/* E-Paper front end. Colours and sizes live in :root; each view has its own section below. */

:root {
	--dtm-ep-accent: #1d4ed8;
	--dtm-ep-accent-soft: #eef3ff;
	--dtm-ep-accent-ink: #ffffff;
	--dtm-ep-ink: #111827;
	--dtm-ep-muted: #6b7280;
	--dtm-ep-line: #e5e7eb;
	--dtm-ep-panel: #ffffff;
	--dtm-ep-bg: #f4f5f7;
	--dtm-ep-radius: 14px;
	--dtm-ep-max: 1200px;
	--dtm-ep-shadow: 0 1px 2px rgba(17, 24, 39, 0.06), 0 8px 24px rgba(17, 24, 39, 0.08);
	--dtm-ep-shadow-hover: 0 2px 4px rgba(17, 24, 39, 0.08), 0 16px 36px rgba(17, 24, 39, 0.14);
}

/* ---------- Shared ---------- */

.dtm-ep {
	box-sizing: border-box;
	max-width: var(--dtm-ep-max);
	margin: 0 auto;
	padding: 28px 20px 72px;
	color: var(--dtm-ep-ink);
	font-size: 16px;
	line-height: 1.5;
}

.dtm-ep *,
.dtm-ep *::before,
.dtm-ep *::after,
.dtm-ep-slider *,
.dtm-ep-slider *::before,
.dtm-ep-slider *::after {
	box-sizing: border-box;
}

.dtm-ep img {
	display: block;
	max-width: 100%;
	height: auto;
}

.dtm-ep a {
	color: inherit;
	text-decoration: none;
}

.dtm-ep-kicker {
	margin: 0 0 6px;
	color: var(--dtm-ep-accent);
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.dtm-ep-title {
	margin: 0 0 10px;
	font-size: clamp(28px, 4vw, 44px);
	font-weight: 800;
	line-height: 1.1;
	letter-spacing: -0.02em;
}

.dtm-ep-meta {
	margin: 0;
	color: var(--dtm-ep-muted);
	font-size: 15px;
}

.dtm-ep-head__pdf {
	margin: 14px 0 0;
}

.dtm-ep-empty {
	padding: 48px 0;
	text-align: center;
	color: var(--dtm-ep-muted);
}

.dtm-ep-crumbs {
	margin: 0 0 18px;
	color: var(--dtm-ep-muted);
	font-size: 14px;
}

.dtm-ep-crumbs a:hover {
	color: var(--dtm-ep-accent);
	text-decoration: underline;
}

/* The PDF download is a plain text link, not a button. */
.dtm-ep-textlink {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	color: var(--dtm-ep-accent);
	font-size: 15px;
	font-weight: 600;
	border-bottom: 1px solid transparent;
}

.dtm-ep-textlink:hover,
.dtm-ep-textlink:focus-visible {
	border-bottom-color: currentColor;
	outline: none;
}

/* ---------- Archive: header with city pills, then cards ---------- */

.dtm-ep-head {
	margin-bottom: 30px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--dtm-ep-line);
}

.dtm-ep-cities {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 18px;
}

.dtm-ep-cities a {
	padding: 7px 16px;
	border: 1px solid var(--dtm-ep-line);
	border-radius: 999px;
	background: var(--dtm-ep-panel);
	color: var(--dtm-ep-ink);
	font-size: 14px;
	font-weight: 600;
	transition: border-color 0.15s ease, color 0.15s ease;
}

.dtm-ep-cities a:hover {
	border-color: var(--dtm-ep-accent);
	color: var(--dtm-ep-accent);
}

.dtm-ep-cities a.is-active {
	border-color: var(--dtm-ep-accent);
	background: var(--dtm-ep-accent);
	color: var(--dtm-ep-accent-ink);
}

.dtm-ep-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
	gap: 26px;
}

.dtm-ep-card {
	margin: 0;
	overflow: hidden;
	background: var(--dtm-ep-panel);
	border-radius: var(--dtm-ep-radius);
	box-shadow: var(--dtm-ep-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dtm-ep-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--dtm-ep-shadow-hover);
}

.dtm-ep-card__link {
	display: block;
	height: 100%;
}

.dtm-ep-card__frame {
	position: relative;
	display: block;
	aspect-ratio: 3 / 4;
	overflow: hidden;
	background: var(--dtm-ep-bg);
}

.dtm-ep-card__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
	transition: transform 0.4s ease;
}

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

.dtm-ep-card__placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	color: var(--dtm-ep-muted);
}

