/* ==========================================================================
   markgo Main Stylesheet
   Modern, responsive design for the Go blog engine
   ========================================================================== */

/* CSS Variables (Custom Properties) */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-accent: #f59e0b;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Text Colors */
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    --color-text-inverse: #ffffff;

    /* Background Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    --color-bg-dark: #111827;

    /* Border Colors */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-border-dark: #d1d5db;

    /* Typography */
    --font-family-sans:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --font-family-mono:
        "Fira Code", "SF Mono", Monaco, Inconsolata, "Roboto Mono",
        "Source Code Pro", monospace;

    /* Font Sizes */
    --font-size-xs: 0.75rem; /* 12px */
    --font-size-sm: 0.875rem; /* 14px */
    --font-size-base: 1rem; /* 16px */
    --font-size-lg: 1.125rem; /* 18px */
    --font-size-xl: 1.25rem; /* 20px */
    --font-size-2xl: 1.5rem; /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem; /* 36px */
    --font-size-5xl: 3rem; /* 48px */

    /* Spacing */
    --spacing-1: 0.25rem; /* 4px */
    --spacing-2: 0.5rem; /* 8px */
    --spacing-3: 0.75rem; /* 12px */
    --spacing-4: 1rem; /* 16px */
    --spacing-5: 1.25rem; /* 20px */
    --spacing-6: 1.5rem; /* 24px */
    --spacing-8: 2rem; /* 32px */
    --spacing-10: 2.5rem; /* 40px */
    --spacing-12: 3rem; /* 48px */
    --spacing-16: 4rem; /* 64px */
    --spacing-20: 5rem; /* 80px */

    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius-base: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base:
        0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md:
        0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg:
        0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl:
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;

    /* Container */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-4);
}

/* Dark mode variables */
@media (prefers-color-scheme: dark) {
    :root {
        --color-text-primary: #f9fafb;
        --color-text-secondary: #d1d5db;
        --color-text-muted: #a1a1aa;
        --color-bg-primary: #0f172a;
        --color-bg-secondary: #1e293b;
        --color-bg-tertiary: #334155;
        --color-border: #334155;
        --color-border-light: #475569;
        --color-border-dark: #64748b;
    }
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 100%;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 var(--spacing-4) 0;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-4xl);
}
h2 {
    font-size: var(--font-size-3xl);
}
h3 {
    font-size: var(--font-size-2xl);
}
h4 {
    font-size: var(--font-size-xl);
}
h5 {
    font-size: var(--font-size-lg);
}
h6 {
    font-size: var(--font-size-base);
}

p {
    margin: 0 0 var(--spacing-4) 0;
    color: var(--color-text-primary);
}

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

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

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

strong,
b {
    font-weight: 600;
}

em,
i {
    font-style: italic;
}

code {
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-base);
}

pre {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    padding: var(--spacing-4);
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: var(--spacing-6) 0;
}

pre code {
    background: none;
    padding: 0;
    font-size: inherit;
}

/* Copy code button styles */
.copy-code-btn {
    position: absolute;
    top: var(--spacing-2);
    right: var(--spacing-2);
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    font-size: var(--font-size-xs);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    transition: all 0.2s ease;
    z-index: 1;
}

.copy-code-btn:hover {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    border-color: var(--color-border-dark);
}

.copy-code-btn:active {
    transform: scale(0.95);
}

.copy-code-btn svg {
    width: 14px;
    height: 14px;
}

.copy-code-btn.success {
    background: var(--color-success, #10b981);
    color: var(--color-text-inverse, #ffffff);
    border-color: var(--color-success, #10b981);
}

.copy-code-btn.success:hover {
    background: var(--color-success, #10b981);
    color: var(--color-text-inverse, #ffffff);
    border-color: var(--color-success, #10b981);
}

/* Dark mode copy button styles */
@media (prefers-color-scheme: dark) {
    .copy-code-btn {
        background: var(--color-bg-tertiary, #334155);
        color: var(--color-text-primary, #f9fafb);
        border-color: var(--color-border, #334155);
    }

    .copy-code-btn:hover {
        background: var(--color-primary, #2563eb);
        color: var(--color-text-inverse, #ffffff);
        border-color: var(--color-primary, #2563eb);
    }

