/* ==========================================================================
   ContextGate Ghost Theme — Dark Cyberpunk Design
   Matches www.contextgate.ai landing page
   ========================================================================== */

/* ---------- Reset & Variables ---------- */
:root {
    --color-background: rgb(8, 12, 22);
    --color-foreground: #f0f0f8;
    --color-card: #1a1f35;
    --color-card-foreground: #f0f0f8;
    --color-primary: rgb(0, 230, 255);
    --color-primary-foreground: #141828;
    --color-secondary: #1e2340;
    --color-secondary-foreground: #f0f0f8;
    --color-muted: #2a2f48;
    --color-muted-foreground: #8b8fa8;
    --color-accent-orange: rgb(244, 89, 37);
    --color-accent-yellow: rgb(242, 147, 13);
    --color-border: #2a2f48;
    --color-ring: rgba(0, 230, 255, 0.4);
    --radius: 0.75rem;
    --container-max: 1192px;
    --container-narrow: 720px;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

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

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "rlig" 1, "calt" 1;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* ---------- Utility ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1rem;
}

.container-narrow {
    max-width: var(--container-narrow);
}

@media (min-width: 640px) {
    .container { padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
    .container { padding: 0 2rem; }
}

.text-gradient {
    background: linear-gradient(to right, var(--color-primary), #0099e6);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 1.5rem 0;
    transition: all 0.3s ease;
}

.nav-scrolled {
    padding: 0.75rem 0;
    background: rgba(26, 31, 53, 0.5);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(42, 47, 72, 0.5);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.logo-context {
    background: linear-gradient(135deg, rgb(244, 89, 37) 0%, rgb(242, 147, 13) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-links { display: flex; }
    .mobile-toggle { display: none; }
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-muted-foreground);
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-foreground);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    border-radius: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s;
}

.nav-cta:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

.nav-cta.nav-cta-solid {
    border: none;
    background: #10b981;
    color: #fff;
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.4);
}

.nav-cta.nav-cta-solid:hover {
    background: #34d399;
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.5);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-muted-foreground);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
}

.nav-dropdown-toggle:hover {
    color: var(--color-foreground);
}

.nav-chevron {
    transition: transform 0.15s;
}

.nav-dropdown:hover .nav-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.5rem;
    width: 18rem;
    border-radius: 0.75rem;
    background: rgba(26, 31, 53, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav-dropdown:hover .nav-dropdown-panel {
    display: block;
}

.nav-dropdown-item {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    transition: background 0.15s;
}

.nav-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.nav-dropdown-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-foreground);
}

.nav-dropdown-desc {
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
}

.mobile-toggle {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    background: none;
    border: none;
    color: var(--color-foreground);
    cursor: pointer;
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    z-index: 49;
    background: rgba(26, 31, 53, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    display: none;
    flex-direction: column;
    gap: 0.5rem;
}

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

.mobile-link {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-muted-foreground);
    transition: all 0.2s;
}

.mobile-link:hover {
    color: var(--color-foreground);
    background: rgba(255, 255, 255, 0.05);
}

.mobile-cta {
    display: block;
    text-align: center;
    padding: 0.75rem 1.5rem;
    margin-top: 0.5rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    background: #10b981;
    color: #fff;
}

.mobile-section-label {
    display: block;
    padding: 0.5rem 1rem 0.25rem;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-muted-foreground);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-link-indent {
    padding-left: 1.5rem;
}

.mobile-divider {
    height: 1px;
    background: var(--color-border);
    margin: 0.5rem 0;
}

/* ---------- Hero ---------- */
.hero {
    padding: 8rem 0 3rem;
    text-align: center;
    background: radial-gradient(
        ellipse 80% 50% at 50% -20%,
        rgba(0, 230, 255, 0.08),
        transparent
    );
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-muted-foreground);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ---------- Post Grid ---------- */
.posts-section {
    padding: 3rem 0 6rem;
}

.post-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 640px) {
    .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .post-grid { grid-template-columns: repeat(3, 1fr); }
}

