:root {
    --background-color: #fff;
    --text-color: #333;
    --secondary-text-color: #666;
    --card-background-color: #f9f9f9;
    --card-border-color: #e5e5e5;
    --button-background-color: #333;
    --button-text-color: white;
    --button-hover-background-color: #AAA;
    --available-in-aws-marketplace-image: url('/images/available-in-aws-marketplace.svg');
    --p-logo-image: url('/images/p.tile.black-on-white.svg')

    --error-text-color: color-mix(in srgb, var(--text-color), firebrick);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #333;
        --text-color: #f5f5f5;
        --secondary-text-color: #ccc;
        --card-background-color: #444;
        --card-border-color: #555;
        --button-background-color: #f5f5f5;
        --button-text-color: #333;
        --button-hover-background-color: #777;
        --available-in-aws-marketplace-image: url('/images/available-in-aws-marketplace.white.svg');
        --p-logo-image: url('/images/p.tile.white-on-black.svg')
    }
}

* { font-family: system-ui; color: var(--text-color) }

body { margin: auto; max-width: 50pc; padding: 1pc; background-color: var(--background-color); }
table { text-align: left; margin-bottom: 1lh; margin-bottom: 1lh; }

.top-menu { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1em; padding-top: 1em; }
.top-menu p { align-items: center; text-align: center; }
.top-menu p a { font-size: medium; text-decoration: none; padding: .2em; }
.top-menu p a:hover { background: var(--button-hover-background-color); }
.top-menu p a img { vertical-align: middle; }

input, textarea, select, option, button { font-size: medium; }
form p label { display: inline-block; width: 6pc; }
form p input, textarea, select { min-width: 6pc; width: 50% }
form p input[type=text]:not(:focus) .show-right { text-overflow: ellipsis; direction: rtl; text-align: left; }
form p input[type=submit] { font-weight: bold; padding: .3pc 1pc; margin-right: .5pc; }
form button { padding: .5em; margin-top: 1em; margin-bottom: 0; }
form button:hover { background: var(--button-hover-background-color);  }

pre, code, pre * { font-family: monospace; }
pre, code { background-color: var(--card-background-color); padding: .1em .3em; margin: -.1em; }
pre { padding: 1em; margin-bottom: 1lh; overflow: auto; }
code:empty::after { content: '-'; }

.error, .error p { color: var(--error-text-color); }

table { width: 100%; border-collapse: collapse; margin: 1em 0; }
th, td { padding: 8px; border: 1px solid var(--card-border-color); }
td { vertical-align: top; }
th { background-color: var(--card-background-color); }
tbody tr td { border-top: 1px solid var(--card-border-color) }
.docs-table td:first-child { color: var(--secondary-text-color); width: 8em; }

/* Article styling */
.article-container { max-width: 800px; margin: 0 auto; }
.article-hero { width: 100%; height: auto; margin: 20px 0 30px 0; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); }
.article-byline { font-style: italic; color: var(--secondary-text-color); margin-bottom: 30px; display: flex; align-items: center; }
.author-avatar { width: 40px; height: 40px; border-radius: 50%; margin-right: 10px; }
.article-content { line-height: 1.8; font-size: 1.1rem; }
.article-content h2 { margin-top: 40px; margin-bottom: 15px; color: var(--text-color); }
.article-content p { margin-bottom: 20px; }
.article-footer { margin-top: 60px; padding-top: 20px; border-top: 1px solid var(--card-border-color); }

.article-tags { display: flex; padding-top: 20px; }
.article-tag { color: var(--secondary-text-color); background: var(--card-background-color); margin-right: .5em; padding: .4em .4em; border-radius: 0.5em; }
.article-tag:before { content: "#"; }

footer { font-size: small; margin-top: 80px; padding: 20px 0; border-top: 1px solid var(--card-border-color); text-align: center; color: var(--text-color); }

.callout { padding: 1em; background-color: lightgray; border: 2px solid darkgray; }

a.ui:hover { background-color: var(--text-color); color: var(--background-color); } 
a.ui { padding: .1em .2em .1em .2em; text-decoration: none; }

