/* ==========================================================================
   Product Marketing FR - Ghost Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variables
   -------------------------------------------------------------------------- */
:root {
    --color-bg: #FAFAF8;
    --color-surface: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-muted: #6B6B6B;
    --color-accent: #FF6B6B;
    --color-accent-light: #FFF0F0;
    --color-dark: #0D0D0D;
    --color-border: #E8E8E6;
    
    --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-body: 'DM Sans', system-ui, sans-serif;
    
    --max-width: 1200px;
    --content-width: 680px;
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #E85555;
}

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

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(250, 250, 248, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.site-header.scrolled {
    background: rgba(250, 250, 248, 0.98);
}

.site-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

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

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--color-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.main-nav ul,
.main-nav .nav {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin: 0;
    padding: 0;
}

.main-nav li {
    list-style: none;
}

.main-nav li::before,
.main-nav li::marker {
    display: none;
    content: none;
}

.main-nav a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--color-text);
}

.header-cta {
    background: var(--color-dark);
    color: white !important;
    padding: 0.6rem 1.25rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
}

.header-cta:hover {
    background: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Main
   -------------------------------------------------------------------------- */
main {
    padding-top: 70px;
    min-height: 70vh;
}

/* --------------------------------------------------------------------------
   Blog Index
   -------------------------------------------------------------------------- */
.blog-header {
    padding: var(--space-xl) 0 var(--space-lg);
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.blog-header h1 {
    font-size: clamp(2rem, 5vw, 2.75rem);
    margin-bottom: var(--space-xs);
}

.blog-header p {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 500px;
}

/* --------------------------------------------------------------------------
   Post Feed
   -------------------------------------------------------------------------- */
.post-feed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-md);
    padding-bottom: var(--space-xl);
}

.post-card {
    background: var(--color-surface);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    position: relative;
}

.post-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
}

.post-card:hover::after {
    transform: scaleX(1);
}

.post-card-image {
    height: 180px;
    overflow: hidden;
    background: linear-gradient(135deg, #FFF0F0, #F0F7FF);
    display: flex;
    align-items: center;
    justify-content: center;
}

.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.25s ease;
}

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

.post-card-image-placeholder .placeholder-icon {
    font-size: 2.5rem;
    opacity: 0.5;
}

.post-card-content {
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.post-card h2 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
    line-height: 1.35;
}

.post-card h2 a {
    color: var(--color-text);
}

.post-card h2 a:hover {
    color: var(--color-accent);
}

.post-card-excerpt {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
    flex: 1;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.post-card-author-img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) 0;
}

.pagination a {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 500;
}

.pagination a:hover {
    border-color: var(--color-text);
}

.page-number {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Single Post
   -------------------------------------------------------------------------- */
.post-header {
    padding: var(--space-xl) 0 var(--space-lg);
    max-width: var(--content-width);
    margin: 0 auto;
}

.post-header .post-tag {
    display: inline-block;
    background: var(--color-accent-light);
    color: var(--color-accent);
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.post-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.post-author {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.post-author-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-accent);
}

.post-author-name {
    font-weight: 600;
    color: var(--color-text);
}

.post-meta-separator {
    color: var(--color-border);
}

/* Feature image */
.post-feature-image {
    max-width: 900px;
    margin: 0 auto var(--space-lg);
    border-radius: 16px;
    overflow: hidden;
}

.post-feature-image img {
    width: 100%;
}

/* --------------------------------------------------------------------------
   Table of Contents
   -------------------------------------------------------------------------- */
.toc {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-md);
    margin: 0 auto var(--space-lg);
    max-width: var(--content-width);
}

.toc-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.toc-title::before {
    content: "📑";
}

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

.toc-list li {
    margin: 0;
    padding: 0;
}

.toc-list li::before {
    display: none;
}

.toc-list a {
    display: block;
    padding: 0.4rem 0;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.15s ease;
}

.toc-list li:last-child a {
    border-bottom: none;
}

.toc-list a:hover {
    color: var(--color-accent);
    padding-left: var(--space-xs);
}

.toc-h3 a {
    padding-left: var(--space-sm);
    font-weight: 400;
    font-size: 0.85rem;
}

.toc-h3 a:hover {
    padding-left: var(--space-md);
}

/* --------------------------------------------------------------------------
   Post Content
   -------------------------------------------------------------------------- */
.post-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-xl);
}

/* Paragraphs */
.post-content p {
    font-size: 1.05rem;
    line-height: 1.75;
    margin-bottom: var(--space-md);
}

