/* ============================================
   DIYGuideHub - Complete Stylesheet
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
	/* Colors */
	--primary: #2563eb;
	--primary-dark: #1d4ed8;
	--primary-light: #3b82f6;
	--secondary: #0f172a;
	--accent: #f59e0b;
	--accent-dark: #d97706;

	/* Neutrals */
	--white: #ffffff;
	--gray-50: #f8fafc;
	--gray-100: #f1f5f9;
	--gray-200: #e2e8f0;
	--gray-300: #cbd5e1;
	--gray-400: #94a3b8;
	--gray-500: #64748b;
	--gray-600: #475569;
	--gray-700: #334155;
	--gray-800: #1e293b;
	--gray-900: #0f172a;

	/* Semantic */
	--success: #10b981;
	--warning: #f59e0b;
	--error: #ef4444;
	--info: #3b82f6;

	/* Typography */
	--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
		sans-serif;
	--font-heading: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
		sans-serif;

	/* Spacing */
	--spacing-xs: 0.25rem;
	--spacing-sm: 0.5rem;
	--spacing-md: 1rem;
	--spacing-lg: 1.5rem;
	--spacing-xl: 2rem;
	--spacing-2xl: 3rem;
	--spacing-3xl: 4rem;

	/* Border Radius */
	--radius-sm: 0.375rem;
	--radius-md: 0.5rem;
	--radius-lg: 0.75rem;
	--radius-xl: 1rem;
	--radius-full: 9999px;

	/* Shadows */
	--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
	--shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
	--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
		0 4px 6px -4px rgb(0 0 0 / 0.1);
	--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
		0 8px 10px -6px rgb(0 0 0 / 0.1);

	/* Transitions */
	--transition-fast: 150ms ease;
	--transition-normal: 250ms ease;
	--transition-slow: 350ms ease;

	/* Layout */
	--container-max: 1200px;
	--header-height: 72px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
	font-size: 16px;
}

body {
	font-family: var(--font-primary);
	font-size: 1rem;
	line-height: 1.6;
	color: var(--gray-700);
	background-color: var(--white);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

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

a {
	color: var(--primary);
	text-decoration: none;
	transition: color var(--transition-fast);
}

a:hover {
	color: var(--primary-dark);
}

ul,
ol {
	list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--font-heading);
	font-weight: 700;
	line-height: 1.2;
	color: var(--gray-900);
}

h1 {
	font-size: clamp(2rem, 5vw, 3.5rem);
}
h2 {
	font-size: clamp(1.5rem, 4vw, 2.5rem);
}
h3 {
	font-size: clamp(1.25rem, 3vw, 1.75rem);
}
h4 {
	font-size: 1.25rem;
}

p {
	margin-bottom: 1rem;
}

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

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--spacing-sm);
	padding: 0.75rem 1.5rem;
	font-size: 1rem;
	font-weight: 600;
	border-radius: var(--radius-md);
	border: 2px solid transparent;
	cursor: pointer;
	transition: all var(--transition-fast);
	text-decoration: none;
	white-space: nowrap;
}

.btn-primary {
	background-color: var(--primary);
	color: var(--white);
	border-color: var(--primary);
}

.btn-primary:hover {
	background-color: var(--primary-dark);
	border-color: var(--primary-dark);
	color: var(--white);
}

.btn-secondary {
	background-color: var(--gray-100);
	color: var(--gray-800);
	border-color: var(--gray-200);
}

.btn-secondary:hover {
	background-color: var(--gray-200);
	color: var(--gray-900);
}

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

.btn-outline:hover {
	background-color: var(--primary);
	color: var(--white);
}

.btn-sm {
	padding: 0.5rem 1rem;
	font-size: 0.875rem;
}

.btn-lg {
	padding: 1rem 2rem;
	font-size: 1.125rem;
}

.btn-block {
	width: 100%;
}

/* ---------- Header ---------- */
.header {
	position: sticky;
	top: 0;
	z-index: 1000;
	background-color: var(--white);
	border-bottom: 1px solid var(--gray-200);
	height: var(--header-height);
}

.nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-height);
}

.logo {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--gray-900);
}

.logo:hover {
	color: var(--gray-900);
}

.logo-icon {
	font-size: 1.75rem;
}

.logo-text .highlight {
	color: var(--primary);
}

.nav-links {
	display: flex;
	align-items: center;
	gap: var(--spacing-xl);
}

.nav-links a {
	color: var(--gray-600);
	font-weight: 500;
	transition: color var(--transition-fast);
}

