/* NFC.cool Blog Theme
   Brand Colors: #212529 (dark), #FFC700 (yellow accent), #1170CF→#00AAFF (blue gradient), #F2F2F2 (light gray)
   Fonts: Titillium Web (primary), Caveat (accent)
*/

/* ============================================================
   Custom Fonts
   ============================================================ */
@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-Regular.ttf') format('truetype');
   font-weight: 400;
   font-style: normal;
   font-display: swap;
}

@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-Italic.ttf') format('truetype');
   font-weight: 400;
   font-style: italic;
   font-display: swap;
}

@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-SemiBold.ttf') format('truetype');
   font-weight: 600;
   font-style: normal;
   font-display: swap;
}

@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-SemiBoldItalic.ttf') format('truetype');
   font-weight: 600;
   font-style: italic;
   font-display: swap;
}

@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-Bold.ttf') format('truetype');
   font-weight: 700;
   font-style: normal;
   font-display: swap;
}

@font-face {
   font-family: 'Titillium Web';
   src: url('../fonts/TitilliumWeb-BoldItalic.ttf') format('truetype');
   font-weight: 700;
   font-style: italic;
   font-display: swap;
}

@font-face {
   font-family: 'Caveat';
   src: url('../fonts/Caveat-VariableFont_wght.ttf') format('truetype');
   font-weight: 400 700;
   font-style: normal;
   font-display: swap;
}

/* ============================================================
   CSS Custom Properties — NFC.cool Brand
   ============================================================ */
:root {
   /* Brand colors */
   --nfc-dark: #212529;
   --nfc-yellow: #FFC700;
   --nfc-yellow-hover: #E6B400;
   --nfc-blue-start: #1170CF;
   --nfc-blue-end: #00AAFF;
   --nfc-light-gray: #F2F2F2;

   /* Override SiteKit design tokens */
   --font-sans: 'Titillium Web', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
   --font-heading: 'Titillium Web', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
   --font-accent: 'Caveat', cursive;
   --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', Consolas, monospace;

   --color-accent: var(--nfc-blue-start);
   --color-accent-hover: var(--nfc-blue-end);
   --color-accent-light: rgba(17, 112, 207, 0.08);

   --color-bg: #FFFFFF;
   --color-bg-alt: var(--nfc-light-gray);
   --color-bg-card: #FFFFFF;
   --color-text: var(--nfc-dark);
   --color-text-secondary: #555B63;
   --color-text-muted: #8B919A;
   --color-border: #DEE2E6;
   --color-border-light: #E9ECEF;
   --color-shadow: rgba(33, 37, 41, 0.08);
   --color-code-bg: var(--nfc-light-gray);
   --color-code-text: var(--nfc-dark);

   --radius: 8px;
   --radius-lg: 12px;
   --transition: 0.2s ease;
   --max-width: 1200px;
   --content-width: 720px;
   --header-height: 64px;
}

[data-theme="dark"] {
   --color-accent: var(--nfc-blue-end);
   --color-accent-hover: var(--nfc-blue-start);
   --color-accent-light: rgba(0, 170, 255, 0.12);

   --color-bg: #0D1117;
   --color-bg-alt: #161B22;
   --color-bg-card: #161B22;
   --color-text: #E6EDF3;
   --color-text-secondary: #8B949E;
   --color-text-muted: #6E7681;
   --color-border: #30363D;
   --color-border-light: #21262D;
   --color-shadow: rgba(0, 0, 0, 0.3);
   --color-code-bg: #161B22;
   --color-code-text: #E6EDF3;
}

/* ============================================================
   Typography
   ============================================================ */
html {
   overflow-x: hidden;
}

body {
   font-family: var(--font-sans);
   color: var(--color-text);
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
   overflow-x: hidden;
   max-width: 100vw;
}

h1, h2, h3, h4, h5, h6 {
   font-family: var(--font-heading);
   font-weight: 700;
   line-height: 1.3;
   color: var(--color-text);
}

h1 { font-size: 2.25rem; margin-bottom: 0.5em; letter-spacing: -0.025em; }
h2 { font-size: 1.75rem; margin-top: 2em; margin-bottom: 0.5em; letter-spacing: -0.02em; }
h3 { font-size: 1.375rem; margin-top: 1.5em; margin-bottom: 0.5em; }
h4 { font-size: 1.125rem; margin-top: 1.25em; margin-bottom: 0.5em; }

p { margin-bottom: 1.25em; }
strong { font-weight: 600; }

/* Accent font class for callouts / pull quotes */
.nfc-accent-text {
   font-family: var(--font-accent);
   font-size: 1.25em;
}

