/* =========================================================================
   Bibliothèque de Documents Dynamique — styles publics
   Utilise : container queries, color-mix(), @starting-style, :has(),
   backdrop-filter, native <dialog>, View Transitions (déclenchées en JS).
   ========================================================================= */

.ddl-library {
	--ddl-primary: #3c5595;
	--ddl-accent: #dfaf49;
	--ddl-radius: 16px;
	--ddl-bg: #f6f8fc;
	--ddl-surface: #ffffff;
	--ddl-text: #16213e;
	--ddl-text-muted: #5b6478;
	--ddl-border: color-mix(in srgb, var(--ddl-primary) 12%, white);
	--ddl-shadow: 0 1px 2px rgba(16, 24, 60, .04), 0 10px 30px -12px rgba(16, 24, 60, .18);

	container-type: inline-size;
	color: var(--ddl-text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	max-width: 100%;
	box-sizing: border-box;
	position: relative;
}

@media (prefers-color-scheme: dark) {
	.ddl-library.ddl-theme-auto {
		--ddl-bg: #0f1524;
		--ddl-surface: #171f33;
		--ddl-text: #eef1fa;
		--ddl-text-muted: #a4adc4;
		--ddl-border: color-mix(in srgb, var(--ddl-accent) 25%, #171f33);
		--ddl-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .55);
	}
}
.ddl-library.ddl-theme-sombre {
	--ddl-bg: #0f1524;
	--ddl-surface: #171f33;
	--ddl-text: #eef1fa;
	--ddl-text-muted: #a4adc4;
	--ddl-border: color-mix(in srgb, var(--ddl-accent) 25%, #171f33);
	--ddl-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .55);
}

.ddl-library.ddl-style-net {
	--ddl-radius: 6px;
}

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

.ddl-library__title {
	font-size: clamp(1.3rem, 1rem + 1vw, 1.9rem);
	font-weight: 700;
	margin: 0 0 1.1rem;
	color: var(--ddl-text);
}

/* ---------------------------------------------------------------------
   Barre d'outils : recherche + tri
   ------------------------------------------------------------------- */

.ddl-toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: .75rem;
	align-items: center;
	margin-bottom: .85rem;
}

.ddl-search {
	position: relative;
	flex: 1 1 280px;
	min-width: 220px;
}

.ddl-search__icon {
	position: absolute;
	left: 14px;
	top: 50%;
	translate: 0 -50%;
	width: 18px;
	height: 18px;
	color: var(--ddl-text-muted);
	pointer-events: none;
}

.ddl-search__input {
	width: 100%;
	padding: .7rem 2.4rem .7rem 2.6rem;
	border-radius: calc(var(--ddl-radius) * .7);
	border: 1.5px solid var(--ddl-border);
	background: var(--ddl-surface);
	color: var(--ddl-text);
	font-size: .95rem;
	transition: border-color .18s ease, box-shadow .18s ease;
}

.ddl-search__input:focus {
	outline: none;
	border-color: var(--ddl-accent);
	box-shadow: 0 0 0 4px color-mix(in srgb, var(--ddl-accent) 18%, transparent);
}

.ddl-search__clear {
	position: absolute;
	right: 8px;
	top: 50%;
	translate: 0 -50%;
	width: 26px;
	height: 26px;
	border: none;
	border-radius: 50%;
	background: transparent;
	color: var(--ddl-text-muted);
	font-size: 1.2rem;
	line-height: 1;
	cursor: pointer;
	display: none;
	transition: background .15s ease;
}

.ddl-search:has(.ddl-search__input:not(:placeholder-shown)) .ddl-search__clear {
	display: block;
}

.ddl-search__clear:hover {
	background: color-mix(in srgb, var(--ddl-accent) 12%, transparent);
}

.ddl-sort__select {
	padding: .65rem 2rem .65rem .9rem;
	border-radius: calc(var(--ddl-radius) * .7);
	border: 1.5px solid var(--ddl-border);
	background: var(--ddl-surface);
	color: var(--ddl-text);
	font-size: .9rem;
	cursor: pointer;
}

/* ---------------------------------------------------------------------
   Filtres par sujet (puces avec icône)
   ------------------------------------------------------------------- */