.nav-links a:hover {
	color: var(--primary);
}

.mobile-menu-btn {
	display: none;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: 40px;
	height: 40px;
	background: none;
	border: none;
	cursor: pointer;
	padding: 0;
}

.hamburger {
	width: 24px;
	height: 2px;
	background-color: var(--gray-700);
	position: relative;
	transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
	content: "";
	position: absolute;
	width: 24px;
	height: 2px;
	background-color: var(--gray-700);
	transition: transform var(--transition-fast);
}

.hamburger::before {
	top: -8px;
}

.hamburger::after {
	top: 8px;
}

/* Mobile Menu Active State */
.mobile-menu-btn.active .hamburger {
	background-color: transparent;
}

.mobile-menu-btn.active .hamburger::before {
	transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu-btn.active .hamburger::after {
	transform: rotate(-45deg) translate(5px, -6px);
}

/* ---------- Hero Section ---------- */
.hero {
	padding: var(--spacing-3xl) 0;
	background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero .container {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--spacing-3xl);
	align-items: center;
}

.hero-badge {
	display: inline-block;
	padding: var(--spacing-xs) var(--spacing-md);
	background-color: var(--primary);
	color: var(--white);
	font-size: 0.875rem;
	font-weight: 600;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-lg);
}

.hero h1 {
	margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
	font-size: 1.25rem;
	color: var(--gray-600);
	margin-bottom: var(--spacing-xl);
	max-width: 540px;
}

.hero-cta {
	display: flex;
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-2xl);
	flex-wrap: wrap;
}

.hero-stats {
	display: flex;
	gap: var(--spacing-2xl);
}

.stat {
	text-align: center;
}

.stat-number {
	display: block;
	font-size: 2rem;
	font-weight: 700;
	color: var(--gray-900);
}

.stat-label {
	font-size: 0.875rem;
	color: var(--gray-500);
}

.hero-image-placeholder {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	background: var(--gray-100);
	border: 2px dashed var(--gray-300);
	border-radius: var(--radius-xl);
	height: 400px;
	color: var(--gray-400);
}

.hero-image-placeholder span {
	font-size: 4rem;
	margin-bottom: var(--spacing-md);
}

/* ---------- Section Styles ---------- */
section {
	padding: var(--spacing-3xl) 0;
}

.section-header {
	text-align: center;
	margin-bottom: var(--spacing-2xl);
}

.section-badge {
	display: inline-block;
	padding: var(--spacing-xs) var(--spacing-md);
	background-color: var(--gray-100);
	color: var(--primary);
	font-size: 0.875rem;
	font-weight: 600;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-md);
}

.section-header h2 {
	margin-bottom: var(--spacing-sm);
}

.section-header p {
	color: var(--gray-500);
	font-size: 1.125rem;
	max-width: 600px;
	margin: 0 auto;
}

.section-cta {
	text-align: center;
	margin-top: var(--spacing-2xl);
}

/* ---------- Categories Section ---------- */
.categories {
	background-color: var(--white);
}

.categories-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spacing-lg);
}

.category-card {
  height: fit-content;
	display: flex;
	flex-direction: column;
	padding: var(--spacing-xl);
	background-color: var(--white);
	border: 1px solid var(--gray-200);
	border-radius: var(--radius-lg);
	transition: all var(--transition-normal);
	text-decoration: none;
}

.category-card:hover {
	border-color: var(--primary);
	box-shadow: var(--shadow-lg);
	transform: translateY(-4px);
}

.category-icon {
	font-size: 2.5rem;
	margin-bottom: var(--spacing-md);
}

.category-card h3 {
	font-size: 1.25rem;
	margin-bottom: var(--spacing-sm);
	color: var(--gray-900);
}

.category-card p {
	color: var(--gray-500);
	font-size: 0.9375rem;
	margin-bottom: var(--spacing-md);
	flex-grow: 1;
}

.category-count {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--primary);
}

/* ---------- Expandable Category Cards ---------- */
.category-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    text-decoration: none;
    overflow: hidden;
}

.category-card-header {
    position: relative;
    padding: var(--spacing-xl);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.category-card-header:hover {
    background-color: var(--gray-50);
}