/* ============================================================
   NFC.cool Yellow Accent Elements
   ============================================================ */
.nfc-cta,
.sk-article-body .nfc-cta {
   display: inline-block;
   background: var(--nfc-yellow);
   color: var(--nfc-dark);
   padding: 0.75rem 2rem;
   border-radius: var(--radius);
   font-weight: 700;
   font-size: 1rem;
   text-decoration: none;
   transition: all var(--transition);
   border: 2px solid var(--nfc-yellow);
}

.nfc-cta:hover {
   background: var(--nfc-yellow-hover);
   border-color: var(--nfc-yellow-hover);
   transform: translateY(-1px);
   box-shadow: 0 4px 12px rgba(255, 199, 0, 0.3);
}

/* Blue gradient (utility class, available for future use) */

/* ============================================================
   Logo in Header — dark/light mode swap
   ============================================================ */
.sk-site-logo {
   display: flex;
   align-items: center;
   flex-shrink: 0;
   margin-right: 0.5rem;
}

.sk-site-logo img.sk-logo-dark {
   display: block;
   height: 24px;
   width: auto;
   border-radius: 0;
}

.sk-site-logo img.sk-logo-light {
   display: none;
   height: 24px;
   width: auto;
   border-radius: 0;
}

[data-theme="dark"] .sk-site-logo img.sk-logo-dark {
   display: none;
}

[data-theme="dark"] .sk-site-logo img.sk-logo-light {
   display: block;
}

.sk-site-logo-text {
   display: none;
}

/* ".cool" treatment in logo text */
.nfc-logo-cool {
   font-family: var(--font-accent);
   color: var(--nfc-yellow);
   font-weight: 600;
}

/* ============================================================
   Skip Link (Accessibility)
   ============================================================ */
.sk-skip-link {
   position: absolute;
   top: -100%;
   left: 0;
   background: var(--color-accent);
   color: #fff;
   padding: 0.5rem 1rem;
   z-index: 100;
   border-radius: 0 0 var(--radius) 0;
   font-weight: 500;
}

.sk-skip-link:focus {
   top: 0;
   color: #fff;
}

/* ============================================================
   Site Header & Navigation
   ============================================================ */
.sk-site-header {
   position: sticky;
   top: 0;
   z-index: 50;
   background: rgba(255, 255, 255, 0.92);
   backdrop-filter: blur(12px);
   -webkit-backdrop-filter: blur(12px);
   border-bottom: 1px solid var(--color-border-light);
   height: var(--header-height);
}

[data-theme="dark"] .sk-site-header {
   background: rgba(13, 17, 23, 0.92);
}

.sk-site-nav {
   display: flex;
   align-items: center;
   max-width: var(--max-width);
   margin: 0 auto;
   padding: 0 1.5rem;
   height: 100%;
}

.sk-site-logo {
   font-family: var(--font-heading);
   font-size: 1.35rem;
   font-weight: 700;
   color: var(--color-text);
   letter-spacing: -0.02em;
   flex-shrink: 0;
   display: flex;
   align-items: center;
   gap: 0.5rem;
}

.sk-site-logo:hover {
   color: var(--color-accent);
}

.sk-nav-list {
   display: flex;
   list-style: none;
   gap: 0.125rem;
   flex: 1;
   justify-content: center;
   overflow-x: auto;
   -webkit-overflow-scrolling: touch;
   scrollbar-width: none;
}

.sk-nav-list::-webkit-scrollbar {
   display: none;
}

.sk-nav-item a {
   display: inline-flex;
   align-items: center;
   gap: 0.375rem;
   padding: 0.5rem 0.75rem;
   color: var(--color-text);
   font-weight: 600;
   font-size: 0.875rem;
   border-radius: var(--radius);
   transition: all var(--transition);
   white-space: nowrap;
}

.sk-nav-item a:hover,
.sk-nav-item a.active {
   color: var(--color-accent);
   background: var(--color-accent-light);
}

.sk-nav-icon {
   font-size: 0.875rem;
   display: inline-block;
   width: 1em;
   text-align: center;
}

.sk-search-btn {
   position: relative;
   display: flex;
   align-items: center;
   background: none;
   border: 1px solid var(--color-border);
   border-radius: var(--radius);
   padding: 0.375rem 0.625rem;
   color: var(--color-text-secondary);
   cursor: pointer;
   font-size: 1rem;
   transition: all var(--transition);
   flex-shrink: 0;
   margin-left: 0.5rem;
}