.diagram { max-width: 100%; height: auto; margin: 30px 0; padding: 20px; background-color: var(--card-background-color); border: 1px solid var(--card-border-color); border-radius: 4px; }
.diagram svg rect { rx:5; fill:#f5f5f5; stroke:#333; stroke-width: 2; }
.diagram svg rect.prx { fill: #e0e0e0; }
.diagram svg line { stroke: var(--text-color); stroke-width: 2; }
.diagram svg .edge-labels path { stroke: var(--text-color); stroke-width: 2; }
.diagram svg line.light { stroke: #f5f5f5; }
.diagram svg defs marker path, polygon { fill: var(--text-color); }
.edge-labels text { fill: var(--text-color); }
.diagram svg rect.rgn { stroke: var(--card-border-color); fill: var(--card-background-color); stroke-dasharray: 4 4; }

svg .chart text { font-size: .55em; stroke-width: 0; fill: color-mix(in srgb, var(--text-color) 60%, var(--background-color) 40%); }
svg .chart rect:hover ~ text { font-size: small; fill: var(--text-color); }
svg .chart rect { fill:color-mix(in srgb, Highlight, var(--background-color)); }
svg .chart rect:hover { fill: Highlight; }

/* Call-to-Action sections */
.cta-section { text-align: center; margin: 60px 0; padding: 30px; background-color: var(--card-background-color); border-radius: 8px; border: 1px solid var(--card-border-color); }
.cta-section h2 { margin-top: 0; margin-bottom: 0; }
.cta-section p:first-of-type { margin-top: 0; }
.cta-button { display: inline-block; padding: 12px 24px; margin: 10px; background-color: var(--button-background-color); color: var(--button-text-color); text-decoration: none; border-radius: 4px; font-weight: bold; transition: background-color 0.3s ease; }
.cta-button:hover { background-color: var(--button-hover-background-color); }
.secondary-cta { background-color: var(--background-color); color: var(--text-color); border: 1px solid var(--text-color); }
.secondary-cta:hover { background-color: var(--card-background-color); }

/* Hero sections */
.hero { padding: 60px 0; text-align: center; border-bottom: 1px solid var(--card-border-color); }
.hero h1 { font-size: 2.4rem; margin-bottom: 20px; color: var(--text-color); }
.hero p { font-size: 1.2rem; max-width: 800px; margin: 0 auto 30px auto; color: var(--text-color); }
.hero-note { font-size: 0.9rem; color: var(--text-color); opacity: 0.8; }

/* Content layout */
.content-container { line-height: 1.6; max-width: 1200px; }
.section-heading { text-align: center; color: var(--text-color); }
.constrained-content { max-width: 800px; margin: 0 auto; }
.constrained-content h1 { font-size: 2.4rem; max-width: 800px; margin-left: auto; margin-right: auto; }
.constrained-content h2 { font-size: 1.8rem; max-width: 800px; margin-left: auto; margin-right: auto; }
.constrained-content p { max-width: 800px; margin: 0 auto; }
.constrained-content pre { max-width: 800px; margin: 20px auto; }
.constrained-content ul { max-width: 800px; margin: 20px auto; }

/* Grid layouts */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin: 40px 0; }
.use-case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 30px; }
.flagship-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* Card components */
.benefit-card { padding: 25px; background-color: var(--card-background-color); border-radius: 4px; border: 1px solid var(--card-border-color); }
.benefit-card h3 { margin-top: 0; color: var(--text-color); font-size: 1.3rem; }
.benefit-card ul { margin-bottom: 0; }
.benefit-card li { margin-bottom: 8px; display: flex; align-items: center; }
.use-case-card { padding: 20px; background-color: var(--card-background-color); border: 1px solid var(--card-border-color); border-radius: 4px; }
.use-case-card h3 { margin-top: 0; }
.use-case-card p:last-child { margin-bottom: 0; }
.flagship-grid .use-case-card { display: flex; flex-direction: column; }
.flagship-grid .use-case-card p:last-child { margin-top: auto; }

