/**
 * Fallback Components Foundation
 *
 * Provides styling for core components: buttons, cards, navigation menu,
 * site branding, entry meta, and pagination.
 *
 * @package ATheme\Theme
 * @since   1.0.0
 */

/* ==========================================================================
   1. BUTTONS
   ========================================================================== */

.button,
.btn,
button,
input[type="button"],
input[type="reset"],
input[type="submit"] {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: var(--btn-height);
	padding-inline: var(--btn-padding-inline);
	padding-block: var(--space-2);
	font-size: var(--btn-font-size);
	font-weight: var(--btn-font-weight);
	line-height: 1;
	color: var(--color-text-inverse);
	background-color: var(--color-primary);
	border: 1px solid transparent;
	border-radius: var(--btn-radius);
	cursor: pointer;
	text-decoration: none;
	text-align: center;
	transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.button:hover,
.btn:hover,
button:hover,
input[type="submit"]:hover {
	background-color: var(--color-primary-hover);
	color: var(--color-text-inverse);
	text-decoration: none;
}

.button--secondary,
.btn--secondary {
	background-color: var(--color-secondary);
	color: #ffffff;
}

.button--secondary:hover,
.btn--secondary:hover {
	background-color: var(--color-neutral-700);
	color: #ffffff;
	text-decoration: none;
}

.button--outline,
.btn--outline {
	background-color: transparent;
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.button--outline:hover,
.btn--outline:hover {
	background-color: var(--color-primary);
	color: var(--color-text-inverse);
}

/* ==========================================================================
   2. SITE BRANDING (Fallback Header)
   ========================================================================== */

.site-branding {
	display: flex;
	align-items: center;
	gap: var(--space-3);
}

.site-title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	margin-block-end: 0;
}

.site-title a {
	color: var(--color-text-heading);
	text-decoration: none;
}

.site-description {
	font-size: var(--font-size-xs);
	color: var(--color-text-muted);
	margin-block-end: 0;
}

.custom-logo {
	max-height: 48px;
	width: auto;
}

/* ==========================================================================
   3. NAVIGATION (Accessible Fallback Menu)
   ========================================================================== */

.main-navigation {
	display: block;
}

.menu-toggle {
	display: flex;
	background: transparent;
	border: 1px solid var(--color-border);
	color: var(--color-text-heading);
	padding: var(--space-2) var(--space-3);
	border-radius: var(--radius-sm);
	font-size: var(--font-size-sm);
}

.menu-toggle:hover {
	background-color: var(--color-surface-subtle);
	color: var(--color-text-heading);
}

.nav-menu {
	display: none;
	list-style: none;
	padding-inline-start: 0;
	margin-block: 0;
}

.nav-menu.toggled {
	display: flex;
	flex-direction: column;
	position: absolute;
	inset-inline-start: 0;
	inset-inline-end: 0;
	inset-block-start: 100%;
	background-color: var(--color-surface);
	border-block-end: 1px solid var(--color-border);
	box-shadow: var(--shadow-md);
	padding: var(--space-4);
	z-index: var(--z-dropdown);
}

.nav-menu li {
	position: relative;
}

.nav-menu a {
	display: block;
	padding: var(--space-2) var(--space-3);
	color: var(--color-text);
	text-decoration: none;
	font-weight: var(--font-weight-medium);
	font-size: var(--font-size-sm);
	border-radius: var(--radius-sm);
}

.nav-menu a:hover,
.nav-menu li.current-menu-item > a {
	color: var(--color-primary);
	background-color: var(--color-surface-subtle);
}

/* Navigation breakpoint. Deliberately wider than the 768px used elsewhere:
   a horizontal menu has to share the header with the branding and the call to
   action, and at 768px a realistic menu does not fit beside them. */
@media (min-width: 1024px) {
	.menu-toggle {
		display: none;
	}

	.nav-menu {
		display: flex;
		align-items: center;
		flex-wrap: wrap;
		gap: var(--space-2);
	}

	.nav-menu.toggled {
		position: static;
		flex-direction: row;
		box-shadow: none;
		border: 0;
		padding: 0;
	}

	/* Submenu dropdowns. Scoped through li on purpose: an unscoped
	   .nav-menu ul also matches the top-level list whenever the markup
	   wraps it, which tears the whole menu out of the header flow. */
	.nav-menu li ul {
		display: none;
		position: absolute;
		inset-inline-start: 0;
		inset-block-start: 100%;
		background-color: var(--color-surface);
		border: 1px solid var(--color-border);
		border-radius: var(--radius-md);
		box-shadow: var(--shadow-lg);
		list-style: none;
		padding: var(--space-2);
		min-width: 12rem;
		z-index: var(--z-dropdown);
	}

	.nav-menu li:hover > ul,
	.nav-menu li.focus > ul {
		display: block;
	}
}

/* ==========================================================================
   4. POST CARDS & ENTRY CONTENT
   ========================================================================== */

.post-card {
	background-color: var(--card-bg);
	border: 1px solid var(--card-border);
	border-radius: var(--card-radius);
	padding: var(--card-padding);
	box-shadow: var(--card-shadow);
	display: flex;
	flex-direction: column;
	transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.post-card:hover {
	box-shadow: var(--shadow-md);
}

.post-card .post-thumbnail {
	margin-block-end: var(--space-4);
	border-radius: var(--radius-md);
	overflow: hidden;
}

.post-card .post-thumbnail img {
	width: 100%;
	height: 12rem;
	object-fit: cover;
	transition: transform var(--transition-base);
}

.post-card:hover .post-thumbnail img {
	transform: scale(1.03);
}

.post-card .entry-title {
	font-size: var(--font-size-lg);
	margin-block-end: var(--space-2);
}

.post-card .entry-title a {
	color: var(--color-text-heading);
	text-decoration: none;
}

.post-card .entry-title a:hover {
	color: var(--color-primary);
}

.entry-meta {
	font-size: var(--font-size-xs);
	color: var(--color-text-muted);
	margin-block-end: var(--space-3);
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

.entry-meta a {
	color: var(--color-text-muted);
	text-decoration: none;
}

.entry-meta a:hover {
	color: var(--color-primary);
}

.entry-summary {
	font-size: var(--font-size-sm);
	color: var(--color-text);
	flex-grow: 1;
	margin-block-end: var(--space-4);
}

.entry-footer {
	font-size: var(--font-size-xs);
	color: var(--color-text-muted);
	border-block-start: 1px solid var(--color-border-subtle);
	padding-block-start: var(--space-3);
	margin-block-start: auto;
}

/* ==========================================================================
   5. PAGINATION
   ========================================================================== */

.navigation.pagination {
	margin-block: var(--space-10);
}

.navigation.pagination .nav-links {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: var(--space-2);
	flex-wrap: wrap;
}

.page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 2.5rem;
	height: 2.5rem;
	padding-inline: var(--space-3);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	color: var(--color-text);
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	text-decoration: none;
	transition: background-color var(--transition-fast), color var(--transition-fast);
}

.page-numbers:hover,
.page-numbers.current {
	background-color: var(--color-primary);
	color: var(--color-text-inverse);
	border-color: var(--color-primary);
}