ==========================================================================
   1. Directory Header (.directory-header)
   ========================================================================== */
.directory-header {
	padding-top: calc(var(--nav-height, 66px) + var(--nav-top-offset, 14px) + 1.75rem);
	padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
	border-bottom: 1px solid var(--color-sand-medium, #E4DFD3);
	background-color: var(--color-surface, #FFFFFF);
}

.directory-header__dot {
	display: inline-block;
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background-color: var(--color-amber, #E89B1C);
	box-shadow: 0 0 6px rgba(232, 155, 28, 0.6);
	margin-right: var(--space-2, 0.5rem);
}

.directory-header__title {
	font-family: var(--font-family-display, Georgia, serif);
	font-size: clamp(2.25rem, 4.5vw, 3.5rem);
	font-weight: 800;
	line-height: 1.15;
	letter-spacing: -0.02em;
	color: var(--color-deep-fern, #1E3A2F);
	margin: 0 0 var(--space-3, 0.75rem) 0;
}

.directory-header__lead {
	font-family: var(--font-family-body, sans-serif);
	font-size: clamp(1rem, 1.2vw, 1.1875rem);
	line-height: 1.6;
	color: var(--color-espresso, #2E2A22);
	max-width: 72ch;
	margin: 0;
	opacity: 0.9;
}

/* Prominent Archive Search Bar in Directory Header */
.directory-header__search-container {
	max-width: 680px;
	margin-top: var(--space-5, 1.25rem);
}

.directory-header-search-form {
	width: 100%;
}

.directory-header-search-box {
	position: relative;
	display: flex;
	align-items: center;
	background: var(--color-chalk, #FFFAF0);
	border: 1.5px solid var(--color-dune, #D8CCB2);
	border-radius: var(--radius-pill, 9999px);
	padding: 4px 6px 4px 16px;
	box-shadow: 0 4px 16px rgba(46, 42, 34, 0.06);
	transition: border-color var(--motion-duration-fast, 150ms) var(--motion-ease-standard),
	            box-shadow var(--motion-duration-fast, 150ms) var(--motion-ease-standard);
}

.directory-header-search-box:focus-within {
	border-color: var(--color-fern, #3F7D4E);
	box-shadow: 0 0 0 3px rgba(63, 125, 78, 0.18), 0 8px 24px rgba(46, 42, 34, 0.1);
}

.directory-header-search-box__icon {
	flex-shrink: 0;
	color: var(--color-stone, #6F6858);
	margin-right: 10px;
	pointer-events: none;
}

.directory-header-search-box__input {
	flex: 1;
	border: none !important;
	outline: none !important;
	background: transparent !important;
	box-shadow: none !important;
	padding: 0.625rem 0.5rem 0.625rem 0 !important;
	font-family: var(--font-family-body, "Nunito Sans", sans-serif);
	font-size: 1rem;
	color: var(--color-espresso, #2E2A22);
	min-width: 0;
	height: 44px;
}

.directory-header-search-box__input::placeholder {
	color: var(--color-stone, #6F6858);
	opacity: 0.85;
}

.directory-header-search-box__clear {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border-radius: 50%;
	background-color: rgba(46, 42, 34, 0.08);
	color: var(--color-espresso, #2E2A22);
	text-decoration: none;
	font-size: 0.8125rem;
	line-height: 1;
	margin-right: 8px;
	flex-shrink: 0;
	transition: background-color 150ms ease, color 150ms ease;
}

.directory-header-search-box__clear:hover {
	background-color: var(--color-clay, #C65D3A);
	color: #FFFFFF;
}

.directory-header-search-box__btn {
	flex-shrink: 0;
	min-height: 44px !important;
	padding: 0 1.5rem !important;
	border-radius: var(--radius-pill, 9999px) !important;
	font-weight: 700 !important;
}


/* ==========================================================================
   2. Main Layout Grid (.directory-layout)
   ========================================================================== */
.directory-main {
	padding-top: clamp(1.5rem, 3vw, 2.5rem);
	padding-bottom: clamp(3rem, 6vw, 5rem);
	background-color: var(--color-sand-light, #F7F4EE);
}