.category-card.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.category-card.active .category-card-header {
    background-color: var(--gray-50);
}

.category-toggle {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1.25rem;
    font-weight: 300;
}

.category-toggle:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.category-card.active .category-toggle {
    background-color: var(--accent);
    transform: rotate(45deg);
}

.toggle-icon {
    display: block;
    line-height: 1;
    transition: transform var(--transition-normal);
}

.category-articles {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background-color: var(--gray-50);
}

.category-card.active .category-articles {
    max-height: 1000px;
    padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.category-articles ul {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-md) 0;
}

.category-articles li {
    margin-bottom: var(--spacing-xs);
}

.category-articles li a {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.category-articles li a::before {
    content: '📄';
    flex-shrink: 0;
    font-size: 0.875rem;
    opacity: 0.7;
}

.category-articles li a:hover {
    background-color: var(--white);
    color: var(--primary);
    padding-left: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.view-all-link:hover {
    background-color: var(--primary);
    color: var(--white);
}

/* Prevent hover effect on expanded cards */
.category-card.active:hover {
    transform: none;
}

/* Adjust for non-expandable state */
.category-card:not(.active):hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .category-toggle {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
    
    .category-card.active .category-articles {
        max-height: 2000px;
    }
    
    .category-articles li a {
        font-size: 0.875rem;
    }
}


/* ---------- Featured Articles Section ---------- */
.featured {
	background-color: var(--gray-50);
}

.articles-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spacing-xl);
}

.article-card {
	background-color: var(--white);
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	transition: all var(--transition-normal);
}

.article-card:hover {
	box-shadow: var(--shadow-xl);
	transform: translateY(-4px);
}

.article-image {
	position: relative;
	background-color: var(--gray-100);
}

.article-category {
	position: absolute;
	top: var(--spacing-md);
	left: var(--spacing-md);
	padding: var(--spacing-xs) var(--spacing-sm);
	background-color: var(--white);
	color: var(--primary);
	font-size: 0.75rem;
	font-weight: 600;
	border-radius: var(--radius-sm);
	z-index: 1;
}

.image-placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
	color: var(--gray-400);
	font-size: 0.875rem;
	height: 200px;
}

.image-placeholder.small {
	height: 80px;
	border-radius: var(--radius-md);
}

.image-placeholder.medium {
	height: 250px;
	border-radius: var(--radius-md);
	margin: var(--spacing-lg) 0;
}

.image-placeholder.large {
	height: 300px;
	border-radius: var(--radius-md);
}

.image-placeholder.xlarge {
	height: 400px;
	border-radius: var(--radius-lg);
}

.article-content {
	padding: var(--spacing-lg);
}

.article-content h3 {
	font-size: 1.125rem;
	margin-bottom: var(--spacing-sm);
	line-height: 1.4;
}

.article-content h3 a {
	color: var(--gray-900);
}

.article-content h3 a:hover {
	color: var(--primary);
}

.article-content p {
	color: var(--gray-500);
	font-size: 0.9375rem;
	margin-bottom: var(--spacing-md);
}

.article-meta {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-md);
	font-size: 0.8125rem;
}

.read-time {
	color: var(--gray-500);
}

.pdf-badge {
	color: var(--accent-dark);
	font-weight: 600;
}

/* ---------- How It Works Section ---------- */
.how-it-works {
	background-color: var(--white);
}

.steps-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spacing-xl);
}

.step {
	text-align: center;
	padding: var(--spacing-xl);
}

.step-number {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 60px;
	height: 60px;
	background-color: var(--primary);
	color: var(--white);
	font-size: 1.5rem;
	font-weight: 700;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-lg);
}

.step h3 {
	margin-bottom: var(--spacing-md);
}

.step p {
	color: var(--gray-500);
}

/* ---------- Testimonials Section ---------- */
.testimonials {
	background-color: var(--gray-50);
}

.testimonials-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spacing-xl);
}

.testimonial-card {
	background-color: var(--white);
	padding: var(--spacing-xl);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-sm);
}

.stars {
	color: var(--accent);
	font-size: 1.25rem;
	margin-bottom: var(--spacing-md);
}

.testimonial-card > p {
	color: var(--gray-600);
	font-style: italic;
	margin-bottom: var(--spacing-lg);
}