.sk-search-btn:hover {
   color: var(--color-accent);
   border-color: var(--color-accent);
}

.sk-theme-toggle {
   background: none;
   border: 1px solid var(--color-border);
   border-radius: var(--radius);
   padding: 0.375rem 0.625rem;
   color: var(--color-text-secondary);
   cursor: pointer;
   font-size: 0.875rem;
   transition: all var(--transition);
   flex-shrink: 0;
   margin-left: 0.5rem;
}

.sk-theme-toggle:hover {
   color: var(--color-accent);
   border-color: var(--color-accent);
}

/* ============================================================
   Main Content Area
   ============================================================ */
.sk-main {
   flex: 1;
   max-width: var(--max-width);
   margin: 0 auto;
   padding: 2rem 1.5rem;
   width: 100%;
}

/* ============================================================
   Homepage
   ============================================================ */
.sk-page-home .sk-main {
   max-width: var(--max-width);
}

.sk-home-hero {
   text-align: center;
   padding: 3rem 1rem 2rem;
   margin-bottom: 2rem;
   border-bottom: 1px solid var(--color-border-light);
}

.sk-home-title {
   font-size: 2.5rem;
   letter-spacing: -0.03em;
   margin-bottom: 0.5rem;
   color: var(--color-text);
}

.sk-home-subtitle {
   font-size: 1.125rem;
   max-width: 600px;
   margin: 0 auto;
   line-height: 1.6;
   color: var(--color-text-secondary);
}

.sk-home-content {
   margin-bottom: 2rem;
}

.sk-home-content h2 {
   font-size: 1.5rem;
   margin-top: 2.5rem;
   margin-bottom: 1rem;
   padding-bottom: 0.5rem;
   border-bottom: 2px solid var(--color-accent-light);
}

.sk-home-section-title {
   font-size: 1.5rem;
   margin-bottom: 1rem;
}

.sk-home-all-posts {
   text-align: right;
   margin-top: 0.5rem;
   margin-bottom: 0;
}

.sk-home-all-posts a {
   font-size: 0.9375rem;
   font-weight: 600;
   color: var(--color-accent);
}

/* ============================================================
   Post List / Article Cards
   ============================================================ */
.sk-post-list {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
   gap: 1rem;
   list-style: none;
}

.sk-post-card {
   position: relative;
   background: var(--color-bg-card);
   border: 1px solid var(--color-border-light);
   border-radius: var(--radius-lg);
   padding: 1.5rem;
   transition: all var(--transition);
   overflow: hidden;
   display: flex;
   flex-direction: column;
   cursor: pointer;
}

.sk-post-card:hover {
   border-color: var(--color-accent);
   box-shadow: 0 4px 16px var(--color-shadow);
   transform: translateY(-2px);
}

.sk-post-link {
   position: absolute;
   inset: 0;
   z-index: 1;
}

.sk-post-card h3 {
   margin-top: 0;
   margin-bottom: 0.25rem;
}

.sk-post-card h2 {
   margin-top: 0;
   margin-bottom: 0.25rem;
}

.sk-post-card h3 a {
   color: var(--color-text);
   text-decoration: none;
}

.sk-post-card h3 a:hover {
   color: var(--color-accent);
}

.sk-post-card .sk-post-meta {
   font-size: 0.85rem;
   color: var(--color-text-muted);
   margin-bottom: 0.5rem;
}

.sk-post-card .sk-post-summary {
   color: var(--color-text-secondary);
   font-size: 0.95rem;
   margin-bottom: 0;
}

.sk-post-footer {
   position: relative;
   z-index: 2;
}

/* ============================================================
   Article Page
   ============================================================ */
.sk-article {
   max-width: var(--content-width);
   margin: 0 auto;
}

.sk-article-header {
   margin-bottom: 2.5rem;
   padding-bottom: 1.5rem;
   border-bottom: 1px solid var(--color-border-light);
}

.sk-article-title {
   font-size: 2.5rem;
   letter-spacing: -0.03em;
   line-height: 1.2;
   margin-bottom: 0.75rem;
}

.sk-article-summary {
   font-size: 1.25rem;
   color: var(--color-text-secondary);
   line-height: 1.6;
   margin-bottom: 1rem;
}

.sk-article-meta {
   font-size: 0.875rem;
   color: var(--color-text-muted);
}

.sk-article-byline {
   display: flex;
   align-items: center;
   gap: 0.75rem;
}