.directory-layout {
	display: grid;
	grid-template-columns: 290px 1fr;
	gap: clamp(1.5rem, 3vw, 2.5rem);
	align-items: start;
}


/* ==========================================================================
   3. Desktop Filter Sidebar (.directory-sidebar)
   ========================================================================== */
.directory-sidebar {
	position: sticky;
	top: calc(var(--nav-height, 68px) + 1.5rem);
	background-color: #FFFFFF;
	border: 1px solid var(--color-sand-medium, #E4DFD3);
	border-radius: var(--radius-xl, 16px);
	padding: var(--space-5, 1.25rem);
	box-shadow: var(--shadow-sm, 0 2px 8px rgba(46, 42, 34, 0.05));
	max-height: calc(100vh - var(--nav-height, 68px) - 3rem);
	overflow-y: auto;
}

.directory-sidebar__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-bottom: var(--space-3, 0.75rem);
	margin-bottom: var(--space-4, 1rem);
	border-bottom: 1px solid var(--color-sand-medium, #E4DFD3);
}

.directory-sidebar__title {
	font-family: var(--font-family-display, Georgia, serif);
	font-size: 1.125rem;
	font-weight: 700;
	color: var(--color-deep-fern, #1E3A2F);
	margin: 0;
	display: flex;
	align-items: center;
	gap: var(--space-2, 0.5rem);
}

.directory-sidebar__close-btn {
	display: none; /* Visible only on mobile */
	background: transparent;
	border: none;
	font-size: 1.25rem;
	color: var(--color-espresso, #2E2A22);
	cursor: pointer;
	padding: 0.5rem;
	min-width: 44px;
	min-height: 44px;
	align-items: center;
	justify-content: center;
	border-radius: var(--radius-sm, 4px);
}

.directory-sidebar__close-btn:focus-visible {
	outline: 2px solid var(--color-fern, #3F7D4E);
}

/* Filter Groups */
.directory-filter-group {
	margin-bottom: var(--space-5, 1.25rem);
}

.directory-filter-group:last-of-type {
	margin-bottom: var(--space-6, 1.5rem);
}

.directory-filter-group__label {
	display: block;
	font-family: var(--font-family-body, sans-serif);
	font-size: 0.8125rem;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--color-espresso, #2E2A22);
	margin-bottom: var(--space-2, 0.5rem);
}

.directory-filter-fieldset {
	border: none;
	padding: 0;
	margin: 0;
}

/* Search Box inside Sidebar */
.directory-search-box {
	display: flex;
	align-items: center;
	position: relative;
	background-color: #FFFFFF;
	border: 1px solid var(--color-sand-medium, #E4DFD3);
	border-radius: var(--radius-md, 8px);
	overflow: hidden;
	transition: border-color 150ms ease, box-shadow 150ms ease;
}

.directory-search-box:focus-within {
	border-color: var(--color-fern, #3F7D4E);
	box-shadow: 0 0 0 3px rgba(63, 125, 78, 0.15);
}

.directory-search-box__input {
	border: none !important;
	outline: none !important;
	box-shadow: none !important;
	background: transparent !important;
	padding: 0.5rem 0.75rem !important;
	font-size: 0.875rem !important;
	flex-grow: 1;
	min-width: 0;
	height: 42px;
}

.directory-search-box__btn {
	border-radius: 0 !important;
	min-height: 42px !important;
	padding: 0 0.75rem !important;
	flex-shrink: 0;
}

/* Option Checkbox / Radio List */
.directory-filter-options {
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.directory-filter-option {
	display: flex;
	align-items: center;
	padding: 4px 6px;
	border-radius: var(--radius-sm, 4px);
	cursor: pointer;
	font-size: 0.875rem;
	transition: background-color 150ms ease;
}

.directory-filter-option:hover {
	background-color: rgba(46, 42, 34, 0.04);
}

.directory-filter-option input[type="radio"],
.directory-filter-option input[type="checkbox"] {
	margin-right: 8px;
	accent-color: var(--color-fern, #3F7D4E);
	width: 16px;
	height: 16px;
}

