/**
 * Discover (blog) section — matches main site design
 * Colours: #014373 primary, #B22930 accent red, #059669 green, #f8fafc background
 * Copy in document root so /blog/ (blog_index.php) can load styles when blog/ folder is absent.
 */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --brand-primary: #014373;
    --brand-primary-hover: #003366;
    --brand-accent: #B22930;
    --brand-green: #059669;
    --brand-amber: #b45309;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --surface-0: #f8fafc;
    --surface-1: #fff;
    --surface-2: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #e2e8f0;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--surface-0);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 17px;
}

/* Nav — matches main site header */
.blog-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}
.blog-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.blog-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}
.blog-nav-logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--brand-primary), #0369a1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 15px;
    color: white;
}
.blog-nav-logo-text { font-weight: 700; font-size: 17px; letter-spacing: -0.3px; }
.blog-nav-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--brand-primary);
    padding: 3px 8px;
    border: 1px solid var(--brand-primary);
    border-radius: 4px;
    margin-left: 4px;
}
.blog-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}
.blog-nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s;
}
.blog-nav-links a:hover {
    color: var(--brand-primary);
    background: #e0f2fe;
}
.blog-nav-links a.nav-cta {
    background: var(--brand-primary);
    color: white !important;
    font-weight: 600;
}
.blog-nav-links a.nav-cta:hover {
    background: var(--brand-primary-hover);
}

/* Article layout */
.article-wrapper {
    max-width: 740px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.article-category {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--brand-primary);
    background: rgba(1,67,115,0.08);
    padding: 4px 10px;
    border-radius: 4px;
}
.article-date, .article-read-time { font-size: 13px; color: var(--text-muted); }
.article-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--text-muted);
}
h1.article-title {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: clamp(32px, 5vw, 44px);
    line-height: 1.15;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.article-subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
    border-left: 3px solid var(--brand-primary);
    padding-left: 16px;
}
.article-wrapper h2 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.article-wrapper h3 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 32px;
    margin-bottom: 12px;
}
.article-wrapper p { margin-bottom: 20px; color: var(--text-secondary); }
.article-wrapper strong { color: var(--text-primary); font-weight: 600; }
.article-wrapper a {
    color: var(--brand-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.article-wrapper a:hover { border-bottom-color: var(--brand-primary); }

/* Callouts */
.callout {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-left: 4px solid var(--brand-primary);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 28px 0;
}
.callout-signal { border-left-color: var(--brand-green); }
.callout-warning { border-left-color: var(--brand-amber); }
.callout p:last-child { margin-bottom: 0; }
.callout-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
    display: block;
}
.callout-label.green { color: var(--brand-green); }
.callout-label.accent { color: var(--brand-primary); }
.callout-label.amber { color: var(--brand-amber); }

/* CTA blocks */
.inline-cta {
    background: linear-gradient(135deg, #e0f2fe, #f0f9ff);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 32px;
    margin: 40px 0;
    text-align: center;
}
.inline-cta h3 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 22px;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.inline-cta p { font-size: 15px; color: var(--text-muted); margin-bottom: 16px; }
.cta-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--brand-primary);
    color: white !important;
    font-weight: 600;
    font-size: 15px;
    border-radius: 8px;
    border: none;
    text-decoration: none;
    transition: background 0.2s;
}
.cta-btn:hover { background: var(--brand-primary-hover); }
.cta-sub { font-size: 12px; color: var(--text-muted); margin-top: 10px; margin-bottom: 0; }

/* Tables */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.comparison-table th {
    text-align: left;
    padding: 10px 14px;
    background: var(--surface-2);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 2px solid var(--border);
}
.comparison-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}
.comparison-table tr:hover td { background: var(--surface-2); }

/* Lists – compact indent so numbers sit close to text (no large gap) */
.article-wrapper ol,
.article-wrapper ul {
    margin-bottom: 20px;
    margin-left: 0.5em;
    padding-left: 0.5em;
    list-style-position: inside;
    color: var(--text-secondary);
}
.article-wrapper ol {
    list-style-type: decimal;
}
.article-wrapper ul {
    list-style-type: disc;
}
.article-wrapper li {
    margin-bottom: 8px;
    padding-left: 0;
    line-height: 1.6;
}

/* Feed demo (personalized feed article) */
.feed-demo { margin: 28px 0; display: flex; flex-direction: column; gap: 8px; }
.feed-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.feed-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.feed-content { flex: 1; }
.feed-type {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--brand-primary);
    margin-bottom: 4px;
}
.feed-text { font-size: 14px; color: var(--text-secondary); line-height: 1.5; margin: 0; }
.feed-text strong { color: var(--text-primary); }

/* Bubble chart (valuation article) */
.bubble-illustration {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 28px 28px 48px;
    margin: 28px 0;
    position: relative;
    min-height: 260px;
    overflow: visible;
}
.bubble-axes { position: absolute; bottom: 28px; left: 48px; right: 28px; top: 28px; }
.bubble-x-label {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}
.bubble-y-label {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: rotate(-90deg) translateX(-50%);
    transform-origin: left center;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}
.bubble {
    position: absolute;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: white;
}
.zone-label {
    position: absolute;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Heatmap (sector rotation) */
.heatmap-demo {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin: 24px 0;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}
.heatmap-cell { padding: 14px 8px; border-radius: 8px; color: white; }
.hm-strong-up { background: rgba(5,150,105,0.85); }
.hm-up { background: rgba(5,150,105,0.5); }
.hm-flat { background: rgba(100,116,139,0.4); color: var(--text-secondary); }
.hm-down { background: rgba(178,41,48,0.5); }
.hm-strong-down { background: rgba(178,41,48,0.85); }
.heatmap-label { font-size: 11px; font-weight: 400; opacity: 0.9; display: block; margin-top: 4px; }

/* Signal example (composite signal article) */
.signal-example {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin: 28px 0;
}
.signal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.signal-ticker { font-family: 'JetBrains Mono', monospace; font-size: 22px; font-weight: 700; color: var(--text-primary); }
.signal-badge {
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}
.signal-badge.buy {
    background: rgba(5,150,105,0.12);
    color: var(--brand-green);
    border: 1px solid rgba(5,150,105,0.3);
}
.signal-badge.sell {
    background: rgba(178,41,48,0.12);
    color: var(--brand-accent);
    border: 1px solid rgba(178,41,48,0.3);
}
.signal-badge.hold {
    background: rgba(180,83,9,0.12);
    color: var(--brand-amber);
    border: 1px solid rgba(180,83,9,0.3);
}
.signal-factors { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.factor-group-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 8px;
}
.factor-group-title.support { color: var(--brand-green); }
.factor-group-title.pressure { color: var(--brand-accent); }
.factor-item {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 10px;
    background: var(--surface-0);
    border-radius: 6px;
    margin-bottom: 4px;
    border: 1px solid var(--border);
}

/* Footer */
.blog-footer {
    border-top: 1px solid var(--border);
    padding: 32px 24px;
    text-align: center;
    background: var(--surface-1);
}
.blog-footer-inner { max-width: 740px; margin: 0 auto; }
.blog-footer-disclaimer {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}
.blog-footer-links { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.blog-footer-links a { font-size: 13px; color: var(--text-muted); }
.blog-footer-links a:hover { color: var(--brand-primary); }

@media (max-width: 640px) {
    .blog-nav-links a:not(.nav-cta) { display: none; }
    .article-wrapper { padding: 32px 16px 60px; }
    .signal-factors { grid-template-columns: 1fr; }
    .heatmap-demo { grid-template-columns: repeat(2, 1fr); }
}