.testimonial-author {
	display: flex;
	align-items: center;
	gap: var(--spacing-md);
}

.author-avatar {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	background-color: var(--primary);
	color: var(--white);
	font-weight: 600;
	border-radius: var(--radius-full);
}

.author-avatar.large {
	width: 80px;
	height: 80px;
	font-size: 1.5rem;
}

.author-info {
	display: flex;
	flex-direction: column;
}

.author-info strong {
	color: var(--gray-900);
}

.author-info span {
	font-size: 0.875rem;
	color: var(--gray-500);
}

/* ---------- Newsletter Section ---------- */
.newsletter {
	background: linear-gradient(
		135deg,
		var(--primary) 0%,
		var(--primary-dark) 100%
	);
	color: var(--white);
}

.newsletter-content {
	text-align: center;
	max-width: 600px;
	margin: 0 auto;
}

.newsletter h2 {
	color: var(--white);
	margin-bottom: var(--spacing-md);
}

.newsletter p {
	opacity: 0.9;
	margin-bottom: var(--spacing-xl);
}

.newsletter-form {
	display: flex;
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-md);
}

.newsletter-form input {
	flex: 1;
	padding: 1rem var(--spacing-lg);
	border: none;
	border-radius: var(--radius-md);
	font-size: 1rem;
}

.newsletter-form input:focus {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.newsletter-form .btn {
	background-color: var(--accent);
	border-color: var(--accent);
	color: var(--gray-900);
}

.newsletter-form .btn:hover {
	background-color: var(--accent-dark);
	border-color: var(--accent-dark);
}

.newsletter-note {
	font-size: 0.875rem;
	opacity: 0.8;
}

/* ---------- About Section ---------- */
.about {
	background-color: var(--white);
}

.about-content {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--spacing-3xl);
	align-items: center;
}

.about-text h2 {
	margin-bottom: var(--spacing-lg);
}

.about-text p {
	color: var(--gray-600);
	margin-bottom: var(--spacing-lg);
}

.about-text .btn {
	margin-top: var(--spacing-md);
}

/* ---------- Footer ---------- */
.footer {
	background-color: var(--gray-900);
	color: var(--gray-400);
	padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1fr;
	gap: var(--spacing-2xl);
	margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
	margin-bottom: var(--spacing-md);
}

.footer-brand .logo-text {
	color: var(--white);
}

.footer-brand p {
	margin-bottom: var(--spacing-lg);
}

.social-links {
	display: flex;
	gap: var(--spacing-md);
}

.social-links a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	background-color: var(--gray-800);
	color: var(--gray-400);
	border-radius: var(--radius-md);
	font-size: 0.75rem;
	font-weight: 600;
	transition: all var(--transition-fast);
}

.social-links a:hover {
	background-color: var(--primary);
	color: var(--white);
}

.footer-links h4 {
	color: var(--white);
	font-size: 1rem;
	margin-bottom: var(--spacing-lg);
}

.footer-links ul {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
}

.footer-links a {
	color: var(--gray-400);
	font-size: 0.9375rem;
	transition: color var(--transition-fast);
}

.footer-links a:hover {
	color: var(--white);
}

.footer-bottom {
	text-align: center;
	padding-top: var(--spacing-xl);
	border-top: 1px solid var(--gray-800);
	font-size: 0.875rem;
}

/* ============================================ ARTICLE PAGE STYLES ============================================ */

/* ---------- Breadcrumb ---------- */
.breadcrumb {
	background-color: var(--gray-50);
	padding: var(--spacing-md) 0;
	border-bottom: 1px solid var(--gray-200);
}

.breadcrumb ol {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--spacing-sm);
	font-size: 0.875rem;
}

.breadcrumb li {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

.breadcrumb li:not(:last-child)::after {
	content: "/";
	color: var(--gray-400);
}

.breadcrumb a {
	color: var(--gray-500);
}

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

.breadcrumb li:last-child span {
	color: var(--gray-700);
}

/* ---------- Article Hero ---------- */
.article-hero {
	background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
	padding: var(--spacing-2xl) 0;
}

.article-hero-content {
	max-width: 800px;
}

.category-tag {
	display: inline-block;
	padding: var(--spacing-xs) var(--spacing-md);
	background-color: var(--primary);
	color: var(--white);
	font-size: 0.8125rem;
	font-weight: 600;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-lg);
}