.post-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease;
}

.post-card:hover {
    border-color: rgba(0, 230, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 230, 255, 0.08);
    transform: translateY(-2px);
}

.post-card-image-link {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.post-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card:hover .post-card-image {
    transform: scale(1.05);
}

.post-card-content {
    padding: 1.5rem;
}

.post-card-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    transition: opacity 0.2s;
}

.post-card-tag:hover {
    opacity: 0.8;
}

.post-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

.post-card-title a {
    transition: color 0.2s;
}

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

.post-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
}

.post-card-reading-time::before {
    content: '·';
    margin-right: 1rem;
}

/* ---------- Pagination ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.pagination-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius);
    border: 1px solid rgba(0, 230, 255, 0.3);
    transition: all 0.2s;
}

.pagination-link:hover {
    background: rgba(0, 230, 255, 0.1);
    border-color: var(--color-primary);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

/* ---------- Article ---------- */
.article-header {
    padding: 8rem 0 2rem;
    text-align: center;
}

.article-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: 1rem;
    transition: opacity 0.2s;
}

.article-tag:hover {
    opacity: 0.8;
}

.article-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.025em;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.article-excerpt {
    font-size: 1.25rem;
    color: var(--color-muted-foreground);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.article-author {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-author-image {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.article-author-name {
    font-weight: 500;
    color: var(--color-foreground);
}

.article-date::before,
.article-reading-time::before {
    content: '·';
    margin-right: 1rem;
}

/* Feature image */
.article-feature-image {
    margin: 2.5rem 0;
}

.article-feature-image img {
    border-radius: var(--radius);
    margin: 0 auto;
    max-width: 1000px;
}

/* ---------- Article Body (Ghost content) ---------- */
.article-body {
    padding-bottom: 5rem;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-foreground);
}

.article-body h2 { font-size: 1.75rem; }
.article-body h3 { font-size: 1.375rem; }
.article-body h4 { font-size: 1.125rem; }

.article-body p {
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.8;
    color: #c8cce0;
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: opacity 0.2s;
}

.article-body a:hover {
    opacity: 0.8;
}

.article-body strong {
    font-weight: 600;
    color: var(--color-foreground);
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    color: #c8cce0;
}

.article-body li {
    margin-bottom: 0.5rem;
    font-size: 1.0625rem;
    line-height: 1.7;
}

.article-body li::marker {
    color: var(--color-primary);
}

.article-body blockquote {
    border-left: 3px solid var(--color-primary);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    background: rgba(0, 230, 255, 0.03);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.article-body blockquote p {
    font-style: italic;
    color: #c8cce0;
    margin-bottom: 0;
}

.article-body code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-secondary);
    color: var(--color-primary);
    padding: 0.15em 0.4em;
    border-radius: 0.25rem;
}

.article-body pre {
    margin: 2rem 0;
    background: var(--color-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    overflow-x: auto;
}

.article-body pre code {
    background: none;
    padding: 0;
    font-size: 0.875rem;
    color: #c8cce0;
}

.article-body hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 3rem 0;
}

.article-body figure {
    margin: 2rem 0;
}

.article-body figcaption {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-muted-foreground);
    margin-top: 0.75rem;
}

.article-body img {
    border-radius: var(--radius);
    margin: 0 auto;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

.article-body th {
    text-align: left;
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-foreground);
}

.article-body td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    color: #c8cce0;
}

/* Ghost cards / special embeds */
.article-body .kg-card {
    margin: 2rem 0;
}

.article-body .kg-image-card img {
    margin: 0 auto;
}

.article-body .kg-width-wide {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.article-body .kg-width-full {
    max-width: none;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
}

.article-body .kg-bookmark-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s;
}

.article-body .kg-bookmark-card:hover {
    border-color: rgba(0, 230, 255, 0.3);
}

.article-body .kg-bookmark-container {
    display: flex;
    text-decoration: none;
    color: inherit;
}