.sk-article-author-image {
   width: 44px;
   height: 44px;
   border-radius: 50%;
   object-fit: cover;
   flex-shrink: 0;
}

.sk-article-byline-text {
   display: flex;
   flex-direction: column;
   gap: 0;
   padding: 0.125rem 0;
}

.sk-article-author {
   font-weight: 600;
   font-size: 0.9375rem;
   color: var(--color-accent);
   text-decoration: none;
}

a.sk-article-author:hover {
   opacity: 0.8;
}

.sk-article-byline-details {
   display: flex;
   align-items: center;
   gap: 0;
   font-size: 0.875rem;
   color: var(--color-text-muted);
}

.sk-article-read-time::before {
   content: " \00b7  ";
}

.sk-article-body {
   max-width: var(--content-width);
   margin: 0 auto;
}

.sk-article-body p {
   font-size: 1.0625rem;
   line-height: 1.75;
}

.sk-article-body ul,
.sk-article-body ol {
   margin-bottom: 1.25em;
   padding-left: 1.5rem;
}

.sk-article-body li {
   margin-bottom: 0.375em;
   line-height: 1.65;
}

/* Article navigation (prev/next) */
.sk-article-nav {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 1rem;
   margin-top: 3rem;
   padding-top: 2rem;
   border-top: 1px solid var(--color-border-light);
}

.sk-article-nav a {
   display: block;
   padding: 1rem 1.25rem;
   background: var(--color-bg-card);
   border: 1px solid var(--color-border-light);
   border-radius: var(--radius);
   transition: border-color var(--transition);
}

.sk-article-nav a:hover {
   border-color: var(--color-accent);
}

.sk-article-nav-next {
   text-align: right;
}

/* ============================================================
   Section / Listing Pages
   ============================================================ */
.sk-section-header {
   margin-bottom: 2rem;
   padding-bottom: 1rem;
   border-bottom: 1px solid var(--color-border-light);
}

.sk-section-title {
   font-size: 2rem;
   margin-bottom: 0.25rem;
}

.sk-section-description {
   color: var(--color-text-secondary);
   font-size: 1.0625rem;
}

.sk-listing-title-row {
   display: flex;
   align-items: baseline;
   justify-content: space-between;
}

.sk-listing-rss {
   font-size: 0.875rem;
   color: var(--color-text-muted);
   text-decoration: none;
   white-space: nowrap;
}

.sk-listing-rss:hover {
   color: var(--color-accent);
}

/* ============================================================
   Static Pages
   ============================================================ */
.sk-static-page {
   max-width: var(--content-width);
   margin: 0 auto;
}

.sk-static-page h1 {
   margin-bottom: 1rem;
}

/* ============================================================
   Tags
   ============================================================ */
.sk-tag {
   display: inline-flex;
   align-items: center;
}

.sk-tag-link {
   display: inline-block;
   padding: 0.25rem 0.75rem;
   background: var(--color-accent-light);
   border: 1px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
   border-radius: 100px;
   font-size: 0.75rem;
   font-weight: 600;
   color: var(--color-accent);
   text-decoration: none;
   transition: all var(--transition);
   letter-spacing: 0.01em;
}

.sk-post-footer .sk-tag-list {
   display: flex;
   flex-wrap: wrap;
   gap: 0.375rem;
   margin-top: 0.75rem;
}

.sk-tag-link:hover {
   background: var(--color-accent);
   border-color: var(--color-accent);
   color: #FFFFFF;
   transform: translateY(-1px);
   box-shadow: 0 2px 4px var(--color-shadow);
}

.sk-tag-link:hover::after {
   content: none;
}

/* ============================================================
   Code Blocks
   ============================================================ */
code {
   background: var(--color-code-bg);
   padding: 0.15rem 0.4rem;
   border-radius: 4px;
   font-size: 0.85em;
   color: var(--color-code-text);
   font-family: var(--font-mono);
}

pre code {
   display: block;
   padding: 1.25rem;
   border-radius: var(--radius);
   overflow-x: auto;
   line-height: 1.6;
}

/* ============================================================
   Newsletter Signup
   ============================================================ */
.newsletter-signup {
   background: var(--color-bg-alt);
   border: 1px solid var(--color-border-light);
   border-radius: var(--radius-lg);
   padding: 2rem;
   text-align: center;
   margin: 2rem 0;
}

.newsletter-signup h2 {
   font-size: 1.5rem;
   margin-top: 0;
   margin-bottom: 0.5rem;
   color: var(--color-accent);
}