.article-hero h1 {
	margin-bottom: var(--spacing-lg);
	font-size: clamp(1.75rem, 4vw, 2.75rem);
}

.article-excerpt {
	font-size: 1.25rem;
	color: var(--gray-600);
	margin-bottom: var(--spacing-xl);
	line-height: 1.7;
}

.article-meta-bar {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: var(--spacing-lg);
	padding-top: var(--spacing-lg);
	border-top: 1px solid var(--gray-200);
}

.article-meta-bar .author-info {
	display: flex;
	align-items: center;
	gap: var(--spacing-md);
}

.author-name {
	display: block;
	font-weight: 600;
	color: var(--gray-900);
}

.publish-date {
	font-size: 0.875rem;
	color: var(--gray-500);
}

.article-stats {
	display: flex;
	gap: var(--spacing-lg);
	font-size: 0.875rem;
	color: var(--gray-500);
}

/* ---------- Article Layout ---------- */
.article-main {
	padding: var(--spacing-2xl) 0;
}

.article-layout {
	display: grid;
	grid-template-columns: 1fr 380px;
	gap: var(--spacing-2xl);
	align-items: start;
}

/* ---------- Article Content ---------- */
.article-content {
	min-width: 0;
}

.article-featured-image {
	margin-bottom: var(--spacing-xl);
}

.image-caption {
	display: block;
	text-align: center;
	font-size: 0.875rem;
	color: var(--gray-500);
	margin-top: var(--spacing-sm);
}

/* Table of Contents */
.toc-box {
	background-color: var(--gray-50);
	border: 1px solid var(--gray-200);
	border-radius: var(--radius-lg);
	padding: var(--spacing-lg);
	margin-bottom: var(--spacing-xl);
}

.toc-box h3 {
	font-size: 1rem;
	margin-bottom: var(--spacing-md);
}

.toc-box ol {
	list-style: decimal;
	padding-left: var(--spacing-lg);
}

.toc-box li {
	margin-bottom: var(--spacing-sm);
}

.toc-box a {
	color: var(--gray-600);
	font-size: 0.9375rem;
}

.toc-box a:hover {
	color: var(--primary);
}

/* Article Body */
.article-body {
	font-size: 1.0625rem;
	line-height: 1.8;
}

.article-body p.lead {
	font-size: 1.25rem;
	color: var(--gray-700);
	line-height: 1.7;
}

.article-body h2 {
	margin-top: var(--spacing-2xl);
	margin-bottom: var(--spacing-lg);
	padding-top: var(--spacing-lg);
	border-top: 1px solid var(--gray-200);
}

.article-body h3 {
	margin-top: var(--spacing-xl);
	margin-bottom: var(--spacing-md);
}

.article-body p {
	margin-bottom: var(--spacing-lg);
}

.article-body blockquote {
	margin: var(--spacing-xl) 0;
	padding: var(--spacing-lg) var(--spacing-xl);
	background-color: var(--gray-50);
	border-left: 4px solid var(--primary);
	border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-body blockquote p {
	font-size: 1.125rem;
	font-style: italic;
	color: var(--gray-700);
	margin-bottom: var(--spacing-sm);
}

.article-body blockquote cite {
	font-size: 0.9375rem;
	color: var(--gray-500);
	font-style: normal;
}

.article-body ul,
.article-body ol {
	margin-bottom: var(--spacing-lg);
	padding-left: var(--spacing-xl);
}

.article-body ul {
	list-style: disc;
}

.article-body ol {
	list-style: decimal;
}

.article-body li {
	margin-bottom: var(--spacing-sm);
}

/* Info Boxes */
.info-box {
	margin: var(--spacing-xl) 0;
	padding: var(--spacing-lg);
	border-radius: var(--radius-md);
}

.info-box h4 {
	margin-bottom: var(--spacing-sm);
}

.info-box p {
	margin-bottom: 0;
}

.info-box.warning {
	background-color: #fef3c7;
	border: 1px solid #f59e0b;
}

.info-box.warning h4 {
	color: #b45309;
}

.info-box.tip {
	background-color: #dcfce7;
	border: 1px solid #22c55e;
}

.info-box.tip h4 {
	color: #15803d;
}

.info-box.info {
	background-color: #dbeafe;
	border: 1px solid #3b82f6;
}

.info-box.info h4 {
	color: #1d4ed8;
}

/* Feature List */
.feature-list {
	list-style: none !important;
	padding-left: 0 !important;
}