    .copy-code-btn.success {
        background: var(--color-success, #10b981);
        color: var(--color-text-inverse, #ffffff);
        border-color: var(--color-success, #10b981);
    }

    .copy-code-btn.success:hover {
        background: var(--color-success, #10b981);
        color: var(--color-text-inverse, #ffffff);
        border-color: var(--color-success, #10b981);
    }

    /* Improve blockquote contrast in dark mode */
    blockquote {
        background-color: var(--color-bg-tertiary);
        border-left-color: var(--color-accent);
    }

    /* Improve code contrast in dark mode */
    code {
        background-color: var(--color-bg-tertiary);
        color: var(--color-text-primary);
    }
}

/* Make pre elements relative positioned for absolute button positioning */
pre {
    position: relative;
}

blockquote {
    margin: var(--spacing-6) 0;
    padding: var(--spacing-4) var(--spacing-6);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-bg-secondary);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: var(--color-text-primary);
}

blockquote p {
    margin-bottom: 0;
    font-style: italic;
    color: var(--color-text-primary);
}

ul,
ol {
    margin: 0 0 var(--spacing-4) 0;
    padding-left: var(--spacing-6);
}

li {
    margin-bottom: var(--spacing-2);
    color: var(--color-text-primary);
}

hr {
    margin: var(--spacing-8) 0;
    border: none;
    height: 1px;
    background-color: var(--color-border);
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

/* Simple scroll shadow effect - no transparency */
.navbar.scrolled {
    box-shadow:
        0 1px 3px 0 rgba(0, 0, 0, 0.1),
        0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

/* Dark mode scrolled header */
@media (prefers-color-scheme: dark) {
    .navbar.scrolled {
        box-shadow:
            0 1px 3px 0 rgba(0, 0, 0, 0.3),
            0 1px 2px 0 rgba(0, 0, 0, 0.2);
    }
}

/* Navbar base styles */
.navbar {
    padding: var(--spacing-6) 0;
}

/* Smooth scroll effect for entire page */
html {
    scroll-behavior: smooth;
}

/* Enhanced focus states for better accessibility */
.nav-link:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Back to top button styles */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: 50%;
    font-size: var(--font-size-lg);
    font-weight: 700;
    cursor: pointer;
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-fast);
}

.back-to-top:hover {
    background-color: var(--color-primary-dark);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    flex-shrink: 0;
}

.brand-link {
    text-decoration: none;
    color: inherit;
}

.brand-link:hover {
    text-decoration: none;
}

.brand-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    color: var(--color-text-primary);
}

.brand-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0;
    margin-top: var(--spacing-1);
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-6);
}

.nav-item {
    margin: 0;
}

.nav-link {
    color: var(--color-text-primary);
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-base);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-secondary);
    text-decoration: none;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    gap: var(--spacing-1);
}

.toggle-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main-content {
    min-height: calc(100vh - 120px);
    padding: 0;
}

/* Page Header - Consistent across all pages */
.page-header {
    background: linear-gradient(
        135deg,
        var(--color-bg-secondary) 0%,
        var(--color-bg-primary) 100%
    );
    padding: var(--spacing-16) 0 var(--spacing-12) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    color: var(--color-text-primary);
}

.page-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 500;
}

/* Content sections after header */
.page-content {
    padding: var(--spacing-16) 0;
}

/* ==========================================================================
   Homepage Styles
   ========================================================================== */

.hero-section {
    background: linear-gradient(
        135deg,
        var(--color-bg-secondary) 0%,
        var(--color-bg-primary) 100%
    );
    padding: var(--spacing-16) 0 var(--spacing-12) 0;
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-6);
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-8);
    flex-wrap: wrap;
}

.stat-item {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-8);
    text-align: center;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
}

.section-link {
    color: var(--color-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.featured-section {
    padding: var(--spacing-12) 0 var(--spacing-16) 0;
    background-color: var(--color-bg-secondary);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.recent-section {
    padding: var(--spacing-16) 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

/* ==========================================================================
   Article Cards
   ========================================================================== */