.newsletter-signup p {
   color: var(--color-text-secondary);
   margin-bottom: 1.25rem;
}

.newsletter-signup form {
   display: flex;
   gap: 0.5rem;
   max-width: 28rem;
   margin: 0 auto;
}

.newsletter-signup input[type="email"] {
   flex: 1;
   padding: 0.6rem 1rem;
   border: 1px solid var(--color-border);
   border-radius: var(--radius);
   font-size: 0.95rem;
   background: var(--color-bg);
   color: var(--color-text);
}

.newsletter-signup input[type="email"]:focus {
   outline: 2px solid var(--color-accent);
   outline-offset: -1px;
   border-color: transparent;
}

.newsletter-signup button {
   background: var(--nfc-yellow);
   color: var(--nfc-dark);
   border: none;
   padding: 0.6rem 1.5rem;
   border-radius: var(--radius);
   font-weight: 600;
   font-size: 0.95rem;
   cursor: pointer;
   transition: background var(--transition);
}

.newsletter-signup button:hover {
   background: var(--nfc-yellow-hover);
}

/* ============================================================
   Search Modal
   ============================================================ */
.sk-search-btn .sk-tooltip {
   position: absolute;
   top: 100%;
   left: 50%;
   transform: translateX(-50%);
   margin-top: 0.5rem;
   background: var(--color-text);
   color: var(--color-bg);
   font-size: 0.75rem;
   font-weight: 500;
   padding: 0.25rem 0.5rem;
   border-radius: 4px;
   white-space: nowrap;
   opacity: 0;
   visibility: hidden;
   transition: opacity 0.15s, visibility 0.15s;
   pointer-events: none;
}

.sk-search-btn:hover .sk-tooltip {
   opacity: 1;
   visibility: visible;
}

.sk-search-overlay {
   position: fixed;
   inset: 0;
   background: rgba(0, 0, 0, 0.5);
   z-index: 1000;
   display: flex;
   align-items: flex-start;
   justify-content: center;
   padding-top: min(15vh, 120px);
   opacity: 0;
   transition: opacity 0.15s;
}

.sk-search-overlay.sk-search-visible {
   opacity: 1;
}

.sk-search-modal {
   background: var(--color-bg);
   border: 1px solid var(--color-border);
   border-radius: var(--radius-lg);
   box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
   width: min(600px, 90vw);
   max-height: min(500px, 70vh);
   display: flex;
   flex-direction: column;
   overflow: hidden;
   transform: translateY(-8px);
   transition: transform 0.15s;
}

.sk-search-visible .sk-search-modal {
   transform: translateY(0);
}

.sk-search-header {
   display: flex;
   align-items: center;
   gap: 0.75rem;
   padding: 1rem 1.25rem;
   border-bottom: 1px solid var(--color-border-light);
}

.sk-search-close {
   background: none;
   border: none;
   color: var(--color-text-muted);
   cursor: pointer;
   font-size: 1.25rem;
   padding: 0.25rem;
   line-height: 1;
   transition: color var(--transition);
   flex-shrink: 0;
}

.sk-search-close:hover {
   color: var(--color-text);
}

.sk-search-input {
   flex: 1;
   border: none;
   outline: none;
   font-size: 1.125rem;
   font-family: var(--font-sans);
   color: var(--color-text);
   background: transparent;
}

.sk-search-input::placeholder {
   color: var(--color-text-muted);
}

.sk-search-kbd {
   font-size: 0.6875rem;
   color: var(--color-text-muted);
   background: var(--color-bg-alt);
   border: 1px solid var(--color-border-light);
   border-radius: 4px;
   padding: 0.125rem 0.375rem;
   font-family: var(--font-mono);
   flex-shrink: 0;
}

.sk-search-results {
   overflow-y: auto;
   padding: 0.5rem 0;
}

.sk-search-section {
   padding: 0.75rem 1.25rem 0.375rem;
   font-size: 0.6875rem;
   font-weight: 700;
   letter-spacing: 0.08em;
   text-transform: uppercase;
   color: var(--color-text-muted);
}

.sk-search-tag {
   display: block;
   padding: 0.5rem 1.25rem;
   color: var(--color-text);
   text-decoration: none;
   font-size: 0.9375rem;
   transition: background var(--transition);
}

.sk-search-tag:hover {
   background: var(--color-bg-alt);
}

.sk-search-tag::before {
   content: "# ";
   color: var(--color-accent);
   font-weight: 600;
}