.feature-list li {
	position: relative;
	padding-left: var(--spacing-xl);
	margin-bottom: var(--spacing-md);
}

.feature-list li::before {
	content: "✓";
	position: absolute;
	left: 0;
	color: var(--success);
	font-weight: 700;
}

/* In-Article PDF CTA */
.pdf-cta-inline {
	display: flex;
	align-items: center;
	gap: var(--spacing-xl);
	margin: var(--spacing-2xl) 0;
	padding: var(--spacing-xl);
	background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
	border: 2px solid var(--primary);
	border-radius: var(--radius-lg);
}

.pdf-preview {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	width: 100px;
	height: 120px;
	background-color: var(--primary);
	color: var(--white);
	border-radius: var(--radius-md);
	flex-shrink: 0;
}

.pdf-icon {
	font-size: 2.5rem;
}

.pdf-preview span {
	font-size: 0.75rem;
	font-weight: 600;
}

.pdf-cta-content h3 {
	margin-bottom: var(--spacing-sm);
}

.pdf-cta-content p {
	margin-bottom: var(--spacing-md);
	color: var(--gray-600);
}

/* Author Bio */
.author-bio {
	display: flex;
	gap: var(--spacing-lg);
	margin-top: var(--spacing-2xl);
	padding: var(--spacing-xl);
	background-color: var(--gray-50);
	border-radius: var(--radius-lg);
}

.author-bio-content h4 {
	margin-bottom: var(--spacing-sm);
}

.author-bio-content p {
	color: var(--gray-600);
	margin-bottom: var(--spacing-md);
}

/* Related Articles */
.related-articles {
	margin-top: var(--spacing-2xl);
	padding-top: var(--spacing-2xl);
	border-top: 1px solid var(--gray-200);
}

.related-articles h3 {
	margin-bottom: var(--spacing-lg);
}

.related-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spacing-lg);
}

.related-card {
	display: block;
	padding: var(--spacing-md);
	background-color: var(--gray-50);
	border-radius: var(--radius-md);
	transition: all var(--transition-fast);
}

.related-card:hover {
	background-color: var(--gray-100);
	transform: translateY(-2px);
}

.related-card h4 {
	font-size: 0.9375rem;
	margin: var(--spacing-sm) 0;
	color: var(--gray-800);
}

.related-card span {
	font-size: 0.8125rem;
	color: var(--gray-500);
}

/* ---------- Article Sidebar ---------- */
.article-sidebar {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xl);
}

/* PDF Product Box */
.pdf-product-box {
	background-color: var(--white);
	border: 2px solid var(--gray-200);
	border-radius: var(--radius-lg);
	padding: var(--spacing-xl);
	text-align: center;
}

.pdf-product-box.sticky {
	position: sticky;
	top: calc(var(--header-height) + var(--spacing-lg));
}

.pdf-badge-top {
	display: inline-block;
	padding: var(--spacing-xs) var(--spacing-md);
	background-color: var(--error);
	color: var(--white);
	font-size: 0.75rem;
	font-weight: 700;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-lg);
	text-transform: uppercase;
}

.pdf-cover {
	margin-bottom: var(--spacing-lg);
}

.pdf-cover-placeholder {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	height: 200px;
	background: linear-gradient(
		135deg,
		var(--primary) 0%,
		var(--primary-dark) 100%
	);
	color: var(--white);
	border-radius: var(--radius-md);
	padding: var(--spacing-lg);
}

.pdf-cover-placeholder span {
	font-size: 3rem;
	margin-bottom: var(--spacing-sm);
}

.pdf-cover-placeholder p {
	font-weight: 600;
	margin-bottom: 0;
}

.pdf-product-box h3 {
	font-size: 1.25rem;
	margin-bottom: var(--spacing-xs);
}

.pdf-subtitle {
	color: var(--gray-500);
	margin-bottom: var(--spacing-lg);
}

.pdf-features {
	text-align: left;
	margin-bottom: var(--spacing-lg);
}

.pdf-features li {
	padding: var(--spacing-sm) 0;
	border-bottom: 1px solid var(--gray-100);
	font-size: 0.9375rem;
	color: var(--gray-600);
}

