/**
 * Free Books Library Theme - Main Styles
 *
 * @package Free_Books_Library_Theme
 */

/* ============================================
   CSS Variables (from Customizer)
   These will be overridden by dynamic CSS from customizer
   ============================================ */
:root {
	/* Theme Colors - Match Plugin */
	--fbl-primary: var(--fbl-color-primary, #6366f1);
	--fbl-primary-dark: var(--fbl-color-primary-dark, #4f46e5);
	--fbl-primary-light: var(--fbl-color-primary-light, #818cf8);
	--fbl-secondary: var(--fbl-color-secondary, #8b5cf6);
	--fbl-accent: var(--fbl-color-accent, #ec4899);
	--fbl-text: var(--fbl-color-text, #1f2937);
	--fbl-text-light: var(--fbl-color-text-light, #6b7280);
	--fbl-text-lighter: var(--fbl-color-text-lighter, #9ca3af);
	--fbl-bg: var(--fbl-color-bg, #ffffff);
	--fbl-bg-light: var(--fbl-color-bg-light, #f9fafb);
	--fbl-bg-lighter: var(--fbl-color-bg-lighter, #f3f4f6);
	--fbl-border: var(--fbl-color-border, #e5e7eb);
	--fbl-border-light: var(--fbl-color-border-light, #f3f4f6);
	
	/* Header & Footer */
	--fbl-header-bg: var(--fbl-header-bg, #ffffff);
	--fbl-header-text: var(--fbl-header-text, #1f2937);
	--fbl-footer-bg: var(--fbl-footer-bg, #1f2937);
	--fbl-footer-text: var(--fbl-footer-text, #ffffff);
	
	/* Typography */
	--fbl-body-font: var(--fbl-body-font, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif);
	--fbl-heading-font: var(--fbl-heading-font, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif);
	--fbl-base-size: var(--fbl-base-size, 16px);
	--fbl-container-width: var(--fbl-container-width, 1280px);
	
	/* Spacing - Match Plugin */
	--spacing-xs: var(--fbl-spacing-xs, 0.5rem);
	--spacing-sm: var(--fbl-spacing-sm, 0.75rem);
	--spacing-md: var(--fbl-spacing-md, 1rem);
	--spacing-lg: var(--fbl-spacing-lg, 1.5rem);
	--spacing-xl: var(--fbl-spacing-xl, 2rem);
	--spacing-2xl: var(--fbl-spacing-2xl, 3rem);
	
	/* Shadows - Match Plugin */
	--shadow-sm: var(--fbl-shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
	--shadow-md: var(--fbl-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06));
	--shadow-lg: var(--fbl-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05));
	--shadow-xl: var(--fbl-shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));
	
	/* Transitions - Match Plugin */
	--transition-base: var(--fbl-transition-base, 300ms cubic-bezier(0.4, 0, 0.2, 1));
}

/* ============================================
   Base Styles
   ============================================ */
* {
	box-sizing: border-box;
}

body {
	font-family: var(--fbl-body-font);
	font-size: var(--fbl-base-size);
	line-height: 1.6;
	color: var(--fbl-text);
	background-color: var(--fbl-bg);
	margin: 0;
	padding: 0;
}

h1, h2, h3, h4, h5, h6 {
	font-family: var(--fbl-heading-font);
	font-weight: 700;
	line-height: 1.2;
	color: var(--fbl-text);
	margin: 0 0 var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

a {
	color: var(--fbl-primary, var(--fbl-color-primary));
	text-decoration: none;
	transition: color var(--transition-base);
}

a:hover {
	color: var(--fbl-secondary, var(--fbl-color-secondary));
}

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

/* ============================================
   Layout
   ============================================ */
.site {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.container {
	max-width: var(--fbl-container-width);
	margin: 0 auto;
	padding: 0 var(--spacing-lg);
	width: 100%;
}