.article-card,
.featured-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    transition: all var(--transition-base);
    height: fit-content;
}

.article-card:hover,
.featured-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.featured-card {
    background: linear-gradient(
        135deg,
        var(--color-bg-primary) 0%,
        var(--color-bg-secondary) 100%
    );
    border: 2px solid var(--color-primary);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
}

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

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

.card-description {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    font-weight: 500;
}

.card-excerpt {
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-4);
    flex-wrap: wrap;
}

.card-date,
.card-reading-time,
.card-word-count {
    display: flex;
    align-items: center;
}

.card-tags,
.card-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

/* ==========================================================================
   Tags & Categories
   ========================================================================== */

.tag,
.category {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid var(--color-border-light);
}

.tag:hover,
.category:hover {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    text-decoration: none;
    transform: translateY(-1px);
}

.tags-section {
    padding: var(--spacing-16) 0;
    background-color: var(--color-bg-secondary);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    justify-content: center;
    margin-bottom: var(--spacing-8);
}

.tag-cloud-item {
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.tag-cloud-item:hover {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.tag-count {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
    padding: var(--spacing-16) 0;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-primary-dark) 100%
    );
    color: var(--color-text-inverse);
    text-align: center;
}

.cta-title {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-4);
    font-weight: 700;
}

.cta-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--color-text-inverse);
    opacity: 0.95;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
    line-height: 1;
    gap: var(--spacing-2);
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
    text-decoration: none;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
}

.btn-secondary:hover {
    background-color: var(--color-text-inverse);
    color: var(--color-primary);
    text-decoration: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--spacing-16) 0 var(--spacing-8) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-4);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-4);
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-inverse);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
    text-decoration: none;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-inverse);
    text-decoration: none;
}

.footer-posts {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-posts li {
    margin-bottom: var(--spacing-3);
}

.footer-post-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    display: block;
    margin-bottom: var(--spacing-1);
}

.footer-post-link:hover {
    color: var(--color-text-inverse);
    text-decoration: none;
}

.footer-post-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-xs);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: var(--font-size-sm);
}

.footer-info a {
    color: var(--color-accent);
}

.build-info {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-xs);
    font-family: var(--font-family-mono);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --container-padding: var(--spacing-4);
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        border-top: 1px solid var(--color-border);
        padding: var(--spacing-4);
        box-shadow: var(--shadow-lg);
    }

    .navbar-menu.active {
        display: block;
    }

    .navbar-nav {
        flex-direction: column;
        gap: var(--spacing-2);
    }

    .nav-link {
        padding: var(--spacing-3);
        border-radius: var(--radius-lg);
    }

    .navbar-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .page-title {
        font-size: var(--font-size-2xl);
    }

    .page-header {
        padding: var(--spacing-12) 0 var(--spacing-8) 0;
    }

    .hero-description {
        font-size: var(--font-size-lg);
    }

    .hero-stats {
        gap: var(--spacing-4);
    }

    .section-header {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }

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

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: var(--spacing-8) 0 var(--spacing-6) 0;
    }

    .page-header {
        padding: var(--spacing-8) 0 var(--spacing-6) 0;
    }

    .page-content {
        padding: var(--spacing-12) 0;
    }

    .recent-section,
    .featured-section,
    .tags-section,
    .cta-section {
        padding: var(--spacing-12) 0;
    }

    .card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-2);
    }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center {
    text-align: center;
}
.text-left {
    text-align: left;
}
.text-right {
    text-align: right;
}

.hidden {
    display: none;
}
.block {
    display: block;
}
.inline-block {
    display: inline-block;
}
.flex {
    display: flex;
}
.grid {
    display: grid;
}

.mt-0 {
    margin-top: 0;
}
.mb-0 {
    margin-bottom: 0;
}
.ml-0 {
    margin-left: 0;
}
.mr-0 {
    margin-right: 0;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .navbar,
    .footer,
    .cta-section {
        display: none;
    }

    .main-content {
        padding: 0;
    }

    a {
        color: inherit;
        text-decoration: underline;
    }

    .article-card {
        break-inside: avoid;
        border: 1px solid #ccc;
        margin-bottom: 1rem;
    }
}