.article-body .kg-bookmark-content {
    padding: 1.25rem;
    flex: 1;
}

.article-body .kg-bookmark-title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-foreground);
    margin-bottom: 0.25rem;
}

.article-body .kg-bookmark-description {
    font-size: 0.8125rem;
    color: var(--color-muted-foreground);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-body .kg-bookmark-metadata {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
}

.article-body .kg-bookmark-icon {
    width: 16px;
    height: 16px;
}

.article-body .kg-bookmark-thumbnail {
    width: 200px;
    min-height: 100%;
}

.article-body .kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
}

.article-body .kg-callout-card {
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.article-body .kg-callout-card-grey {
    background: var(--color-secondary);
    border: 1px solid var(--color-border);
}

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

.article-body .kg-callout-text {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.article-body .kg-button-card {
    text-align: center;
    margin: 2rem 0;
}

.article-body .kg-btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 0.3s;
}

.article-body .kg-btn-accent {
    background: var(--color-primary);
    color: var(--color-primary-foreground);
}

.article-body .kg-btn-accent:hover {
    opacity: 0.9;
    box-shadow: 0 0 25px rgba(0, 230, 255, 0.3);
}

/* ---------- Related Posts ---------- */
.related-posts {
    padding: 4rem 0;
    border-top: 1px solid var(--color-border);
}

.related-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    padding: 4rem 0 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-brand .logo {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
    line-height: 1.6;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--color-border);
}

.footer-bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem 0;
}

@media (min-width: 640px) {
    .footer-bottom-inner {
        flex-direction: row;
    }
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-legal a {
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
    transition: color 0.2s;
}

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

/* ---------- Error page ---------- */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: 8rem 0;
}

.error-code {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1.25rem;
    color: var(--color-muted-foreground);
    margin-bottom: 2rem;
}

.error-link {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    background: var(--color-primary);
    color: var(--color-primary-foreground);
    transition: all 0.3s;
}

.error-link:hover {
    opacity: 0.9;
    box-shadow: 0 0 25px rgba(0, 230, 255, 0.3);
}

/* ---------- Ghost-injected elements ---------- */
/* Hide Ghost default 'powered by' badges etc */
.gh-powered-by {
    display: none !important;
}

/* ---------- Signup CTA ---------- */
.signup-cta {
    padding: 4rem 0;
}

.signup-card {
    background: linear-gradient(135deg, rgba(0, 230, 255, 0.06), rgba(0, 230, 255, 0.02));
    border: 1px solid rgba(0, 230, 255, 0.15);
    border-radius: 1.5rem;
    padding: 3rem 2rem;
    text-align: center;
}

.signup-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-foreground);
    margin-bottom: 0.75rem;
}

.signup-description {
    color: var(--color-muted);
    font-size: 1rem;
    margin-bottom: 2rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.signup-form {
    max-width: 480px;
    margin: 0 auto;
}

.signup-input-group {
    display: flex;
    gap: 0.75rem;
}

.signup-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 0.75rem;
    color: var(--color-foreground);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    outline: none;
    transition: border-color 0.2s;
}

.signup-input::placeholder {
    color: var(--color-muted);
}

.signup-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 230, 255, 0.15);
}

.signup-button {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), #00b8cc);
    color: var(--color-background);
    font-weight: 600;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    border: none;
    border-radius: 0.75rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s;
}

.signup-button:hover {
    box-shadow: 0 0 30px rgba(0, 230, 255, 0.4);
    transform: scale(1.02);
}

.signup-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.signup-message {
    margin-top: 1rem;
    font-size: 0.9rem;
    border-radius: 0.5rem;
    padding: 0.75rem;
}

.signup-success {
    color: var(--color-primary);
    background: rgba(0, 230, 255, 0.08);
    border: 1px solid rgba(0, 230, 255, 0.2);
}

.signup-error {
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.08);
    border: 1px solid rgba(255, 107, 107, 0.2);
}

@media (max-width: 480px) {
    .signup-input-group {
        flex-direction: column;
    }
    .signup-card {
        padding: 2rem 1.25rem;
    }
}