.directory-filter-option__count {
	font-family: var(--font-family-mono, monospace);
	font-size: 0.75rem;
	color: var(--color-text-muted, #736E65);
	margin-left: 4px;
}

.directory-filter-select {
	width: 100%;
	height: 42px;
	font-size: 0.875rem;
	border-color: var(--color-sand-medium, #E4DFD3);
	border-radius: var(--radius-md, 8px);
	background-color: #FFFFFF;
}

.directory-filter-actions {
	display: flex;
	flex-direction: column;
	gap: var(--space-2, 0.5rem);
	padding-top: var(--space-2, 0.5rem);
	border-top: 1px solid var(--color-sand-medium, #E4DFD3);
}

.directory-filter-apply-btn {
	width: 100%;
	min-height: 44px;
}

.directory-filter-reset-btn {
	text-align: center;
	font-size: 0.8125rem;
	padding: 0.25rem 0;
	color: var(--color-text-muted, #736E65);
}


/* ==========================================================================
   4. Mobile Filter Bar & Drawer (.directory-mobile-bar)
   ========================================================================== */
.directory-mobile-bar {
	display: none; /* Desktop default */
}

@media (max-width: 1023px) {
	.directory-layout {
		grid-template-columns: 1fr;
	}

	.directory-mobile-bar {
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: var(--space-3, 0.75rem);
		margin-bottom: var(--space-5, 1.25rem);
	}

	.directory-mobile-toggle {
		display: inline-flex;
		align-items: center;
		gap: 6px;
		min-height: 44px;
		padding: 0 1rem;
		font-weight: 700;
	}

	.directory-mobile-toggle__badge {
		background-color: var(--color-amber, #E89B1C);
		color: var(--color-espresso, #2E2A22);
		font-size: 0.75rem;
		font-weight: 800;
		padding: 1px 7px;
		border-radius: 12px;
		margin-left: 2px;
	}

	.directory-mobile-sort {
		flex-grow: 1;
		max-width: 220px;
	}

	.directory-mobile-sort__select {
		width: 100%;
		height: 44px;
		font-size: 0.875rem;
		border-radius: var(--radius-md, 8px);
		background-color: #FFFFFF;
	}

	/* Mobile Drawer Sheet */
	.directory-sidebar {
		position: fixed;
		inset: 0;
		top: 0;
		z-index: var(--z-modal, 2050);
		background-color: rgba(46, 42, 34, 0.6);
		backdrop-filter: blur(8px);
		border: none;
		border-radius: 0;
		padding: 0;
		max-height: 100vh;
		opacity: 0;
		pointer-events: none;
		transition: opacity 200ms ease;
		display: flex;
		flex-direction: column;
		justify-content: flex-end;
	}

	.directory-sidebar--open {
		opacity: 1;
		pointer-events: auto;
	}

	.directory-sidebar__inner {
		background-color: #FFFFFF;
		border-radius: 20px 20px 0 0;
		padding: var(--space-5, 1.25rem);
		max-height: 82vh;
		overflow-y: auto;
		transform: translateY(100%);
		transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
		box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.2);
	}

	.directory-sidebar--open .directory-sidebar__inner {
		transform: translateY(0);
	}

	.directory-sidebar__close-btn {
		display: flex;
	}

	/* When modal is open, prevent background body scrolling */
	body.directory-filters-open {
		overflow: hidden;
	}
}


/* ==========================================================================
   5. Summary Bar & Sorting (.directory-summary-bar)
   ========================================================================== */
.directory-summary-bar {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: var(--space-4, 1rem);
	padding-bottom: var(--space-4, 1rem);
	margin-bottom: var(--space-6, 1.5rem);
	border-bottom: 1px solid var(--color-sand-medium, #E4DFD3);
}

.directory-summary-bar__info {
	display: flex;
	flex-direction: column;
	gap: var(--space-2, 0.5rem);
}

.directory-summary-bar__count {
	font-family: var(--font-family-display, Georgia, serif);
	font-size: 1.375rem;
	font-weight: 700;
	color: var(--color-deep-fern, #1E3A2F);
	margin: 0;
}

.directory-active-chips {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px;
	margin-top: 2px;
}