.content-area {
	flex: 1;
}

/* ============================================
   Header
   ============================================ */
.site-header {
	background-color: var(--fbl-header-bg);
	color: var(--fbl-header-text);
	padding: var(--spacing-lg) 0;
	box-shadow: var(--shadow-sm);
	position: relative;
	z-index: 100;
}

.site-header.sticky-header {
	position: sticky;
	top: 0;
	z-index: 1000;
}

.site-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--spacing-lg);
}

/* Header Layouts */
.site-header.default .site-header-inner {
	justify-content: space-between;
}

.site-header.centered .site-header-inner {
	flex-direction: column;
	text-align: center;
}

.site-header.minimal .site-header-inner {
	padding: var(--spacing-md) 0;
}

/* Site Branding */
.site-branding {
	display: flex;
	align-items: center;
}

.custom-logo-link {
	display: block;
	max-height: 60px;
	width: auto;
}

.custom-logo-link img {
	height: auto;
	max-height: 60px;
	width: auto;
}

.site-identity {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
}

.site-title {
	margin: 0;
	font-size: 1.5rem;
	font-weight: 700;
}

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

.site-description {
	margin: 0;
	font-size: 0.875rem;
	color: var(--fbl-header-text);
	opacity: 0.8;
}

/* Navigation */
.main-navigation {
	display: flex;
	align-items: center;
}

.menu-toggle {
	display: none;
	background: none;
	border: 2px solid var(--fbl-header-text);
	border-radius: 4px;
	padding: var(--spacing-xs) var(--spacing-sm);
	cursor: pointer;
	flex-direction: column;
	gap: 4px;
	width: 44px;
	height: 44px;
	justify-content: center;
	align-items: center;
}

.menu-toggle-icon {
	display: flex;
	flex-direction: column;
	gap: 4px;
	width: 20px;
}

.menu-toggle-icon span {
	display: block;
	width: 100%;
	height: 2px;
	background-color: var(--fbl-header-text);
	transition: all var(--transition-base);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(1) {
	transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(2) {
	opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(3) {
	transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
	display: flex;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: var(--spacing-lg);
	align-items: center;
}

.nav-menu li {
	margin: 0;
}

.nav-menu a {
	color: var(--fbl-header-text);
	text-decoration: none;
	font-weight: 500;
	padding: var(--spacing-xs) var(--spacing-sm);
	display: block;
	transition: color var(--transition-base);
}

.nav-menu a:hover {
	color: var(--fbl-primary, var(--fbl-color-primary));
}

/* ============================================
   Main Content
   ============================================ */
.site-main {
	flex: 1;
	padding: var(--spacing-2xl) 0;
}

.content-area {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--spacing-xl);
}

.has-sidebar .content-area {
	grid-template-columns: 1fr 300px;
}

/* Posts Listing */
.posts-listing {
	display: grid;
	gap: var(--spacing-xl);
}

/* Entry Content */
.entry-header {
	margin-bottom: var(--spacing-lg);
}

.entry-title {
	margin: 0 0 var(--spacing-md);
}

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

.entry-title a:hover {
	color: var(--fbl-primary, var(--fbl-color-primary));
}

.entry-meta {
	display: flex;
	gap: var(--spacing-md);
	font-size: 0.875rem;
	color: var(--fbl-text);
	opacity: 0.7;
	flex-wrap: wrap;
}

.entry-content {
	line-height: 1.8;
}

.entry-content p {
	margin-bottom: var(--spacing-md);
}

.entry-content a {
	color: var(--fbl-primary, var(--fbl-color-primary));
	text-decoration: underline;
}

.entry-content a:hover {
	color: var(--fbl-secondary, var(--fbl-color-secondary));
}

.post-thumbnail {
	margin-bottom: var(--spacing-lg);
	border-radius: 8px;
	overflow: hidden;
}

.post-thumbnail img {
	width: 100%;
	height: auto;
	display: block;
}

.read-more {
	display: inline-block;
	margin-top: var(--spacing-md);
	padding: var(--spacing-sm) var(--spacing-lg);
	background-color: var(--fbl-primary, var(--fbl-color-primary));
	color: #ffffff;
	border-radius: 6px;
	font-weight: 500;
	transition: all var(--transition-base);
}