.pdf-features li:last-child {
	border-bottom: none;
}

.pdf-pricing {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-lg);
}

.price-original {
	font-size: 1.25rem;
	color: var(--gray-400);
	text-decoration: line-through;
}

.price-current {
	font-size: 2rem;
	font-weight: 700;
	color: var(--gray-900);
}

.price-savings {
	padding: var(--spacing-xs) var(--spacing-sm);
	background-color: var(--success);
	color: var(--white);
	font-size: 0.75rem;
	font-weight: 600;
	border-radius: var(--radius-sm);
}

.pdf-product-box .btn-block {
	margin-bottom: var(--spacing-md);
}

.pdf-guarantee {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--spacing-sm);
	font-size: 0.8125rem;
	color: var(--gray-500);
	margin-bottom: var(--spacing-lg);
}

.pdf-testimonial {
	padding-top: var(--spacing-lg);
	border-top: 1px solid var(--gray-200);
}

.pdf-testimonial .stars {
	font-size: 1rem;
	margin-bottom: var(--spacing-sm);
}

.pdf-testimonial p {
	font-size: 0.875rem;
	font-style: italic;
	color: var(--gray-600);
	margin-bottom: var(--spacing-sm);
}

.pdf-testimonial span {
	font-size: 0.8125rem;
	color: var(--gray-500);
}

/* Sidebar Newsletter */
.sidebar-newsletter {
	background-color: var(--gray-50);
	border-radius: var(--radius-lg);
	padding: var(--spacing-lg);
}

.sidebar-newsletter h4 {
	margin-bottom: var(--spacing-sm);
}

.sidebar-newsletter p {
	font-size: 0.9375rem;
	color: var(--gray-600);
	margin-bottom: var(--spacing-md);
}

.sidebar-newsletter input {
	width: 100%;
	padding: 0.75rem;
	border: 1px solid var(--gray-300);
	border-radius: var(--radius-md);
	margin-bottom: var(--spacing-sm);
	font-size: 0.9375rem;
}

.sidebar-newsletter input:focus {
	outline: 2px solid var(--primary);
	outline-offset: 2px;
	border-color: var(--primary);
}

/* Sidebar Categories */
.sidebar-categories {
	background-color: var(--white);
	border: 1px solid var(--gray-200);
	border-radius: var(--radius-lg);
	padding: var(--spacing-lg);
}

.sidebar-categories h4 {
	margin-bottom: var(--spacing-md);
}

.sidebar-categories ul {
	display: flex;
	flex-direction: column;
}

.sidebar-categories li {
	border-bottom: 1px solid var(--gray-100);
}

.sidebar-categories li:last-child {
	border-bottom: none;
}

.sidebar-categories a {
	display: block;
	padding: var(--spacing-sm) 0;
	color: var(--gray-600);
	font-size: 0.9375rem;
	transition: color var(--transition-fast);
}

.sidebar-categories a:hover {
	color: var(--primary);
}

/* ---------- Bottom CTA Section ---------- */
.bottom-cta {
	background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
	color: var(--white);
	padding: var(--spacing-3xl) 0;
}

.bottom-cta-content {
	text-align: center;
	max-width: 700px;
	margin: 0 auto;
}

.bottom-cta h2 {
	color: var(--white);
	margin-bottom: var(--spacing-md);
}

.bottom-cta p {
	opacity: 0.9;
	font-size: 1.125rem;
	margin-bottom: var(--spacing-xl);
}

.bottom-cta-buttons {
	display: flex;
	justify-content: center;
	gap: var(--spacing-md);
	flex-wrap: wrap;
}

.bottom-cta .btn-outline {
	border-color: var(--white);
	color: var(--white);
}

.bottom-cta .btn-outline:hover {
	background-color: var(--white);
	color: var(--gray-900);
}

/* ============================================ RESPONSIVE STYLES ============================================ */

/* Tablet - Large */
@media (max-width: 1024px) {
	.article-layout {
		grid-template-columns: 1fr 320px;
		gap: var(--spacing-xl);
	}

	.hero .container {
		grid-template-columns: 1fr;
		text-align: center;
	}

	.hero-subtitle {
		margin: 0 auto var(--spacing-xl);
	}

	.hero-cta {
		justify-content: center;
	}

	.hero-stats {
		justify-content: center;
	}

	.hero-image {
		display: none;
	}

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

	.about-image {
		order: -1;
	}

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

/* Tablet - Small */
@media (max-width: 900px) {
	.article-layout {
		grid-template-columns: 1fr;
	}