.ddl-filters {
	display: flex;
	flex-wrap: wrap;
	gap: .5rem;
	margin-bottom: 1.1rem;
}

.ddl-filter-chip {
	--chip-color: var(--ddl-accent);
	display: inline-flex;
	align-items: center;
	gap: .4rem;
	padding: .45rem .85rem .45rem .6rem;
	border-radius: 999px;
	border: 1.5px solid var(--ddl-border);
	background: var(--ddl-surface);
	color: var(--ddl-text-muted);
	font-size: .85rem;
	font-weight: 600;
	cursor: pointer;
	transition: background .18s ease, color .18s ease, border-color .18s ease, transform .12s ease;
}

.ddl-filter-chip__icon {
	display: inline-flex;
	width: 16px;
	height: 16px;
	color: var(--chip-color);
	transition: color .18s ease;
}

.ddl-filter-chip:hover {
	transform: translateY(-1px);
	border-color: var(--chip-color);
}

.ddl-filter-chip.is-active {
	background: color-mix(in srgb, var(--chip-color) 14%, var(--ddl-surface));
	border-color: var(--chip-color);
	color: var(--ddl-text);
}

.ddl-filter-chip.is-active .ddl-filter-chip__icon {
	color: var(--chip-color);
}

.ddl-results-count {
	margin: 0 0 .75rem;
	font-size: .82rem;
	color: var(--ddl-text-muted);
}

/* ---------------------------------------------------------------------
   Grille de documents (container queries : indépendante du viewport)
   ------------------------------------------------------------------- */

.ddl-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1.1rem;
	position: relative;
}

@container (max-width: 920px) {
	.ddl-grid { grid-template-columns: repeat(3, 1fr); }
}
@container (max-width: 680px) {
	.ddl-grid { grid-template-columns: repeat(2, 1fr); }
}
@container (max-width: 420px) {
	.ddl-grid { grid-template-columns: 1fr; }
}

.ddl-grid[data-columns="2"] { grid-template-columns: repeat(2, 1fr); }
.ddl-grid[data-columns="3"] { grid-template-columns: repeat(3, 1fr); }
.ddl-grid[data-columns="5"] { grid-template-columns: repeat(5, 1fr); }

.ddl-skeleton {
	display: contents;
}

.ddl-skeleton__card {
	height: 230px;
	border-radius: var(--ddl-radius);
	background: linear-gradient(100deg, var(--ddl-surface) 30%, color-mix(in srgb, var(--ddl-accent) 8%, var(--ddl-surface)) 50%, var(--ddl-surface) 70%);
	background-size: 200% 100%;
	animation: ddl-shimmer 1.3s ease-in-out infinite;
	border: 1px solid var(--ddl-border);
}

@keyframes ddl-shimmer {
	0% { background-position: 200% 0; }
	100% { background-position: -200% 0; }
}

/* ---------------------------------------------------------------------
   Carte document
   ------------------------------------------------------------------- */

.ddl-card {
	--card-color: var(--ddl-accent);
	position: relative;
	display: flex;
	flex-direction: column;
	background: var(--ddl-surface);
	border: 1px solid var(--ddl-border);
	border-radius: var(--ddl-radius);
	box-shadow: var(--ddl-shadow);
	overflow: hidden;
	cursor: pointer;
	text-align: left;
	padding: 0;
	font: inherit;
	color: inherit;
	transition: transform .22s cubic-bezier(.2, .7, .3, 1), box-shadow .22s ease, border-color .22s ease;
}

@starting-style {
	.ddl-card {
		opacity: 0;
		transform: translateY(10px) scale(.98);
	}
}

.ddl-card {
	opacity: 1;
	transition: transform .22s cubic-bezier(.2, .7, .3, 1), box-shadow .22s ease, border-color .22s ease, opacity .3s ease;
}

.ddl-card:hover,
.ddl-card:focus-visible {
	transform: translateY(-5px);
	border-color: color-mix(in srgb, var(--card-color) 45%, var(--ddl-border));
	box-shadow: 0 18px 34px -16px color-mix(in srgb, var(--card-color) 35%, rgba(16, 24, 60, .35));
}

.ddl-card:focus-visible {
	outline: 3px solid color-mix(in srgb, var(--card-color) 60%, transparent);
	outline-offset: 2px;
}