.directory-active-chips__label {
	font-size: 0.75rem;
	font-weight: 700;
	color: var(--color-text-muted, #736E65);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	margin-right: 2px;
}

.directory-active-chip {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background-color: #FFFFFF !important;
	border: 1px solid var(--color-sand-medium, #E4DFD3) !important;
	padding: 3px 8px !important;
	border-radius: 16px !important;
	font-size: 0.8125rem !important;
	color: var(--color-espresso, #2E2A22) !important;
}

.directory-active-chip__remove {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background-color: rgba(46, 42, 34, 0.08);
	color: var(--color-espresso, #2E2A22);
	text-decoration: none;
	font-size: 0.6875rem;
	line-height: 1;
	transition: background-color 150ms ease, color 150ms ease;
}

.directory-active-chip__remove:hover {
	background-color: var(--color-clay, #C65D3A);
	color: #FFFFFF;
}

.directory-clear-all-link {
	font-size: 0.8125rem;
	color: var(--color-clay, #C65D3A);
	text-decoration: underline;
	padding: 0 4px;
}

/* Desktop Sort Dropdown */
.directory-summary-bar__sort {
	display: flex;
	align-items: center;
	gap: var(--space-2, 0.5rem);
	flex-shrink: 0;
}

.directory-sort-label {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text-muted, #736E65);
	white-space: nowrap;
}

.directory-sort-select {
	height: 40px;
	font-size: 0.875rem;
	border-radius: var(--radius-md, 8px);
	border-color: var(--color-sand-medium, #E4DFD3);
	background-color: #FFFFFF;
	padding-right: 2rem;
}

@media (max-width: 1023px) {
	.directory-summary-bar__sort {
		display: none; /* Managed by mobile bar */
	}
}


/* ==========================================================================
   6. Dinosaur Card Grid & Cards (.directory-grid, .dinosaur-card)
   ========================================================================== */
.directory-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--space-6, 1.5rem);
}

@media (max-width: 1200px) {
	.directory-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 640px) {
	.directory-grid {
		grid-template-columns: 1fr;
	}
}

.dinosaur-card {
	background-color: var(--color-chalk, #FFFAF0);
	border: 1px solid var(--color-dune, #D8CCB2);
	border-radius: var(--radius-xl, 16px);
	overflow: hidden;
	display: flex;
	flex-direction: column;
	height: 100%;
	transition: transform var(--motion-duration-fast, 150ms) ease, box-shadow var(--motion-duration-fast, 150ms) ease, border-color var(--motion-duration-fast, 150ms) ease;
}

.dinosaur-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 12px 32px rgba(46, 42, 34, 0.12);
	border-color: var(--color-fern, #3F7D4E);
}

/* Card Artwork Frame */
.dinosaur-card__media {
	position: relative;
	aspect-ratio: 16 / 10;
	background-color: var(--color-sand-medium, #E4DFD3);
	overflow: hidden;
}

.dinosaur-card__media-link {
	display: block;
	width: 100%;
	height: 100%;
}

.dinosaur-card__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	display: block;
	transition: transform 250ms ease;
}

.dinosaur-card:hover .dinosaur-card__img {
	transform: scale(1.03);
}

.dinosaur-card__media-chips {
	position: absolute;
	bottom: 8px;
	left: 8px;
	display: flex;
	gap: 4px;
	z-index: 2;
}

/* Card Body Content */
.dinosaur-card__body {
	padding: var(--space-5, 1.25rem);
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

.dinosaur-card__group-meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--space-2, 0.5rem);
}

.dinosaur-card__region {
	font-family: var(--font-family-mono, monospace);
	font-size: 0.75rem;
	color: var(--color-text-muted, #736E65);
}

.dinosaur-card__title {
	font-family: var(--font-family-display, Georgia, serif);
	font-size: 1.375rem;
	font-weight: 700;
	line-height: 1.25;
	margin: 0 0 2px 0;
}

.dinosaur-card__title-link {
	color: var(--color-deep-fern, #1E3A2F);
	text-decoration: none;
	transition: color 150ms ease;
}