/* What's New bar */
.whats-new { margin-top: 2em; padding: 0.55em 1.2em; background-color: var(--card-background-color); border-top: 1px solid var(--card-border-color); border-bottom: 1px solid var(--card-border-color); font-size: 0.9em; }
.whats-new-inner { text-align: center; align-items: baseline; }
.whats-new-label { font-weight: bold; white-space: nowrap; flex-shrink: 0; }
.whats-new-text { color: var(--secondary-text-color); }
.whats-new-text a { color: inherit; }

/* Testimonials (compact — used on homepage and love page) */
.testimonial-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5em; margin: 2em 0; }
.testimonial-card { padding: 1.4em 1.6em; background-color: var(--card-background-color); border: 1px solid var(--card-border-color); border-left: 4px solid var(--button-background-color); border-radius: 4px; }
.testimonial-quote { font-style: italic; margin: 0 0 0.8em 0; line-height: 1.6; }
.testimonial-attribution { font-size: 0.85em; color: var(--secondary-text-color); margin: 0; }

/* Framed testimonials — with before-context (used on love page) */
.framed-testimonial { margin: 2.5em 0; }
.framed-testimonial-context { font-size: 1em; color: var(--secondary-text-color); margin: 0 0 0.8em 0; line-height: 1.6; border-left: 2px solid var(--card-border-color); padding-left: 1em; }
.framed-testimonial blockquote { margin: 0; padding: 1.4em 1.6em; background-color: var(--card-background-color); border: 1px solid var(--card-border-color); border-left: 4px solid var(--button-background-color); border-radius: 4px; }
.framed-testimonial blockquote p { font-style: italic; margin: 0 0 0.8em 0; line-height: 1.7; font-size: 1.05em; }
.framed-testimonial blockquote cite { font-size: 0.85em; color: var(--secondary-text-color); font-style: normal; }

/* Experience moment list (used on love page) */
.moment-list { list-style: none; padding: 0; margin: 2em 0; }
.moment-list li { padding: 1.3em 1.5em; }
.moment-list li strong { display: block; font-size: 1.05em; margin-bottom: 0.35em; }
.moment-list li span { font-size: 0.95em; color: var(--secondary-text-color); line-height: 1.6; }

/* Love page essay close */
.love-essay { max-width: 640px; margin: 3em auto; font-size: 1.1em; line-height: 1.8; color: var(--secondary-text-color); text-align: center; font-style: italic; }

/* Blog index */
 .article-list { display: grid; grid-template-columns: 1fr; gap: 20px; margin: 30px 0; }
.article-card { position: relative; background-color: var(--card-background-color); border: 1px solid var(--card-border-color); border-radius: 6px; transition: box-shadow .2s ease, border-color .2s ease, transform .05s ease; }
.article-card:hover { border-color: color-mix(in srgb, var(--text-color) 20%, var(--card-border-color) 80%); box-shadow: 0 4px 14px rgba(0,0,0,.08); transform: translateY(-1px); }
.article-link { display: block; padding: 20px; color: inherit; text-decoration: none; height: 100%; }
.article-title { margin: 0 0 6px; }
.article-meta { font-size: .95rem; color: var(--secondary-text-color); margin-bottom: 12px; }
.article-excerpt p { margin: 0; }
.read-more { display: inline-block; margin-top: 12px; font-weight: bold; }
.article-thumb {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 8px;
    float: left;
    margin-right: 1em;
    image-rendering: auto ;
}

/* AWS Service Icons */
.aws-service-icon { width: 24px; height: 24px; margin-right: 10px; flex-shrink: 0; }

/* Section spacing */
.use-cases { margin: 60px 0; }
.diagram-section { margin: 60px auto; text-align: center; }

/* Responsive design */
@media (max-width: 768px) {
    .hero { padding: 40px 0; }
    .hero h1 { font-size: 2rem; }
    .benefits-grid, .use-case-grid, .flagship-grid { grid-template-columns: 1fr; gap: 20px; }
    .section-heading { font-size: 1.5rem; margin-top: 40px; }
    .constrained-content h2 { font-size: 1.5rem; margin-top: 40px; }
    .constrained-content pre { overflow-x: auto; font-size: 14px; }
    .article-thumb { display: none; }
    .testimonial-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .benefits-grid { gap: 20px; }
}