.dtm-ep-card__badge {
	position: absolute;
	top: 12px;
	left: 12px;
	padding: 4px 10px;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.94);
	color: var(--dtm-ep-ink);
	font-size: 12px;
	font-weight: 700;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.dtm-ep-card__body {
	display: block;
	padding: 16px 18px 18px;
}

.dtm-ep-card__date {
	display: block;
	color: var(--dtm-ep-muted);
	font-size: 13px;
	font-weight: 600;
}

.dtm-ep-card__title {
	display: block;
	margin-top: 4px;
	font-size: 18px;
	font-weight: 700;
	line-height: 1.3;
}

.dtm-ep-pagination {
	margin-top: 36px;
	text-align: center;
}

/* ---------- Edition: papers as numbered tiles ---------- */

.dtm-ep-chunks {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
	gap: 24px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.dtm-ep-chunk {
	margin: 0;
}

.dtm-ep-tile {
	display: block;
}

.dtm-ep-tile__frame {
	position: relative;
	display: block;
	padding: 10px;
	background: var(--dtm-ep-panel);
	border-radius: var(--dtm-ep-radius);
	box-shadow: var(--dtm-ep-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dtm-ep-tile:hover .dtm-ep-tile__frame,
.dtm-ep-tile:focus-visible .dtm-ep-tile__frame {
	transform: translateY(-3px);
	box-shadow: var(--dtm-ep-shadow-hover);
}

.dtm-ep-tile:focus-visible {
	outline: none;
}

.dtm-ep-tile__img {
	width: 100%;
	height: auto;
	border-radius: 6px;
}

.dtm-ep-tile__no {
	position: absolute;
	top: 18px;
	left: 18px;
	min-width: 30px;
	padding: 3px 8px;
	border-radius: 999px;
	background: var(--dtm-ep-ink);
	color: #ffffff;
	font-size: 12px;
	font-weight: 700;
	text-align: center;
	font-variant-numeric: tabular-nums;
}

.dtm-ep-tile__name {
	display: block;
	margin-top: 12px;
	font-size: 17px;
	font-weight: 700;
}

.dtm-ep-tile:hover .dtm-ep-tile__name {
	color: var(--dtm-ep-accent);
}

/* ---------- Paper: the page, with the list of papers beside it ---------- */

.dtm-ep-paper__layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 300px;
	gap: 40px;
	align-items: start;
}

.dtm-ep-paper__frame {
	margin: 22px 0 0;
	padding: 14px;
	background: var(--dtm-ep-panel);
	border-radius: var(--dtm-ep-radius);
	box-shadow: var(--dtm-ep-shadow);
}

.dtm-ep-paper__link {
	display: block;
	cursor: zoom-in;
}

.dtm-ep-page__img {
	width: 100%;
	height: auto;
	border-radius: 6px;
}

.dtm-ep-paper__hint {
	margin: 14px 0 0;
	color: var(--dtm-ep-muted);
	font-size: 13px;
}

.dtm-ep-papers {
	position: sticky;
	top: 110px;
	padding: 20px;
	background: var(--dtm-ep-panel);
	border-radius: var(--dtm-ep-radius);
	box-shadow: var(--dtm-ep-shadow);
}

.dtm-ep-papers__head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: 8px;
	padding-bottom: 12px;
	border-bottom: 1px solid var(--dtm-ep-line);
}

.dtm-ep-papers__title {
	margin: 0;
	font-size: 18px;
	font-weight: 800;
}

.dtm-ep-papers__count {
	color: var(--dtm-ep-muted);
	font-size: 13px;
}

.dtm-ep-papers__list {
	max-height: calc(100vh - 260px);
	margin: 0;
	padding: 0;
	list-style: none;
	overflow-y: auto;
}

.dtm-ep-papers__list a {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 9px 10px;
	border-radius: 8px;
	color: var(--dtm-ep-ink);
	font-size: 15px;
}

.dtm-ep-papers__list a:hover,
.dtm-ep-papers__list a:focus-visible {
	background: var(--dtm-ep-bg);
	outline: none;
}

.dtm-ep-papers__no {
	flex: 0 0 auto;
	width: 26px;
	color: var(--dtm-ep-muted);
	font-size: 12px;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
}

.dtm-ep-papers__list a.is-current {
	background: var(--dtm-ep-accent-soft);
	color: var(--dtm-ep-accent);
	font-weight: 700;
}

.dtm-ep-papers__list a.is-current .dtm-ep-papers__no {
	color: var(--dtm-ep-accent);
}

.dtm-ep-papers__foot {
	margin-top: 14px;
	padding-top: 14px;
	border-top: 1px solid var(--dtm-ep-line);
}