.read-more:hover {
	background-color: var(--fbl-secondary, var(--fbl-color-secondary));
	color: #ffffff;
	transform: translateY(-2px);
	box-shadow: var(--shadow-md);
}

.entry-footer {
	margin-top: var(--spacing-lg);
	padding-top: var(--spacing-md);
	border-top: 1px solid rgba(0, 0, 0, 0.1);
	font-size: 0.875rem;
	color: var(--fbl-text);
	opacity: 0.7;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
	background-color: var(--fbl-footer-bg);
	color: var(--fbl-footer-text);
	padding: var(--spacing-2xl) 0 var(--spacing-lg);
	margin-top: var(--spacing-2xl);
}

.footer-widgets {
	display: grid;
	gap: var(--spacing-lg);
	margin-bottom: var(--spacing-xl);
	padding-bottom: var(--spacing-xl);
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-widgets-1 {
	grid-template-columns: 1fr;
}

.footer-widgets-2 {
	grid-template-columns: repeat(2, 1fr);
}

.footer-widgets-3 {
	grid-template-columns: repeat(3, 1fr);
}

.footer-widgets-4 {
	grid-template-columns: repeat(4, 1fr);
}

.footer-widget-column {
	color: var(--fbl-footer-text);
}

.footer-widget-column .widget-title {
	color: var(--fbl-footer-text);
	font-size: 1.125rem;
	margin-bottom: var(--spacing-md);
}

.footer-widget-column a {
	color: var(--fbl-footer-text);
	opacity: 0.8;
}

.footer-widget-column a:hover {
	opacity: 1;
	color: var(--fbl-footer-text);
}

.site-info {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: var(--spacing-md);
	font-size: 0.875rem;
}

.copyright {
	color: var(--fbl-footer-text);
	opacity: 0.8;
}

.footer-menu {
	display: flex;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: var(--spacing-lg);
	flex-wrap: wrap;
}

.footer-menu a {
	color: var(--fbl-footer-text);
	opacity: 0.8;
	text-decoration: none;
}

.footer-menu a:hover {
	opacity: 1;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
	padding: var(--spacing-lg);
	background-color: var(--fbl-bg);
	border-radius: 8px;
}

.widget {
	margin-bottom: var(--spacing-xl);
}

.widget:last-child {
	margin-bottom: 0;
}

.widget-title {
	font-size: 1.25rem;
	margin-bottom: var(--spacing-md);
	color: var(--fbl-text);
}

/* ============================================
   Buttons & Forms
   ============================================ */
.button,
button,
input[type="submit"],
input[type="button"] {
	display: inline-block;
	padding: var(--spacing-sm) var(--spacing-lg);
	background-color: var(--fbl-primary, var(--fbl-color-primary));
	color: #ffffff;
	border: none;
	border-radius: 6px;
	font-size: var(--fbl-base-size);
	font-weight: 500;
	cursor: pointer;
	transition: all var(--transition-base);
	text-decoration: none;
}

.button:hover,
button:hover,
input[type="submit"]:hover {
	background-color: var(--fbl-secondary, var(--fbl-color-secondary));
	color: #ffffff;
	transform: translateY(-2px);
	box-shadow: var(--shadow-md);
	box-shadow: var(--shadow-md);
}

/* ============================================
   Plugin Download Buttons - Override Theme Styles
   Ensure plugin download buttons maintain their gradient colors
   ============================================ */
.fbl-download-btn,
a.fbl-download-btn {
	background: linear-gradient(135deg, #9333ea 0%, #7e22ce 100%) !important;
	color: #ffffff !important;
	border: none !important;
	box-shadow: var(--fbl-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)) !important;
}

.fbl-download-btn:hover,
a.fbl-download-btn:hover {
	background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%) !important;
	color: #ffffff !important;
	transform: translateY(-2px) !important;
	box-shadow: var(--fbl-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05)) !important;
}