	.article-sidebar {
		display: grid;
		grid-template-columns: repeat(2, 1fr);
		gap: var(--spacing-lg);
	}

	.pdf-product-box {
		grid-column: 1 / -1;
	}

	.pdf-product-box.sticky {
		position: static;
	}

	.categories-grid,
	.articles-grid,
	.steps-grid,
	.testimonials-grid {
		grid-template-columns: repeat(2, 1fr);
	}

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

/* Mobile - Large */
@media (max-width: 768px) {
	:root {
		--spacing-3xl: 3rem;
	}

	.mobile-menu-btn {
		display: flex;
	}

	.nav-links {
		position: fixed;
		top: var(--header-height);
		left: 0;
		right: 0;
		background-color: var(--white);
		flex-direction: column;
		padding: var(--spacing-xl);
		gap: var(--spacing-lg);
		border-bottom: 1px solid var(--gray-200);
		box-shadow: var(--shadow-lg);
		transform: translateY(-100%);
		opacity: 0;
		visibility: hidden;
		transition: all var(--transition-normal);
	}

	.nav-links.active {
		transform: translateY(0);
		opacity: 1;
		visibility: visible;
	}

	.nav-links li {
		width: 100%;
	}

	.nav-links a {
		display: block;
		padding: var(--spacing-sm) 0;
	}

	.nav-links .btn {
		width: 100%;
		text-align: center;
	}

	.categories-grid,
	.articles-grid,
	.steps-grid,
	.testimonials-grid {
		grid-template-columns: 1fr;
	}

	.newsletter-form {
		flex-direction: column;
	}

	.footer-grid {
		grid-template-columns: 1fr;
		text-align: center;
	}

	.social-links {
		justify-content: center;
	}

	.pdf-cta-inline {
		flex-direction: column;
		text-align: center;
	}

	.related-grid {
		grid-template-columns: 1fr;
	}

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

	.article-meta-bar {
		flex-direction: column;
		align-items: flex-start;
	}

	.author-bio {
		flex-direction: column;
		text-align: center;
	}
}

/* Mobile - Small */
@media (max-width: 480px) {
	:root {
		--spacing-2xl: 2rem;
		--spacing-3xl: 2.5rem;
	}

	.container {
		padding: 0 var(--spacing-md);
	}

	.hero-cta {
		flex-direction: column;
	}

	.hero-cta .btn {
		width: 100%;
	}

	.hero-stats {
		flex-direction: column;
		gap: var(--spacing-lg);
	}

	.btn-lg {
		padding: 0.875rem 1.5rem;
		font-size: 1rem;
	}

	.pdf-pricing {
		flex-direction: column;
		gap: var(--spacing-sm);
	}

	.bottom-cta-buttons {
		flex-direction: column;
	}

	.bottom-cta-buttons .btn {
		width: 100%;
	}
}

/* ---------- Print Styles ---------- */
@media print {
	.header,
	.footer,
	.article-sidebar,
	.pdf-cta-inline,
	.bottom-cta,
	.newsletter,
	.related-articles {
		display: none !important;
	}

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

	.article-body {
		font-size: 12pt;
	}

	a {
		text-decoration: underline;
	}
}

/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}

	html {
		scroll-behavior: auto;
	}
}

/* Focus Styles */
:focus-visible {
	outline: 2px solid var(--primary);
	outline-offset: 2px;
}

/* Skip Link */
.skip-link {
	position: absolute;
	top: -40px;
	left: 0;
	background: var(--primary);
	color: var(--white);
	padding: var(--spacing-sm) var(--spacing-md);
	z-index: 10000;
	transition: top var(--transition-fast);
}

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


/* gdpr */
#gdpr-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(20,20,20,0.95);
  color: #fff;
  padding: 16px;
  z-index: 9999;
  font-family: Arial, sans-serif;
}
.gdpr-inner { max-width: 1100px; margin: 0 auto; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.gdpr-inner p { margin:0; font-size:14px; }
.gdpr-actions button { margin-left:8px; padding:8px 12px; border:0; border-radius:4px; cursor:pointer; }
#gdpr-accept { background:#2ecc71; color:#fff; }
#gdpr-reject { background:#e74c3c; color:#fff; }