.ddl-card__preview {
	position: relative;
	aspect-ratio: 16 / 10;
	background:
		radial-gradient(120% 120% at 15% 0%, color-mix(in srgb, var(--card-color) 16%, transparent), transparent 60%),
		color-mix(in srgb, var(--card-color) 6%, var(--ddl-bg));
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}

.ddl-card__preview img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform .35s ease;
}

.ddl-card:hover .ddl-card__preview img {
	transform: scale(1.06);
}

.ddl-card__preview-icon {
	width: 30%;
	max-width: 64px;
	color: color-mix(in srgb, var(--card-color) 70%, var(--ddl-text));
	opacity: .85;
}

.ddl-card__ext-badge {
	position: absolute;
	bottom: 10px;
	right: 10px;
	background: color-mix(in srgb, var(--card-color) 85%, black 5%);
	color: #fff;
	font-size: .68rem;
	font-weight: 700;
	letter-spacing: .03em;
	padding: .2rem .5rem;
	border-radius: 6px;
}

.ddl-card__subject-badge {
	position: absolute;
	top: 10px;
	left: 10px;
	display: inline-flex;
	align-items: center;
	gap: .3rem;
	background: color-mix(in srgb, var(--ddl-surface) 85%, transparent);
	backdrop-filter: blur(6px);
	-webkit-backdrop-filter: blur(6px);
	color: var(--card-color);
	font-size: .68rem;
	font-weight: 700;
	padding: .25rem .55rem .25rem .4rem;
	border-radius: 999px;
	border: 1px solid color-mix(in srgb, var(--card-color) 30%, transparent);
}

.ddl-card__subject-badge svg {
	width: 13px;
	height: 13px;
}

.ddl-card__body {
	padding: .9rem 1.05rem 1.1rem;
	display: flex;
	flex-direction: column;
	gap: .35rem;
	flex: 1;
}

.ddl-card__title {
	font-size: 1rem;
	font-weight: 700;
	margin: 0;
	line-height: 1.35;
	color: var(--ddl-text);
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.ddl-card__excerpt {
	font-size: .83rem;
	color: var(--ddl-text-muted);
	margin: 0;
	line-height: 1.45;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.ddl-card__footer {
	margin-top: auto;
	padding-top: .5rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: .74rem;
	color: var(--ddl-text-muted);
}

.ddl-card__date {
	display: inline-flex;
	align-items: center;
	gap: .3rem;
}

/* ---------------------------------------------------------------------
   État vide / erreur
   ------------------------------------------------------------------- */

.ddl-empty-state,
.ddl-error-state {
	grid-column: 1 / -1;
	text-align: center;
	padding: 3rem 1rem;
	color: var(--ddl-text-muted);
}

.ddl-empty-state svg,
.ddl-error-state svg {
	width: 44px;
	height: 44px;
	margin-bottom: .75rem;
	opacity: .55;
}

/* ---------------------------------------------------------------------
   Pagination
   ------------------------------------------------------------------- */

.ddl-pagination {
	display: flex;
	justify-content: center;
	margin-top: 1.5rem;
}

.ddl-load-more {
	padding: .7rem 1.6rem;
	border-radius: 999px;
	border: 1.5px solid var(--ddl-border);
	background: var(--ddl-surface);
	color: var(--ddl-text);
	font-weight: 600;
	font-size: .88rem;
	cursor: pointer;
	transition: background .18s ease, border-color .18s ease, transform .12s ease;
}

.ddl-load-more:hover {
	border-color: var(--ddl-accent);
	transform: translateY(-1px);
}

.ddl-load-more.is-loading {
	opacity: .6;
	pointer-events: none;
}

/* ---------------------------------------------------------------------
   Fenêtre de lecture (modale native <dialog>)
   ------------------------------------------------------------------- */

.ddl-modal {
	border: none;
	padding: 0;
	border-radius: calc(var(--ddl-radius) + 4px);
	width: min(880px, 92vw);
	max-height: 88vh;
	background: var(--ddl-surface);
	color: var(--ddl-text);
	box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .45);
	opacity: 0;
	translate: 0 16px;
	transition: opacity .22s ease, translate .28s cubic-bezier(.2, .8, .3, 1), overlay .28s allow-discrete, display .28s allow-discrete;
}