.dinosaur-card__title-link:hover {
	color: var(--color-clay, #C65D3A);
}

.dinosaur-card__scientific {
	font-size: 0.9375rem;
	color: var(--color-text-secondary, #5C574E);
	margin: 0 0 var(--space-3, 0.75rem) 0;
}

.dinosaur-card__binomial {
	font-style: italic;
	font-weight: 600;
}

.dinosaur-card__pronounce {
	font-family: var(--font-family-mono, monospace);
	font-size: 0.75rem;
	opacity: 0.85;
	margin-left: 4px;
}

/* Micro Quick Facts Matrix */
.dinosaur-card__specs {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 4px;
	background-color: rgba(46, 42, 34, 0.04);
	border: 1px solid rgba(46, 42, 34, 0.06);
	border-radius: var(--radius-sm, 6px);
	padding: 6px 4px;
	margin-bottom: var(--space-3, 0.75rem);
}

.dinosaur-card__spec {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
}

.dinosaur-card__spec-label {
	font-family: var(--font-family-mono, monospace);
	font-size: 0.625rem;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--color-text-muted, #736E65);
}

.dinosaur-card__spec-val {
	font-family: var(--font-family-display, Georgia, serif);
	font-size: 0.8125rem;
	font-weight: 700;
	color: var(--color-espresso, #2E2A22);
	white-space: nowrap;
}

.dinosaur-card__summary {
	font-size: 0.875rem;
	line-height: 1.5;
	color: var(--color-espresso, #2E2A22);
	margin: 0 0 var(--space-4, 1rem) 0;
	flex-grow: 1;
	opacity: 0.9;
}

.dinosaur-card__footer {
	margin-top: auto;
	padding-top: var(--space-3, 0.75rem);
	border-top: 1px solid var(--color-sand-medium, #E4DFD3);
	display: flex;
	align-items: center;
	gap: var(--space-2, 0.5rem);
}

.dinosaur-card__action {
	flex: 1 1 auto;
	text-align: center;
}

.dinosaur-card__compare-link {
	flex: 0 0 auto;
	padding: 0.45rem 0.65rem;
	font-size: var(--text-xs, 0.75rem);
	font-weight: 600;
	text-decoration: none;
	color: var(--color-earth-slate, #4A3B32);
	border: 1px solid var(--color-sand-medium, #E4DFD3);
	border-radius: var(--radius-sm, 4px);
	background: var(--color-surface, #F5F1E8);
	transition: background-color var(--transition-fast, 150ms ease), border-color var(--transition-fast, 150ms ease), color var(--transition-fast, 150ms ease);
	white-space: nowrap;
}

.dinosaur-card__compare-link:hover,
.dinosaur-card__compare-link:focus-visible {
	background: var(--color-sand-light, #FAF7F2);
	border-color: var(--color-moss-forest, #2B3820);
	color: var(--color-moss-forest, #2B3820);
}


/* ==========================================================================
   7. Directory Pagination (.directory-pagination)
   Inherits canonical .pagination component styles from components.css.
   ========================================================================== */
.directory-pagination-wrapper {
	width: 100%;
	display: flex;
	justify-content: center;
}


/* ==========================================================================
   8. Empty States (.directory-no-results, .directory-empty-db)
   ========================================================================== */
.directory-no-results,
.directory-empty-db {
	text-align: center;
	padding: clamp(2.5rem, 5vw, 4rem) var(--space-5, 1.25rem);
	max-width: 600px;
	margin: 2rem auto;
	border-radius: var(--radius-xl, 16px);
}

.directory-no-results__icon {
	color: var(--color-clay, #C65D3A);
	margin-bottom: var(--space-3, 0.75rem);
	display: flex;
	justify-content: center;
}

.directory-no-results__actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-3, 0.75rem);
	justify-content: center;
	margin-top: var(--space-5, 1.25rem);
}


/* ==========================================================================
   9. Accessibility: Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
	.dinosaur-card,
	.dinosaur-card__img,
	.directory-sidebar__inner,
	.directory-pagination .page-numbers {
		transition: none !important;
		transform: none !important;
	}

	.dinosaur-card:hover,
	.dinosaur-card:hover .dinosaur-card__img {
		transform: none !important;
	}

	.directory-header__dot {
		box-shadow: none !important;
	}
}