.fbl-download-btn:active,
a.fbl-download-btn:active {
	transform: translateY(0) !important;
}

.fbl-download-btn-large,
a.fbl-download-btn-large {
	background: linear-gradient(135deg, #9333ea 0%, #7e22ce 100%) !important;
	color: #ffffff !important;
	border: none !important;
	box-shadow: var(--fbl-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05)) !important;
}

.fbl-download-btn-large:hover,
a.fbl-download-btn-large:hover {
	background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%) !important;
	color: #ffffff !important;
	transform: translateY(-3px) !important;
	box-shadow: var(--fbl-shadow-2xl, 0 25px 50px -12px rgba(0, 0, 0, 0.25)) !important;
}

.fbl-download-btn-large:active,
a.fbl-download-btn-large:active {
	transform: translateY(-1px) !important;
}

input[type="text"],
input[type="email"],
input[type="search"],
input[type="url"],
input[type="password"],
textarea,
select {
	width: 100%;
	padding: var(--spacing-sm) var(--spacing-md);
	border: 2px solid rgba(0, 0, 0, 0.1);
	border-radius: 6px;
	font-size: var(--fbl-base-size);
	font-family: var(--fbl-body-font);
	transition: border-color var(--transition-base);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
	outline: none;
	border-color: var(--fbl-primary);
}

/* ============================================
   Search Form
   ============================================ */
.search-form {
	display: flex;
	gap: var(--spacing-sm);
	align-items: center;
}

.search-field {
	flex: 1;
}

.search-submit {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: var(--spacing-sm);
	background-color: var(--fbl-primary);
	color: #ffffff;
	border: none;
	border-radius: 6px;
	cursor: pointer;
	transition: all var(--transition-base);
	min-width: 44px;
	min-height: 44px;
}

.search-submit:hover {
	background-color: var(--fbl-secondary);
}

.search-submit svg {
	width: 20px;
	height: 20px;
}

/* ============================================
   Utilities
   ============================================ */
.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	position: absolute !important;
	height: 1px;
	width: 1px;
	overflow: hidden;
}

.skip-link {
	position: absolute;
	top: -9999px;
	left: 0;
	z-index: 999999;
	padding: var(--spacing-sm) var(--spacing-md);
	background-color: var(--fbl-primary);
	color: #ffffff;
	text-decoration: none;
}

.skip-link:focus {
	top: 0;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
	.has-sidebar .content-area {
		grid-template-columns: 1fr;
	}
	
	.sidebar {
		margin-top: var(--spacing-xl);
	}
	
	.footer-widgets-4 {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 768px) {
	.container {
		padding: 0 var(--spacing-md);
	}
	
	.site-header-inner {
		flex-wrap: wrap;
	}
	
	.menu-toggle {
		display: flex;
	}
	
	.main-navigation {
		width: 100%;
		order: 3;
	}
	
	.nav-menu {
		display: none;
		flex-direction: column;
		width: 100%;
		align-items: flex-start;
		padding: var(--spacing-md) 0;
		gap: 0;
	}
	
	.nav-menu.active {
		display: flex;
	}
	
	.nav-menu li {
		width: 100%;
	}
	
	.nav-menu a {
		padding: var(--spacing-sm) 0;
		width: 100%;
	}
	
	.site-header.centered .site-header-inner {
		flex-direction: row;
		justify-content: space-between;
	}
	
	.footer-widgets-2,
	.footer-widgets-3,
	.footer-widgets-4 {
		grid-template-columns: 1fr;
	}
	
	.site-info {
		flex-direction: column;
		text-align: center;
	}
	
	.footer-menu {
		justify-content: center;
	}
}

@media (max-width: 480px) {
	h1 { font-size: 2rem; }
	h2 { font-size: 1.75rem; }
	h3 { font-size: 1.5rem; }
	
	.site-main {
		padding: var(--spacing-lg) 0;
	}
}