.ddl-modal[open] {
	opacity: 1;
	translate: 0 0;
}

@starting-style {
	.ddl-modal[open] {
		opacity: 0;
		translate: 0 16px;
	}
}

.ddl-modal::backdrop {
	background: color-mix(in srgb, #0a0e1a 65%, transparent);
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	opacity: 0;
	transition: opacity .25s ease, overlay .25s allow-discrete, display .25s allow-discrete;
}

.ddl-modal[open]::backdrop {
	opacity: 1;
}

@starting-style {
	.ddl-modal[open]::backdrop {
		opacity: 0;
	}
}

.ddl-modal__inner {
	display: flex;
	flex-direction: column;
	max-height: 88vh;
}

.ddl-modal__close {
	position: absolute;
	top: 14px;
	right: 14px;
	width: 34px;
	height: 34px;
	border-radius: 50%;
	border: none;
	background: color-mix(in srgb, var(--ddl-text) 8%, var(--ddl-surface));
	color: var(--ddl-text);
	font-size: 1.3rem;
	line-height: 1;
	cursor: pointer;
	z-index: 2;
	transition: background .15s ease, transform .15s ease;
}

.ddl-modal__close:hover {
	background: color-mix(in srgb, var(--ddl-text) 16%, var(--ddl-surface));
	transform: rotate(90deg);
}

.ddl-modal__header {
	display: flex;
	align-items: flex-start;
	gap: .8rem;
	padding: 1.3rem 3.2rem 1rem 1.5rem;
	border-bottom: 1px solid var(--ddl-border);
}

.ddl-modal__icon {
	display: inline-flex;
	width: 34px;
	height: 34px;
	flex: none;
	color: var(--ddl-accent);
}

.ddl-modal__icon svg {
	width: 100%;
	height: 100%;
}

.ddl-modal__title {
	margin: 0 0 .2rem;
	font-size: 1.15rem;
	font-weight: 700;
}

.ddl-modal__meta {
	margin: 0;
	font-size: .8rem;
	color: var(--ddl-text-muted);
}

.ddl-modal__body {
	flex: 1;
	min-height: 200px;
	overflow: auto;
	background: var(--ddl-bg);
	display: flex;
	align-items: stretch;
	justify-content: center;
}

.ddl-modal__body iframe {
	width: 100%;
	min-height: 60vh;
	border: none;
	display: block;
}

.ddl-modal__body img {
	max-width: 100%;
	max-height: 75vh;
	margin: auto;
	object-fit: contain;
}

.ddl-modal__body .ddl-modal__unavailable {
	margin: auto;
	text-align: center;
	padding: 3rem 1.5rem;
	color: var(--ddl-text-muted);
}

.ddl-modal__footer {
	display: flex;
	gap: .6rem;
	padding: 1rem 1.5rem;
	border-top: 1px solid var(--ddl-border);
	justify-content: flex-end;
}

.ddl-modal__footer a {
	padding: .55rem 1.1rem;
	border-radius: 999px;
	font-size: .84rem;
	font-weight: 600;
	text-decoration: none;
	border: 1.5px solid var(--ddl-border);
	color: var(--ddl-text);
	transition: background .15s ease, border-color .15s ease;
}

.ddl-modal__footer a:hover {
	border-color: var(--ddl-accent);
	background: color-mix(in srgb, var(--ddl-accent) 10%, transparent);
}

.ddl-modal__download {
	background: var(--ddl-primary);
	border-color: var(--ddl-primary) !important;
	color: #fff !important;
}

.ddl-modal__download:hover {
	background: color-mix(in srgb, var(--ddl-primary) 85%, black);
}

/* Accessibilité : respecte la préférence de mouvement réduit */
@media (prefers-reduced-motion: reduce) {
	.ddl-card,
	.ddl-modal,
	.ddl-modal::backdrop,
	.ddl-card__preview img,
	.ddl-skeleton__card {
		transition: none !important;
		animation: none !important;
	}
}

.screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}

::view-transition-old(ddl-grid),
::view-transition-new(ddl-grid) {
	animation-duration: .25s;
}