/* Headings */
.post-content h2 {
    font-size: 1.5rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    scroll-margin-top: 90px;
}

.post-content > h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.post-content h3 {
    font-size: 1.2rem;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-xs);
    scroll-margin-top: 90px;
}

.post-content h4 {
    font-size: 1.05rem;
    margin-top: var(--space-md);
    margin-bottom: var(--space-xs);
    scroll-margin-top: 90px;
}

/* Lists */
.post-content ul,
.post-content ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-md);
}

.post-content li {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: var(--space-xs);
}

.post-content li::marker {
    color: var(--color-accent);
}

/* Blockquote */
.post-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding: var(--space-sm) var(--space-md);
    margin: var(--space-md) 0;
    background: var(--color-surface);
    border-radius: 0 8px 8px 0;
}

.post-content blockquote p {
    margin: 0;
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* Code */
.post-content pre {
    background: var(--color-dark);
    color: white;
    padding: var(--space-md);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--space-md) 0;
    font-size: 0.85rem;
}

.post-content code {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
}

.post-content p code {
    background: var(--color-accent-light);
    color: #c0392b;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-size: 0.9em;
}

/* Images */
.post-content img {
    border-radius: 8px;
    margin: var(--space-md) auto;
}

.post-content figure {
    margin: var(--space-md) 0;
}

.post-content figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Tables */
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
    font-size: 0.9rem;
}

.post-content th,
.post-content td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.post-content th {
    font-weight: 600;
    background: var(--color-bg);
}

/* HR */
.post-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-lg) 0;
}

/* Wide content */
.post-content .kg-width-wide {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   CTA Inline
   -------------------------------------------------------------------------- */
.cta-inline {
    background: var(--color-dark);
    border-radius: 16px;
    padding: var(--space-lg);
    margin: var(--space-lg) auto;
    max-width: var(--content-width);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-inline::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 250px;
    height: 250px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(50px);
}

.cta-inline-content {
    position: relative;
}

.cta-inline-icon {
    font-size: 2rem;
    margin-bottom: var(--space-xs);
}

.cta-inline h3 {
    color: white;
    font-size: 1.35rem;
    margin-bottom: var(--space-xs);
}

.cta-inline p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.cta-inline .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.8rem 1.5rem;
    background: var(--color-accent);
    color: white;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.cta-inline .btn:hover {
    background: #E85555;
    color: white;
    transform: translateY(-2px);
}

/* CTA Light */
.cta-inline.light {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.cta-inline.light::before {
    display: none;
}

.cta-inline.light h3 {
    color: var(--color-text);
}

.cta-inline.light p {
    color: var(--color-text-muted);
}

.cta-inline.light .btn {
    background: var(--color-dark);
}

.cta-inline.light .btn:hover {
    background: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Author Box
   -------------------------------------------------------------------------- */
.post-footer {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-lg);
    margin-top: var(--space-lg);
}

.author-box {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: var(--space-md);
    background: var(--color-surface);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.author-box-image {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--color-accent);
}

.author-box-content h4 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.author-box-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background: var(--color-dark);
    color: white;
    padding: var(--space-lg) var(--space-md);
}

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

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

.footer-copyright {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   Ghost Cards
   -------------------------------------------------------------------------- */
.kg-bookmark-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    margin: var(--space-md) 0;
}

.kg-bookmark-container {
    display: flex;
    text-decoration: none;
}

.kg-bookmark-content {
    padding: var(--space-md);
    flex: 1;
}

.kg-bookmark-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.kg-bookmark-description {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.kg-bookmark-thumbnail {
    width: 160px;
    flex-shrink: 0;
}

.kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kg-callout-card {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: 12px;
    margin: var(--space-md) 0;
    background: var(--color-bg);
}

.kg-callout-emoji {
    font-size: 1.25rem;
}

.kg-callout-text {
    font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .main-nav ul {
        display: none;
    }
    
    .post-header {
        padding: var(--space-lg) 0 var(--space-md);
    }
    
    .author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-inner {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .toc {
        margin-left: var(--space-md);
        margin-right: var(--space-md);
    }
}

/* --------------------------------------------------------------------------
   Overrides
   -------------------------------------------------------------------------- */
.site-header .main-nav ul,
.site-header .main-nav ol {
    list-style: none !important;
    padding-left: 0 !important;
}

.site-header .main-nav li::before,
.site-header .main-nav li::marker {
    content: none !important;
    display: none !important;
}