.sk-search-post {
   display: block;
   padding: 0.625rem 1.25rem;
   text-decoration: none;
   transition: background var(--transition);
}

.sk-search-post:hover {
   background: var(--color-bg-alt);
}

.sk-search-post-title {
   display: block;
   color: var(--color-text);
   font-size: 0.9375rem;
   font-weight: 500;
   line-height: 1.4;
}

.sk-search-post-summary {
   display: block;
   color: var(--color-text-muted);
   font-size: 0.8125rem;
   line-height: 1.4;
   margin-top: 0.125rem;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
}

.sk-search-no-results {
   padding: 2rem 1.25rem;
   text-align: center;
   color: var(--color-text-muted);
   font-size: 0.9375rem;
}

mark.sk-search-highlight {
   background: transparent;
   color: inherit;
   font-weight: 700;
}

.sk-search-spinner {
   width: 16px;
   height: 16px;
   border: 2px solid var(--color-border-light);
   border-top-color: var(--color-accent);
   border-radius: 50%;
   animation: sk-spin 0.6s linear infinite;
   flex-shrink: 0;
}

.sk-search-header-spinner {
   margin-right: 0.25rem;
}

@keyframes sk-spin {
   to { transform: rotate(360deg); }
}

/* ============================================================
   Footer
   ============================================================ */
.sk-site-footer {
   border-top: 1px solid var(--color-border-light);
   padding: 1.5rem 1.5rem;
}

.sk-footer-inner {
   display: flex;
   align-items: center;
   justify-content: space-between;
   max-width: var(--max-width);
   margin: 0 auto;
   padding: 0 1.5rem;
   gap: 1.5rem;
}

.sk-footer-left {
   display: flex;
   align-items: center;
}

.sk-footer-center {
   display: flex;
   align-items: center;
   justify-content: center;
}

.sk-footer-right {
   display: flex;
   align-items: center;
}

.sk-footer-links {
   display: flex;
   gap: 1.25rem;
   list-style: none;
   margin: 0;
   line-height: 1;
}

.sk-footer-links a {
   color: var(--color-text-secondary);
   font-size: 0.8125rem;
   transition: color var(--transition);
}

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

.sk-social-links {
   display: flex;
   gap: 0.75rem;
   list-style: none;
   margin: 0;
   line-height: 1;
}

.sk-social-links a {
   display: inline-flex;
   align-items: center;
   gap: 0.375rem;
   color: var(--color-text-secondary);
   font-size: 0.8125rem;
   font-weight: 500;
   transition: color var(--transition);
}

.sk-social-links a:hover {
   color: var(--color-accent);
}

.sk-social-icon {
   flex-shrink: 0;
}

.sk-copyright {
   color: var(--color-text-secondary);
   font-size: 0.8125rem;
   white-space: nowrap;
   margin: 0;
   line-height: 1;
}

.sk-attribution-link {
   text-decoration: none;
}

/* ============================================================
   Error Page
   ============================================================ */
.sk-error-page {
   text-align: center;
   padding: 4rem 1rem;
}

.sk-error-code {
   font-size: 6rem;
   font-weight: 700;
   color: var(--color-accent);
   line-height: 1;
   margin-bottom: 1rem;
}

/* ============================================================
   Draft Preview Banner
   ============================================================ */
.sk-draft-banner {
   background: #fef3c7;
   color: #92400e;
   padding: 0.75rem 1rem;
   text-align: center;
   font-weight: 600;
   font-size: 0.875rem;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
   .sk-main {
      padding: 1.5rem 1rem;
   }

   h1 { font-size: 1.75rem; }
   h2 { font-size: 1.375rem; }

   .sk-article-title {
      font-size: 1.875rem;
   }

   .sk-home-hero {
      padding: 2rem 1rem 1.5rem;
   }

   .sk-home-title {
      font-size: 1.875rem;
   }

   .sk-home-subtitle {
      font-size: 1rem;
   }

   .sk-post-list {
      grid-template-columns: 1fr;
   }

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

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

   .sk-nav-list {
      gap: 0;
   }

   .sk-nav-item a {
      padding: 0.5rem 0.75rem;
      font-size: 0.875rem;
   }

   .sk-footer-inner {
      flex-direction: column;
      text-align: center;
      gap: 0.75rem;
   }

   .sk-footer-left,
   .sk-footer-center {
      flex-direction: column;
      gap: 0.5rem;
   }

   .sk-footer-links {
      flex-wrap: wrap;
      justify-content: center;
   }

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

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