/* ---------- Slider ---------- */

.dtm-ep-slider {
	position: relative;
	max-width: var(--dtm-ep-max);
	margin: 28px auto;
	padding: 0 20px;
	color: var(--dtm-ep-ink);
}

.dtm-ep-slider [hidden] {
	display: none !important;
}

.dtm-ep-slider__head {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 12px 16px;
	margin-bottom: 16px;
}

.dtm-ep-slider__title {
	margin: 0;
	font-size: 22px;
	font-weight: 800;
	line-height: 1.2;
}

.dtm-ep-slider__tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.dtm-ep-slider__tabs button {
	padding: 7px 16px;
	border: 1px solid var(--dtm-ep-line);
	border-radius: 999px;
	background: var(--dtm-ep-panel);
	color: var(--dtm-ep-ink);
	font: inherit;
	font-size: 14px;
	font-weight: 600;
	cursor: pointer;
}

.dtm-ep-slider__tabs button.is-active,
.dtm-ep-slider__tabs button:hover {
	border-color: var(--dtm-ep-accent);
	color: var(--dtm-ep-accent);
}

.dtm-ep-slider__nav {
	display: flex;
	gap: 8px;
	margin-left: auto;
}

.dtm-ep-slider__nav button {
	width: 40px;
	height: 40px;
	border: 1px solid var(--dtm-ep-line);
	border-radius: 50%;
	background: var(--dtm-ep-panel);
	color: var(--dtm-ep-ink);
	font-size: 24px;
	line-height: 1;
	cursor: pointer;
}

.dtm-ep-slider__nav button:hover:not(:disabled) {
	border-color: var(--dtm-ep-accent);
	color: var(--dtm-ep-accent);
}

.dtm-ep-slider__nav button:disabled {
	opacity: 0.35;
	cursor: default;
}

.dtm-ep-slider__track {
	display: flex;
	gap: 20px;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	padding: 4px 2px 18px;
	scrollbar-width: thin;
}

.dtm-ep-slider__track:focus-visible {
	outline: 3px solid rgba(29, 78, 216, 0.35);
	outline-offset: 2px;
	border-radius: var(--dtm-ep-radius);
}

.dtm-ep-slide {
	display: flex;
	flex: 0 0 auto;
	flex-direction: column;
	width: 210px;
	overflow: hidden;
	scroll-snap-align: start;
	background: var(--dtm-ep-panel);
	border-radius: var(--dtm-ep-radius);
	box-shadow: var(--dtm-ep-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dtm-ep-slide:hover {
	transform: translateY(-3px);
	box-shadow: var(--dtm-ep-shadow-hover);
}

.dtm-ep-slide__cover {
	display: block;
	aspect-ratio: 3 / 4;
	overflow: hidden;
	background: var(--dtm-ep-bg);
}

.dtm-ep-slide__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
}

.dtm-ep-slide__placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	color: var(--dtm-ep-muted);
	font-weight: 700;
}

.dtm-ep-slide__body {
	padding: 12px 14px 16px;
}

.dtm-ep-slide__meta {
	margin: 0;
	color: var(--dtm-ep-muted);
	font-size: 12px;
	font-weight: 600;
}

.dtm-ep-slide__title {
	margin: 4px 0 0;
	font-size: 15px;
	font-weight: 700;
	line-height: 1.3;
}

/* The slider sits outside .dtm-ep, so the theme's link colour would leak in without this. */
.dtm-ep-slider a {
	color: inherit;
	text-decoration: none;
}

/* ---------- Tablet and phone ---------- */

@media (max-width: 860px) {
	.dtm-ep-paper__layout {
		grid-template-columns: 1fr;
		gap: 24px;
	}

	.dtm-ep-papers {
		position: static;
	}

	.dtm-ep-papers__list {
		max-height: none;
		display: grid;
		grid-template-columns: 1fr 1fr;
		gap: 2px 8px;
	}
}

@media (max-width: 600px) {
	.dtm-ep {
		padding: 20px 16px 56px;
	}

	.dtm-ep-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 16px;
	}

	.dtm-ep-card__title {
		font-size: 15px;
	}

	.dtm-ep-chunks {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 14px;
	}

	.dtm-ep-tile__name {
		font-size: 15px;
	}

	.dtm-ep-papers__list {
		grid-template-columns: 1fr;
	}

	.dtm-ep-paper__hint {
		display: none;
	}

	.dtm-ep-slide {
		width: 170px;
	}

	.dtm-ep-slider__nav {
		display: none;
	}
}