/* ===== Floating buttons (scoped to each markdown view) ===== */

.article-nav-host {
	position: relative;
}

.article-nav-floating-inview {
	position: absolute;
	pointer-events: none;
	z-index: 10;
	display: flex;
	justify-content: space-between;
}

/* Circular style — vertically centered */
.article-nav-floating-inview-circle {
	top: 50%;
	left: 0;
	right: 0;
	transform: translateY(-50%);
	padding: 0 12px;
}

/* Tall rectangular style — flush with edges, full height */
.article-nav-floating-inview-tall {
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
}

/* Shared button base */
.article-nav-floating-btn {
	pointer-events: auto;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0;
	color: var(--text-muted);
	background: var(--background-secondary);
	border: 1px solid var(--background-modifier-border);
	transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease, opacity 0.5s ease;
}

.article-nav-floating-btn.is-hidden {
	opacity: 0;
	pointer-events: none;
}

/* Prevent the click strip from receiving events when the button is hidden.
   pointer-events: none on a parent does NOT block children in CSS, so we
   must target the strip child directly. */
.article-nav-floating-btn.is-hidden .article-nav-tall-click-strip {
	pointer-events: none;
}

/* Circular variant */
.article-nav-floating-btn-circle {
	width: 44px;
	height: 44px;
	border-radius: 50%;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.article-nav-floating-btn-circle:hover {
	background: var(--interactive-accent);
	color: var(--text-on-accent);
	transform: scale(1.08);
}

/* Tall variant */
.article-nav-floating-btn.article-nav-floating-btn-tall {
	position: relative;
	width: 70px;
	padding: 0;
	height: 100%;
	border-radius: 0;
	background: transparent;
	outline: 1px solid transparent;
	border: 1px solid transparent;
	box-shadow: none;
	pointer-events: none;
}

.article-nav-floating-btn-tall.is-hovered {
	color: var(--text-normal);
}

/* 30px click strip — the only interactive zone */
.article-nav-tall-click-strip {
	position: absolute;
	top: 0;
	bottom: 0;
	width: 30px;
	pointer-events: auto;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1;
}

.article-nav-floating-prev .article-nav-tall-click-strip {
	left: 0;
}

.article-nav-floating-next .article-nav-tall-click-strip {
	right: 0;
}

/* Independent background div for smooth gradient opacity transition */
.article-nav-floating-btn-tall-bg {
	position: absolute;
	inset: 0;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.2s ease;
}

.article-nav-floating-prev > .article-nav-floating-btn-tall-bg {
	background: linear-gradient(90deg, var(--background-modifier-hover), transparent);
}

.article-nav-floating-next > .article-nav-floating-btn-tall-bg {
	background: linear-gradient(270deg, var(--background-modifier-hover), transparent);
}

.article-nav-floating-btn-tall.is-hovered .article-nav-floating-btn-tall-bg {
	opacity: 1;
}

/* Idle fade — apply to children, hover still wins via :hover */
.article-nav-floating-inview.is-idle .article-nav-floating-btn {
	opacity: 0.12;
}

.article-nav-floating-inview.is-idle .article-nav-floating-btn-tall {
	opacity: 0.18;
}

.article-nav-floating-inview .article-nav-floating-btn:hover,
.article-nav-floating-inview .article-nav-floating-btn-tall.is-hovered {
	opacity: 1;
}

/* ===== Inline (VitePress style) navigation ===== */

.article-nav-inline {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	margin: 16px 0 8px 0;
	padding-top: 16px;
	border-top: 1px solid var(--background-modifier-border);
}

.article-nav-inline-slot {
	min-width: 0;
}

/* Explicit column placement — slots always occupy their correct column
   even when the other slot is absent from the DOM. */
.article-nav-inline-slot.article-nav-inline-prev {
	grid-column: 1;
}

.article-nav-inline-slot.article-nav-inline-next {
	grid-column: 2;
}

.article-nav-inline a.article-nav-inline-link,
.article-nav-inline .article-nav-inline-link{
	display: block;
	width: 100%;
	padding: 12px 16px;
	border: 1px solid var(--background-modifier-border);
	border-radius: 8px;
	text-decoration: none;
	color: var(--text-normal);
	background: var(--background-primary);
	transition: border-color 0.15s ease, transform 0.15s ease, color 0.15s ease, background 0.15s ease;
	box-sizing: border-box;
}

/* Right-align the "Next" card content */
.article-nav-inline-next .article-nav-inline-link {
	text-align: right;
}

.article-nav-inline-link:hover {
	border-color: var(--interactive-accent);
	color: var(--interactive-accent);
	transform: translateY(-1px);
}

.article-nav-inline-label {
	font-size: 0.78em;
	color: var(--text-muted);
	margin-bottom: 4px;
	letter-spacing: 0.02em;
}

.article-nav-inline-link:hover .article-nav-inline-label {
	color: var(--interactive-accent);
}

.article-nav-inline-title {
	font-size: 1em;
	font-weight: 600;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

/* Keep inline + seealso aligned with editor file margins */
.markdown-source-view .article-nav-inline,
.markdown-source-view .article-nav-seealso {
	margin-left: var(--file-margins, 0);
	margin-right: var(--file-margins, 0);
}

/* ===== See Also section ===== */

.article-nav-seealso {
	margin: 16px 0;
	padding: 14px 18px;
	border-radius: 8px;
	background: var(--background-secondary);
	border-left: 4px solid var(--interactive-accent);
}

.article-nav-seealso-top {
	margin-top: 4px;
	margin-bottom: 20px;
}

.article-nav-seealso-bottom {
	margin-top: 20px;
}

.article-nav-seealso-title {
	font-weight: 600;
	font-size: 0.95em;
	color: var(--text-normal);
	margin-bottom: 6px;
	letter-spacing: 0.02em;
}

.article-nav-seealso-list {
	margin: 0;
	padding-left: 18px;
	list-style: disc;
}

.article-nav-seealso-list li {
	margin: 4px 0;
}

.article-nav-seealso-link {
	color: var(--link-color);
	text-decoration: none;
	cursor: pointer;
}

.article-nav-seealso-link:hover {
	color: var(--link-color-hover);
	text-decoration: underline;
}

/* ===== Confirm modal ===== */

.article-nav-confirm-message {
	white-space: pre-wrap;
}

.article-nav-confirm-buttons {
	display: flex;
	gap: 8px;
	justify-content: flex-end;
	margin-top: 16px;
}

/* Mobile tweaks */
@media (max-width: 600px) {
	.article-nav-floating-inview-circle {
		padding: 0 6px;
	}

	.article-nav-floating-btn-circle {
		width: 38px;
		height: 38px;
	}

	.article-nav-floating-btn-tall {
		width: 28px;
	}

	.article-nav-inline {
		grid-template-columns: 1fr;
	}

	/* Reset explicit column placement for single-column layout */
	.article-nav-inline-slot.article-nav-inline-prev,
	.article-nav-inline-slot.article-nav-inline-next {
		grid-column: 1;
	}

	.article-nav-inline-next .article-nav-inline-link {
		text-align: left;
	}
}